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INSTALLATION GUIDE

 

SOLARMOUNT ASCENDER 

2-ROW ELEVATED

UNIRAC  welcomes  input  concerning  the  accuracy  and  user-friendliness  of  this  publication.  Please  write  to  [email protected].                           

UNIRAC Code-Compliant Installation Manual

© 2022 by Unirac, Inc.  All rights reserved.  

 

 

 

 

 

 

 

 

 

 

   

PUB2023APR23

Summary of Contents for SOLARMOUNT ASCENDER 2-ROW ELEVATED

Page 1: ...2 ROW ELEVATED UNIRAC welcomes input concerning the accuracy and user friendliness of this publication Please write to publications unirac com UNIRAC Code Compliant Installation Manual 2022 by Unirac...

Page 2: ...EM LAYOUT 4 THERMAL BREAK 5 SYSTEM SETUP DISTANCES 6 SYSTEM INSTALLATION STEPS 7 22 MICRO INVERTER MOUNTING 23 STANDARD SYSTEM GROUNDING 24 BONDING CONNECTIONS AND GROUNDING PATHS 25 28 CODE COMPLIANC...

Page 3: ...between the Front tilt Leg and Mid Tilt Leg EW BEAM Supports PV module Use two rails per row of modules EW Beam runs in East West direction EW REAR BRACE Connects the Rear Tilt legs EW MID BRACE Conne...

Page 4: ...WARE A1LF01M 1 T bolt and 1 serrated flange nut will be shipped with swivel L plate Use swivel L plate to secure the Tilt legs to attachment and EW Brace to the tilt leg Note Depending upon the load t...

Page 5: ...bled clamp that secures module to rail at module flange by tightening Hex Bolt MODULE MID CLAMP 302045M Pre assembled universal clamp provides module to module and module to rail bond Aluminum clamp w...

Page 6: ...p the total width of the modules plus 1 2 inch for each space between modules for mid clamp plus 0 to 1 0 to inches for each End clamp LAYING OUT L FEET FOR TOP CLAMPS Refer to the Ascender Design too...

Page 7: ...s installed in a row For additional concerns on thermal breaks in your specific project please consult a licensed structural engineer Determine the maximum rail temperature difference T between the ti...

Page 8: ...8 89cm from edge of NS rail Install mid tilt plate at center of front and rear tilt plate Note these dimensions for STEP 2 See page 9 For NS spacing measure distance between bottom edge of front tilt...

Page 9: ...BOLT SCALE 3 1 1 1 2 2 3 3 4 4 A B C D IMAGE 2 STEP B ROTATE THE T BOLT SCALE 3 1 1 2 3 A B C D COMMON STEPS FOR ALL T BOLT INSTALLATIONS STEP A INSERT T BOLT Insert T Bolt into the rail and position...

Page 10: ...length of the rail necessary for each member of the structure 4 Cutting must be accurate to next millimeter Any discrepancy in the lengths may result in difficulties during installation of the structu...

Page 11: ...NS rail and install the bolt loosely Refer to page 6 for the position of Tilt plate on the NS rail Then attach the tilt leg to the Tilt plate using two 3 8 T Bolts Similarly engage all the tilt plate...

Page 12: ...ONE SIDE OF TILT PLATE TO THE OTHER Move 5 16 thread cutting bolt from the existing side of the tilt plate to the opposite end for installing the N S Bracing Note Do not tighten the bolt now tightenin...

Page 13: ...1 SLIDE BEAM CLIP INTO NS RAIL SCALE 1 1 1 1 2 2 3 3 4 4 A A B B C C D D STEP 5 SECURE ASSEMBLY OF N S BRACE AND TILT PLATE TO TILT LEGS Rotate the frame to the recommended angle Connect the NS Bracin...

Page 14: ...Span Bay EW distance between two frames Refer to figure B for frame STEP 7 DRILL HOLES AND INSTALL CONCRETE ANCHORS Follow anchor epoxy manufacturer guidelines for hole depth and diameter Assure all...

Page 15: ...2 IMAGE 4 ONE T BOLT EDGE DIST SCALE 2 1 IMAGE 6 FULL FRAME SCALE 1 7 1 1 2 2 3 3 4 4 A A B B C C D D STEP 9 SECURE TILT LEGS TO L FOOT Lift the entire frame from the ground and secure the Tilt legs t...

Page 16: ...EW BRACE SCALE 1 1 IMAGE 7 BOTTOM L FEET MID TILT LEG SCALE 1 5 1 DE BEAM CLIP INTO NS RAIL SCALE 1 25 1 IMAGE 1 SLIDE BEAM CLIP INTO NS RAIL SCALE 1 1 1 1 2 2 3 3 4 4 A A B B C C D D 6 19 3 81 5 40 3...

Page 17: ...re the EW Beam are expected to go as calculated in PG 6 Slide the Beam clip into the NS rail with the rail on the upslope side of the beam clip and then bring the EW Beam to the marked position Ensure...

Page 18: ...ce connection To connect the high side L Foot loosen the 2nd nut on the Tilt plate and place the L Foot as shown in the Figure H Now tighten the nut to the recommended torque Mid Tilt Leg Loosen the n...

Page 19: ...and rail attach EW Bracings at bays specified by the Ascender Design tool The orientation of the EW Bracing at the two ends should be in accordance with the shown direction on Fig K Based on thermal...

Page 20: ...A A B B C C D D STEP 18 INSTALL PV MODULES Using supplied clamps attach modules to EW beams Install end clamp first then continue to use mid clamps along the array until the final module then use an e...

Page 21: ...orque to 15 ft lbs 3 Place module at least 1 91 cm from end of rail and position clamp against the module frame 7 Confirm clamp is engaged in correct module height position and that the top of the cap...

Page 22: ...t NOTE If excessive force is applied in step 2 the cap may over rotate causing it to be mis aligned with the module frame If this occurs keep rotating the cap clockwise or counter clockwise until it r...

Page 23: ...t insertion of clamp into rail slot Pressure may be applied to top or side of bracket as shown Do not force clamp into rail by pushing on bolt with excessive force For best appearance position module...

Page 24: ...ELEVATED INSTALLATION GUIDE 22 SYSTEM INSTALLATION STEPS IMAGE 2 FINAL CHECK SCALE 1 15 1 1 2 2 3 3 4 4 A A B B C C D D STEP 19 FINAL CHECK Check all fasteners to verify correct torque values and prop...

Page 25: ...lts into position INSTALL MICROINVERTER Install microinverter on to the rail Engage with bolt 10 F T T BOLT IMAGE 2 INSTALL MICROINVERTER SCALE 1 1 5 IMAGE 3 TORQUE THE NUT SCALE 1 1 5 1 1 2 2 3 3 4 4...

Page 26: ...t data sheet for more details Model No WEEB LUG 6 7 ILSCO LAY IN LUG CONDUCTOR UNIRAC P N 008009P Alternate Grounding Lug Drill deburr hole and bolt thru both rail walls per table TORQUE VALUE 5 ft lb...

Page 27: ...ING RAIL SPICE BAR 5 16 self drilling screw creates bond between splice bar and EW beams Aluminum splice bar spans across rail gap to create rail to rail bond Note Splice bar and bolted connection are...

Page 28: ...pierce rail to create bond between rail and lug Solid copper wire connected to lug is routed to provide final system ground connection NOTE Ilsco lug can also be used when secured to the side of the...

Page 29: ...Ground Path Module Grounding Lug Rail Grounding Lug Min 10 AWG 105 C Copper Wire Bonding UAF End Clamp Note Every array must have atleast one grounding lug either a module grounding lug or a rail grou...

Page 30: ...ROW ELEVATED INSTALLATION GUIDE 28 Bonding Connections Grounding Paths Fault Current Ground Path Bonding Connection Min 10 AWG 105 C Copper Wire Rail Grounding Lug FLAT ROOF NS BRACE R E A R E W B R...

Page 31: ...mount a PV module complying with UL1703 or UL61730 only when the specific module has been evaluated for grounding and or mounting in compliance with the included instructions UL2703 CERTIFICATION MARK...

Page 32: ...to UL 2703 certification Unirac performs internal testing beyond the requirements of certification tests in order to establish system functional limits allowable loads and factors of safety These tes...

Page 33: ...12 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 MB AG P P PB AG CS3Y MB AG Manufacture Module Model Seri...

Page 34: ...C Q1K V5 LGxxxN3K V6 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 Manufacture Module Model Series Maxeon SP...

Page 35: ...xxx BG BK BL HC HC HL HM HN ML NL NT NX NU Solar4America S4Axxx 108MH10BB S4Axxx 72MH5BB SolarEver USA SE 166 83 xxxM 120N SE 182 91 xxxM 108N Manufacture Module Model Series Solaria PowerXT xxxR AC...

Page 36: ...thesis are those that may or may not be present in a compatible module s model ID Slashes between one or more items indicates that either of those items may be the one that is present in a module s mo...

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