Coffey, Carla Planset
76 North Meadowbrook Drive
Scott E. Wyssling, PE Alpine, UT 84004
Coleman D. Larsen, SE, PE office (201) 874-3483
Gregory T. Elvestad, PE swyssling@wysslingconsulting.com
October 25, 2023
Current Insight
2852 W. Amini Way
South Jordan, UT 84095
Re: Engineering Services
Coffey Residence
63 Hatfield Street Unit 5, Northampton MA
10.080 kW System
To Whom It May Concern:
We have received information regarding solar panel installation on the roof of the above referenced
structure. Our evaluation of the structure is to verify the existing capacity of the roof system and its ability
to support the additional loads imposed by the proposed solar system.
A. Site Assessment Information
1. Site visit documentation identifying attic information including size and spacing of framing
for the existing roof structure.
2. Design drawings of the proposed s ystem including a site plan, roof plan and connection
details for the solar panels. This information will be utilized for approval and construction
of the proposed system.
B. Description of Structure:
Roof Framing: Prefabricated wood trusses at 24” on center. All truss members are
constructed of 2x4 dimensional lumber.
Roof Material: Composite Asphalt Shingles
Roof Slope: 24 degrees
Attic Access: Accessible
Foundation: Permanent
C. Loading Criteria Used
• Dead Load
o Existing Roofing and framing = 7 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 10 PSF
• Dead Load
o Existing Roofing and framing = 7 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 10 psf
• Live Load = 20 psf (reducible) – 0 psf at locations of solar panels
• Ground Snow Load = 40 psf
• Wind Load based on ASCE 7-10
o Ultimate Wind Speed = 117 mph (based on Risk Category II)
o Exposure Category C
Analysis performed of the existing roof structure utilizing the above loading criteria is in accordance
with the 2015 IRC, including provisions allowing existing structures to not require strengthening if
the new loads do not exceed existing design loads by 105% for gravity elements and 110% for
seismic elements. This analysis indicates that the existing framing will support the additional panel
loading without damage, if installed correctly.
Page 2 of 2
D. Solar Panel Anchorage
1. The solar panels shall be mounted in accordance with the most recent Ironridge installation manual.
If during solar panel installation, the roof framing members appear unstable or deflect non -
uniformly, our office should be notified before proceeding with the installation.
2. The maximum allowable withdrawal force for a 5/16” lag screw is 229 lbs per inch of penetration as
identified in the National Design Standards (NDS) of timber construction specifications. Based on
a minimum penetration depth of 2½”, the allowable capacity per connection is greater than the
design withdrawal force (demand). Considering the variable factors for the existing roof framing
and installation tolerances, the connection using one 5/16” diameter lag screw with a minimum of
2½” embedment will be adequate and will include a sufficient factor of safety.
3. Considering the wind speed, roof slopes, size and spacing of framing members, and condition of
the roof, the panel supports shall be placed no greater than 48” on center.
Based on the above evaluation, this office certifies that with the racking and mounting specified, the existing
roof system will adequately support the additional loading imposed by the solar system. This evaluation is in
conformance with the 2015 IRC, current industry standards, and is based on information supplied to us at the
time of this report.
Should you have any questions regarding the above or if you require further information do not hesitate to
contact me.
Very truly yours,
Scott E. Wyssling, PE
MA License No. 50507
Massachusetts COA # 1629764
GENERAL NOTES1.1.1PROJECT NOTES:1.1.2THIS PHOTOVOLTAIC (PV) SYSTEM SHALL COMPLY WITH THE NATIONAL ELECTRICCODE (NEC) ARTICLE 690, ALL MANUFACTURERS’S LISTING AND INSTALLATIONINSTRUCTIONS, AND THE RELEVANT CODES AS SPECIFIED BY THE AUTHORITY HAVINGJURISDICTION’S (AHJ) APPLICABLE CODES.1.1.3THE UTILITY INTERCONNECTION APPLICATION MUST BE APPROVED AND PV SYSTEMINSPECTED PRIOR TO PARALLEL OPERATION1.1.4ALL PV SYSTEM COMPONENTS; MODULES, UTILITY-INTERACTIVE INVERTERS, ANDSOURCE CIRCUIT COMBINER BOXES ARE IDENTIFIED AND LISTED FOR USE INPHOTOVOLTAIC SYSTEMS AS REQUIRED BY NEC 690.4: PV MODULES: UL1703, IEC61730,AND IEC61215, AND NFPA 70 CLASS C FIRE INVERTERS: UL 1741 CERTIFIED, IEEE 1547,929, 519 COMBINER BOX(ES): UL 1703 OR UL 1741 ACCESSORY1.1.5MAX DC VOLTAGE CALCULATED USING MANUFACTURER PROVIDED TEMP COEFFICIENTFOR VOC. IF UNAVAILABLE, MAX DC VOLTAGE CALCULATED ACCORDING TO NEC 690.7.1.1.6ALL INVERTERS, PHOTOVOLTAIC MODULES, PHOTOVOLTAIC PANELS, AND SOURCECIRCUIT COMBINERS INTENDED FOR USE IN A PHOTOVOLTAIC POWER SYSTEM WILL BEIDENTIFIED AND LISTED FOR THE APPLICATION PER 690.4 (D). SHALL BE INSTALLEDACCORDING TO ANY INSTRUCTIONS FROM LISTING OR LABELING [NEC 110.3].1.1.7ALL SIGNAGE TO BE PLACED IN ACCORDANCE WITH LOCAL BUILDING CODE. IFEXPOSED TO SUNLIGHT, IT SHALL BE UV RESISTANT. ALL PLAQUES AND SIGNAGE WILLBE INSTALLED AS REQUIRED BY THE NEC AND AHJ.1.2.1 SCOPE OF WORK:1.2.2PRIME CONTRACTOR IS RESPONSIBLE FOR THE DESIGN AND SPECIFICATIONS OF THEGRID-TIED PHOTOVOLTAIC SYSTEM RETROFIT. PRIME CONTRACTOR WILL BERESPONSIBLE FOR COLLECTING EXISTING ONSITE REQUIREMENTS TO DESIGN,SPECIFY, AND INSTALL THE EXTERIOR ROOF-MOUNTED PORTION OF THEPHOTOVOLTAIC SYSTEMS DETAILED IN THIS DOCUMENT.*NEC2020I1.3.1 WORK INCLUDES:1.3.2 PV ROOF ATTACHMENTS - IRONRIDGE FLASH VUE1.3.3 PV RACKING SYSTEM INSTALLATION - IRONRIDGE AIRE A2 RAIL1.3.4 PV MODULE AND INVERTER INSTALLATION - REC REC420AA PURE-R / TESLA 1538000-XX-Y7.6 KW (DERATED TO 5.0 KW FROM 7.68 KW)1.3.5 PV EQUIPMENT GROUNDING1.3.6 PV SYSTEM WIRING TO A ROOF-MOUNTED SOLADECK JUNCTION BOX1.3.7 PV INSTALLING SYSTEM MONITORING EQUIPMENT1.3.8 PV LOAD CENTERS (IF INCLUDED)1.3.9 PV METERING (IF INCLUDED)1.3.10 PV DISCONNECTS1.3.11 PV GROUNDING ELECTRODE & BONDING TO (E) GEC1.3.12 PV FINAL COMMISSIONING1.3.13 (E) ELECTRICAL EQUIPMENT RETROFIT FOR PVOWNERNAME:CARLA M COFFEYAUTHORITIES HAVING JURISDICTIONBUILDING: CITY OF NORTHAMPTONZONING: CITY OF NORTHAMPTONUTILITY: NATIONAL GRIDDESIGN SPECIFICATIONSOCCUPANCY: ІІCONSTRUCTION: SINGLE-FAMILYZONING:RESIDENTIALGROUND SNOW LOAD: 40 PSFWIND EXPOSURE: WIND SPEED: 117 MPHAPPLICABLE CODES & STANDARDSBUILDING: MASSACHUSETTS BUILDING CODE, 9THEDITION, AS AMENDED (780 CMR)RESIDENTIAL:MASSACHUSETTS RESIDENTIONAL BUILDINGCODE, 9TH EDITION, AS AMENDED (780 CMR)ELECTRICAL: NEC 2023FIRE:MASSACHUSETTS COMPREHENSIVE FIRESAFETY CODE (527 CMR 1.00); NFPA 1 FIRECODE - 2021PROJECT INFORMATIONPROJECT MANAGERNAME: PHONE: CONTRACTORNAME: PHONE: PATRICK RONDEAU413-584-8844VALLEY SOLAR, LLC.413-584-8844BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001T-001.00COVER PAGE(SHEET 1)01AERIAL PHOTONOT TO SCALENEWS02PLOT MAPNOT TO SCALESHEET LIST TABLESHEET NUMBERSHEET TITLET-001COVER PAGEG-001NOTESA-101SITE PLANA-102ELECTRICAL PLANA-103SOLAR ATTACHMENT PLANA-104INSTALLER REFERENCE PAGEE-601LINE DIAGRAME-602DESIGN TABLESE-603PLACARDSS-501ASSEMBLY DETAILSR-001RESOURCE DOCUMENTR-002RESOURCE DOCUMENTR-003RESOURCE DOCUMENTR-004RESOURCE DOCUMENTR-005RESOURCE DOCUMENTHA
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TSCOPE OF WORKSYSTEM SIZE:ATTACHMENT TYPE:MSP UPGRADE:STC: 24 X 420W = 10.080KWPTC: 24 X 399.84W = 9.596KW(24) REC REC420AA PURE-R(2) TESLA 1538000-XX-Y 7.6 KW(DERATED TO 5.0 KW FROM 7.68 KW)IRONRIDGE FLASH VUENONEW PV SYSTEM: 10.080 kWpCARLA M COFFEY RESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060ASSESSOR'S #: 18C-172-001PROJECT INFORMATION:-SERVICE PHASE: SINGLE-SERVICE SIZE (AMPS): 200A-DISTANCE FROM UTILITY METER TO TRANSFORMER: 75 FT.-CONNECTIVITY TYPE: UNDERGROUND-UTILITY METER NUMBER: #14641037SCOPE OF WORK:-INVERTER: (2) TESLA 1538000-XX-Y 7.6 KW (DERATED TO 5.0 KWFROM 7.68 KW)-PANELS: (24) REC REC420AA PURE-R-DC-STC RATING OF SYSTEM: 10.080 KWP-AC SYSTEM DESIGN CAPACITY (NOMINAL): 10.000 KWP-AC SYSTEM DESIGN CAPACITY (MAXIMUM): 10.080 KWPWARBURTON WAYCSigned 10/25/2023
1.1.11.1.21.1.31.1.41.1.51.1.61.1.71.2.1 1.2.22.1.1SITE NOTES:2.1.2A LADDER WILL BE IN PLACE FOR INSPECTION IN COMPLIANCE WITH OSHA REGULATIONS.2.1.3THE PV MODULES ARE CONSIDERED NON-COMBUSTIBLE AND THIS SYSTEM IS A UTILITYINTERACTIVE SYSTEM WITH NO STORAGE BATTERIES.2.1.4THE SOLAR PV INSTALLATION WILL NOT OBSTRUCT ANY PLUMBING, MECHANICAL, OR BUILDINGROOF VENTS.2.1.5PROPER ACCESS AND WORKING CLEARANCE AROUND EXISTING AND PROPOSED ELECTRICALEQUIPMENT WILL BE PROVIDED AS PER SECTION NEC 110.26.2.1.6ROOF COVERINGS SHALL BE DESIGNED, INSTALLED, AND MAINTAINED IN ACCORDANCE WITHTHIS CODE AND THE APPROVED MANUFACTURER'S INSTRUCTIONS SUCH THAT THE ROOFCOVERING SERVES TO PROTECT THE BUILDING OR STRUCTURE.2.2.1EQUIPMENT LOCATIONS2.2.2ALL EQUIPMENT SHALL MEET MINIMUM SETBACKS AS REQUIRED BY NEC 110.26.2.2.3WIRING SYSTEMS INSTALLED IN DIRECT SUNLIGHT MUST BE RATED FOR EXPECTED OPERATINGTEMPERATURE AS SPECIFIED BY NEC 690.31 (A),(C) AND NEC TABLE 310.15 (B)(1).2.2.4JUNCTION AND PULL BOXES PERMITTED INSTALLED UNDER PV MODULES ACCORDING TO NEC690.34.2.2.5ADDITIONAL AC DISCONNECT(S) SHALL BE PROVIDED WHERE THE INVERTER IS NOT WITHINSIGHT OF THE AC SERVICING DISCONNECT.2.2.6ALL EQUIPMENT SHALL BE INSTALLED ACCESSIBLE TO QUALIFIED PERSONNEL ACCORDING TONEC APPLICABLE CODES.2.2.7ALL COMPONENTS ARE LISTED FOR THEIR PURPOSE AND RATED FOR OUTDOOR USAGE WHENAPPROPRIATE.2.3.1STRUCTURAL NOTES:2.3.2RACKING SYSTEM & PV ARRAY WILL BE INSTALLED ACCORDING TO CODE-COMPLIANTINSTALLATION MANUAL. TOP CLAMPS REQUIRE A DESIGNATED SPACE BETWEEN MODULES,AND RAILS MUST ALSO EXTEND A MINIMUM DISTANCE BEYOND EITHER EDGE OF THEARRAY/SUBARRAY, ACCORDING TO RAIL MANUFACTURER’S INSTRUCTIONS.2.3.3JUNCTION BOX WILL BE INSTALLED PER MANUFACTURERS' SPECIFICATIONS. IFROOF-PENETRATING TYPE, IT SHALL BE FLASHED & SEALED PER LOCAL REQUIREMENTS.2.3.4ROOFTOP PENETRATIONS FOR PV RACEWAY WILL BE COMPLETED AND SEALED W/ APPROVEDCHEMICAL SEALANT PER CODE BY A LICENSED CONTRACTOR.2.3.5ALL PV RELATED ROOF ATTACHMENTS TO BE SPACED NO GREATER THAN THE SPAN DISTANCESPECIFIED BY THE RACKING MANUFACTURER.2.3.6WHEN POSSIBLE, ALL PV RELATED RACKING ATTACHMENTS WILL BE STAGGERED AMONGSTTHE ROOF FRAMING MEMBERS.2.4.1GROUNDING NOTES:2.4.2GROUNDING SYSTEM COMPONENTS SHALL BE LISTED FOR THEIR PURPOSE, AND GROUNDINGDEVICES EXPOSED TO THE ELEMENTS SHALL BE RATED FOR SUCH USE.2.4.3PV SYSTEMS REQUIRE AN EQUIPMENT GROUNDING CONDUCTOR. ALL METAL ELECTRICALEQUIPMENT AND STRUCTURAL COMPONENTS BONDED TO GROUND, IN ACCORDANCE WITH250.134 OR 250.136(A). ONLY THE DC CONDUCTORS ARE UNGROUNDED.2.4.4PV EQUIPMENT SHALL BE GROUNDED ACCORDING TO NEC 690.43 AND MINIMUM NEC TABLE250.122.2.4.5METAL PARTS OF MODULE FRAMES, MODULE RACKING, AND ENCLOSURE CONSIDEREDGROUNDED IN ACCORD WITH 250.134 AND 250.136(A).2.4.6EACH MODULE WILL BE GROUNDED USING WEEB GROUNDING CLIPS AS SHOWN INMANUFACTURER DOCUMENTATION AND APPROVED BY THE AHJ. IF WEEBS ARE NOT USED,MODULE GROUNDING LUGS MUST BE INSTALLED AT THE SPECIFIED GROUNDING LUG HOLESPER THE MANUFACTURERS' INSTALLATION REQUIREMENTS.2.4.7THE GROUNDING CONNECTION TO A MODULE SHALL BE ARRANGED SUCH THAT THE REMOVALOF A MODULE DOES NOT INTERRUPT A GROUNDING CONDUCTOR TO ANOTHER MODULE.2.4.8GROUNDING AND BONDING CONDUCTORS, IF INSULATED, SHALL BE COLORED GREEN ORMARKED GREEN IF #4 AWG OR LARGER [NEC 250.119]2.4.9THE GROUNDING ELECTRODE SYSTEM COMPLIES WITH NEC 690.47 AND NEC 250.50 THROUGH250.106. IF EXISTING SYSTEM IS INACCESSIBLE, OR INADEQUATE, A GROUNDING ELECTRODESYSTEM PROVIDED ACCORDING TO NEC 250, NEC 690.47 AND AHJ.2.4.10DC PV ARRAYS SHALL BE PROVIDED WITH DC GROUND-FAULT PROTECTION MEETING THEREQUIREMENTS OF 690.41(B)(1) THROUGH (3) TO REDUCE FIRE HAZARDS2.5.1INTERCONNECTION NOTES:2.5.2LOAD-SIDE INTERCONNECTION SHALL BE IN ACCORDANCE WITH [NEC 705.12]2.5.3THE SUM OF 125 PERCENT OF THE POWER SOURCE(S) OUTPUT CIRCUIT CURRENT AND THERATING OF THE OVERCURRENT DEVICE PROTECTING THE BUSBAR SHALL NOT EXCEED 120PERCENT OF THE AMPACITY OF THE BUSBAR, PV DEDICATED BACKFEED BREAKERS MUST BELOCATED OPPOSITE END OF THE BUS FROM THE UTILITY SOURCE OCPD [NEC 705.12(B)(3)(2)].2.5.4AT MULTIPLE ELECTRIC POWER SOURCES OUTPUT COMBINER PANEL, TOTAL RATING OF ALLOVERCURRENT DEVICES SHALL NOT EXCEED AMPACITY OF BUSBAR. HOWEVER, THECOMBINED OVERCURRENT DEVICE MAY BE EXCLUDED ACCORDING TO NEC 705.12 (B)(3)(3).2.5.5FEEDER TAP INTERCONNECTION (LOAD SIDE) ACCORDING TO NEC 705.12 (B)(1) AND (2)2.5.6SUPPLY SIDE TAP INTERCONNECTION ACCORDING TO NEC 705.11 WITH SERVICE ENTRANCECONDUCTORS IN ACCORDANCE WITH NEC 230.422.5.7BACKFEEDING BREAKER FOR ELECTRIC POWER SOURCES OUTPUT IS EXEMPT FROMADDITIONAL FASTENING [NEC 705.12 (E)].2.6.1 DISCONNECTION AND OVER-CURRENT PROTECTION NOTES:2.6.2DISCONNECTING SWITCHES SHALL BE WIRED SUCH THAT WHEN THE SWITCH IS OPENED THECONDUCTORS REMAINING ENERGIZED ARE CONNECTED TO THE TERMINALS MARKED “LINESIDE” (TYPICALLY THE UPPER TERMINALS).2.6.3DISCONNECTS TO BE ACCESSIBLE TO QUALIFIED UTILITY PERSONNEL, BE LOCKABLE, AND BE AVISIBLE-BREAK SWITCH.2.6.4BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED. THEREFORE BOTH MUSTOPEN WHERE A DISCONNECT IS REQUIRED, ACCORDING TO NEC 690.13.2.6.5ISOLATING DEVICES OR EQUIPMENT DISCONNECTING MEANS SHALL BE INSTALLED IN CIRCUITSCONNECTED TO EQUIPMENT AT A LOCATION WITHIN THE EQUIPMENT, OR WITHIN SIGHT ANDWITHIN 10 FT. OF THE EQUIPMENT. AN EQUIPMENT DISCONNECTING MEANS SHALL BEPERMITTED TO BE REMOTE FROM THE EQUIPMENT WHERE THE EQUIPMENT DISCONNECTINGMEANS CAN BE REMOTELY OPERATED FROM WITHIN 10 FT. OF THE EQUIPMENT, ACCORDINGTO NEC 690.15 (A).2.6.6PV SYSTEM CIRCUITS INSTALLED ON OR IN BUILDINGS SHALL INCLUDE A RAPID SHUTDOWNFUNCTION TO REDUCE SHOCK HAZARD FOR EMERGENCY RESPONDERS IN ACCORDANCE WITH690.12(A) THROUGH (D)2.6.7ALL OCPD RATINGS AND TYPES SPECIFIED ACCORDING TO NEC 690.8, 690.9, AND 240.2.6.8BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED, THEREFORE BOTHREQUIRE OVER-CURRENT PROTECTION, ACCORDING TO NEC 240.21. (SEE EXCEPTION IN NEC690.9)2.6.9IF REQUIRED BY AHJ, SYSTEM WILL INCLUDE ARC-FAULT CIRCUIT PROTECTION ACCORDING TONEC 690.11 AND UL1699B.2.7.1WIRING & CONDUIT NOTES:2.7.2ALL CONDUIT AND WIRE WILL BE LISTED AND APPROVED FOR THEIR PURPOSE. CONDUIT ANDWIRE SPECIFICATIONS ARE BASED ON MINIMUM CODE REQUIREMENTS AND ARE NOT MEANTTO LIMIT UP-SIZING.2.7.3ALL CONDUCTORS SIZED ACCORDING TO NEC 690.8, NEC 690.7.2.7.4EXPOSED PV SOURCE CIRCUITS AND OUTPUT CIRCUITS SHALL USE WIRE LISTED ANDIDENTIFIED AS PHOTOVOLTAIC (PV) WIRE [690.31 (C)]. PV MODULES WIRE LEADS SHALLBE LISTED FOR USE ON PV ARRAYS, ACCORDING TO NEC 690.31 (A).2.7.5PV WIRE BLACK WIRE MAY BE FIELD-MARKED WHITE [NEC 200.6 (A)(5)].2.7.6MODULE WIRING SHALL BE LOCATED AND SECURED UNDER THE ARRAY.2.7.7ACCORDING TO NEC 200.7, UNGROUNDED SYSTEMS DC CONDUCTORS COLORED OR MARKEDAS FOLLOWS: DC POSITIVE-RED, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREENDC NEGATIVE- BLACK, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREEN2.7.8AC CONDUCTORS COLORED OR MARKED AS FOLLOWS: PHASE A OR L1- BLACK PHASE B OR L2- RED, OR OTHER CONVENTION IF THREE PHASE PHASE C OR L3- BLUE, YELLOW, ORANGE*, OR OTHER CONVENTION NEUTRAL- WHITE OR GRAY*IN 4-WIRE DELTA CONNECTED SYSTEMS THE PHASE WITH HIGHER VOLTAGE TO BE MARKEDORANGE [NEC 110.15].*NEC2020I *NEC2020I
1.3.5 PV EQUIPMENT GROUNDING1.3.6 PV SYSTEM WIRING TO A ROOF-MOUNTED 1.3.7 PV INSTALLING SYSTEM MONITORING EQUIPMENT1.3.8 PV LOAD CENTERS (IF INCLUDED)1.3.9 PV METERING (IF INCLUDED)1.3.10 PV DISCONNECTS1.3.11 PV GROUNDING ELECTRODE & BONDING TO (E) GEC1.3.12 PV FINAL COMMISSIONING1.3.13 (E) ELECTRICAL EQUIPMENT RETROFIT FOR PVBFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001G-001.00NOTES(SHEET 2)Signed 10/25/2023
A-101.00SITE PLAN(SHEET 3)ENTRANCEBFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7
CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-00101/24" = 1'-0"SITE PLAN0112'24'NEWSNEWSAREA OF WORKPROPERTY LINEGENERAL NOTES1. FIELD VERIFY ALL MEASUREMENTS2. ITEMS BELOW MAY NOT BE ON THIS PAGEHATFIELD STTRANSFORMER
NOTE: READILY ACCESSIBLE OPEN BLADE ACSYSTEM DISCONNECT VISIBLE FROM APPROACHTO RESIDENCE 60A 240V LOCATED EXTERIOR ONWALL NEAR METER NEMA 3RTOTAL SYSTEM KWAC SIZE: 10.000 KWACSOLAR REC METER - CUSTOMER OWNEDUTILITY METERAC DISCONNECT60'-7"4'-4"32'-7"1'-11"WARBURTON WAYSigned 10/25/2023
MODULE:RECREC420AA PURE-R420 WATTS44.01"68.11"BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001A-102.00ELECTRICAL PLAN(SHEET 4)01/8" = 1'-0"ELECTRICAL PLAN014'8'NEWSAMODULE STRINGINGBMODULE STRINGINGCMODULE STRINGINGDMODULE STRINGINGGENERAL NOTES1. FIELD VERIFY ALL MEASUREMENTS2. ITEMS BELOW MAY NOT BE ON THIS PAGE(N) (1) SOLADECK JUNCTION BOX #1NOTE: READILY ACCESSIBLE OPEN BLADE ACSYSTEM DISCONNECT VISIBLE FROM APPROACHTO RESIDENCE 60A 240V LOCATED EXTERIOR ONWALL NEAR METER NEMA 3RARRAY 1 - 5.040 KW[x12] (N) MODULESTILT: 24 DEGREESROOF PITCH: 5:12AZIMUTH: 108 DEGREESARRAY 2 - 5.040 kW[x12] (N) MODULESTILT: 24 DEGREESROOF PITCH: 5:12AZIMUTH: 288 DEGREES(N) (1) CIRCUIT BREAKER DISCONNECT(N) (1) SOLAR REC METER - CUSTOMER OWNED(E) (1) UTILITY METEREXTERIOR PV EQUIPMENTINTERIOR PV EQUIPMENT(N) (2) INVERTERS(N) (1) AC DISCONNECT(E) (1) MAIN ELECTRICAL PANELSQUARE FOOTAGE OF ROOF: 1784 SQ. FT.SQUARE FOOTAGE OF ARRAY: 499.59 SQ. FT.PERCENTAGE OF ROOF COVEREDBY THE ARRAYS: 28.00%(N) (1) AC LOAD CENTER(N) (1) SOLADECKJUNCTION BOX #2DDDDDDССССССAAAAAAВВВВВВ3 FT. FIRE ACCESS PATH3 FT. FIRE ACCESS PATH3 FT. FIRE ACCESS PATH3 FT. FIRE ACCESS PATH
MODULE:RECREC420AA PURE-R420 WATTS44.01"68.11"BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7
CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001A-103.00SOLAR ATTACHMENT PLAN(SHEET 5)01/8" = 1'-0"SOLAR ATTACHMENT PLAN014'8'ROOF TRUSSESGENERAL NOTES1. FIELD VERIFY ALL MEASUREMENTS2. ITEMS BELOW MAY NOT BE ON THIS PAGEFLUSH MOUNT SOLAR MODULESATTACHED TO ROOF SURFACE (SEESHEET S-501 FOR MOUNTING DETAILS)ROOF MATERIAL IS ASPHALT SHINGLENEWS14'-8"14'-8"Signed 10/25/2023
MODULE:RECREC420AA PURE-R420 WATTS44.01"68.11"BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7
CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001A-104.00INSTALLER REFERENCEPAGE(SHEET 6)01/8" = 1'-0"INSTALLER REFERENCE PAGE014'8'GENERAL NOTES1. FIELD VERIFY ALL MEASUREMENTS2. ITEMS BELOW MAY NOT BE ON THIS PAGENEWS
PV SYSTEM EQUIPPED WITH RAPIDSHUTDOWN DISCONNECT PER NEC 690.12SYSTEM COMPLIANT WITH NEC 690.134A6B6(N) (12) RECREC420AA PURE-R420 WATTS(N) (6) TESLASOLAR SHUTDOWN DEVICE(N) SOLADECKJUNCTIONBOX #112L2NGGL1(N) TESLA1538000-XX-Y 7.6 KW(DERATED TO 5.0 KWFROM 7.68 KW)L2GNL1CB130ACB230A(N) 125А LOAD CENTER240/120 V 1Ø, 3W3C6D6(N) (12) RECREC420AA PURE-R420 WATTS(N) (6) TESLASOLAR SHUTDOWN DEVICE(N) SOLADECKJUNCTIONBOX #212L2NGGL1(N) TESLA1538000-XX-Y 7.6 KW(DERATED TO 5.0 KWFROM 7.68 KW)3NOTE: READILY ACCESSIBLE OPEN BLADE ACSYSTEM DISCONNECT VISIBLE FROM APPROACHTO RESIDENCE 60A 240V LOCATED EXTERIOR ONWALL NEAR METER NEMA 3RUTILITY METER:#14641037EQUIPMENT LEFTOF LINE IS (N) NEWUNLESS OTHERWISE NOTED.EQUIPMENT RIGHTOF LINE IS (E) EXISTINGUNLESS OTHERWISE NOTED.(E) GROUNDINGELECTRODEGROUNDRODTO UTILITYGRID (UG)L1L2N(Е) MAIN ELECTRICAL PANEL240/120 V 1Ø, 3WMAIN BUSS: 200A(E)UTILITYMETERGNTO (E)LOADS(E) MAIN200AL2L1NNNTAP6GSW1(N) AC DISCONNECT, 60A7NOTE:TOP LUGS TO SOLAR GENERATION (LOAD)BOTTOM LUGS TO UTILITY (LINE) LOCATEDEXTERIORVTOP LUGSBOTTOM LUGSM1(N) CUSTOMER OWNED METER5G(N) CIRCUIT BREAKERDISCONNECTOCPD RATING: 60AMLO BUSS: 125ACB3CONDUCTOR AND CONDUIT SCHEDULE W/ELECTRICAL CALCULATIONSIDTYPICALCONDUCTORCONDUITCURRENT-CARRYINGCONDUCTORS IN CONDUITOCPDEGCTEMP. CORR.FACTORCONDUIT FILLFACTORCONT.CURRENTMAX. CURRENT(125%)BASE AMP.DERATEDAMP.TERM. TEMP. RATINGAMP. @ TERMINAL1410 AWG PV WIRE, COPPERFREE AIR2N/A6 AWG BARE, COPPER0.96 (32.7 °C)111.11A13.89A55A52.8A75°C50A2210 AWG THWN-2, COPPER0.75'' DIA EMT4N/A10 AWG THWN-2, COPPER0.96 (32.7 °C)0.811.11A13.89A40A30.72A75°C35A3210 AWG THWN-2, COPPER0.75'' DIA EMT230A10 AWG THWN-2, COPPER0.96 (32.7 °C)121A26.25A40A38.4A75°C35A416 AWG THWN-2, COPPER0.75'' DIA EMT2N/A6 AWG THWN-2, COPPER0.96 (32.7 °C)142A52.5A75A72A75°C65A516 AWG THWN-2, COPPER0.75'' DIA EMT2N/A6 AWG THWN-2, COPPER0.96 (32.7 °C)142A52.5A75A72A75°C65A616 AWG THWN-2, COPPER0.75'' DIA EMT260A6 AWG THWN-2, COPPER0.96 (32.7 °C)142A52.5A75A72A75°C65A716 AWG THWN-2, COPPER0.75'' DIA EMT2N/A6 AWG THWN-2, COPPER0.96 (32.7 °C)142A52.5A75A72A75°C65ABFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7
CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001E-601.00LINE DIAGRAM(SHEET 7)MODULE STRINGINGMODULE STRINGINGABMODULE STRINGINGCMODULE STRINGINGD
DISCONNECTSINVERTERSOCPDSMODULESASHRAE EXTREME LOW-25.9°C (-14.6°F), SOURCE: BARNES MUNI (42.16°; -72.72°)ASHRAE 2% HIGH32.7°C (90.9°F), SOURCE: BARNES MUNI (42.16°; -72.72°)REF.QTY.RATED CURRENTMAX VOLTAGECB1-2230A240VACCB3160A240VACREF.QTY.MAKE AND MODELRATED CURRENTMAX RATED VOLTAGESW11EATON DG222URB OR EQUIV.60A240VACREF.QTY.MAKE AND MODELPMAXPTCISCIMPVOCVMPTEMP. COEFF. OF VOCFUSE RATINGPM1-2424REC REC420AA PURE-R420W399.84W8.89A8.4A59.4V50V-0.143V/°C (-0.24%/°C)20AREF.QTY.MAKE AND MODELACVOLTAGEGROUNDOCPDRATINGRATEDPOWERMAX OUTPUTCURRENTMAX INPUTCURRENTMAX INPUTVOLTAGECEC WEIGHTEDEFFICIENCYI1-22TESLA 1538000-xx-y 7.6 KW (DERATED TO 5.0 KWFROM7.68 KW)240VFLOATING30A7600W21A4x11A600V97.5%RAPID SHUTDOWN DEVICEREF.QTY.MODELNOMINAL INPUT IMPMAX INPUT ISCMAX DC VOLTAGERSD1-1212TESLA SOLAR SHUTDOWN DEVICE12A19A600VSYSTEM SUMMARYINVERTER #1INVERTER #2MPPT #1MPPT #2MPPT #1MPPT #2MODULES IN SERIES6666ARRAY VMP300V300V300V300VARRAY IMP8.4A8.4A8.4A8.4AARRAY VOC356.4V356.4V356.4V356.4VARRAY MAX VOC400.1V400.1V400.1V400.1VARRAY ISC8.89A8.89A8.89A8.89AARRAY STC POWER5,040W5,040WARRAY PTC POWER4,798W4,798WMAX AC CURRENT21A21AMAX AC POWER5,000W5,000WDERATED (CEC) AC POWER4,702W4,702WARRAY STC POWER10,080WARRAY PTC POWER9,596WMAX AC CURRENT42AMAX AC POWER10,000WDERATED (CEC) AC POWER9,404WBILL OF MATERIALSCATEGORYMAKEMODEL NUMBERREFQTYUNITQTY/UNITDESCRIPTIONMODULERECREC420AA PURE-RPM1-2424PIECES1REC REC420AA PURE-R 420W 120 HALF-CUT CELLS, MONOCRYSTALLINE SILICONINVERTERTESLA1538000-xx-y 7.6 KWI1-22PIECES1TESLA 1538000-xx-y 7.6 KW 7600W INVERTERRAPID SHUTDOWN DEVICETESLASOLAR SHUTDOWN DEVICERSD1-1212PIECES1TESLA SOLAR SHUTDOWN DEVICEDISCONNECTEATONDG222URBSW11PIECE1EATON DG222URB, NON FUSED, 2-POLE, 60A, 240VAC OR EQUIVALENTPRODUCTION METERGENERIC MANUFACTURERGEN-METER-80AM11PIECE1ELECTRICAL METER, OWNER APPROVEDAC COMBINER PANELGEN-AC-PANELEP11PIECE1AC SUBPANELWIRINGGEN-10-AWG-PV-WIRE-CUWR1360FEET110 AWG PV WIRE, COPPER (POSITIVE AND NEGATIVE)WIRINGGEN-6-AWG-BARE-CUWR1180FEET16 AWG BARE, COPPER (GROUND)WIRINGGEN-10-AWG-THWN-2-CU-RDWR280FEET110 AWG THWN-2, COPPER, RED (POSITIVE)WIRINGGEN-10-AWG-THWN-2-CU-BLKWR280FEET110 AWG THWN-2, COPPER, BLACK (NEGATIVE)WIRINGGEN-10-AWG-THWN-2-CU-RDWR320FEET110 AWG THWN-2, COPPER, RED (LINE 1)WIRINGGEN-10-AWG-THWN-2-CU-BLKWR320FEET110 AWG THWN-2, COPPER, BLACK (LINE 2)WIRINGGEN-10-AWG-THWN-2-CU-WHWR320FEET110 AWG THWN-2, COPPER, WHITE (NEUTRAL)WIRINGGEN-10-AWG-THWN-2-CU-GRWR2-360FEET110 AWG THWN-2, COPPER, GREEN (GROUND)WIRINGGEN-6-AWG-THWN-2-CU-RDWR4-740FEET16 AWG THWN-2, COPPER, RED (LINE 1)WIRINGGEN-6-AWG-THWN-2-CU-BLKWR4-740FEET16 AWG THWN-2, COPPER, BLACK (LINE 2)WIRINGGEN-6-AWG-THWN-2-CU-WHWR4-740FEET16 AWG THWN-2, COPPER, WHITE (NEUTRAL)WIRINGGEN-6-AWG-THWN-2-CU-GRWR4-740FEET16 AWG THWN-2, COPPER, GREEN (GROUND)WIREWAYGEN-EMT-0.75'' DIAWW2-7100FEET1EMT CONDUIT, 0.75'' DIAOCPDGENERIC MANUFACTURERGEN-CB-30A-240VACCB1-22PIECES1CIRCUIT BREAKER, 30A, 240VACOCPDGENERIC MANUFACTURERGEN-CB-60A-240VACCB31PIECE1CIRCUIT BREAKER, 60A, 240VACTRANSITION BOXGENERIC MANUFACTURERGEN-AWB-TB-4-4XJB1-22PIECE1TRANSITION/PASS-THROUGH BOX, WITH 4 TERMINAL BLOCKSBFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7
CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001E-602.00DESIGN TABLES(SHEET 8)
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001E-603.00PLACARDS(SHEET 9)N
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!CAUTION!POWER TO THIS BUILDING IS ALSO SUPPLIEDFROM ROOF MOUNTED SOLAR ARRAYS WITHSAFETY DISCONNECTS AS SHOWN:PV ARRAYBACKFRONT(N) (1) CIRCUIT BREAKER DISCONNECT(E) (1) UTILITY METEREXTERIOR PV EQUIPMENTINTERIOR PV EQUIPMENT(E) (1) MAIN ELECTRICAL PANEL(N) (2) INVERTERS(N) (1) CUSTOMER OWNED METER(N) (1) AC DISCONNECTELECTRICAL SHOCK HAZARDTERMINALS ON THE LINE ANDLOAD SIDES MAY BE ENERGIZEDIN THE OPEN POSITIONWARNINGLABEL 1AT EACH DISCONNECTING MEANS FORPHOTOVOLTAIC EQUIPMENT (2" X 4").[NEC 690.13].POWER SOURCEOUTPUT CONNECTIONDO NOT RELOCATE THISOVERCURRENT DEVICEWARNINGLABEL 2AT POINT OF INTERCONNECTIONOVERCURRENT DEVICE (2" X 4").[NEC 705.12(B)(2)(3)(B)].WARNING: PHOTOVOLTAICPOWER SOURCELABEL 4AT EXPOSED RACEWAYS, CABLE TRAYS, AND OTHER WIRINGMETHODS; SPACED AT MAXIMUM 10 FT SECTION OR WHERESEPARATED BY ENCLOSURES, WALLS, PARTITIONS, CEILINGS,OR FLOORS (5 3/4" X 1 1/8").[NEC 690.31(G)]LETTERS AT LEAST 3/8 INCH; WHITE ON RED BACKGROUND;REFLECTIVE[IFC 605.11.1.1]RAPID SHUTDOWNSWITCH FORSOLAR PV SYSTEMLABEL 5AT RAPID SHUTDOWN DISCONNECT SWITCH (5 1/4" X 2").[NEC 690.56(C)(3)].LABEL 9AT EACH AC DISCONNECTING MEANS(4" X 1").[NEC 690.13(B)].LABEL 10AT EACH DC DISCONNECTING MEANS(4" X 1").[NEC 690.13(B)].SOLAR PV SYSTEMEQUIPPED WITHRAPID SHUTDOWNTURN RAPID SHUTDOWN SWITCH TOTHE "OFF" POSITION TO SHUT DOWNPV SYSTEM AND REDUCE SHOCKHAZARD IN ARRAYLABEL 3AT RAPID SHUTDOWN SYSTEM(3 3/4" X 5 1/4"). [NEC 690.56(C)(1)(A)].DIRECTORYPERMANENT PLAQUE OR DIRECTORY PROVIDING THE LOCATION OF THE SERVICEDISCONNECTING MEANS AND THE PHOTOVOLTAIC SYSTEM DISCONNECTINGMEANS IF NOT IN THE SAME LOCATION (5 3/4" X 1 1/8").[NEC 690.56(B)]WHERE THE PV SYSTEMS ARE REMOTELY LOCATED FROM EACH OTHER, ADIRECTORY IN ACCORDANCE WITH 705.10 SHALL BE PROVIDED AT EACH PVSYSTEM DISCONNECTING MEANS.PV SYSTEM EQUIPMENT AND DISCONNECTING MEANS SHALL NOT BE INSTALLED INBATHROOMS[NEC 690.4(D),(E)]PHOTOVOLTAIC SOLARAC DISCONNECTCAUTIONSOLAR ELECTRIC SYSTEM CONNECTEDLABEL 6AT UTILITY METER (5 3/4" X 1 1/8")[NEC 690.56(B)]WARNINGLABEL 7AT POINT OF INTERCONNECTION(2 3/4" X 1 5/8").[NEC 705.12(B)(3)]WARNINGSOLAR ELECTRICCIRCUIT BREAKERIS BACKFEEDLABEL 8AT POINT OFINTERCONNECTION(2" X 1").[NEC 705.12(B)(3)]PHOTOVOLTAIC SOLARDC DISCONNECTLABELING NOTES1.1 LABELING REQUIREMENTS BASED ON THE 2020 NATIONAL ELECTRICAL CODE, INTERNATIONALFIRE CODE 605.11, OSHA STANDARD 1910.145, ANSI Z5351.2 MATERIAL BASED ON THE REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION.1.3 LABELS TO BE OF SUFFICIENT DURABILITY TO WITHSTAND THE ENVIRONMENT INVOLVED.1.4 LABELS TO BE A MINIMUM LETTER HEIGHT OF 3/8” AND PERMANENTLY AFFIXED.1.5 ALERTING WORDS TO BE COLOR CODED. “DANGER” WILL HAVE RED BACKGROUND; “WARNING”WILL HAVE ORANGE BACKGROUND; “CAUTION” WILL HAVE YELLOW BACKGROUND. [ANSI Z535]1.6 ALL SIGNAGE MUST BE PERMANENTLY ATTACHED AND BE WEATHER RESISTANT/SUNLIGHTRESISTANT AND CANNOT BE HAND-WRITTEN PER NEC 110.21(B)LABEL 11AT POINT OF INTERCONNECTION, MARKEDAT DISCONNECTING MEANS (4" X 2").[NEC 690.54]AC DISCONNECTPHOTOVOLTAIC SYSTEMPOWER SOURCERATED ACOUTPUT CURRENTNOMINAL OPERATINGAC VOLTAGEAMPSVOLTSLABEL 12AT EACH DC DISCONNECTINGMEANS (3" X 4").[NEC 690.53].MAXIMUM VOLTAGEMAX CIRCUIT CURRENTVDCAMPSDIRECT CURRENTPHOTOVOLTAIC POWER SOURCELABEL 13AT EACH DC DISCONNECTINGMEANS (3" X 4").[NEC 690.53].MAXIMUM VOLTAGEMAX CIRCUIT CURRENTVDCAMPSDIRECT CURRENTPHOTOVOLTAIC POWER SOURCESOLAR ELECTRICPV PANELSINTERACTIVE PHOTOVOLTAIC SYSTEM CONNECTEDPHOTOVOLTAIC SYSTEM DISCONNECT LOCATEDNW SIDE OF THE HOUSE24042400.18.89400.18.89DUAL POWER SUPPLYSOURCES: UTILITY GRID AND PV SOLARELECTRIC SYSTEM(N) (1) AC LOAD CENTERHATFIELD STPROUDLY INSTALLED BYVALLEY SOLAR 413-584-8844
20201212141413131515181822221111S-501D5111133548252423S-501D427272SHEET KEYNOTESSHEET KEYNOTESSHEET KEYNOTES1. FIELD VERIFY ALL MEASUREMENTS2. ITEMS BELOW MAY NOT BE ON THIS PAGEGENERAL NOTESROOF SLOPE 991010101066212177BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001RACKING DETAIL (TRANSVERSE)D1SCALE: NOT TO SCALERACKING DETAIL (LONGITUDINAL)D2SCALE: NOT TO SCALERACKING DETAIL (TOP)D3SCALE: NOT TO SCALEDETAIL (LONGITUDINAL)D5SCALE: NOT TO SCALEDETAIL (TRANSVERSE)D4SCALE: NOT TO SCALES-501.00ASSEMBLY DETAILS(SHEET 10)1. ROOF MATERIAL: ASPHALT SHINGLE2. ROOF STRUCTURE: TRUSS3. ATTACHMENT TYPE: IRONRIDGE FLASH VUE4. MODULE MANUFACTURER: REC5. MODULE MODEL: REC420AA PURE-R6. MODULE LENGTH: 68.11''7. MODULE WIDTH: 44.01''8. MODULE WEIGHT: 47.39 LBS.9. SEE SHEET A-103 FOR DIMENSION(S)10. FIRE OFFSET: 3' FROM RIDGE/RAKE, 18" FROM HIPS/VALLEYS 11. TRUSS SPACING: 24 IN. O.C.12. TRUSS SIZE: 2x4 IN. NOMINAL.13. LAG BOLT DIAMETER: BOLT/SCREW SUPPLIED WITH RACKING.14. LAG BOLT EMBEDMENT: 2.5 IN.15. TOTAL # OF ATTACHMENTS: 5416. TOTAL AREA: 499.59 SQ. FT.17. TOTAL WEIGHT: 1257.07 LBS.18. WEIGHT PER ATTACHMENT: 23.28 LBS.19. DISTRIBUTED LOAD: 2.52 PSF20. MAX. HORIZONTAL STANDOFF: 48 IN.21. MAX. VERTICAL STANDOFF: IN ACCORDANCE WITH MODULE MANUFACTURER'S INSTRUCTIONS.22. STANDOFF STAGGERING: YES23. RAIL MANUFACTURER (OR EQUIV.): IRONRIDGE24. RAIL MODEL (OR EQUIVALENT): AIRE A2 RAIL25. RAIL WEIGHT: 0.68 PLF26. MAX. TRUSS SPAN: N/A27. MODULE CLEARANCE: 3 IN. MIN., 6 IN. MAX.Signed 10/25/2023
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001R-001.00RESOURCE DOCUMENT(SHEET 11)
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001R-002.00RESOURCE DOCUMENT(SHEET 12)
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001R-003.00RESOURCE DOCUMENT(SHEET 13)
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001R-004.00RESOURCE DOCUMENT(SHEET 14)
BFADE23DESIGN BY:ACDEGHBCFGH1456DATE:CHECKED BY:REVISIONS P.V.M.M.10.19.2023PAPER SIZE: 11" x 17" (ANSI B)V.2.7CONTRACTORPHONE:LIC. NO.:HIC. NO.:ELE. NO.:ADDRESS:VALLEY SOLAR, LLC.116 PLEASANT ST SUITE 321EASTHAMPTON, MA 01027664A1413-584-8844186338UNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDUNAUTHORIZED USE OF THISDRAWING SET WITHOUT WRITTENPERMISSION FROM CONTRACTOR IS INVIOLATION OF U.S. COPYRIGHT LAWSAND WILL BE SUBJECT TO CIVILDAMAGES AND PROSECUTIONS.ENGINEER OF RECORDNEW PV SYSTEM: 10.080 kWpCARLA MCOFFEYRESIDENCE63 HATFIELD ST UNIT 5NORTHAMPTON, MA 01060APN: 18C-172-001R-005.00RESOURCE DOCUMENT(SHEET 15)