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NX <br />2 3 <br />i <br />OEM <br />INSTALL COMBO (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 />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 />INSTALL END MODULE: Position first module onto rails <br />and engage module frame with end clamps. Hold clamp <br />in place against module while tightening bolt. <br />TORQUE VALUE: 15 ft-tbs. <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 />TORQUE VALUE: 15 ft-lbs- <br />�■ BONDING CONNECTIONS & GROUNDING PATHS <br />■MNI ; --------- 0)) _U -------- 0U_NT ---------------------------------- INSTALLATION -GUIDE-:- PA G-E <br />BONDING <br />GROUND <br />PLATE <br />0 <br />BONDING MICROINVERTER MOUNT <br />Q Stainless steel Tooth lock washer beneath the MLPE flange <br />remove anodization on the MLPE and bonds. <br />Q 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 />so: BONDING CONNECTIONS & GROUNDING PATHS ; ■ <br />Now: ; <br />■■ INSTALLATION GUIDE ; PAGE <br />-------------------------------------------------------------NT-------------------------------------------------------------- <br />--------- <br />--------- <br />Ax <br />G <br />RejlC RAIL <br />Kid ." <br />ha�wa�e�h9 Q <br />hd�a`ye�i'g - <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. Rail on at least one side of splice will be <br />pierce rail anodization to bond module to module through clamp grounded. <br />NOTE: See Page 19 for installation details. <br />BONDING BETWEEN THERMAL BREAKS <br />© Lug is connected at the end of each thermal break <br />to the rail. <br />Q Solid copper wire is connected across the gap to <br />bond the two ends. <br />NOTE: See Page 5 for installation details. <br />NOTE: <br />• See Page 15 for installation details <br />• Splice certified for single -use only <br />®. <br />RACK SYSTEM GROUNDING <br />Q Tabs on the stainless -steel washer pierce anodization on the rail to bond rail to ground wire. <br />Q Solid copper wire connected to lug is routed to provide final system ground connection. <br />NOTE: See Page 16 for installation details and alternate racking system grounding methods. <br />me: - NNE UMOUNT" APPENDIX A E <br />■■ SYSTEM CERTIFICATION: PACE <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 <br />and Panels).This standard included electrical grounding, electrical bonding, mechanical load and fire resistance testing. <br />SYSTEM LEVEL FIRE CLASSIFICATION <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 <br />fire portion of UL 2703. NXT UMOUNT has achieved system level performance for steep sloped roofs. System level fire performance is inherent in the NXT UMOUNT <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 <br />the roof deck to maintain the system fire rating for NXT UMOUNT Approved Module Types & System Level Fire Ratings are listed below: <br />Module Type I System Level Fire Rating I Rail Direction I Module Orientation <br />Type 1, 2, 3 with metal frame,10 Class A Parallel OR Perpendicular to Ridge Landscape OR Portrait <br />with metal frame, l9, 22, 25, 29, <br />& 30 <br />MECHANICAL LOAD TEST MODULES <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 <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 applicability), 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 I UL2703 Certification Load Ratings I Tested Loads Tested Module Area <br />SunPower SPR-A440-COM I Down: 50 psf, Up: 50 psf, Slope: 15 psf I Down: 75 psf, Up: 75 psf , Slope: 23 psf 21.86 sq ft <br />j J inko 1KM-xxxM 72HL4-V Down: 50.12 psf, Up: 22.28 psf, Slope: 8 psf I Down: 75.19 psf, Up: 33.42 psf, Slope: 12 psf 27.76 sq ft <br />NOTE: Jinko module mechanical load values do not apply to the following part numbers <br />(shown on page 3); RLSPLCM2, SBUTYLM1, SBUTYLDI, SHCLMPM2, & SHCLMPD2 <br />Lumlo <br />VERSION <br />I DESCRIPTION DATE REV <br />I INITIAL RELEASE 106/15/2023 I UR <br />PROJECT NAME <br />wD <br />b�w <br />�Q o <br />oUU)jw <br />z0�oo�w <br />Z W O) <br />O O <br />LU m X >a <br />W <br />cy) = LL <br />O <br />~ <br />O U) <br />�QN L j <br />V � <br />**IU <br />Z <br />� <br />LU <br />J <br />Q <br />W <br />D <br />SHEET NAME <br />SPEC SHEETS <br />O <br />N <br />00 <br />0 <br />O <br />CL <br />W <br />W <br />2 <br />D <br />Z <br />U <br />W <br />ON <br />UL2703 CERTIFICATION MARKING: <br />SHEET SIZE <br />Unirac NXT UMOUNT is listed to UL 2703. Certification marking is embossed on <br />UNIRAC <br />all Combo Clamps as shown. Labels with additional certification information <br />are provided with clamps and must be applied to the NXT UMOUNT Rail at the <br />ANSI B <br />edge of the array. <br />CIP <br />11 11 X 17" <br />Note: This racking system may be used to ground and/or mount a PV module <br />C US <br />complying with UL1703/UL61730 only when the specific module has been <br />266909 <br />SHEET NUMBER <br />evaluated for grounding and/or mounting in compliance with the included <br />Instructions. <br />PV-13 <br />