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CITY OF SANTA ANA ■am MECHANICAL LOAD TEST 27 M - �. ■■ i JYSTEM CEkTIFIIlAi1ON I PAGE The NXT UMOUNT system has been certified and listed to the UL 2703 standard (Rack Mounting Systems and Clamping Devices for Flat -Plate Photovoltaic Modules and Panels). This standard included electrical grounding, electrical bonding, mechanical load and fire resistance testing. SYSTEM LEVEL FIRE CLASSIFICATION The system fire class rating requires installation in the manner specified in the NXT UMOUNT Installation Guide. NXT UMOUNT has been classified to the system level fire onion of UL 2703. NXT UMOUNT has achieved system level performance for steep sloped roofs and low sloped roofs.5 stem level fire performance is inherent P Y Pe P P P Y in the NXT UMOUNT design, and no additional mitigation measures are required. See table below for definition of steep sloped and low sloped roofs.The system is to be mounted over fire resistant roof covering rated for the application. There is no required minimum or maximum height limitation above the roof deck to maintain the system fire rating for NXT UMOUNT.Approved Module Types & System Level Fire Ratings are listed below: Roof Type Module Type System Level Fire Rating Rail Direction Module Orientation Steep Slope - roof pitches 3 2 in/ft Type 1, 2, 3 with metal frame, 10 with metalframe, 19,22,25,29,&30 Class [parallel OR Perpendicular to Ridge Landscape OR Portrait Low Slope - roof pitches < 2in/ft Type 1, 2, 29, & 30 MECHANICAL LOAD TEST MODULES The modules selected for UL 2703 mechanical load testing were selected to represent the broadest range possible for modules on the market. The tests performed covers module frame thicknesses greater than or equal to 1.0 mm, single and double wall frame profiles (some complex frame profiles could require further analysis to determine applicability), and clear and dark anodized aluminum frames. PV modules may have a reduced load rating, independent of the NXT UMOUNT rating. Please consult the PV module manufacturer's installation guide for more information. Tested Module Design Load Ratings Tested loads Tested Module Area SunPowerSPR-A440-COM Down: 50 psf, Up: 50 psf, Slope: 15 psf Down: 75 psf, Up: 75 psf, Slope: 23 psf 21.86sgIt Jinko JKM-xxxM 72HL4-V Down: 39.47 psf, Up: 22.28 psf, Slope: 8 psf Down: 59.20 psf, Up: 33.42 psf, Slope:12 psf 27.76 sq ft Q Cells 0 Peak Duo XL-Gll.3/BFG Down: 37.06 psf, Up: 20.97 psf, Slope: 7.53 psf Down: 55.60 psf, Up: 31.46 psf, Slope:11.3 psf 29.49 sq ft QPEAK.DUO XL-G11S.3/BFG580 Down: 36.50 psf, Up:20.96 psf, Slope:7.6 psf Down: 54.80 psf, Up:31.45 psf, Slope:11.4 psf 30.05 sq ft ■�� COMBO CLAMP INSTALLATION; 24 ■■ U__M_0_U_N_T --------------------------------- INSTALLATION GUI[ ; PAGE 0% r i INSTALLCOMBO (END) CLAMPS: Install Combo Clamps starting at the aligned end of rails. INSTALLCOMBO (MID) CLAMPS: Clamp assemblies may be positioned in rail near point of use prior to module placement. Note: The clamps may be installed above splice locations. PRO TIP Press the clamp assembly slightly into the rail to allow for easy sliding of clamp in the rail. OV 7 INSERT COMBO CLAMP: Insert Combo Clamp from one side of the rail nut into the rail and click in the other side. Ensure that the raft nut profile is seated in the rail profile. PLACE ADJACENT MODULE AGAINST CLAMPS: Modules must be tight against clamps with no gaps. Tighten bolt to required torque. TORQUE VALUE:15 ft-lbs INSTALL END MODULE: Position first module onto rails and engage module frame with end clamps. Hold clamp in place against module while tightening bolt. TORQUE VALUE: 15 ft-lbs. Note: Ensure a minimum distance of 1" from the end of the module to end of rail. INSTALL REMAINING MODULES: Proceed with module installation. Engage each clamp with previously positioned module. Note: Combo clamps are capable of securing module frames whose thickness varies from 30mm to 40mm. ■M SYSTEM GROUNDING M ■■ ------l --------------------------------------------------------NT-------------------------------------------INSTAIEATIUN ------------------GUIDE---------L PAGE --------- SYSTEM GROUNDING: Rails can be bonded using a MLPE & GROUNDING LUG (NULGMLP1), GROUND WEEBLUG k1 or ILSCO LAY IN LUG (GBL4DBT).At least one rail per row of modules in an array must be bonded to electrical ground. Each additional row of modules must be grounded with at least one rail lug per row or with a row -to -row bonding devise listed here. Note: See Page 5 for additional lugs required for expansion joints. SYSTEM GROUNDING WITH MLPE & GROUNDING LUG: Insert the T-nut in the rail by holding the plastic cone's tabs with thumb and middle finger. Rotate the clamp 90 deg in clockwise direction in the rail and release when aligned with rail Ensure that the T-nut is engaged in the rail profile. Place the grounding wire on the grounding plate on one of the sides of the bolt, parallel to the grounding plate flanges.Tighten bott. TORQUE VALUE: 6-12 AWG SOLID COPPER: 10 ft tbs NOTE: MLPE & GROUNDING LUG is single use only O *ee ALTERNATE SYSTEM GROUNDING WITH ILSCO LAY -IN LUG - UNIRAC P/N 00800913: Alternate Grounding Lug. Drill hole in rail 7/32• in diameter, deburr hole and bolt through one wall of rail. BOLT TOROUE VALUE: 5 ft lbs. ALTERNATE ROW GROUNDING WITH ALTERNATE ROW GROUNDING WITH N/S TERMINALTORQUE:4-6 AWG: 35in-lbs, 8 AWG: 25 in-tbs. N/S BONDING CLAMP: BONDING CLIP: Insert clamp between module rows and Fully seat bonding clip on each module IL WARNW§ tighten bolt. Range to provide bond across N/S module gap. Ensure Copper does contact Aluminum to avoid corrosion. TORQUE VALUE: 20 ft-lbs. NMI ° BONDING CONNECTIONS & GROUNDING PATHS ■ mom:U__M_0_U_N_T■■ INSTALLATION -GUIDE-:- PAGE �M0o 0 NXT .. t BONDING COMBO MID -END CLAMPASSEMBLY © Aluminum combo mid -end clamp cap with stainless steel bonding pins that pierce module frame anodization to bond module to module through clamp © Stainless steel bolt bonds aluminum clamp to stainless steel Hex bolt Q Aluminum combo mid -end clamp rail nut with stainless steel bonding pins that pierce rail anodization to bond module to module through clamp NOTE: See Page 20 for installation details. MODULE FRAME 1 Z,® L BONDING BETWEEN THERMAL BREAKS O Lug is connected at the end of each thermal break to the rail. © Solid copper wire is connected across the gap to bond the two ends. NOTE: See Page 5 for installation details. BONDING RAIL SPLICE Q Bonding Hardware creates bond between Splice bar and each rail section. © Aluminum splice bar spans across rail gap to create rail to rail bond. Rail on at least one side of splice will be grounded. NOTE: • See Page 16 for installation details • Splice certified for single -use only Coote�' © N,�ItP� wigF'xR RACK SYSTEM GROUNDING O Tabs on the grounding plate pierce anodization on the rail to bond rail to ground wire. I© Solid copper wire connected to lug is routed to provide final system ground connection. NOTE: See Page 17 for installation details and alternate racking system grounding P. Planning and Building Agen CMII=0WE:R EMPQR�'�rRT94OLAR FOR PORWIMSMANCI CLOVIS, CA 93611 TEL: (800) 306 6953 CSLB:1057693 Email: permits@mpwrsolar.com Ma ter ID: 10 #1057693 Scott Forster VERSION DESCRIPTION DATE REV INITIAL RELEASE 1 03-07-2025 UR PROJECT NAME Z O 0 0 U)w Q wiz w Q p O LL 00 U) U cal - in W �QULLIN Z Q U Z Qom` z Q Q = ❑ J Q Q ~ Z O Q H J_ SHEET NAME SPEC SHEETS SHEET SIZE ANSI B 11" X 17" SHEET NUMBER PV-16