Customer Class File Number
Unirac
1411 Broadway NE
Albuquerque
New Mexico
United States
87102
5313-82
POWER SUPPLIES- PHOTOVOLTAICS - PV Racking and clamping systems-Certified to US Standards
266909

TO THE REQUIREMENTS OF UL 2703-1st Edition:

 

Models:

SM

-

SOLARMOUNT Flush-to-Roof is an extruded aluminum rail PV racking system that is installed parallel to the roof in landscape or portrait orientations.

ULA

-

Unirac Large Array is a ground mount system using the SolarMount (SM) platform for the bonding and grounding of PV modules.

Solarmount 

The system listed is designed to provide bonding/grounding, and mechanical stability for photovoltaic modules. The system is secured to the roof with the L-Foot components through the roofing material to building structure. Modules are secured to the racking system with stainless steel or aluminum mid clamps and Aluminum end clamps. The modules are bonded to the racking system with the stainless-steel bonding mid clamps with piercing points. The system is grounded with 10 AWG copper wire to bonding/grounding lugs. Fire ratings of Class A with Type 1, 2, 3 (with metallic frame), 4 (with trim), 5 (with trim), 10(with metallic frame), 19, 22, 25, 29, or 30 for steep slope. Tested at 5� interstitial gap which allows installation at any stand-off height.

The grounding of the system is intended to comply with the latest edition of the National Electrical Code, to include NEC 250 & 690. Local codes compliance is required, in addition to national codes. All grounding/bonding connections are to be torqued in accordance with the Installation Manual and the settings used during the certification testing for the current edition of the project report. 

The system may employ optimizers/micro-inverters and used for grounding when installed per installation instructions.

UL 2703 Mechanical Load ratings: 

Downward Design Load (lb/ft2)

113.5

Upward Design Load (lb/ft2)

50.7

Down-Slope Load (lb/ft2)

16.13

Module Area up to 27.12 sq ft

Downward Design Load (lb/ft2)

33.9

Upward Design Load (lb/ft2)

33.9

Down-Slope Load (lb/ft2)

16.5

                                         

Test Loads: 

Downward Load (lb/ft2)

170.20

Upward Load (lb/ft2)

76.07

Down-Slope Load (lb/ft2)

24.2

Module Area up to 27.12 sq ft

Downward Design Load (lb/ft2)

50.85

Upward Design Load (lb/ft2)

50.85

Down-Slope Load (lb/ft2)

24.75

 

 

Unirac Large Array  

ULA is a ground mount system using the SolarMount (SM) platform for the bonding and grounding of PV modules. ULA aluminum components merge with SM rails and installer-supplied steel pipe. The SM rail system is secured to the horizontal Pipe using the Rail Bracket components.  The Rear and Front cap secures the horizontal Pipe to the vertical Pipe. The Front cap is also used to secure the Cross brace. A Slider is attached to the vertical Pipe to secure the Cross brace. The SM rails, caps, slider, rail brackets, and cross braces materials are 6105-T5 aluminum extrusion. Fasteners materials are 304 stainless steel.  Horizontal and vertical pipe materials meet the minimum requirements of ASTM A53 for galvanized steel pipe in 2� and 3� diameter.   

The mechanical load ratings from the SM test data will be applied to the ULA model. 

Fire Testing is not applicable due to being a ground mount system. 

The grounding of the system is intended to comply with the latest edition of the National Electrical Code, to include NEC 250 & 690. Local codes compliance is required, in addition to national codes. All grounding/bonding connections are to be torqued in accordance with the Installation Manual and the settings used during the certification testing for the current edition of the project report

Models:

RM 5 South

-

South facing, low-slope, ballasted roof-mount PV racking system

RM DT

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East-West facing, low-slope, ballasted roof-mount PV racking system

RM 5 South and RM DT 

The systems listed are designed to provide bonding/grounding, and mechanical stability for photovoltaic modules. The system employs galvanized steel bays, ballasted with ASTM C1491 concrete blocks. Modules are secured to the racking system with stainless steel end and mid clamps. Where applicable, the system may employ fire skirts and/or wind deflectors made from 18 gauge G180 steel. The modules are bonded to the racking system with anodization-piercing clamps. The system is grounded with 10 AWG copper wire to bonding/grounding lugs. 

The system may employ bay-mounted or module mounted optimizers/micro-inverters. 

Both models are identical in terms of construction material, module clamps, bonding/grounding, and performance rating with the exception of the tilt angle and direction of the systems.

Mechanical ratings for both models: 

Downward Design Load (lb/ft2)

36

Upward Design Load (lb/ft2)

17.24

Down-Slope Load (lb/ft2)

5

 

Model

GFT

-

Ground Fixed Tilt is a Roll-Formed Steel and extruded aluminum rail PV racking system that is ground mounted in portrait orientation.

Ground Fixed Tilt 

The racking system listed is designed to provide bonding/grounding, and mechanical stability for photovoltaic modules. Racking system is secured to the ground with roll-formed steel piles. Modules are secured to the racking system with stainless steel or aluminum mid clamps and Aluminum end clamps. The modules are bonded to the racking system with bonding mid clamps with piercing points. The system is grounded with 10 AWG copper wire to bonding/grounding lugs.  

The grounding of the system is intended to comply with the latest edition of the National Electrical Code, to include NEC 250 & 690. Local codes compliance is required, in addition to national codes. All grounding/bonding connections are to be torqued in accordance with the Installation Manual and the settings used during the certification testing for the current edition of the project report. 

The mechanical load ratings from the SM test data will be applied to the GFT model. 

Fire Testing is not applicable due to being a ground mount system. 

Mechanical ratings: 

Downward Design Load (lb/ft2)

113.5

Upward Design Load (lb/ft2)

50.7

Down-Slope Load (lb/ft2)

16.13

 

Module Area up to 27.12 sq ft

Downward Design Load (lb/ft2)

50.85

Upward Design Load (lb/ft2)

50.85

Down-Slope Load (lb/ft2)

24.75

 

Model

NXT Horizon

-

Flush-to-Roof is an extruded aluminum rail PV racking system that is installed parallel to the roof in landscape or portrait orientations.

NXT Horizon

The system listed is designed to provide bonding/grounding, and mechanical stability for photovoltaic modules. The system is secured to the roof with the L-Foot components through the roofing material to building structure. Modules are secured to the racking system with aluminum mid clamps and aluminum end clamps. The modules are bonded to the racking system with bonding mid and end clamps with piercing points. Fire ratings of Class A with Type 1, 2, 3 (with metallic frame), 10(with metallic frame), 19, 22, 25, 29, or 30 for steep slope. Tested at 5" interstitial gap which allows installation at any stand-off height.

The grounding of the system is intended to comply with the latest edition of the National Electrical Code, to include NEC 250 & 690. Local codes compliance is required, in addition to national codes. All grounding/bonding connections are to be torqued in accordance with the Installation Manual and the settings used during the certification testing for the current edition of the project report.

UL 2703 Mechanical Load ratings for tested module area 21.86 sq ft:

Downward Design Load (lb/ft2)

113.7

Upward Design Load (lb/ft2)

50.7

Down-Slope Load (lb/ft2)

15.6

UL 2703 and TIL Mechanical Load ratings tested module area 27.76 sq ft:

Downward Design Load (lb/ft2)

50.1

Upward Design Load (lb/ft2)

22.2

Down-Slope Load (lb/ft2)

8.0

 

 

/df

Cert Rec - 266909-531382