UNIRAC EcoFoot2+ - Thermal, Seismic, and Re-inspection; UL2703 Qualification and Fire Rating

INSTALLATION GUIDE
PAGE
6
10-DEGREE BALLASTED RACKING SYSTEM
GENERAL APPLICATION NOTES
Thermal and Seismic Design Requirements: EcoFoot2+ is a exible 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 specics 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 compati-
ble modules may be found in “EcoFoot2+ Install Guide Compatible Modules Page” on our website: www.unirac.com
UL2703 Qualication: In cases where UL 2703 certication is required, the EcoFoot2+ system conforms to the UL2703 Standard for grounding and bonding and re
ratings. The EcoFoot2+ system may be used to ground and/or mount a PV module complying with UL1703 only when the specic module has been evaluated for
grounding and /or mounting in compliance with the included instructions.
EcoFoot2+ system is to be installed over a re resistant roof covering rated for the application. EcoFoot2+ Racking maintains a Class A re 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 re type. Contact Unirac
with any questions about re 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.