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PLANS - 23-00375 - 249 Jill Dr - Solar Panels
GENERAL NOTESCONTENTST-1 TITLE SHEET DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 REVISIONS:Owner:MCKAY WISE249 JILL DRREXBURG, ID 83440(479) 276-2999Solar Modules:24 VSUN VSUN405-108BMHInverters:(12)AP SYSTEM DS3-S MICROINVERTERSRacking:UNIRAC NXT(13 MOUNTING RAILS) - ALUMINUM RAILS = 14' LENGTHS(52 MOUNTING POINTS) - FOR "COMP SHINGLE" ROOFVICINITY MAPSTREET VIEWWISE RESIDENCEPHOTOVOLTAIC SYSTEM PROJECT -9.720 kW DC / 7.680 kW AC249 JILL DR REXBURG, ID 83440 WISE RESIDENCE SHEET #T-1PV-0PV-1PV-2PV-3E-1E-2E-3CS-MCS-ICS-MPCS-RSHEET NAMETITLE SHEETPROPERTY LAYOUTPV SITE PLANATTACHMENT DETAILSATTIC PICTURESELECTRICAL DIAGRAMMETER PICTURESWARNING LABELSMODULE SPEC SHEETINVERTER SPEC SHEETMOUNTING PT. SPEC SHEETRACKING SPEC SHEET1. ROOF TRUSSES 2x4" DF ON 24" ℄2. ALL MATERIALS AND WORKMANSHIP SHALL CONFORM TO THE LATEST ID CODE OF REGULATIONS, NATIONALELECTRICAL CODE EDITION AND ALL APPLICABLE LOCAL CODES AND REGULATIONS. (Construction shall comply with 2018 IBC, 2018 IFC, 2017 NEC and 2018 IRC)3. ALL PANELS, SWITCHES, ETC. SHALL HAVE SUFFICIENT GUTTER SPACE AND LUGS IN COMPLIANCE TO UL REQUIREMENTS TO ACCOMMODATE CONDUCTORS SHOWN.4. WHERE WIRE SIZES ARE INDICATED ON PLANS, FOR INDIVIDUAL CIRCUITS, THE WIRE SIZE INDICATED SHALL APPLY TO THE COMPLETE CIRCUIT, UNLESS OTHERWISE NOTED.5. CONTRACTOR SHALL EXTEND WIRING FROM ALL JUNCTION BOXES, SWITCHES, ETC. AND MAKE FINAL CONNECTION AS REQUIRED TO ALL BUILDING EQUIPMENT REQUIRING ELECTRICALCONNECTIONS.6. DRAWINGS ARE DIAGRAMMATIC AND INDICATE GENERAL ARRANGEMENT OF SYSTEMS AND WORK INCLUDED. FOLLOW DRAWING IN LAYING OUT WORK AND CHECK DRAWINGS OR OTHERTRADES RELATING TO WORK TO VERIFY SPACE IN WHICH WORK WILL BE INSTALLED. MAINTAIN HEADROOM AND MINIMUM CODE REQUIRED WORKING CLEARANCES AT ALL TIMES.7. ALL EXTERIOR ELECTRICAL DEVICES AND EQUIPMENT INCLUDING THOSE THAT ARE EXPOSED TO OUTSIDE ENVIRONMENT SHALL BE WEATHERPROOF TYPE, NEMA 3R.8. DISCONNECT SWITCHES SHALL BE MOUNTED ON INDIVIDUAL SUPPORTS, OR OTHERWISE DIRECTLY ON EQUIPMENT, PROVIDED.9. NO MODIFICATION TO EQUIPMENT IS NECESSARY. ALL ELECTRIC MATERIAL SHALL BE LISTED BY "UL" FOR THE TYPE OF APPLICATION AND "UL" LABEL SHALL APPEAR ON ALL ELECTRICALEQUIPMENT.10. WIRING METHOD SHALL BE EMT ABOVE GROUND AND MOUNTED IN CONCEALED SPACES (UNLESS APPROVED OTHERWISE) AND SCHEDULE - 40 PVC FOR BELOW GROUND INSTALLATIONUNLESS NOTED OTHERWISE.PHONE NUM.: (479) 276-2999 6/12/2023 3'3'3'3'32'-7"23'-6"18'-3"33'-3"JILL DR NSCALE: 1/16" = 1'-0"PV SYSTEM SITE LAYOUTPV-0 SITE LAYOUT DRAWN BY: ICSHEETNAME:SHEETNUMBER:249 JILL DR REXBURG, ID 83440Last Modified: 6/9/2023 WISE RESIDENCEREVISIONS:PV INTERCONNECTION POINT. LOCATION OF MAIN SERVICEPANEL, AC DISCONNECT AND PV LOAD CENTER, MOUNTED ONEXTERIOR WALL SINGLE FAMILY RESIDENCEDISCONNECT WITHIN 10' OF METERLEGENDSOLAR DISCONNECTMMETERPV LOAD CENTER(24) VSUN VSUN405-108BMHMODULES WITH A/AN AP SYSTEMDS3-S MICROINVERTERS ATTACHEDTO THE BACK OF MODULESMOUNTED ON COMP SHINGLE ROOFWIRING MUST BE PERMANENTLY ANDCOMPLETELY HELD OFF OF THE ROOFSURFACEPER NEC 110.2, 110.3(A), 110.3(B) & 300.4PV SYSTEM SIZE:9.72 kW DC249 JILL DR, REXBURG, ID 83440PROPERTY LINEDRIVEWAYSAFETY OFFSETFOR ROOF ACCESSPHONE NUM.: (479) 276-2999DLCMDLC SAFETY OFFSETFOR ROOF ACCESS6/12/2023 3'3'3'3'NSCALE: 1/8" = 1'-0"PV SYSTEM SITE PLANPV-1 SITE PLAN DRAWN BY: ICSHEETNAME:SHEETNUMBER:249 JILL DR REXBURG, ID 83440Last Modified: 6/9/2023 WISE RESIDENCEREVISIONS:PV SYSTEM SIZE:9.72 kW DC249 JILL DR, REXBURG, ID 83440Roof Azimuth: 90Roof Tilt: 30Module Count: 24Roof Section 1LEGENDMETERMJUNCTION BOXATTACHED TO ARRAYWIRING MUST BE PERMANENTLY ANDCOMPLETELY HELD OFF OF THE ROOF SURFACEPER NEC 110.2, 110.3(A), 110.3(B) & 300.4PLUMBING VENT(S)LCPV LOAD CENTERDISCONNECT WITHIN10' OF METERPHONE NUM.: (479) 276-2999DSOLAR DISCONNECTPV INTERCONNECTION POINT.LOCATION OF MAIN SERVICEPANEL AND AC DISCONNECT, MOUNTED ON EXTERIORWALL SINGLE FAMILY RESIDENCE(24) VSUN VSUN405-108BMH MODULES WITH A/AN APSYSTEM DS3-S MICROINVERTERS ATTACHED TO THE BACKOF MODULES MOUNTED ON COMP SHINGLE ROOFMDROOF VENT(S)LCSAFETY OFFSETFOR ROOF ACCESSSAFETY OFFSETFOR ROOF ACCESS6/12/2023 3'3'3'3'NSCALE: 1/8" = 1'-0"PV SYSTEM MOUNTING DETAILSPV-2 ATTACHMENT DETAILS DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 REVISIONS: 249 JILL DR REXBURG, ID 83440 WISE RESIDENCEPV MOUNTS@ 48" O.C. MAXOBSTRUCTION(S)PV SOLAR MODULESEXISTING ROOFTRUSSES @ 24" O.C.ALUMINUM RAILSRoof Azimuth: 90Roof Tilt: 30Module Count: 24Roof Section 1PHONE NUM.: (479) 276-2999 6/12/2023 PV-3 STRUCTURAL PICTURES DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 REVISIONS: 249 JILL DR REXBURG, ID 83440 WISE RESIDENCE PHONE NUM.: (479) 276-2999 PV CIRCUIT 2: 12 MODULES/PARALLEL[ (6) AP SYSTEM DS3-S 2 IN 1]12112120ANJUNCTION BOXWITH IRREVERSIBLEGROUND SPLICE(N) 100A PV LOADCENTERGROUND LEVEL -HOUSE EXTERIORROOFTOP1E 1.02E 1.020APV CIRCUIT 1: 12 MODULES/PARALLEL[ (6) AP SYSTEM DS3-S 2 IN 1]1211211E 1.0Conduit and Conductor ScheduleTagDescriptionWire Gauge# of ConductorsConduit TypeConduit Size1DS3 engage cable - THWN10 AWG4N/A - Free AirN/A - Free Air1Bare Copper Ground (EGC/GEC)6 AWG2N/A - Free AirN/A - Free Air2THWN10 AWG4EMT3/4"2THWN-2 - Ground10 AWG1EMT3/4"3THWN-28 AWG3EMT3/4"3THWN-2 - Ground10 AWG1EMT3/4"VISIBLE/LOCKABLE'KNIFE'60A/240V A/CDISCONNECT3E 1.0POINT OF DELIVERYAND INTERCONNECTION40AEXISTINGGECMEXISTING200A INTERIORLOAD CENTER200A3E 1.0AP SYSTEM DS3-S MICROINVERTERSAT EACH MODULEVSUN VSUN405-108BMHSOLAR MODULE#6 BARE CU GROUND(GROUNDING MODULE& INVERTER ON LAST MODULEIN CIRCUIT)MODULE DETAILE-1 3-LINE DIAGRAM DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 REVISIONS: 249 JILL DR REXBURG, ID 83440 WISE RESIDENCE Notes:1.This system meets the requirements of NEC 690.35 and is exempt fromthe system grounding requirements of NEC 690.41 System Grounding.2.The DC conductors are not bonded to ground and the optimizers do notrequire a GEC.3.NEC 690.43(C) Structure as Equipment Grounding Conductor allows forequipment to be used as the EGC in a photovoltaic system.4.The devices listed and identified for grounding the equipment may bestand-alone grounding components or UL-2703 listed mounting hardware.Optimizers and modules are bonded to the racking with listed andappoved grounding components.5.Equipment operating 150 volts or greater shall only be serviced or replacedby qualified personnel. Field protection may be in the form of conduit,closed cabinet or an enclosure which require use of tools to open.6.Solar Photovoltaic System equipment will be installed in accordance withthe requirements of Art. 690 of the 2017 NEC.7.Local utility provider shall be notified prior to use and activation of any solarphotovoltaic installation.8.No sheet metal or tech screws shall be used to ground disconnectenclosure with tin-plated aluminum lugs; proper grounding/bar kits must beused.9.All solar modules, equipment, and metallic components are to be groundedin accordance with code and the manufacturer's installation instructions.10.PV modules Cannot be installed over or block any attic vents, plumbingvents, furnace or water heater vents etc.11.Wiring must be permanently and completely held off of the roof surface perNEC 110.2, 110.3(A), 110.3(B) & 300.412.Conductors with higher temperature ratings if the equipment is listed andidentified for use with such conductors per NEC 110.14 (C)(1)(3)EQUIPMENT SIZING CALCULATIONS1.12 (NO. OF INVERTERS)*2.66A(MAX AC CURRENT) = 31.9A (USE 40A BREAKER)(SOLAR BREAKER IN MAIN PANEL)PV MODULE SPECIFICATIONSMANUFACTURERMODELPmaxImpVmp1000V(DC)/1500V(DC)Vdc20OCPDINVERTER SPECIFICATIONSMANUFACTURERMAX DC INPUT VOLTAGEMAX NOMINAL VOLTAGEAP SYSTEM DS3-S60V240V2.66AMAX AC CURRENTPANEL WATTAGE405MAX OCPD RATING20ADESIGN INFOCUSTOMER NAMESYSTEM SIZEMCKAY WISE9.720 kW DC / 7.680 kW ACPHONE NUM.: (479) 276-2999 PEAK OUTPUT POWER640WVSUN24 VSUN405-108BMH40512.9231.3606/12/2023ELECTRICAL ONLYThe scope of professional engineer review is exclusivefor electrical impact on the existing roof by solar panelsinstallation. Installer must coordinate metering withelectric utility and all electrical installation requirementswith local AHJ. Mounting hardware is provided bymanufacturer and is not in scope of this review.Structural engineering is out of scope of this review. E-2 METER PICTURES DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 REVISIONS: 249 JILL DR REXBURG, ID 83440 WISE RESIDENCE PHONE NUM.: (479) 276-2999 06/12/2023 E-3 LABELS DIAGRAM DRAWN BY: ICSHEETNAME:SHEETNUMBER:Last Modified: 6/9/2023 WISE RESIDENCEREVISIONS: 249 JILL DR REXBURG, ID 83440 ACDISCONNECT57 MAIN SERVICEPANEL5678LABEL 4 IS REFLECTIVE WEATHER RESISTANT STICKER/PLAQUETO BE PLACED ON ALL INTERIOR AND EXTERIOR CONDUIT,RACEWAYS, ENCLOSURES, AND CABLE ASSEMBLIES EVERY 10'.WITHIN 1' OF TURNS OR BENDS. AND 1' ABOVE AND BELOWALL PENETRATIONS ON DC CONDUITREQUIRED SIGNAGE:2017 NEC CODES, ARTICLE 690LABEL-2:LABEL-4:LABEL-5:LABEL-7:LABEL-6:LABEL-8:3LABEL 8 INSTALLED NEXT TO THE SOLAR BREAKERINSIDE THE MAIN BREAKER PANELLABEL-3:LABEL 3 INSTALLED NEXT TO THE SOLAR BREAKERINSIDE THE MAIN BREAKER PANELLABEL 2 IS REFLECTIVE WEATHER RESISTANTSTICKER TO BE PLACED ON THE INVERTER ABOVETHE SHUTDOWN SWITCH24031.92PHONE NUM.: (479) 276-2999 PV LOAD CENTER345706/12/2023 2022/10/27 Rev1.6 PRODUCT FEATURES WIRING SCHEMATIC DS3 Series The most powerful Dual Microinverter • One microinverter connects to two solar modules • Max output power reaching 640VA, 768VA or 880VA • Two independent input channels (MPPT) • CA Rule 21 (UL 1741 SA) compliant • NEC 2020 690.12 Rapid Shutdown Compliant • Encrypted Wireless ZigBee Communication • Phase Monitored and Phase Balanced APsystems’ 3rd generation of dual-module microinverters, the DS3 product family represents the culmination of years of power conversion expertise and innovation in high-efficiency, high-density power conversion to maximize the peak performance of today’s high-capacity PV modules. The DS3 series reaches unprecedented levels of power output and is fully backwards compatible with QS1 and YC600 microinverters and accessories. It features 2 input channels, each with independent MPPT, and encrypted wireless ZigBee communication. An innovative and compact design makes the product lighter while maximizing power production, and silicone-encapsulated components reduce stress on electronics, facilitate thermal dissipation, and enhance weatherproofing. Reliability is significantly increased thanks to 20% fewer components than previous generations. A 24/7 energy access through apps or web based portal facilitate remote diagnosis and maintenance. The DS3 series is grid-interactive and fully compliant with CA Rule 21 requirements. With its unparalleled performance, efficiency of 97.3%, and increased reliability, the APsystems DS3 series is a gamechanger for residential and commercial solar. Leading the Industry in Solar Microinverter Technology Region Model USA / Canada Datasheet | DS3 Microinverter Series Mechanical Data Operating Ambient Temperature Range(4)-40°F to +149°F (-40°C to +65°C) Storage Temperature Range -40°F to +185°F (-40°C to+85°C) Dimensions (W x H x D) 10.3” × 8.6” × 1.6” (263mm x 218mm x 41.2mm) 10.3” × 8.6” × 1.7” (263mm x 218mm x 42.5mm) Weight 5.7lbs(2.7kg)6.8lbs(3.1kg) DC Connector Type Stäubli MC4 PV-ADBP4-S2&ADSP4-S2 Cooling Natural Convection - No Fans Enclosure Environmental Rating Type 6 Efficiency Peak Efficiency 97.3% CEC Efficiency 97% Nominal MPPT Efficiency 99.5% Night Power Consumption 20mW Features Communication (Inverter To ECU) (5)Encrypted ZigBee Isolation Design High Frequency Transformers, Galvanically Isolated Energy Management Energy Management Analysis (EMA) system Warranty(6)10 Years Standard ; 25 Years Optional Compliance Safety and EMC Compliance UL1741; CSA C22.2 No. 107.1-16;CA Rule 21 (UL 1741 SA); FCC Part15; ICES-003; IEEE1547; NEC2014&NEC2017&NEC2020 Section 690.11 DC Arc-Fault circuit Protection; NEC2014&NEC2017&NEC2020 Section 690.12 Rapid Shutdown of PV systems on Buildings APsystems 8701 N. Mopac Expy, Ste 160, Austin, TX 78759 apsystems.com © All Rights Reserved Specifications subject to change without notice please ensure you are using the most recent update found at web : usa.APsystems.com Meets the standard requirements for Distributed Energy Resources (UL 1741) and identified with the CSA Listed Mark Input Data (DC) Recommended PV Module Power (STC) Range 250Wp-480Wp+265Wp-570Wp+300Wp-660Wp+ Peak Power Tracking Voltage(1)28V-45V Operating Voltage Range 26V-60V Maximum Input Voltage 60V Maximum Input Current 16A x 2 18A x 2 20A x 2 Maximum input short circuit current 20A per input 22.5A per input 25A per input Output Data (AC) Maximum Continuous Output Power 640VA 768VA 880VA Nominal Output Voltage/Range(2)240V / 211V-264V Nominal Output Current 2.66A 3.2A 3.7A Maximum Output Fault Current (ac) And Duration 5.691Apk, 26.75ms of duration; 3.307Arms Nominal Output Frequency/ Range(2)60Hz/59.3Hz-60.5Hz Power Factor (Default/Adjustable)0.99/0.8 leading…0.8 lagging Maximum Units per 20A Branch(3)6 5 4 Maximum Units per 30A Branch(3)9 7 6 AC Bus Cable 12AWG / 10AWG DS3-LDS3-S DS3 (1) VMP values may be different on previous DS3 models with a 34 -45V range for microinverters not connected to an ECU and 30-45V range for devices upgraded with an ECU. (2) Nominal voltage/frequency range can be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. (4) The inverter may enter to power de-grade mode under poor ventilation and heat dissipation installation environment. (5) Recommend no more than 80 inverters register to one ECU for stable communication. (6) To be eligible for the warranty, APsystems microinverters need to be monitored via the EMA portal. Please refer to our warranty T&Cs available on emea.APsystems.com. NXT HORIZON® RAIL SPLICE RLSPLCM1 Structural internal splice that does not interfere with roof connection nor module connection. Pre-assembled thread cutting bolts.FLASHKIT PRO DARK: 004055DMILL: 004055M SOLARHOOKS All varieties FLASHLOC™ DUO DARK: 004275DMILL: 004275M The culmination of over two decades of experience. Thoughtful design, rigorous engineering, world-class support, and a reliable supply chain are the foundation of what makes us confident that NXT HORIZON® is the NXT Level of DESIGN, SIMPLICITY, and VALUE. NXT HORIZON® COMBO CLAMP DARK: CCLAMPD1MILL: CCLAMPM1 Clicks into rail anywhere (even where there are cables!) Self-standing clamp with spring combines as both mid and end clamp. Clamps 30-40 mm modules NXT HORIZON® RAIL DARK: 168RLD1MILL: 168RLM1 Strong, lightweight open channel rail with invisible, easy, unfailing and integrated wire management system. NXT HORIZON® NORTH/SOUTH WIRE MANAGEMENT CLIP WRMCNSD1 An elegant solution to help installers get to the home run. The same hardware works to provide both easy entry to rail and adjustability for cable thickness. NXT HORIZON® WIRE MANAGEMENT CLIP WRMCLPD1 Aesthetic, yet functional accessory that works to help installers keep wires inside the rail. No zip-ties required. Optional zip tie loop for extra wire management capabilities! NXT HORIZON® CAP KIT ENDCAPD1 Make the install look clean with the end cap kit designed to complement the module end clamp and rail ends. STRONGHOLD™ ATTACHMENT KIT DARK: SHCPKTD1MILL: SHCPKTM1 Rail clicks into the clamps attached to the Stronghold™ base. Open slot in L-foot allows drop-in rail clamp. Alternative attachment options: FlashLoc technology combined with new features: click-in rail & open slot L-Foot for the best flash-less install experience. 1/2 inch module spacing for efficiency. Unirac-quality bonding that works both as mid and end clamps. STRONGHOLD™ RAIL CLAMP DARK: SHCLMPD1MILL: SHCLMPM1 Adaptable rail connection to attachments allows click-in feature compatibility with almost all of Unirac’s attachments. NXT HORIZON® MLPE & LUG CLAMP LUGMLPE1 Works as either MLPE Mount or Grounding Lug connection to the rail. Why source two parts when one can do the job? WIRE MANAGEMENT OPTONS ALL NXT HORIZON® SYSTEMS INCLUDE A FREE PERMITTING PLANSET DESIGN - FOR QUESTIONS OR CUSTOMER SERVICE VISIT UNIRAC.COM OR EMAIL NXTPERMITS@UNIRAC.COM DISCOVER YOUR NXT HORIZON® ® DISCOVER YOUR LEARN HOW TO SAVE UP TO 3 CENTS PER WATT. ALL NXT HORIZON® SYSTEMS INCLUDE A FREE PERMITTING PLANSET DESIGN - FOR QUESTIONS OR CUSTOMER SERVICE VISIT UNIRAC.COM OR EMAIL NXTPERMITS@UNIRAC.COM ® INSTALLATION GUIDE PUB2022APR18 TABLE OF CONTENTS A - NH SYSTEM COMPONENTS B - SYSTEM LAYOUT C - THERMAL BREAK D - ROOF PREPARATION E - STRONG HOLD ATTACHMENT INSTALL F - FLASHKIT PRO INSTALL G - ATTACHMENT ORIENTATIONS H - RAIL INSTALL I - STRUCTURAL SPLICE J - SYSTEM GEOUNDING K - MLPE MOUNTING L - WIRE MANAGEMENT M - COMBO CLIP INSTALL N - FINISHING TOUCHES APPENDIX - 1: BONDING CONNECTION GROUND PATHS APPENDIX - 2: BONDING CONNECTION GROUND PATHS APPENDIX - 3: SYSTEM CERTIFICATION APPENDIX - 4: SYSTEM CERTIFICATION APPENDIX - 5: SYSTEM CERTIFICATION APPENDIX - 6: SYSTEM CERTIFICATION INSTALLATION GUIDE PAGE IMAGE-1-SYSTEM COMPONENTS VIEW 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D Anti-Seize Wrench or Socket Size Recommended Torque (ft-lbs) Combo Mid-End Clamp 1/2”15 MLPE and Lug Clamp 1/2”12 Stronghold Rail Clamp 1/2”15 Rail Splice 1/2”15 NS Wire Management Clip 1/2”3-7 NXT SYSTEM COMPONENTS A RAIL: Supports PV modules with built-in wire management. Use at least two rails per row of modules. Aluminum extrusion, available in mill, or dark anodized. RAIL SPLICE: Internal Structural Splice joins, aligns, and electrically bonds rail sections into single length of rail. 10 inches long aluminum splice, preassembled with stainless-steel hardware. STRONGHOLD ATTACHMENT KIT: Use to secure rails through roofing material to building structure. Supplied with the following: FLASHKIT PRO: Use with Stronghold Rail Clamp to secure rail through roofing material to building structure. Aluminum L-foot with EPDM gromet, aluminum flashing, and stainless-steel lag bolt COMBO CLAMP: Use as a mid clamp or an end clamp to secure and electrically bond modules to rails. Aluminum clamp with stainless-steel bonding pins, stainless-steel hex bolt, and plastic spring clip. Available in clear or dark finish. MLPE AND LUG CLAMP: Use to secure MLPE devices or ground wires to rails. Pre-assembled clamp with stainless-steel bolt, stainless-steel grounding plate, and plastic retention clip. N/S WIRE MANAGEMENT CLIP: Pre-assembled clamp to secure wires between rails. WIRE MANAGEMENT CLIP: Toolless snap-in rail clip used to retain wires in rail or to secure wires between rails when used with a wire tie. STRONGHOLD RAIL CLAMP: Use to secure rails to L-feet. Pre-assembled Aluminum clamp with stainless-steel bolt. • STRONGHOLD ATTACHMENT BASE: Pre-assembled aluminum L-Foot with engineered roof seal. • 4” STAINLESS-STEEL LAG BOLT with sealing EPDM washer. • UNIRAC PROVIDED SEALANT (if applicable) Wrenches and Torque Stainless steel hardware can seize up, a process called galling. To significantly reduce its likelihood: 1. Apply minimal lubricant to bolts only where indicated in installation process, preferably Anti-Seize commonly found at auto parts stores (Anti-seize has been factory applied to mid clamp bolts) 2. Shade hardware prior to installation, and 3. Avoid spinning stainless nuts onto bolts at high speed. INSTALLATION GUIDE PAGE PLANNING YOUR NXT HORIZON INSTALLATIONS The installation can be laid out with rails parallel to the rafters or perpendicular to the rafters. Note that NXT HORIZON rails make excellent straight edges for doing layouts. Center the installation area over the structural members as much as possible. Leave enough room to safely move around the array during installation. Some building codes and fire codes require minimum clearances around such installations, and the installer should check local building code requirements for compliance. The length of the installation area is equal to: • the total width of the modules, • plus 1/2” for each space between modules (for mid- clamp), • plus 2" minimum ( 1” minimum for each MODULE END) LAYING OUT ROOF ATTACHMENTS Locate and mark the position of the roof attachment within the installation area. Refer to Unirac NXT Horizon D&E Guide & U-Builder for rail spans and cantilevers. Follow module manufacturer installation requirements allowable spacing based on appropriate mounting locations. Modules should be placed such that they overhang the rails symmetrically. NXT Rail Splices are fully structural and do not interfere with roof attachments or Combo Clamps. There is no need to determine splice locations at this stage. CAUTION: RAIL LENGTHS AND LOCATIONS OF L-FEET FOR EXPANSION JOINTS WILL NEED TO BE DETERMINED AT THIS STAGE IN PLANNING THE ARRAY LAYOUT. FOR EXPANSION JOINT REQUIREMENTS, REFER TO PAGE C. SYSTEM LAYOUT Peak (Ridge) LOW PROFILE MODE HIGH PROFILE MODE GutterEave EaveB INSTALLATION GUIDE PAGE IMAGE-1-THERMAL BREAK 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D THERMAL BREAK C EXPANSION JOINT USED AS THERMAL BREAK Expansion joints prevent buckling of rails or system connection failure due to thermal expansion. Determine location of expansion joints prior to installation of roof attachments and rails. To create a thermal expansion joint, provide a sufficient gap between rails for proper installation of end clamps and tooling to achieve required torque. A thermal break is required when a continuous length of spliced rails exceeds the maximum allowable lengths shown in the table to the right. For additional concerns on thermal breaks in your specific project, please consult a licensed structural engineer. Rails in expansion joint configurations are considered cantilevered and must follow the cantilever rule on both sides of the expansion joint, which states that the maximum amount of rail that can be cantilevered is 1/3 the respective adjacent span. An expansion joint must not be spanned by a PV module. Installing a module over an expansion joint would defeat the goal of a thermal break and could result in damage to the array. Bonding connection for splice used as a thermal break. Option shown uses two Ilsco lugs (Model No. GBL-4DBT P/N GBL-4DBT - see product data sheet for more details) and solid copper wire. Optional grounding may be achieved through NXT Horizon MLPE & Lug Clamp. See Page J.The values displayed are the maximum allowed rail length, in feet, without a thermal break. If your span is less than 48”, refer to the NXT Horizon Design & Engineering Guide for max lengths of continuous rail before a thermal break is required. Determine the maximum rail temperature difference (ΔT) between the time of installation and the extreme high or low temperature. The Extreme Annual Design Conditions table at the following url can be used as a reference when determining ΔT. http://ashrae-meteo.info/. The installer is responsible for determining the maximum temperature difference (ΔT) used to establish the maximum rail length. As spans increase, so does the maximum reaction force that the rail exerts on the L-foot. Ensuring that the Maximum Reaction Forces do not exceed the shear capacity of the roof connection. See NXT Horizon Design & Engineering Guide for corresponding reaction forces. INSTALLATION GUIDE PAGE ROOF PREPARATION D MARK ARRAY LOCATION: Mark array location and determine roof attachment locations based on array layout. Snap chalk lines to mark each row of roof attachment points. On shingle roofs, snap lines 1-3/4” below upslope edge of shingle course. Locate rafters and mark at intersection of attachment lines. Attachment spacing determined per Design and Engineering Guide or project specific Ubuilder Engineering Report . DRILL PILOT HOLES: Drill a 7/32” pilot hole at each roof attachment. Clean roof surface of dirt, debris, snow, and ice. Fill each pilot hole with sealant. CAUTION: IN CASE OF MISSING A RAFTER, FILL IN THE PILOT HOLE WITH SEALANT. Pro Tip: Drill pilot holes within 1/4'" of chalkline to allow rail to slide freely in Rail Clamps. See Rail Install Page H. INSTALLATION GUIDE PAGE STRONGHOLD ATTACHMENT INSTALL E PLACE RAIL CLAMP ONTO L-FOOT: Drop the rail clamp assembly into the open slot of L-Foot. CAUTION: Do not tighten the rail clamp before putting in the rail. CAUTION: WHEN INSTALLING THE STRONGHOLD ATTACHMENT OVER VERTICAL JOINTS, FILL GAP/JOINT WITH SEALANT BETWEEN MOUNT AND UPSLOPE EDGE OF SHINGLE COURSE. CAUTION: AVOID INSTALLING STRONGHOLD ATTACHMENTS ACROSS THE OVERLAP IN SHINGLE COURSES OR ACROSS OVERLAPS IN ROOFING LARGER THAN 1/8 INCHES. INSTALL STRONGHOLD ATTACHMENT BASE: Place the Stronghold attachment base assembly over the pilot hole. Align indicator marks of mount with chalk line. Drive lag bolt until mount is held firmly in place. The EPDM washer should compress and expand slightly beyond the outside edge of the steel washer when the proper torque is applied. Note: Rail clamp can be installed in FOUR orientations. Refer to PG. G for detailed view. SEAL: Insert tip of UNIRAC provided sealant into port. Inject until sealant exits vent. Follow sealant manufacturer's instructions and cold weather application guidelines, if applicable CAUTION: USE ONLY UNIRAC APPROVED SEALANTS: Chemlink Duralink 50, Chemlink M-1, Geocel 4500, or Geocel S-4. Follow sealant manufacturer’s instructions and cold weather application guidelines. INSTALLATION GUIDE PAGE FLASHKIT PRO INSTALLATION F FIX RAIL CLAMP ONTO L-FOOT: Remove bolt from rail clamp. Place bolt through slot in L-foot and though hole in Rail Clamp. Partially thread holt into rail clamp, leaving the bolt loose to accept the rail. Note: Rail Clamp can be installed on any standard L-foot. INSTALL FLASHKIT PRO FLASHING: Add a U-shaped bead of roof sealant to the underside of the flashing with the open side of the U pointing down the roof slope. Slide the aluminum flashing underneath the row of shingles directly up slope from the pilot hole as shown. Align the indicator marks on the lower end of the flashing with the chalk lines on the roof to center the raised hole in the flashing over the pilot hole in the roof. When installed correctly, the flashing will extend under the two courses of shingles above the pilot hole. INSTALL L-FOOT: Fasten L-foot and Flashing into place by passing the included lag bolt and pre-installed stainless steel-backed EPDM washer through the L-foot EPDM grommet, and the hole in the flashing, into the pilot hole in the roof rafter. Drive the lag bolt down until the L-foot is held firmly in place. The EPDM washer should compress and expand slightly beyond the outside edge of the steel washer when the proper torque is applied. Note: FLASHKIT PRO L-FOOT can be installed in TWO orientations. Refer Page G for detailed view. INSTALLATION GUIDE PAGE IMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-UPSLOPEIMAGE-6-FLASHKIT-DOWNSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D ATTACHMENT ORIENTATIONS G STRONGHOLD ATTACHMENT AND RAIL CLAMP ORIENTATIONS: The Stronghold Attachment and Rail Clamp can be installed in any of four possible orientation, shown in images (A) through (D) above. Note: For high snow loads, use orientations (C) or (D). Refer to NXT Horizon Design and Engineering Guide for specific requirements. FLASHKIT PRO L-FOOT AND RAIL CLAMP ORIENTATIONS: Flashkit Pro L-foot and Rail Clamp can be installed in either orientation shown in image (E) and (F) above. Note: For high snow loads, use orientation (F). Re- fer to NXT Horizon Design and Engineering Guide for specific requirements. A E C F B DIMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-DOWNSLOPE IMAGE-6-FLASHKIT-UPSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-DOWNSLOPE IMAGE-6-FLASHKIT-UPSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-DOWNSLOPE IMAGE-6-FLASHKIT-UPSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-DOWNSLOPE IMAGE-6-FLASHKIT-UPSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-DOWNSLOPE-BACK IMAGE-2-DOWNSLOPE-FRONT IMAGE-3-UPSLOPE-BACK IMAGE-4-UPSLOPE-FRONT IMAGE-5-FLASHKIT-UPSLOPE IMAGE-6-FLASHKIT-DOWNSLOPE 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D DOWNSL O PE DOWNSL O PE DOWNSL O PE DOWNSL O PE DOWNSL O PE DOWNSL O PE INSTALLATION GUIDE PAGE RAIL INSTALLATION H POSITION RAIL ONTO RAIL CLAMP: With the bolt in the pre-assembled (loose) position, Insert the rail flange on one side of the clamp groove. Then click-in the other side of the rail into the clamp groove. CAUTION: DO NOT TIGHTEN THE RAIL CLAMP BEFORE PUTTING IN THE RAIL. ALIGN RAILS: Align one pair of rail ends to the edge of the installation area. The opposite pair of rail ends will overhang installation area. Do not trim them off until the installation is complete. Install the first module at the aligned end. If the rails are parallel to the rafters, the aligned end of the rails should face the lower edge of the roof. Securely tighten all hardware after alignment is complete. Mount modules to the rails as soon as possible. Large temperature changes may bow the rails within a few hours if module placement is delayed. TIGHTEN RAIL ONTO RAIL CLAMP : Adjust the rail height as needed until rail alignment is complete and tighten bolt. TORQUE VALUE: 20 ft-lbs. CAUTION: RAIL CLAMP MUST BE FLUSH TO THE L-FOOT AND POSITIONED BELOW THE FLANGE AT THE TOP OF THE L-FOOT IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-INSTALL STEP-1 IMAGE-2-INSTALL STEP-2 IMAGE-3-ISO VIEW IMAGE-4-RAIL FIX IMAGE-5-CAUTION-RAIL CLAMP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D X Edg e O f I n s t a l l a t i o n A r e a INSTALLATION GUIDE PAGE IMAGE-1-SPLICE INSTALL IMAGE-2-SPLICE GAP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D STRUCTURAL SPLICE I SPLICE INSTALLATION (IF REQUIRED PER SYSTEM DESIGN) If your installation uses NXT HORIZON Rail Splice, attach the rails together either before installing the rail or after. There can be a gap between rails, up to 3/16” at the splice connections. To install, slide the splice into the rail on each rail, centering the splice between the two rails. Tighten both bolts on each rail with an impact drill, pressing firmly until the bolt-head is flush against the splice and torqued to 15 ft-lbs. Installation is complete when the bonding hardware penetrates the opposite side of the rail, and the assembly torque is achieved. TORQUE VALUE: 15 ft-lbs. Do not use Anti-Seize. CAUTION: IF ASSEMBLING SPLICE DIRECTLY ON ROOF, TAKE CARE TO PREVENT BOLTS FROM PENETRATING ROOF COVERING. Note: 1. MAXIMUM OFF-CENTER DISTANCE OF SPLICE SHOULD NOT EXCEED ½” ON EITHER RAIL. 2. MAXIMUM GAP BETWEEN RAILS SHOULD NOT EXCEED 3/16” AT SPLICE CONNECTION 3. SPLICE CERTIFIED FOR SINGLE-USE ONLY IMAGE-1-SPLICE INSTALL IMAGE-2-SPLICE GAP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D 5" A B 5" 1/2" 3/16" MAX MAX 0 to 3/16” gap between rails INSTALLATION GUIDE PAGE IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIRE IMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D SYSTEM GROUNDING J SYSTEM GROUNDING: Rails can be bonded using an NXT Horizon MLPE & Lug Clamp, GROUND WEEBLUG #1 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 F for additional lugs required for expansion joints. ALTERNATE SYSTEM GROUNDING WITH ILSCO LAY-IN LUG - UNIRAC P/N 008009P: Alternate Grounding Lug. Drill hole in rail 7/32” in diameter, deburr hole and bolt thru one wall of rail. BOLT TORQUE VALUE: 5 ft lbs. TERMINAL TORQUE: 4-6 AWG: 35in-lbs, 8 AWG: 25 in-lbs. WARNING: ISOLATE COPPER FROM ALUMINUM CONTACT TO PREVENT CORROSION ALTERNATE ROW GROUNDING WITH NXT HORIZON ROW BONDING CLAMP: Insert clamp between module rows and tighten bolt. TORQUE VALUE: 20 ft-lbs ALTERNATE ROW GROUNDING WITH N/S BONDING CLIP: Fully seat bonding clip on each module flange to provide bond across N/S module gap. SYSTEM GROUNDING WITH MLPE & LUG CLAMP: Insert the rail nut profile in the opening by lifting the flaps of the plastic clip. Rotate the clamp 90 deg and release the flaps to get flush with rail. Ensure that the rail nut is engaged in the rail profile. Align the ground wire in the depression of the washer. Tighten bolt. TORQUE VALUE: 6-8 AWG: 12 ft lbs. CAUTION: MLPE & Lug Clamp cannot be used to simultaneously mount a MLPE and ground wire. IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIRE IMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D INSTALLATION GUIDE PAGE IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG IMAGE-8-INSERT CLAMP ON MLPE IMAGE-9-MLPE ON MODULE FRAME IMAGE-10-MLPE INSTALLED ON FRAME IMAGE-11-BOLT TIGHTEN-BLOW UP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG IMAGE-8-INSERT CLAMP ON MLPE IMAGE-9-MLPE ON MODULE FRAME IMAGE-10-MLPE INSTALLED ON FRAME IMAGE-11-BOLT TIGHTEN-BLOW UP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG IMAGE-8-INSERT CLAMP ON MLPE IMAGE-9-MLPE ON MODULE FRAME IMAGE-10-MLPE INSTALLED ON FRAME IMAGE-11-BOLT TIGHTEN-BLOW UP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG IMAGE-8-INSERT CLAMP ON MLPE IMAGE-9-MLPE ON MODULE FRAME IMAGE-10-MLPE INSTALLED ON FRAME IMAGE-11-BOLT TIGHTEN-BLOW UP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D MLPE MOUNTING K IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D INSTALL MLPE & LUG CLAMP: Insert the rail nut in the rail by pinching the flaps of the plastic clip with thumb and middle finger, while pressing bolt head down with pointer finger. Rotate the clamp 90 deg in clockwise or anticlockwise in the rail and release the flaps when aligned with rail. Ensure that the rail nut is engaged in the rail profile. INSTALL MICROINVERTER: Install microinverter onto rail. Engage with bolt. CAUTION: MLPE & Lug Clamp cannot be used to simultaneously mount MLPE devices and ground wires. TIGHTEN BOLT TO SECURE: TORQUE VALUE: 12 ft-lbs. Quick Tip: To remove the MPLE clamp from the rail, use a tool to pry-open the rail to release the clamp. CAUTION: Ensure that MLPE is always installed on the top of lock-tooth washer. ALTERNATELY INSTALL MLPE ON MODULE FRAME: Engage MLPE & mount onto module frame flange and tighten bolt. TORQUE VALUE: 20 ft-lbs Note: Refer to Unirac MLPE Mount Installation Guide for details at https://unirac.com/pdf/mlpe-mount-installation-guide/ IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D DX INSTALLATION GUIDE PAGE IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D WIRE MANAGEMENT L INSTALL NS WIRE MANAGEMENT CLIP: Insert the wire clamp assembly into the rail by placing one end of the rail nut into the rail and clip in the other end. INSTALL NS WIRE MANAGEMENT CLIP: Ensure that the rail nut profile is seated in the rail profile. Note: Wire clip can be oriented along the rail or perpendicular to secure wires between rails. INSTALL WIRE MANAGEMENT CLIP: Wire clip retains the wire in the rail channel. Press fit the clip onto the rail flanges to install. INSTALL WIRE MANAGEMENT CLIP: Ensure that the clip base is seated on the rail flange INSTALL WIRE MANAGEMENT CLIP: Use the wire tie to strap the wires down on the seater provided in the wire clip. INSTALL NS WIRE MANAGEMENT CLIP: Insert the wires into the groove of wire clamp and tighten it down to the suggested torque value. TORQUE VALUE: 3-7 ft-lbs. IMAGE-1- WIRE MGMT CLIP INSTALL STEP-1 IMAGE-2-WIRE MGMT CLIP INSTALL STEP-2 IMAGE-3-WIRE MGMT CLIP STEP-3 IMAGE-4-WIRE CLIP INSTALL-STEP-1 IMAGE-5-WIRE CLIP INSTALL-STEP-2 IMAGE-6-WIRE TIE INSERT IMAGE-7-WIRE TIE STRAPPED 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D INSTALLATION GUIDE PAGE COMBO CLAMP INSTALLATION M INSTALL COMBO (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. 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 REMAINING MODULES: Proceed with module installation. Engage each clamp with previously positioned module. INSTALL COMBO (END) CLAMPS: Install Combo Clamps starting at the aligned end of rails. 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 rail nut profile is seated in the rail profile. 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. IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-CAUTION WHILE FLUSH CUTTING THE RAIL IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-CAUTION WHILE FLUSH CUTTING THE RAIL IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-CAUTION WHILE FLUSH CUTTING THE RAIL IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-INSTALL END MODULE IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-INSTALL END MODULEIMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-CAUTION WHILE FLUSH CUTTING THE RAIL IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-INSTALL END MODULE IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-INSTALL END MODULE IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D 1/2" 1" min INSTALLATION GUIDE PAGE FINISHING TOUCHES N OPTIONAL END CAP: End caps install as supplied in NH. Place the cap on the edge of the rail and press fit the cap onto the rail. INSTALL UL2703 CERTIFICATION MARKING LABEL: After the racking system is fully assembled, a single label should be applied to the rail at the edge of the array. One certification label is supplied in every box of 20 clamps. Note: The sticker label should be placed such that it is visible OPTIONAL COMBO CLAMP CAP: End caps install as supplied in NH. Place the cap on the edge of the clamp cap and press fit the cap onto the clamp. IMAGE-1-RAIL END CAP IMAGE-2-COMBO CLAMP CAP IMAGE-2A-END CAP AND COMBO CAP IMAGE-3-NS BONDING-ISO VIEW IMAGE-4-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-6-NS ALTERNATE BONDING METHOD 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-RAIL END CAP IMAGE-2X-COMBO CLAMP CAP IMAGE-2-END CAP AND COMBO CAP IMAGE-3-STICKER VIEW 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-RAIL END CAP IMAGE-2X-COMBO CLAMP CAP IMAGE-2-END CAP AND COMBO CAP IMAGE-3-STICKER VIEW 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D PAGE IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-ISO VIEW IMAGE-8-ILSCO LUG WITH GROUND WIREIMAGE-7-ILSCO LUG INSTALL IMAGE-3-LUG INSTALL STEP-1 IMAGE-4-LUG INSTALL STEP-2 IMAGE-5-LUG INSTALL STEP-3 IMAGE-6-LUG INSTALL STEP-4 IMAGE-9-NS BONDING-ISO VIEW IMAGE-10-NS BONDING SIDE VIEW IMAGE-5-CLAMP BLOWUP IMAGE-11-NS ALTERNATE BONDING METHOD IMAGE-2-RACK SYSTEM GROUND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-THERMAL BREAK 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-1-SPLICE INSTALL IMAGE-2-SPLICE GAP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-CAUTION WHILE FLUSH CUTTING THE RAIL IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D APPENDIX 1 BONDING RAIL SPLICE BONDING MICROINVERTER MOUNT RACK SYSTEM GROUND ALTERNATE ROW-TO-ROW BONDING PATHS BONDING BETWEEN THERMAL BREAKS BONDING COMBO MID-END CLAMP ASSEMBLY 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 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 M for installation details 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 I for installation details Splice certified for single-use only 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 D for installation details Stainless steel Tooth lock washer beneath the MLPE flange remove anodization on the mlpe and bonds. Tabs on the stainless-steel washer remove anodization on the rail and bonds. NOTE: See page K for installation details Tabs on the stainless-steel washer pierce anodization on the rail to bond rail to ground wire. Solid copper wire connected to lug is routed to provide final system ground connection. NOTE: See page J for installation details and alternate racking system grounding methods. Row-to-row module bonding is accomplished with bonding clamp with 2 integral bonding pins. Alternate method by connecting clips on either module to complete the bonding path. NOTE: See page J for installation details Row-to-row module bonding certified for single-use only 3 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 IMAGE-5-BONDING MICROINVERTER MOUNT IMAGE-6-RACK SYSTEM GROUND IMAGE-2-BONDING COMBO MID-END CLAMP ASSEMBLY IMAGE-1-NXT RAIL 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D IMAGE-6-ISO VIEW IMAGE-2-COMBO CLAMP INSTALL STEP-1 IMAGE-3-COMBO CLAMP INSTALL STEP-2 IMAGE-7-CLAMP TORQUE VIEW IMAGE-8-REMAINING CLAMP INSTALL IMAGE-4-INSTALL END MODULE IMAGE-5-COMBO CLAMP-END VERSION IMAGE-1-INSTALL COMBO (END) CLAMPS 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D MO D U L E FR A M E MODULE FRAME BONDING GROUND PLATE NXT RAIL MICRO-INVERTERFLANGENXTRAILRail C a p - W/ B o n d i n g har d w a r e Rail N u t - W/ B o n d i n g har d w a r e IMAGE-4-MLPE INSTALL STEP-4 IMAGE-5-MLPE INSTALL STEP-5 IMAGE-1-MLPE INSTALL STEP-1 IMAGE-2-MLPE INSTALL STEP-2 IMAGE-3-MLPE INSTALL STEP-3 IMAGE-6-MLPE INSTALL-RIGHT IMAGE-7-MLPE INSTALL-WRONG 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D SOL I D COP P E R WIR E NXT RAIL 1 BONDING CONNECTION GROUND PATHS PAGE IMAGE-1-BONDING ASSEMBLY 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D APPENDIX 2 BONDING MICROINVERTER MOUNTS RACKING SYSTEM GROUND Note: Only one lug per module row required Ground Lug w/ Bare Copper Wire ALTERNATE ROW-TO-ROW BONDING METHOD BONDING COMBO CLAMPS BONDING RAIL SPLICE BONDING CONNECTION GROUND PATHS PAGE APPENDIX Module Type System Level Fire Rating Rail Direction Module Orientation Type 1, 2, 3 w metal frame, 10 w metal frame, 19, 22, 25, 29, & 30 Class A, Class B & Class C Parallel OR Perpendicular to Ridge Landscape OR Portrait Tested Module UL2703 Certification Load Ratings Tested Loads Tested Module Area SunPower SPR-A440 -COM Down: 113 psf, Up: 50 psf , Slope: 15 psf Down: 170 psf, Up: 75 psf , Slope: 23 psf 21.86 sq ft 3 The NXT Horizon 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 HORIZON Installation Guide. NXT HORIZON has been classified to the system level fire portion of UL 2703. NXT HORIZON has achieved system level performance for steep sloped roofs. System level fire performance is inherent in the NXT HORIZON 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 9.5 degrees). 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 HORIZON. Approved Module Types & System Level Fire Ratings are listed below: 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 Horizon rating. Please consult the PV module manufacturer's installation guide for more information. UL2703 CERTIFICATION MARKING LABEL: Unirac NXT HORIZON is listed to UL 2703. Certification marking is embossed on all Combo Clamps as shown. Labels with additional certification information are provided with clamps and must be applied to the NXT Horizon Rail at the edge of the array. Note: This racking system may be used to ground and/or mount a PV module complying with UL1703/UL61730 only when the specific module has been evaluated for grounding and/or mounting in compliance with the included instructions. SYSTEM CERTIFICATION PAGE APPENDIX 4SYSTEM CERTIFICATION Electrical Bonding and Grounding Test Modules The list below is not exhaustive of compliant modules but shows those that have been evaluated and found to be electrically compatible with the NXT Horizon system. • The frame profile must not have any feature that might interfere with the bonding devices that are integrated into the racking system • Use with a maximum over current protection device OCPD of 30A • Listed models can be used to achieve a Class A fire system rating, for steep slope applications, only when modules fire typed 1, 2, 3 w metal frame, 10 w metal frame, 19, 22, 25, 29, or 30. See Appendix page 3 Aionrise AION60G1, AION72G1 Aleo P-Series & S-Series Aptos Solar DNA-120-MF10 DNA-120-(MF/BF)23 DNA-144-(MF/BF)23 DNA-120-(MF/BF)26 DNA-144-(MF/BF)26 Astronergy CHSM6612 M, M/HV CHSM6612P Series CHSM6612P/HV Series CHSM72M-HC CHSM72M(DG)/F-BH Auxin AXN6M610T AXN6P610T AXN6M612T AXN6P612T Axitec AC-xxx(M/P)/60S, AC-xxx(M/P)/72S AC-xxxP/156-60S AC-xxxMH/120(S/V/SB/VB) AC-xxxMH/144(S/V/SB/VB) Boviet BVM6610, BVM6612 BYD P6K & MHK-36 Series Canadian Solar CS1(H/K/U/Y)-MS CS3K-(MB/MB-AG/MS/P/P HE/PB-AG) CS3L-(MS/P) CS3N-MS CS3U-(MB/MB-AG/MS/P/P HE/PB/PB-AG) CS3W-(MS/P/P-PB-AG) CS5A-M CS6K-(M/MS/MS AllBlack/P/P HE) Canadian Solar (cont.) CS6P-(M/P) CS6U-(M/P/P HE) CS6X-P, CSX-P ELPS CS6(A/P)-MM Centrosolar America C-Series & E-Series CertainTeed CT2xxMxx-01, CT2xxPxx-01, CTxxxMxx-01 CTxxxPxx-01, CTxxxMxx-02, CTxxxMxx-03 CTxxxMxx-04, CTxxxHC11-04 Eco Solargy Orion 1000 & Apollo 1000 ET Solar ET AC Module, ET Module First Solar FS-6XXX(A) FS-6XXX(A)-P, FS-6XXX(A)-P-I Flextronics FXS-xxxBB FreeVolt PVGraf GCL GCL-P6 & GCL-M6 Series Hanwha SolarOne HSL 60 Hansol TD-AN3, TD-AN4 UB-AN1, UD-AN1 Heliene 36M, 36P 60M, 60P, 72M & 72P Series 144HC M6 HT Solar HT72-156(M/P) HT72-156P-C, HT72-156P(V)-C HT72-156M(PDV)-BF, HT72-156M(PD)-BF HT60-156M-C HT60-156M(V)-C Hyundai KG, MG, RW, TG, RI, RG, TI, KI, HI Series HiA-SxxxHG, HiD-SxxxRG(BK), HiS-S400PI ITEK iT-SE Series Japan Solar JPS-60 & JPS-72 Series JA Solar JAM72D30MB, JAM78D10MB JAP6 60-xxx JAM6(K)-60/xxx, JAP6(k)-72-xxx/4BB JAP72S##-xxx/** JAP6(k)-60-xxx/4BB, JAP60S##-xxx/** JAM6(k)-72-xxx/**, JAM72S##-xxx/** JAM6(k)-60-xxx/**, JAM60S##-xxx/** i. ##: 01, 02, 03, 09, 10 ii. **: SC, PR, BP, HiT, IB, MW, MR ** = Backsheet, ## Cell technology Jinko JKM & JKMS Series JKMxxxM-72HL-V JKMxxxM-72HL4-(T)V JKMxxxM-7RL3-V Kyocera KD-F & KU Series LA Solar LSxxxHC(166) LG Electronics LGxxx(E1C/E1K/N1C/N1K/N2T/N2W/S1C/ S2W/Q1C/Q1K)-A5 LGxxx(A1C/M1C/M1K/N1C/N1K/Q1C/Q1K/ QAC/QAK)-A6 LGxxxN2W-B3 LGxxxN2T-B5 LGxxxN1K-B6 LGxxx(N1C/N1K/N2T/N2W)-E6 LGxxx(N1C/N1K/N2W/S1C/S2W)-G4 LGxxxN2T-J5 LGxxx(N1K/N1W/N2T/N2W)-L5 LGxxx(M1C/N1C/Q1C/Q1K)-N5 LGxxx(N1C/N1K/N2W/Q1C/Q1K)-V5 LGxxxN3K-V6 Manufacture Module Model / Series Manufacture Module Model / Series Manufacture Module Model / Series PAGE APPENDIX 5SYSTEM CERTIFICATION Electrical Bonding and Grounding Test Modules The list below is not exhaustive of compliant modules but shows those that have been evaluated and found to be electrically compatible with the NXT Horizon system. Manufacture Module Model / Series Manufacture Module Model / Series LONGi LR4-60(HPB/HPH) LR4-72(HPH) LR6-60 LR6-60(BK/HPB/HPH/HV/PB/PE/PH) LR6-72 LR6-72(BK/HV/PB/PE/PH) RealBlack LR4-60HPB RealBlack LR6-60HPB Mission Solar Energy MSE Mono, MSE Perc Mitsubishi MJE & MLE Series Neo Solar Power Co.D6M Series Panasonic VBHNxxxSA06/SA06B/SA11/SA11B VBHNxxxSA15/SA15B/SA16/SA16B, VBHNxxxKA, VBHNxxxKA03/04, VBHNxxxSA17/SA17G/SA17E/SA18/SA18E, VBHNxxxZA01/ZA02/ZA03/VBHNxxxZA04 EVPVxxx EVPVxxx(H/K/PK) Peimar SGxxxM (FB/BF) SMxxxM Phono Solar PSxxxM1-20/U PSxxxM1H-20/U PSxxxM1-20UH PSxxxM1H-20UH PSxxxM1-20/UH PSxxxM1H-20/UH PSxxxM-24/T PSxxxMH-24/T PSxxxM-24/TH PSxxxMH-24/TH Prism Solar P72 Series Q.Cells Plus, Pro, Peak, G3, G4, Peak G5(SC) , G6(+)(SC)(AC), G7, G8(+), Plus, Pro, Peak L-G2, L-G4, L-G5 Peak L-G5, L-G6, L-G7, L-G8(BFF) Q.PEAK DUO( BLK)-G6+ Q.PEAK DUO BLK-G6+/TS Q.PEAK DUO (BLK)-G7 Q.PEAK DUO L-(G7/G7.1/G7.2/G7.3/G7.7) Q.PEAK DUO (BLK) G8(+) Q.PEAK DUO L-(G8/G8.1/G8.2/G8.3) Q.PEAK DUO L-G8.3 (BFF/BFG/BGT) Q.PEAK DUO (BLK) ML-G9(+) Q.PEAK DUO XL-(G9/G9.2/G9.3) Q.PEAK DUO XL-G9.3/BFG Q.PEAK DUO-G10+ Q.PEAK DUO BLK G10(+) Q.PEAK DUO BLK G10+ /AC Q.PEAK DUO (BLK) ML-G10(a)(+) Q.PEAK DUO XL-(G10/G10.2/G10.3/G10.c/ G10.d) Q.PEAK DUO XL-G10.3/BFG Q.PEAK DUO XL-G10.d/BFG Q.PEAK DUO XL-(G11.2/G11.3) Q.PEAK DUO XL-G11.3/BFG REC RECxxxAA (BLK/Pure) RECxxxNP (N-PEAK) RECxxxNP2 (Black) RECxxxPE, RECxxxPE72 RECxxxTP, RECxxxTP72 RECxxxTP2(M/BLK2) RECxxxTP2S(M)72 RECxxxTP3M (Black) RECxxxTP4 (Black) Renesola All 60-cell modules Risen RSM Series S-Energy SN72 & SN60 Series SEG Solar SEG-xxx-BMD-HV Seraphim SEG-(6PA/6PB/6MA/6MA-HV/6MB/E01/E11) SRP-(6QA/6QB) SRP-xxx-6MB-HV, SRP-320-375-BMB-HV, SRP-xxx-BMC-HV, SRP-390-450-BMA-HV, SRP-xxx-BMZ-HV, SRP-390-405-BMD-HV Sharp NU-SA & NU-SC Series Silfab SLA-M, SLA-P, SLG-M, SLG-P & BC Series SILxxx(BL/NL/NT/HL/ML/BK/NX/NU/HC) Solaria PowerXT-xxxR-(AC/PD/BD) PowerXT-xxxC-PD PowerXT-xxxR-PM (AC) Solartech STU HJT, STU PERC & Quantum PERC SolarWorld Sunmodule Protect, Sunmodule Plus/Pro Suniva MV Series & Optimus Series (35mm) SunPower AC, X-Series, E-Series & P-Series SPR E20 435 COM (G4 Frame) Axxx-BLK-G-AC, SPR-Mxxx-H-AC SunTech STP, STPXXXS - B60/Wnhb Sun Edison F-Series, R-Series Talesun TP572, TP596, TP654, TP660 TP672, Hipor M, Smart Tesla SC, SC B, SC B1, SC B2, TxxxS, TxxxH Manufacture Module Model / Series • The frame profile must not have any feature that might interfere with the bonding devices that are integrated into the racking system • Use with a maximum over current protection device OCPD of 30A • Listed models can be used to achieve a Class A fire system rating, for steep slope applications, only when modules fire typed 1, 2, 3 w metal frame, 10 w metal frame, 19, 22, 25, 29, or 30. See Appendix page 3 PAGE APPENDIX 6SYSTEM CERTIFICATION Electrical Bonding and Grounding Test Modules The list below is not exhaustive of compliant modules but shows those that have been evaluated and found to be electrically compatible with the NXT Horizon system. Manufacture Module Model / Series Trina PA05, PD05, DD05, DD06, DE06, DE09.05 PD14, PE14, DD14, DE14, DE15, DE15V(II) DEG15HC.20(II), DEG15MC.20(II) DEG15VC.20(II), DE18M(II), DEG18MC.20(II) DE19, DEG19C.20 TSMC TS-150C2 CIGSw Upsolar UP-MxxxP, UP-MxxxM(-B) URECO D7Kxxx(H7A/H8A), D7Mxxx(H7A/H8A) FAKxxx(C8G/E8G), FAMxxxE7G-BB FAMxxxE8G(-BB), FBKxxxM8G Vikram Eldora, Somera, Ultima PREXOS VSMDHT.60.AAA.05 PREXOS VSMDHT.72.AAA.05 VSUN VSUNxxx-60M-BB, VSUNxxx-72MH VSUN4xx-144BMH Vina VNS-72M1-5-xxxW-1.5, VNS-72M3-5-xxxW-1.5, VNS-144M1-5-xxxW-1.5, VNS-144M3-5-xxxW-1.5, VNS-120M3-5-xxxW-1.0 Winaico WST & WSP Series Yingli YGE & YLM Series ZNShine Solar ZXM6-72 Series, ZXM6-NH144 ZXM6-NHLDD144 • The frame profile must not have any feature that might interfere with the bonding devices that are integrated into the racking system • Use with a maximum over current protection device OCPD of 30A • Listed models can be used to achieve a Class A fire system rating, for steep slope applications, only when modules fire typed 1, 2, 3 w metal frame, 10 w metal frame, 19, 22, 25, 29, or 30. See Appendix page 3