UNIRAC SolarMount User Manual

© 2005 by UniRac, Inc.
All rights reserved.
Pub 050304-1ii
March 2005
UniRac welcomes input concerning the accuracy and user friendliness of
this publication. Please write to publications@unirac.com.
U.S. Des. Patent No. D496,248S. Other patents pending.
This manual details the
procedure for fl ush mounting
SolarMount to a pitched roof.
If your installation includes tilt
legs, see also the instructions
shipped with the leg kit.
Contents
Installer reponsibility . . . . . . 2
Laying out the
installation area . . . . . . . . . . . 2
Laying out L-feet . . . . . . . . . . 3
Installing L-feet . . . . . . . . . . . 3
Laying out standoffs . . . . . . . 4
Installing standoffs . . . . . . . . 4
Installing SolarMount
rails . . . . . . . . . . . . . . . . . . . . . 5
Installing the modules . . . . . 6
Wrenches and torque
Wrench Recommended
size torque (ft-lbs)
¼˝ hardware
7
⁄16˝ 15
3
⁄8˝ hardware
9
⁄16˝ 30
Figure 3. Exploded view of a low-profi le installation
mounted fl ush to the roof with L-feet.
Mid
clamp
End
clamp
T-bolt slot
for module
mounting
Footing
bolt slot
L-foot
Part quantities
SolarMount
®
Rail Sets
No. of
3
⁄8˝ footing
3
⁄8˝ fl ange
Rail length (inches) rails L-feet bolts nuts
48 – 106 2 4 4 4
120 – 180 2 6 6 6
192 – 216 2 8 8 8
226 – 288 (w/ splice) 2 10 10 10
300 – 336 (w/ splice) 2 12 12 12
348 – 408 (w/ splice) 2 14 14 14
420 – 432 (w/ splice) 2 16 16 16
Top Mounting Clamp Sets, Sizes A – F, G*, H†, and J
Modules End Mid ¼˝ module ¼˝x
5
⁄8˝ ¼˝ fl ange
per row clamps clamps T-bolts safety bolts nuts
2 4 2 6 2 8
3 4 4 8 2 10
4 4 6 10 2 12
5 4 8 12 2 14
6 4 10 14 2 16
7 4 12 16 2 18
8 4 14 18 2 20
9 4 16 20 2 22
10 4 18 22 2 24
11 4 20 24 2 26
12 4 22 26 2 28
* In size G, end clamps and mid clamps are identical, except that end clamps
include spacers. For illustration, see page 14.
† In size H, end clamps and mid clamps are identical. Hexhead bolts replace
T-bolts. For illustration, see page 14.
Stainless steel hardware can seize up, a
process called galling. To sig nifi cant ly re-
duce its like li hood, (1) apply lubricant to
bolts, preferably an anti-seize lu bri cant, available
at auto parts stores, (2) shade hardware prior to
installation, and (3) avoid spinning on nuts at high
speed. See Installation Supplement 910, Galling
and Its Prevention, at www.unirac.com.
Installation with Top Mounting Clamps
Installation Manual 201.1

UNIRAC SolarMount Specifications

General

Brand	UNIRAC
Model	SolarMount
Category	Inverter
Language	English

Summary

Installation with Top Mounting Clamps

Wrenches and torque

Details required wrenches and torque specifications for securing components during installation.

Installer responsibility

Outlines the installer's obligations regarding codes, product suitability, structural integrity, and safety.

Laying out the installation area

Guidance on positioning and measuring the roof area for module installation, considering rafter alignment.

Laying out L-feet

Instructions for marking L-foot lag bolt hole locations on rafters for flush mounting.

Installing L-feet

Steps for drilling, sealing, and securely fastening L-feet to roof rafters using lag bolts.

Laying out standoffs

Procedure for marking standoff lag bolt hole locations on underlayment over rafters for flashed installations.

Installing standoffs

Instructions for drilling, sealing, and fastening standoffs to rafters, including flashing.

Installing SolarMount rails

Guidance on preparing, aligning, and securely mounting SolarMount rails to footings or standoffs.

Installing the modules

Steps for prewiring, connecting, and securing PV modules to the installed rails using clamps and bolts.