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32A-255 (106)
48 IN q 1219 MM 341N 864 MM 97)N 2d6d MM 67 IN 1702 MM 531N 13d6 MM ? � B � 331N 838 MM LLYCLtJM14 l I VYIIUry PHYSICAL DIMENSIONS ELECTRICAL SPECIFICATIONS MODEL AMPS PER LINE NO. THREE PHASE AMPS. CVM 65 CVM 80 CVM 100 MODEL VOLTS SINGLE DIMS. Ll L2 1_3 PHASE A 82.51N 1005 IN 121.75 IN CVM 65 208-240 8.5 8.5 8.5 16.5 2096 MM 2553 MM 3092 MM CVM 80 208-240 13.0 13.0 13.0 21.5 781N 961N 117.25 IN 8 1981 MM 2438 MM 2978 MM CVM 100 208-240 13.0 13.0 13.0 21.5 i e CONSTRUCTION FIRE SUPRESSION SYSTEM Full modular construction allowing ease of installation.Unit Factory piped to provide complete coverage for cooking is self-supporting and free standing without attachment to equipment hood and filter box.Final hook up of fire f building. suppression system to be done by authorized personnel. a EXTERIOR FINISH ELECTRICAL SYSTEM All exterior panels are baked white enamel finish to allow ease Unit comes prewired with UL rated components.A large range of cleaning.All alluminum components are anodized for of components are available to suit any power requirements. durability.Optional stainless steel panels are available. FILTERING SYSTEM HOOD CONSTRUCTION Unit comes with 1 set of UL rated filters,replacements are Liquid tight externally welded 18 ga.stainless steel with readily available. integrated filter bank.Hood design prevents accumulation of grease for ease of cleaning. SERVICEABILITY All service is front accessible allowing ease of service.All ETA components are standard off-the-shelf units easily serviced NV1© by any qualified service company. NOTE:Equipment utility connections by others. LNa 49e All specifications subject to change without notice. TESTED BY ETL TO BE IN COMPLIANCE WITH NFPA 96 INCLIIDING CHAPTER 11. 2 Erik Circle, P.O. Box 280,Verdi, NV 89439 (702)345-0572 Fax(702) 345-0569 REV. ITEM#47673 PRINTED IN CANADA { _ f 3� Ty AW Aftw - .0 It mals 522= mom s h f i d ' 3 r i{f{i A 1 �t io t t 1-6.2 Z-Ite primary grease filter (the first filter in line) shall be cleaned a nunimmtm of()nce per day. 11-6.3 Any ESP(s) shall be cleaned a minimum of once per week following the manufactur- er's cleaning instructions. 11-6.4 The entire hood plenum and the blower section shall be cleaned a minimum of once every three months. 11-6-5 Inspection and testing of the total operation and all safety interlocks shall be per- formed a minimum of once per month in accordance with the manufacturer's instructions. 11-6.6 A signed and dated log of maintenance performed in 11-6.3 through 11-6.5 shall be available on the premises for the authority having jurisdiction. Capynght o 1991 All Righu Roe"ed NATIONAL FIRE PROTECTION ASSOCIATION s (c) Listing and labeling of clear:utce to combustibles from all .alts, top, And bottom, (d) Electrical conrtecuon in the field only with permanent wiring to an appropriately sized disconnect or junction box. 11-3 Interlocks. The recirculating system shall be provided with interlocks of all critical components such that if any of these are interrupted, the cooking appliance shall not be able to operate. 11-3.1 All closure panels encompassing airflow sections shall have interlocks to assure the panels are in place and fully scaled. 11-3.2 Each filter component (grease and odor) shall have an interlock to prove the com- ponent is in place. 11-3.3 Each ESP shall have a sensor to prove its performance is as designed, with no inter- ruption of the power to exceed 2 min. This shall be a manual reset device or circuit 11-3.4 An airflow switch or transducer shall be provided between the last filter component and the exhaust fan to ascertain that a minimum airflow is maintained. This device is to open the interlock circuit when the airflow falls a minimum of 10 percent below its listed minimum rating. This shall be a manual reset device or circuit. 11-4 Location and Applicadon Restrictions. The location of recirculating systems shall be reviewed by the authority having jurisdiction. Items to be reviewed shall include, but not be limited to, life safety, combustibility of surroundings, proximity to air vents, and total fuel load. 11-5 Additional Firesafety Requirements. 11-5.1 In addition to the appliance nozzle(s), there shall be a fire extinguishing nozzle installed immediately before or after the first grease filter and between the last grease or odor filtration unit and the blower. 11-5.2 In addition to any other fire extinguishing system actuation device, there shall be a fire extinguishing system actuation device installed downstream of any ESP. 11-53 If not covered by 7-3.1.4, there shall be a smoke or fire detector located above the recirculating system that will sound an alarm in the immediate vicinity and in the manager's office. 11-5.4 Requirements of Section 7-5 shall also apply to recirculating system locations. 11-6 Use and Maintenance. Pew 11-6.1 Automatic or manual covers on cooking appliances, especially fryers, shall not inter- fere with the application of the fire suppression system. (Continued) ic) Alixticu v ctlutpntertt (511Cl1 .ts p:u'tteul:ue :utd Odor- retrtuval devices) cuntl)lvutt, with (1,11a1)tCt G, (1) Fire extinguishing equipment complying with the rcgturcmcnes of Chapter ', Exception: References to ducts. (g) The use and maintenance requirements of Chapter 8. (h) The minimum safety requirements of Chapter 9, (1) All the special requirements of Chapter 11. 11-2 Design Restrictions. All recirculating systems shall comply with the following: 11-2.1 Only gas or electric fueled cooking appliances shall be incorporated. Gas fueled appliances shall not have the combustion flue outlets) directly connected to the recirculating system. Gas fueled appliances shall have a minimum 18 in. (457.2 mm) clearance from the flue outlet to the filter inlet in accordance with 4-2.2 and shall meet the installation require- ments of NFPA 54 or 58. 11-2.2 Recirculating systems shall be listed with a testing laboratory. There shall be no sub- stitution or exchange of cooking appliances, filter components, blower components, or fire extinguishing system components that would violate the listing of the appliance. 11-2.5 A fire-actuated damper shall be installed at the exhaust outlet of the system. The damper shall be constructed of at least the same gauge as the shell. The actuation device shall have a maximum temperature rating of 2867 (141°C). 11-2.6 No electrical wiring is to be installed in the interior sections of the hood plenum that may become exposed to grease. 11-2.7 The power supply for any electrostatic precipitator (ESP) shall be of the "cold spark" ferro-ressonant type in which the voltage falls off as the current draw of a short increases. 11-2.8 Listing evaluation shall include the following: (a) Capture and containment of vapors at published and labeled airflows, (b) Grease discharge at the exhaust outlet of the system not to exceed an average of 5 mg/m' of exhausted air sampled at maximum product capacity over a continuous 8 hour test per EPA Test Method 202, Determination of Condensible Particulate Emissions from Stationary Sources. (Continued) T ntauve Interim Amendment NFPA 96 Vapor Removal from Cooking Equipment 1991 Edition Reference: Chapter 11 T.I.A. 91-1 Pursuant to Section 15 of the NFPA Regulations Governing Committee Projects, the National Fire Protection Association has issued the following Tentative Interim Amendment to NFPA 96, Standard for the Installation of Equipment for the Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment, 1991 edition. The TLA was processed by the Venting Systems for Cooking Appliances Committee and was issued by the Standards Coun- cil on October 4, 1991. A Tentative Interim Amendment is tentative because it has not been processed through the entire standards-making procedures. It is interim because it is effective only between editions of the standard. A TIA automatically becomes a Proposal of the proponent for the next edi- tion of the standard; as such, it then is subject to all of the procedures of the standards mak- ing process. I. Add deftnition to Section 1-2 as follows: Recirculating Systems. Systems for control of smoke or grease-laden vapors from com- mercial cooking equipment that do not exhaust to the outside. 2. Add new Chapter as follows: Chapter 11 Recirculating Systems 11-1 Recirculating systems containing or for use with appliances used in processes produc- ing smoke or grease-laden vapors shall be equipped with components complying with the following: (a) The clearance requirements of 1-3.2, (b) A hood complying with the requirements of Chapter 2, (c) Grease removal devices complying with Chapter 4, (d) The air movement requirements of Chapter 5, Exception: 5-2.1 and 5-2.3. (Continued) INM X .0. Hazard area,single Operating procedures ......... .............. ....... ...... 00111111011 ........... ........ ....... .... —..................... 1-2 Hoods .................................. 2 As'sclilbliss, listed .... ..............................................)A CIUAIMIC(. ................ ...... .. . .. ....................... 1-3.2 -P- 0)11S11-"Ctioll ......... . ... ................ ...............4-1, 2-3 Defilli(ioll ........................................•.................. 1-2 Pitched F-d-list fillis . ........ ... ........... ................... 5-2.2' 5-2.3 Dulillilioll (:tease renewal devices in ...........see Grease I-clum al (lc\,i((.s Insulation "imucli;lls . .............. ...........................2-1.'S [( ;Itc(l SUI)JAV air p1c,1111111, .... ............ ............... ................I............................. .. ............. 2-2 Removable ........ 1-2 Incinerators,fume ................................................. 6-2.6 Dch"Itioll —..... ...... ... ..................................... 1-2 Inspection ...... ....... ......................—............. ....... -s- Insulation materials, hood ..... . ..... ................. 2-1. Interconnected Safety requ i rein ents .. .... ...... ............ ...... 9 D(dillitioll .... .... ... . ............ ........................... 1-2 Salamander broiler ........ ...........—....... sec Brmlci. up,Ight Scope of standard ......... ........................ 1-1, Single hazard area .... ................. s.cc Ila/;ii(I ai(-a. sin lc Solvent Dchnili'm �.. ...... .............. ...... Spaces,concealed Lighting ........... .. .................... 6-2.3 thi it G-2.I Pch"itio'' ... ........ .. ... 1-2 Limited combustible 1)(11111601) .. .... .... ... . ... . .. .............................. 1-2 Liquidtight Dulillilioll ..............................................—... 1-2, A-1-2 T. Termination Dchnilion .. . .... ...... ................... 1-2 Thermal recovery unit . ........ ...... Dchilit ...................................................... 1-2 Maintenance ..... ............................ chill), S Traps Multiple tenancy applications ............... ..... . I-3.1.2 Dchililioli ......... ....... ........ ........ — 1-2 -N- -NV- Noncombustible materials Weld,continuous external Dclillitiolls ................ ............ ...... ..... 1-2 Dchintimi - ... ....................... ....... 1-2 1991 Edition 96-24 Rh::vu)v�AL N. S%R)FI AM) I)I:N V: NWS I ROM COMM RCIA1.COOK I\(I H)I II'yn�A I Index P)9I :A;ttiorn;ll Fire Prole(lion :1„11(i;uion, All Rcu•r%ed. I he(opvright in this illdcv is S" );oalc ao(I (it,tin(1 lion) the(opvI Ight in the•document 111:11 it indux(s. I he litcn,in pro,I'lon, sit lot lilt the doeonluill arc not applica�ile In till, in(Ies. lLi,in(Icy nett not hc reprodll(cd in (:hole m in part he anc nu;o1, „ithoot the eyp1e„ ,sritlen permission of the A':itiollal I-ire 1'rourtioll Assmialioo. In(. -A- Dcfinition ............................................... ........... 1-2 GIcast: ............................................._.......... :; I. a-:, Accessible,easily Dcfinitiun ................................... .-6.... , ....... Uclinition 1-_1 lnstall;it ion ............... ... a-:,.", 3-li, _i Fib. ........................................................... Air, replacement Openings .. .................................................... ';-:; Ut•Gnition 1-2 1'rotc(non of ..................................................... 7-I.'' Airflow -,-v 1'c1 nntlau(m ............ ........................................... :;-S Air intakes f)ctminon ........................................................... 1-2 Air movement ...... ........ ... ....... :111 Ilo,c ..... ....... ........ ... ....... "(-_' •E- I.sll:ul,t Rcl,la(cnucol ail ................... ...... ....... ",-:; Electrical equipment .................. ............................ 6 2 Air pollution control devices . ........ ........ .. ".1i Enclosures, continuous Dcltnition ........ ........... ..... ........... ... ._. ... .. I `-' Uclinition .............. . ... .. ........... ... .._ .... .. . 1-_' Appliance, flue outlet Equipment Du nlition .. ......... 1-2 \oxili;II\ (:It.tp. G Appurtenance D;IIIIpers ..... .....:.....................,.............. .__ ._.. 6-1 Dclinition ... ....................................... ............... 1-2 1-lc(IIic;tl ......................................................... li-" Automatic (hhc•r.-...._................:............................__... 6-:1 Dclmition .............. ....... ........ I =' Cooking ....... ............................ sc•c Cookin equipment bite c\tinguishin ............,cc I irc c\lingoi,hing cgtlilIlmc nt I;IIIllcllmI((•:111(1 osc•of .................._................ (atop. 1) Exhaust systems, cooking equipment ._.......... 1-:;.I Ilu tt 1-:).I -B- Extinguishers, portable riire................................. 7-2.1, Extractors, grease .... .. . .......................... ............. S-1.5 Baffle plate (:Icar:uu . _.................................................... . Ucfinitinn ....._.. I-! UcGnilion ....... ................. ................. .. Broilers, upright Dclinilion ... . ... ..... .. .._ . ...... 1-2 -F- _C_ Fans,exhaust ........................................................ Filters, grease ......................................... 1-2.:; lhro 1-2.l1 Cleaning ............ . ._. ....._ ....... -:;, :\-ti-:;.I Duftnilion I-" ........................................................... Clearances .......... _. .............. ......... 1-:;.2. A-1-3." Fire extinguishing equipment ............. ............... ..(:hap. 7 Clearly identified " lo,pc(lion ............................................. ............ S-" Dcfinmoo . .. _.......... .... ............................ ....... 1-2 O1)(Taking rc(loir(nu•nt. .......................................... -:; Combustible material Port;tltl(• ........................................ .................. 7-".I (:Ir;tr;ln(r ... ........ . . ........ ....................... .. . :\1111. :\ R(quircd .......................................................__. 1-1 Dclnlition .................. ........ ......... ....... 1-2 Rccic,c ;u1( (.1 Ill]( ................................. 7-1 Concealed spaces I,pc, of .._................................... ..................... -'_' Dchilition ..................... ............... ............ ...... I '-' Fire partitions Continuous enclosure .........-_...... sec Enclosure,. (ontinoou, I)clinition _...................._............. ......_..... ....... I-" Continuous external weld ...... ... sec 11'cld, (oot ill Timis cmcrn;tl Fire resistance rating Control, high limit Defini(ion ..._......................... _........ ..._.. ....._. 1-' Dchilili( 1t ............... ........................................... I-`_' Fire walls Cooking equipment DchTlition .......................................................... I-" 1•:\hml,1 systems _....... ...._....... .._........ I-3.1 thru :-:;.1 Fryers,deep fa[ V-" Ins IiII LI tinn ............. .............. SI-I." Fuel,solid cooking 1 g(()lilt(,I .. .............. .... .......... " Dclinition ......................................... I-" S,tfct, r((luir(nlcnt, ...... _ ............ ..... ..... Fume incinerators .......... ................. c loin l;ilol. Inn1c Cooking fuel, solid ............ ...................... ........ I-' Fusible links Uclnlition ..... ........... ............... ................ -D- -G- Dampers .........._.. ........... .... ...... ti-1 ........................ Dchilition _............................._..... ._................. I-'', Grease bite-mIo;ucd .. ................ .................. '-:� L". :\ _'-:..I." 1)cfiIIiIioII .......................................... ............. .. 1-2 Detection devices Grease ducts .......................................... ,cc Do(is, rca,(, UcGtliliotl ...._.... ........___.... ................ 1-" Grease extractors ............. ................ ,ec l:xu aru,u. qr(a Dips Grease filters ........................................ ,cc I illcr,. ,rT Dchilition . ....... 1-" Grease removal devices ....._........ ......... ............. (:11;11,. I Discharge I)cliniuon .. ... ...... ...................... ............ Dcholliot) .. ..... .... ..._........ ....... .. .... ...................... ...... !-- Ducts (duct systems) ............. ............ . .............. (:hap. :t Greasetight (:I(:n;onc I-a '_'. `; " Uclnnuon .. .. ............... ............ . .................... 1991 Edition \1.1'1:\I11X:\ 96-2:' �I I U L_JIlllIlL_ IIIIIII G IIIIIII IIIIIII .0 o CONTINUOUS LIQUID-TIGHT WELDED CONSTRUCTION GREASE-TIGHT CONSTRUCTION FIRE ACTUATED DAMPER MULTI-BLADE FIRE ACTUATED DAMPER GIIIII ni REGISTER/PERFORATED PANEL Figure A-2-3.1.2 Examples of exhaust hood assemblies with integrated supply air plenums.Sec requirements in Section 2-3. 1991 Edition 96—`2 OF SMOKL AN1) VAPORS FROM COMMERCIAL.COOKING EQUIPMEN°I Duct oil Com hu sYible material L 1" Mineral wool bat 1" NoncOI b—Tihle— spacer I 22 Ga. sheet�itetal Plan section V No n c o m ores t:b l e space, such as stacke,j —0-r-s, Small diameter pipe. whiny.Or electrical coed-1 NMI or screw anchor I �9. � j \ l t Duct l 1 No nc o mdust,hie - 22 Ga. sheet metal Wiremesh 3" 3 V \ — 1" Mineral wool hat Side Figure A-1-3.101 F:camplc of clearance reduction system(b);3 ir.,clearance to combustible material. 1991 Edition .AI'I'I AI11X .A 96 '2 1 Corn bustlb le material •1 9 —Du t J 9.. 9" 9" x i 28 Gauge � sheet metal Plan section, 1" Noncombustible— spacer tI r place Nail hor - II / \ Combustible--\ / material Duct 1" Noncombustible spacer / 1" Noncom Lu si�bie 28 Ga. Sheet —:al spacer- / �I sh a,.sta d cke wash cr<, -. `:,ucmall Tubing, or electrical cond�i it Side section Figure A-1-3.2(e) Example of clearance reduction system(a);9 in.clearance to combustible material. 1991 Edition 96-20 I-ILM VAI OI SNIOKI \\It(;ar:ASl-.-LADl-\ VAN)111� I-RMl a1Mnn-.R(A Lax KIN(; IQ[ II' IAI 3-8.22 Discharge � -- 10"-0'" Exhaust fan Access&Panel Access panel 3-3.4.3'. Access pane! 40" Weather pro,ected 3-8.2.3 opening Roof I 3-7.1.1. Not less than 1-hr 3-7.3 fire resistance for building Openmq in enclosure less than 4 stories in height 3-7.1.3: - - 3-7.1.2'. Not less Than 2--hr -NOi less than 18"clearance fire resistance for building to corntrstnbles 4 stories or more in height - -Not less than G" to timited- 3-3.4-3. or nonco mb ustlbles Access panel r ire ra 1,,d Ito.r —� Second story 3 5.1 r'—d -Ij .\ C.Cn(�Il Llo its ear lOSUre / Grease dur.i 1-3,2 f 0''To ,o-,o mbustrhles 1-3.2: 3" To limf4ed- n-bust!bles 0" To noncombustibles 18"Clearance to combustibles 3"To limited-combustibles unless pro sec tecf i a¢orcla nee 18"Clearance to combustibles with exception no 2 or 3. unless protected in accordance J with exception no. 2 or 3. I Sealed around the duct at this point since fire-rated cor Exhaust hood— V 1 Figure A-1-:S.2(d) Topical section riear fur building Nith two stories or oldie e'ith nonlirc-rated ceiling and fire-rated fluor. 1991 Edition APPICNUIX,% 9G—1 r.l 3-8.2.2 Discharge 10._0.' � •V / \ Exhaust fan '1L1f 3-3.3& 5-1.2 Access panel 3-3.4.3. Access panel L'0 a 40" 3-7.1. 3-8.2.3 Weather protected Roof opening 3-7.1.3. 3-7.1.1: l -Not less than 18" learance Fire-rated roof- 1-hr rated to combustibles ceiling assembly continuous 3-5.1: Not less than 6" to limited- enctOsure Grease duct or noncombustible, 1-3.2: \ 0" To non combustibles 1-3.2: 3" To ilm:ted-combustibles 0" To noncombustibles 18" clearance to combo stables 3"To limited-combustibles unless protected In accordance 18" Clearance to combustibles with exception no. 2 or 3. unless protected in accordance \ with.except on no. 2 or 3. 3-7.1: Exhaust hood Sealed around the duct at this point since fire-rated riot-ceiling assembly Ow Figure A-1-3.2(c) Typical section view for one-story building with fire-rated roof-ceiling assembly. 1991 Edition 96-18 RL',IOVAL OI S.VOKI!AND f;RI ASIC-LAI)I.N VAPORS I=RMI (:UAIAILRCIAI-COOKIM; LQI'IPM I.N I- 3-8.2.6 Hinged,up-discharge 10'-0" - — — exhaustfan i 3-8.2.2 3-8.2.3 I I W'either p-otei red i —'. — -J Roof o��eniny 13' 3-7.1.1 Not less than 1-hr-- fire resistance for building 3-Z1.3. less than 4 stories in height �� -Not less than 16"clearance I to com bu stables -Not less than 6" to.limited- 3-7.1,2: Not less than 2-hr-- or noncombustlb!es fire resistance for building .. 4 stones or more in height 3-3.4.3: —. I ( I --3�-7.3 Access panel - Gpon;ng I�:enclosure mot— I i i 3 -tow� Cont'.nuos 3-5-1- en C!OSU re u i Grease dnCt jT 3?. 0 o-non corn bu stibleS �I p' 7o noncom bu stibles 18 cl I�rru tea-combustibles 3"To liotited-combustibles 18"clearance to combustibles finless Protected m accordance \I 18"Clearance to combust i,les mess Pro tee tea �n aC:oldalce -.1,e><ceptron nc. 2 or 3. _/ith ex cep uon no.2 or 3. I / \ E,cnaust nood Seared around the dut_t at this point s.nce fve-ra:ot7 f l o o r'c e,l�nq rise rashly � I f� I h V _1 � �I I el�l1� Figure A-1.3.2(b) Typical section sicw for building with two-stories or nxtre with fire-rated floor-ceiling assembly. 1991 Edition 96 1 r 3-8.2.6 Hinged,uu-d inch argc exhaust fan i 3-8.22 I' 3-8.2,3 I T � 18" RoomI l Grease duct — i- Cc- �1- ""��--- 1-3.2 0"' To nonconno Stihle5 1 3 2 —'/ 3" To limited-combust,bles p" none-ah,�st�hiec 18"'Clearance to combustibles 3- r„ te�i r-o���bus;�hins unless protected .n accordance 18'�CJ enrance t.> on�t,�i stit�ies In excepmon no. 2 or 3. I I lid Figure A-1.3.2(x) Typical section view for onc-story building without fire-rated roof-cciling assembly. 1991 Edition 96-1(i 1:F%IO% A1.Or SMOKL AND GREASE-1_vDEN VAPORS I:ROAI COMMiLRCIA1.COOKING t.Q1 IP.,v11-A I Table A-1-2 Examples of Types of Construction Assemblies Containing 'AAA Noncombustible, Limited-Combustible,and Combustible Materials Classification for determining hood and grease duct clearance' Co ! 44, J� Co °170� J� 1 TYPE OF WALL ASSEMBLY O U O brick,clay tile, / concrete masonry products Plaster, ceramic or quarry the on brick, / clay tile or concrete masonry products `�// plaster on metal lath / on metal studs 9ypsurn board on metal studs solid gypsum board' plaster o,i wood lath or metal / lath O11 wood sttld5 V/ 9YPsum board on wood studs plywood or other wood v A"l sheathing on wood or metal studs 1/ TYPE OF FLOOR-CEILING OR VVV ROOF-CEILING ASSEMBLY plaster applied directly to underside of concrete slab suspended mernbrane ceiling a) with noncombustible mineral wool acoustical material a)✓ bl with combustible fibrous tile b) gypsum board on steel ' joists, concrete slab gypsum board on wood joists _ tit•(•,Ic"I'.lnrr I cIIlenis in I :5.'_'. "Solid ,14NI—un wa11s:unl p.iintion.. `? ur" .,Illit{.nca. 11( (Irslriked in ib(. Fier krvslnmr Urll�nl \I-o"d Inlhlishc(I ht tht-(.tl>.utu .Assnti;uion. tC;IShin,Glun. 1)(:. Gqt 1 1\:111--tilbls (1, (I 1pllons.1-olllc..Illly LI(ing, nl:ncrial on both shit's of sited'. N. ! c,:it r not rh:ul,('ll hs ust of III'.rct:u(hilt itvalcd (rood III"(lu(1, \oo.:i. (:.ut•,gorics:nc nol �h:n1,Gt•(I hl ow ul illx. \g\l)sunl hu:nrl. \olc I Scr rlrllninoll, oI Inlnbuslihi" hluilcd nmlbuslihlc. :Illd non(unlbusliblr in Sc,linu 1-21 Ih•Irtulion,. 1991 Edition NI IN sn;atSAFEIN i(t:(It n(t:IFNisr(n(co()ri.Nct.( A11\11 y-r 96-15 Chapter 9 Minimum Safety Requirements NF!':\ 17, Standard Io, I)n, Chr,,,Ica l I:xtin ,nshi,r S)slr,,,,, for Cooking Equipment 1990 edition 9-1 Cooking Equipment. NFPA 17A, Standard for I1'r,l Chrm;cal l•:N1in('10.411l Svs- Irnts, 1900 e(liiion 9-1.1 Cooking equipment shall be approved based on: NFI'A 70, Nal;o,x,l (ilrrlriial Code, 1990 e dilion (a) Listings by a testing laboratory, or (b) Test data acceptable to the authority having luris(1ic- NFI)A 80. ,S1mrrlar;11nr For Doo,_� awl lViudo:e , 1990 c(li- tion. nun 9-1.2 Installation. NFTA 259, Nlamlmd Tc,i Mo,thnd /rn I'ntr„tial llt,w of Iiuilrlin� rllaleria/s, 1987 edition 9-1.2.1 All listed appliances shall be installed in accor- dance with the terms of their listings and the ntanulactur- 10-1.2 ASTM Publication. :American Society lot Tesiiog ci's instructions. and Materials. 1916 Racc Succt, Philadclpltia, 1'A 19103. AST NI F,13G-1982. Slowlarr/ Tr.s1 ;l(r'lhud /nr lirha;4w of 9-1.2.2 All deep fat fir}'ers shall he installed wilh at least ;t ,11o1r'nnl.c ;n a I'rrli(al 7�ubr Fr )'unrr° (it 750'(" 16-in. (406.4-nun) space bcts-een the f1-vCr and surface flames from adjacent cooking equipment. 10-1.3 UL Publication. Undcrwrttcrs Lahoraluncs Inc., 9-2 Operating Controls. Deep fat frvers shall be :3"'3 N ligstcn Road, Northbrook, It, 6006 2. equipped �sith it separate high limit control in addition to the adjustable operating control (thermosta() to shut off liL 723, Tact/W S,Owt, R,onn, C:harrrrtrrichcc of B11IN;nI, fuel or energy when the •tt temperature reaches 17511' 1lnlrrials (21WC), I in. (255 nun) hclow the surface. Appendix A Chapter 10 Referenced Publications Th,.,,l p/rrndis'L, not a lu,r1 of Ilrr rrgn;rrmrnh o/ill is.ATPA dorr,n,r,rl 10-1 'I'hc following documents or [)onions ihcrcof, are Gtrl i, m(h,drrd/o) m1ol ration /un/true, ooh. referenced within this standard ;111(1 shall he considered part of the raluirements of this (1ocunlent. The e(litiou A-1-1 'I he applic;uion of NI-TA 9(i is concerned with the indicalcd lot each IciclC11(e is the (111-1enl edition as of,the potential fire h:1z;11d of cooking operations, irrespective of date of the NFI'A issuance of this (1ocumcnt. the tvpc of cooking equipment used, sshcth(•r used in pub- Ii( of pmatc facilities. 10-1.1 NFPA Publications. National hire Protection Association, 1 Ratervntarch Park,'I,.(). Box 4)101, ()Ilill( I he stan(1ar(1 is also intende(I to include res icillial NIA (122(3')-4)101. cooking equipment where u.scd lot purposes other Than residential fanlil) use such ;is employee kitchens or break NFI'A 10. Standard for I'ortab/r Farr 1990 areas and church and meting ball kitchens regardlcss of edition ficy1clin of use. Sincc the standard cannot address spc- cih( iust;tllation>, the ludgntcttt must be made by the N'I'PA 12, Slandanl on Cmbim D;owb, Fs1;ngio4m,, S)s- authoriic h;ningltn'isdimon. lrms, 1989 edition A-1-2 Scc 'Iablc :A-1-2. NI-TA 13, Standard ,(M the Installation (I/ Spnnh1r) Nv%lr•,ns, 1959 edition A-1-3.2 Sec Figures NFPA 16,Standa.r(l mr DebI r Foam-11'ater.Sfu;nlder N)_slr,ns and Forn,r-Water Spia.T Sy,win.s, 1991 c(lition A-2-3.1.2 Scc Figure A-2-3.1.2. 1991 Edition 96-14 RF MOVAl.OF SNJO:E AND GRF:ASFAADEN VAPORS FROM COMMERCIAL COOKIM; t.c,c'lrntl.N I sNslcnt detectors, piping, nozzle,, furl shutoll devices, 8-2 Inspection. agent storage container(s), and manual acUCrion devicc(s) shall be submitted to the authority having luris(fictiotl. 8-2.1 All rlspecuou and servtcutg of the fire exlinguislt- nlg system by properly trained an(I qualific(I person, shall be made of least every six months. 7-4.2 Installation of systems shall Ile made only by per- sons properl.N' u-ained and qualified to install the specific No IT.: It is reconimcoded that Suclt training and qu,tlili- System being provided. The installer shall certify to the c;uion be by the tnimufacttuel of the c•quipntcnt being authority having jurisdiction that the installation is in corn- inspc(lud and serviced. plete agreement with the terms of,the listing and file mall- 8-2.1.1 All actuation components including rentotr [rrun- ufactur(:r's iltsuuctiors and/or ;tpl)rovcd design. ttal pull stations, otechanic;tl or electrical devices, detectors, actuators, etc., shall be checked lot* proper operation (lur- N011:: It is reconun(n(Ied that such uaiuingand qualili ing the inspection it accordance with the nt:nnlfacturers cation be by the nt;utulamlier of the equipment being installed. listed procedtn-cs. In addition to these rcyutrentents, spe- cific inspection re(luirentents in the applicable NI-TA stan- 7-5 Portable Fire Extinguishers. da-d �Srr 7-3??) shall also be fitllowed. 8-2.1.2 Fusible links and automatic sprinkler heads shall 7-5.1 1'urtahlc lire extinguisltcrs rcyuire(1 b( i-`?.I shall be replaced of Icitst annually or none frequently if ncces- be installed in kitchen cooking ;ue;is in accordance with sill'y to rnsurc proper operation of the system. Other NI-TA 10, Slnitdaid lot Porlable hit(• 1,'Xlitivtci.rh(•t_c, Fable (1(tection (devices shall be seryic r rd o replaced in accor- _i-'i.l tot Faua (high) Ilacard. dance with the ntanufactu er's reconunendations. NO 11 '1 It(,system owd to ime extinguishers on Class It lixrrl)tiott: 11''hrtt aatuuralV ors/mlt aozz1P5 hies (Planuuable liquid, in Depth) does not take into con- are used ottd ommal evullioahmi s/tou.� NO hilddlip of of sidclmion the special nature of hc;ted grcasc tires. Cooking olltr•t molf'rial oil,the s'Pnlohlrr'm.s1mly Muzzle's. g revue lires air :t special Itarand requiring agenl, suitablt• Im this application. Eminguishcrs conotining soditini Meal- 8-2.1.3 If re(limcd, ('ci tifi('atcs of.inspection and maiilic- botr,uc or potassium Imillbonaw (Ire chemical ;uul pools- n;utce shall he lin'wio'eleel to th(• authorize hin'ing jrris- siunt carbonate Solutions ;nr considered suitable: others diction. netv not he due to agent duo; icristics. NfanuLtc till(•I'S rec- onuocodaion, Should be lollom.d. 8-3 Cleaning. 7-5.2 Oihci fit(, cxtingoi,hcIS in the kitchen ;unit shall be 8-3.1 Ifoods, ,ic;isc icinmal de\(cs, fatty, ducts. auc4 . installed in ;1((m(1;111(e wifli A'I-TA 10. S7aodard lot PoilaNr other al)pto_tcn;m(cs shall be (lciutcd to hire metal al Inc Fern F.),/m" Uncut intervals prior to surfaces hcconling heavily conurn- milled with grease or oily sludge. TIlcs shall be inspectCd at (east cycry six months. Chapter 8 Procedures for the Use and NO I F.: llepcu(hug out the amount of cooking equipliwill Maintenance of Equipment usage the entire r\haust system, including grease (•\rac- tors, should be inspeocd (laity or (\rcklc to d(urntinc it 8-1 Operating Procedures. gi tike or other residues have been deposited within. When grease or other residues arc in evidence ;IS deposits within 8-1.1 F'xhaust systems sln;dl he opel;tle(l eluting all pcii_ the hood, ""case removal (Icyiccs or ducts, or both, the sys- ods of cooking. tent should be cleaned in ith Section 8-3. 8-3.1.1 \\'hen a vein cleaning scl\ice is rsed, ;t certificate 8-1.2 Filter-cquippcd cxhintst systcnns shall not be open- SlImNing dare of inspection or cicaoirtg shall br maintained ;red with filters remmed. on the prentiscs. :Areas not cleaned shall be noted. 8-1.3 Opening, provided liar replacing ;tie exhausted 8-3.2 Flammable solvents or other flanonahle cleaning through ventilating c•(luipmcnt shall not he rc,iri(tcd h� aids shall not he rsed. cosies, d;nnpers, or any other inters that would reduce 8-3.3 \I the st;m of the cleaning process, electrical the operating efll(lellcy of the exIlmisl syStcnt. I syitclus than nt;ty be accielenCtlly actiyate<l shall he Iocke(I. out. 8-1.4 Instructions lift nr,rtually operatiog the fire cxtin- guishing syslent shall be po,t(d ronspiruou,ly in Ih( 8-3.4 Care shall he taken not ut apple cleaning chcnfical, kitchen and sh;tll br teyi(•wed periodically with entp1mce, on litsihlc links of other detection device, of file ;muonr,ntic I)% the maltagcntcill. cytiogui,hing ,yStmt. 8-3.5 \1•Ill-A CLI`.ANING I'ROCF:IWRI-.S :1R1: COAI- 8-1.5 l.i,ted grea,e (All oi(tor, ShAll he opened in actor- I'l.Fa FD. ALL 1-1.1 :Il l(..\l. S11•I Will''S, UFA V('IION (lance with the roof, of Iheir IISlingS and nt;otufacforc1', l)I:\ ICF:.S. AND Sl'SII:\1 CO\II'OA'l:A I S SI I:\l.l, lit: n,u action,. RF:Fl RA FD I'O AN OI'LR:\IiLI: S 1:\l F: BY (.)l :\LI I'll—A) I'LILSONNEI. IN ;A(:CORDANCF \V•1"If1 7-I._'. COVI.R 8-1.6 Cooking c(lril)n•ent shall nut be operated while ifs I'L:1I'I'.5 511:1L1. lit: RF:1'L:AC Fall, :AND U:AAII'1:1:5 :1N1''^' lire cxtingnislting scsicnt or cshaust syslcnl is n000pcta- UIFFI'SF:RS SIIAI.L lit? i'OSII IONI'D FOR I'ROI'Ek tiunal or otherwise impaired. :AIRFLO\1'. 1991 Edition I l k I_ IA I IM,I'ItiIII,N(, I(.)I IPNNII.,A 1 Oti I:; 6-2.3 Lighting units haling steel enclosures moulted on 7-2.2.2 Other autonimI( fire evting,itishin� "N"tcnu the oulcr sill lit(c oh the hood ;111(1 ,cparalcd 110111 cxh;nt,1 insiAlcd in (onlpli;uuc N\lilt the Ilion isinns o1 111c 1()11()\%ill', lit odu(is 111 tight-fitlilig glans .11,111 be permined 111 he used. I;uld;II d" 1011(1( ;1ppi1( 11)1( Il'.A I'_' 1lr;rr�luI,/ ��1r l aril",(( ltnnrrl, 1,vIIII��rrr,irrrr, v,,,l�no fi-2.4 l.i,{hlitl,� 111111~ r1u 11nr�(1, �.11.i11 n��1 lie lu(,iie11 in 1 riit- (calcd "pace". \I.PA I:S. .1'trurrh III i /n; Ili, III,lrrllouoir n/ .1funrhlrr fit, I.;.rrrftlioo Vo. l: 1f7rrrr frnrl o/ n /Wrd I(rrrnr rCllorlor. NITA Ilk. SVo?ol:rd rw I)rlrrg, hnnrr;-Ifrllrr .1fonJ;lrr rnrrl [:.1�rrftlion .A'n. 2: Wbrrr c/trrr/oolll lr,Irrl fnr 'o(h ror and I onrn-fl olrr .Spill) .1ti,lr rn, wlnllyd nr orrorrlaorr wilb Mr Ir)PIIy of Mr 11,11((~. NITA 17. .Slnrrdlt;l for lilt' (:Lrurirol I:�lur�ur,hnr; .11,Irut,. 6-2.5 All ciccui(al c(Iuipincnt shall be installed in a((or- (lan(c (cith NITA 71), ;Voliorutl I-:lotiool la)d,,, N%iih du(. 7-3 Operating Requirements. rc,g;ud to the of 11c;u, \;1por. ;nr(I o11 111(' c(luipilicnl. 7-3.1 I-ixcd pipe crluipnlcrli .11;111 lac uuclllcrl Ili conf(n11I (\till 111( 11,11( cu1L� Icyu11c11wni': 6-3 Other Equipment. Fumc M(inci,tim . Ili( I nI;11 rc(occrl units, ;fir polhuion (onlrof dc(iccn. m oihc1 7-3.1.1 A rc.nlil( ,i(Ic—ildc ni( ,it, if�i in;lnnal it(IIv it inn dc(i(cs -haul be pernliucd 10 he installed in duct, oI flood, of t11c loc cslln4uullul�, svvcn1 .11.111 he Ili mldcd in a pill 11 M r I(1 M(A in the path of u:ncl of cxhaosl produ(u (chc11 (d exit or ct�rc", ;111(1 shall he (Ical IN idcnlilicd. tiuc11 n1c;1n> "pc(ih(alh approxcd lot sueh nsc ;u1d shall not ill(Ica"c ,11;111 he nu•(h;u1i(al ;uul ,11;111 not Icic I cIc(III(al po(ccr the fire hazard. Do"ngnuling other p;uu of the exhaust 101 ;lctu;tli(m. s1"tcnl (Inc 10 the inslalLuioll of these approved dc\ires, lchether listed or not, .shall not he all(mcd. ll,vn'f;liou ,Ao_ 1: .1 sf)iiuk/rr st:,lrut sholh.nol (((jolt'" W000a/ 1%,vrr/t1ioo No. ?: I;lrrrrirol fnrrt'r orrn hr rr,rr/ fnr urouwr/ arli- Chapter 7 Fire Extinguishing Equipment ,vrlioo of Ill( slslr)t i%a rcirrrTt,/mover M,I),dl ix fnovidrd. " 7-1 Where Required. 7-3.1.2 Fixed pip( extinguishing sNswills in ;1 single 11az- ;n d ;u ca (wi, ,Sekho)r /-3)sh;tll be ;u Iim,,cd for sinlnliallcous 7-1.1 Approved fire cxtingti sli ng equipment ,h;ill be auionlalie oiler;u ion upon ;lduation of ant one of the "1s- prolided for the prolectiou of ,(cake renloxal devi(e" and enU. hoods. 1"MCI)Iino .Ao. L li hrrr lilt'/iarrl 1))/)(' is rur I',.xrrftlioo: If orrrftloblr to ilrr rrolliorih ha;-in�� jrnisdirlioo, flit, orlon oltr �fnnrrlrlrr s1:(/rrn. /tnrliotr n/rhr/i it'r��lin�oiihin��c1:ilvut (oft od b" llo, 7-I.1 tnaT be, ornillrrl wlrro all (oohm" rglofnnrrrl IN ic)vrl in I',.1rr[t000 No. 2. ;1 dry or writ rhrnri at'»,Irrn rant br rnrrl to li,iled ;tract, rXII(olo?N roldoiaiu , o (owlrorl or flit, o0nof d Ihrndrl rounnoo r.drrrrr(! dwhwwk b1, our of Ihr nrrlbod, sltrri/rrrl wale) sNNe r, onrl Norlr tail(( ct(frxr i( nftfnorvvl In r.v1tiigoiNh if io :A'FPA 17 rnul ,A'[PA 17.1 ill liar n/ mnilllooroa orrl000lir /it(, in 11)(YiNr rt'out,al dc,wc.v atol--boor/ emd dot"N ?10 whr)r,rl�l nfrrrrrlioo. o//rri flit, oftrrohon of rill /irr r:cliogrmhirrg ,;slrrn for Ihr (/If(/ nrrl rnokin" ryrri/uurol. 7-3.1.3 F11c operation of au1 (-vIingui,hmg "1strnl -11:111 '1111onnuie111\ -11111 off all solace" of flid Auld heat to ;tll 7-1.2 Duct :;vstems ;ltd wokiug cynipnlc11l (such ;1s deep e(lltipineut IU(luirill, Ill rne([loll 11v 111;11 eNlingni shin;~ fat Iticrs, I:u1gc". :,riddles, a11d hroilersl th;u 111;1v he it 1en1. .AIty gas appliau(c not re(Illiriny prolcclion hill source of ignuton of grease in the hood gIc;lw renlocal located under the sank ce11111ating cyuipnunt shall ;list) he device, or (111(1 ,11;111 he Ill ol('(Icd bN x1)1)1 1 extinguish shut 11 All shill(If mn de(iccs "11;111 he considered i tile"rill ing cytlipnlent. parts of the s\slcnl ;utd sh;Ill function (01111 the s\slenl oper- alion. I hi, cyllipincnl "11;111 be of the I1pc Ihat Ic lit ire, 7-2 Types of Equipment. ul;tnu;1I rc.setting pilot 10 Iilcl or po((er rc"toruion. 7-2.1 Firc cming11i"hing cyuipnu•nt "11;111 include holh 7-3.1.4 111( operation of anc extinguis11ing scslcul ;lppli- fixcd autonlali( fine cxlirtguishi11g -(stems ;nut portable hlc to 1111, st:nul;ud -1,111:11 any central fire cminguishcr". slalaul fire x1:11111 ctgn;tling "cr,,ulg 111( o(cup;un'c (c11crcin the cxtinguislling -(stem is Im;Iwd, ((11(11 s11(h 7-2.2 Fixed ;nnomaiic fire extinguish ;11;11 nI """Icnl is present. Poker to oper;ue the exIIIIiI,It by 7-2.1 shall he ci111cl- s\"lcnl shall be 11 mlilt wcd b\ a "uper(ism ;11a1 n1. 7-2.2.1 :Aulomalic lire extinguishing slstcnls spi:611(alll 7-4 Review and Certification. listed III the hazard installed in accordance Ncith the Iernts of their listing, the nrulufaciurer's instruction", and NITA 7-4.1 II ic(lim-cd, (onlplete dr;min,p of the ",,"1en1 in,t;tl- 1-1, standard/or Ilan, l:/rrrolrnl li.Vlio(' i.ihio,,r*,S1.Nlr)Ir�, or N14T A Luion including the hoo(I("), eAh;1u,1 do(1("), ;11111 ;lppli 17:A, Slan lard fnr I1'rl (;hrtniral I'AlMoli N11i11, .S)N/rnn, or allies. along kith the 1111erfa(c of the fire extinguishing 1991 Edition 96-12 rt'tu\AI OI SW)KI- �Nl) LAM 1� \.v'(na FllO\I cOMMl-rcIA COOKIM, tttt lr\IIy I Chapter 4 Grease Removal Devices in Hoods 1.Is, and li,ic(l low this tt.,c•. Uthci exlt;uist tan, lice Illi, u,c , shall he apprmcd li)r continuous ul)(-I tII mil. (Nrr Je(liurr 4-1 Grease Removal Devices. Listed ,icasc Idlers, hal- 3-8.) Both shall he install((A to contplc )With the li)Ilucyins Iles, ur other a1)1)1'0%'c(1 grcasc rcnnMII dc\ices fur use )\illt Icquircnu•nts: onuncrcial cookie, c(Ittipntcnl shall he prop i(Ic(l. Mcsh lifters shall not be use(l. 5-1.1 All %yit it,, an(I clem (r tl c(Iuipnlcnt ;hall con)ph )vlilt NFPA 70, Nwiowd Orrh'irnl Cwlr" (Ov) xr (:m/)Irr 0). 4-2 Installation. 4-2.1 The (list;m(c hetwccn the ,grease icmoval dc\'i(e 5-1.2 Means shall be pi-mlded fin itlsl)ectiotis. ,e rcicin . ;111(1 the•cookint, surface shall be as "I cM as pnssihle. Where ;11111 (lo.-miing. 111*casc rcn1M.11 dcs'iccs ;1rc used in conjunction )\lilt char- co;tl or charcoal-h pc broilers, ilidildin", has ur ciccu icallc 5-2 Airflow. hcued (11;11-broilers, a nlinilultn) vertical disuuuc of I It (1.2`' 111) shall he ntainutincd helcyccn the hmcr cd,'w 111 t11c 5-2.1 TIIC air yclucity thru11-11 any (111(1 shall br not Ica ki11rc;ase rcnu)v;II dc\iec and the soda((. ilimi 1.500 It ( 1;)7.2 111) per 111111. I:��rr�)liu)r ,A'o. l: l:)rrr�r rrurn;rtl rlrvrr� �rr�)r9hrrl „� lntrl //N/el horn/ h, ur,Irrll"d ur ur„,ulrnrr, ,Mh I/n 5-2.2 1-\11:itnt ;lit v(dunk., li,r hood, shall be ul ,ulli(i(nt lrnn� nl Ihr lr'lr)r” rrrrrl !/rr rrrrurrr/rnlrnrr turl)arlr„rr�- I(c< I lu pl�)cid( Ian (apnuc and lclllmal ut �r(ax-laden 1 i lm illan(( a(((I)rahlc Iu lilt \O I I( t I „111,1 111 111( 1„u.in,c „I lilt, t(Ito, n of i ;wlholll\ II:nu1,� Innsdirtuul, or hul11 ,Ir.dl Ire plo�id(cl. tppt.tl t\.,, lilt(I I((lu(,Iinq ilia (1(1(Ill)I I I nrtt h,tt linn (II,pLt�cd- ur built upon r((luc,t. rah rnukr)r gIIt/)rrrrn! i 1 11 rti)rr,�rrl IlNlIII l.crr�)Lrut: Lu;rr r h(Yrl rrr ;nlrurre Jurll hr to)rrurrll'II rhuu)� )ur-/Writ11 r,1 k I�� r nw III )rt inn: ir/I lln 1 err trr!/I t I I !u ,rI III rrrrrl ;rhr)r /.rrr r"� h1l)rn� ;,rrrr r,�wo;wl rlr,vr,,• Ihr rnnrnururr / �� I l rrrr/ rrrn„, r )1)rr 11111 )r r,lrnrl .u�nu Ir,un ruo/(ru �, rrrlrrrtl r shun rrur, h )r )u,. !u 11111 Ir�� llnnr n rrr. I l'2. l nuru rrrrrrL -1-2.2 (,it I,( :(mw.il d(-%I(c, ,ball 1w p1nic(Icd hmii onlhu,tion `t, Dull(I, and lion( di1((111.1111c inlpin,�(.1mlit 5-2.3 l load (xll:nnl Liu,) ,Ball (ontillm to „pcl:ur 111(1 of(uI i ink Ill in' noI IIIAT o 1(r;1uon 111 1(1okIII�4 aI)I)[i:i lot , Ili( (v1ill,u I'll ii,� ,\ [( ill h:n hc(11 a(utal((1, hill( „ Litt p1„du(in� Ili-4 II Ile( -,,1, IIII!I)(I.Ilul(,, ,udI .I, (1(1 I) Lu l ,ltuidolru 1, I(tluurd I,( ,I Ii,I(d (unlpo11(nl of Ili( tcuuLl 11 I, oI itp!i'�lu o1 ht,11 I)I(,i1(1, 1,,ILun;u1(I( 1 Moil( 1,) �,I(nI It Innv ,(,1(111 to h�, 111( d(,1�n ..I Ihc (�un�ul,llin� �It(I Ihr dl,I;u l(( hcl(\('('It the ti1(.uc rcnn,cal d('\I(( :Ind i, I)w rc(luircd to I(.tImt Ilt( hood (xlt;nul Ian cthcn Ih( w ;Ippliaocc Ile( outlet 111c;rt suurcc) is Ics, than 18 111. (Al in'”Ilishilli.� s stmt is a(tic:ucd if tltc cxhausi Fu1 and all 1.57.2 unul. I his piotc(lion nl:n be accontplisltc(I Im Ili(, (oukint, c(Iuipnlent u•rccd b\ Ilw fan had pre\iouslc been insla11:111un o1 ;1 ,iccl ur sl;unless steel balllc plat(. bcicvcc11 shut (1( it. Ilw h(:u sour(( mud th( qrc;lsc rcnlm ll device. Fhc ImflIc I)Iatc shall be su'izcd ;1nd Im-me 1 Iltal Manic" ur (onl6us- lion (�;ax, 5-3 Replacement Air. Rcl)Li(emcm must n;nc1 ;t dist;uur I]()[ lc,s 11);111 Iti in. air (Iuaultn s11;ill Iw I_,r.2 111111) hvu11 Ihc heat source to Ihc �re:uc rclllmad adc(Iuaic to prcycnt nc;;ati�'c pressures in Ihc conuncr(ial (()()kill,) ;uca(s) i'un rxcccdin; 0.02 in. )c;uc (ulun11l d(ci(c. llt(. shall h( not Icss Ilt:u1 i ill. (152. 1 111111) Iiunl Ihc (,rcasc Icnlov'al dcv'iccs. EA(rl)l it)It. Sir 11.vrr1)1itmv No,, I raid N,). ? to -1-?.I rrh(wr. 4-2.3 Filters shall he 1 it it,, ;Intl firmly held in I)LI u. Chapter 6 Auxiliary Equipment 4-2.4 Filter, shall be ;I(I, ;tnd rcntuc:lhl( li)r 6-1 Dampers. Dmiipers shall not he insi;111cd it, <xltauv rlc;ulin,1 ducts ur exhaust du(t s�'stcnts. 4-2.5 Filler, ,hall b( 111,1:111rd m an ;tonic nut Ies, Ih:ul 1:1 dc� ices fruit) the lturiiunl;'I. 1:.�rr�)liurr: IF/w)" q)rrilrrnllr 11NIol /ur vrcr/r rrrr w wilum", rrt �)nr( o/ a li,lyd rrr a�)�nu;vv(tb'�wr or�olrut. -1-`_.6 Filer, ,h;Ill he c(I1n1>I)((. %yith a dill) a;tc hcn(:Ilh Ilw hmcr cdgc of Ilw bli(r, I h( u:n ,hall b( kcpl to Ilt( lninilulun sin. nccdcd Iu ru11((i th( ICa,c and h( I)i[(hcd 6-2 Electrical Equipment. It) drain to ;111 cn(lo,cd ImI:ll (ont;tin(l ;I (.Ipa(ily not cx(ccdin;ti I gal 6-2.1 Whin" of :tm I\pc shall nni hc• in,Ia11(d in clu(Is. Chapter 5 Air ]Movement 6-2.2 \iulors, li(�ltt,, ;u1d other c•Iccirn;al do;uc, ,lt;Ill nut I)( installed iu ducts (,r hood, rrr locoed in Ilw I)alh of 5-1 Exhaust Fans for Commercial Cooking Equipment tr;I,cl of rxltausl prudu(Is. ,tew111111, Applmcd up-dis(hal c Lllls cvitlt nr()tors siliruundcd b\ the all vrcaul ,h;Ill he hin(gcd, supplied cvlilt Ilcxiblc y(;ult(rprool (.I((I11(al (ahl( ;old x rci(( hold-np(1I r(I;IiII_ 11 hr)r, rrr/r tow. 1991 Edition III t.1 til I I I \Iti 9fi I t F.A.I. zl F.A.I. I I — — — — — — I Horizontal-- Exhaust 10' 0" F.A.I. � °O / ch � o 0 I / F.A.I. Grade OwlExample: 1 \.I. is same plane as cxhausl or lossc r minium ul 10' bcncccn c lnscst cd c s 1 \.I.abnrc plane cdesh:nist: 10' + 0.23• per I degrcc hcicrcen ilusesl cdgcs Figure 3-8.3.: Exhaust termination distance from fresh air intake(F.A.1.). 1991 Edition 96-10 Rt:%IMAI-01 SMORH AND GRI:ASE-IADIA VAPORS I ROM (A)MMI- WIAf.Ct)Ok IN(I I QL I MIEN 1 3-7 Interior Installations. 3-8.2 Rooftop Terminations. 3-8.2.1 hoohop terminations shall b ;ts lullm%t : 3-7.1 In all buildings n)c,rc than unc store in height, and in unc-stow huildings %Nhcrc the roof m roof-ceiling still- 3-8.2.2 Willi a tnininlunl ol 10 It (3.0,) till of (Ic;n;lint• hlv is reymcd to h:Ivc it fire resistance stint;, Il)c (loots ftunl the outlet to a(lja(ent buildings, l)rul)(•rt\ lint,, anti shall be enclosed in a continuous enclosure extending boil) air intakes. Where space• lintiuttions absolutely prevent :1 the ceiling above the hood, through anv concealed spa(cs, 10-It (:i.05-m) lunirc,ntal sepimitiun hom an all intake, it to or ilu-ough the roof Soils to 11laintain the integrity of the Vertical separation Neill he acceptable Nyith the exhaust out- fire Sepauafiuns required by the applicable building cock let being at mminnuu of :i It (0.92 ill) above ally air intake provisions. The enclosure shall be sealed around the duct located Ncithi11 10 It (3.05 ill) horizontally. at the point of penetration at the ceiling and vented to file exterior of the building through weather protected open- 3-8.2.3 1%'till the exhaust flow directed up and :miv lion) ings. The enclosure shall an)fi)rn1 to the 1i)IIoNCing: the surface of the roof and a mininu1111 of .10 in. (1.02 111) above till. roof surface. 3-7.1.1 11 the building is Tess than -1 stories in height, the 3-8.2.4 With the ability to drain grease out of am traps or enclosure with shall have it fire resistance rating of not less to%v points formed in the fall or duct ne;u Nile termination than 1 hr. of the systc11n to it rainproof collection container or to it I emote grease imp. 3-7.1.2 if the buildin is .1 stories of more in height, the 3-8.2.5 \Pith it listed grease duct (omplving Nvith Section enclosure NN:dI shall have a lire resistance rating of not less 3-•1, or with ductwork (omplNing with Section ;i-5, ur than `? hr. 3-8.2.6 Willi a hinged-_up-dischargc firm supplied Ncith Ilexihle Nyeatherprouf ek•ctrical cable anti service hol(I-open 3-7.1.3 CICMAIRC ft'oml file ducrt to the interior surface Of retainer to permit proper inspection and cleaning and that enclosures of (ontbustible construction shall be not less is listed lot (o11umer6al cooking equipment, provided the than 18 in. (•157.2 111111), and cic:uan(c fto11t the (lu(t to the du(twork extends a minitmutn of IS in. (.157.2 null) above inlet ior surface ofcnclosures of noncombustible or limited- the fool S11rface, and the fan disch;u'ges a 11)i11immlin of comtbustiblC construction shall be not less than G ill. 40 ill. (1.02 111) above the fool surface (.err Srrtiult 5-1), or (152.1 111111). PIOViSlOI)S for reducing clearances as described iu 1-a.2 ;ml. 4i applicable to enclosures. 3-8.2.7 \With other apptovc•d imm, provided (a) 11 meets the ic(luirentcnts of ,'i-8.`.1 and Scclioll 5-1, ;111(1 (b) its dis- ch;urgc or its extended duct dischimge meets the require-,"k NOfF: Nonrunlbusnbic 11t,nt.riils such :s rc•inliuccd tun- meats 43-8.2.3. (Ser Se(lion 5-1.) crest. fluor. 0r protected steel beams. vv111(11 n,a\ pronudc 11(0 All cn(Iosurc and (:one rc(111(c(1 (Ic:u;uur• milt be 3-8.2.8 If exterior f',u1s arc located outside the roofline. ac(c•puabIv t0 Illc :uuhoriry ha%;rig jurisdiction it iht. inst'd- they shall be provided with sill(,access and work surface lilt- la(ion and ac(essihlhlN of Iltc duel sysunl :ml. (onsi(1crc•(I it)spe(tion ;lad (Ieanitg. adt.(luatc. 3-8.3 Wall Terminations. 3-7.2 For listed grease ducts, see Section 3-8.3.1 11',11 ierntinatiuns shall he as li,lkncs: 3-7.3 if openings in tilt cnclosurc Nulls arc provided, 3-8.32 fhrougll a masonry vy;Ill Nyith a tmiuitnunl of 1(1 It tbec shall he protected by approved self-closing lire doors 01.05 nt) of clearance front the outlet to adjacent buildings, of proper ratting. Scc NF1 A 80• Sit mlrurl (m For /)outs (old property lines, grade level, combustible consu�MIion. cIc(- u ICaI c<11u1)nlent or lines, :lad the close•sf pnuu of ;oily au' fImdotr%. intake at or beloNN the pkinc of the exhaust termination. -I be closest point of any ail intake above the plane of the 3-7.4 FtlLh duct SNstcml shall constitute an individual sys_ exhaust let minatiuu shall be ;t tnininlunl of 10 It (3.05 111) teml SL-161g unl cxbaust hoods on one 11001 distant, plus 0.25 It (0.07(1 111) per(-it(It one (I) degree from horizontal, the ;eagle of degree being measured hom the 3-8 Termination of Exhaust Svstem. (enter of the exhaust Ictininatium to the (enter 01 the air intake. (Sre F-im, 3-S.3.2.) 3-8.1 The exhaust Svstcm shall let tmin; is as follmvs: 3-8.3.3 With the exlenast Ifrnc (Ilre(tCd periendictlauk oulNyard lion) the %call fact or upward. 3-8.1.1 (huside the building NNith it fan or duct. 3-8.3.4 \Pith all the du(tNmrk pitched u, (train the ,feast back to the hood(s), or Ncith it drain provided to bring the NO'I L it is prcfirablt. for 117(. fan u, be aI or as (lust• t0 grease hack to ;( container' Nyithin the building or to it Ill• cod of lilt. (111(1 ;n possible• in or(Icr 10 n,inimiic illu rcnmolc grease I t1). atnotnit 01 pressuriit.d duct joins ;ntd (IC alums through NImit grease night Ieak more. easik. 3-8.3.5 \With ;t listed grease duct compling %%ill, Sec11011 3 I. or other ducts conaplviug with Section 3-5, or- 3-8.1.2 Through the• loot its to 3-8.2 of through it will as 3-8.3.6 11'ith an approved fan, proyide<I it ntects tilt It :i-8.:i. rc(luircnlents of:i-8'i.1 and Section 5-1. 1991 Edition 3-2 Clearance. openings rey mcd to reach access panels iu the ductwork shall be large enough to rcnuwe the access panel. 3-2.1 Clearance between ducts and combustible rnrtterials shall be provided in accordance with the requirements of- 3-4 Listed Grease Ducts. Listed grease ducts shall he 1-a.2. installed in accordance with tic terms of the listing mid the ntannfacun cI ,, [list u((ions. 3-2.2 For listed grease ducts, scc Section 3-I. 3.5 Other Grease Ducts. Other gica"c duce shall (()m- 3-3 Openings. plv kith the following rcyuircnunls. 3-3.1 Openings shall be provided at the sides or at the 3-5.1 Materials. Ducts shall be constructed of and sup- top of tic duct, whichever is more accessible, an(1 at ported b, carbon .steel not Icss than 0.051 in. (1.:)7 nun) changes of direction. (No. 16 MS(;) or stainless steel not Icss than 0.043 in. (1.09 nun) (No. 15 MSC) in thickness. 1',"N(('141011.- Porlion.c 0/ //1(' duel 1110 urr WCKr'wblr darn /hr (Inch rnlr� or di scholar. 3-5.2 Installation. 3-3.2 For listed hoods kith dampers in the cxiaust collar, 3-5.2.1 \II scants, joint", penclralions, :nut duct to hood an access panel for cleaning and inspection shall be pro- collar connections shall have it liquidlight (onturtlo11." vided in the (tact or tltc hood collar. 'I-his panel shall be external wcl(1. as close to the hood as possible but not to evicee(l IS in. (45%.2 mm). /;scrJ�linir :A'n. 1: Dnr! to hood r'nT1ur rornrrclion� a, Shnun in Furor✓ 3-52.1 N/m/1 hr jwruulirrl. 3-3.3 Exhaust fans with ductwork connected to hoth sides P-ve plioo rA'o. 2 Prnrhollone ,hull hr to be.srob'd b,• shall have access lit. cleaning and inspection within 3 It olhrr li.cIrrl dcvin,s 1hol are evaloat(,d wnlrrllhe mmir condiliotc o/ (().92 m) on each side of the fan. for've)ih a,Ihr hood or o0o'sorr of liclro (rro,r extmclnr,nod whom, not drh'ocl from the hood'% nr dtrN'f shnrhunl inlr�nih'. 3-3.4 Openings shall confinnrto the following: 3-3.4.1 On horizontal ducts at Icast one 20 in. x 20 in. (508 mill x 508 nun) opening shall be provided for per- sunncl cntrv. AVherc an opening of this size is not possible, m--j"1°by 1 sgna�e..eetanq,�la, openings large enough to permit thorough dealing shall -n9' Cr1Q o<,o��nd shape ga�ige as O.D.of dirt � \ be provided at 12-I[ (3.7-m) intervals. lie„,e"s _conhn_"s than I.D.of weld hood 3-3.4.2 In ho low rizontal sections, the locr c o edt� f tic n eWel d St yids or t,p11, h corner and max.4" opening shall be not lea that%.I in. (35.1 mm) from the bottom of the duct. 1 Jo m—th lsoo'F gated Weld Studs or 9ask Ct o:Sealant T,\\IM / Molts:.• steel 3-3.4.3 On vertical ductwork where pci sonncl eniry is n' De a l of sea e ' Hood ion possible, access shall be provided at the top of the v(•rtical "°°d loin, I iser to accommodate (ICS(C111. %%'here• p(.1sonncl enUv is not possible,adcyuate access Itir cicanin!; shall be provided oll each floor. Pm ,tit bull,. I iii. - 25 1 lion. Figure 3-5.21 3-3.4.4 Access panels shall he of the s:une material and thickness its the duct. Access panels shall 11a\c a gasket or 3-6 Exterior Installations. sealant that is rated lit 1:100°1. (S15.(i°(;) and ,hall be grcasetight. Fasteners ttscd to secure the ar<c"" panel", c 3-6.1 1Itt• poilion of ibe dII(Ivcork shall be vertl- sgmalill s.it s lolls, we ld sttds, lathes, o wing n111ts. be (al t\bc rc\cI poaiblc and "11:111 be nt"lallcd and Idcynatcly steel "t s shed and not ratc duel "Iijym l d on th t \Ic'rim of a building. et". :11111 other nu c bunt al I;ulcncrs shall not penetrate Iucl stall". (:Ic:uan(c of au, ccrticll or horizontal (111(1" to l:.rrr�dinn: 1.idrrl "It'aw clod WI('S+ doto(IN"r/llbbrN (orr",� /nrn- conihlt"Iiblc nlalcrial shall (onlpb with I-:'�.'_'. r10 Sho/I br IlWolled in nrrnrdame w/lh Ihr lrrun n/ Ihr li,lin� and lhr nalmll rhorl.� i o!lIll hoto. 3-6.2 All duels shall be prole(tcd on tic exiermr b, paint 3-3.4.5 Openings (i)I' installation, sc-aculg ;nil inspe(- or other sultilhle weather-protective co,Itntg or shall be lion of listed fir(. protection system device" and duct (lean- constru(ied of non(orrosive stainless steel. Ductwork sub- ing shall be provided in duels mid enclosures and shall jest to corrosion shall have• minimal (onta(t with the build- conin-nt to the reyuirements of 3-3.I an(1 a-7.3. l•:n(losurc• I g surf it(e. 1991 Edition 96-8 REMOVAL OF s.\lOhF.AND GREASE-I_\DVN \'APUKS I IMM Cu,MIERCIAI.COOKIMG FMAI'UFN I. E'x(el)hohr ,A'o. is Chwiamr l0 11111i1rrl-(ouhblobbir rnalrrial horn 2-1.3 Insulation niatcrials other tha11 ele(n-ical ittsulati()tt•,,, be, rrdarrd to zero rlraraa(e when 1)rolt'rled It 1, mrlrrl lath and shall I-Ve a flame spread rating of'25 or less when t(stc< ��Inslrr, r'rrrruri( lilt', elanrny lilt', or ollrrr norleourbuslib(r inwe inl in accordance with Teq fur surfarr Rarrriug Chahnrle'ri.qir:y of or ressrnrbll of nomornbrrctihle, nwlrrialc r ipploble,In the nalhorNV linileltno Rlrrlrrieds, UL 723. Adhcskcs or cements used in ten:liu� ]it ricdictiuu. the installation of insulating materials shall conlpl\' %:lilt tilt- F.trrl)ltotr ,Vo. -1: ,llalrmd,, curl ptodarl.c tlurl rnr lined fur the abuse re(luirt-11lcnts When tested %%'ith the spc(ifir insulat- lnopo,w of )rdllow' (It'arnorr•. Thew, rnrrlemel.s ,hnll hr oolalled ing utatcrial. is arrnrdawt, with the, (owlilious Ill /he livliug and the nmurrfar- tarrr's im/lItIlioa�. 2-2 Hood Size. floods shall be sized :uul conligure(1 to providc loo the (apture and rcnulsal of grease-ladcll NOI1.: Alit.i iwc(tion nlcthnde lot clot is u, rcdu(c (Ic;n- v;IpoIs (sir .n). :were arc to he applwd 111 111(• (u111hu.ub1c 111 linlitcd- - (u11lhustihlc (unsourtion :111(1 nW 111 the (Ill([. 'Ihc du(t shmild lio( hr \crapped dilcrtl\ \cilh ;un 11cucti.11, :u 111( 2-3 Exhaust Hood Assemblies with Litegrated Supply Air (lust t:ulnol di<sipac heat ho111 a fitc u\ 1111clldcd. In the Plenums. (:1st- of :1 s<\ctc lu( the duel nr.n 1:111. A duct 111;11 (unt:ul 11()1H111111111stildc Ilt—Is, nuclnn Vv.111,. .ind '111(1 11in1(((111- 2-3.1 1 b( (OOStru(tio11 :111(1 sit( ul ih(u• boocl. shill cunl- hrls(1h1( �11 it(uncs w .111111111,, but 11 111.1\ 11,11 1), 1,11 (iuu,t(I p1\ \\1111 1h( 1((1ui1( nu 111s ul Sc(lwo11 1-1 ;ind 2-'( \\1111 (hcsc In1 uuuc 111.111 '111 p(1((111 111 n, .u1Lnc ,u t-,1 l(c1 - - - (-11 In1c.11 I()(11 (d (1nrt.u1 Ic11,1ih, I-3.3 ll r((luircd hN the authority g l cun, 2-3.1.1 I he (u11so u(tion of (1,(. out(•t N11(.11 or tilt, inner eshatst shell shall (ompl\ with 2-I.2. II tilt, outer shell ix notili(ation in v,tilting s1c111 he gke11 of any alter;ttion, vcclde(l, the inner shelf sh;tll be of)Icasetight (ottsnu(tiott. rcpla(entcnt, or r(•lo(alion of :its c\haust or cxtinguishi1111 sstent or part thereof, OF (()()king cquipntettt. 2-3.1.2* \ lice-actuated d:unper sh;Ill he installed in tilt- supple air plcninn at ca(h point \d1crc a supple air dtI(I 1-3.4 Nothing in this standard is intended lo pre�cnt tilt- inlet ur a supple air outlet penetrates Ilw co11ti11uousk its(• of nu•thods 0) deices, prodded th;Il suffl(will let Ili- %\eldcd shell of the assentblN. file d;u11per .slt;tll be (()It (;[I dat:I is submitted to tilt- :uuhur6 haying jurisdictiul' Io si acted of at (cast the s;unc gage ;Is the shell. The actua- dc•ntonsDac that the proposed method or deice is e(luiN- 11()11 device shall h;tsr a 111;1x111111111 tcutperauur rating of alcnt in (lualin, strength, fire cndurancc, cllcctiscncss. `>S(3°F (1 11°C). Sttppl)' air plenums thaw discharge air from dur;lbilin, ;uul sttcts tO thaw prescribed b� this standard. their face rather tll;ut from the bottom or into the esh:test hood and that are Isolated from the exhaust hood by tiles, contituunlsI Melded shelf extending to the lower outer Chapter 2 Hoods most peritucter of the entire hood asscntbiv do not require a lire-a(DUted damper. Sec figure A-2-:3.1.`2 lot evtntples. 2-I Construction. 2-4 Listed Hood Assemblies. Listed flood assemblies 2-1.1 I'll(- baud or that portion of a primal.v (()flee.ti('It shall be installed in ac(ord;uuc with the terms of their list- 111ca11s dusigncd (itr (ulle(lin;g cooking vapors and residues ing :old the ntanulitcturer s ilist actions. shall be constru(ted of and he supported by sicel not less th;ut 0.0-1 ) in. (1.U3) 11uu) (No. IS yIS(t), Stainless .steel not Icss than 0.037 in. ((1.91 111111) (No. 20 (\ISG) 111 thickness, or of other approved nlatcri:tl of cyuis•alcnt sur11gth. 111,12, Chapter 3 Duct Systems and corrosion resistance. 3-1 General. I:.trr�rtnhn: l/oarlc or rurluwnrr'+ o/ listrv! �1rrrrsr r.�'hnrtor" n1, li e'd rudornali(danhpt'r nod hood a.v�crhnG/ir�c• r�1n/hhnlrrl undi'l ter 3-1.1 Ducts shall not pass Ihrough lit'(• tv;Ills or parti- V181C roudiliou, of lilt' crtlrri v as llhr hood or rut' male, o/ lrvIr'd Bons. f'rr2ct' rt'lrrt(lohs, shall be rousidele'd ac (ohrhJdeiu� wIvlh flit, uur/r- rial rnrd rouslrr(rliou rrquirrurruls of 2-1.1 hurl '-1.2. 3-1.2. :\II (lusts sh;tll le:ul, as (lirectls ;IS possible, to tilt- 2-1.2 :111 scants, Joints, and penetrations of the hood (•xtcror Of tic buildino. enclosure to its lower outer11utst perimeter 111;t dirr(is ;111(1 (aptnres grc;Ise-laden vapors and exhtntst ";Ises shall h;Ivc 3-1.3 Uuct s\stents sh;tli nut be interconnected kith alit. a Iiyuidtight continuous external %vt-ld. Intern;11 ImOd Other building srntilating or exhaust systent. Joints. scants, filter support fr;tnlu'. and ;Ippclldages atta(flud inside the hood need not be (\clded hilt sh;111 be 3-1.4 :AII ducts shall he installed (;ilhout forntin dip's or scaled or othcnVise 11lad(• gIcascti"lit. I traps that might (ollc(t residut-s. 1•..r(rl)ln)r No. 1: Pvll vlrnliort< shall be'limrhnillyd in hr wail-l b.1 otht'r fished devl(ev thal rrrr r-;vrllealyd urrdt,r to• vauu-eond/110r1,v of 3-1.5 :All interior suFfa(es of ducts shall ht- accessible liter Jhrr sr,lrrdy as the'hood or rnrlosurr of 1wed gvrnsr r.rlrnrluh:v rule! cleaning :Ind inspection purposes. Openings required liter wlhow, leyrare doryv not(it'll ail/Iwn thr hood'v ordhnl"v vhurlrunl ac(essibilm shall co11tpls kith Section J-3, ulv rill. (Sir rlrfiuition of ronliurvohcs eVI'runl uvr•ld in Sir- tine I-2.j 3-1.6 1 sign shall he placed un all access panels stating: [A(rlrlion ;A'o. 2: Sir to 2-l.1 abort'. V X:FS PANE:I.—D0 tiO Y OIiS"I KC(:I 1991 Edition (.I.AI RAI. !)ti- (a) Materials having a su-uctural base of noncombustible Thermal Recovery Unit. A dcyicc or series of devices material, with a surfacing not exceeding a thickness of whose purpose is to reclaim only the heat content of air, I/s in. (3.2 nun), which has it flame spread lining not vapors, gases, and/or fluids that were being expelled greater than 50. through file exhaust system ;111(1 to 11-anslC1. the thermal (b) Materials, in the form and thickness used, other than eiut,gy so reclaimed fu it location usclul purpose as described in (a), having neither it flame spread rating ntay he served. greater than `5 nor evidence of, continued progressive Trap. :A cup-like of l'-shaped configuration located o11 combustion and of such composition that surfaces that the inside ofa duct system component where liquids could would be exposed by cutting through the material on any accumulate. plarne would have neither a flame spread rating grcatcr than `25 nor evidence of continued progressive coin- Upright Broiler. 111 appliance used in the preparation bastion. of food by the expostur of the foods to intense radiant heat, and perhaps crnlycctivc heat as well, with the food or Liquidtight. Constructed and performing in such ;t the food and ra(liant soIlrce not being limited to a horizon- manner as not to permit the passage of ain liquid at any till mode. tentperature. Listed. Equipment or materials included in it list pub- 1-3 General Requirements. lished by an organisation acceprlble to the "authority hay- ing,lurisdiction" and concerned with product evaluation, 1-3.1 Cooking equipment used in processes producing that maintains periodic inspection of production of listed smoke or grease-laden vapors shall be equipped with an equipment or materials and whose listing states either that exhaust system complying with the follrncing: the equipment or material meets approprialc standards or (;t) A hood colnpl�ing N%ith the Icquircnunfs of Chaplet has been tested and found suitable fin- Ilse in a specifICd 2, and manner. (b) :A duct sv.stcnl complying N%ith the rquiremcnts of Chapter 3, and �'011�:: The means fi>r identil�ing lisu•(I equipnl(nt may r;u'v liar each org;u1ization concerned v6111 product eca111;1_ (c) Grease rcillmal deytces congrlying witll the regnnr- tion, some of which do not re•cognizc equipment as listccl ntcnts of Chaptcl '1, and unless it is also lahClc(l, "fhe'•authorin bilging juris(licfi(,n" (d) fire extinguishing equipment complying with the should utilize the system employed by the listing organiza- 1equit'cments of Ch;tptcr 7. tion to iduntih it listed product. Noncombustible Material. A nimcrial that, in the form 1-3.1.1 All solid htc•1 cooking equipment shall be served in which it is used and under the condition's ;utticipated, by hoods and duct systcnts that arc scp;uatc 1i'onl all other %%ill not ignite, burn, support conubtlstiolt, of release IlanI cooking exhaust systems. nlablc yapor.s when subjecte(I to fire or heat. Materials that ;nc icporlcd ;IS passing :ASTNI Fl:i6, Sluwbml 7"l,w ,llrlhod 1-3.1.2 MulTiplc tenancy application, shall rcgnnr file /irr lirhovinr u/ ;llnlrrinI its n I'rrtirol 711r Frorrnrr u! 750°C, cnnccrlcd cooperation of design, installation, operaaon, shall be consi(1cred noncontbnsliblc ni;ucriA.S. and nl;untcnance responsibilities In bout Tenants and the building o(cncr. Pitched. t o he fixed of set at ;1 desired angle or incli- nation. 1-3.2* Clearance. I lands, grc;lw cyII;I([rs, ;111(1 duels Removable. (.;1p;iblc,of hcing I I ni,flct I cd ti) ;moil •i <h;tll have a dean;ln(c of m (cast I S in. 1157.`_' Hurt) to cont- locuinn wiTh a limitc(1 ;tpplic;pion of OfmI and [,)(&S. hustiblc nr,uctial, :) in. 176.2 nun) to limited-(onib11Sn1)lc, Replacement Air. Air dclihcratcly bran, bl into the and 0 in. to noucowbosiiblc m;ltcriill. Scc figure•" showing structure, then spccific;11k to the \iriniIN of chiles ;1 cunt- cx;unplcs nt :Appcn(iix :A- buslion process or a nu(lial calls nr Ihe•rtnally fiurcd l:xrr/d ors .An. 1: Itlrr-rr Ihr luo(i, doO, o) www rxhnrlor is cxhausling device Io compensate lilt the v;gour and/or li�Irl /w b"Nrr rlrr lalof,(. gases being e(111Salllcd of expcI lc(I. 1;.err/liars ,Ao. ': Clrarrrnrr !n rourhtuhhlr rnulrrinl Ina l' br Salamander Broiler. (Sec Upright l;roilci.) It'dotrd it Ihr roorho(hblr oroL°rirrl i olreIt'll (1) lolloucc: Shall. Indicates it m;uxhtory icquncincin. Clearance to Single Hazard Area. Shall be as considcicd in thc• 7jpe of Protection Combustible Material applicable extinguishing system standard (so, Solioo 7-2) a OF s delel'n111ICd by tile a e uthority' hayin g I tn'isdiction. (a) 0.013-io. (11.33-rmn) y ill. (228.6 runs) (2,1',;�r�r) shut mrin! c/sorrel Solid Cooking Fuel. Any solid, 0111;1I c consum;iblc nrrl l io. (25.4 Harr) on fuel such as briquettes, nusquitc, hill-dwood, or charcoal. rrnrrranrboylihlr sprrerr:(. Solvent. A substance (usually liquid) capable of dissoly- (b) 0.027-in. (0.6(8-i n i) 3 ill. (70.2 runs) ing or dispersing;mother substance. A chemical compound (22, o,"r)slwel melt/ on designed and used lit- the purpose of converting solidified 1-in. (25.4-non) informs/ (;],case into a liquid or semi-liquid state to facilitate a clean- wool bats rriulomrrl milli 111* u�cra n tio . wire' snub or rqu ianlrrrl f l �/turd out I in. (25.4 non) Termination. The concluding or intentional ending on rrnire'n»rbloliblr portion of it duct system that is designed and functions to Scc Figures A-I-:S.2(c) and (1) in Appendix ;A lilt examples of fulfill the obligations of the system in a .satisfactory manner. cle;uance reduction "stems. 1991 Edition —00 pill 96-6 REMOVAL(it-SMOK AND CREASK 1—kDEN VAPORS FROM CUyl:MERCIAL COOK IN(i EQ(APMEN I ;i (:tbric;uio11 tccltniclue list joining Inclals he he;uing the Grease Extractors. A SysIcni of compnu•nts designed VMMk niatc•rials to the point that tile•\, inch and fluty togcthel lot and intended to process %apors, gases, i11ul!or air ;n it forming an uninterrupted surface of no less sn-e•ngth than is dFIWII through such deyiu•s by c011ecl111g the airborne the original materials. greas(- particles and concentrating thein for limther action Damper. A valve of plate �%ithin it duct or its I(-rnlinal at sonic• future trot(., leaving the exiting air %6111 it lower components for controlling draft or the flocv of gases, amount of conibtistibie 111;uter. inducting air. Grease Filter. A coniponcnt of the grease capon Detection Devices. FluCti-ical, pncunutiic, thC-111;11, removal sysic11i that dcfiC(IS the air and Sapors passing nic(hanical, of optical sensing instruments or subcoinpo- through it in it manner that Causes the grease Sapor con- nents of Stith instruments whose purpose is to cause itii Cenuation and/or condensation lilt- the purpose of CuIICC- automiatic action upon the occurt-euce of sonic presCICCted tion, Ieilying the exiting air v%IIb a lower aniotnu of coni- eveut. In the couicxt of this documtent, the event in (lucs_ bustible muter. Lion Could be exccssiyc teniperaune or Ilanu•, and the Grease Removal Devices. Other comiponctits of the action could be ill(- operation of* it fire extinguishing gi-case and vapor rcnuiyal system that do not fit the dclini- systeni. lion of '•grease extractors". or •'grease liltcrs" yet arc Dips. Depression or cup-like places in horizontal duct designed, installed, ;111(1 perfiirni by removing vapor sos- runs in wilidi liquids could actuniulate. pencicd grease particles from the exhiuut air/vapor streams or arc designed to assist other dCViCCS in the VCiuocal of Discharge. �l�hc final portion of a duct or pipe �s�beic ch vapors or p;utideS. the product being conyeced is etiiptied or released fI0III su a conline.ment; the 1e1-111imlllon point of the pipe or duct. Greasetight. Constructed and pcifoinmig in such it Ducts (or Duct System). :\ continuous passage a) for nlanuct- its not to permit the• passage of any grease tinder the transmission of air and vapors that, iu addition to the not Illill cooking conditions. cont;linnu nt cot11poncnts Ihcnisckes, ni;n include duct lit- High Broiler. (Sec l Aright Broiler.) Iings, datiipers. plenums, and!or other items or all h;oi- (lliog c(luipmi(-11t. High Limit Control. I'm purposes of this dorunicnt, Easily Accessible. \\'ilbin conililriahlc rr;uli citb lint_ ;ill operui11g dcyice iustaflcd iu and scrying its ill) integral ited (Icpcodc11l c on 111cch;ow;1I dcyiccs, cmcnsionS, nr coniponcnt of a (ICCI) Gu fi ycr. Its purpox is the secondary IIIIIII;I1I1111 of wilipci ill ill allm%cd hV Ill(-cooking n operao11 assistance. ;yid, should Ib;u icniperattnc he exceeded, the automatic Fire Partition. .\n interior \dill or p;miilion of it build- MICIAuplion of the thermal energy input. ing Ibat scparucs I\\o :11e;1s mid scrccs io restrict the spread of lire e(-t does nol (Iti;tlil\ as ;1 fire icall. Hood. :A (ICyitc prodded lilt a cooking ;lppliance(s) to (IIl cct and capture grease-latch vapors itild exhaust gases. Fire Resistance Rating. 1 rclatiyc icrni, usualb with ;t It sh;tll be ronstrncted to withst;tiul a(bc•rsc conditions. It uunuric;ll rating or nuxlilying adIC( I c to indicate the_ niin be located over most or all of the cooking appli;uice(s), extent to which ;1 ni;uerial or structure resists the eilccts of or It 111,1v he a fixed device located in close proximiiIN to a fire, e.g., „fire icsisia (c of `? hr as measured oil the Stan- cooking appfiancc(s). (.S(,t, 1-3.1.) lord Timc-TeIIIpcnuurc Curyc. Interconnected. Mutually assembled to another comi- Fir e Wall. :1 X;111 baying a lire resistance ratio;; of not patient in such a nruuier that the operation of one directly less than '1 11, wliicb separates huil<lings, restricts the afliru the other or that 111e Contents of one specilic duel spread of fire, is constructed of noncombtistiblc or li11iite•d- cumhuslible materials, and extends cont ill uousb front the S�'ste11i ;Ile AIMNed to Cncotuit(-r of contact the products finuul;uion tbromgh Al stories, to or above tic room. being nloyed h� anotbet- duct s�steni. Fume Incinerators. Dcyic'cs utilizing intcusc hc;u oI Labeled. 1•aluipnn•11t oI mr.ucrials lo which bas kern fit(- to break down and/or oxidize vapors ;111(.1 odors coo- ;tnached ;1 label, sly mhol or other identilaing nun k of ;in twined io g;ue s ur air being cxhausicd into the•:ltiuospllcre. organization ;1CCCpulble to the •'aulhority baying lurisdic- tio11" and concct-ncd with product cyaluatiou, tial niam- Fusible Link. A }i,rui of lixed ieniperalure beat detect- rains periodic inspection of production of labeled eytiip- ing device sonictinics employed to restF;lin the operation of nu•nt or nlatcri;lls and b\ whose labeling the nm III&I(turer an cleclri(ill or mechanical control until its d(-si,gmecl tens- indic;ues touipli;inc(- with appropri:ue scuul;uzis or perfiir- pentitirC is 11eumc in it specified manner. iug (.itch ;talon. Liinited-Combustible.* As applied Io a building coit- Grease. Kcndci cd ;mimitl fat, %cgculblc ,Iioi((,,, g, sic uctinn ni:ucrial. ;i material, nuI complying with the dcl- and other such oif% 11cuter used tilt- the purposes of an(1 ninon of nonconihustihle niaierial, that, iu Ibe liirni in resulting lronl cooking and/or pl-cimling foods. (:tease wiicll it is used, bits it potential beat (.aloe not exceeding niay he liberated laid (.nir;limcd tNith exhaust :tit-.or niay he ;i500 11111 per Ib (81-I1 kj/kg) (sec AI-TA 2-9, St(m and 7r,si visible as it liquid or solid. .11r•lkod fur Nolr'i h(d 111w/ u/ Ntti(dmg Maleo(ds) and coin >l lics Grease Ducts. .A containute•nt system lilt ihc• ir;mspor- kith one of the• following Imlilgraphs (it) or (b). Matcii;lls Cation of;tit- and gre;isc y;ipors, desigocd and installed to "object to iucreasc in co11ibustibility or flame spread rating rcdticc the possibility of the accumulation of Comibustiblc• beyond the limits IICFCln Cstablishcd through the Cllcits of condensation and tilt• oCCUtrenee of damage should :1 fir(, age, moisture, or other atmospheric condition shall be con- occur wilhill the .SCsiclil. sidcrcd conihustible. 1991 Edition GF;NF:RA1. 96-5 W NFPA 96 ccalu:uions ts'hi(h is in a position to tictct-minc (ontplian(c tcilh approptiaic standar(k fog the (uncut production of Standard for the Installation of Equipment for the listed items. Appurtenance. An acccsson or subordinate part that enables the prim;u-v de\'i(c to perfinnr or improvc it Removal of intended function. Authority- Having jurisdiction. I he ';luihorm hating Smoke and Grease-Laden Vapors jurisdi(uon" is the orgauizauon, OIli(e or ill ofIv.i(lual ICSpousiblc fin "approving" c(I uipnucIt, an installation or a from Commercial Cooking Equipment I)lo(e(Itlre. \01F: Tic phrase";nohorils li;ning lilt isdiction" is us(d 1991 Edition in NFPA documents in a broad inannci III((. fill and "approsaF' agencies c;u's as do their r(sponsibiliii(s. \Where public safi•o is p]tonal 111c "authorits pacing lilt is- NOI ICI:: An asierisk (*) lollotrittg Ili(- number or Icner diction" nun be a Icdcral, state, local or other t(gioual designating a paragraph indi(atcs nrucri;tl oil dcparunc•nt or in(hyidual such as a lire chicl. lire tn;nsbal. that paragraph in Appendix A. (hicf of a fire prccention bureau. Tabor dcparuncni, health (Icparttncni. building; olll(ial, cic(lmal inspc(un, or other, Infinncuion on rclircn(cd publi(ations (;ill be (hand in hasirng si;uutor\ au1 hot 6. For insuramc purposes, ;nt Chapic' 10. insuren(c inspc(lion (Icp:utn(cnt. r;oing b(irc.tit, or oihcr insurance (ontp;un rcprescnuui\c nl;n be Ill( '•;nuhoriit hating fill isdiciion." In m;utc (ir(umsnur(cs th(• prop(•ric Chapter I General oNcncr or his dcsignau•d agcni ;(ss(intcs the r((I, of the "anthoruc harm!poisdi(lint(":;it gmct(uncnt tnst;ill;tuons, he commandin (.Mite o dcp;n tucnl;d oll(I'll 111,1\ be the g 1-1* Scope. [ his edition of NFPA 96 (occIs basic "authorin haNingInrixlatiou." h rc(luircmcnts fitr the dc"Igil, installation, and use of Automatic. Operating bv its otsn nrr(h;ntisut ahcn cxltaust sstrnt cumpoucnts in(lu(liug I l) hoods; ('?) } rc;uc° a(tu;ucd bs sonu• intp(rsonal infhtcn(c, such as;t change in rcnutsal dc\i((.S; I:)) cxhau.st (luck; (,I) dantpcts; (5) all (uncut, Strength, pressure. Icntpcnuurc, or mc(hani(al ntov'ili, dcvl((.S; (1i) eyttipment: and (7) lire extin- (onfignration. guishI , c(luipnicnt lilt dte exhaust ss,tcnt and the cook- ing cylipntcnt used Ihcrctcith in (onnncr(i;tl, indu.suial, Baffle Plate. An object pla(c(I in or near :nt ;tppli;m(c institutional, mid similar cooking applications. I Itis star to ( 1,111"c the direction of or In tclard the (tote ol air. ;tir- d;nd does not :tpplN to installations lot normal residcnti;tl litcl nrixtures, or Iluc gasc,. faIIIIIN use. Clearly- Identified. Ciipablc oI Icing recogniicd bs it person of normal t'ision scithont causing tuurrtailm and 1-2 Definitions. indc(isiccncss ;ts to the lo(aliou or operating process of ill(, ilenl in yucslion. Air Intakes. An opening in it btlildiug's cmclopc schosc purpose is to allow outside air to tic dlimll into the Combustible Material. Nl;ticiial subject to tn(rcase nt sun(Inre to replace inside air renu>se(I bs exhaust ssstetns (onlbuslibiliIN or flame spread rating becond the limits or to impro\�c the (lualitt' of the inside air bi' providlttg a cStablishcd in Ibe definition of limited-(onrbustiblc. source of air h:ts.ing it lm cr conccniration of odors, sus- Concealed Spaces. That portion(,,) of it building pended particles, or healing content. behind tcalLs, os'cr suspended ceilings, in pipe chases, Air Pollution Control Devices. I•: ittipntcnt ;md des'ices attics, mid clsetchere tchose site m:n nornr;Ilk rang(. lions used lot the purpose of dcaning air passing through or I 1', l-in. (l 1.la-ntm) .stud-spaces ut 8-11 (2.1 1-in) lilt erstIti;tl spent in such ;t nt;untcr as to rrducc or rcnntsc the intptt truss Sp;t(es ;utd possible containing contbustiblc materials ritic.b contained thcrIIcI such ;ts building Su It Ill nu•ntbcrs, thctm;ll and/or cicc it i(;II insul;ilion. :uid du(ting. .Smh .spaces ha\c sontclintcs Appliance Flue Outlet. The opening of opcnings in it been nscd as f IVAC plenum ch;unbcrs. cooking dcvice where %-apors and-or combustion gases leave the cooking dcsice. I here ntas' or nrt\ not be dart_ Continuous Enclosure. 1 rc(o�ntied ;uchite(tural or NMI'k ;utached to this opening. ntechani(:tl (onrponent of the building ha\ntg the Iirc reststan(c Imilit; as rcyuncd fire the suucturc and tchosc Approved. A(ccpt.tble to the "authority h;n'ing itIIi.S- purpose is to enclose the ,,';spot mnu,s;tl duct and consc\ diction.' drag duel to it.s ICtlnill;Itlolr point out,ide the stru(IUrc N0I IT -I'll(, National l ire Prw((Iion A,so(i;ition doe-, not ilhoul b;n'iug :nt\ portion possessing :t Iirc resistance r;tt- approcc, insp(('t or ((rill\ ;inc instaliuions, pro(cdolcs, ing Icss III;tn Ih( rr(itirccl N;tluc. c(Iuipnwnt, or nr,Ucrials nor does it appro\'c or (.caltlalc Continuous External Weld. \ ntct;tl joining ntcihod lcsling laboratories. In dcicrntining tic a((cpiabiliis of ts'ithout interruption as related Io sisihilils' and (lualitc, installations ur pro(c(lures, c(luipntcnt oI ntatcrial,, IIt( lo(;ued nn the outside of the stn f,ICC•s that (ill c( courant authority h;n'ing fill isdi(tion mac base a((cpt;urxe on (ont- u plian(c with \Ii':1 or oiler apprnpri:uc scuul:nds. In tic andror consec th( grease laden vapors of the cooking pro- absen(c of sn(It st:ntdards, s;tid ;uohoruJ nt;n tcyun( ('\I- (css(cs). Tor the purpose of the do, intlton, a spc(ili(allN dcn(e of proper installation, fit o(cdurc or us(. I be author- includes the cXimt]"t (ontparinn•nI of hoods and %s(.Idcd it. lacing Iurisdi(tion nmc also rcicr to ibc listing,or Lab(I- Ioinls of exbausl du(Is, NO speci(icall does not include fil- ing pra(ti(cs of ;Ili orgallu..auon concerned n'iilt produ(I to sttpporl lianics ol in"idc hoods. Wilding is 1991 Edition 96-•1 RI M()%�At.or S.Mu,hr:AND(;rt-::\st:-I-ADI_N VAP()RS rRtnt curtyn%Iv(:1 v.cookIv(I t()( IP%II N t Contents > Chapter I General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 5 1-1 S(ope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 5 1-2 Drlinitiotls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 5 1-3 General Requitcmcnts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 7 Chapter 2 Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- S 2-1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 8 2-2 flood Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 8 2-;i Exhaust Ifood Assemblies frith Intcgrated Supple :Air 1'lenttnts . . . . . . . 96- 8 2-1 Listed flood Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 8 Chapter 3 Duct Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- S 3-1 Gcncral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- ti 3-2 Cleata l— . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- ) 3-3 Opcnittgs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- c) :i--I Listed (cease Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 9 :1-5 Other (;tease Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 9 :i-G I•:ztcriot Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96- 9 3-7 Intc•tior Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-10 a-8 'Ictnli11mion of Fxhaust S\stcnl . . . . . . . . . . . . . . . . . . . . . . . . . . 96-10 Chapter 4 Grease Removal Devices in Hoods . . . . . . . . . . . . . . . . . . . . . . 96-12 -1-1 Grease 12e1noV;t1 1)( ices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 1-2 lwottllation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 Chapter 5 Air Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 5-I Fxhaust Fans fitr Commctcial Cooking; l•:clnipmmilt . . . . . . . . . . . . . . 96-12 • --' :\irilot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 5-3 l:c placcnu nt All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 Chapter 6 Auxiliary Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 (�-I D;urlpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-12 6-2 facctrical f:cluipntcnt . . . . . . . . . . . . . . . . . 96-12 6-3 Othee f:cluipnu•nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-I:; Chapter 7 Fire Extinguishing Equipment . . . . . . . . . . . . . 96-13 7-I \\•here l:eeluirccl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-1:) 1-2 f\pcs of I•:cluipntent . . . . . . . . . . . . . . . . . . . . . . . 96-I:; 7-:i Operatin I:ecluircntcnu . . . . . . . . . 96-13 7-I Kc ict ;utcl (:c rtihc,uion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-13 7-5 I'mi;ihic FirC . . . . . . . . . . . . . . 96-11 Chapter 8 Procedures for the Use and Maintenance of Equipment . . . . . . 96-1 1 5-I Operuin 1'roccclntcs . . . . . . . . . . . . . . . . . . . . . 96-1 1 8-2 fltspection . . . . . . . . . . . . . . . . . . . . . . . . . . 96-11 ti 3 (:Icanint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-1 1 Chapter 9 Minimum Safety Requirements for Cooking Equipment . . . . . . . 96-15 9-1 Cookie} l•:cluipntcni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-15 9-2 Operatinw Controls . . . . . . . . . . . . . . . . . . . . . . . 96-17, Chapter 10 Referenced Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-15 Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96-I:t Index . Aw, 1991 Edition CUMI\tl 1-1 I.t. I'I.Intl\\I.I. 96 Technical Committee on Venting Systems for Cooking Appliances James N. Macdonald, Chaff umi I rnrlct, In,uramc Co. Thomas J. Hard, .A'r(mlurr 1. 1. l fat(I ( ,1111).111X, IRcp. Phil Ackland, Conuucr(ml V'clli Clc;nting ( o. Jayendra S. Parikh, I nd(r%.ritcr, I-dwiato- Lid. ric, In(. Laurence W. Caraway,Jr., kitchen k1c;nt Inc. Ilarr) Schildkraut, Cini-I.iulc Inicrn:uional. (Rcp. IRh:(::\) Inc. Dennis N. Gage, ISO) Conuncr(ial Risk Sci- Rcp. H( .Sl \i(cs. Inc. Joseph F. Schulz, \'an-I'arkcr I'rodu t,. In1. Edson C. Gaylord, Gaylord Indostrics, In(. Rc•1). :ASIII\AL Rcl). N:AFEM Charles W. Shaw, S &- S Fire Lquipmcnt Joseph N. Knapp, NI(Donald, Corp. Lawrence E. Stahl, Il;odcc, Food .S\,tcni,. John.P.Langmead, Gas Appli;incc Nlli,.Assoc. Inc. Donald T. Mann, :Aetna Lilc A Casualtx Rcp. N'R:A Rcp. AISG Lco Stambaugh, Fc\a, L tilitic, t'.Ic(n i( Co. Gary A. Nadolny, .Annul Firc Protection Rcp. I•:I,I•,I Rcp. FC•N1A Allen C. Weidman, :Amcrictn (:a, :ANs o(i,mou Alternates Donald J. Begley, :Atulcrscn Firc F(Impmcnt Michael J. Laderoute, :ASCO:A Firc Sy,tcni, t►. Co., In(, Rcp. Fl:N1A (:Ahcrnatc to l. (. 11;11(1) (:Altcr n;uc to G. :A. Nadolim Michael L. Jorgenson, L ndcn,ritcrs Lahora- Roy Leonard, S(icntih( I ire I'rc\cimmi Co. logic, In(. (:Alicro;uc to L. A\. Cur;n)acl (:Alternate ut ). S. 1';nikh) Philip O. Morton, G;nlord Indusn'ic,. III(. Richard Kukla, Rolm Rippe S' :Aso(i;uc, (:Alicrn;uc to L:. C. Gaclor(1) Rcp. hCSI Dan Redd, Soodmcstcrn Publi( Scni(c Co. (:Alternate to 11. S(hildkraut) ILcp. FF I (AIWIII;uc u) L_ "tallil {ugh) Richard Ortisi-Best, NH)A Su111 liaison /11,lnl wl'n nrn1,Il'r 161 Inn..0",C U" II116drd nu Ihr hal n)Il-nliNn u. Auer Ih,l lnu..,rhrm('r� in Ihr uwy haz nr "')"t No 1 1%: Mcmlwi,hil,wt a Cnnuniui c ,11;111 wd in .uul nl ii,,It (nn,tinni•:ni cu)lur,cnu ns nt thr A'—,in- tion nr anc 11o(unt)•ni tlt•cclnp(�I h� the(�.�unmiucc un )r11ii 11 th��incntlicr,i•rcc,. 1991 Edition 96-2 ittMOVAt uF SNfoKh AM) \rcllts rtt(1M (]O.\IVFRCfAt.COOK I\(: ttot f Origin and Development of' NFPA 96 I he suhjc(_i of the vcntiLtion of Icst;unant-tvpc (()()kill, c(Iuil(n(cni cva, fir,t (on,id- crcd he the NFPA Conunitfce un Blow(.1 ;ur(1 I•:xhau,t Scstcnts. That Conuuittce (1(.\cl- opcd m;tcrial on vcntilafiou of resuunaut-tvpc cookie" c(Iuipntcnt to he in(ludcd in NFP A(H,S1nud(m Qorlhr l((�Inllulinn nj lilu�rrrn(ul li.�Ar(rr�el.1'talrur���,� l)n,�l, allot!;, mul I(II)o( Rrounpul or (:opwryiw'. This vv'as adopted by the .\SSO(lallUlt in ING. Revision, to file applicable section were ;u1opted in 1947 and 19-19. When the NFPA Committee oil Chinulevs and Heating Fquil>nu•nt vcats or-:nfiu•d in 1955, file material on ventilation of restaurant (ookiug c(Iuipincnt in NITA 91 �vis assi'mcd to this ne•Xc Conrtnirice \\'ith the suggestion that it he revise(I and puhli,hrd ;i, a selruatc stan(la d. Thus, in recent \'cars this stand;u(f has been published as NITA 96). Previous editions of the stuuulard prcpilred bv the Conunittce on Chin1ncl's and I Ica 1111, F(Iuil)tnent Xcerc adop1cd by the Association in 1961, NCO, 1969, 1970, 1971, 197;;, 1976, 1975, 1980. and 198.1. The Corrclatin;;Conuuittee on (:hinu)(•vs and Other I le;tt and Wapol Removal Equip- ntcnt leas dis(hargcd by the Standards Council in 1986. The TC(IIni(al Cotnntittce that prel.rucd the 1957 edition bc(atnc known as the TC(hni(A Couunincc on Wonting Sv',- fctn lie' Cooking Appli;uucs. In the 1991 edition, deaeut(e reyuirenlenis to combustible material ;u-c re\'i,ed and cxl�;titdcd, including appcndix showing cx;unl>Ics. A ucw definition lilt lintitcd- (onth(rstible i.s added to tits standard, and aft appelidix table is included to show typical (onst I'm tion ;uscntblics. Ch;(picrs :)) and I arc utt;tlly revised. k 1991 Edition 96- 1 (.OI)%iight (, 1'991 NI,PA, .AII Rights Rcsci%ud NFPA 96 Standard for the Installation of Equipment for the Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment 1991 Edition F11is c•(lition of NFP:A 96. Sloodo)d /or Ihr 111NI(Ilahol! o/ Equilmu')Il for /hr Reloor(l o/ SmAr owl I'al)m) /tom (:o»onr)riol Cookmg PIptilow,t 1. (c;1s prcparcd 11N 111c Fcchnical Connnincc on A'('111111" SvSlenl.'s lin- Cooking Appli:uurs x11(1 actcd on Its Ilt(-- N:itirtn;tl Firc Protcclion :Association. Inc. at its Fall Mcctiitg, hcld No%cnt11cr 12-1-1, 1991) in Nlianti, FL. 11 \cas issucd by lltc .`;t;uular(l.s Cotnuil ou j;u11im V 1 1, 1991, (('ills ;tn cfli•c- mc• (laic of Fchruan S, 1991' '111(l supc•rsc(Ics all c(litions. 111c 1991 c(Iili(m of this (locuntcnt It;is been approvcd I)N the :American National Slamlar(Is Instiltuc. (:hanks wlicr than c(Iitori;tl ;trc in(Iicatc(I b% ;t \criical rul(• in t11c ntar"in of t11c Im—cs ou Mliclt 111cv ;tppcar. I hcsc lines ;ur includcd ;1s an ;1i(1 to 111c ttscr in idcniikin:g dlmlocs li-ont the prc\ioos ('Oikon. Notice F(tllo(rin� issuance (d ill s 1991 c(Iilion (d NITA 911, Slrnr(/(/)d Ito Ihr Rrintwrl of i .Solo);(' rnol (1 wow-Loden I opo), /rorrr Comar)(m/ Coobltg- l:rjoilmirol, 11v 111c NFP:A Su1n(lar(Is Conn(il, an ;lppcal (%;1s Bled (dill the M PA Pwlr(I of Dill(Inl s. I11c ;(ppc;il 1c(Iucsts 111;11 11ety Fmrplion No. `_' 10 1-2.11 Ise dclulc(1 Irons 111e a;in<I;ir(I. 111(. I'mcplion ;111(m, i11e mininnlnt ( ('11(';11 (lisi;ln(c h(1(Nccn 111c 1e,rsc rcinocal dcci(c;uu1 111(' 10 1)e l(Amcd 10 n((i Ics, 111,111 it in. I I.,". I 111111) lily (nokin(g c(Iuipnlcnl miliout cspn,e(I H.1111e ;oul teller(- Ilm ";tsc> 11tp;)ss i �rcax rcnu,t;11 (Ict ices. NIT\ (Gill ;11tno11ncc 111c (li>jmsition of 111(' ;1ppc;il ((hen it 11;1s Ixrn (Icicrnlinc(l. �I \ntnnc o1 111e ;1ppc;11 shwild oolilc in (rrililw t11c Sccrcl;ll\. .tit;u1(l;u<Is (:oun( il. A I PA. I 1,;111('11 n1,u c11 P;u k, P.O. lios 91111. (.11)111('(', MA 0221111-9101. --- — WN '11 NOTICE All questions or other communications relating to this document should be sent only to NFPA Head- quarters, addressed to the attention of the Committee responsible for the document. 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Y I\I.9Y ANSI/NFPA 96 An American National Standard February 8, 1991 NFPA 9 6 Va _ from Cooking E aumment f 1 Edition a : - NFPA® National Fire Protection Association 1 Batt erymarch Park, PO Box 9101, Quincy, MA 02269.9101 - f 5.3 (7.4) If insulating material other than electrical insulation is pro- vided within an enclosure, consideration is to be given to the burning characteristics and combustibility of the material, and the proximity of an ignition source. 12.3 (15.4) Wiring shall be enclosed in metal-clad cable, conduit, elec- trical metallic tubing, or metal raceways, control boxes, or the equiva- lent. Fittings shall comply with the Standard for Electrical Outlet Boxes and Fittings, UL 514. l 4 � � t fs i December 21, 1990 STANDARD FOR EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT UL 710, FOURTH EDITION THE REQUIREMENTS SHOWN BELOW ARE THE CURRENT RE- QUIREMENTS THAT HAVE BEEN SUPERSEDED BY REQUIRE- MENTS IN THIS EDITION. THE NUMBERS IN PARENTHESES REFER TO THE NEW REQUIREMENTS WITH FUTURE EFFEC- TIVE DATES THAT HAVE SUPERSEDED THESE REQUIREMENTS. TO RETAIN THE CURRENT REQUIRE- MENTS, DO NOT DISCARD THE FOLLOWING REQUIREMENTS UNTIL THE FUTURE EFFECTIVE DATES ARE REACHED. 4.2 (6.3) With reference to paragraph 4.1 an opening in an enclosure is not acceptable if a rod of the diameter specified in Table 4.1 can enter the opening. TABLE 4.1 (6.1) DIAMETER OF ROD FOR EVALUATING OPENINGS Distance from the exterior face of an opening to a moving part Diameter of rod 1/2 inch(12.7 mm)or less Equivalent to the distance measured from a straight edge placed across the exte- rior face of the opening to be chocked to the nearest mov- ing part More than 1/2 inch(12.7 mm), 33/64 inch(13.1 mm) but not more than 2 inches (50.8 mm) More than 2 inches(50.8 mm), 41/64 inch(16.3 mm) but not more than 4 inches (102 mm) More than 4 inches(102 mm), 49/64 inch(19.4 mm)if the but not more than 6 inches area of the opening is not (152 mm) more than 3 square inches (19.4 cm) More than 6 inches(152 mm) 1 inch(25.4 mm);except that If the area of the opening is not more than 6 square `�— Inches(38.7 cm2),the diame- ter of the rod shall be 2 Inches(50.8 mm) A2 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990•, APPENDIX A (Cont'd) awl Standards for Components a Standards under which components of the products covered by this stan- dard are judged include the following: .Title of Standard — UL Standard Designation Switches, Clock-Operated — UL 917 Switches, Snap, General-Use — UL 20 Switches, Special-Use — UL 1054 Systems of Insulating Materials — General — UL 1446 Tape, Insulating — UL 510 Temperature-Indicating and -Regulating Equipment, Electrical — UL 873 Terminal Blocks, Electrical — UL 1059 Terminals, Quick-Connect — UL 310 Test for Surface Burning Characteristics of Building Materials — UL 723 Thermal Cutoffs for Use in Electrical Appliances and Components — UL 1020 Transformers, Specialty — UL 506 Transformers, Class 2 and Class 3 — UL 1585 Tubing, Extruded Insulating — UL 224 Tubing, Flexible Nonmetallic, for Electric Wiring — UL 3 Valves, Electrically-Operated — UL 429 } Wire Connectors and Soldering lugs for Use With Copper Conductors - - UL 486A Wire Connectors for Use With Aluminum Conductors — UL 486B Wires and Cables, Rubber-Insulated — UL 44 Wires and Cables, Thermoplastic-Insulated — UL 83 1 J DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 Al i C/ APPENDIX A j Standards for Components Standards under which components of the products covered by this Stan- dard are judged include the following: Title of Standard — UL Standard Designation Attachment Plugs and Receptacles, Electrical — UL 498 Ballasts, Fluorescent-Lamp — UL 935 Circuit Breakers, Molded-Case, and Circuit-Breaker Enclosures — UL 489 Conduit, Electrical, Flexible Metal — UL 1 Conduit, Electrical, Rigid Metal — UL 6 Control Units for Fire-Protective Signaling Systems — UL 864 Cord Sets and Power-Supply Cords — UL 817 Detectors, Heat, for Fire Protective Signaling Systems — UL 521 Factory Made Air Ducts and Connectors — UL 181 Fire Dampers — UL 555 Flexible Cord and Fixture Wire — UL 62 Fluorescent Lighting Fixtures — UL 1570 Fuseholders — UL 512 Fuses for Supplementary Overcurrent Protection — UL 198G Fuses, Class H — UL 198B Fuses, Class R — UL 198E Fuses, Class T — UL 198H f Fuses, High-Interrupting-Capacity, Class K — UL 198D Fuses, High-Interrupting-Capacity, Current-Limiting Types — UL 198C Fuses, Plug — UL 198F Fusible Links for Fire Protection Service — UL 33 Grease Filters for Exhaust Ducts — UL 1046 Grounding and Bonding Equipment, Electrical — UL 467 Incandescent Lighting Fixtures — UL 1571 Lampholders, Edison-Base — UL 496 Lampholders, Starters, and Starter Holders for Fluorescent Lamps — UL 542 Motor-Operated Appliances, Electric — UL 73 Motors, Electric — UL 1004 Outlet Boxes and Fittings, Electric — UL 514 Plastic Materials for Parts in Devices and Appliances, Tests for Flammability of— UL 94 Polymeric Materials — Fabricated Parts — UL 746D Polymeric Materials — Long Term Property Evaluations — UL 746B Polymeric Materials — Short Term Property Evaluations — UL 746A t Polymeric Materials — Use in Electrical Equipment Evaluations — UL 746C Printed-Wiring Boards, Electrical — UL 796 Protectors for Electric Motors, Thermal — UL 547 50 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 , 46. Cautionary Markings 47.2 The installation instructions shall include a reference to the fact that: (1) the exhaust and General supply (if provided) air flow rates were estab- Iished under controlled laboratory conditions, 46.1 If more than one disconnect switch may and (2) greater exhaust and/or lesser supply air be required to disconnect all power within a con- may be required for complete vapor and smoke trol assembly or compartment, the assembly or removal in specific installations. compartment shall be marked with the word Paragraph 47.2 effective January 22,1992 "CAUTION" and the following or the equiva- lent: "Risk of Electric Shock — More than one 47.3 An installation wiring diagram shall be disconnect switch may be required to de- provided with each control unit illustrating the energize the device before servicing." field connections to be made. The drawing may be attached to the unit or, if separate, shall be 46.2 The marking required by paragraph 46.1 referenced in the marking attached to the unit shall be in letters not less than 1/8 inch(3.2 mm) with the drawing number or issue number, and high and shall be in a permanent location on the date. outside of the device or on a stationary—fixed, Paragraph 47.3 effective January 22,1992 nonremovable — part inside the device. The cautionary marking placed inside the cover or 47.4 The drawing shall show a pictorial view of on the connection diagram attached to the in- the installation terminals or leads to which field side of a cover is not acceptable. connections are made as they would appear when viewed during an installation. The termi- INSTALLATION AND nal numbers on the control unit shall agree with OPERATING INSTRUCTIONS the numbers on the drawing. A drawing not at- tached to the control unit shall be marked with 47. General the name or trademark of the manufacturer, drawing number or issue number, and date. } 47.1 Installation and operating instructions Paragraph 47.4 effective January 22, 1992 shall be . shipped with each exhaust hood, subassembly, and control unit. Instructions shall 47.5 The installation and operating instruc- be illustrated and shall include information ade- tions are to be used as a guide during the exami- quate for the intended installation and operation nation and tests of exhaust hoods. The instruc- of the product. Instructions shall cover mount- tions need not be in final printed form for the ing, wiring, exhaust and supply (if provided) air investigation. flow rates, and shall indicate that the installation Paragraph 47.5 effective January 22, 1992 be in accordance with.NFPA 96, Removal of Smoke and Grease-Laden Vapors from Com- mercial Cooking Equipment. Paragraph 47.1 effective January 22, 1992 J DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 49 ! 44.4 In addition to the items described in para- 45. Elevated Air Temperature graphs 44.2 and 44.3, a control unit shall be plainly and permanently marked where it will be 45.1 A control unit rated for use in an elevated visible after installation with the following infor- air temperature in accordance with paragraph mation. Except as indicated otherwise,the infor- 41.3 and note a in Table 41.1 shall be marked to mation shall appear directly on the control unit indicate the maximum allowable ambient air or on a separate installation wiring diagram ref- temperature. erenced in the marking. A. Electrical ratings. 45.2 If, in accordance with note a in Table 41.1, the temperature within a terminal box or B. Correct mounting position if a control compartment of certain controls or the wires in- unit is intended to be mounted in a definite tended for supply connections attain a tempera- position. ture higher than 60°C(140°F), the control shall be marked with the following statement or the C. Identification of lights, switches, meters, equivalent: "For supply connections, use No. . . . and the like regarding their function located AWG or larger wires rated for at least . . .0 (. . adjacent to the component. .F)." The AWG size indicated in the marking shall be the size of the conductors used in con- ' D. Maximum rating of fuses in each ducting the temperature test, and the tempera- : fuseholder located adjacent to the fuseholder. ture value shall be in accordance with Table 45.1. The wire size need not be specified if No. E. Reference to an installation wiring dia- 14 AWG wire was used for the test. The state- gram by drawing number and issue date if the ment shall be legible and located so that it will be drawing is separate from the control unit. clearly visible during installation and examina- tion of the supply-wiring connections. 44.5 Additional marking requirements are de- tailed in paragraphs 14.13, 14.16, 16.4, and Exception: If the supply-connection area is lo- 19.2. cated so that it is obvious that the supply wiring can be properly located and maintained away 44.6 If a manufacturer produces exhaust from parts of the device operating at tempera hoods or control units at more than one factory, tures higher than 60°C (140°F), a marking, each individual assembly shall have a distinctive clearly visible during installation and examina- marking to identify it as the product of a particu- tion of the supply-wiring connections, may be lar factory. used to indicate the area in which the supply wir- ing and splices should be located after the splice 44.7 A product having field-wiring terminals is made. shall be marked adjacent to the terminals with one of the following statements: A. "Use Copper Conductors Only" if the ter- minals are acceptable for connection only to TABLE 45.1 copper wire. TERMINAL BOX MARKING B. "Use Aluminum Conductors Only," if the terminals are only acceptable for connection Temperature Attained During Test to aluminum wire. At Points within Terminal Box t or Compartment, or on Wires Temperature C. "Use Copper or Aluminum Conductors," Intended for Supply Connections Marking or "Use Copper, Copper-Clad Aluminum, or Aluminum Conductors," if the terminals are 61-75°C (142-167°F) 75°C (167°F) acceptable for connection to either copper or 76-90°C (168-194°F) 90°C (194°F) ��` aluminum conductors. 48 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 MARKING H. Exhaust hoods tested for use over a spe- cific type of cooking appliance and/or prod- ' 44. General uct as described in paragraph 25.18 shall be marked for use over that specific type of appli- 1 44.1 The following information shall be per- ance only and/or with the specific product manently marked on each exhaust hood where it only. will be visible after installation: 1. Exhaust hoods provided with damper as- A. The manufacturer's or private labeler's semblies (exhaust or supply dampers, or both) name and catalog designation of the product. employing replacement parts such as fusible links, shall be marked to indicate the specific B. The voltage rating, frequency, and total ratings of replacement part. current in amperes of the product. If the product includes more than one circuit to be J. Exhaust hoods with and without exhaust supplied by individual external supply circuits, dampers employing filters that may be re- the current of each circuit shall be indicated. placeable, shall be marked to indicate the spe- The current rating may be shown as "overall cific type of grease filter to be used. rating — 12 amperes or less" if the input of Items F,G,I•and J of paragraph 44.1 effective any style of the model operating on 115 — January 22,1992 230 volts, single phase, is not more than 12 amperes. This information shall appear on the wiring diagram provided with the electrical enclosure. C. The minimum and maximum space be- tween the front lower edge of the hood and 44.2 An exhaust hood or control unit intended the cooking surface. for permanent connection to a wiring system other than metal-clad cable or conduit shall be D. The minimum exhaust air flow, as deter- marked to indicate each system for which it is ac- mined in the Cooking Smoke and Flare-Up ceptable. The marking shall be so located that it Test, Section 28. will be visible when power supply connections to the exhaust hood or control unit are made. E. The maximum supply air flow (if supply air is provided and directed into the hood), as determined in the Cooking Smoke and Flare-Up Test, Section 28. 44.3 If an exhaust hood consists of two or F. The minimum overhangs or maximum more subassemblies to be joined in the field, setbacks between the exhaust hood side and each subassembly shall be marked as specified in front panels and the cooking surface. item A of paragraph 44.1, and the information specified in items B to J shall be marked on each G. The maximum surface temperature of appropriate subassembly. In addition,each hood the cooking appliance used for the Cooking subassembly shall be marked to indicate the Smoke and Flare-Up Test, Section 28,shall be other subassemblies with which it is to be marked with the following or equivalent state- used. Each other subassembly including con- ment: "Suitable for use with cooking appli- trol units shall be marked with its catalog desig- ances developing surface temperatures up to nation and a statement designating the exhaust OF." hood with which it is to be used. j DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 47 43.3 The exhaust hood may be in a heated or 43.7 If the output of the test-equipment trans- i J: unheated condition for the test. former is 500 volt-amperes or larger, the test po- Paragraph 43.3 effective January 22,1992 tential may be indicated(1)by a voltmeter in the primary circuit or in a tertiary-winding circuit ow 43.4 The test shall be conducted when the ex- (2) by a selector switch marked to indicate the haust hood is fully assembled. It is not intended test potential, or (3) in the case of equipment that the exhaust hood be unwired, modified, or having a single test-potential output, by a mark- ; disassembled for the test. ing in a visible location to indicate the test poten- tial. When marking is used without an indicating Exception No. 1: A part such as a snap cover or a voltmeter, the equipment shall include a positive friction-fit knob that would interfere with per- means,such as an indicator lamp,to indicate that formance of the test need not be in place. the manually reset switch has been reset follow- ing a dielectric breakdown. Exception No. 2: The test may be conducted be- Paragraph 43.7 effective January 22,1992 fore final assembly if the test represents that for s the completed exhaust hood. Paragraph 43.4 effective January 22, 1992 43.8 Test equipment other than that described in paragraphs 43.5 and 43.7 may be used if :r 43.5 The test equipment shall include a trans- found to accomplish the intended factory former having an essentially sinusoidal output, a control. means of indicating the test potential,an audible Paragraph 43.8 effective January 22,1992 or visual indicator of electrical breakdown, and either a manually reset device to restore the equipment after electrical breakdown or an au- tomatic reject feature of any unacceptable unit. 43.9 During the test, the primary switch is tc Paragraph 43.5 effective January 22, 1992 be in the on position, both sides of the primary ** i circuit of the exhaust hood are to be connecter -- 43.6 If the output of the test equipment trans- together and to one terminal of the test equip- , former is less than 500 volt-amperes, the equip- ment, and the second test-equipment terminal if ment shall include a voltmeter in the output to be connected to the accessible dead meta: circuit to directly indicate the test potential. parts that are likely to become energized. Paragraph 43.6 effective January 22, 1992 Paragraph 43.9 effective January 22,1992 r 46 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 . 42.5 STANDARD-ATMOSPHERE TEST — MANUFACTURING AND Three samples of the label applied to test sur- --____---- PRODUCTION TEST faces as in the intended application are to be con- ditioned for 72 hours in a controlled atmosphere 43. Production-Line Dielectric maintained at 23 ± 2'C (73 i-4°F) with a rela- Voltage-Withstand Test tive humidity of 50 t 5 percent. 43.1 Each exhaust hood shall withstand with- out electrical breakdown as a routine TABLE 42.1 production-line test, the application of a poten- tial at a frequency within the range of 40 — 70 OVEN-AGING TEST TEMPERATURE hertz, (1) between the primary winding, includ- ing connected components, and accessible dead Maximum Temperature During metal parts that are likely to become energized, Temperature Test of Oven Temperature and (2) between primary wiring and accessible Surface to which Applied low-voltage (42.4 volts peak or less) metal parts, OF('C) OF (`e) including terminals. 60(140) or less 87 (189) 60 (176) or less 105 (221) Exception: An exhaust hood that has no electri- 100(212) or less 121 (250) cal components other than a motor that is ac- 125 (257) or 1083 150 (302) ceptable for permanent connection to the power 150 (302) or less 130 (356) supply, and that has been found to comply with Over 150 302 a the production-line dielectric voltage-withstand requirements in the Standard for Electric Mo- aA label that is applied to a surface attaining a temperature greater than tors, UL 1004, need not be subjected to this 150'C(302°F),during the temperature test,is to be oven-aged at a tem- test. perature representative of the temperatures attained by the appliance during normal and abnormal operation. Paragraph 43.1 effective January 22,1992 43.2 The production-line test shall be in ac- _ cordance with either condition A or condition B of Table 43.1. Paragraph 43.2 effective January 22,1992 TABLE 43.1 PRODUCTION-LINE TEST CONDITIONS Condition A Condition B Potential, Potential, Appliance Volts Time, Volts Time, Rating and Form DC AC Seconds DC AC Seconds 250 volts or less with a motor rated 112 homepowor or less 1400 1000 60 1700 1200 1 More than 250 volts or with motor rated more than 112 horsepower 1400+2.$Vs 1000+2Va 60 1700+3AV8 1200+2AV8 1 aMaximum marked voltage. _ Table 43.1 effective January 22,1992 �r DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 45 • 41.8 Other than at coils, temperatures are to 41.13 To determine if a device complies with be measured by thermocouples consisting of the requirements in this section, it is to be oper- wires not larger than No. 24 AWG. See Para- ated under normal conditions, except as other- graph 41.12. wise noted. The potential of the supply circuit is to be as specified in paragraph 38.2. 41.9 When thermocouples are used to deter- ; mine temperatures in electrical equipment, it is common practice to employ thermocouples con- MARKING TEST sisting of No. 30 AWG iron constantan wires and a potentiometer-type instrument. Such equip- 42. Permanence of Marking Test ment is to be used whenever referee tempera- ture measurements by thermocouples are 42.1 A pressure sensitive label that is required necessary. to be permanent shall be tested as described in paragraph 42.2. 41.10 The thermocouples and related instru- ments are to be accurate and calibrated. The 42.2 After being subjected to the conditions thermocouple wire is to conform with the re- described in paragraphs 42.3 — 42.5, a quirements for special thermocouples as listed in pressure-sensitive label or a label secured by ce- the table of limits of error of thermocouples in ment or adhesive is considered to be permanent Temperature-Measurement Thermocouples, if (1) immediately following removal from each ANSI MC96.1-1982. test medium and(2)after being exposed to room temperature for 24 hours following removal 41'.11 The preferred method of measuring from each medium: temperatures on coils is the thermocouple method, but temperature measurements by ei- A. Each sample demonstrates good adhesion ther the thermocouple or resistance method are and the edges are not curled. ( acceptable, except that the thermocouple `-•- ' method is not to be used for a temperature mea- B. The label resists defacement or removal 'a surement at a point where supplementary heat as demonstrated by scraping across the test insulation is employed. panel with a flat metal blade 1/16 inch (1.6 mm) thick, held at right angles to the test 41.12 The temperature of a copper coil wind- panel. ing is determined by the change-in-resistance method,wherein the resistance of the winding at C. The printing is legible and is not defaced the temperature to be determined is compared by rubbing back and forth 10 times with with the resistance at a known temperature by thumb or finger pressure (total of 20 rubs). means of the formula: 42.3 OVEN-AGING TEST — Three sample of the label applied to test surfaces as in the in- T = R (234.5 + t) -234.5 tended application are to be conditioned for 240 hours in an air oven maintained at the tempera- ture specified in Table 42.1. where: 42.4 IMMERSION TEST — Three samples T is the temperature to be determined in de- of the label applied to test surfaces as in the in- grees C, tended application are to be conditioned for 24 t is the known temperature in degrees C, hours in a controlled atmosphere maintained at R is the resistance in ohms at the temperature 23 ±2'C (73 ±4°F) with a relative humidity of to be determined, and 50 ± 5 percent. The samples are then to be im- r is the resistance in ohms at the known mersed for 48 hours in water at a temperature of temperature. 21 - 2-C (70 -4-F). 5sa�rr 44 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 • - TABLE 41.1 (Cont'd) TABLE 41.1 (Cont'd) ' MAXIMUM TEMPERATURE RISES MAXIMUM TEMPERATURE RISES Degrees *The limitation on phenolic composition and on rubber and thermoplastic Materials and Components C F Insulation does not apply to compounds that have been investigated and found to be acceptable for higher temperature. 17. Rubber-or thermoplastic-insulated 35 63 f For standard Insulated conductors other than those mentioned in items wire and cord except those men- 16 and 17,reference to the National Electrical Code NFPA No. 70-1987; boned in item 180 and the maximum allowable temperature,corrected to a 25°C(77°F)as- sumed ambient temperature,is not to exceed the marked temperature 18. Types RFH,FFH, and RH wires* 50 90' Omlf of the wire in question,unless investigated for specified heat resist- ant properties. 19. Other types of insulated wiresf — — gThe maximum acceptable temperature,corrected to a 25°C(77°F)as- sumed ambient temperature,of a sealing compound is 15°C(27°F)less 20. Sealing compoundsg — — than the melting-point temperature of the compound. 21. Componentsh hln lieu of complying with these temperature Omits,these components may be evaluated In accordance with the appropriate sections of Cat No. A.Capacitors 25 45 RDH-378, Reliability Design Handbook (March 1976), IIT Research B.Fuses 25 4,r Institute. C. Rectifiers—At any point IA fuse that has been Investigated and found acceptable for use at a (1)Germanium 25 45 higher temperature may be used at that temperature. (2)Selenium 25 45 (3)Silicon 25 45 jln lieu of complying with these temperature limits,a resistor may be ac- ceptable If it dissipates no more than one-half of its maximum power rat- D. Relays,transformers, and other ing under the test conditions specified coils with: (1)Class 105 Insulated windings Thermocouple method 65 117 41.4 A low-potential supply source may be Resistance method 75 135 used for conducting temperature tests on parts (2)Class 130 insulated windings other than coils or transformer windings. Unless Thermocouple method 85 153 otherwise noted, the tests on all parts are to be Resistance method 95 171 made simultaneously, as the heating of one part E. Resistors) may affect the heating of another part. (1)Carbon 25 45 (2)Wire wound 50 90 41.5 If equipment is obviously not intended for continuous operation, such as some types of damper controls, the heating test may be con- aThe temperature rise observed on the terminals and at points within a ducted so that the probable intermittent or terminal box of a control that Is rated for or continuous uous use above 25°C (77°F)may exceed the values specified but may notattain a temperature short-time operation of the equipment is higher than 90°C(194 0F). considered. bSee paragraph 2512. 41.6 If stalling of a motor on a timer, motor cif contacts of any metal and their supporting blades,busses,and con- operator, damper control or the like is part of nesting bars attain a temperature greater than 90°C(194°F)where a high the normal operation of a device while con- ambient temperature or other external temperature prevails,or where af- fected by a bimetal-heater or other heat source in the assembly,the con- trol shall perform acceptably when subjected to overload and endurance graph 38.2, the temperature rise shall not tests conducted at the high temperatures involved. exceed the limits specified in Table 41.1 with the Exception:Contacts of silver or a silver alloy that do not attain a tempera. motor stalled. ture higher than 100°C(212°F)need not be subjected to overload and en- durance tests conducted at the high temperature. 41.7 If stalling of a motor as described in para- dTempersture rise measured by a thermocouple at a point on the surface graph 41.6 is not part of the normal operation, Of a coil,at which the temperature is affected by an external source of the values specified in Table 41.1 do not apply; "ftk heat, may be 15°C(270h)higher than that specified,provided that the but the motor shall have acceptable impedance, temperature rise by the resistance method is not more then that p p specified. thermal, or overload protection that protects (Continued) against risk of fire or electric shock. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 43 39.3 A nonrenewable cartridge fuse is to be TABLE 41.1 connected in series with the device. A new fuse and device, connection, or conductor are to be MAXIMUM TEMPERATURE RISES used for each test. Degrees CONTROL UNIT TESTS Materials and Components C F 40. General 1. Knife-switch blades and contact jaws 30 54 40.1 Control units intended for use with ex- 2. Points on or within a terminal box or 35 63 haust hoods for the purpose of operating light compartment on which conductors to fixtures, fans, and water-wash systems are cov- be connected to the control may rests ered by these requirements for protection 3. Laminated contacts so 90 against risk of fire or electric shock. 4. Terminalss 50 90 40.2 Control units shall be subjected to the tests specified in Sections 37 — 39, and the 5. Class 90 insulation systemsb Heating est, Section 41. Thermocouple method 50 90 $ Resistance method 60 108 40.3 Control units incorporating auxiliary cir- 6. Class 2 transformer enclosure 60 108 cuits intended to supplement an existing signal- ing system shall comply with the applicable 7. Varnished cloth insulation 60 108 requirements in the Standard for Control Units S. Solid contacts,busses,and connect- for Fire-Protective Signaling Systems, UL 864. ing bars° 65 117 -41. Heating Test 9. Fuses[ 65 117 41.1 The materials and components used in a 10. Fiber employed as electrical insulation 65 117 control unit,when tested as described in this sec- 11. Wood or other combustible material 65 117 tion shall not attain a temperature at any point sufficiently high to constitute a risk of fire, to 12. Power transformer enclosure 65 117 damage any materials employed in the equip- 13. Class A insulation systems on coil ment, or to exceed the temperature rises speci- windingsd fied in Table 41.1. A. in an open motor 41.2 All values for temperature rises specified Thermocouple method 65 117 in Table 41.1 apply to equipment intended for Resistance method 75 135 use at ambient temperatures normally prevailing B.in a totally enclosed motor in occupiable spaces, which usually are not Thermocouple method 70 126 higher than 25°C (77°F) but may be as high as Resistance method so 144 40'C (104°F) occasionally for brief periods. ta. Class gs insulation systems on coil Tests of equipment for service with such ambi- ent temperatures may be conducted — without windings other than to a motorb,d p y Thermocouple method 65 117 correction—at any ambient temperature in the Resistance method 85 153 range of 10 — 40°C (50 — 104-F). 15. Class 130 insulation systemsb,d 41.3 Equipment intended specifically for use Thermocouple method 85 153 with a prevailing ambient temperature con- Resistance method 95 171 stantly more than 25°C (77'F) is to be tested at 16. Phenolic composition employed as 125 225 such higher ambient temperature, and the al- electrical insulation or as a part of lowable temperature rises specified in Table the deterioration of which would,e- 41.1 are to be reduced by the amount of the dif- sult in a risk of fire or electric shock ference between the higher ambient tempera- (Continued) ture and 25°C (77°F). 42 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 , TABLE 39.1 SHORT-CIRCUIT TEST CURRENTS Full-Load Amperes Single Phase Circuit Capacity, 115 V 208 V 230-240 V 270 V Amperes 9.8 or less 5.4 or less 4.9 or less - 200 9.9-15.0 5.5-8.8 5.0-8.0 6.65 or less 1000 16.1-34.0 8.9-18.5 8.1-17.0 - 2000 34.1-80.0 18.7-44.0 17.1-40.0 - 3500 Over 80.0 Over 44.0 Over 40.0 Over 6.65 5000 TABLE 39.2 FULL-LOAD MOTOR CURRENTS IN AMPERES CORRESPONDING TO VARIOUS ALTERNATING CURRENT HORSEPOWER RATINGS Horsepower (W output) 110-120 Volts 220-240 Voltsa 1/10 (75) 3.0 1.5 1/8 (93.3) 3.8 1.9 1116 - (125.3) 4.4 2.2 1/4 (186.5) 5.8 2.9 113 (248.7) 7.2 3.6 1/2 (373.0) 9.8 4.9 3/4 (559.5) 13.8 6.9 1 (746) 16.0 8.0 1-1/2 (1119) 20.0 10.0 2 (1492) 24.0 12.0 3 (2238) 34.0 17.0 aTo obtain full load current for a 200 or 208 volt motor,increase the corresponding 220-240 volt current by 15 and 10 percent,respectively. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 41 37.4 If the maximum impedance of an initiat- 38.3 With reference to item B of paragraph ing circuit extended from a control unit is re- 38.1, the dielectric test between low-voltage quired to be less than 100 ohms in order to parts of opposite polarity is to be conducted on obtain successful operation, the reduced voltage coil windings after breaking the inner coil lead test is to be made with the maximum impedance where it enters the layer. This opposite polarity connected to the circuit. If no impedance limita- test may be waived on the complete assembly if tion is indicated in the marking, 100 ohms shall the components have been separately subjected be employed in the initiating device circuit. For to this test condition and the wiring is as speci- a normal operating line circuit of a control unit fied in Internal Wiring, Section 15. the maximum impedance indicated on the instal- lation wiring diagram shall be used. 38.4 To determine compliance with the re- 38. Dielectric Voltage-Withstand quirements in paragraph 41.1, the product is to Test be tested by means of a 500-volt-ampere or larger capacity transformer, the output voltage 38.1 A control unit shall withstand, without of which is essential sinusoidal and can be varied. breakdown for a period of 1 minute, the applica- The applied potential is to be increased from tion of a 60 hertz potential as follows: zero until the required test level is reached, and is to be held at that level for 1 minute. The in- A. Between high-voltage live parts and dead crease in the applied potential is to be at a uni- metal parts, and between live parts of high form rate and as rapid as is consistent with its and low-voltage circuits, the test potential value being correctly indicated by a voltmeter. shall be: The product is to be at the maximum operating temperature reached in normal use. 1. 1000 volts plus twice rated voltage, ex- cept as noted in subitem 2. 2. 900 volts for motors rated at not more than 1/2 horsepower (375 W output) and 39. Short-Circuit Test not more than 250 volts. See paragraph 38.2. 39.1 Motor overload protective devices, bond- ing connections or conductors (when required), B. Between low-voltage parts of opposite po- or both, and conductors of motor circuits shall larity and between low-voltage parts and dead withstand short circuiting, when tested as speci- metal parts, the test potential shall be 500 fied in paragraphs 39.2 and 39.3. volts. C. For a Class 2 transformer (see paragraph 39.2 To determine compliance with the re- 21.2),the test potential shall be twice the max- quirement in paragraph 39.1, the device is to be imum rated primary voltage plus 1000 volts connected in a circuit having a capacity based on applied between primary and secondary wind- the full-load current and voltage rating of the ings and between the primary winding and the control unit, as indicated in Table 39.1. The core or enclosure. control unit full-load current is to be determined by adding the full-load current of each motor, as 38.2 With reference to paragraph 38.1, where indicated in Table 39.2, for the marked horse- higher than rated potential is developed in a power rating of the motor, and the current rat- motor circuit through the use of capacitors, the ings of the other load. Each simultaneous load rated voltage of the system is to be employed to condition is to be considered separately, and the determine the dielectric test potential;unless the maximum resulting current is to be employed as developed steady state potential, as determined the basis of selection of the capacity of the test in the Heating Test, Section 41, exceeds 500 circuit. The voltage source for the test circuit is volts, in which case the test potential for the to be an alternating current supply and the cir- �__ parts affected is to be 1000 volts plus twice the cuit capacity is to be measured without the de- developed voltage. vice in the circuit. 40 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 Volume Change 36.3 The plate containing the test samples is to be positioned horizontally (grease side down) 35.9 For the volume change test, smooth speci- 18 inches above a metal container holding three mens from the gaskets or seals, or complete sam- pints (1.4 L) of grease. The container is to mea- ples if the parts are small, are to be used. The sure approximately 13 inches (330 mm) in diam- volume of each specimen is to be determined by eter by 8-1/2 inches (215 mm) deep and having weighing it first in air and then in water. Three an evaporating surface at the liquid level of ap- specimens are then to be dried and immersed for proximately 130 square inches (839 cm2). This 70 hours in lard and three specimens are to be container is placed on a heat source capable of dried and immersed in corn oil for 70 hours. heating the grease to 600°F (315°C). The pre- The lard and the corn oil are to be maintained at heated grease is then ignited. 136 ± 1'C (277 t 1.8°F) throughout the im- mersion period. At the end of the immersion 36.4 The test is continued until all of the period, the specimens that have been immersed grease has burned and the container is dry. in lard are to be removed and allowed to cool 30 to 60 minutes at room conditions, and the speci- ELECTRICAL TESTS mens that have been immersed in corn oil are to be cooled in fresh corn oil maintained at room 37. Overvoltage and Undervoltage conditions. The lard or corn oil is then to be Operation Test wiped from the specimens, one at a time,and the specimens are to be rinsed in ethyl alcohol, blot- 37.1 The operating parts and electronic cir- ted dry with a soft cloth or filter paper,and again cuits of a control unit shall be able to withstand weighed, first in air and then in water. The per- 110 percent of its rated voltage continuously cent change in volume is to be calculated for without damage during the normal operating each specimen and the results for three speci- condition,and the control unit shall operate suc- mens in each of the test liquids are to be cessfully during the normal operating condition '"w averaged. at the increased voltage. It shall also operate suc- cessfully at 85 percent of its rated voltage. 35.10 Apparatus for the volume change test shall consist of an analytical balance provided 37.2 For operation at the higher voltage speci- with a bridge for the support of a vessel of dis- Pied in paragraph 37.1, the control unit is to be tilled water, and a metal die for cutting rectan- subjected to the increased voltage during the gular 1 by 2 inch specimens. normal operating condition until constant tem- perature is reached on the parts, and then tested for the normal operating conditions. For this 36. Fire and Leakage Test of test zero line impedance will be employed in the Fittings for initiating device circuit. Hood Penetrations 37.3 For operation at the lower voltage speci- 36.1 When a fitting is tested as specified in par- fied in paragraph 37.1, the control unit is to be agraphs 36.2 — 36.4, there shall be no propaga- subjected to rated voltage during the normal tion of grease vapor or flame through or around operating condition until constant temperature the fitting. is reached on the parts and then tested immedi- ately for the normal operating condition at the 36.2 Two representative samples of the fitting reduced voltage. In making the reduced voltage shall be installed in a 20 by 20 inch (508 by 508 test, the voltage is to be reduced by a means mm), 0.064 inch (1.63 mm) thick stainless steel which will maintain a stable potential of the re- plate in accordance with the manufacturer's quired value under the most severe conditions of specifications. The plate and fittings shall then normal loading. The reduced voltage value is to be evenly coated with grease on the fire exposed be computed on the basis of the rated nominal AWk side (bottom) to obtain a loading of 0.3 pound voltage when a storage battery is intended to be per square foot (1.5 kg/m2). employed with the control unit. `� DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 39 35. Gasket and Sealant, Physical Aging and Immersion and Immersion Tests 35.4 If the size or shape of the gasket or seal is Tensile Strength and Elongation such that tensile strength and elongation speci- mens cannot be obtained from the part,the com- 35.1 The tensile strength and elongation of plete part, or a section from the part, is to be gaskets and seals used in the construction of fit- subjected to the aging and immersion exposures tings and accessories for use with hoods and specified in paragraphs 35.5 and 35.6. ducts shall not decrease by more than 50 percent of their original tensile strength and elongation 35.5 Three specimens are to be subjected to after being subjected to the exposures described, air oven aging at 136± 1°C (277 ± 1.8°F) for in paragraphs 35.5 and 35.6. The part shall seven days.The test is to be conducted in accord- . show no apparent deterioration, such as crack- ance with the test procedures outlined in and ing, hardening, softening, melting, or damage using the air oven described in ASTM D573-88, after these exposures. Test Methods for Rubber Properties in Compression. 35.2 The average volume change of gaskets and seals used in the construction of fittings and accessories for use with exhaust hoods and ducts 35.6 The specimens are to be immersed in shall be in the range of minus 1 to plus 50 per- such a manner that they do not touch each other cent after being subjected to the exposures spec- or the sides of the container. Three specimens ified in paragraph 35.9. are to be immersed for 70 hours in lard and three specimens are to be immersed in corn oil. 35.3 For the tensile strength and ultimate The lard and the corn oil are to be maintained at elongation determinations, nine specimens are 136 ± 1-C (277 -±' 1.8°F) throughout the im- ,,,� to be prepared. Dumbbell specimens are to be mersion period. The specimens are then to be die cut from the gasket or seal, when possible. blotted with a soft cloth or filter paper, the 1 ��-✓ Specimens are to be die cut in accordance with inch bench marks, if required, are to be applied, ASTM D412-87, Test Methods for Rubber and the tensile strength and elongation tests are ' Properties in Tension, using Die C or D. Die D to be conducted. The average values obtained may be used if the size or shape of the gasket or on the immersed specimens are to be compared seal does not permit Die C specimens. The con- with the average values for three specimens not stricted portion of the specimen may be buffed immersed in lard or corn oil. or skived to remove any surface irregularities. The buffing or skiving equipment is to be as specified in ASTM D3183-84, Standard Practice 35.7 Tensile strength and elongation are to be for Rubber — Preparation of Pieces for Test determined in accordance with the test methods Purposes from Products. Three measurements outlined in ASTM D412-87, Test Method for for thickness are to be made in the constricted Rubber Properties in Tension. The rate of portion of the specimen. The minimum value travel of the power-actuated grip is to be 20 ± 1 obtained is to be used as the thickness of the inch (508.0 ±25.4 mm) per minute. specimen in calculating the tensile strength. A micrometer or equivalent is to be used for mea- Exception: The rate of travel of the power- suring dumbbell specimens as specified in actuated grip for gasket material that is a com- Method A, ASTM D3767-84, Standard Practice posite material is to be 5± 1/4 inch(127.0± 6.4 for Rubber— Measurement of Dimensions. For mm) per minute. specimens requiring elongation, two benchmarks, 1 inch (25 mm) apart, are to be marked on the central portion of each specimen 35.8 The elongation, if required, is to be mea- after the immersion. If an extensometer is used sured by means of a scale, extensometer, or that does not require bench marks, the bench other device indicating the elongation with an marks may be omitted. accuracy of 0.1 inch (2.5 mm). 38 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 32. Burnout Test Cycling Test 32.1 During the test specified in paragraph 34.2 When tested as specified in paragraph 32.2, exit gas temperatures shall not exceed 34.3,a damper operating mechanism shall be ca- 375'F (190'C), flame shall not enter the duct pable of closing the damper after 6000 cycles of connected to the exhaust hood,and the grease in operation. The damper shall not be damaged the duct shall not become ignited. The grease such that it will not perform acceptably when within the hood shall not penetrate any external tested as specified in Sections 27 — 32. seams or joints. The temperature rise attained by any exhaust hood part during the test shall be not more than the applicable value specified in Column 2 of Table 27.1. 34.3 The damper is to be mounted in the same orientation as intended in the exhaust hood. Exception: The 375°F temperature limitation The damper is to be manually set (if of the and the limitation on flames entering the test manual-reset type) or automatically set (if of the collar do not apply to exhaust hoods without ex- automatic-reset type) in the open position. The haust dampers. dampers are to be triggered to close as intended. This process is to be repeated for the number of 32.2 Prior to this test, the cooking appliance is cycles specified in paragraph 34.2. to be de-energized and the grease containers re- moved. The interior surfaces of the exhaust hood and all interior surfaces of the test collar within 3 feet (0.9 m) of the collar of the exhaust Closure Test hood are to be evenly coated with grease to ob- tain a loading of 0.3 pound per square foot (1.5 34.4 When tested as specified in paragraph A"k kg/m2). Equilibrium temperatures are to be es- 34.5, exhaust and supply dampers shall remain tablished under the conditions specified in pars- completely closed. } graph 27.3. The method for conducting the Abnormal Flare-Up Test, Section 29, is then to be followed placing the pan in the position found to most likely produce the highest exit gas tem- 34.5 Dampers are to be tested in an exhaust peratures in the abnormal flare-up test. hood that is connected to exhaust and supply ducts of a size in accordance with the manufac- Exception: The test collar and exhaust duct are turer's installation instructions. The dampers not coated for exhaust hoods without exhaust are to be set in the open position and the air flow dampers. is to be adjusted to the values specified by the manufacturer. The dampers are to be closed 33. Pressure Test under these flow conditions and the static pres- sures developed within the exhaust and supply 33.1 Parts intended for the handling of fluids ducts are to be measured. The exhaust damper is under pressure shall withstand, without rupture, to be subjected to a negative pressure of ten a hydrostatic pressure equivalent to five times times the value measured in the exhaust duct. the maximum working pressure. Determination The supply damper is to be subjected to a posi- of the test pressure for fittings for hood penetra- tive pressure of ten times the value measured in tions shall be based on their intended use. the supply duct. 34. Damper Tests Exception: If the exhaust hood incorporates means to automatically shut down the exhaust or General supply blowers, and if the exhaust or supply blower is a type requiring manual restart, then 34.1 The maximum size of each exhaust and the exhaust or supply damper shall remain supply damper assemblyshall be subjected to the closed against a pressure of not less than two damper cycling and damper pressure tests de- times the pressure value measured during in- scribed in paragraphs 34.2 — 34.7. tended operation. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 37 29.5 The grease is to be heated until ignition. Exception No. 2: Damage confined only to elec- If the cooking appliance is not capable of heating trical wiring,components,and accessories, other the grease to ignition, an external heat source is than thermostats,subject to replacement and re- to be used. Following ignition, the fire is to be al- pair, is acceptable for the purposes of these lowed to burn freely and no attempt is to be requirements. made to extinguish it. 31.2 The initial test method and operating 30. Fan-Failure Test conditions are to be the same as those used for the Temperature Test, paragraph 27.2, except 30.1 During the test specified in paragraph that a means is to be provided for burning grease 30.2, exit gas temperature shall not exceed in deep containers. 375°F (190°C) and flames shall not enter the test collar connected to the exhaust hood. The 31.3 Equilibrium temperatures on the cooking temperature rise attained by any exhaust hood appliance surface and in the exhaust collar are to part during each test shall be not more than the be established as specified in paragraph 27.3. temperature rises indicated in Column 2 of Table 27.1. 31.4 A container,'measuring approximately 13 Exception: The 375°F temperature limitation inches (330 mm)in diameter by 8-1/2 inches and the limitation on flames entering the test (216 mm) deep and having an evaporating sur- collar do not apply to exhaust hoods without ex- face at the liquid level of approximately 130 haust dampers. square inches (0.084 m2) is to be placed on the cooking surface in a location where the flaming 30.2 The test method and operating condi- grease is most likely to produce the highest exit tions are to be as specified in Abnormal gas temperature or flaming in the test collar. Flare-Up Test, "Section 29, except the test is to Three pints (1.7 L) of grease are to be placed in be conducted with the air flow through the ex- the container. The grease then is to be heated in haust hood adjusted to 50 percent of the mini- the container until ignition. mum air flow specified by the manufacturer. The supply air flow, if provided, is to be off. The test then is to be repeated with the exhaust and 31.5 The test is to be continued until all of the supply (if provided) blowers turned off. grease has burned and the container is dry. Exit gas temperatures are to be recorded during this 31. Fire Test test for exhaust hoods with exhaust dampers. 31.1 When an exhaust hood is tested as speci- fied in paragraphs 31.2 — 31.6, exit gas temper- 31.6 If the exhaust hood is equipped to close a atures shall not exceed 375'F (190°C) and damper or to otherwise react to excessive tem- flames shall not enter the test collar connected perature developed in the assembly and such a to the exhaust hood. Parts of the exhaust hood, device is not actuated during the test, the test is including bodies, shelving, framing, dampers, to be repeated as follows until the damper closes. and the like, shall not warp or otherwise be dam- The size of the container or quantity of contain- aged to the extent that the product may increase ers used, or both, is to be increased in any given the risk of fire, electric shock, or injury to per- increments to provide a burning surface not sons during continued use. larger than an area equal to the length of the hood multiplied by the depth of the cooking sur- Exception No. 1: The 375'F temperature limi- face. The quantity of grease used in such con- , tation and the limitation on flames entering the tainers is to be sufficient to give a burning time test collar do not apply to exhaust hoods without equal to that produced during the initial test exhaust dampers. with 3 pints (1.4. L) of grease. 36 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 " 28. Cooking Smoke And Flare-Up 28.6 Exhaust`hoods evaluated for use with a Test specific type of cooking appliance as described in paragraph 25.18 may be tested using the specific 28.1 When the product is tested as specified in type of product intended to be cooked with that paragraphs 28.2 — 28.6, there shall be no evi- appliance in lieu of the meat cakes described in dence of smoke or flame escaping outside the ex- paragraph 28.5. The test shall be conducted by haust hood, there shall be no actuation of limit loading the maximum amount of the product on controls, and the maximum temperature rise at- or in the cooking appliance and cooking the tained by any exhaust hood part shall be not product until it is overcooked (very well done). more than the temperature rise indicated for This cooking cycle is to be repeated at least such part in Column 1 of Table 27.1. once. 28.2 The exhaust air flow is to be adjusted to 29. Abnormal Flare-Up Test the minimum flow specified by the manufac- turer. The supply air flow (if provided) is to be 29.1 During the test specified in paragraphs adjusted to the maximum flow specified by the 29.2 — 29.5, exit gas temperatures shall not ex- manufacturer. The exhaust air flow is to be mea- ceed 375°F (190°C) and flame shall not enter sured as described in paragraph 27.2 with the the test collar connected to the exhaust hood. cooking appliance in the unheated state or re- Parts of the exhaust hood, including bodies, moved from beneath the hood. The supply air- shelving, framing, dampers, and the like, shall flow is to be measured in the supply air duct at a not warp or otherwise be damaged to an extent distance not less than three times the diameter that could cause the product to develop a risk of of the duct upstream from the duct collar fire or electric shock in continued use. The tem- and/or from any elbows or bends within three perature rise attained by any exhaust hood parts diameters of the duct. Measurement is to be during the test shall be not more than the tem- made at a minimum of nine points as described perature rises indicated in Column 2 of Table in paragraph 27.2 for exhaust duct airflow 27.1. measurements. Exception: The 375°F temperature limitation 28.3 The cooking appliance, as specified in and the limitation on flames entering the test paragraphs 25.16 — 25.19, is to be installed be- collar do not apply to exhaust hoods without ex- neath the exhaust hood at the.farthest location haust dampers. from the exhaust collar, at the clearances and overhangs described in paragraph 25.6. 29.2 The exhaust air flow is to be adjusted to the minimum flow specified by the manufac- 28.4 Equilibrium temperatures are to be estab- turer and measured as described in paragraph lished as described in paragraph 27.3. 27.2. The supply air flow, if provided, is to be off. I28.5 Meat cakes made of 70 percent lean ground beef approximately 4 inches in diameter 29.3 Equilibrium temperatures are to be estab- and 3/8 inch thick and weighing not less than 5 lished as specified in paragraph 27.3. ounces, are to be placed uniformly on the cook- ing surface. The meat cakes may be frozen or 29.4 One pint (0.5 L) of liquefied grease is to thawed. The quantity of cakes placed on the be placed in a shallow pan, approximately 18 by cooking surface is to be the maximum permitted 12 by 4 inches deep, and the pan placed on the by the area of the cooking surface. The cakes are surface of the cooking appliance. The pan is to to be cooked on one side for 5 minutes, turned be located where the flaming grease is most over, cooked on the other side for 5 minutes, likely to produce highest temperatures on the Iand removed from the cooking surface. This exhaust hood components. The test may be re- cooking cycle is to be repeated at least once. peated with the pan in other locations. i DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 35 TABLE 27.1 (Cont'd) MAXIMUM TEMPERATURE RISES a7he motor diameter is to be measured in the plane of the laminations of the circle circumscribing the stator frame,excluding lugs,boxes and the like,used solely for motor cooling,mounting,assembly,or connection. bOrdinariy,coil or winding temperatures are to be measured by thermocouples unless the coil is inaccessible for mounting of these devices(for example,a coil immersed in sealing compound)or unless the coil wrap Includes thermal Insulation or more than two layers,1132 inch(0.8 mm)maximum,of cotton, paper,rayon,or the like.For a thermocouple measured temperature of a coil or of an akemating-current motor,other than a universal motor,having a diame- ter of 7 inches(178 mm)or less,the thermocouple Is to be mounted on the Integrally applied insulation an the conductor. At a point on the surface of a coil (not including universal motors)where the temperature Is affected by an external source of heat,the temperature rise for Column 1 limits measured by a thermocouple may exceed the Indicated maximum by the following amounts,provided that the temperature rise of the coil as measured by the resistance method is not more than specified in the table. 1. 5°C(9°F)for Class A insulation on coil windings of alternating-current motors having a diameter of 7 Inches(178 mm)or less,open type. 2.10°C(18°F)for Class 8 insulation on coil windings of atternadng-current motors having a diameter of 7 Inches(178 mm)or less,open type. 3.15°C(27°F)for Class A insulation on coil windings of akemating-current motors having a diameter of more than 7 Inches(178 mm),open type. 4.20°C(36°F)for Class 8 insulation on coil windings of ahemating-current motors having a diameter of more than 7 Inches(178 mm),open type. cFor an electrolytic capacitor physically Integral with or attached to a motor,the temperature rise on insulating material integral with the capacitor enclosure may be not more than 65°C(117°F). dA capacitor which operates at a temperature higher than a 65°C(117°F)rise may be judged an the basis of Its marked temperature rating. aThe limitations on phenolic composition and on rubber and thermoplastic insulation do not apply to compounds which have been investigated and found to have special heat resistant properties. f Reference should be made to the National Electrical Code for the temperature of a standard insulated conductor that is not mentioned. The Column 1 maximum allowable temperature rise is 25°C(77°F)less than the temperature limit of the wire in question;and the maximum allowable temperature rise +. where Column 2 rises are specified is to be based on the heat resistant properties of the insulation. t gThe specified maximum temperature rises apply to parts whose deterioration or malfunction may result in the risk of fire,electric shock,or Injury to persons. hWhen the reflectivity of aluminum-coated steel is utilized to reduce the risk of fire,the maximum allowable temperature rise is 8306F(461 0C). IThe specified maximum temperature rises apply If the galvanizing is required as a protective coating,or the reflectivity of the surface is utilized to reduce the risk of fire. \. i 34 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 TABLE 27.1 (Cont'd) MAXIMUM TEMPERATURE RISES Column 1 Column 2 Device or Material °C OF °C OF E. Metals9 1. Aluminum Alloys a. 1100 183 330 239 430 b. 3003 239 430 294 530 c. 2014,2017,2024, 5052 294 530 350 630 2. Aluminum-Coated Steelh 572 1030 708 1275 3. Carbon Sheet Steel and Cast Iron 461 830 517 930 4. Carbon Steel-Coated with Type A19 Ceramic 572 1030 628 1130 5. Galvanized Steell 267 480 350 630 6. Stainless Steel Types 302,303,304,321, 347 686 1235 767 1380 Types 309S 867 1560 950 1710 Types 310, 3109 - 894 1610 975 1755 Type 316 667 1200 748 1345 ' Type 405 683 1230 795 1430 Types 403,409,410,416 572 1030 683 1230 Type 430 728 1310 808 1455 Type 442 877 1580 933 1680 Type 446 961 1730 1042 1875 7. Zinc Castings 89 160 145 260 F. Any handle, knob, grip, and the like that the operator may need to touch to operate, regulate or shut off the exhaust hood. 1. Metallic parts 33 60 2. Nonmetallic parts 46 8O (Continued) . J DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 33 TABLE 27.1 (Cont'd) 1 MAXIMUM TEMPERATURE RISES Column 1 Column 2 Device or Material °C OF °C OF 3. Relay,solenoid,and other coils(Thermocouple method):b a. Class 105 insulated winding 65 117 115 207 b. Class 130 insulated winding 85 163 - 140 252 4. Sealing compounds 40°C(104°F)less than melting point 5. Transformer enclosuresb a. Class 2 transformers 60 108 85 153 b. Power and ignition transformers 65 117 90 162 C. Insulated Conductors° 1. Appliance wiring material 75°C(167°F)rating 50 90 65 117 80°C(176°F)rating 55 99 70 126 90°C(194°F)rating 65 117 80 144 105°C(221°F)rating 80 144 95 171 200°C(392°F)rating 175 315 200 360 250°C(482°F)rating 225 405 250 450 2. Flexible cord—Types SJO, SJT,SO, ST 35 63 60 108 3. GTO cable 35 63 60 108 4. Wire,Code Types RF, FF, RUW 35 63 60 108 Types RH, RFH, FFH, RHW,THW,THWN 50 90 75 135 Types T,TF,TFF,TW 35 63 60 108 Types TA 65 117 90 162 S. Other types of insulated wires See notef D. Electrical Insulation—Generale 1. Fiber used as electrical insulation or cord bushings 65 117 90 162 2. Phenolic composition used as electrical insulation or as parts where failure will result in a hazardous condition. 125 225 150 270 3. Varnished cloth insulation 60 108 85 153 4. Other material 25°C(77°F)less than its temperature rating (Continued) 32 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 TABLE 27.1 MAXIMUM TEMPERATURE RISES Column 1 Column 2 Device or Material °C OF °C OF A. Motorsa,b 1. Insulation systems on coil windings of altemating-current motors hav- ing a frame diameter of 7 inches(178 mm)or less(not including univer- sal motors). a. Class A Insulation systems 1. In open motors— Thermocouple or resistance method 75 135 115 207 2. In totally enclosed motors— Thermocouple or resistance method 80 144 115 207 b. Class B insulation systems 1. In open motors— Thermocouple or resistance method 95 171 140 252 2. In totally enclosed motors— Thermocouple or resistance method 100 180 140 252 2. insulation systems on coil windings of altemating-cunent motors hav- ing a frame diameter of more than 7 inches(178 mm)and of direct- current motors and universal motors. a. Class A insulation systems 1. In open motors— Thermocouple method 65 117 115 207 Resistance method 75 135 115 207 2. In totally enclosed methods— Thermocouple method 70 126 115 207 Resistance method 80 144 115 207 b. Class B insulation systems 1. In open motors— Thermocouple method 85 153 140 252 Resistance method 95 171 140 252 2. In totally enclosed motors— Thermocouple method 90 162 140 252 Resistance method 100 180 140 252 B. Components 1. Capacitors Electrolytic types 40 72 Other typesd 55 117 (Not specified) 2. Field Wiring 35 53 60 108 (Continued) DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 31 27. Temperature Test at one plane in the duct shall be averaged to de- ' termine the air flow rate. The measurements - 27.1 When tested as specified in paragraphs shall be made with a calibrated velometer, 27.2 and 27.3, the maximum temperature rise thermoanemometer, or other suitable device. attained by an exhaust hood part during the The measurements are to be made at various lo- temperature test shall not be more than the ap- cations within the duct, symmetrically located as i plicable values indicated in Column 1 of Table shown in Figure 25.2 for thermocouple loca- 27.1. All values for temperature rises specified tions. The measurements are to be made with in Table 27.1 apply to equipment intended for the cooking appliance removed from beneath use at ambient temperatures normally prevailing the exhaust hood or in the unheated state. in occupiable spaces, which usually are main- tained near 77°F (25°C) but may be as high as 104'F (40°C) occasionally for brief periods. Tests of equipment for service with such ambi- ent temperatures may be conducted, without correction, at any ambient temperature in the range of 50 — 104°F (10 — 40°C). 27.2 The exhaust air flow is to be adjusted to produce the minimum air flow through the ex- 27.3 The cooking appliance specified in para- haust hood recommended by the manufactur- graphs 25.16 — 25.19 is to be energized to pro- er's instructions. The supply air blower (if duce the intended surface temperature.The test provided) shall be off. The exhaust air flow is to is to be continued until equilibrium tempera- be measured in the exhaust duct at a distance not tures are attained on all components and parts of less than three times the diameter of the duct the assembly. A temperature is considered to be from the exhaust collar and/or from any elbows at equilibrium when three successive readings or bends within three diameters upstream or taken at 10 minute intervals indicate no change downstream. A minimum of nine measurements or show a decrease. 30 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 19% 25.18 The performance testing for exhaust 26. Thermostat Calibration Test hoods may be conducted using cooking appli- ances other than those specified in Table 25.1 26.1 Prior to conducting the other tests de- and products other than that specified in pars- scribed in this standard,each thermostat used in graph 28.5 provided that the exhaust hood is an exhaust hood to detect heat or fire is to be marked for use with that specific appliance(s) tested as specified in paragraphs 26.2 — 26.5. and product(s)only as specified in item H of par- Following all other tests described in this stan- agraph 44.1. The cooking surface temperature dard, the thermostat is again to be tested in the used shall be the maximum temperature the ap- oil bath to determine its operating temperature. pliance is capable of producing. Upon completion of the tests described in Sec- tions 27 — 32, the operating temperature of a 25.19 The temperature measurements of the thermostat shall be within 2 percent of the value cooking surfaces are to be made using thermo- determined prior to the tests conducted in Sec- couples of the type specified in paragraph 25.12. tions 27 — 32. The temperature at a minimum of five locations over the cooking surface shall be measured to 26.2 The thermostat is to be placed in an up- determine an average temperature. The ther- right position and the temperature sensing ele- mocouples are to be securely held in thermal ment immersed in an oil bath.The vessel is to be contact with the cooking surface as described in provided with a source for heating the oil at the paragraph 25.13 and located as shown in Figure rate specified in paragraph 26.5 and with means 25.3. to agitate the oil and measure the temperature of the oil bath. FIGURE 25.3 26.3 Agitation is to be used as an aid in obtain- THERMOCOUPLE-LOCATIONS ing uniformity in temperature of the oil in the ON COOKING APPLIANCE bath. SURFACE 26.4 A mercury thermometer of laboratory quality or a No. 24 — 30 AWG Type J thermo- couple is to be used to determine temperatures • • of the oil employed in the bath test. The point of measurement in the oil 1s to be level with the �---� center of the temperature sensing element. L(cc�r MR) 26.5 The temperature of the oil bath is to be • • — raised at a convenient rate until the oil is within 11 L 20°F (11.1°C) of the temperature rating of the X/6 xi6 L device.The rate of temperature rise is then to be controlled at a rate not exceeding 1'F (1/2°C) X per minute until the thermostat operates. The temperature of the oil at the time of thermostat •-Thermocouple operation is to be recorded. S3540 J DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 29 FIGURE 25.2 �— THERMOCOUPLE LOCATION IN TEST DUCT ' RECTANGULAR CIRCULAR H 3 DUCT I R 2 R V 3 • • DUCT 1 � 1 . • • • v - - --- --- - - v .' Ile 52931 • — THERMOCOUPLE H Rectangular Circular Rectangular duct divided into nine equal areas Circular duct divided radially into eight equal as illustrated with a thermocouple located in the areas with thermocouples located as illustrated center of each of the resulting nine areas. in each of the eight areas and at the center of the duct. 28 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 FIGURE 25.1 25.15 Room temperature is to be measured by a thermocouple centered 4 feet (1.2 m) in front % THERMOCOUPLE of and at the same elevation as the top surface of ' INSTALLATION METHODS ON the cooking appliance located centrally within a METAL SURFACES vertically oriented 6 inch (152 mm) length of 2 inch (51 mm) steel pipe, aluminum painted, and x inch 72.7 mm) 1/8 inch(3.2 mm)to 1/4 inch(6.{mm) open at both ends. Separation WMw Welded to Moth Cooking Appliances THERMOCOUPLE WELDEO TO METAL SURFACES 25.16 Cooking appliances used during the per- W inch formance testing of exhaust hoods shall be of the (12.7 mm) Seldor commercial type and shall be one of the types specified in Table 25.1. Exception: Exhaust hoods may be evaluated for THERMOCOUPLE SOLDERED TO METAL SURFACES use with a specific appliance only as described in W inch paragraph 25.18. (12 ku.7 mm)) 5/16 inch(7.9 mm)Mad by 318 inch(9.5 m7m) o,maximum rivet or wow. _ TABLE 25.1 COOKING APPLIANCES 1/32 inch(0.8 mm)thick by 1/2 inch(12.7 mm) Minimum Average diameter wall-may M—d. g Cooking Surface THERMOCOUPLE SECURED TO METAL SURFACES Temperature ,m,, S2257 THERMOCOUPLE Appliance OF (eC) 25.14 The exit gas temperature is to be mea- 1. Solid fuel(i.e.mesquite,charcoal,etc.) 700 (357) sured in exhaust hoods with exhaust dampers or gas conveyor-type char-broilers using a grid of thermocouples of identical length 2. Gas or electric char-broilers loo wired in parallel. The thermocouple grid is to be (301) located in a plane perpendicular to the axis of air 3. Gas or electric griddles 400 (190) flow and within 6 inches (152 mm) downstream of the collar provided on the exhaust hood for attachment of duct work. The test collar in which the thermocouple grid is located is to be 25.17 The cooking appliance selected for test- the same size as the collar of the exhaust hood ing shall have a cooking surface of at least 540 and the cross section of the test collar is to be di- square inches (0.35 m2) and be capable of pro- vided into equal areas with thermocouples lo- ducing the minimum average surface tempera- cated as illustrated in Figure 25.2. tures specified in Table 25.1. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 27 r� ( 25.5 The room or building in which exhaust 25.9 Exhaust hoods with exhaust dampers \ ,tj hoods are tested shall be free of drafts with the shall be provided with an observation window lo exception of replacement(make-up)air directed cated in the test sample's exhaust collar or the into the room. The room shall not develop a exhaust duct to permit the observation of flames - negative pressure in excess of 0.02 inch water within the collar. The bottom of the window (0.005 kPa). When replacement air is required should be located no farther than 6 inches above to insure that a negative pressure in excess of the horizontal plane of the dampers. 0.02 inch water is not developed, the air is to be introduced into the room in a manner that 25.10 The grease used in the tests is to be re- would not affect the exhaust hood's perform- fined pork lard or vegetable oil. The volume of ance.The size of the room or building should be grease to be used in the tests is to be determined at least 8 feet high and have a floor space of at by measuring the grease in the liquid state. least three times the area of the exhaust hood being tested. The room temperature is to be Instrumentation maintained between 50— 104°F(10—40°C). 25.11 Temperatures shall be measured by thermocouples except that the change-of- resistance method may be used to measure the 25.6 The cooking appliance used during the temperature of motor windings or of coils. tests shall comply with the requirements speci- fied in paragraphs 25.16 — 25.19. The exhaust 25.12 Thermocouples used in the determina- hood shall be installed at the maximum recom- tion of temperatures in connection with the mended distance between the cooking surface heating of electrical equipment are to consist of and front lower edge of the exhaust hood for the wires not larger than No. 24 AWG (0.21 mm2) Cooking Smoke and Flare-Up Test, Section 28, and not smaller than No. 30 AWG (0.05 mm2). "low with the minimum recommended overhang be Whenever referee temperature measurements tween the exhaust hood's sides and front panels, by means of thermocouples are necessary, ther- and the cooking surface. Exhaust hoods in- mocouples consisting of Type J No. 30 AWG tended for installations with the front edge of iron constantan wires and a potentiometer type cooking appliance extending outside the front of indicating instrument are to be used. The edge of the exhaust hood shall be tested with the thermocouple wire is to conform to the require- cooking surface at the maximum recommended ments for"special"thermocouples as specified in distance from the front of the exhaust hood. the table for limit of error of thermocouples in the Standard for Temperature Measurement Thermocouples, ANSI MC96.1-1982. 25.7 The cooking appliance is to be installed at the minimum recommended clearance between 25.13 A thermocouple junction and adjacent the exhaust hood and the cooking surface for thermocouple lead wire are to be securely held the tests described in Sections 27 and 29 — in thermal contact with the surface of the mate- 32. rial whose temperature is being measured. In most cases, taping or cementing the thermocou- ple to the surface will provide acceptable ther- 25.8 The exhaust duct used during the tests is mal contact with the surface; but where a metal to be connected to a power ventilator and should surface is involved, brazing or soldering the be sized so that the velocity through the exhaust thermocouple to the metal may be necessary. collar is at least 1500 feet (457 m) per minute, See Figure 25.1. Thermocouples are to be se- except during the Fan Failure Test, Section 30. cured to wood surfaces by staples over insulated Either the duct is to be provided with a damper portions of the wire and the tip of the thermo- or a suitable ventilator is to be used to permit ad- couple is to be held in thermal contact with the justment of the air velocity. surface by pressure-sensitive tape. O 26 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 TABLE 24.1 MINIMUM SPACINGS IN LOW-VOLTAGE CIRCUITS Components Minimum Acceptable Spacing Between uninsulated live parts, 1/32 inch(0.8 mm), regardless of polarity,and between provided that the an uninsulated live part and a dead construction of the metal part,other than the enclosure, parts is such that the which may be grounded when the product spacing will be Is installed. maintained Between an uninsulated live part and 118 inch(3.2 mm) the wall of a metal enclosure including fit- tings for the connection of conduit or metal-clad-cable. Between wiring terminals,regardless of 1/4 Inch(6.4 mm) polarity,and between the wiring terminal and a dead metal part,including the enclo- sure and fittings for the connection of con- duit,that may be grounded when the de- vice is installed. PERFORMANCE 25.3 All exhaust hoods that utilize a waterwash system shall be subjected to the applicable tests 25. General described in paragraph 25.1 or 25.2 with no water supply, as well as the Pressure Test, Sec- 25.1 Exhaust hoods with exhaust dampers tion 33. shall be subjected to the tests described in Sec- tions 26 — 32. 25.2 Exhaust hoods without exhaust dampers incorporating continuous liquid-tight welded construction and no electrical components other Test Installation than lighting fixtures that comply with the re- quirements in Section 20 shall be subjected to 25.4 The minimum and maximum lengths of the tests described in Sections 27 and 28. Ex- each style of exhaust hood are to be tested in a haust hoods without exhaust dampers incorpo- room that complies with the requirements Be- rating continuous liquid-tight welded construc- scribed in paragraph 25.5. The samples shall be tion and electrical components shall be subjected constructed of the minimum width and height to the tests described in Sections 27 — 30. Ex- intended. Exhaust hoods having more than one haust hoods without exhaust dampers that have exhaust collar may be tested with the minimum seams and joints constructed of other than a and maximum lengths intended to be served by liquid-tight continuous weld shall be subjected one exhaust collar. The samples are to be in- to the tests described in Sections 27 — 32. See stalled in accordance with the manufacturer's Exception No. 1 to paragraph 5.9. instructions. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 25 TABLE 23.2 - DIMENSIONS OF BUSHINGS Bushing Dimensions Trade Size of Conduit, Overall Diameter, Height, Inches (mm)OD Inches (mm) inches (mm) 1/2 (21.3) 1 25.4 3/8 9.5 3/4 (26.7) 1-15/64 31.4 27/64 10.7 1 (33.4) 1-19132 40.5 33164 ' 13.1 1-1/4 (42.2) 1-15/16 49.2 9/16 14.3 1-1/2 (48.3) 2-13/64 56.0 19/32 15.1 2 (60.3) 2-45164 68.7 5/8 15.9 2-112 (73.0) 3-7132 81.8 3/4 19.1 3 (88.9) 3-7/8 98.4 13/16 20.6 3-112 (101.6) 4-7116 112.7 15/16 23.8 4 (114.3) 4-31/32 126.2 1 25.4 4-1/2 (127.0) 5-35164 140.9 1-1116 27.0 5 (141.3) 6-7/32 158.0 1-3/16 30.2 6 (168.3) 7-7/32 183.4 1-114 31.8 24. Low-Voltage Circuits 24.1 The spacing for electrical components 23.8 In measuring a spacing between an that are installed in a low-voltage circuit(see par- uninsulated live part and a bushing installed in agraph 4.3) that includes a temperature limiting the knockout referred to in paragraph 23.7, it is device, motor overload protective device, or to be assumed that a bushing having the dimen- other protective device, and where a short or sions indicated in Table 23.2 is in place, in con- grounded circuit may result in a risk of fire or junction with a single locknut installed on the electric shock, shall comply with the require- outside of the enclosure. ments in Table 24.1. 24 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 TABLE 23.1 ' MINIMUM SPACINGS Ratings Minimum Spacings Through Air Over Surface To Enclosureb Volt-Amperes Volts Inch mm Inch mm Inch mm 0-2000 0-300° 1/8 3.2 1/4 6.4 1/4 6.4 More 0-150 1/8 3.2 1/4 6.4 1/2c 12.7 than 151-300 1/4 6.4 318 9.5 1/2c 12.7 2000 301-600 3/8 9.5 1/2b,c 12.7 1/2c 12.7 all over 300 volts,spacings In last line of table apply. bincludes fittings for conduit or metal-clad cable. hho spacings at wiring terminals of a motor shall be 1/4 inch(6.4 mm)for a motor rated 250 volts or less and 318 inch(9.5 mm) for a motor rated more than 250 volts. 23.2 The spacing resulting from the installa- 23.5 The spacing requirements in Table 23.1 tion of an electrical component, including spac- do not apply to the inherent spacings inside a ings to dead metal or enclosures, shall be those motor, except at wiring terminals, or to the in- indicated in Table 23.1. _ herent spacings of a component provided as part of the exhaust hood. Such spacings are judged on the basis of requirements for the component. 23.3 The spacings between field wiring termi- nals of opposite polarity, or between a field wir- 23.6 An insulating liner or barrier of vulca- ing terminal and grounded metal, shall be not nized fiber,varnished cloth,mica,phenolic com- less than 1/4 inch (6.4 mm), except that if short- position, or similar material employed where circuiting or grounding of such terminals will spacings would otherwise be insufficient, shall not result from projecting strands of wire, the benot less than 0.028 inch (0.71 mm) in thick- spacing through air need not be greater than ness, except that a liner or barrier not less than 1/8 inch (3.2 mm). Measurements are to be 0.013 inch(0.33 mm)in thickness may be used in made for solid wire of adequate ampacity for the conjunction with an air spacing of not less than load connected to each terminal. one-half of the through air spacing required. Material having a lesser thickness may be used if it has equivalent insulating, mechanical, and flammability properties. 23.4 The through air and over surface spac- ings at an individual component part are to be 23.7 For an enclosure not provided with a con- judged on the basis of the volt-amperes used and duit opening or knockout, spacings not less than controlled by the individual component. How- the minimum specified in paragraphs 23.1 — ever, the spacing from one component to an- 23.6, and Section 24 shall be provided between other,and from any component to the enclosure uninsulated live parts and a conduit bushing in- or to other uninsulated dead metal parts exclud- stalled at any location likely to be used during in- ing the component mounting surface, are to be stallation. Permanent marking on the enclosure, evaluated on the basis of the component with the a template,or a full-scale drawing furnished with highest maximum voltage rating; and the total the product may be used to indicate such volt-ampere rating of both components. locations. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 23 20. Lighting Fixtures 21.3 A fuse provided in the secondary circuit of a Class 2 transformer shall be rated at not 20.1 A lighting fixture may be incorporated in more than 5 amperes if the open circuit secon- an exhaust hood provided that: dary potential of the transformer is 15 volts or less,nor more than 3.2 amperes if such potential A. The fixture complies with the require- is more than 15 volts. ments for fixtures for use in exhaust hoods above cooking equipment as specified in the 22. Switches and Controllers (1) Standard for Fluorescent Lighting Fix- tures, UL 1570 or (2) Standard for Incandes- 22.1 A switch or controller shall have a cur- cent Lighting Fixtures, UL 1571, and is rent, frequency,and voltage rating not less than installed so that the temperature limits of the that of the load that it controls when the blower materials used are not exceeded; and is operated while connected to a supply circuit of rated voltage. The effects of the output B. A wireway supplying the fixture is not ex- waveform of motor speed controllers shall not posed within the exhaust hood. impair the operation of the motor during all conditions of intended and unintended motor 20.2 The part of a lighting fixture exposed operation. within the exhaust hood shall (1) be formed of Paragraph 22.1 effective January 22,1992 corrosion-resistant material or (2) be protected against corrosion. The part shall have smooth 22.2 A switch subjected to a temperature surfaces to reduce collection of exhaust deposits higher than 65'C(149°F)is to be evaluated with and facilitate cleaning. respect to the temperature limitations of the ma- terials employed. 20.3 A lighting fixture mounted through the Paragraph 22.2 effective January 22,1992 exhaust hood-or other enclosure of the exhaust hood shall not void the integrity of the exhaust 22.3 A single-pole switching device shall not be hood when tested in accordance with these re- connected to the grounded conductor. quirements. If the lighting fixture may be lO- Paragraph 22.3 effective January 22,1992 cated in a concealed space of the building, the construction and installation of the fixture shall 22.4 Switches and controllers shall clearly indi- provide a complete fire barrier. cate whether they are in the open "off' or closed on position.Where these switch and controller handles are operated vertically rather than rota- tionally or horizontally, the up position of the 21. Transformers handle shall be the "on" position. 21.1 A power transformer shall have a secon- Exception: Double pole switches. dary rating not less than the load controlled. Paragraph 22.4 effective January 22,1992 Exception: The load controlled may exceed the ELECTRICAL SPACINGS marked rating if the transformer does not ex- ceed the maximum acceptable temperature dur- 23. High-Voltage Circuits ing the performance tests. 23.1 Except as noted in paragraphs 23.3 — 21.2 A transformer that furnishes power to a 23.6,the spacings between uninsulated live parts low-voltage circuit shall be of the two-coil insu- of opposite polarity and between an uninsulated lated type, and comply with the Standard for live part and a dead metal part shall not be less Class 2 and Class 3 Transformers, UL 1585. than the values indicated in Table 23.1. 22 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER 21, 1990 TABLE 17.1 18.2 If the container of-an electrolytic capaci- tor is constructed of metal,the container shall ei- J BONDING WIRE CONDUCTOR SIZE ther be permanently insulated from dead metal parts by moisture resistant insulation not less Rating of Size of Bonding Conductors than 1/32 inch (0.8 mm) thick, or shall be sepa- Overcurrent rated from dead metal parts by spacings in ac- Device, Copper Wire Aluminum Wire cordance with Table 23.1. Amperes AWG (mm2) AWG(mm2) 15 14 (2.1) 12 (3.3) 20 12 (3.3) 10 (5.3) 30-60 10 (5.3) 8 (8.4) 100 8 (8.4) 6 (13.3) 19. Overcurrent Protection 200 6 (13.3) 4 (21.2) General e—Or equivalent cross-sectional area. 19.1 Each required overcurrent or overload protective device shall be wholly inaccessible from outside the exhaust hood without opening 17.12 If more than one size branch-circuit a door or cover, except that the operating han- overcurrent protective device is involved, the dle of a circuit breaker, the reset button of a size of the bonding conductor is to be based on manually resettable motor protector,and similar the rating of the overcurrent protective device parts may project outside an enclosure. that is also intended to provide ground-fault pro- tection for the component bonded by the con- 19.2 Circuit breakers shall clearly indicate ductor. For example, if a motor is individually whether they are in the open"off"or closed"on" protected by a branch-circuit overcurrent pro- position. Where circuit breaker handles are op- tective device smaller than other overcurrent erated vertically rather than rotationally or hori- protective devices used with the equipment, a zontally, the "up" position of the handle shall be bonding conductor for that motor is to be sized the "on" position. on the basis of the overcurrent protective device Paragraph 19.2 effective January 22,1992 that is also intended to provide ground-fault pro- tection of the motor. Motor Overload Protection 17.13 A bonding conductor shall be of mate- 19.3 A motor shall be provided with overload rial acceptable for use as an electrical conductor. protection as follows: If of ferrous metal, it shall be protected against corrosion as specified in Protection Against Cor- A. Thermal protection complying with the rosion, Section 8. requirements in the Standard for Thermal Protectors for Electric Motors, UL 547; or 17.14 A separate bonding conductor or strap shall be installed so that it is protected from me- B. Impedance protection complying with chanical damage. See paragraph 16.5. the requirements in the Standard for Electric Motor-Operated Appliances, UL 73; or 17.15 A splice shall not be employed in a con- ductor used to bond an electrical enclosure, C. Other protection that is shown to be motor frame, or other electrical component. equivalent to the protection specified in Item A. 18. Capacitors . 19.4 A fuse may be used as a motor overload 18.1 Each motor starting and running capaci- protective device if the motor is protected by the for shall be housed within an enclosure or largest size fuse that can be inserted in the container. fuseholder. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 21 17.6 Bonding around a resilient mount shall 17.10 Metal-to-metal hinge bearing members not depend on the clamping action of rubber or for doors or covers may be considered as a similar material. means for bonding the door or cover for grounding providing a multiple bearing pin type Exception: A connection that depends upon the (piano-type) hinge is employed. This require- clamping action exerted by rubber or similar ment is not to be considered to allow the accept- material is acceptable if it complies with the re- ance of hinges, bearings, and the like, for quirements in paragraph 17.9 under any degree carrying current between interrelated fixed and of compression permitted by a variable clamping moving parts. device and after exposure to the effects of oil, grease, moisture, and thermal degradation which are likely to occur in service. 17.7 A clamping device shall be arranged for reassembly in its intended position following dis- assembly or removal for maintenance purposes. Conductors 17.8 An equipment bonding jumper shall be used to connect the grounding terminal of a 17.11 The size of a wire or strap conductor grounding-type receptacle to a grounded metal employed to bond an electrical enclosure or enclosure. motor frame shall be based on the rating of the branch-circuit overcurrent protective device. Exception: Where the metal enclosure is surface mounted, direct metal-to-metal contact between A. The size of a wire conductor shall be in the device yoke and the metal enclosure shall be accordance with Table 17.1. �S permitted to ground the receptacle to the metal enclosure. This exception shall not apply to B. A conductor, such as a clamp or strap, �- cover-mounted receptacles unless the metal en- used in place of a separate wire conductor as closure and cover combination provide satisfac- indicated in item A, is acceptable provided the tory grounding continuity between the metal minimum cross-sectional conducting area is enclosure and the receptacle. equivalent to or greater than the applicable wire sizes indicated in Table 17.1. 17.9 The adequacy of a bonding connection, such as a clamp, that cannot be determined by Exception No. 1: A smaller conductor may examination, shall be established by subjecting a be used if the bonding connection and con- : sample of the connection to (1) a short circuit ductor is acceptable when tested as described test involving a fuse of the size required by the in paragraph 17.9. exhaust hood (see Section 39), and (2) an overcurrent test involving a current equal to Exception No. 2: A bonding conductor to an twice the rating of the branch-circuit electrical component need not be larger than overcurrent device for a period of 2 minutes. the size of the motor-circuit conductors or the None of the sample connection shall open as a size of the conductors supplying the result of the tests. component. 20 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 16.2 Segregation of insulated conductors may Exception: Metal parts as described below need be accomplished by clamping, routing, or an not be bonded for grounding. equivalent means that provides permanent separation. A. Adhesive-attached metal-foil labels, screws, handles, and the like, that are located 16.3 The output of a transformer device sup- on the outside of an enclosure or cabinet and plying a low-voltage circuit as specified in para- isolated from electrical components or wiring graph 4.3 shall not be interconnected with the by a grounded metal part. output of another such transformer device pro- vided as a part of the product unless the voltage B. Isolated metal parts, such as motor con- and current measurements at the output termi- troller magnetic frames and armatures, small nals of the interconnected devices are within the assembly screws, and the like, that are sepa- values for a single low-voltage transformer rated from wiring and uninsulated live parts. device. C. A panel or cover that does not enclose an 16.4 Two or more transformer-supplied low- uninsulated live part if insulated parts and wir- voltage circuits provided as a part of the product ing are separated from the panel or cover. are to be treated as separate circuits. The cir- cuits shall be segregated or separated by barriers D. A panel or a cover that is insulated from in accordance with paragraphs 16.1 and 16.2 electrical components and wiring by an st- and the output of each transformer shall be tached insulating barrier of vulcanized fiber, marked to indicate that the separation shall be varnished cloth,phenolic composition,or sim- maintained. ilar material not less than 1/32 inch (0.8 mm) thick. 17. Bonding For-Grounding General 17.3 The bonding shall be by a positive means, -� 17.1 Each exposed noncurrent-carrying metal such as by clamping, riveting, bolted or screwed part that may become energized shall be bonded connection, brazing, or welding. to the point of connection of the field- equipment grounding terminal or lead, if re- quired,and to the metal surrounding the knock- 17.4 The bonding connection shall penetrate out, hole or bushing provided for field power nonconductive coatings, such as paint. A bolted supply connections. See paragraph 17.2. or screwed connection that incorporates a star washer under the screwhead is considered ac- 17.2 Uninsulated metal parts of cabinets, elec- ceptable for penetrating nonconductive coatings trical enclosures, motor frames and mounting where required. brackets, controller mounting brackets, capaci- tors, and other electrical components, intercon- necting tubing and piping, valves, plumbing accessories, or the like, that may be contacted by 17.5 If a bonding means depends upon the the user or by service personnel shall be bonded threads of a screw, at least two full threads shall for grounding. See paragraph 6.5. engage the metal. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 19 !� Grounded Conductor 15.5 The internal wiring of an exhaust hood '' '• shall not be routed in or through the exhaust _y 14.15 A field-wiring terminal intended for the plenum (area of hood behind the filters or connection of a grounded conductor shall be grease removal devices). identified by means of a metallic plated coating Paragraph 15.5 effective January 22,1992 that is substantially white in color and distin- guishable from the other terminals, or by some 15.6 Wiring shall have insulation rated for the other manner, such as on an attached wiring potential involved and the temperatures to diagram. which it may be subjected.The temperature rat- ing of the fixture wiring shall be at least that 14.16 A lead or terminal provided for connec- marked on the fixture. tion of a grounded supply conductor shall be ei- ther (1) finished in a white or natural gray color 15.7 Wiring shall be protected against me- or(2)have the word"WHITE" marked adjacent chanical damage, shall be supported and routed to the terminal. No other lead or terminal shall to reduce the likelihood of damage due to con- be so identified. tact with a sharp edge, moving part,or hot part, and shall not-be immersed in water. 14.17 A field-wiring terminal or lead for con- nection to a grounded supply conductor shall Wiring Methods not be electrically connected to a single-pole manual switching device that has an off position 15.8 A splice or connection shall be mechani- or to a single-pole overcurrent (not thermal) cally secure and bonded electrically. A soldered protective device. connection shall be made mechanically secure before being soldered if breaking or loosening 15. Internal Wiring of the connection may result in risk of fire or electric shock. iGeneral 15.9 A splice shall be provided with insulation 15.1 The internal wiring of an exhaust hood equivalent to that of the wires involved if the shall be complete to the means provided for spacing between the splice and other metal parts field-wiring connection. is not permanent. 15.2 Control equipment, including an auxil- 15.10 A splice shall be located, enclosed, and iary device that is not part of the exhaust hood supported so that it is not subject to mechanical but which is supplied with the hood for field in- damage, flexing, motion, vibration due to air stallation, shall have provision for field-wiring movement, or the like. connections in accordance with these requirements. 16. Separation of Circuits 15.3 Wiring shall be enclosed in metal-clad 16.1 Unless provided with insulation rated for cable, conduit, electrical metallic tubing, or the highest voltage involved, insulated conduc- metal raceways,control boxes,or the equivalent. tors of different internal wiring circuits, includ- Fittings shall comply with the Standard for Elec- ing wires in a junction box or compartment trical Outlet Boxes and Fittings, UL 514. other than subdivided circuits or branch circuits of the same voltage and from the same feeder, 15.4 The internal wiring of an exhaust hood shall be separated by barriers or shall be segre- shall be installed within a liquid-tight metal race- gated; and shall also be separated or segregated way or conduit. from uninsulated live parts connected to a dif- Paragraph 15.4 effective January 22,1992 ferent circuit. 18 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER Y1, 1990 14.2 The electrical enclosure of an exhaust Grounding hood shall be provided with wiring terminals or with leads not less than 6 inches (152 mm)long, 14.8 An equipment-grounding terminal or for connection of field-wiring conductors. The lead shall be provided in a product intended for terminals or leads shall be sized for connection connection to the power supply by means other as required by the National Electrical Code, than a metal-enclosed wiring system, such as by ANSI/NFPA 70-1990, corresponding to the nonmetallic-sheathed cable. marked rating of the product and the marked conductor type, such as AL and CU. See para- 14.9 A field-wiring terminal intended solely graph 44.7. for connection of an equipment grounding con- ductor shall be capable of securing a conductor 14.3 The location of an outlet box or compart- of the size indicated in Table 17.1 for the rating ment in which field wiring connections are to be of the branch-circuit overcurrent protective de- made shall permit inspection of the connections vice to which the product will be connected. See after the product is installed as intended. The paragraph 14.12. connections shall be accessible without remov- ing parts other than service covers or panels and 14.10 The surface of an insulated lead in- the cover of the outlet box or compartment in tended solely for the connection of an which the connections are to be made. equipment-grounding conductor shall be green with or without one or more yellow stripes and 14.4 An outlet box or compartment in which no other leads visible to the installer shall be so field wiring connection is to be made shall com- identified. ply with paragraph 13.3 and 13.4 with respect to its enclosure construction. 14.11 A wire-binding screw intended for the Paragraph 14.4 effective January Yt,1994 connection of an equipment-grounding conduc- tor shall have a green colored head that is 14.5 The outlet box or compartment to which hexagonal-shaped, slotted, or'both. field-wiring connections are made shall be suffi- ciently large to provide space for installation of 14.12 At a wire-binding screw, upturned lugs the conductors of the number and size required or the equivalent shall be provided to retain the by the National Electrical Code, ANSI/NFPA conductor. 70-1990 when at least a 6 inch (152 mm) length of each conductor is brought into the wiring 14.13 A pressure wire connector intended for compartment. connection of an equipment-grounding conduc- tor shall be identified by being marked "G," "GR," "Ground," "Grounding," or the equiva- 14.6 A wire-binding screw shall not thread into lent, or by a marking on a wiring diagram pro- material other than metal. vided on the product. If a pressure connector is used adjacent to the connectors intended for the 14.7 Field-wiring terminals shall be secured to supply conductors and it could be mistaken for their supporting surfaces by methods other than the neutral of a grounded supply, the pressure friction between surfaces so that they will not connector shall be additionally identified by a turn or shift in position if such motion results in marking indicating "Equipment Ground," by a reduction of spacings to less than the minimum green color, or by both. required. This may be accomplished by two screws or rivets;by square shoulders or mortices; 14.14 The wire-binding screw or pressure wire by a dowel pin, lug, or offset; by a connecting connector described in paragraphs 14.11 — strap or clip fitted into an adjacent part; or by 14.13 shall be located so that it is unlikely to be some other equivalent method. removed during servicing of the product. ...AWk. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 17 FIGURE 13.3 B. Tubing for air or fluid systems, and foamed plastics, shall not be more flammable EXAMPLE OF ACCEPTABLE than 94HB.Foamed plastics classed 94HBF in BAFFLE accordance with the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, are accepta- 2 X BUT NEVER LESS ble for meeting this requirement. THAN 1" (25.4 mm) BAFFLE PLATES 13.18 Openings in the enclosure shall not give i E BELOW access to any relays, terminals, controls, or re- T�M OF ENCLOSURE) lated components 'that may be subject to tampering. C c4 L� Q Q 13.19 An electrical enclosure intended for re- cessed mounting and whose front panel is to be BOTTOM OF ENCLOSURE flush with the surface of the wall shall have no E8141A openings that vent into concealed spaces of a building structure, such as into hollow spaces in 13.17 All combustible plastic material used the wall, when the product is mounted as within an enclosure shall be classified as 94V-2, intended. 94HF-2, or better, in accordance with the Stan- dard for Tests for Flammability of Plastic Mate- 13.20 The requirement in paragraph 13.19 rials for Parts in Devices and Appliances, UL does not apply to an opening for a mounting 94. screw or nail or for a manufacturing operation (such as paint drainage) if: - Exception No. 1: Motors, relays, capacitors, f semiconductors, transformers, switches, lnsulat- A. The opening does not have a dimension .. ing tubing or tape,and other electrical elements greater than 17/64 inch(6.75 mm)or an area that have been investigated for flammability. greater than 0.055 square inches (35.5 mm2), and Exception No. 2: Meter faces and cases (if ac- ceptable for mounting live parts) and indicator B. There is no more than one mounting lamps or jewels, or both, are exempt from flam- screw hole for each 12 inches (305 mm) of mability requirements. length of mounting surface, or fraction thereof. Exception No. 3: The following requirements apply to parts that are isolated either (1) by at least 1/2 inch (12.5 mm) of air, or (2) by a solid 14. Field-Wiring Connections barrier of 94V-1 or less flammable material from uninsulated electrical parts that involve a General risk of electric shock. 14.1 Each product shall have provision for the A. Gears, cams, belts, bearings, strain-relief connection of one of the applicable wiring sys- bushings applied over PVC jacketed cords, tems in accordance with the National Electrical and other small parts that contribute negligi- Code, ANSI/NFPA 70-1990. A power supply ble fuel to a fire need not be investigated. cord shall not be provided. 16 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 13.9 The interior of a battery storage com- 13.14 Openings in the sides of the enclosure partment shall be so protected that it will be re- shall be located and sized to prevent entry of a / sistant to detrimental action by the electrolyte. foreign object and to reduce the risk of person- J nel contacting internal parts. Louvers are ac- Ventilating Openings ceptable if shaped to deflect external falling objects outward. See Figure 13.2 for examples 13.10 Ventilation openings are not permitted of acceptable louver designs. within electrical enclosures installed in or at- tached to an exhaust hood. FIGURE 13.2 13.11 Ventilation openings may be provided LOUVERS within the enclosure of a control unit not -in- stalled in or attached to an exhaust hood pro- vided they comply with paragraphs 13.12 — 13.20. 13.12 Openings in the top of the enclosure INSIDE OUTSIDE shall be constructed and sized to prevent entry of foreign objects. 13.13 To comply with the requirements in par- OUTWARD PROJECTION agraph 13.12, openings directly over uninsulated live parts shall not exceed 0.187 inch (475 mm) in any dimension unless the con- figuration of the openings prevents direct access to uninsulated live parts. See Figure 13.1 for ex- amples of acceptable top cover designs. INSIDE OUTSIDE FIGURE 13.1 CROSS SECTIONS OF TOP COVER DESIGNS EC510 INWARD PROJECTION �— 13.15 The bottom of the enclosure under areas containing only materials classified as 94V-1 or better, as specified in the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, may SLANTED OPENINGS have openings not larger than 1/4 inch(6.4 mm) square. Openings that are not square are accept- able if they do not have an area greater than 1/16 square inch (2.56 mm2). r 13.16 The bottom of the electrical enclosure ventilated as specified in paragraph 13.15 under areas containing materials not classified as EC500 VERTICAL OPENINGS 94V-1 or better shall be provided with a baffle as shown in Figure 13.3. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 15 AOW 13.3 The enclosure of a control unit installed Transparent Covers in or attached to an exhaust hood shall be of a liquid-tight construction. 13.5 Glass covering an observation opening in an electrical enclosure shall be secured in place Exception No. 1: The door or cover of a control so that it cannot be displaced in service and shall unit need not form a liquidtight seal between it- provide mechanical protection for the enclosed self and the enclosure if attached to the exterior parts. The thickness of a glass cover shall be surface of an exhaust hood at a location not sub- not less than that indicated in Table 13.1. ject to exposure to any cooking smoke or vapors. 13.6 A glass panel for an opening having an area of more than 144 square inches (929 cm2), Exception No. 2: An enclosure or junction box or having any dimension greater than 12 in.(305 installed on top of an exhaust hood that does not mm), shall be continuously supported at least penetrate the continuously welded shell of the 3/16 inch (4.8 mm) along all four edges of the hood is not required to be of a liquid-tight panel, or an equivalent arrangement. construction. Paragraph 13.3 effective January 22,1992 13.7 A transparent.material other than glass may be used for the cover of an observation 13.4 The enclosure of a control unit which is opening provided the material does not intro- recessed in an exhaust hood shall comply with duce a risk of fire,distort,nor become less trans- paragraph 13.3 and shall be attached to the ex- parent at the temperature to which it may be haust hood with a continuous liquidtight weld,if subjected under either normal or abnormal serv- the enclosure penetrates that portion of the ex- ice conditions. haust hood that serves as the liquidtight shell to capture grease laden vapors and exhaust gases. Battery Storage Compartments Exception: The attachment of the control unit 13.8 A storage compartment for batteries, enclosure to the exhaust hood may be other than shall have a total volume not less than twice the a continuous liquidtight weld if subjected to the volume occupied by the batteries. Ventilating Fire and Leakage Test of Fittings for Hood Pen- openings shall be provided so located as to per- etrations, Section 36. mit circulation of air for dispersion of gas while Paragraph 13.4 effective January 22,1992 the battery is being charged at the highest rate permitted by the means incorporated in the con- trol unit. TABLE 13.1 THICKNESS OF GLASS COVERS Maximum Size of Opening Minimum Length or Width, Area, Thickness, Inches (mm) Square Inches (cm2) Inches (mm) 4 102 16 103 1116 1.6 12 305 144 929 118 3.2 Over 12 305 Over 144 929 a 8118 Inch(3.2 mm)or more,depending upon the size,shape,and mounting of the glass panel. 14 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 DECEMBER Y1, 1990 EXAW:s 10 12.2 The manual means specified in paragraph 12.1 shall(1)not be located more than 7 feet(2.1 m)above floor level,(2)be accessible to the oper- ator, (3) be operable using the unaided hand, and (4) be marked to identify the purpose and method of operation. Limit Controls 12.3 A temperature or other control device, that is provided so that the product complies with the performance requirement of this stan- dard, shall comply with the requirements in the = Standard for Limit Controls, UL 353. r – 12.4 The primary input circuit of a limit con- trol shall have a voltage rating of not more than 53539 120 volts.A limit control,or other protective de- vice,shall interrupt the ungrounded conductor. O CONTINUOUS LIOUIO-TIGHT WELDED CONSTRUCTION 12.5 A control circuit shall be provided with GREASE-TIGHT CONSTRUCTION FIRE ACTUATED DAMPER overcurrent protection rated at not more than f 7 4 7 MULTI-BLADE FIRE ACTUATED DAMPER the value appropriate for the rating of any con- REGISTER / PERFORATED PANEL trol included in the circuit. 12.6 Each limit control shall be accessible. 11. Duct Collars 12.7 A limit control shall be supported in such 11.1 A collar for connection of duct work shall a manner that it and its sensing element will re- be provided as part of the exhaust hood. main in its intended position. 11.2 A collar shall incorporate stops on the in- 12.8 No means shall be provided to render in- terior surfaces if field installed ductwork may in- effective any limit control or to allow operation terfere with the operation of a movable part of of the product without the protection of each of the exhaust hood. the limit controls provided as specified in para- graph 12.3. 11.3 The materials used for duct collars shall comply with paragraphs 7.1 and 7.2. 13. Electrical Enclosure 12. Controls General Manual Controls 13.1 A control unit enclosure shall comply with the Standard for Cabinets and Boxes, UL 12.1 If an electrically powered component, 50, and with the requirements in paragraphs such as a damper or a water supply valve needs to 13.2 — 13.20. operate in order for an exhaust hood to comply with the requirements in Sections 27 — 32, the 13.2 All electrical parts of a control unit shall exhaust hood shall include a manual means for be enclosed to provide protection against con- actuating the electrical component. tact with uninsulated live parts. DECEMBER Y1, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 13 c IXA"LL 6 .. nI>"Li a 1111111 1111111 S3S77 S7S75 O CONTINUOUS LIQUID-TIGHT MELDED CONSTRUCTION CONTINUOUS LIQUID-TIGHT WELDED CONSTRU;TION GREASE-TIGHT CONSTRUCTION GREASE-TIGHT CONSTRUCTION FIRE ACTUATED DAMPER FIRE ACTUATED DAMPER } } } } MULTI—BLADE FIRE ACTUATED DAMPER } } } } MULTI—BLADE FIRE ACTUATED DAMPER 11111111 REGISTER / PERFORATED PANEL 11111111 REGISTER / PERFORATED PANEL ` L EXAMPLE 7 ERAMPLE 9 i C 11111111 57576 S7578 C� CONTINUOUS LIQUID—TIGHT WELDED CONSTRUCTION O CONTINUOUS LIQUID—TIGHT WELDED CONSTRUCTION GREASE—FIGHT CONSTRUCTION GREASE—TIGHT CONSTRUCTION FIRE ACTUATEO DAMPER FIRE ACTUATED DAMPER } } } } MULTI-8LAOE FIRE ACTUATED DAMPER } } } } MULTI—BLADE FIRE ACTUATED DAMPER REGISTER / PERFORATED PANEL IIIIIIII REGISTER PERFORATED PANEL 12 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 EXAXPLE 2 _ EXA"LE / 57571 $35» O CONTINUOUS LIQUID-TIGHT WELDED CONSTRUCTION 0 CONTINUOUS LIQUID-TIGHT WELDED CONSTRUCTION GREASE-TIGHT CONSTRUCTION �- FIRE ACTUATED DAMPER GREASE-TIGHT CONSTRUCTION f� MULTI-BLADE FIRE ACTUATED DAMPER FIRE ACTUATED DAMPER REGISTER / PERFORATED PANEL MULTI-BLADE FIRE ACTUATED DAMPER IIIIIIII II II � II� REGISTER /PERFORATED PANEL EXAIPLL 7 EXAXPLZ 3 . 1 111111 57572 33534 CONTINUOUS LIOUIO-TIGHT WELDED CONSTRUCTION O CONTINUOUS LIQUID-TIGHT WELDED CONSTRUCTION GREASE-TIGHT CONSTRUCTION GREASE-TIGHT CONSTRUCTION �'- FIRE ACTUATED DAMPER �- FIRE ACTUATED DAMPER } } I MULTI-SLAOE FIRE ACTJATEO DAMPER I f MULTI-BLADE FIRE ACTUATED DAMPER I, � , REGISTER PERFORATED PANEL II111111 •REGISTER /PERFORATED PANEL DECEMBER 21,1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 11 i 10.2 A fire actuated damper shall be installed FIGURE 11.1 in the supply air plenum at each point where a supply air duct inlet or a supply air outlet pene- EXAMPLES OF SUPPLY AIR trates the continuously welded shell of the as- PLENUMS SHOWING WHERE sembly. The damper shall be constructed of at DAMPERS ARE REQUIRED least the same gage as the shell. The actuation EXA"LE 1 device shall have a maximum temperature rat- ing of 285°F (141*Q. Supply air plenums that discharge air out their face, rather than out the bottom or into the exhaust hood, and which are isolated from the exhaust hood by the continu- ously welded shell extending to the lower outer- most perimeter of the entire hood assembly, do not require a fire actuated damper. See Figure 10.1 for some examples. Paragraph 10.2 effective January 22,1992 / 10.3 Fire actuated supply air dampers pro- / vided as part of an exhaust hood shall comply with the Standard for Fire Dampers, UL 555, in addition to items B, D, and E of paragraph _ 10.1. 37570 Exception: Fire actuated supply air dampers that comply with items B — G, and are installed in supply$ir plenums that have been subjected to CONTINUOUS LIQUID-TIGHT WELDED CONSTRUCTION ��• the fire tests described in Sections 29 — 32. GREASE-TIGHT CONSTRUCTION FIRE ACTUATED DAMPER r Paragraph 10.3 effective January 22,1992 } } } MULTI-BLADE FIRE ACTUATED DAMPER REGISTER / PERFORATED PANEL t 10 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 9. Provisions for Maintenance and A. Fire actuated dampers shall be provided J Grease Removal with a heat-responsive device and be capable of preventing exhaust duct gas temperatures 9.1 Exhaust hoods shall include means for re- greater than 375°F (191°C) as determined moval of grease and other cooking process during the Abnormal Flare-Up, Fan Failure, contaminants. Fire, and Burnout Tests, Sections 29 — 32. 9.2 Internal parts of the product shall be acces- B. Fire actuated damper assemblies employ- sible for inspection and repair, without the use ing replacement parts, such as fusible links, of special tools. shall be accessible without the use of special tools. 9.3 Grease removal devices shall be provided with all exhaust hoods. If grease filters are pro- C. The load on a fusible link used in a fire ac- vided, the filters shall comply with the Standard tuated damper assembly shall be in accord- for Grease Filters for Exhaust Ducts,UL 1046. ance with the intended use of the fusible link. 9.4 Grease filters shall be installed at an angle not less than 45* from the horizontal and shall D. A manual- or automatic-reset damper be tight-fitting. operating mechanism shall be capable of clos- ing the fire actuated damper after being sub- 9.5 Grease removal devices shall be accessible jected to the cycling test specified in Damper and removable for cleaning without the use of Tests, Section 34. A manual-reset damper special tools. operating mechanism is one that is required to be manually reset after excessive temperature Exception: Grease removal-devices used with ex- in the exhaust hood has caused it to close. All haust hoods that utilize integral water-wash sys- other damper operating mechanisms are con- tems and fire-actuated exhaust dampers, need sidered to be automatic reset. not be removable provided they are subjected to regular cleanings from the water-wash system as E. A fire actuated damper shall remain specified in the manufacturer's instructions,and closed when subjected to the pressure test - do not inhibit the accessibility of any internal specified in Damper Tests. Section 34. parts. F. A spring and a bearing used in the assem- 9.6 All exhaust hoods shall be equipped with a bly of a fire actuated damper shall be of mate- drip tray or trough beneath the lower edge of rial having strength and resistance to atmo- the grease removal devices. The tray or trough spheric corrosion equivalent to an alloy con- shall be kept to the minimum size needed to col- taining not less than 85 percent copper or lect the grease and be pitched to drain to a re- Type 302 or 430 stainless steel. In addition a movable enclosed metal container having a spring shall be of a material having spring capacity not exceeding 1 gallon (3.785 L). properties equivalent to stainless steel con- forming to Specification for Chromium- Exception: Exhaust hoods provided with water- Nickel Stainless and Heat Resisting Steel wash systems need not be provided with a re- Spring Wire, ASTM A313-87. movable,enclosed metal container for collection of grease. G. The materials used in fire actuated damper assemblies shall comply with para- graphs 7.1 and 7.2. The combination of met- als used in the assembly of a damper shall not cause galvanic action that may impair the 10. Fire Actuated Damper function of any part of the assembly. Assemblies Exception: The materials used for the damp- 10.1 Fire actuated exhaust dampers provided ers need not comply with paragraphs 7.1 and ' as part of an exhaust hood shall comply with all 7.2 if the damper complies with the Standard of the following requirements: for Fire Dampers, UL 555. DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 9 } 7. Materials 7.7 Gasket and sealant materials used in an ex- haust hood,as well as in duct collars, damper as- 7.1 The hood and other parts of an exhaust semblies and fittings for hood penetrations, that hood that serve to confine or convey the exhaust may be exposed to cooking smoke and vapor products, including any dampers and structural shall be subjected to Gasket and Sealant, Physi- parts, shall be made of materials equivalent in cal and Immersion Tests, Section 35. strength and fire resistance to Type 302 or 430 stainless steel not less than 0.032 inch(0.81 mm) Exception: Sealants used for aesthetics and/or I thick. cleanability purposes. 7.2 Internal ferrous metal parts, except pipe • and associated fittings subject to a washing agent, shall be made of one of the 300 or 400 se- ries of stainless steel or provided with corrosion protection as specified in Protection Against Corrosion, Section 8. Other ferrous metal parts 8. Protection Against Corrosion may be plain cold-rolled steel not less than 0.042 inch (1.1 mm) thick. 8.1 A ferrous metal part required to be pro- vided with corrosion protection shall be pro- 7.3 Any insulation material installed within an vided with one of the following corrosion- exhaust hood shall not be exposed to cooking protection systems: vapors. Paragraph 73 effective January 22,1992 A. A zinc coating complying with the coat- ing Designation G60 or A60 in Table I of the 7.4 Insulation materials other than electrical Specification for General Requirements for 000* ;' insulation shall have a flame spread rating of 25 Steel Sheet, Zinc-Coated (Galvanized) by the or less when tested in accordance with the Stan- Hot-Dip Process, ASTM A525-87, with not dard for Test for Surface Burning Characteris- less than 40 percent of the zinc on any side, tics of Building Materials, UL 723. Adhesives or based on the minimum single spot test re- cements used in the installation of insulating ma- quirement in this ASTM Designation. The terials shall comply with the above requirements weight of the zinc coating may be determined when tested with the specific insulating material. by any method,but in case of question shall be Paragraph 7.4 effective January 22,1992 established in accordance with the test method in the Test Method for Weight of 7.5 Insulation materials installed within the Coating on Zinc-Coated (Galvanized) Iron or supply air plenums of exhaust hoods shall be Steel Articles, ASTM A90-81. provided with a nonabsorptive facing and shall be secured so as not to sag or interfere with the B. A zinc coating, other than that specified intended passage of air. An adhesive or cement in item A, uniformly applied to an average used to attach such material shall retain its adhe- thickness of not less than 0.00041 inch sive qualities at any temperature the adhesive (0.0104 mm)on each surface with a minimum may attain when tested in accordance with these thickness of 0.00034 inch(0.00864 mm). The requirements and at 0°F (minus 17.8°C). thickness of the coating is to be established-in Paragraph 73 effective January 22,1992 accordance with the test method in the Guide for Measurement of Electrodeposited Metallic 7.6 Asbestos material shall not be used. Coating Thicknesses by the Dropping Test, Paragraph 7.6 effective January 22,1992 ASTM B555-86. 8 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 6.8 An enclosure opening that will not permit 6.10 A part of an outer enclosure that may be entrance of a rod of 3/4-inch (19-mm)diameter removed without the use of a tool, or part of an is acceptable if. outer enclosure that may be removed by the user for access to an operating adjustment is to be dis- A. A probe as illustrated in Figure 6.1 can- regarded; that is, it will not be assumed that the not be made to touch an uninsulated live part part in question reduces the risk of electric when inserted through the opening, and shock. B. A probe as illustrated in Figure 6.2 can- ; not be made to touch film-coated wire when inserted through the opening. FIGURE 6.3 OPENING IN ENCLOSURE FIGURE 6.1 PROBE FOR UNINSULATED LIVE PARTS ANY CONVENIENT LENGTH I INCH DIA. 3 INCH DIA. 2 (12.7mm) 4 (19.1 In M) A A +1 9 3 ENCLOSURE OPENING INCH(14.3mm) INCH R 16 SECTION A-A 4 INCHES H 6 (4.8mm) (101.6mm) k ! PA 130A LIVE PART FIGURE 6.2 SECTION 8-8 PROBE FOR FILM-COATED x WIRE ANY CONVENIENT LENGTH LIVE PART 3/4'(19.1 m)DIA.— ECIOOB 1/2"(12.7mm)01 0 1A U27- __A The opening is acceptable if,with the enclosure, there is no uninsulated live metal part or film- 4'(101.6mm) coated wire(1)less than X inches(mm) from the perimeter of the opening, as well as (2) within PA140A 1/4"(6.4mm)RAD. the volume generated by projecting the perime- ter X inches (mm) normal to its plane. X equals 6.9 An opening that will permit entrance of a five times the diameter of the largest diameter 3/4 inch (19 mm) diameter rod is acceptable rod which can be inserted through the opening, under the conditions illustrated in Figure 6.3. but not less than 4 inches (102 mm). DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 7 ` 5.9 External seams,joints,and penetrations;or TABLE 6.1 that portion of the hood that captures grease MAXIMUM PERMISSIBLE TEST ROD DIAMETERS FOR ENCLO- laden vapors and exhaust gases shall have a SURE OPENINGS liquid-tight continuous weld to the lower outer- . t most edges of the entire hood assembly. Maximum Diameter Exception No. 1: Seams and joints made with a Straight Line Distance Rod that will . : fastening means other than a liquidtight contin- to Moving Part from Pass Through External Plane of the Opening uous weld may be employed in hoods that have Opening, Inches(mm) Inches (mm) been subjected to the Abnormal Flare-Up, Fan Failure, Fire, and Burnout Tests, Sections 29 — 32, with no evidence of the passage of smoke, Less.than 2(50.8) 1/4 (6.4) flame, or vapor through the joint. Such evalua- At least 2 (50.8)but 1i2 (12.7) tions are to be made with the fire sources located less than 6 (152) at positions considered to be the most critical for the purpose of evaluating the joint or seam. At least 6 (152)but 1 (25.4) less than 15(381) Exception No. 2: Penetrations sealed by fit- tings subjected to the Fire and Leakage Tests of Table 6.1 effective January 22,1992 Fittings for Hood Penetrations, Section 36. 6. Accessibility of Uninsulated Live Parts, 6.4 Compliance with paragraph 6.3 is to be de- Film-Coated Wire, and Moving Parts termined by attempting to insert a rod 3 inches (76.2 mm) long and of the diameter specified in Table 6.1 into the openings when the equipment !�" General is assembled. 6.1 Each uninsulated live part or moving part, 6.5 It shall not be necessary to remove a per- such as a belt, coupling, fan, gear, pulley, and manently attached guard to lubricate the shaft that could cause risk of electric shock or in- equipment. jury to persons shall be located, guarded, or en- closed so as to reduce the likelihood of uninten- Uninsulated Live Parts tional contact by service personnel or other persons performing mechanical or electrical 6.6 With reference to paragraphs 6.1 and 6.2, service functions that may need to be performed the following are not considered to be while the product is energized. uninsulated live parts: (1)coils of controllers, re- lays, solenoids, and transformer windings, if the 6.2 A hinged or pivoted panel or cover shall be coils and windings are provided with insulating positioned or arranged so that it is not likely to overwraps;(2)enclosed motor windings;(3)insu- fall or swing due to gravity or vibration in such a lated terminals and splices; and (4) insulated manner as to increase the risk of unintentional wire. contact with the panel or cover,a moving part or an uninsulated live part that could cause injury 6.7 An electrical control component that may to person. require examination, adjustment, servicing, or maintenance while energized, excluding voltage Guarding of Moving Parts measurements, shall be located and mounted with respect to other components and with re- 6.3 With reference to paragraph 6.1 for guard- spect to grounded metal parts so that it is accessi- ing of moving parts, an opening in an enclosure ble for electrical service functions without sub- is not acceptable if a rod of a diameter larger jecting the service personnel to the risk of than that specified in Table 6.1 can enter the electric shock from adjacent uninsulated live opening. parts or to risk of injury from adjacent moving •�`_,j� Paragraph 6.3 effective January 22,1992 parts. 6 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 r 4. Glossary 5.3 A part that may be contacted by the opera- 1 for during intended usage shall be free from I General sharp edges or projections. 4.1 For the purpose of this Standard the fol- lowing definitions apply. 5.4. An adjustable part shall be provided with a locking device to reduce the likelihood of unin- 4.2 ' CIRCUIT, HIGH-VOLTAGE - A cir- tentional shifting. cuit having characteristics in excess of those of a low-voltage circuit. See paragraph 4.3. 5.5 A screw or bolt used to attach a part that is intended to be detached for care or servicing 4.3 CIRCUIT, LOW-VOLTAGE- A circuit shall function as intended following the applica- involving a potential of not more than 30 volts tion of the torque specified in Table 5.1 and rms alternating-current (42.4 volts peak or di- after removal and replacement. rect current), and supplied by a primary battery or by a Class 2 transformer or by a combination TABLE 5.1 of transformer and fixed impedance which, as a unit, complies with all the performance require- MAXIMUM TORQUE REQUIREMENTS FOR SCREWS ments for a Class 2 transformer. 4.4 FITTING-A device intended to rovide Torque, . P Screw Size (mm) Pound-Inches(Nan) a liquidtight seal around penetrations. 4.5 PENETRATIONS - The routing of me- No.8 (4.2) 20 (2.3) tallic piping into or through exhaust hoods or No. 10 (4.8) 25 (2.8) 1/4 Inch (6.4) 100 (11.3) ducts for connection to a fire extinguishing sys- 5116 Inch (7.9) 200 (22.6) tem or waterwash system. 3/8 Inch (9.5) 350 (39.5) 7/16 Inch (11.1) 550 (62.1) CONSTRUCTION 1/2 Inch (12.7) 800 (90.3) 9/16 inch (14.3) 1200 (135.5) 5. Assembly 5.1 An exhaust hood shall include all the essen- tial parts necessary for its intended function 5.6 All parts, controls, and devices.requiring when installed as intended. The equipment may maintenance shall be accessible. Parts intended be shipped as subassemblies. to be removed for maintenance shall not require realignment following removal and restoration 5.2 An exhaust hood that is not assembled by to secure their intended relationship with other the manufacturer as a unit shall be constructed parts of the product. Special tools or equipment so that each subassembly is capable of being in- required for maintenance by the operator shall corporated into the final assembly without re- accompany the product to the user. quiring alteration by the installer.Subassemblies that must bear a definite relationship to each 5.7 The product shall incorporate provisions other for the intended operation of the product for support or attachment to the building shall be arranged and constructed to permit structure. them to be incorporated into the complete as- sembly only in the correct relationship with each other, without need for alteration or 5.8 Joints between parts that confine a washing realignment. agent shall be mechanically secured and sealed. \1 I DECEMBER 21, 1990 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 5 INTRODUCTION 2. General 1. Scope Units of Measurement 1.1 These requirements cover exhaust hoods 2.1 If a value for measurement is followed by a intended for placement over commercial cook- value in other units in parentheses, the second ing equipment. Exhaust hoods with and without value may be only approximate. The first stated exhaust dampers are covered by these value is the requirement. requirements. References 1.2 Exhaust hoods with exhaust dampers are intended to have the exhaust damper automati- 2.2 Any undated reference to a code or stan- cally close to prevent exhaust duct gas tempera- dard appearing in the requirements of this stan- tures from exceeding 375°F (191'C). dard shall be interpreted as referring to the latest edition of that code or standard. 1.3 All exhaust hoods are intended for use with fire extinguishing system units. 1.4 Exhaust hoods covered by these require- 3. Components ments may be provided with manually or auto- matically operated cleaning or washing systems. 3.1 Except as indicated in paragraph 3.2, a IThese requirements do not cover the fire extin- component of a product covered by this stan- guishing aspects of such systems. dard shall comply with the requirements for that component. See Appendix A for a list of stan- 1.5 Exhaust hoods covered by these require- dards covering components generally used in ments are intended for installation in accord- the products covered by this standard. ante with (1) the Standard for the Installation of Equipment for the Removal of Smoke and Grease-Laden Vapors from Commercial Cook- 3.2 A component need not comply with a re- ing Equipment, NFPA 96, and (2) the National quirement specified in its specific standard if Electrical Code, NFPA 70, and (3) other codes 1t: such as the Basic National Mechanical Code (BOCA), the Standard Mechanical Code A. Involves a feature or characteristic not (SBCCI), and the Uniform Mechanical Code needed in the application of the component in (ICBO). the product covered by this standard, or 1.6 These requirements do not cover products B. Is superseded by a requirement in this rated over 600 volts. standard. 1.7 These requirements do not cover evalua- tion of the exhaust hoods with respect to their 3.3 A component shall be used in accordance grease extraction efficiency. with its recognized rating established for the in- tended conditions of use. 1.8 A product that contains features, charac- teristics, components, materials, or systems new or different from those in use when the standard 3.4 Specific components are recognized as was developed, and that involves a risk of fire, being incomplete in construction features or re- electric shock, or injury to persons, shall be eval- stricted in performance capabilities. Such com- uated using the appropriate additional compo- ponents are intended for use only under limited nent and end-product requirements as deter- conditions, such as certain temperatures not ex- 4 mined necessary to maintain the level of safety ceeding specified limits and shall be used only for the user of the product as originally antici- under those specific conditions for which they �;` pated by the intent of this standard. have been recognized. 4 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 FOREWORD A. This Standard contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Standard. These requirements are based upon sound engineering - principles, research, records of tests and field experience, and an appre- ciation of the problems of manufacture, installation, and use derived from consultation with and information obtained from manufacturers, users, inspection authorities, and others having specialized experience. They are subject to revision as further experience and investigation may show is necessary or desirable. B. The observance of the requirements of this Standard by a manufac- turer is one of the conditions of the continued coverage of the manufac- turer's product. C. A product which complies with the text of this Standard will not nec- essarily be judged to comply with the Standard if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product employing materials or having forms of construction dif- fering from those detailed in the requirements of this Standard may be examined and rested according to the intent of the requirements and, if found to be substantially equivalent, may be judged to comply with the Standard. 1 E. UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the man- ufacturer or any other party. The opinions and findings of UL represent its professional judgment given with due consideration to the necessary limitations of practical operation and state of the art at the time the Stan- dard is processed. UL shall not be responsible to anyone for the use of or reliance upon this Standard by anyone. UL shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of or reliance upon this Standard. F. Many tests required by the Standards of UL are inherently hazard- ous and adequate safeguards for personnel and property shall be em- ployed in conducting such tests. low .l a DECEMBER 21, 1990 . EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT—UL 710 3 Electrical Tests 37. Overvoltage and Undervoltage Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 38. Dielectric Voltage-Withstand Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 39. Short-Circuit Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . .41 Control Unit Tests 40. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 41. Heating Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Marking Test 42. Permanence of Marking Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 MANUFACTURING AND PRODUCTION TEST 43. Production Dielectric Voltage-Withstand Test . . . . . . . . . . . . . . . . . . . . . . . . .46 MARKING 44. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 45. Elevated Air Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 46. Cautionary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 --�, INSTALLATION AND OPERATING INSTRUCTIONS 47. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 APPENDIX A Standards for Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A1 21 EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT-UL 710 DECEMBER 21, 1990 TABLE OF CONTENTS -mil FOREWORD J i INTRODUCTION ' 1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 4. Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 CONSTRUCTION 5. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 6. Accessibility of Uninsulated Live Parts, Film-Coated Wire, andMoving Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 7. Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 8. Protection Against Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 9. Provisions for Maintenance . . . . . . . . . . . . . . . . . . . . . . 10 10. Fire Actuated Damper Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11. Duct Collars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 12.-Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 13. Electrical Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 14. Field-Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 15. Internal Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 16. Separation of Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 17. Bonding for Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 18. Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 19. Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 20. Lighting Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 21. Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 22. Switches and Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 ELECTRICAL SPACINGS 23. High-Voltage Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 24. Low-Voltage Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 PERFORMANCE 25. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 26. Thermostat Calibration Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 27. Temperature Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 28. Cooking Smoke and Flare-Up Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 29. Abnormal Flare-Up Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 30. Fan-Failure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 31. Fire Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 32. Burnout Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 33. Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 34. Damper Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 35. Gasket and Sealant Physical and Immersion Tests . . . . . . . . . . . . . . . . . . . . . .39 36. Fire and Leakage Test of Fittings for Hood Penetrations. . . . . . . . . . . . . . . . .40 ' 1 i U� Underwriters Laboratories Inc.® An independent,not-for-profit organization testing for public safety l December 21, 1990 STANDARD FOR EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT UL 710, FOURTH EDITION Accompanying this transmittal notice is a copy of the fourth edition of UL 710. A CHANGE IS INDICATED BY A VERTICAL LINE IN THE MARGIN ON THE AFFECTED PAGE. THIS EDITION OF THE STANDARD IS NOW IN EFFECT EXCEPT FOR THOSE PARAGRAPHS, SECTIONS,TABLES,AND FIGURES HAVING FUTURE EFFECTIVE DATES AS INDICATED IN THE SMALL PRINT NOTES FOLLOWING THE AFFECTED ITEMS. THE CURRENT REQUIREMENTS IN EFFECT FOR THE REQUIREMENTS HAVING FUTURE EFFECTIVE DATES ARE LOCATED IN THE BACK OF THE STANDARD. New product submittals made prior to a specified future effective date will be judged under all of the requirements in this standard unless the applicant specifically requests that the product be judged under the current requirements. However, should the applicant elect this option, it should be noted that compliance with all the requirements in this standard will be required as a condition of continued Listing or Classification and Follow-Up Services after the effective date and understanding of this should be signified in writing. The requirements in this standard are substantially in accordance with UL's bulletins on this subject dated June 28, 1989 and November 22, 1989. These bulletins are now obsolete and may be discarded. Revised and/or additional pages may be issued from time to time. Subscribers to UL's services in the area covered by this standard will receive these revised and/or ad- ditional pages automatically. Others may receive such pages by subscribing to UL's subscription serv- ice for revisions. See UL's CATALOG OF STANDARDS FOR SAFETY for a description of the revisions subscription service, the cost of the service for this standard, and ordering information. A PRODUCT INDEX of UL Standards for Safety is also available. The index provides more than 3,000 examples from the more than 12,000 specific products that are covered by UL's Services and Standards for Safety. The index aiso includes an alphabetical listing of keywords of each title of each standard. A STANDARDS GLOSSARY is also available. The glossary is a compilation of terms and their defi- nitions taken from the glossaries of over 500 UL Standards for Safety. To obtain a free copy of UL's CATALOG OF STANDARDS FOR SAFETY contact any of UL's Offices. Ordering information for the PRODUCT INDEX and the STANDARDS GLOSSARY is included in UL's CATALOG OF STANDARDS FOR SAFETY. Telephone orders for UL's publications may be charged to your Visa, MasterCard, or American Ex- press account. z , Ju1.24,192 11:45 CAN VENT TEL 4032722247 P. 2 AMOK CHAR- B RO N-E'R 30 �i�r -Lfz- . . r. ,E . _... o vE n� { TABLE 2 OBSERVATIONS AND OPERATING PARAMETERS CAN VENT SYSTEM 200 CANADIAN VENTILATOR INC. June 25, 1992 Calgary, Alberta File Number 5545/92-1 The Can Vent System 200 was tested in conjunction with a commercial radiant charbroiler (Garland) and a commercial flat top grill (Garland) on June 25, 1992- The commercial radiant charbroiler (Garland) was rated for 75,000 BTU with a 690 square inch cooking area. The commercial flat top grill(Garland)was rated for 33,333 BTU with a cooking area of 888 square inches. The meat used consisted of frozen 1/4-pound hamburger patties with 23% tallow fat with no filler. Testing was conducted over a continuous eight-hour period under the following cooking protocol: - Fifty pounds of frozen hamburger patties were cooked over the first two hours in the following manner: Eight frozen patties cooked simultaneously for five minutes total time. Three minutes on the first side, two minutes on the second side. Cooking was continuously alternated between the radiant charbroiler and the flat top grill every five minutes. - Fifty pounds of frozen hamburger patties were cooked over the next four hours in the following manner: Same as above but alternating between the radiant charbroiler and the flat top grill every ten minutes. - Fifty pounds of frozen hamburger patties were cooked over the final two hours following the same cooking protocol that was utilized during the first two hours. The testing protocol was developed to best simulate a high volume unit with two peak meal times. c TABLE 1 SUNMIARY OF SOURCE E MION TEST RESULTS CANVENT 200 CANADIAN VENTILATOR INC. June 25, 1992 Calgary, Alberta File Number 55092-1 Parameter Test One Test Period 09:20-17:20 Average Gas Temperature - °C 94 Average Gas Velocity - m/s 12.84 Aw Dry Effluent Flow Rates - m'/s 0.28 Water Concentration - mole percentage 3.2 Particulates: Organic Fraction (Grease) - g/kg 0.002 - mg/m' (dry) 3.11 - mg/m' (wet) 3.01 - kg/h 0.003 Isokinetics - % 98.2 * at 21.1°C and 760 mmHg, dry basis. WESTERN RESEARCH, Calgary, Alberta ti INTRODUCTION A source emission survey was conducted by Western Research on the CanVent System 200, as utilized in conjunction with a commercial radiant charbroiler(Garland)and a commercial flat top grill (Garland). The purpose of the testing was to determine the concentration and mass emission rate of the organic fraction (grease). DISCUSSION One eight-hour continuous test was conducted with the following flue gas parameters being determined: 1. Velocity profiles/temperature and static pressure 2. Organics/water concentration 3. Dry gas composition No problems were encountered during the testing or subsequent analysis. CALCULATIONS AND RESULTS The results of the testing are summarized in Table 1, as well as in the appendices. Appendix A contains the computer output, while Appendix B contains copies of the field data sheets. The stack gas velocity profiles and point by point isokinetics are contained in Appendix C and Appendix D respectively. M=ODS AND PROCEDURES Testing was conducted according to EPA Method 202: "Determination of Condensible Particulate Emissions from Stationary Sources." Only the organic fraction (grease) is reported in the results. The sampling train used to conduct the particulate testing was calibrated during May, 1992. The pitot tubes used to determine the stack gas velocity were last calibrated during January, 1992. TABLE OF CONTENTS INTRODUCTION DISCUSSION CALCULATIONS AND RESULTS METHODS AND PROCEDURES TABLE 1 - Summary of Emission Test Results TABLE 2 - Observations and Operating Parameters APPENDIX A - Computer Output APPENDIX B - Field Data Sheets APPENDIX C - Velocity Profiles APPENDIX D - Point by Point Isoldnetics BI LBOVAR Environmental Services Western Research August 18, 1992 Canadian Ventilator Inc. A23 - 416 Meridian Road S.E. Calgary, Alberta T2A 1X2 Attention: Mr. Cam Cote Dear Mr. Cote: Subject: Source Emission Survey on the Can Vent System 200 Western Research File Number 5545/92-1 The attached report presents the results of the EPA Method 202,8-hour continuous source emission survey conducted on the Can Vent System 200, as operated in conjunction with a gas-fired commercial radiant charbroiler(Garland)and a gas-fired commercial flat top grill(Garland),with the a� products of combustion from both units exhausted through the hood. Effluent was generated by cooking 150 lbs. of frozen '/4-lb. hamburger patties, consisting of 23% tallow fat and no fillers, continuously for 8 hours, alternating between the charbroiler and the grill. The test yielded the following results: Particulate: Organic Fraction (Grease) - mg/m' (dry) 3.11 - mg/m' (wet) 3.01 - kg/hr 0.003 Should you have any questions regarding the survey results, please contact us at your convenience. Yours truly, WESTERN RESEARCH /&",WO Darcy B. Morgan, C.E.T. Senior Field Technologist Testing Analytical Services DBM/ws 1313 - 44 Ave. N.E., Calgary, Alberta Canada T2E 61_5 Telephone (403) 291-1313 FAX (403) 250-2340 ETL Testing Laboratories, Inc. Report No. SOS332 Re-Issued: 11/12/92 Revised: 12/8/92 CONCLUSION NO. 1 A sample of the Model CVM80 has been tested and examined and found to comply with the applicable requirements of the Standard for Exhaust Hoods for Commercial Cooking Equipment (ANSI/UL-710) and Equipment For The Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment, NFPA 96, including chapter li). R u by: I n Charge of Tests: Allen L. Pirro, P.E. Daniel J. Rlaben Manager Project Engineer ETL Testing Laboratories, Inc. Report No. SOS332 Re-Issued: 11/12/92 Revised: 12/8/92 Ask PERFORMANCE NO. 1 A sample of the Model CVN Kitchen Ventilation Hood was tested to determine compliance with the requirements of the Standard for Exhaust Hoods for Commercial Cooking Equipment (ANSI/UL-710) . The results complied with the applicable requirements of the referenced standard. All test data results will be maintained under ETL Order No. +S804S-203. ETL Testing Laboratories, Inc. Report No. 505332 Re-Issued: 11/12/92 Revised: 12/8/92 KITCHEN VENTILATOR HOOD MODEL NO. CVM 80 PHOTO NO. 1 General - Photo No. 1 shows an overall view of the self supporting kitchen ventilator hood. 1. Kitchen ventilator - The unit is fabricated of 24 gauge steel and 304 stainless steel. For construction details, see Pages I1 thru I10. The following are the overall dimensions: Model No. Outside Length Width Height CVM65 7' 4' 811" CVM85 816" 4' 811" CVM100 1016" 4' 8.1" 2. Hood - 304 stainless steel, 18 gauge continuously welded fabrication. See Photo No. 3 for details. 3. outside Panels - Double wall, 24 gauge steel, and 24 gauge 304 stainless steel sandwich insulation, JPS Glass Fabrics, insulbatte, style 1031; 1 inch glass fiber, temperature rating 1200'F. 4. Push Button Switch (2 provided, not shown) - Sprecher & Schuh, Part No. DTL3LE10; rated 600 volts, 10 amps (ETL Code 4) . ETL Testing Laboratories, Inc. Report No. 505332 Re-Issued: 11/12/92 Revised: 12/8/92 A"k CONSTRUCTION PRODUCT COVERED• Commercial Kitchen Ventilators, Model Nos. CVM65, CVM80 and CVM100. PRODUCT DESCRIPTION: The product covered by this report is a series of commercial kitchen ventilators that are self contained and free standing. The units are not connected to exterior ducts or make up air although they may be vented by standard heating duct. They contain a series of filters that remove grease. The product is intended to be permanently connected to the supply source. ELECTRICAL RATINGS Models are rated 208/230 volts, 60 hertz, single phase, 20 amperes; 110 volts, 60 hertz, single phase, 35 amps; 208/230/460 volts, 60 hertz, three phase, 9.4/5 amps. GENERAL: Construction Details - For specific construction details, reference should be made to the following photographs and descriptions. All dimensions are approximate unless otherwise specified. In addition to the specific construction details described in the photographs, the following general requirements also apply. 1. Snacincs - The following spacings are maintained through air and over surfaces of insulating material between current carrying parts of opposite polarity, and between current carrying parts and dead metal parts. Maximum Potential Minimum Spacings, inches Involved. volts Throuch Air Over Surface To Enclosure 0 - 300 Less than 2000 VA 1/8 1/4 1/4 0 - 150 More than 2000 VA 1/8 1/4 1/2 51 - 300 1/4 3/8 1/2 300 - 600 3/8 1/2 1/2 2. Mechanical Assembly - Components such as switches, fuseholders, connectors, wiring terminals, and display lamps are reliably mounted and prevented from shifting or rotating by lockwashers, starwashers, use of multiple screws or bolts. 3. Corrosion Protection - All ferrous metal parts are suitably protected against corrosion by painting, plating or the equivalent. REPORT C ETL TESTING LABORATORIES, INC. INDUSTRIAL PARK CORTLAND, NEW YORK 13045 Order No. 58045-S-5 Date: April 5, 1991 Revised: December 8, 1992 REPORT NO. 505332 INSPECTION, TESTS, AND EVALUATION OF COMMERCIAL KITCHEN VENTILATOR RENDERED TO CAN VENT SYSTEMS WELLS MANUFACTURING COMPANY VERDI, NV 89439 ,GENERAL This report gives the results of the inspection, tests, and evaluation of Commercial Kitchen Ventilators for compliance with the requirements of the Standard for Exhaust Hoods for Commercial Cooking Equipment (ANSI/UL-710) and Equipment For The Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment, NFPA 96. This investigation was authorized by a letter from Mr. Cam Cote, dated 1/11/91, and was begun in February 1991 and completed In April 1991, additional testing under NFPA 96, including Chapter 11 was completed in October 1992. The sample was provided by the client and tested at the client's facility. EXHAUST HOODS FOR COMMERCIAL COOKING EQUIPMENT (CATEGORY 163) EQUIPMENT FOR THE REMOVAL OF SMOKE AND GREASE-LADEN VAPORS FROM COMMERCIAL COOKING EQUIPMENT (CATEGORY 215) Participant: Can Vent Systems Wells Manufacturing Company 2 Erick Circle Verdi, Nevada 89439 Manufacturer: Franke Contract Group 685 East Glendale Ave. Sparks, Nevada 89431-5812 An bidependent otpmhetion tearing for safety,pwfatrotse.and eerd tWn. AN eenAww wWerb"n sW4W to the ferowkW �ae�e1 pak r. MOers we rAmd tad for erahaiw the of the Gomm to wheat they we eddnewd. Thar 4p�i Wome Li oubjW to the edegaeey aed wpreeMtetM chwwW of the eempbe end to the sowipahenavensM of tM taco. aeanrnsdem a surveys weds. Me gaetede"beta wpeete w we of M's neon r peradtted eaoept • eap esay aYrindeed by ETL M wdtbt�. STEP 10 NOTE: 1.) SEE OPERATION MANUAL FOR ADDITIONAL INFORMATION. Z) USE SUPPLIED CAULK ON INSIDE OF ALL HOOD AREAS. RIGHT WALL ASSEMBLY ROOF PANEL LEFT WALL ASSEMBLY 42' �L R TOP BACK MIN. PANEL MIDDLE BACK eA�'+ PANEL BOTTOM BACK PANEL BACK PANEL TRIM L—ADJUST REAR LEGS TO HAVE A MIN. GAP OF 42' BETWEEN MIDDLE BACK PANEL AND ROOF PANEL. LOWER BACK AND MIDDLE PANELS WILL REST ON SPACERS WHILE LEFT AND RIGHT WALL ASSEMBLIES WILL RISE TO THE MIN. CLR. INSTRUCTIONS: 1.) Ajust reor legs on the Left and Right Wall Assembliess to have a min. gap of 42' between Middle Back Panel and Bottom Back Panel. (See Above.) The Bottom and Middle Panels will rest on spacers (not provided) while the Wall Assemblies are being raised up. 2.) Prior to installing the Top Back Panel, insert the Back Panel Trim an the Panel and temporarily hold in place. 3.) Insert Top Back Panel into groove provided on the Right Wall Assembly, then insert Back Panel Trim into Left Wall Assembly. (See illustration above.) 4.) Lower rear legs to remove ail clearances. 5.) Screw oil (3) Back Panels in place and remove spacers. PARTS REQUIRED: DESCRIPTION OTY. Top Bock Panel. 1 u8 x 3/4' Sheet Metal Screws. 12 STEP 9 LEFT VENT DUCT ROOF VENT DUCT RIGHT VENT DUCT MOTOR AND FAN ASSEMBLY FILTER BOX ANSUL SHOWN WITHOUT TANK-ENCLOSURE FIRE SUPPRESSION FOR CLARITY. CONNECT CONDUIT TO MOTOR JUNCTION 9 BOX BOLT IN POSITION Li HERE TOP VIEW ROOF VENT DUCT (SHOWN WITHOUT ROOF PANEL) BOLT MOTOR AND FAN ANSUL ASSEMBLY TO FRONT TANK-ENCLOSURE TCHANNEL HERE. ROOF PANEL MOTOR AND FAN ASSEMBLY FRONT PANELS INSTALLED LAST. CONNECT CONDUIT RIGHT SIDE WALL TO MOTOR JUNCTION BOX. ASSEMBLY CONNECT AIR SWITCH FILTER BOX HOSE TO FILTER BOX. s OPTION: WHEN USING GAS FI OPTION EQUIPMENT, INSTALL WHEN USING GAS FIRED PVC ELBOW. EQUIPMENT, INSTALL BLOWER HOSE BETWEEN BLOWER AND HOOD HOOD ASSEMBLY COVER AND PIPE. MIDDLE BACK PANEL LEFT SIDE WALL ASSEMBLY LOWER BACK PANEL FRONT VIEW kVSTRUCn0NS: FIRE SUPPRESSION SYSTEM NOT SHOWN FOR CLARITY. SEE STEP NO.8 FOR INSTALLATION INSTRUCTIONS. 1.) Mount Motor and Fan Assembly into place. Bolt Pedistal onto channel as shown above. 2.) Connect motor junction box to conduit. 3.) Connect fan to Left Vent Duct. 4.) Connect Air Switch hose to Filter Box. 5.) When using gas fired equipment, Install Blower Hose and PVC elbow, as noted above. ,l, PARTS REOUIRED, DESCRIPTION OTY. Motor and Fan Assembly. 1 114' x 2' UNC bolt. 1 1/4' UNC nut. 1 STEP 8 LEFT VENT DUCT ROOF VENT DUCT RIGHT VENT DUCT CONNECTION TO PIPE ON ROOF VENT DUCT. FILTER BOX CONNECTION TO HOOD ASSEMBLY. 8 MOUNT ANSUL FIRE SYSTEM BOX TOP VIEW ROOF VENT DUCT (SHOWN WITHOUT ROOF PANEL) CONNECTION TO PIPE ON ROOF ROOF PANEL VENT DUCT. RIGHT SIDE WALL CONNECTION TO ASSEMBLY HOOD ASSEMBLY. FILTER BOX MOUNT ANSUL FIRE SYSTEM BOX. a HOOD ASSEMBLY MIDDLE BACK PANEL LEFT SIDE WALL ASSEMBLY LOWER BACK PANEL FRONT VIEW INSTRUCTIONS: 1.) Complete Installation of Fire Suppression system. A.) Mount Ansul Fire Suppression Tank-Enclosure Box as per Ansul requirements. B.) Complete connection to piping on Roof Vent Duct. C.) Complete piping to Mood Assembly. PARTS REQUIRED: DESCRIPTION CITY, Ansul Tank-Enclosure. 1 Piping. As Req'd. Union 2 Elbow 3 STEP GROOVES ON TOP OF LEFT AND RIGHT WALL ASSEMBLIES. PIPING INTO HOOD ASSEMBLY THRU SIDE WALL. ® ,O, ROOF PANEL I� I� I� ROOF VENT DUCT WITH FIRE SUPPRESSION PRE-MOUNTED. INSTRUCTIONS: 1.) Slide Roof Vent Duct thru hole provided on Roof Panel prior to installing Roof Panel. Temporarily hold in place. 2.) Slide Roof Panel into place from Front into grooves provided on the top of Left and Right Wail Assemblies. 3.) Complete installation of Roof Vent Duct by using uO sheet metal screws onto the top of the Left Vent Duct. just previously installed. 4.) Thread piping on the Roof Vent Duct into union provided on Filter Box Assembly and tighten. 5.) Install piping to Mood Assembly thru side wall. PARTS REQUIRED: DESCRIPTION OTY. Roof Panel 1 Roof Vent Duct 1 sd x 3/4' sheet metal screws d STEP 6 o� SEE DETAIL BELOW FOR CONNECTION. RIGHT VENT DUCT LEFT VENT DUCT CONNECTION TYP. 3 PLCS. SLIPS VENT DUCT TYP. 2 PLCS. LEFT AND RIGHT SIDE WALL ASSEMBLIES DRIVES TOP VIEW wsTRUCnQNS: U Place Left Vent Duct into Left Side Wall Assembly Exhaust Air Inlet. Have slips installed and insert rear drive cleat. 2.) Place Right Vent Duct into Right Side Wall Assembly Exhaust Arc Inlet. Have slips installed and insert rear drive cleat. 3.) Pull Ducts outward until) center joint con be started. then push Inward to complete joint. Install remaining drive cleats. PARTS REQUIRED: DESCRIPTION OTY. Slips 6 Drives 6 Left Vent Duct 1 Right Vent Duct 1 S7-Sp 5 A HEO RESSION ASSEMBLY, TO PIL TER 80 M Fll TER BOX ATTACH UNION ON 1 TO PIPE ON H000 ASSEMB BOX Y. HOOD ASSEIyBL Y \ \ _ I tt Instal! Filter gox into A Position: .l insert on Hood as proviaec! 8.I hrecC aawn with lnu ""Y ,,,v,c, ea' alms in paaitian. Fitter pipe. attached d. Box. on .) Tighten HOOa Union Filter Box r Assembly. into union proviaeo an OVe. after s in position as shown QESCRP ON Filter Box 114 UNC nuts ,_ 10 STEP 4 BACK FILLER e° SECTION 1 I ems' HOOD ASSEMBLY BACK FILLER SECTION RESTS ON HOOD ASSEMBLY. NO CONNECTION. BACK FILLER SECTION 1/8' BLIND RIVETS MIDDLE BACK PANEL WSTRUCTIONS: 1.) install stainless steel Back Filler Section. Use 1/8' blind rivets provided to fasten to Middle Back Panel. Back of Back Filler Section rests on Hood Assebly. See diagram above. PARTS REQUIRED: DESCRIPTION QTY. Back Filler Section 1 Blind Rivets 4 STEP 3 INSERT PANELS INTO GROOVE PROVIDED ON RIGHT WALL RIGHT WALL ASSEMBLY. ASSEMBLY SLIDE PANELS DOWN GROOVE PROVIDED ON LEFT WALL ASSEMBLY. LEFT WALL ASSEMBLY MIDDLE BACK PANEL OPTIONAL LOWER BACK PANEL 6' SPACERS (NOT PROVIDED) SEE DETAIL BELOW END WALL ASSEMBLY LOWER PANEL 6' SPACER KEEP SPACER HEIGHT SAME AS LEG HEIGHT. FLOOR DETAIL INSTRUCTIONS: 1.) Set spacers (not provided) on floor, equally spaced, between the rear of Right and Left Wall Assembly's. Keep in-line with grooves provided on Waits. (See diagram above.) 2.) Install Lower Ponal first. Insert Panel into groove on the Right Wall Assembly slightly above the groove on the Left Wall Assembly. Slide the Panel down the groove on the Left Wall Assembly and let it rest on the spacers. 3.) Install Middle Ponal similar to the Lower Panel in step no.2 above, Resting it on the top of the Lower Panel. PARTS REQUIRED: A101110k DESCRIPTION OTY. Lower Back Panel 1 Middle Back Panel 1 6' Spacers 2 STEP 2 BOLT HOOD ASSEMBLY TO FRONT CHANNEL ON LEFT AND RIGHT SIDE —71 OPTIONAL I BACK OF HOOD ASSEMBLY RESTS ON REAR CHANNEL ee i i i 00"k HOOD ASSEMBLY� FRONT CHANNEL i --REAR CHANNEL OOD ASSEMBLY DETAIL INSTRUCTIONS: 1.) Insert back of Hood Assembly into rear Channel. 2.) Loosely bolt Hood Assembly onto Front Channel. 3.) Using a pipe clamp. pull Right and Left Side Wall Assemblies together, removing all clearances. 4.) Level L True the Assembly. 5.) Bolt right side of Front Channel in place. 6.) Tighten left side of Front Channel in position. 7.) Tighten Hood Assembly bolts in position. PARTS REDUIRED. DESCRIPTION QTY. Hood Assembly. 1 5/16 UNC X 314' bolts. 4 5/16 flat washers. 4 5/16 UNC nuts. 4 STEP 1 7-5/16 UNC X 3/4' ` SIDE WALL NUTS AND BOLT"'" `� ASSY'S --� CHANNEL I ASSEMBLY OPTIONAL LEFT SIDE WALL ASSEMBLY / °° L BRACKET RIGHT SIDE WALL ASSEMBLY CHANNELS - FRONT AND REAR A WSTRUCTIONS: 1.) Stand Right and Left Side Wall Assemblies upright. 2.) Bait rear Channel in place with flat of Channel toward front of unit. 3.) Install front Channel and loosely bolt left side in place. Note: Do Not bolt right side at this time. 4.) Spread right side out approximately 1'. PARTS REQUIRED: DESCRIPTION OTY. Right Side Wall Assembly. 1 Left Side Wall Assembly. 1 1' x 2' Channels. 2 5/16 UNC X 3/4' bolts. 6 5/16 flat washers. 6 5/16 UNC nuts. 6 CANVENT SYSTEM 200 CANOPY INSTALLATION MANUAL r START UP/OPERATION INSPECTION Check box after inspection: 0 Safety features and parts identified. Baffle filter and grease pan removal and cleaning methods. demonstrated. Front air screen removal and cleaning methods demonstrated. Locations of all reset buttons shown. 0 Proper hood operation demonstrated. 0 Discuss service intervals and provide list of local authorized service technicians. 0 Explain warranty, return copies to office and factory. Front air screen removal and cleaning methods demonstrated Inspection Notes:------------------------- ----__.�.�_— ----------------------------------------------------------------------------- ° .. Above inspections performed by: Owner, manager, supervisor: (Name) AUTHORIZED COMPANY Print name Date— Time In Time Out Signed Thank you for your help. This information is For Factory Use Only used to evaluate our efforts in maintaining the highest quality product for our customer. Above information reviewed by---------------------- sk 2 Erik Circle, P.O. Box 280 Verdi, NV 89439 REGISTRATION CHECKOUT CARD (702)345-0572 FAX: (702)345-0569 Model No. Serial No. Electrical Specs Business Name___ —Address City_ -----—_State _Zip__N_N__�Phone( ) ------- ---------- --- OwnersName------------------------Address------------------------------------- City......... .......State ______Zip_ ------Phone( ) Purchased From--------------------- Address___ __________________________ City___________________State______—Zi,p______N__r Phone( ) ------------------ TYPE OF BUSINESS (Check One Only S.I.C.* New Establishment A.___Family Style Restaurant H.---Snack Bar/Deli B.___Fine Dining I.___Ice Cream Store Replacing Equipment C. --Quick Service Restaurant J.---School D.---Hotel/Motel _ K.___Hospital/Nursing ,.„___Convenience Store/Grocery L.__Government/Military Adding Equipment Supermarket M.---Other G.---Cocktail Lounge INSTALLATION INSPECTION Power Supplied Volts Phase Amps Check box after inspection: Power supply matches rating plate. All electrical connections are tight and covers are in place. 0 Set screws in fan are tight and fan is properly positioned. 0 Fan rotation is correct. All filters and baffle plates re placed correctly. 0 All safety interlocks perform properly. Cooking equipment type, rating and location comply with all applicable codes and requirements. Ducting is of a proper diameter, length and resistance. 0 Ansul system has been commissioned by an authorized Ansul Service Center. MANUFACTURER OF QUALITY RESTAURANT VENTILATION EQUIPMENT ConVent 200 - Operation and Maintenance Manual 00w DATE 'A' PORT 'B' PORT 'C' PORT FILTERS REPLACED SIGN. A 0 A 1 A 71B 5 B A A >1B B B >1B A >---�B B A >1B A >118 B A A A A A A B A >1B A B B A A >1B B B >1B >1B A B A A A B B A >1B A B B A A A $ 8 B A A A ,e NOTE ALL READINGS - INCHES OF WATER COLUMN. A - INITIAL READING B - FINAL READING DATE VISUAL INSP. LOW AIR HIGH AIR CLEANING DATE VISUAL INSP. LOW AIR HIGH AIR CLEANING DATE VISUAL INSP. LOW AIR HIGH AIR CLEANING DATE VISUAL INSP. LOW AIR HIGH AIR CLEANING CanVent 200 - operation and Maintenance Manual 8. Lock out main power supply to unit. 9. Remove filter bog covers. 10. Remove all filter. 11. Clean filter bog, entire hood and blower section to bar metal removing all greasy afid oily sludge. 12. Do not use flammable solvents or other flammable cleaning aids. 13. Care shall be taken not to apply cleaning chemicals on fusible .links or other detection devices of the automatic extinguishing system and fire damper. 14. Compare values for all filters with the acceptable values stated in the log book. 15. Replace all filters which have acceptable values into their proper position within the filter bank. 16. Install -new CanVent filters in place of any filters which had non-acceptable values into their proper position within the filter bank. 17. Check condition of all filter bog door seal gaskets. --Replace if .even slightly damaged. 18. Replace filter bank doors and tighten to 7 lbs. torque. C — B-- A FINAL "' FILTER BOX DIAGRAM CanVent 200 - Operation and Maintenance Manual Test Safety Interlocks as follows: 1. Turn unit on, then remove air switch sensor hose from filter bank, unit should shut down within 30 seconds. a. If unit continues to operate, call an authorized service company. 2. Replace hose. 3. Remove baffle filters. 4. Remove air equalizer plates 5. Remove test plate. Insert part # 48602. 6. Turn unit to "Run". 7. Place test plate in position. 8. Verify unit continues to run. 9. Move test plate to "shut Off" position. 10. Verify unit shuts off. AGW a. If unit does not shut off, call an authorized service company. 11. Replace air equalizer plates. 12. Replace baffle filters. 13. Complete log report. Filter Service - Minimum of once every three months 1. Shut off unit. 2. Remove fasteners for test port "A" . 3. "Zero" manometer. 4. Install manometer line on test port "A". 5. Start unit. 6. Enter value in log under test port 7. Repeat above steps for test ports "B" and "C" . "' CanVent 200 - Operation and Maintenance Manual Operation To operate the hood system, simply depress the start switch and hold in for five seconds. During this time period, the unit verifies proper air flow before allowing continued operation. After this five second delay period, the unit will operate normally unless adequate air flow is not established. 1 . The hood will operate normally unless: A. The fire suppression system activates. B. The exhaust air flow system is disrupted. 2. Fire suppression system actuation: If the fire suppression system is discharged, it shall be recharged immediately only by an ANSUL- authorized distributor according to the ANSUL R102- Design, Installation, Recharge and Maintenance Manual (ANSUL P/N 79973) . 3. Air flow disruption: If the air flow is disrupted, the exhaust air vacuum switch will turn off and the hood will not operate until the cause for the disruption is corrected. Obstructions can be caused by: A. Clogged filters. Inspect all filters and replace as required per filter service method on pages 2 and 3. B. Air exhaust duct blocked. Remove blockage. C. Electrical protection devices tripped. D. Blower motor fails. E. Vacuum switch fails. F. Defective vacuum hose. G. Clogged pilot tube. NOTE: Contact the CanVent authorized service agent for repair . CanVent 200 - Operation and Maintenance Manual Amk Quarterly Maintenance 1. Unclamp and open both front air screen clamps. 2. Grasp air screen in its center position and lift off of clamps. 3. Remove all interior air screen components by sliding them out either end. 4. Clean and disinfect all components - replace any component that cannot be cleaned to its original condition. *Do NOT use flammable solvents or other flammable cleaning aids. S. Re-assemble front air screen and place into clamps-refasten clamps. • r rp� 2 Erik Circle, P.O. Box 280 Verdi, NV 89439 (702)345-0572 FAX: (702)345-0569 CA1fV=T 200 ONMATIOZ IJWD M MnWMZCE MANUAL - All cooking equipment must comply with the requirements of NFPA 96, Sections 4-2.1, entire Chapter 9, 11-2.3 and 2.4, 11-6.1. - No equipment with high backs can be utilized. - Only electrical or gas equipment may be used. Use of the system with solid fuel cooking equipment is not recommended. - Consult your local dealer for equipment restrictions. Daily Maintenance - Primary grease filters (baffle) shall be cleaned a minimum of once per day. - Clean all interior and exterior surfaces with a mild detergent or non-abrasive cleaner. Use a cloth or sponge; then rinse and dry all surfaces. *Do not use flammable solvents or other flammable cleaning aids. Monthly Maintenance Inspection and testing of the total operation and all safety inter- locks shall be performed a minimum of once per month, as follows: All gaskets, hoses, electrical covers and conduit, filter door fasteners, and fire suppresson system (ANSUL) to be inspected by qualified personnel. Sign and date log book after each inspection. tow MANUFACTURER OF QUALITY RESTAURANT VENTILATION EQUIPMENT CANVENT SYSTEM 200 05/28/93 CANVENT SYSTEM 200 has been designed for use with low back equipment; high backs may not be used. Your CanVent dealer can recommend suitable equipment for almost any type of cooking operation. FILTERS First Filter - 21i, 40% fiberglass pad Second Filter - 411 , 95% Varicell Third Filter - 121f, 99.97% HEPA Fourth Filter - 811, activated carbon cell Replacement filters are readily available from your local CanVent dealer. SERVICEABILITY Maintenance of the CANVENT SYSTEM 200 is easily performed through the front panel doors. Components are standard "off the shelf" items readily obtainable locally. MAINTENANCE CONTRACTS A maintenance contract, including regular filter replacement, if desired, can be provided by your local CanVent dealer. -3- CANVENT SYSTEM 200 05/28/93 Exhaust duct may be assembled from heating duct or round pipe and installed as required by local codes. Duct design to have no more than 0.511 static pressure. FIRE SUPPRESSION SYSTEM Each CANVENT SYSTEM 200 is 6hipped with a factory installed (Ansul) fire suppression system designed to protect both the SYSTEM and cooking equipment within the hood. Commissioning of the fire suppression system must be performed by an authorized (Ansul) installer in accordance with local codes. NOTE: When a charbroiler is used, Ansul piping must be modified using the appropriate CANVENT kit. ELECTRIC SERVICE AMPS PER LINE. THREE PHASE AMPS, MODEL VOLTS Q _ L2 L3 SINGLE PHASE CVM 65 208-240 8.5 8.5 8.5 16.5 CVM 80 - 208-240 13.0 13.0 13.0 21.5 CVM 100 208-240 13.0 13.0 13.0 21.5 If electric cooking equipment is installed in the hood, final connection of the cooking equipment and connection to the fire suppression system is to be performed by a licensed electrician in accordance with local codes. GAS SERVICE If gas cooking equipment is to be utilized, a gas shut-off valve must be installed and connected to the fire suppression system in accordance with local codes. Gas service and final connection to gas cooking equipment is the responsibility of the owner. COOKING EQUIPMENT CANVENT SYSTEM 200 has been tested and proven effective with a wide variety of both gas and electric cooking equipment. Surface temperatures of appliances installed in the hood may not exceed 600 degrees Fahrenheit. Use of the SYSTEM with wood or other solid fuel cooking equipment is not allowable. -2- CANVENT SYSTEM 200 2 Erik Circle, P.O. Box 280 05/28/93 Verdi, NV 89439 (702)345-0572 FAX:(702)345-0569 CANVENT SYSTEM 200 SPECIFICATIONS CONSTRUCTION CANVENT SYSTEM 200 is a fr6e-standing kitchen ventilation system, shipped complete from the manufacturer with adjustable legs for installation on any suitable surface. Each SYSTEM is shipped "knocked down" for easy assembly in even the smallest kitchen space by factory-trained installers in approximately four (4) hours. The hood section of CANVENT SYSTEM 200 is constructed of 18 gauge, 304 stainless steel. Exterior steel panels are finished with a based white enamel for easy cleaning and long lasting appearance. VENTLESS OPERATION CANVENT SYSTEM 200 has been tested and found to be in full compliance with all the requirements of NFPA 96, including Chapter 11, and may be operated as a Ventless Hood System. When specified as a Ventless Hood System, the CANVENT SYSTEM 200 must be installed and operated in accordance with applicable local codes. NFPA 96, if applicable, defines requirements for both the cooking equipment to be used and the environment in which ventless hood systems are installed. VENTED OPERATION If vented outside the kitchen, the amount of air exhausted through the CANVENT SYSTEM 200 is as follows: Suggested Exhaust volumes— Make-Un Ai Model CVM 65 0 cfm �4 Model CVM ® 740 c 400 cfm s Model CVM 100 925 cfm 500 cfm * Make-up air to be supplied as required by local codes_ NOTE: System is to be installed in areas with proper general ventilation only. -1- MANUFACTURER OF QUALITY RESTAURANT VENTILATION EQUIPMENT CanVent Systems Advantages OW o Factory manufactured - Control of quality Guaranteed performance o Shipped knocked down - Ease of installation Skilled, factory trained installers o Free-standing applian6e - Tax savings o Low operating costs due to small quantity of air exhausted with gas appliances. o Complies with ANSI/UL 710 and NFPA 96. o NSF Seal. o Can be installed without outside exhaust when used with electric appliances. o Makes restaurant cooking operations feasible in new and innovative locations. Pow- 7ieW # ak 2 Erik Circle, P.O. Box 280 Verdi, NV 89439 (702)345-0572 FAX:(702)345-0569 The CanVent Ustea The CanVent System is a unique combination of a highly efficient air curtain hood and a series of filters and grease removal devices which, when used with electric cooking appliances, does not require exhaust outside the kitchen. The 'system differs from conventional restaurant hood/exhaust systems as it is manufactured in standard lengths and shipped unassembled for installation by trained personnel. Electrical and/or gas connections require licensed electricians or plumbers, and commissioning -of the factory installed fire suppression system requires an authorized service technician. The CanVent System patented hood is a low velocity, high capture ratio, air curtain, minimum volume design which effectively captures, -contains, and exhausts grease, particulates, and cooking vapors produced by a variety of cooking appliances. The hood has been tested with grills, fryers, kettles, charbroilers, salamanders, and similar cooking equipment. Since the major components of the hood are shipped completely assembled from the factory, performance can be guaranteed in every installation. The CanVent System has been tested and found to be in compliance with ANSI/UL 710 and NFPA 96 by ETL Testing Laboratories, Inc. The ETL seal and the NSF inspection mark will appear on each hood. By taking advantage of the low exhaust volume requirements of the patented hood design, the innovative CanVent grease and odor removal system makes it possible to exhaust electric cooking appliances into the space in which the system is installed. This feature of the CanVent System makes possible the installation of restaurant cooking operations in locations such as malls, kiosks, plants and offices. In operation, exhaust from the cooking appliances moves from the hood into a static grease removal device, eliminating most of the entrained grease. The exhaust stream then moves through disposable grease filters, followed by a highly efficient HEPA filter which removes the remaining particulate material. Following the HEPA filter in the exhaust path is an activated carbon filter to remove gaseous odors. While exhaust to the atmosphere is required when gas cooking equipment is used with the CanVent System, the combination of low exhaust volume and highly efficient grease and particulate removal, results in a hood/exhaust system which is capable of meeting the most stringent air quality regulations now in effect. The use of a small diameter exhaust duct combined with the low quantity of room air exhausted by the CanVent System makes the system economical to install and to operate when used with gas fired cooking appliances. MANUFACTURER OF QUALITY RESTAURANT VENTILATION EQUIPMENT CanTent a division of Wells Manufacturing General Information Specifications Operation and Maintenance Manual Installation Manual Report -- ETL Testing Laboratories, Inc. Report -- Bovar Environmental Services Underwriters Laboratories, Inc., (U.L.) Standards National Fire Protection Assoc. (NFPA) 96 1991 Edition and Tentative Interim Amendment, Chapter 11 (TIA-91-1) Cam Cote Director, Product D � n—n--r2 F7_" 2 Erik Circle 4 Q ,�. -. P.O. Box 280 Verdi, NV 89439 (702) 345-0572 (702) 355-5605 (fax)l BUILHAC � r .` i�� h •� j { �.. �:'. }PS�` d9g f 4 V. P. MARKETING, INC. ® 1213 Thompson Rd. J THOMPSON, CT 06277 LETTER TEL(203) 935-0003 �/ FAX(203) 935-0011 Date 7 Z 7 �7 To l� Y Subject. ..-.,- DEPT S tVQFif�i; lo<u✓, (�61XAi-V6-7 C-frV✓�<T 375' VC QUo r f v .1f7- VOI� 6Us10V'c-1U 1t2V6. f G✓�Lc l�IGG'ry U/� v✓f'lr )"O /A/ l�tL �/ti� S� C� CL 'fC�1 C�Z1 !Ll�r f(i JCEJd✓- <<or.� SIGfJED ❑ Please reply ❑ No reply necessary 40%Pre-Consumer Content •1 0%Post-Consumer Content PRODUCT 186 !Arif.. Im,Groton,Ons.01471.T.Oraer PHONE TOLL FREE 1-808-225-6380 `�� Rogow