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MEN: ------ ,UMOUNT <br />INSTALLCOMBO (END) CLAMPS: <br />InstaLl Combo Clamps starting at the aligned end of <br />rails. <br />INSTALL COMBO (MID) CLAMPS: <br />Clamp assemblies may be positioned in rail near <br />point of use prior to module placement. <br />Note: The clamps may be installed above splice <br />Locations. <br />COMBO CLAMP INSTALLATION 19, <br />INSTALLATION -GUIDE ; PAGE <br />INSERT COMBO CLAMP: <br />Insert Combo Clamp from one side of <br />the rail nut into the rail and click in <br />the other side. Ensure that the rail nut <br />profile is seated in the rail profile. <br />PLACE ADJACENT MODULE AGAINST <br />CLAMPS: <br />Modules must be tight against clamps <br />with no gaps. Tighten bolt to required <br />torque. <br />TORQUE VALUE: 15 ft-Lbs <br />INSTALL END MODULE: Position first module onto rails <br />and engage module frame with end clamps. Hold clamp <br />in place against module white tightening bolt. <br />TORQUE VALUE: 15 ft-ibs. <br />Note: Ensure a minimum distance of 1" from the end of <br />the module to end of rail. <br />INSTALL REMAINING MODULES: <br />Proceed with module installation. Engage each clamp <br />with previously positioned module. <br />on: BONDING CONNECTIONS & GROUNDING PATHS 22 <br />mom: ;--[ --------------- UMOUNT --------------------------------- INSTALLATION _GUI II PAGE <br />i / 1�'t.J�21► <br />BONDING MICROINVERTER MOUNT <br />© Stainless steetTooth Lock washer beneath the MLPE flange <br />remove anodization on the MLPE and bonds. <br />© Tabs on the stainless steel washer remove anodization on <br />the rail and bonds. <br />NOTE: See Page 17 for installation details <br />ALTERNATE ROW -TO -ROW BONDING PATHS <br />Q Row -to -row module bonding is accomplished with bonding clamp <br />with 2 integral bonding pins. <br />Alternate method by connecting clips on either module to complete <br />© the bonding path. <br />NOTE: <br />• See Page 16 for installation details <br />• Row -to -row module bonding certified for single -use only <br />ON: BONDING CONNECTIONS & GROUNDING PATHS Lumio <br />■NE; <br />■0 )__U__M_0__U__N_T INSTALLATION GUIDE 1 PAGE <br /><Moo� <br />q+�7C naa <br />k/'yigo�+n. <br />h/B�N4t. <br />BONDING COMBO MID -END CLAMPASSEMBLY BONDING RAIL SPLICE <br />Q Aluminum combo mid -end clamp cap with stainless steel bonding pins that pierce Q Bonding Hardware creates bond between Splice bar and <br />module frame anodization to bond module to module through clamp each rail section. <br />© Stainless steel bolt bonds aluminum clamp to stainless steel Hex bolt © Aluminum splice bar spans across rail gap to create rail <br />Q Aluminum combo mid -end clamp rail nut with stainless steel bonding pins that to rail bond. Rait on at least one side of splice will be VERSION <br />fierce rail anodization to bond module to module through clam grounded. <br />P 9 P DESCRIPTION DATE REV <br />NOTE: <br />NOTE: See Page 19 for installation details. See Page 15 for installation details INITIAL RELEASE 06/24/2023 UR <br />• Splice certified for single -use only <br />MODULE <br />FRAME <br />BONDING BETWEEN THERMAL BREAKS <br />Q Lug is connected at the end of each thermal break RACK SYSTEM GROUNDING <br />to the rail. <br />Q Solid copperwire is connected across the gap to Q Tabs on the stainless-steeL washer pierce anodization on the rail to bond rail to ground wire. <br />bond the two ends. © Solid copper wire connected to Lug is routed to provide final system ground connection. <br />NOTE: See Page 5 for installation details. NOTE: See Page 16 for installation details and alternate racking system grounding methods. <br />PROJECT NAME <br />N <br />Q <br />NEWAPPENDIX A ■ o o <br />■■ UMOUNT SYSTEM CERTIFICATION: PAGE w °N° o w o <br />- ----- - - - - - - -- ------------------------------- - - _ > o CDw <br />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 Q N o <br />and Panels). This standard included electrical grounding, electrical bonding, mechanical Load and fire resistance testing. `^ O > <br />Uj <br />SYSTEM LEVEL FIRE CLASSIFICATION V J <br />��//�� � Z W <br />VJ <br />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 z i Q � (� O m <br />fire portion of UL 2703. NXT UMOUNT has achieved system level performance for steep sloped roofs.5 stem Level fire performance is inherent in the NXT UMOUNT <br />P Ys P P P Y P Z<> c <br />design, and no additional mitigation measures are required. The fire classification rating is only valid on roof pitches greater than 2:12 (slopes � 2 inches per foot, or <br />9.5 degrees).The system is to be mounted over fire resistant roof covering rated forthe application.There is no required minimum or maximum height Limitation above O <br />the roof deck to maintain the system fire rating for NXT UMOUNT. Approved Module Types & System Level. Fire Ratings are Listed below: o <br />a o J_ Z <br />Module Type System Level FlreRatlng RailDirectlon Module Orientation Q <br />Type 1, 2,3 with metal frame,10 ClassA Parallel OR Perpendicular to Ridge Landscape OR Portrait mow/ <br />with <br />metal frame, 19,22,25,29, N LL_ Z j _LiU <br />&30 <br />MECHANICAL LOAD TEST MODULES > Q <br />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 w <br />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 <br />determine applicabiL'ity),and clear and dark anodized aluminum frames. PV modules may have a reduced Load rating, independent of the NXT UMOUNT rating. Please <br />consult the PV module manufacturer's installation guide for more information. <br />Tested Module UL2703 Certification Load Ratings I Tested Loads Tested Module Area <br />SunPower SPR-A440 -COM Down: 50 psf, Up: SO psf, Slope: 15 psf Down: 75 psf, Up: 75 psf, Slope: 23 psf 21.86sgft SHEET NAME <br />JinkoJKM-xxxM 72HL4-V Down: 50.12 psf, UP:22.28 psf, Slope: 8 psf Down:75.19 psf, Up! 33.42 psf, Slope;12 psf 27.76 sq ft <br />NOTE:Jinkomodulemechanicalloadvaluesdonotapplytothefollowingpartnumbers SPEC SHEETS <br />(shown on page 3); RLSPLCM 2, SBUTYLMI, SB UTYLD I, SHCLM PM 2, & SHC LMPD2 <br />UL2703 CERTIFICATION MARKING: SHEET SIZE <br />Unirac NXT UMOUNT is Listed to UL 2703. Certification marking is embossed on UNIRAC <br />aLL Combo Clamps as shown. Labels with additional certification information ANSI B <br />are provided with clamps and must be applied to the NXT UMOUNT Rail at the w <br />edge of the array. `A;=, 1 1 rr /\ X 1 7rr <br />Note: This racking system may be used to ground and/or mount a PV module C v'• US <br />complying with UL1703/UL61730 only when the specific module has been 266909 SHEET NUMBER <br />evaluated for grounding and/or mounting in compliance with the included 1V <br />instructions. <br />PV-13 <br />