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Related Manuals for UNIRAC GRIDFLEX 10
Summary of Contents for UNIRAC GRIDFLEX 10
- Page 1 INSTALLATION GUIDE UNIRAC Code-Compliant Installation Manual © 2024 by Unirac, Inc. All rights reserved. PUB2024SEP20 UNIRAC welcomes input concerning the accuracy and user-friendliness of this publication. Please write to publications@unirac.com.
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Page 2: Table Of Contents
INSTALLATION GUIDE TABLE OF CONTENTS TOOLS AND SPECIFICATIONS ....... . 1 SYSTEM COMPONENTS . -
Page 3: Tools And Specifications
TOOLS AND SPECIFICATIONS TECHNICAL DATA SHEET PAGE TECHNICAL SPECIFICATIONS: Maximum System Voltage: 1500V Maximum Module Dimensions: 100" x 52" Minimum Module Dimensions: 65" x 39" Hardware: Stainless steel TOOLS REQUIRED OR RECOMMEND FOR LAYOUT, ATTACHMENTS, AND INSTALLATION: • Drill (Do Not Use an Impact Driver) •... -
Page 4: System Components
SYSTEM COMPONENTS TECHNICAL DATA SHEET PAGE NOTE: Mid rails have a provision to adjust the row to row spacing (10” or 13”). Two module-width scales, each corresponding 10” and 13” row spacing are printed on rail, so that rails are overlapped to achieve accurate module width connection. - Page 5 SYSTEM COMPONENTS TECHNICAL DATA SHEET PAGE SOUTH CLAMP (P/N: 380700) NORTH STANCHION (P/N: 380601) WIND DEFLECTORS (P/N: 380400/ 380410/380420/ The south clamp assembly is made of a The north stanchion assembly is made of a mill finish Aluminum and secures the 380430/ 380440/ 380450/380401 structural steel and engages the return module.
- Page 6 SYSTEM COMPONENTS TECHNICAL DATA SHEET PAGE WIND DEFLECTOR BRACKET (P/N: 380405) SOUTH RAIL STIFFENER BALLAST RAIL BRACE (P/N: 380301) (P/N: 380050/380051) The wind deflector end bracket is made of The ballast rail brace is made out of steel and reinforces the cantilever of the The south rail stiffener is made of steel stainless steel and reinforces the ballast wind deflector.
- Page 7 INSTALLATION STEPS INSTALLATION GUIDE PAGE INSTALL ROOF PADS ON RAILS Attach roof pads to all pre-punched slots in rails. Install a roof pad under every north stanchion, rail overlap, and south clamp located at the south edge of the array. CAUTION Ensure there is no direct contact between metal parts and the roof membrane to prevent damage and potential leaks.
- Page 8 INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 1: MARK ARRAY LAYOUT ON ROOF: STEP 2: LOCATE ARRAY ON ROOF: STEP 3: ATTACH SOUTH RAIL TO MID RAIL: Use chalk line to mark distances from roof edge Place south rails on previous chalk lines. Overlap Mid-Rails on top of South Rails, use Follow L1 &...
- Page 9 INSTALLATION STEPS INSTALLATION GUIDE PAGE NOTE: In STEP 3 and STEP 4 • If two riv-nuts are showing in the rail slots, secure the rails to the riv-nut that is closer to the North side. • For modules that do not measure to 1/4" increments, round down to the next 1/4"...
- Page 10 INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 5: ATTACH SOUTH CLAMP STEP 6: ATTACH NORTH CLAMP: • Place the south clamp at the specified location on the base rail. • Insert the front tab of the North Clamp into the • Align holes in the south clamp with the side holes of rail and insert a clevis pin (from slot on the base rail at the specified location.
- Page 11 INSTALLATION STEPS INSTALLATION GUIDE PAGE South Edge STEP 8: BALLAST RAILS INSTALLATION (SOUTH-SIDE OF BALLAST BLOCK): STEP 9: BALLAST RAILS INSTALLATION • Place the ballast rails at L1 span locations on the east and west edges and continue placing (SOUTH EDGE OF ARRAY): them at L2 span locations.
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Page 12: Installation Steps
INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 10: BALLAST RAIL BRACE INSTALLATION (CONT.) STEP 10: BALLAST RAIL BRACE • Pull the ring on the rail brace until it clicks onto the rail. INSTALLATION (CONT.) • Twist the other end of the rail brace and slide it under the ballast rail to make the rail brace perpendicular to ballast rails. - Page 13 INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 11: LAY BALLAST BLOCKS: • Lay ballast blocks into ballast rails and quantity of blocks to be placed should be as per engineering report or U-Builder report. • Ballast block placement for a given number of blocks - See pages 12 &...
- Page 14 INSTALLATION STEPS INSTALLATION GUIDE PAGE BALLAST BLOCKS CONFIGURATIONS AT EAST -WEST EDGES 1-Block Configuration 2-Block Configuration 3-Block Configuration 5-Block Configuration 4-Block Configuration 6-Block Configuration Note: For installations with more than 6 blocks, two ballast rails must be installed on top of each other on both sides. 7-Block Configuration 8-Block Configuration...
- Page 15 INSTALLATION STEPS INSTALLATION GUIDE PAGE BALLAST BLOCKS CONFIGURATIONS AT L2 SPANS 1-Block Configuration 2-Block Configuration 3-Block Configuration 5-Block Configuration 4-Block Configuration 6-Block Configuration 7-Block Configuration 8-Block Configuration...
- Page 16 INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 12: STEP 13: STEP 14: • Place module at South Clamps. Push sliders down to fully engage module Rotate the module downward and position it on • Pull sliders toward module and rotate it flange and tighten the bolt.
- Page 17 INSTALLATION STEPS INSTALLATION GUIDE PAGE CAUTION Ensure that each wind deflector is attached to three north stanchions, while the east and west edge wind deflectors are attached to only two north stanchions. STEP 18: WIND DEFLECTOR BRACKET INSTALLATION Position the bracket beneath the module and Slide the bracket to align the bracket hole with Secure the bracket to the wind deflector with a pull it to engage with the module's return...
- Page 18 INSTALLATION STEPS INSTALLATION GUIDE PAGE STEP 19: Check all the fasteners to verify correct torque values.
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Page 19: Module Replacement
14 connected. rotate the slider 90° clockwise. IMPORTANT: Unirac recommends periodic re-inspection of the installation for loose components, loose fasteners, and any corrosion, such that if found, the affected components are to be immediately re-tightened or replaced. -
Page 20: Wire Management
WIRE MANAGEMENT INSTALLATION GUIDE PAGE INSTALL WIRE MANAGEMENT CLIP 1. Place the wire management clip on the ballast rail and press it to engage. 2. Rotate the wire management clip to secure it to the ballast rail. INSTALL INTER-ROW WIRE MANAGEMENT COVER INSTALL HOMERUN WIRE MANAGEMENT COVER •... -
Page 21: Bonding And Grounding
One lug is recommended per continuous array, not to exceed 150ft X 150ft. Unirac GridFlex 10 is intended to be used with PV modules that have a system voltage less than or equal to that allowable by the National Electric Code (NEC). - Page 22 BONDING AND GROUNDING INSTALLATION GUIDE PAGE Bonding Clamp NOTE: Grounding path can be established by installing the Grounding Lug ground lug and copper wire connection at specified locations on ballast rails Min. 10AWG, 105°C Copper Wire Grounding location on Ballast Rail...
- Page 23 CLASS A FIRE RATING MOUNTING ORIENTATION rating is only valid when the installation is conducted in GridFlex 10 has achieved Class A system level fire performance for accordance with the assembly instructions contained in type 1, 2, 3 with a metal frame, 19, 22, 25, 29 and 30 module this manual over a fire resistant roof covering rated for the constructions.
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Page 24: Code Compliance Notes
CODE COMPLIANCE NOTES SYSTEM CERTIFICATION PAGE UL2703 System Label: To comply with UL2703 system rating, North rail has a stamp of system label as shown below ###X - Vendor ID MM/YYYY - Month and Year of Manufacturing Label Note: North Rail has a system label at the location shown in the diagram. -
Page 25: Mechanical Load Testing
The GridFlex 10 system has been tested to the mechanical load provisions of UL2703 and covers the following basic parameters: • PV module may have reduced load rating, independent of the GridFlex 10 rating. Please consult the PV module manufacturer's installation guide for more information. -
Page 26: Compatible Modules
• Use with a maximum over current protection device OCPD of 30A • Please see GridFlex 10 information at Unirac.com to ensure the exact solar module selected is approved for use with GridFlex 10 • Listed models can be used to achieve a Class A fire system rating, for low slope applications, only when modules fire typed 1, 2, 3 with a metal frame, 19, 22, 25, 29 or 30. - Page 27 • Use with a maximum over current protection device OCPD of 30A • Please see GridFlex 10 information at Unirac.com to ensure the exact solar module selected is approved for use with GridFlex 10 • Listed models can be used to achieve a Class A fire system rating, for low slope applications, only when modules fire typed 1, 2, 3 with a metal frame, 19, 22, 25, 29 or 30.
- Page 28 • Use with a maximum over current protection device OCPD of 30A • Please see GridFlex 10 information at Unirac.com to ensure the exact solar module selected is approved for use with GridFlex 10 • Listed models can be used to achieve a Class A fire system rating, for low slope applications, only when modules fire typed 1, 2, 3 with a metal frame, 19, 22, 25, 29 or 30.
- Page 29 • Use with a maximum over current protection device OCPD of 30A • Please see GridFlex 10 information at Unirac.com to ensure the exact solar module selected is approved for use with GridFlex 10 • Listed models can be used to achieve a Class A fire system rating, for low slope applications, only when modules fire typed 1, 2, 3 with a metal frame, 19, 22, 25, 29 or 30.
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