BVM661 Degree Ballasted Racking System

Product Information

Specifications

• Product: 10-Degree Ballasted Racking System
• Manufacturer: UNIRAC
• Installation Manual: UNIRAC Code-Compliant Installation
  Manual

Introduction

The 10-Degree Ballasted Racking System by UNIRAC is a versatile
system designed for mounting photovoltaic modules on flat roof
surfaces. This installation guide provides detailed instructions
and important safety information for proper installation and usage
of the system.

Field Support Contact Information

UNIRAC offers dedicated engineering expertise and superior
customer support. For assistance with installation procedures or
specific applications, please contact our Field Support Specialists
at 866-488-6794 or [email protected].

Installer Responsibility

The installer is solely responsible for ensuring the proper
installation of the 10-Degree Ballasted Racking System. This
includes following the instructions provided in this installation
guide, complying with applicable codes and regulations, and
performing periodic re-inspections to ensure the system’s integrity
and safety.

Warnings and Safety

WARNING: It is important to adhere to all
safety guidelines provided in this installation guide to prevent
accidents, injuries, or damage to the system.

EcoFoot2+ General Application Notes

The EcoFoot2+ system is designed to mount photovoltaic modules
on various roof surfaces, including EPDM, TPO, PVC, Mineral Cap
Sheet (a.k.a. Rolled Asphalt), and Tar and Gravel. The system can
accommodate a maximum roof slope of 7 degrees, with a limit of 3
degrees for unattached seismic conditions.

For areas with extreme wind conditions, the EcoFoot2+ system is
suitable for flat roof surfaces. It is recommended to contact
UNIRAC for clarification or assistance regarding wind zone
requirements.

Installation Requirements

The EcoFoot2+ system is a ballasted photovoltaic racking system
that requires the use of all EcoFoot2+ components, the specified
module, and proper ballast placement as prescribed in the PE
stamped design. It is crucial not to leave any sub-array unattended
during installation if any of these elements are missing, as it
could compromise the condition of the roof.

During the installation process, bonding elements are
incorporated into EcoFoot2+ components to ensure a bonded system.
Installers must follow the specific steps outlined in the
installation guide to achieve a safely and properly bonded system.
Additionally, proper precautions should be taken to prevent bare
copper from contacting bare aluminum when wiring the array.

Re-Inspection

UNIRAC recommends periodic re-inspection of the installed system
to identify any loose components, loose fasteners, or signs of
corrosion. If any such issues are found, the affected components
should be immediately replaced to maintain safety and system
functionality.

FAQ (Frequently Asked Questions)

1. Can the 10-Degree Ballasted Racking System be used on roofs

with a slope greater than 7 degrees?

No, the maximum roof slope that the system can accommodate is 7
degrees. Exceeding this limit may compromise the stability and
safety of the installation.

2. Are there any specific requirements for wiring the

array?

Yes, it is important to prevent bare copper from contacting bare
aluminum when wiring the array. This helps to avoid potential
electrical issues and ensures the system functions properly.

3. How often should the installation be re-inspected?

UNIRAC recommends periodic re-inspection of the installation for
loose components, loose fasteners, and signs of corrosion. It is
important to promptly replace any affected components to maintain
safety and system performance.

INSTALLATION GUIDE 10-DEGREEBALLASTEDRACKINGSYSTEM

UNIRAC Code-Compliant Installation Manual
© 2022 by Unirac, Inc. All rights reserved.

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

P U B2022O CT 13

INSTALLATION GUIDE 10-DEGREEBALLASTEDRACKINGSYSTEM
TABLE OF CONTENTS
LEGAL NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 WARNINGS AND SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 GENERAL APPLICATION NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 SYSTEM COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SYSTEM INSTALLATION STEPS . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12 MID SUPPORT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-14 MODULE REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 ROOF ATTACHMENT WITH STRUT . . . . . . . . . . . . . . . . . . . . . . . . .16-21 GROUNDING AND BONDING PATHS . . . . . . . . . . . . . . . . . . . . . . . . . .22 CODE COMPLIANCE NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 MECHANICAL LOAD TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-26 COMPATIBLE MODULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
P U B2022O CT 13

10-DEGREE BALLASTED RACKING SYSTEM
Legal Notices ©2017 Unirac®, Inc. Unirac® and EcoFoot2+® are registered trademarks of Unirac, Inc.

LEGAL NOTICES 1
INSTALLATION GUIDE PAGE

10-DEGREE BALLASTED RACKING SYSTEM

INTRODUCTION 2
INSTALLATION GUIDE PAGE

Field Support Contact Information
Unirac proudly offers dedicated engineering expertise and superior customer support. For questions about the installation procedures or a specific application, please contact our Field Support Specialists at 866-488-6794 or [email protected]. Installer Responsibility
The installer is solely responsible for:
· Utilizing all necessary safety equipment, as required by applicable rules and regulations. · Complying with all applicable local and national building codes, including any that may supersede this manual. · Ensuring that Unirac® EcoFoot2+® and other products are appropriate for the specific installation and are designed for the installation environment. · Ensuring that the roof, its rafters, connections, and other structural support members can support the array under all conditions. · Maintaining the waterproof integrity of the roof including selection of appropriate flashing if the system is being installed using attachments. · Ensuring safe installation of all electrical aspects of the entire system

10-DEGREE BALLASTED RACKING SYSTEM

INTRODUCTION 3
INSTALLATION GUIDE PAGE

Disclaimer of Liability
Unirac® does not assume responsibility and expressly disclaims liability for loss, damage, or expense arising out of, or in any way connected with installation, operation, use, or maintenance by using this manual. Unirac assumes no responsibility for any infringement of patents or other rights of third parties, which may result from use of modules. No license is granted by implication or under any patent or patent rights. The information in this manual is believed to be reliable, but does not constitute an expressed and/or implied warranty. Unirac reserves the right to make changes to the product, specifications, data sheets and this manual without prior notice. This document is not prescriptive regarding safety and does not purport to address all the safety concerns that may arise with its use. Contractors should become familiar with all applicable safety, health, and regulatory requirements before beginning work. Unauthorized field modification of Unirac components or assemblies may affect Unirac warranty coverage. Provide written drawings for Unirac’s review, comment and approval prior to attempting any field modifications.

10-DEGREE BALLASTED RACKING SYSTEM

WARNINGS AND SAFETY 4
INSTALLATION GUIDE PAGE

Warnings & Safety Both electrical and roofing knowledge are required to correctly and safely install a solar photovoltaic system. Only qualified and certified installation professionals should install EcoFoot2+. Failure to follow the methods and procedures outlined in this guide may result in injury and/or damage to property. Carefully read this guide before starting any work. Store a copy of this guide on the job site at all times and contact Unirac with any installation questions related to EcoFoot2+.
WARNING
Please note the following warnings when installing EcoFoot2+: · EcoFoot2+ components fit together tightly and could cause pinch injuries. · EcoFoot2+ components may be hot to the touch if left in the sun.
Please follow the safety requirements below when installing EcoFoot2+: · Always keep children and unauthorized people away from work areas. · Always wear required OSHA approved Personal Protective Equipment (PPE). · Always use insulated tools when working with or near electrical systems. · Always provide OSHA approved fall protection for all installation personnel. · Never wear jewelry during mechanical and electrical installation work. · Never work in rain, snow or extremely windy conditions. · Never leave a module unsupported or unsecured on the roof. · Never install broken photovoltaic modules. · Never use photovoltaic modules as a work surface.

GENERAL APPLICATION NOTES 5

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

EcoFoot2+ General Application Notes
Site-Specific System Design: Unirac provides drafting services on all EcoFoot2+ projects. This service produces a site-specific design package with an Engineered Stamped Layout including detailed ballast plan and bill of materials.
Roof Type: EcoFoot2+ is designed to mount photovoltaic modules to a range of roof surfaces, including: EPDM, TPO, PVC, Mineral Cap Sheet (a.k.a. Rolled Asphalt), Tar and Gravel.
Roof Slope Range: 0-7 degrees maximum, 3-degree limit for unattached seismic.
Wind Zone: EcoFoot2+ is designed to mount photovoltaic modules on flat roof surfaces with a maximum pitch of 7 degrees in areas with extreme wind conditions. Please contact Unirac for clarification or assistance.
Installation Requirements: EcoFoot2+ is ballasted photovoltaic racking designed as a system which requires all EcoFoot2+ components, the specific module, and ballast placement prescribed in the PE stamped design. The absence of any of these elements in any given sub-array could present a compromised condition on the roof. Arrays shall not be left unattended in such a state during an installation.
This install guide officially documents the components used and proper methods for an EcoFoot2+ installation. Bonding elements are incorporated into EcoFoot2+ components. As the system is built on the roof, components and modules are bonded together. Specific steps to ensure a bonded system are described through the installation guide. It is the installer’s responsibility to ensure that the system is safely and properly installed, and that the system is bonded back to a final ground point.
When wiring the array, keep bare copper from contacting bare aluminum.

GENERAL APPLICATION NOTES 6

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

Thermal and Seismic Design Requirements: EcoFoot2+ is a flexible and expandable design that accommodates various array geometries. Maximum widths for arrays are as follows: · 60-cell modules, 26 modules in a row · 72-cell modules, 22 modules in a row Minimum spacing between sub-arrays is 6″. Site specifics may further limit array sizes and spacing.
Re-Inspection: 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 replaced. Any components showing signs of damage that compromise safety shall be replaced immediately.
Compatible Modules: Unirac has evaluated many photovoltaic modules for installation compatibility with the EcoFoot 2+ 10-degree racking system. A list of compatible modules may be found in “EcoFoot2+ Install Guide Compatible Modules Page” on our website: www.unirac.com
UL2703 Qualification: In cases where UL 2703 certification is required, the EcoFoot2+ system conforms to the UL2703 Standard for grounding and bonding and fire ratings. The EcoFoot2+ system may be used to ground and/or mount a PV module complying with UL1703 only when the specific module has been evaluated for grounding and /or mounting in compliance with the included instructions.
EcoFoot2+ system is to be installed over a fire resistant roof covering rated for the application. EcoFoot2+ Racking maintains a Class A fire rating when installed in landscape orientation according to the installation instructions, on a low slope roof Class A roof with Type 1, Type 2, Type 3 module with a metal frame, Type 19, Type, 22, & Type 25. Type 29 and Type 30 modules whose encapsulation thickness matches the criteria for Type 3 modules are also an approved fire type. Contact Unirac with any questions about fire type compatibility.

Further information about Unirac’s UL2703 Listing, including module load ratings may be found in APPENDIX-A of this manual or at www.unirac.com.

10-DEGREE BALLASTED RACKING SYSTEM

EcoFoot2+ Core Components
A EcoFoot2+ Base

B Clamp-Lower

SYSTEM COMPONENTS 7
INSTALLATION GUIDE PAGE
C Clamp-Upper

D Clevis Pin

E Deflector

F Nut

C.NO. A

DESCRIPTION

8 ITEM NO.
1 2

D
EcoFoot2+ Base

B Universal Clamp Lower

C Universal Clamp Upper

D

Clevis Pins

C

E

Deflector

F Nut

G

Mid-Support UppeBr

H

Mid-Support Lower

C.NO. – Component Number

7

6

5

PART NUMBER

DESCRIPTION

QTY.

ES11204-CP

ECOFOOT 2+ MID SUPPORT UPPER BRACKET

1

PART NUMBER ES11206-CP

ECOFOOT 2+ EPDM PAD

1

ES20207
1.902
ES10459

ES10458 ES10476-CP

ES20311

ES10277

ES111 207

ES112 208

A

8.560

4

3

2

1

REVISIONS

REV.

DESCRIPTION

DATE

DRAWN BY

A

INITIAL RELEASE FOR PRODUCTION

12/17/2019

VG

B

PART ES11204-CP REVISED

5/1/2020

VG

8

7

6

5

ITEM NO.

PART NUMBER

DESCRIPTION

QTY.

1

ES11205-CP

ECOFOOT 2+ MID SUPPORT LOWER BRACKET D 1

2

ES11206-CP

ECOFOOT 2+ EPDM PAD

1

D

4

3

2

1

REVISIONS

REV.

DESCRIPTION

DATE

DRAWN BY

A

INITIAL RELEASE FOR PRODUCTION

12/17/2019

VG

B

REVISED ES11205-CP

5/1/2020

VG

D

G Mid-Support Upper
C C
1

H Mid-Support Lower
C

B

2

B

A

SOLIDWO8RKS Educational Product. Fo7r Instructional Use Only. 6

5

UNLESS OTHERWISE SPECIFIED: DIMENSIONS BASED ON ASME Y14.5-2009 STANDARD. SURFACE FINISH 125 ON

PART NAME:
ECOFOOT 2+ MID SUPPORT UPPER

MACHINED SURFACES. ON PLATED PARTS DIMENSIONAL LIMITS APPLY AFTER PLATING. DIMENSIONS OF MOLDED PARTS APPLY TO FINISHED PART; NO ALLOWANCE HAS BEEN MADE FOR SHRINKAGE. USE STANDARD SAE GD&T FOR HARDWARE.

PART NUMBER:
ES11207

STATUS:

REVISION:

PROTO/DEVEL/PROD B

A

DO NOT SCALE DRAWING ALL DIMENSIONS IN INCHES BREAK ALL SHARP EDGES * PARTS MUST HAVE NO BURR OR FLARE

TOLERANCES U.O.S

.00

0.03″

.000

0.015″

ANGLES 2°

THIRD ANGLE PROJECTION
SHEET SIZE

MATERIAL:
ASM
DESIGNED BY:
VIK GOPAL
ENGINEERING APPROVAL:
ELLIOT SMITH

FINISH:
ASM
DESIGN DATE:
12/17/19
ENG APPROVAL DATE:

COLOR:
ASM
PART MASS (lbs)
0.45
SCALE:
1:2

B

UNLESS OTHERWISE SPECIFIED: DIMENSIONS BASED ON ASME Y14.5-2009 STANDARD. SURFACE FINISH 125 ON

PART NAME:
ECOFOOT 2+ MID SUPPORT LOWER

MACHINED SURFACES. ON PLATED PARTS DIMENSIONAL LIMITS APPLY AFTER PLATING. DIMENSIONS OF MOLDED PARTS APPLY TO FINISHED PART; NO ALLOWANCE HAS BEEN MADE FOR SHRINKAGE. USE STANDARD SAE GD&T FOR HARDWARE.

PART NUMBER: ES11208

STATUS:

REVISION:

PROTO/DEVEL/PROD B

A

DO NOT SCALE DRAWING TOLERANCES U.O.S

• ALL DIMENSIONS IN INCHES BREAK ALL SHARP EDGES PARTS MUST HAVE NO BURR OR FLARE

.00

0.03″

.000

0.015″

ANGLES 2°

Ecolibrium Solar,Inc.

244 West State St, Athens OH 45701

THIRD ANGLE PROJECTION
SHEET SIZE B

MATERIAL: ASM
DESIGNED BY: VIK GOPAL ENGINEERING APPROVAL: ELLIOT SMITH
MANUFACTURING APPROVAL: JONAH COLES

FINISH: ASM DESIGN DATE:
12/17/19 ENG APPROVAL DATE:
MFG APPROVAL DATE:

COLOR: ASM PART MASS (lbs)
0.23 SCALE:
1:1
SHEET 1 OF 1

4

3

2

1

SYSTEM INSTALLATION STEPS 8

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

EcoFoot2+ Installation Instructions

STEP 1: Chalk lines on roof denoting two outside edges of the EcoFoot2+® according to project drawing. Place EcoFoot2+® Bases (A) in position.

TIPS

A

· Ensure lines are square using 3-4-5 principle.

· As you build the array, panels will space Bases. Roughly place a few rows of Bases at a time so that they are within reach of final location.

· If installation requires 2 blocks or fewer on the north row, north row Bases

can be turned around 180 degrees and tucked under the panel.

· If installation requires butyl, then butyl will be pre-installed on the bottom

of the Base with protective tape. Ensure these butyl components are placed where specified in project drawing.

CAUTION

Remove protective tape after Step 6

C

STEP 2: Place Lower Clamp (B) and Upper Clamp (C) into EcoFoot2+ Base (A) as

shown. Push Clevis Pin (D) completely into EcoFoot2+® Base(A) to secure Rocker.

B

TIP

D

Only install Clamps where modules will rest. Refer to diagram below for correct

placement and orientation of Clamps.

D

SYSTEM INSTALLATION STEPS 9

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STEP 3: Place module onto EcoFoot2+® Base (A). Using a 1/2″ deep socket, Torque nuts (F). Space modules 1/2″ apart using the alignment marks on
the Clamps.

Torque Nuts (F) to 14 ft-lbs.

SYSTEM INSTALLATION STEPS 10

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STEP 4: Place Ballast (not included) as required per PE Certified Ballast Plan provided.
NOTE;
In freeze/thaw environments, use concrete block with minimum compressive strength of 3,000psi (ref ASTM C1491-03 Standard Specifications for Concrete Roof Pavers).

EcoFoot2+® Ballast Block Placement
One Block
When using a single ballast block, lay the block flat in the center of EcoFoot2+ Base tray

Two Blocks
When using two ballast blocks, lay the blocks flat in the EcoFoot2+ Base tray.

Three Blocks
When placing three ballast blocks in the EcoFoot2+ Base tray, lay one block flat and two on the long edge. This configuration helps to prevent blocks from becoming dislodged accidentally.

SYSTEM INSTALLATION STEPS 11

10-DEGREE BALLASTED RACKING SYSTEM

A

INSTALLATION GUIDE PAGE

A

STEP 6: Route, connect, and secure conductors.
TIP: Wire clips attached to the module flange (not included) can be used to dress conductors in a row of modules. Integrated snap features in the Base can be used to dress conductors bridging rows.

STEP 7: For systems that utilize mid supports, install them prior to installing

wind deflectors in the next step. See Mid Support Installation section for in-

DETAIL A

SCALE 4 : 1

structions

STEP 8: Place Deflectors (E) into slot on EcoFoot2+® Base and attach to Rock-

er using Nut (F) provided. Using a 1/2″ deep socket, torque Nut (F). Application

F

of anti-seize on threaded post is recommended.

Torque Nut to 14 ft-lbs.
E

SYSTEM INSTALLATION STEPS 12

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STEP 9: FINAL CHECK Check all fasteners to ensure that the torque values are correct and that the modules are properly positioned.

MID SUPPORT INSTALLATION 13

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

MID SUPPORT KIT INSTALLATION
The Mid Support Kit is a non-standard item and only used in heavy load conditions or with light-duty panels. The design team at Unirac will indicate use when required. INSTALLING LOWER MID-SUPPORT

Locate module center point +/-1″ using PV module cell lines. Slide the Lower Mid-Support slots onto module frame.

Pull outwards to sit flat on the roof.

1

Ensure the Mid Support positioned flat on the roof.

10-DEGREE BALLASTED RACKING SYSTEM
INSTALLING UPPER MID-SUPPORT

MID SUPPORT INSTALLATION 14
INSTALLATION GUIDE PAGE

Locate module center point +/-1″ using PV module cell lines.

Slide the Lower Mid-Support slots onto module frame.

Pull outwards to sit flat on the roof.

Ensure the Mid Support positioned flat on the roof.

Typical view of Mid supports after installation

10-DEGREE BALLASTED RACKING SYSTEM
Module Removal

MODULE REMOVAL 15
INSTALLATION GUIDE PAGE
CAUTION · Module removal may disrupt the bonding path and could
introduce the risk of electric shock. · See Grounding and Bonding Paths section to determine
when module removal may disrupt the bonding path. · Follow Steps A through C to maintain the bonding path.
Modules should only be removed by qualified persons in compliance with these instructions.

If a module is to be removed from an array, the following steps must be taken.
STEP A: Determine module to be removed Identify and mark the module to be removed.
STEP B: Install ground lug on adjacent modules Install a WEEB Lug 6.7 on both modules adjacent to the module to be removed. Utilize the grounding hole on the frame of the module.
STEP C: Connect Bonding Jumper Lay a bare #6 CU conductor into the two lay in lugs connected to the adjacent modules. Tighten lay-in lug terminal screw onto the conductor and torque to 7 ft- lbs. When wiring the array, keep bare copper from contacting bare aluminum.

ROOF ATTACHMENT WITH STRUT 16

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

INSTALLATION OF ROOF ATTACHMENT WITH STRUT

TOOLS REQUIRED
1. 1/2″ Deep Socket 2. 9/16″ Deep Socket 3. 1/2″ Box End Wrench 4. Calibrated Torque Wrench 5. Power Drill with 3/8″ Drill Bit
Torque fasteners to 14 ft-lbs.

COMPONENTS

Overview of Attachment System

EcoFoot Roof to Strut Hardware Kit P/N: ES10843
Note: P/N: Part Number

EcoFoot Strut to Module Hardware Kit P/N: ES10844

Strut (1-5/8″ x 1-5/8″) Length specified on array layout.

Roof Attachment Specified based on roof type.

Note: Roof Attachments require roofing screws, available by others. Check with building engineer or attachment manufacturer for screw requirements.

ROOF ATTACHMENT WITH STRUT 17

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

ATTACHMENT WITH STRUT
Strut runs North/South under PV modules, near the center of the module, placed as indicated on array layout. Strut does not connect to EcoFoot2 Bases. Strut is attached to Roof Attachment, low or south edge of PV modules and Wind Deflector.

STEP 1: Position Strut under and near center of PV module in line with center slots on Wind Deflector. Position Strut throughout the array as shown on array design layout.

STEP 2: Determine which side of Strut you will install Roof Attachment.
Mid supports will be installed slightly off center and opposite of roof attachment to allow room for roof attachment hardware.

ROOF ATTACHMENT WITH STRUT 18

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STEP 3: Place Roof Attachment within 1.5″- 4″ from attachment-side edge of Strut, illustrated by Red
line.

STEP 4:
Slide Strut away and install Roof Attachment per manufacturer’s instructions.

STEP 5: Slide Strut back into position over Roof Attachment.

STEP 6: Assemble Clamp components as shown. Attach South row Module Clamps onto Strut and Modules.

STEP 7: Place Strut Nut into Strut channel.

STEP 8: Slide Clamp to Module Frame. Torque Bolt to 14 ft-lbs.

ROOF ATTACHMENT WITH STRUT 19

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STEP 9:
Using Strut Strap Components shown, attach North row Strut Strap to Wind Deflector and Strut.

STEP 10: Place Bolt behind Wind Deflector and bottom of Strut Strap in Strut channel.
Torque Bolt to 14 ft-lbs.

STEP 11: Attach L-Bracket 1 to Roof Attachment. Place long side of L-Bracket on Roof Attachment and secure L-Bracket 1 to Roof Attachment with Bolt. Torque Bolt to 14 ft-lbs.

STEP 12: Attach L-Bracket 2 to L-Bracket 1 by butting flat sides and bolting together. Use included L-Bracket Bolt to secure two L-Feet together. Torque Bolt to 14 ft-lbs.

NOTE: If you are using OMG Roof Attachment, see guidelines on the next page for correct installation of L-Bracket 2.

ROOF ATTACHMENT WITH STRUT 20

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

NOTE:
When using U-Anchor Roof Attachment, the short side of L-Bracket 2 butts to the short side of L-Bracket 1, as shown in step 13.
If you are using OMG Roof Attachment, see guidelines below for correct installation of L-Bracket 2.

STEP 13: Attach L-Bracket 2 to Strut. Place L-Bracket 2 on Strut and secure with L-Bracket Bolt.
INSTALLATION STEPS FOR OMG ROOF ATTACHMENT

STEP 14: Repeat steps 9 and 10 as needed to attach North row Wind Deflector to Strut.

STEP 15: Attach L-Bracket 1 to Roof Attachment. Place short side of L-Bracket on Roof Attachment and secure L-Bracket 1 to Roof Attachment with Bolt.

STEP 16: Attach L-Bracket 2 to L-Bracket 1 by butting flat sides and bolting together. Use included L-Bracket
Bolt to secure two L-Feet together.

STEP 17: Attach L-Bracket 2 to Strut. Place L-Bracket 2 on Strut and secure with L-Bracket Bolt. Torque all bolts to 14 ft-lbs

ROOF ATTACHMENT WITH STRUT 21

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

STRUT INSTALLATION NOTES
1. As per the array layout plan, Strut attachment locations may cover one, two or more modules per attachment location. Strut length and number of connected modules are specified on the array layout. Strut may need to be cut to meet the attachment requirements in the project’s Layout Plan or engineering report.
2. Note that EcoFoot5D ballast trays will not be installed where strut is located.

FIELD SUPPORT CONTACT INFORMATION
UNIRAC proudly offers dedicated engineering expertise and superior customer support. For questions about the installation procedures or a specific application, please visit our website: www.unirac.com.

GROUNDING AND BONDING PATHS 22

10-DEGREE BALLASTED RACKING SYSTEM

INSTALLATION GUIDE PAGE

The EcoFoot2+ TM system has been tested by SolarPTL and conforms to UL 2703 for Grounding and Bonding when installed per the published installation instructions.
EcoFoot2+ carries module-to-module ground bond through the Wind Deflector, Item E listed in the “System Components Section” in this document. Each row of modules/wind deflectors in an array of up to 400 modules must be grounded per the NEC and ANSI/NFPA 70 either through the designated ground hole in the Wind Deflector, or by drilling a ¼” ground hole into the Wind Deflector a minimum of ½” from any edge. One Ground Lug is required for every 400 modules connected within an array.
Unirac recommends using #6 copper ground wire in conjunction with WEEB grounding devices such as the WEEB-LUG-6.7 or WEEB DSK516. Lugs are a single use component.
Other grounding methods must be reviewed and approved by a licensed master Electrician or Electrical Engineer and Authority Having Jurisdiction (AHJ).

Ground Hole with Lug Installed

Ground Lug

Ground Lug JUMPER Fault Current Ground Path
Wind Deflectors carry module-to-module East/West ground bond. Bonding jumpers carry row-to-row North/South ground bond.

10-DEGREE BALLASTED RACKING SYSTEM

CODE COMPLIANCE NOTES 23
SYSTEM CERTIFICATION PAGE

UL2703 System Label: The label shown below is stamped into to the Wind Deflector (identified as component “E” in the installation guide).

The Date Code A B C Y Z Z shown above will appear on production parts, defined as follows: · A B C will be used to identify the source factory · Y shall be the quarter of manufacture · ZZ shall be the last two digits of the year of manufacture

10-DEGREE BALLASTED RACKING SYSTEM

MECHANICAL LOAD TEST 24
SYSTEM CERTIFICATION PAGE

The EcoFoot2+ TM 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 includes electrical grounding, electrical bonding, mechanical load and fire resistance testing.
In conducting these tests, specific modules are selected for their physical properties so that the certifications can be broadly applied. The following lists the specific modules that were tested and the applicability of those certifications to other modules that might come onto the market. PV modules may have a reduced mechanical load rating, independent of the EcoFoot2+ TM load rating. Please consult the PV module manufacturer’s installation guide for more information.
In addition 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 tests include functional system tests, and destructive load testing.
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 cover the following basic module parameters:
· Frame thicknesses greater than or equal to 1.0 mm. · Basic single and double wall frame profiles (some complex frame profiles could require further analysis to determine applicability). · Clear and dark anodized aluminum frames. · All installation configurations have achieved a minimum of 5psf design load in the downslope direction, tested with the Q Cells Q.PEAK DUO
XL-G11.3/BFG module listed in this table

Module Manufacturer Boviet Solar
Canadian Solar
ET Solar Hansol Heliene Hyundai

Model / Series
BVM6612 M CS6P-XXXM CS6X-XXXP CS6U-XXXM CS3W-MB-AG CS3U-MB-AG ET-M672XXXWW HSXXXTD-AN4 72M-XXX HiS-MXXXTI HiS-MXXXRI

Area [sq ft] 20.89 17.31 20.65 20.93 24.05 21.59 20.86 21.46 20.89 21.06 21.06

Design Load without Mid Supports Design Load down with Mid Sup-

[psf]

ports [psf]

11.8 up / 30 down 30 up / 30 down 15 up / 38 down 13.3 up / 25 down 13.87 up / 13.8 down 13.33 up / N/A down 15 up / 20 down 15 up / 20 down 15 up / 25 down 10.2 up / 30 down 15 up / 20 down

50 N/A 50 50 40.55 40 40 35 34 40 33.3

10-DEGREE BALLASTED RACKING SYSTEM

MECHANICAL LOAD TEST 25
SYSTEM CERTIFICATION PAGE

Module Manufacturer JA Solar Jinko LG Longi
Q Cells
REC ReneSola S-Energy Silfab SolarWorld Talesun

Model / Series
JAM72S10-XXX/MR JKMXXXP-60 JKMXXXP-72 LGXXXN2W-G4 LGXXXN2W-A5 LR6-72HPH-XXXM LR6-72HV-XXXM LR4-72-HBD-XXX
Q.PRO BFR-G4
Q.PLUS L-G4.2 Q.PEAK DUO L-G8.3 Q.PEAK DUO XL-G10.3 / BFG Q.PEAK DUO XL-G11.3/BFG RECXXXTP2 RECXXXTP2S 72 RECXXXTP2S 72 XV JCXXXM-24/Ab JCXXXM-24/Bb SNXXXP-15 SLGXXXM SLA-P XXX SIL-XXXNU
SW Poly Pro TP672M-XXX

Area [sq ft] 21.6 17.62 20.89 21.10
22.31
21.48 20.86 23.4 17.98 21.46 23.06 24.93 29.49 17.97 21.60 21.6 20.89 20.89 21.00
21.00
17.58 21.94 18.04 20.91

Design Load without Mid Supports Design Load down with Mid Sup-

[psf]

ports [psf]

16.7 up / 27.2 down 30 up / 30 down 15 up / 30 down 15 up / 35 down 15 up / 18.8 down 15 up / 20 down 15 up / 20 down 16.7 up / 20 down 15.1 up / 20 down 10.2 up / 30 down
17.16 up / 20.53 down 16.7 up / 16.7 down
14.13 up / 14.27 down 15 up / 26 down 15 up / 15.5 down 15 up / 25 down 15 up / 30 down 30 up / 30 down 10 up / 20 down
13.1 up / 13.9 down 13.3 up / 30 down 17.7 up / 27.2 down 30 up / 30 down 12 up / 20 down

51.3 N/A N/A N/A 30
30
40 43.9 55
33 46.88 43.5 41.63
50
20
34 N/A N/A 30
30
40 46.7 N/A 30

10-DEGREE BALLASTED RACKING SYSTEM

MECHANICAL LOAD TEST 26
SYSTEM CERTIFICATION PAGE

Module Manufacturer
Trina VSUN Yingli ZN Shine

Model / Series
TSM-XXX PA05.08 TSM-XXXDE14A(II) DE18M(II) VSUNXXX-72MH YGE 60 ZXM6-72

Area [sq ft] 17.64 20.93 25.94 21.38 17.58 21.4

Design Load without Mid Supports Design Load down with Mid Sup-

[psf]

ports [psf]

30 up / 30 down 15 up / 30 down 18.92 up / 19.01 down 13.33 up / 20 down 30 up / 30 down 13.33 up / 16.27 down

N/A 40 37.85 50 N/A 40

10-DEGREE BALLASTED RACKING SYSTEM

COMPATIBLE MODULES 27
SYSTEM CERTIFICATION PAGE

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 EcoFoot2+ TM system.

Manufacture

Module Model / Series

Manufacture

Module Model / Series

Manufacture

Module Model / Series

Aionrise BenQ Solar Boviet
Canadian Solar
ET Solar Hansol Hanwha Q-Cells
Heliene
Hyundai JA Solar Jinko

AION60G1, AION72G1
PMXxxP01
BVM661(0/2) P-xxx (BB), BVM661(0/2) M-xxx, BVM661(0/2) P -xxx, BVM661(0/2) M (BB)-xxx
CS1Y-MS, CS6K-xxx(M or P), CS6U-Xxx(M or P), CS6R-MS-HL, CS6X-xxx(M or P), CS6P-Xxx(M or P), CS6U-xxx(M or P) (1500V), CS3N MS, CS3W-PB-AG, CS3W-MB-AG, CS3UMB-AG, CS3U-MS-AG, CS3Y-MB-G, CS6W-MB-AG,
ET-(M or P)660xxx(WW or WB or BB)
HSxxxTD-AN4, HSxxxTD-AN3, HSxxxUD-AN1
Q.(PLUS or PEAK) (L or BFR)-G4.2 xxx, Q.(PLUS or PEAK) (L or BFR)-G4.1 xxx
72M-xxx (BLK), 72P-xxx, 60(P/M)-xxx, 60M-xxx (BLK) HOME PV HSPE-132HC-M10-SL- Monofacial, 144 HC M10 SL-Bifacial, 08HC M10 SL (All Black Module)
HiS-SxxxKI, HiS-(M or S)Xxx (RI or TI)
JAM72S10/MR, JAM72S09-xxx/PR, JAP72S09-xxx/SC, JAM72S10-xxx/PR, JAM72S01-xxx/PR, JAP72S01-xxx/SC
JKMxxxP-60/72, JKMxxxM-72HL-V

LG Electronics LONGi Panasonic
Q Cells

LGxxx(N or S)1C- (A5/G4), LGxxx(N or Q)1C-V5, LGxxx(N or Q)1K-V5, LGxxxNX(W or T)-V5, LGxxx(A, M, N or Q)1C-A6, LGxxx(M, N or Q)1K-A6, LGxxxQAC-A6, LGxxxQAK-A6, LGxxx(N or S)2W-(A5, B3 or G4), LGxxxN1K-L5, LGxxx(N or Q)1C-N5, LGxxxQ1K-N5, LGxxxN2W-L5, LGxxxN2T-L5, LGxxxN1K-A5 LGxxxN2W-E6, LGxxxN2T-E6
LR6-72-xxxM, LR6-72HV-xxxM, LR6-72HPH-xxxM, LR4-72-HBD-Xxx, LR5-72HBD, LR5-72HPH, LR4-72HPH
EVPVxxx(K/PK/H)
Q.PRO BFR-G4/G4.3 Xxx,
Q.(PRO or PLUS) BFR-G4.1 xxx, Q.PEAK-G4.1 (MAX) xxx, Q.PEAK BLK G4.1 xxx,
Q.(PRO or PLUS) G4 xxx, Q.PEAK (BLK or BFR) G4.1/TAA xxx, Q.PLUS BFR G4.1/MAX xxx,
B.LINE (PRO or PLUS) BFR G4.1 xxx,
Q.PRO EC-G4.4 xxx, Q.PEAK DUO BLK- (G9(+) or G10(+)), Q.PEAK DUO L-(G5.1, G5.2, G6, G6.1, G6.2, G6.3,
G7.1, G7.2, G8, G8.1, G8.2 or G8.3), Q.PLUS DUO L-(G5.1or G5.2), Q.PLUS L G4.2, Q.PEAK DUO XL-G11.3/BFG Q.PEAK L (G4.2 or G4.5), Q.PEAK DUO-G10(+), Q.PEAK DUO XL-(G10.2, G10.3, G10.c or G10.d), Q.PEAK DUO XL-(G10.3 or G10.d)/BFG

REC Solar
ReneSola Risen Solar S-Energy Silfab
SolarWorld
Sonali SunPower Talesun Tesla
Trina
Vikram VSUN Yingli ZN Shine

RECxxx(TP, PE, TP4 or NP2 ) (BLK), RECxxxTP2 (BLK/BLK2), RECXxxTP2S 72, RECxxx(TP, PE, TP2 or NP ), RECxxxAA (72/Black/Pure)
JCxxxM -24(Ab or Bb),
RSM144-6-xxxBMDG
SNxxxP-15, SNxxx(M/P)-10, SNxxx(M/P)-10 (40T)
SLG-(P, M or X) xxx, SLA-(P, M or X) xxx, SSG-(P or M) xxx, SSA-(P or M) xxx, SIL-xxxNU
SW Poly Pro, SW Poly 2.5 Sunmodule Plus SW Mono, Sunmodule Protect SW Mono
SS-M-360 to 390 & 440 to 460 Series, SS-M-430 to 460 BiFacial Series
A440-COM-MLSD
(+/- Hipro Mxxx+ or PID ZERO) TP672(M or P), TD6I72M, TD7G72M
TxxxH, TxxxS
TSM-xxx PA05.08, TSM-XxxDD14A(II), TSM-xxxDE14A(II), TSM-XxxPE14A,TSMxxxPD14, TSM-DE15H(II), TSM-DE15M(II), DE18M(II), DEG15MC.20(II), DEG15HC.20(II)
PARADEA VSMDH.72.AAA.05, PREXOS VSMDHT.60.AAA.05, VSMDHT.72.AAA.05
VSUNxxx-60M, VSUNxxx-(72MH or 72PH)
YLxxxP-29b, YLxxxC-30b,
ZXP6-72, ZXM6-72, ZXM6-60, ZXM6-NHLDD144

· Unless otherwise noted, all modules listed above include all wattages and specific models within that series. Variable wattages are represented as “xxx” · Items in parenthesis 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 model ID · 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 · Please see EcoFoot2+TM information at unirac.com to ensure the exact solar module selected is approved for use with EcoFoot2+TM · Listed models can be used to achieve a Class A fire system rating, for low slope applications, when modules fire typed 1, 2, 3 with a metal frame, 19, 22, 25, and modules typed 29 or 30 when the encapsulation thickness meets the criteria for type 3 modules.

References

• HOME - Unirac
• HOME - Unirac

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>