Table of Contents
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Table of Contents
Summary of Contents for RBI UL 2703
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Page 1: Installation Guide
RBI Solar Versatile Roof Mount Solution | RS-VS Pitched Roof Mounting System For Commercial & Residential Solar PV Applications UL 2703 Listed for Bonding and Grounding RBI Solar | 1292 Logan Circle NW | Atlanta, GA 30318 | 513-618-7240 | info@rbisolar.com... -
Page 2: Table Of Contents
The entire RBI Solar Versatile Roof Mount Solution is UL 2703 Listed for Bonding and Grounding. Some components, such as flashing and L-feet, are not in the ground path and therefore were not required under UL 2703 to be evaluated. -
Page 3: Component Overview
C O M P O N E N T O V E R V I E W The RBI Solar Versatile Roof Mount Solution provides a simple, fast, and cost-effective flush mounting solution for PV modules on pitched roofs. •... -
Page 4: Applicable Roof Types
Membrane The RBI Solar RS-VS mounting system carries a Class A Fire Rating under UL 1703 on steep-sloped roofs when used with all Type 1, Type 2, and Type 3 modules per testing performed by Intertek. It is important to check the following items prior to installation on the roof: •... - Page 5 F L A S H I N G M E T H O D S ( C O N T I N U E D ) RBI Solar RS-VS GF Flashing Set with Lag Bolt This code-compliant flashing set is used for residential or 5/16x6 Lag Bolt commercial asphalt shingle applications.
- Page 6 F L A S H I N G M E T H O D S ( C O N T I N U E D ) RBI Solar RS-VS Compatibility with S-5! Clamps The RBI Solar RS-VS L-foot can attach to all S-5! products used in projects with standing seam and corrugated metal roof panels. Below are the common brackets used in the industry.
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Page 7: Rail Support Locations
R A I L S U P P O R T L O C A T I O N S Stress on the RBI Solar RS-VS rail is proportional to the loading and the length of the rail between supports. -
Page 8: Rail Design
M O D U L E O R I E N T A T I O N RBI Solar RS-VS Rails should run perpendicular to structural members. The orientation of the modules is dependent on the direction of the structure you are attaching to. Trying to run the rails parallel to the structural members limits the spacing between rails to the spacing of the structure. -
Page 9: Tools & Materials
Approximately 2/3 to 3/4 of the module length (please refer to module manufacturer’s specifications)* For L-foot spacing, please refer to the RBI Solar RS-VS Design Guide. Note that at least one L-foot should be placed near each splice connection. -
Page 10: Rs-Vs Installation
There will be a slight gap between rails for thermal expansion. Important: At least ONE L-foot must be installed close to each IB splice connector. See RBI Solar RS-VS Layout for additional information. Step 4. End Clamps 8 ft.-lbs. -
Page 11: Rs-Vs Accessory Mounting Installation
R B I S O L A R A C C E S S O R Y M O U N T I N G I N S T A L L A T I O N As part of the UL 2703 Listing, any type of flat plate (common to most microinverters and power optimizers) can be bonded to the rest of the system provided that the plate meets the requirements listed below. -
Page 12: Rs-Vs Grounding
• See Appendix A for alternate grounding method M8-1.25 304SS serrated flange nut 6-14 AWG, Cu, solid or stranded WEEB-Lug-8.0 (tighten to 7 ft-lbs on copper wire) WEEB-8.0 M8-1.25x20mm 304SS T-bolt w/ nylon patch RBI Solar RS-VS | IG 2017... - Page 13 The WEEB-Bonding Jumper 8.0 provides the bond from rail to rail. The VS Splice Connector is not bonded to the system. M8-1.25x20mm 304SS T-bolt w/ nylon patch WEEB-8.0 Bonding Jumper 8.0 M8-1.25 304SS serrated flange nut RBI Solar RS-VS | IG 2017...
- Page 14 The end clamp and mid clamp connectors are not bonded to the system. The WEEB-CCR2 is what properly bonds the modules to the rail. M8-1.25x40mm 304SS hex head bolt RBI Solar mid clamp top plate M8-1.25 304SS square nut with Nyplate coating RBI Solar mid clamp connector WEEB-CCR2...
- Page 15 WEEB clip and Bonding Jumper bond one rail to another WEEB clip bonds the rail to the lug. The solid copper rail across the splice connector. wire provides the ground connection. RBI Solar RS-VS | IG 2017...
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Page 16: Appendix A: Alternative Grounding Methods
Aside from the WEEB-Lug-8.0, the Ilsco GBL-4DBT lug can be used as an approved grounding lug. 10-32 304 SS hex nut No. 10 304 SS star washer Ilsco DE-OX oxide inhibitor 0.196” drilled hole in RBI Solar VS-R Rail Ilsco DE-OX oxide inhibitor Tin-coated copper Ilsco GBL-4DBT lug No. 10 304 SS split lock washer 10-32x0.75 304 SS HH bolt... -
Page 17: Appendix B: Module Maintenance
Tighten to 35 in-lbs. NOTES: 1. It is important to periodically inspect the installed system for loose components, loose fasteners, and corrosion. If any corroded parts are discovered, the affected parts must immediately be replaced. RBI Solar RS-VS | IG 2017... -
Page 18: Appendix C: Additional Grounding Notes
The RBI Solar RS-VS is a non-separately derived system that is listed under UL 2703 and was evaluated with the modules listed in the table below. The max fuse rating is 30A, which covers most modules.