Loading...
Hornor, John Planset76 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 December 4, 2023 Greenlancer Energy Inc. 500 Woodward Avenue, Suite 2125 Detroit, MI 48226 Re: Engineering Services Hornor Residence 46 Ladyslipper Lane, Florence 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 framingfor the existing roof structure.2.Design drawings of the proposed system including a site plan, roof plan and connectiondetails for the solar panels. This information will be utilized for approval and construction of the proposed system. B.Description of Structure: Roof Framing: 2x8 dimensional lumber at 16” on center with a purlin support at midspanof the rafters. Roof Material: Composite Asphalt Shingles Roof Slope: 27 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 asidentified in the National Design Standards (NDS) of timber construction specifications. Based ona minimum penetration depth of 2½”, the allowable capacity per connection is greater than thedesign 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 of2½” 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 ofthe 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 NOTES 1.1.1 PROJECT NOTES: 1.1.2 THIS PHOTOVOLTAIC (PV) SYSTEM SHALL COMPLY WITH THE NATIONAL ELECTRIC CODE (NEC) ARTICLE 690, ALL MANUFACTURERS’S LISTING AND INSTALLATION INSTRUCTIONS, AND THE RELEVANT CODES AS SPECIFIED BY THE AUTHORITY HAVING JURISDICTION’S (AHJ) APPLICABLE CODES. 1.1.3 THE UTILITY INTERCONNECTION APPLICATION MUST BE APPROVED AND PV SYSTEM INSPECTED PRIOR TO PARALLEL OPERATION 1.1.4 ALL PV SYSTEM COMPONENTS; MODULES, UTILITY-INTERACTIVE INVERTERS, AND SOURCE CIRCUIT COMBINER BOXES ARE IDENTIFIED AND LISTED FOR USE IN PHOTOVOLTAIC 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 ACCESSORY 1.1.5 MAX DC VOLTAGE CALCULATED USING MANUFACTURER PROVIDED TEMP COEFFICIENT FOR VOC. IF UNAVAILABLE, MAX DC VOLTAGE CALCULATED ACCORDING TO NEC 690.7. 1.1.6 ALL INVERTERS, PHOTOVOLTAIC MODULES, PHOTOVOLTAIC PANELS, AND SOURCE CIRCUIT COMBINERS INTENDED FOR USE IN A PHOTOVOLTAIC POWER SYSTEM WILL BE IDENTIFIED AND LISTED FOR THE APPLICATION PER 690.4 (D). SHALL BE INSTALLED ACCORDING TO ANY INSTRUCTIONS FROM LISTING OR LABELING [NEC 110.3]. 1.1.7 ALL SIGNAGE TO BE PLACED IN ACCORDANCE WITH LOCAL BUILDING CODE. IF EXPOSED TO SUNLIGHT, IT SHALL BE UV RESISTANT. ALL PLAQUES AND SIGNAGE WILL BE INSTALLED AS REQUIRED BY THE NEC AND AHJ. 1.2.1 SCOPE OF WORK: 1.2.2 PRIME CONTRACTOR IS RESPONSIBLE FOR THE DESIGN AND SPECIFICATIONS OF THE GRID-TIED PHOTOVOLTAIC SYSTEM RETROFIT. PRIME CONTRACTOR WILL BE RESPONSIBLE FOR COLLECTING EXISTING ONSITE REQUIREMENTS TO DESIGN, SPECIFY, AND INSTALL THE EXTERIOR ROOF-MOUNTED PORTION OF THE PHOTOVOLTAIC SYSTEMS DETAILED IN THIS DOCUMENT. 1.3.1 WORK INCLUDES: 1.3.2 PV ROOF ATTACHMENTS - IRONRIDGE FLASH VUE 1.3.3 PV RACKING SYSTEM INSTALLATION - IRONRIDGE AIRE A1 1.3.4 PV MODULE AND INVERTER INSTALLATION - REC SOLAR REC420AA PURE-R / TESLA 7.6 KW 1.3.5 PV EQUIPMENT GROUNDING 1.3.6 PV SYSTEM WIRING TO A ROOF-MOUNTED SOLADECK JUNCTION BOX 1.3.7 PV LOAD CENTERS (IF INCLUDED) 1.3.8 PV METERING/MONITORING (IF INCLUDED) 1.3.9 PV DISCONNECTS 1.3.10 PV FINAL COMMISSIONING 1.3.11 (E) ELECTRICAL EQUIPMENT RETROFIT FOR PV 1.3.12 SIGNAGE PLACED IN ACCORDANCE WITH LOCAL BUILDING CODE *NEC2020I2 OWNER NAME: JOHN W HORNOR PHONE: E-MAIL: PROJECT MANAGER NAME: PATRICK RONDEAU PHONE: 413-584-8844 CONTRACTOR NAME: VALLEY SOLAR LLC PHONE: 413-584-8844 AUTHORITIES HAVING JURISDICTION BUILDING: VILLAGE OF FLORENCE ZONING: UTILITY: VILLAGE OF FLORENCE NATIONAL GRID DESIGN SPECIFICATIONS OCCUPANCY: II CONSTRUCTION: SINGLE-FAMILY ZONING: RESIDENTIAL GROUND SNOW LOAD: 40 PSF WIND EXPOSURE: C WIND SPEED: 117 MPH APPLICABLE CODES & STANDARDS BUILDING: MASSACHUSETTS BUILDING CODE, 9TH EDITION, AS AMENDED (780 CMR) MASSACHUSETTS RESIDENTIONAL BUILDING CODE, 9TH EDITION, AS AMENDED (780 CMR) ELECTRICAL: NEC 2023 FIRE: MASSACHUSETTS COMPREHENSIVE FIRE SAFETY CODE (527 CMR 1.00); NFPA 1 FIRE CODE - 2021 PROJECT INFORMATION NO NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 ASSESSOR'S #: NHAMM0035B0224L0001 PROJECT INFORMATION SCOPE OF WORK SYSTEM SIZE: ATTACHMENT TYPE: MSP UPGRADE: STC: 24 X 420W = 10.080KW PTC: 24 X 399.8W = 9.595KW (24) REC SOLAR REC420AA PURE-R (1) TESLA 7.6 KW IRONRIDGE FLASH VUE NO B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 01 AERIAL PHOTO NOT TO SCALE N EW S 02 PLAT MAP NOT TO SCALE LA D Y S L I P P E R L N SHEET LIST TABLE SHEET NUMBER SHEET TITLE T-001.00 COVER PAGE G-001.00 NOTES A-101.00 SITE PLAN A-102.00 ELECTRICAL PLAN A-103.00 SOLAR ATTACHMENT PLAN A-104.00 ROOF PLAN E-601.00 LINE DIAGRAM E-602.00 DESIGN TABLES E-603.00 PLACARDS S-501.00 ASSEMBLY DETAILS R-001.00 RESOURCE DOCUMENT R-002.00 RESOURCE DOCUMENT R-003.00 RESOURCE DOCUMENT R-004.00 RESOURCE DOCUMENT R-005.00 RESOURCE DOCUMENT T-001.00 COVER PAGE - SERVICE PHASE: SINGLE - SERVICE SIZE (AMPS): 200A - DISTANCE FROM UTILITY METER TO TRANSFORMER: ______ - CONNECTIVITY TYPE: UNDERGROUND - UTILITY METER NUMBER: 60049338 - INVERTER: (1) TESLA 7.6 KW - PANELS: (24) REC SOLAR REC420AA PURE-R - DC-STC RATING OF SYSTEM: 10.080kW - AC SYSTEM DESIGN CAPACITY (NOMINAL): 7.600W - AC SYSTEM DESIGN CAPACITY (MAXIMUM): 7.680W Signed 12/04/2023 2.1.1 SITE NOTES: 2.1.2 A LADDER WILL BE IN PLACE FOR INSPECTION IN COMPLIANCE WITH OSHA REGULATIONS. 2.1.3 THE PV MODULES ARE CONSIDERED NON-COMBUSTIBLE AND THIS SYSTEM IS A UTILITY INTERACTIVE SYSTEM WITH NO STORAGE BATTERIES. 2.1.4 THE SOLAR PV INSTALLATION WILL NOT OBSTRUCT ANY PLUMBING, MECHANICAL, OR BUILDING ROOF VENTS. 2.1.5 PROPER ACCESS AND WORKING CLEARANCE AROUND EXISTING AND PROPOSED ELECTRICAL EQUIPMENT WILL BE PROVIDED AS PER SECTION NEC 110.26. 2.1.6 ROOF COVERINGS SHALL BE DESIGNED, INSTALLED, AND MAINTAINED IN ACCORDANCE WITH THIS CODE AND THE APPROVED MANUFACTURER'S INSTRUCTIONS SUCH THAT THE ROOF COVERING SERVES TO PROTECT THE BUILDING OR STRUCTURE. 2.2.1 EQUIPMENT LOCATIONS 2.2.2 ALL EQUIPMENT SHALL MEET MINIMUM SETBACKS AS REQUIRED BY NEC 110.26. 2.2.3 WIRING SYSTEMS INSTALLED IN DIRECT SUNLIGHT MUST BE RATED FOR EXPECTED OPERATING TEMPERATURE AS SPECIFIED BY NEC 690.31 (A),(C) AND NEC TABLE 310.15 (B)(1). 2.2.4 JUNCTION AND PULL BOXES PERMITTED INSTALLED UNDER PV MODULES ACCORDING TO NEC 690.34. 2.2.5 ADDITIONAL AC DISCONNECT(S) SHALL BE PROVIDED WHERE THE INVERTER IS NOT WITHIN SIGHT OF THE AC SERVICING DISCONNECT. 2.2.6 ALL EQUIPMENT SHALL BE INSTALLED ACCESSIBLE TO QUALIFIED PERSONNEL ACCORDING TO NEC APPLICABLE CODES. 2.2.7 ALL COMPONENTS ARE LISTED FOR THEIR PURPOSE AND RATED FOR OUTDOOR USAGE WHEN APPROPRIATE. 2.3.1 STRUCTURAL NOTES: 2.3.2 RACKING SYSTEM & PV ARRAY WILL BE INSTALLED ACCORDING TO CODE-COMPLIANT INSTALLATION MANUAL. TOP CLAMPS REQUIRE A DESIGNATED SPACE BETWEEN MODULES, AND RAILS MUST ALSO EXTEND A MINIMUM DISTANCE BEYOND EITHER EDGE OF THE ARRAY/SUBARRAY, ACCORDING TO RAIL MANUFACTURER’S INSTRUCTIONS. 2.3.3 JUNCTION BOX WILL BE INSTALLED PER MANUFACTURERS' SPECIFICATIONS. IF ROOF-PENETRATING TYPE, IT SHALL BE FLASHED & SEALED PER LOCAL REQUIREMENTS. 2.3.4 ROOFTOP PENETRATIONS FOR PV RACEWAY WILL BE COMPLETED AND SEALED W/ APPROVED CHEMICAL SEALANT PER CODE BY A LICENSED CONTRACTOR. 2.3.5 ALL PV RELATED ROOF ATTACHMENTS TO BE SPACED NO GREATER THAN THE SPAN DISTANCE SPECIFIED BY THE RACKING MANUFACTURER. 2.3.6 WHEN POSSIBLE, ALL PV RELATED RACKING ATTACHMENTS WILL BE STAGGERED AMONGST THE ROOF FRAMING MEMBERS. 2.4.1 GROUNDING NOTES: 2.4.2 GROUNDING SYSTEM COMPONENTS SHALL BE LISTED FOR THEIR PURPOSE, AND GROUNDING DEVICES EXPOSED TO THE ELEMENTS SHALL BE RATED FOR SUCH USE. 2.4.3 PV SYSTEMS REQUIRE AN EQUIPMENT GROUNDING CONDUCTOR. ALL METAL ELECTRICAL EQUIPMENT AND STRUCTURAL COMPONENTS BONDED TO GROUND, IN ACCORDANCE WITH 250.134 OR 250.136(A). ONLY THE DC CONDUCTORS ARE UNGROUNDED. 2.4.4 PV EQUIPMENT SHALL BE GROUNDED ACCORDING TO NEC 690.43 AND MINIMUM NEC TABLE 250.122. 2.4.5 METAL PARTS OF MODULE FRAMES, MODULE RACKING, AND ENCLOSURE CONSIDERED GROUNDED IN ACCORD WITH 250.134 AND 250.136(A). 2.4.6 EACH MODULE WILL BE GROUNDED USING WEEB GROUNDING CLIPS AS SHOWN IN MANUFACTURER DOCUMENTATION AND APPROVED BY THE AHJ. IF WEEBS ARE NOT USED, MODULE GROUNDING LUGS MUST BE INSTALLED AT THE SPECIFIED GROUNDING LUG HOLES PER THE MANUFACTURERS' INSTALLATION REQUIREMENTS. 2.4.7 THE GROUNDING CONNECTION TO A MODULE SHALL BE ARRANGED SUCH THAT THE REMOVAL OF A MODULE DOES NOT INTERRUPT A GROUNDING CONDUCTOR TO ANOTHER MODULE. 2.4.8 GROUNDING AND BONDING CONDUCTORS, IF INSULATED, SHALL BE COLORED GREEN OR MARKED GREEN IF #4 AWG OR LARGER [NEC 250.119] 2.4.9 THE GROUNDING ELECTRODE SYSTEM COMPLIES WITH NEC 690.47 AND NEC 250.50 THROUGH 250.106. IF EXISTING SYSTEM IS INACCESSIBLE, OR INADEQUATE, A GROUNDING ELECTRODE SYSTEM PROVIDED ACCORDING TO NEC 250, NEC 690.47 AND AHJ. 2.4.10 DC PV ARRAYS SHALL BE PROVIDED WITH DC GROUND-FAULT PROTECTION MEETING THE REQUIREMENTS OF 690.41(B)(1) THROUGH (3) TO REDUCE FIRE HAZARDS 2.5.1 INTERCONNECTION NOTES: 2.5.2 LOAD-SIDE INTERCONNECTION SHALL BE IN ACCORDANCE WITH [NEC 705.12] 2.5.3 THE SUM OF 125 PERCENT OF THE POWER SOURCE(S) OUTPUT CIRCUIT CURRENT AND THE RATING OF THE OVERCURRENT DEVICE PROTECTING THE BUSBAR SHALL NOT EXCEED 120 PERCENT OF THE AMPACITY OF THE BUSBAR, PV DEDICATED BACKFEED BREAKERS MUST BE LOCATED OPPOSITE END OF THE BUS FROM THE UTILITY SOURCE OCPD [NEC 705.12(B)(3)(2)]. 2.5.4 AT MULTIPLE ELECTRIC POWER SOURCES OUTPUT COMBINER PANEL, TOTAL RATING OF ALL OVERCURRENT DEVICES SHALL NOT EXCEED AMPACITY OF BUSBAR. HOWEVER, THE COMBINED OVERCURRENT DEVICE MAY BE EXCLUDED ACCORDING TO NEC 705.12 (B)(3)(3). 2.5.5 FEEDER TAP INTERCONNECTION (LOAD SIDE) ACCORDING TO NEC 705.12 (B)(1) AND (2) 2.5.6 SUPPLY SIDE TAP INTERCONNECTION ACCORDING TO NEC 705.11 WITH SERVICE ENTRANCE CONDUCTORS IN ACCORDANCE WITH NEC 230.42 2.5.7 BACKFEEDING BREAKER FOR ELECTRIC POWER SOURCES OUTPUT IS EXEMPT FROM ADDITIONAL FASTENING [NEC 705.12 (E)]. 2.6.1 DISCONNECTION AND OVER-CURRENT PROTECTION NOTES: 2.6.2 DISCONNECTING SWITCHES SHALL BE WIRED SUCH THAT WHEN THE SWITCH IS OPENED THE CONDUCTORS REMAINING ENERGIZED ARE CONNECTED TO THE TERMINALS MARKED “LINE SIDE” (TYPICALLY THE UPPER TERMINALS). 2.6.3 DISCONNECTS TO BE ACCESSIBLE TO QUALIFIED UTILITY PERSONNEL, BE LOCKABLE, AND BE A VISIBLE-BREAK SWITCH. 2.6.4 BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED. THEREFORE BOTH MUST OPEN WHERE A DISCONNECT IS REQUIRED, ACCORDING TO NEC 690.13. 2.6.5 ISOLATING DEVICES OR EQUIPMENT DISCONNECTING MEANS SHALL BE INSTALLED IN CIRCUITS CONNECTED TO EQUIPMENT AT A LOCATION WITHIN THE EQUIPMENT, OR WITHIN SIGHT AND WITHIN 10 FT. OF THE EQUIPMENT. AN EQUIPMENT DISCONNECTING MEANS SHALL BE PERMITTED TO BE REMOTE FROM THE EQUIPMENT WHERE THE EQUIPMENT DISCONNECTING MEANS CAN BE REMOTELY OPERATED FROM WITHIN 10 FT. OF THE EQUIPMENT, ACCORDING TO NEC 690.15 (A). 2.6.6 PV SYSTEM CIRCUITS INSTALLED ON OR IN BUILDINGS SHALL INCLUDE A RAPID SHUTDOWN FUNCTION TO REDUCE SHOCK HAZARD FOR EMERGENCY RESPONDERS IN ACCORDANCE WITH 690.12(A) THROUGH (D) 2.6.7 ALL OCPD RATINGS AND TYPES SPECIFIED ACCORDING TO NEC 690.8, 690.9, AND 240. 2.6.8 BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED, THEREFORE BOTH REQUIRE OVER-CURRENT PROTECTION, ACCORDING TO NEC 240.21. (SEE EXCEPTION IN NEC 690.9) 2.6.9 IF REQUIRED BY AHJ, SYSTEM WILL INCLUDE ARC-FAULT CIRCUIT PROTECTION ACCORDING TO NEC 690.11 AND UL1699B. 2.7.1 WIRING & CONDUIT NOTES: 2.7.2 ALL CONDUIT AND WIRE WILL BE LISTED AND APPROVED FOR THEIR PURPOSE. CONDUIT AND WIRE SPECIFICATIONS ARE BASED ON MINIMUM CODE REQUIREMENTS AND ARE NOT MEANT TO LIMIT UP-SIZING. 2.7.3 ALL CONDUCTORS SIZED ACCORDING TO NEC 690.8, NEC 690.7. 2.7.4 EXPOSED PV SOURCE CIRCUITS AND OUTPUT CIRCUITS SHALL USE WIRE LISTED AND IDENTIFIED AS PHOTOVOLTAIC (PV) WIRE [690.31 (C)]. PV MODULES WIRE LEADS SHALL BE LISTED FOR USE ON PV ARRAYS, ACCORDING TO NEC 690.31 (A). 2.7.5 PV WIRE BLACK WIRE MAY BE FIELD-MARKED WHITE [NEC 200.6 (A)(5)]. 2.7.6 MODULE WIRING SHALL BE LOCATED AND SECURED UNDER THE ARRAY. 2.7.7 ACCORDING TO NEC 200.7, UNGROUNDED SYSTEMS DC CONDUCTORS COLORED OR MARKED AS FOLLOWS: DC POSITIVE- RED, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREEN DC NEGATIVE- BLACK, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREEN 2.7.8 AC 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 MARKED ORANGE [NEC 110.15]. *NEC2020I2 *NEC2020I2 B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 G-001.00 NOTESSigned 12/04/2023 GENERAL NOTES 1. FIELD VERIFY ALL MEASUREMENTS 2. ITEMS BELOW MAY NOT BE ON THIS PAGE 3. THE SOLAR PANELS ARE LESS THAN 4 FEET B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 A-101.00 SITE PLAN ENTRANCE AREA OF WORK UTILITY METER PROPERTY LINE N EW S 01/32" = 1'-0" SITE PLAN01 16' 32' AC DISCONNECT NOTE: READILY ACCESSIBLE OPEN BLADE AC SYSTEM DISCONNECT VISIBLE FROM APPROACH TO RESIDENCE 60A 240V LOCATED EXTERIOR ON WALL NEAR METER NEMA 3R L A D Y S L I P P E R L N TOTAL SYSTEM KWAC SIZE: 7.600 kWAC SOLAR REC METER - CUSTOMER OWNED TOP LUGS TO SOLAR GENERATION (LOAD) BOTTOM LUGS TO UTILITY (LINE) LOCATED EXTERIOR SOLAR REC METER - CUSTOMER OWNED 49'-2" 109'-2" 26'-7" 90'-8" AUTOMATIC TRANSFER SWITCH Signed 12/04/2023 GENERAL NOTES 1. FIELD VERIFY ALL MEASUREMENTS 2. ITEMS BELOW MAY NOT BE ON THIS PAGE 3. THE SOLAR PANELS ARE LESS THAN 4 FEET MODULE: REC SOLAR REC420AA PURE-R 420 WATTS 44'' 68.1'' SQUARE FOOTAGE OF ROOF: 2937.64 SQ. FT. SQUARE FOOTAGE OF ARRAY: 499.4 SQ. FT. PERCENTAGE OF ROOF COVERED BY THE ARRAYS: 17.00% B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 A-102.00 ELECTRICAL PLAN NEW S03/32" = 1'-0' ELECTRICAL PLAN015'-4" 10'-8' A MODULE STRINGING B MODULE STRINGING C MODULE STRINGING D MODULE STRINGING ARRAY 1 - 10.080 KW [x24] (N) MODULES TILT: 27 DEGREES ROOF PITCH: 6:12 AZIMUTH: 222 DEGREES FIRE CLEARANCE (E) (1) UTILITY METER EXTERIOR PV EQUIPMENT (E) (1) MAIN ELECTRICAL PANEL (N) (1) INVERTER (N) (1) SOLAR REC METER - CUSTOMER OWNED A TOTAL SYSTEM KWAC SIZE: 7.600 kWAC SOLAR REC METER - CUSTOMER OWNED TOP LUGS TO SOLAR GENERATION (LOAD) BOTTOM LUGS TO UTILITY (LINE) LOCATED EXTERIOR CONDUIT WILL NOT BE PLACED WITHIN FIRE SETBACKS AS PER NFPA 1 2021 INTERIOR PV EQUIPMENT (N) (1) PV DISCONNECT (N) (1) JUNCTION BOX 3' FIRE ACCESS PATH B C D A A AA A BB B B B C C CC C DD D D D 18" FIRE ACCESS PATH 18" FIRE ACCESS PATH 3' FIRE ACCESS PATH (N) (1) AUTOMATIC TRANSFER SWITCH GENERAL NOTES 1. FIELD VERIFY ALL MEASUREMENTS 2. ITEMS BELOW MAY NOT BE ON THIS PAGE 3. THE SOLAR PANELS ARE LESS THAN 4 FEET MODULE: REC SOLAR REC420AA PURE-R 420 WATTS 44'' 68.1'' B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 A-103.00 SOLAR ATTACHMENT PLAN 01/8" = 1'-0" SOLAR ATTACHMENT PLAN014' 8'NEW SROOF RAFTERS ROOF MATERIAL IS ASPHALT SHINGLE FLUSH MOUNT SOLAR MODULES ATTACHED TO ROOF SURFACE (SEE SHEET S-501.00 FOR MOUNTING DETAILS) ROOF PITCH: 6:12 ROOF RATING AND CLASSIFICATION: B. 37'-2" Signed 12/04/2023 GENERAL NOTES 1. FIELD VERIFY ALL MEASUREMENTS 2. ITEMS BELOW MAY NOT BE ON THIS PAGE 3. THE SOLAR PANELS ARE LESS THAN 4 FEET B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 A-104.00 ROOF PLAN 01 ROOF PLAN NOT TO SCALE Signed 12/04/2023 NOTE: READILY ACCESSIBLE OPEN BLADE AC SYSTEM DISCONNECT VISIBLE FROM APPROACH TO RESIDENCE 60A 240V LOCATED EXTERIOR ON WALL NEAR METER NEMA 3R NOTE: MARKING IS REQUIRED ON INTERIOR AND EXTERIOR DIRECT-CURRENT (DC) CONDUIT, ENCLOSURES, RACEWAYS, CABLE ASSEMBLIES, JUNCTION BOXES, INVERTERS AND DISCONNECTS SYSTEM EQUIPPED WITH RAPID SHUTDOWN DISCONNECT PER NEC 690.12 SYSTEM COMPLIANT WITH NEC 690.13 4 (24) REC SOLAR REC420AA PURE-R (1) TESLA 7.6 KW 21 A 6 IN BRANCH L2N G G L1 B 6 IN BRANCH V (8) TESLA POWER SOLAR SHUTDOWN DEVICE SOLAR REC METER - CUSTOMER OWNED NOTE: TOP LUGS TO SOLAR GENERATION (LOAD) BOTTOM LUGS TO UTILITY (LINE) LOCATED EXTERIOR TOP LUGS BOTTOM LUGS 5C 6 IN BRANCH G F1-2 40A FUSES AC DISCONECT, 60A 3 JUNCTION BOX D 6 IN BRANCH N G NN L2 L1 (E) UTILITY METER #60049338 (E) GENERATOR TO (E) LOADS G L2 L1 N TO UTILITY GRID (UG) L1 L2 N(E) GROUNDING ELECTRODE GROUND ROD (E) MAIN 200A (E)MAIN ELECTRICAL PANEL 240/120 V 1Ø, 3W MAIN BUSS: 200A EQUIPMENT LEFT OF LINE IS (N) NEW UNLESS OTHERWISE NOTED. EQUIPMENT RIGHT OF LINE IS (E) EXISTING UNLESS OTHERWISE NOTED. TAP (E) AUTOMATIC TRANSFER SWITCH CONDUCTOR AND CONDUIT SCHEDULE W/ELECTRICAL CALCULATIONS ID TYPICAL CONDUCTOR CONDUIT CURRENT-CARRYING CONDUCTORS IN CONDUIT OCPD EGC TEMP. CORR. FACTOR CONDUIT FILL FACTOR CONT. CURRENT MAX. CURRENT (125%)BASE AMP.DERATED AMP.TERM. TEMP. RATING AMP. @ TERMINAL 1 4 10 AWG PV WIRE, COPPER FREE AIR 2 N/A 6 AWG BARE, COPPER 0.96 (32.7 °C)1 11.11A 13.89A 55A 52.8A 75°C 50A 2 1 10 AWG THWN-2, COPPER 0.75'' DIA EMT 8 N/A 10 AWG THWN-2, COPPER 0.96 (32.7 °C)0.7 11.11A 13.89A 40A 26.88A 75°C 35A 3 1 8 AWG THWN-2, COPPER 0.75'' DIA EMT 2 N/A 8 AWG THWN-2, COPPER 0.96 (32.7 °C)1 32A 40A 55A 52.8A 75°C 50A 4 1 8 AWG THWN-2, COPPER 0.75'' DIA EMT 2 40A 8 AWG THWN-2, COPPER 0.96 (32.7 °C)1 32A 40A 55A 52.8A 75°C 50A 5 1 6 AWG THWN-2, COPPER 0.75'' DIA EMT 2 N/A 6 AWG THWN-2, COPPER 0.96 (32.7 °C)1 32A 40A 75A 72A 75°C 65A B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 E-601.00 LINE DIAGRAM A MODULE STRINGING B MODULE STRINGING C MODULE STRINGING D MODULE STRINGING REF.QTY.MAKE AND MODEL RATED CURRENT MAX RATED VOLTAGE SW1 1 SQUARE D D222NRB OR EQUIV.60A 240VAC SYSTEM SUMMARY INVERTER #1 MPPT #1 MPPT #2 MPPT #3 MPPT #4 MODULES IN SERIES 6 6 6 6 ARRAY VMP 300V 300V 300V 300W ARRAY IMP 8.4A 8.4A 8.4A 8.4A ARRAY VOC 356.4V 356.4V 356.4V 356.4V ARRAY MAX VOC 400.1V 400.1V 400.1V 400.1V ARRAY ISC 8.89A 8.89A 8.89A 8.89A ARRAY STC POWER 10,080W ARRAY PTC POWER 9,595W MAX AC CURRENT 32A MAX AC POWER 7,680W DERATED (CEC) AC POWER 7,600W DISCONNECTS INVERTERS OCPDS MODULES ASHRAE EXTREME LOW -25.9°C (-14.6°F), SOURCE: BARNES MUNI (42.16°; -72.72°) ASHRAE 2% HIGH 32.7°C (90.9°F), SOURCE: BARNES MUNI (42.16°; -72.72°) REF.QTY.RATED CURRENT MAX VOLTAGE F1-2 2 40A 240VAC REF.QTY.MAKE AND MODEL PMAX PTC ISC IMP VOC VMP TEMP. COEFF. OF VOC FUSE RATING PM1-24 24 REC SOLAR REC420AA PURE-R 420W 399.8W 8.89A 8.4A 59.4V 50V -0.143V/°C (-0.24%/°C)25A REF.QTY.MAKE AND MODEL AC VOLTAGE GROUND OCPD RATING RATED POWER MAX OUTPUT CURRENT MAX INPUT CURRENT MAX INPUT VOLTAGE CEC WEIGHTED EFFICIENCY I1 1 TESLA 7.6 KW 240V FLOATING 40A 7600W 32A 4x11A 600V 97.5% BILL OF MATERIALS CATEGORY MAKE MODEL NUMBER REF QTY UNIT QTY/UNIT DESCRIPTION MODULE REC SOLAR REC420AA PURE-R PM1-24 24 PIECES 1 REC SOLAR REC420AA PURE-R 420W 144 HALF-CELLS, MONOCRYSTALLINE SILICON INVERTER TESLA 7.6 KW I1 1 PIECE 1 TESLA 7.6 KW 7600W INVERTER DISCONNECT SQUARE D D222NRB SW1 1 PIECE 1 SQUARE D D222NRB, FUSED, 2-POLE, 60A, 240VAC OR EQUIVALENT PRODUCTION METER GENERIC MANUFACTURER GEN-METER-80A M1 1 PIECE 1 ELECTRICAL METER, OWNER APPROVED WIRING GEN-10-AWG-PV-WIRE-CU WR1 360 FEET 1 10 AWG PV WIRE, COPPER (POSITIVE AND NEGATIVE) WIRING GEN-6-AWG-BARE-CU WR1 180 FEET 1 6 AWG BARE, COPPER (GROUND) WIRING GEN-10-AWG-THWN-2-CU-RD WR2 80 FEET 1 10 AWG THWN-2, COPPER, RED (POSITIVE) WIRING GEN-10-AWG-THWN-2-CU-BLK WR2 80 FEET 1 10 AWG THWN-2, COPPER, BLACK (NEGATIVE) WIRING GEN-10-AWG-THWN-2-CU-GR WR2 20 FEET 1 10 AWG THWN-2, COPPER, GREEN (GROUND) WIRING GEN-8-AWG-THWN-2-CU-RD WR3-4 20 FEET 1 8 AWG THWN-2, COPPER, RED (LINE 1) WIRING GEN-8-AWG-THWN-2-CU-BLK WR3-4 20 FEET 1 8 AWG THWN-2, COPPER, BLACK (LINE 2) WIRING GEN-8-AWG-THWN-2-CU-WH WR3-4 20 FEET 1 8 AWG THWN-2, COPPER, WHITE (NEUTRAL) WIRING GEN-8-AWG-THWN-2-CU-GR WR3-4 20 FEET 1 8 AWG THWN-2, COPPER, GREEN (GROUND) WIRING GEN-6-AWG-THWN-2-CU-RD WR5 10 FEET 1 6 AWG THWN-2, COPPER, RED (LINE 1) WIRING GEN-6-AWG-THWN-2-CU-BLK WR5 10 FEET 1 6 AWG THWN-2, COPPER, BLACK (LINE 2) WIRING GEN-6-AWG-THWN-2-CU-WH WR5 10 FEET 1 6 AWG THWN-2, COPPER, WHITE (NEUTRAL) WIRING GEN-6-AWG-THWN-2-CU-GR WR5 10 FEET 1 6 AWG THWN-2, COPPER, GREEN (GROUND) WIREWAY GEN-EMT-0.75'' DIA WW2-5 50 FEET 1 EMT CONDUIT, 0.75'' DIA OCPD GENERIC MANUFACTURER GEN-FU-40A-240VAC F1-2 2 PIECES 1 FUSE, 40A, 240VAC TRANSITION BOX GENERIC MANUFACTURER GEN-AWB-TB-4-4X JB1 1 PIECE 1 TRANSITION/PASS-THROUGH BOX, WITH 4 TERMINAL BLOCKS B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 E-602.00 DESIGN TABLES ELECTRICAL SHOCK HAZARD TERMINALS ON THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION WARNING LABEL 1 AT EACH DISCONNECTING MEANS FOR PHOTOVOLTAIC EQUIPMENT (2" X 4"). [NEC 690.13]. POWER SOURCE OUTPUT CONNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE WARNING LABEL 2 AT POINT OF INTERCONNECTION OVERCURRENT DEVICE (2" X 4"). [NEC 705.12(B)(2)(3)(B)]. LABEL 4 AT EXPOSED RACEWAYS, CABLE TRAYS, AND OTHER WIRING METHODS; SPACED AT MAXIMUM 10 FT SECTION OR WHERE SEPARATED 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 SHUTDOWN SWITCH FOR SOLAR PV SYSTEM LABEL 5 AT RAPID SHUTDOWN DISCONNECT SWITCH (5 1/4" X 2"). [NEC 690.56(C)(3)]. LABEL 9 AT EACH AC DISCONNECTING MEANS (4" X 1"). [NEC 690.13(B)]. LABEL 10 AT EACH DC DISCONNECTING MEANS (4" X 1"). [NEC 690.13(B)]. SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN ARRAY SOLAR ELECTRIC PV PANELS LABEL 3 AT RAPID SHUTDOWN SYSTEM (3 3/4" X 5 1/4"). [NEC 690.56(C)(1)(A)]. LABELING NOTES 1.1 LABELING REQUIREMENTS BASED ON THE 2023 NATIONAL ELECTRICAL CODE, INTERNATIONAL FIRE CODE 605.11, OSHA STANDARD 1910.145, ANSI Z535 1.2 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/SUNLIGHT RESISTANT AND CANNOT BE HAND-WRITTEN PER NEC 110.21(B) DIRECTORY PERMANENT PLAQUE OR DIRECTORY PROVIDING THE LOCATION OF THE SERVICE DISCONNECTING MEANS AND THE PHOTOVOLTAIC SYSTEM DISCONNECTING MEANS 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, A DIRECTORY IN ACCORDANCE WITH 705.10 SHALL BE PROVIDED AT EACH PV SYSTEM DISCONNECTING MEANS. PV SYSTEM EQUIPMENT AND DISCONNECTING MEANS SHALL NOT BE INSTALLED IN BATHROOMS [NEC 690.4(D),(E)] PHOTOVOLTAIC SOLAR AC DISCONNECT CAUTION MULTIPLE SOURCES OF POWER LABEL 6 AT UTILITY METER (5 3/4" X 1 1/8") [NEC 690.56(B)] WARNING TRIPLE POWER SUPPLY SOURCES: UTILITY GRID, BATTERY AND PV SOLAR ELECTRIC SYSTEM LABEL 7 AT POINT OF INTERCONNECTION (2 3/4" X 1 5/8"). [NEC 705.12(B)(3)] WARNING SOLAR ELECTRIC CIRCUIT BREAKER IS BACKFED LABEL 8 AT POINT OF INTERCONNECTION (2" X 1"). [NEC 705.12(B)(3)] PHOTOVOLTAIC SOLAR DC DISCONNECT PHOTOVOLTAIC POWER SOURCE LABEL 11 AT POINT OF INTERCONNECTION, MARKED AT DISCONNECTING MEANS (4" X 2"). [NEC 690.54] AC DISCONNECT PHOTOVOLTAIC SYSTEM POWER SOURCE RATED AC OUTPUT CURRENT NOMINAL OPERATING AC VOLTAGE AMPS VOLTS LABEL 12 AT EACH DC DISCONNECTING MEANS (3" X 4"). [NEC 690.53]. MAXIMUM VOLTAGE MAX CIRCUIT CURRENT VDC AMPS DIRECT CURRENT PHOTOVOLTAIC POWER SOURCE INTERACTIVE PHOTOVOLTAIC SYSTEM CONNECTED PHOTOVOLTAIC SYSTEM DISCONNECT LOCATED SE SIDE OF THE HOUSE 32 240 8.89 400.1 B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 E-603.00 PLACARDS INVERTER (INSIDE) FRONT BACK !CAUTION! POWER TO THIS BUILDING IS ALSO SUPPLIED FROM ROOF MOUNTED SOLAR ARRAYS WITH SAFETY DISCONNECTS AS SHOWN: N E W S UTILITY METER SOLAR REC METER - CUSTOMER OWNED MAIN DISTRIBUTION UTILITY DISCONNECT (INSIDE) PV ARRAY PV DISCONNECT PROUDLY INSTALLED BY VALLEY SOLAR 413-584-8844 AUTOMATIC TRANSFER SWITCH NOTE: THE EXTERNAL DISCONNECT IS UNDERNEATH OF THE METER GENERAL NOTES 1. FIELD VERIFY ALL MEASUREMENTS 2. ITEMS BELOW MAY NOT BE ON THIS PAGE 3. THE SOLAR PANELS ARE LESS THAN 4 FEET S-501 D4 2 13 54 252423 8 27 ROOF SLOPE910 10 6 21 7 20 12141315182211 S-501 D5 SHEET KEYNOTES 1. ROOF MATERIAL: ASPHALT SHINGLE 2. ROOF STRUCTURE: SINGLE SPAN RAFTER 3. ATTACHMENT TYPE: IRONRIDGE FLASH VUE 4. MODULE MANUFACTURER: REC SOLAR 5. MODULE MODEL: REC420AA PURE-R 6. MODULE LENGTH: 68.1'' 7. MODULE WIDTH: 44'' 8. MODULE WEIGHT: 47.4 LBS. 9. SEE SHEET A-103 FOR DIMENSION(S) 10. MIN. FIRE OFFSET: 18" FROM RIDGE, AT LEAST 2 PATHWAYS TO A STREET OR DRIVEWAY MINIMUM 3' WIDE. 11. RAFTER SPACING: 16 IN. O.C. 12. RAFTER SIZE: 2X8 IN. NOMINAL 13. LAG BOLT DIAMETER: BOLT/SCREW SUPPLIED WITH RACKING. 14.LAG BOLT EMBEDMENT: 2.5 IN. 15. TOTAL # OF ATTACHMENTS: 91. 16. TOTAL AREA: 499.4 SQ. FT. 17. TOTAL WEIGHT: 1252.01 LBS. 18. WEIGHT PER ATTACHMENT: 13.76 LBS. 19. DISTRIBUTED LOAD: 2.51 PSF 20. MAX. HORIZONTAL STANDOFF: 48 IN. 21. MAX. VERTICAL STANDOFF: IN ACCORDANCE WITH MODULE MANUFACTURER'S INSTRUCTIONS. 22. STANDOFF STAGGERING: YES 23. RAIL MANUFACTURER (OR EQUIV.): IRONRIDGE 24. RAIL MODEL (OR EQUIVALENT): AIRE A1 25. RAIL WEIGHT: 0.42 PLF 26. MAX. RAFTER SPAN: N/A. 27. MODULE CLEARANCE: 3 IN. MIN., 6 IN. MAX. B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 S-501.00 ASSEMBLY DETAILS D4 DETAIL (TRANSVERSE) NOT TO SCALE D5 DETAIL (LONGITUDINAL) NOT TO SCALE D1 RACKING DETAIL (TRANSVERSE) NOT TO SCALE D3 RACKING DETAIL (TOP) NOT TO SCALE D2 RACKING DETAIL (LONGITUDINAL) NOT TO SCALE ROOF PITCH: 6:12 ROOF RATING AND CLASSIFICATION: B. Signed 12/04/2023 B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 R-001.00 RESOURCE DOCUMENT R-002.00 RESOURCE DOCUMENT B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 R-003.00 RESOURCE DOCUMENT B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 R-004.00 RESOURCE DOCUMENT B F A D E 2 3 UNAUTHORIZED USE OF THIS DRAWING SET WITHOUT WRITTEN PERMISSION FROM CONTRACTOR IS IN VIOLATION OF U.S. COPYRIGHT LAWS AND WILL BE SUBJECT TO CIVIL DAMAGES AND PROSECUTIONS. ENGINEER OF RECORD V.P.DESIGN BY: 30.11.2023 M.M. PAPER SIZE: 11" x 17" (ANSI B) A C D E G H B C F G H 1 4 5 6 CONTRACTOR VALLEY SOLAR LLC PHONE: LIC. NO.: DATE: CHECKED BY: REVISIONS HIC. NO.: ELE. NO.: 413-584-8844 116 PLEASANT ST SUITE 321, EASTHAMPTON, MA 01027 ADRESS: NEW PV SYSTEM: 10.080 kWp JOHN W HORNOR RESIDENCE 46 LADYSLIPPER LN, FLORENCE, MA 01062 APN: NHAMM0035B0224L0001 186338 664A1 R-005.00 RESOURCE DOCUMENT