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UNIRAC EcoFoot5DTM, Installation Manual

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UNIRAC EcoFoot5DTM Installation Manual Download Page 4

INSTALLATION GUIDE

PAGE

HIGH DENSITY 5-DEGREE

BALLAST RACKING SYSTEM

1

INTRODUCTION

INTRODUCTION

EcoFoot5DTM is a 5-degree ballasted racking system designed to fi t more modules on a roof, maximizing power density. The modular de-

sign is built on the proven, industry-preferred, beautifully simple and fast-to-install modular technology of the EcoFoot platform and sister 

product, E. 

EcoFoot5D consists of fi ve simple components. Installation is accomplished in six simple steps. Much of the installation is tool-less.

EcoFoot5D Bases self-align, requiring only two chalk lines. The PV module installation automatically moves the Bases into perfect place-

ment. Inter-row ballast placement and easy-reach wire management provide superior accessibility during and after installation.

Stackable Bases enable the transport of up to 290kW of Bases on 1 standard pallet, streamlining logistics. The combined effect of simplic-

ity, maximum density, and minimized shipping, storage and transporting costs results in an ultra cost-effective racking solution. 

FIELD SUPPORT CONTACT INFORMATION

Unirac proudly offers dedicated engineering expertise and superior customer support. For questions about the installation procedures or a 

specifi c application, please visit www.unirac.com.

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® EcoFoot5D™ and other products are appropriate for the specifi c installation and are designed for the installa-

tion 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 fl ashing if the system is being installed using at-

tachments. 

•  Ensuring safe installation of all electrical aspects of the entire system.

Summary of Contents for EcoFoot5DTM

Page 1: ...nstallation Manual 2020 by Unirac Inc All rights reserved UNIRAC welcomes input concerning the accuracy and user friendliness of this publication Please write to publications unirac com PUB2020OCT31 HIGH DENSITY 5 DEGREE BALLAST RACKING SYSTEM ...

Page 2: ...IGH DENSITY 5 DEGREE BALLAST RACKING SYSTEM TABLE OF CONTENTS INTRODUCTION 1 2 WARNINGS AND SAFETY 3 GENERAL APPLICATION NOTES 4 5 SYSTEM COMPONENTS 6 7 SYSTEM INSTALLATION STEPS 8 12 STEPPED ARRAY INSTALLATION 13 14 MODULE REMOVAL 15 ROOF ATTACHMENT WITH STRUT 16 21 GROUNDING AND BONDING 22 CODE COMPLIANCE NOTES 23 MECHANICAL LOAD TEST 24 25 COMPATIBLE MODULES 26 ...

Page 3: ...LATION GUIDE HIGH DENSITY 5 DEGREE BALLAST RACKING SYSTEM Legal Notices 2017 Unirac Inc Unirac and EcoFoot2 are registered trademarks of Unirac Inc EcoFoot5D is a trademark of Unirac Inc registration pending ...

Page 4: ...mplic ity maximum density and minimized shipping storage and transporting costs results in an ultra cost effective racking solution 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 www unirac com INSTALLER RESPONSIBILITY The installer is solely ...

Page 5: ...tent 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 sh...

Page 6: ...Foot5D WARNING Please note the following warnings when installing EcoFooot5D EcoFoot5D components fit together tightly and could cause pinch injuries EcoFoot5D components may be hot to the touch if left in the sun Please follow the safety requirements below when installing EcoFoot5D Always keep children and unauthorized people away from work areas Always wear required OSHA approved Personal Protect...

Page 7: ...he 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 EcoFoot5D installation Bonding elements are incorporat...

Page 8: ...mplying with UL1703 only when the specific module has been evaluated for grounding and or mounting in compliance with the included instructions EcoFoot5D system is to be installed over a fire resistant roof covering rated for the application EcoFoot5D racking maintains a Class A fire rating when installed in landscape orientation according to the installation instructions on a low slope roof Class A ...

Page 9: ...Upper Universal Clamp Lower Wind Deflector Mid Support Lower Universal Clamp Upper Ballast Tray 5 16 Thread Forming Screw 1 4 7 2 5 8 3 6 9 Universal Clamp Upper Ballast Tray 3 6 Hardware Required All required hardware is included Tools Required Deep Socket Calibrated Torque Wrench Torque Settings 14 ft lbs on all 5 16 Fasteners ...

Page 10: ... 1 EcoFoot5D Base ES10490 2 Universal Clamp Lower ES10459 3 Universal Clamp Upper ES10458 4 Clevis Pins ES10476 CP 5 Wind Deflector 70 ES10494 82 ES10496 92 25 ES11026 6 Ballast Tray 71 ES10486 83 ES10488 93 25 ES11025 7 Mid Support Upper ES10481 CP 8 Mid Support Lower ES10482 CP 9 5 16 Thread Forming Screw ES10456 CP ...

Page 11: ... edges of the EcoFoot5D Bases per project drawing Start from the north or south edge Ensure chalk lines are square Place EcoFoot5D Bases in approximate position throughout the array Installation Tips Only install Clamps where modules will rest See Step 3 for correct placement and orientation of Clamps Installation Tips As you build the array panels will space the Bases Roughly place a few rows of ...

Page 12: ... cell lines Slide the Upper and Lower Mid Support slots onto module frame Press Upper down to sit flat on the roof Press Lower down and snap onto tongue of upper Installation Tips After Step 3 wiring can be routed and secured Standard wire clips or cable ties not included can be inserted into slots along Base edge Nut Module Base Nut Upper Lower Mid Support Note Mid Support kits are used between ro...

Page 13: ... 14 ft lbs Place ballast not included in a single layer evenly dispersed along the length of Ballast Trays Apply ballast per the ballast plan specified in the PE Certified Ballast Plan Sheet S 1 0 Step 6 Install Wind Deflector Place Wind Deflectors into slot on EcoFoot5D Base and attach to Rocker using Nut provided Torque Nut to 14 ft lbs using a deep socket Application of anti seize on threaded post ...

Page 14: ...cked under the north edge of EcoFoot5D arrays as shown in the diagram Tilt angle of North row will be 2 degrees higher than rest of array Additional EcoFoot2 Bases may be added to the center of the module frame if required for high snow loads or to hold additional ballast blocks METHOD A EcoFoot2 BASES AND WIND DEFLECTORS METHODS OF NORTH ROW INSTALLATION METHOD A EcoFoot2 BASE TUCKED ON NORTH EDG...

Page 15: ... of the module frame if required for high snow loads The additional center Base does not need to be attached to the Strut Method B EcoFoot5D Bases Attached METHOD B EcoFoot5D BASE TUCKED ON NORTH EDGE DETAIL A Roof Attachment DETAIL B Tucked EcoFoot5D Base on North Edge NOTE Some EcoFoot5D arrays are designed to be fully attached with strut running North South For fully attached systems Mid suppor...

Page 16: ...V module are positioned differently than Clamps securing two PV modules Follow the Clamp positioning instructions below INSTALLATION OF CLAMPS FOR STEPPED ARRAY Example of one configuration of Stepped Array At array edge South Row has one less PV module than North Row creating a stepped edge Alternatively Stepped Arrays may have the single PV module on the North Row Stepped Array Edge Clamp secures...

Page 17: ...ning dot at outer edge of Clamp This will engage 1 of Clamp with module frame Align Base as needed to position Clamp Base will be slightly out of par allel Torque Nut to 14 ft lbs using a 1 2 deep socket Position Clamp in typical two module clamping position and torque Nut Torque the nut to 14 ft lbs 1 Positioning Dots Clamp Securing Single PV Module Clamp Securing Two PV Modules STEPPED ARRAY INS...

Page 18: ...me 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 CAUTION Module removal may disrupt the bonding path and could introduce the risk of electric shock See Grounding and Bondin...

Page 19: ...Hardware Kit P N ES10843 EcoFoot Strut to Module Hardware Kit P N ES10844 Strut 1 5 8 x 1 5 8 Roof Attachment Length specified on array layout Specified based on roof type Note Roof Attachments require roofing screws available by others Check with building engineer or attachment manufacturer for screw requirements 1 1 2 Deep Socket 2 9 16 Deep Socket 3 1 2 Box End Wrench 4 Calibrated Torque Wrench 5 ...

Page 20: ...der and near center of PV module in line with center slots on Wind Deflector Posi tion Strut throughout the array as shown on array design layout STEP 1 For EcoFoot5D drill a 3 8 through hole in the wind deflector for strut strap installation in step 10 The center of the hole to be located 5 8 above the bottom edge of the deflector STEP 3 Determine which side of Strut you will install Roof Attachment...

Page 21: ...le Clamp components as shown Attach South row Module Clamps onto Strut and Modules STEP 9 Slide Clamp to Module Frame Torque Bolt to 14 ft lbs STEP 8 Place Strut Nut into Strut channel STEP 6 Slide Strut back into position over Roof Attachment ROOF ATTACHMENT WITH STRUT STEP 4 Place Roof Attachment within 1 5 4 from attachment side edge of Strut illustrated by Red line ...

Page 22: ...Bracket 1 to Roof Attachment with Bolt Torque Bolt to 14 ft lbs STEP 13 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 STEP 11 Place Bolt behind Wind Deflector and bottom of Strut Strap in Strut channel Torque Bolt to 14 ft lbs ROOF ATTACHMENT WITH STRUT NOTE If you are using OMG Roof Att...

Page 23: ...d bolting together Use included L Bracket Bolt to secure two L Feet together STEP 18 Attach L Bracket 2 to Strut Place L Bracket 2 on Strut and secure with L Bracket Bolt STEP 15 Repeat steps 9 and 10 as needed to attach North row Wind Deflector to Strut Torque all bolts to 14 ft lbs NOTE When using U Anchor Roof Attachment the short side of L Bracket 2 butts to the short side of L Bracket 1 as sho...

Page 24: ...t 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 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 STRUT INSTALLA...

Page 25: ...ired 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 components 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 ...

Page 26: ...tamped into to the Wind Deflector identified as component 5 in the installation guide The Date Code X MM YYYY shown above will appear on production parts defined as follows X will be used to identify the source factory MM shall be the month of manufacture YYYY shall be the year of manufacture CODE COMPLIANCE NOTES X MM YYYY ...

Page 27: ...de functional system tests and destructive load testing MECHANICAL LOAD TEST Module Manufacturer Model Series Area sq ft Design Load psf Boviet Solar BVM6610 M 17 51 11 8 up 50 down BVM6612 M 20 89 11 8 up 42 9 down Canadian Solar CS6P XXXM 17 31 15 1 up 30 down CS6X XXXP 20 65 13 6 up 43 4 down CS6U XXXM 20 93 13 3 up 42 8 down CS3W MB AG 24 05 13 87 up 27 17 down CS3U MB AG 21 59 13 33 up 38 85 ...

Page 28: ... up 27 45 down Q PEAK DUO XL G10 3 BFG 24 93 16 7 up 23 3 down Q PEAK DUO XL G11 3 BFG 29 49 14 4 up 26 93 down REC RECXXXTP2 17 97 15 up 49 8 down RECXXXTP2S 72 21 60 13 up 35 down RECXXXTP2S 72 XV 21 6 15 up 40 down ReneSola JCXXXM 24 Ab 20 89 13 4 up 30 down S Energy SNXXXP 15 21 00 10 up 30 down Silfab SLGXXXM 21 00 13 1 up 30 down SLA P XXX 17 58 13 3 up 40 down SIL XXXNU 21 94 17 7 up 31 4 d...

Page 29: ...s LGxxx N S 1C A5 G4 LGxxx N Q 1C V5 LGxxx N Q 1K V5 LGxxxNX W T V5 LGxxx A M N Q 1C A6 LGxxx M N Q 1K A6 LGxxxQAC A6 LGxxxQAK A6 LGxxx N S 2W A5 B3 G4 LGxxxN1K L5 LGxxx N Q 1C N5 LGxxxQ1K N5 LGxxxN2W L5 LGxxxN2T L5 LGxxxN1K A5 LGxxxN2W E6 LGxxxN2T E6 LONGi LR6 72 xxxM LR6 72HV xxxM LR6 72HPH xxxM LR4 72 HBD xxx LR5 72HBD Panasonic EVPVxxx K PK H Q Cells Q PRO BFR G4 G4 3 xxx Q PRO or PLUS BFR G4 ...

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