UNIRAC PV PoleSides 4000 Series Assembly instructions

Series 4000 Side-of-Pole PV Module Rack
(Formerly U-05)
Installation Sheet 406.2
© 2004 by UniRac, Inc.
All rights reserved.
Pub 040623-3ii
June 2004
UniRac welcomes corrections, clarifications, or other input concerning
this manual. Please write to [email protected].
Thank you for purchasing a UniRac. Please review this manual completely
before proceeding.
The installer is solely responsible for:
• Complying with all applicable local or national building codes,
including any that may supercede this manual;
• Ensuring that UniRac and other products are appropriate for the
particular installations and are designed for the installation envi-
ronment;
• Using only UniRac parts and installer-supplied parts as specified by
UniRac (substitution of parts will void the warranty);
• Ensuring safe installation of all electrical aspects of the PV array.
Parts List
Part Qty.
Channel 1
Bracket, left-hand 1
Bracket, right-hand 1
Rail 2
Mounting pole guidelines
The installer is solely responsible for use of the information
below. These are general guidelines for normal installations.
The following variances can affect your installation:
• The required diameter and depth of the hole are
dependent on soil type, which varies by locale. An
installation in loose, sandy soil will require larger,
deeper holes and, therefore, more concrete than an
installation in soil of average density.
• The depth and width of the hole should also be in-
creased in areas subject to winds in excess of 90 mph,
particularly if the location of the mounting pole is
open and unprotected.
• Poles taller than 6 feet above ground require that the
depth of the hole be increased.
If in doubt, consult a professional civil engineer who is familiar
with local soil conditions and wind load requirements.
1. Dig a hole 8 to 12 inches in diameter and 36 to 40
inches deep. Fill the bottom with 4 inches of gravel.
2. Stand the pipe in the hole. Brace the pole so that it
is plumb. Pour concrete around the pipe, filling the
hole to ground level. Add an inch or two of extra
concrete above the hole. Use a trowel to slope the
concrete around the pole.
3. Allow the concrete to set up for at least 24 hours
before installing your UniRac.
Wrench Recommended
Part Qty. size torque (ft-lbs)
Hex-head bolt, ¼˝ 4 7
/16˝15
Hex-head bolt, 5 /16˝8 ½˝ 20
U-bolt, 3
/
8˝1
Flange nut, ¼˝ 4 7
/16˝15
Flange nut, 5
/16˝8 ½˝ 20
Flange nut, 3
/
8˝2 9/16˝30
Before assembly
This rack is intended for side mounting on a 2-inch Schedule 40 or Schedule
80 steel pole (2 3 /8˝O.D.), which is not included with the rack. UniRac supplies
hardware that fits a 2-inch pole. U-bolts for poles up to 4 inches are available at
extra cost.
Use the Parts List to verify that all parts are present.
If desired, excess rail length can be cut off. Cut between rail slots—never
through a slot.
Caution
Stainless steel hardware can seize up, a process
called galling.To significantly reduce the likelihood
of galling, apply a small drop of anti-seize lubricant
to the threads of all bolts before installation.
Anti-seize lubricants are readily available in auto
parts and hardware stores. In their absence, any
lubricant will reduce chances of galling.

Installation Sheet 406.2 Series 4000
UniRac, Inc.
www.unirac.com
3201 University Boulevard SE, Suite 110
Albuquerque NM 87106-5635 USA
505.242.6411
505.242.6412 Fax
Page
2
10 year limited Product Warranty
UniRac, Inc., warrants to the original purchaser
(“Purchaser”) of product(s) that it manufactures
(“Product”) at the original installation site that
the Product shall be free from defects in material
and workmanship for a period of ten (10) years,
from the earlier of 1) the date the installation
of the Product is completed, or 2) 30 days after
the purchase of the Product by the original
Purchaser.This Warranty does not cover damage
to the Product that occurs during its shipment,
storage, or installation.
This Warranty shall be VOID if installation of
the Product is not performed in accordance
with UniRac’s written installation instructions,
or if the Product has been modified, repaired, or
reworked in a manner not previously authorized
by UniRac IN WRITING, or if the Product is
installed in an environment for which it was
not designed. UniRac shall not be liable for
consequential, contingent or incidental damages
arising out of the use of the Product by the
Purchaser under any circumstances.
If within the specified Warranty period the
Product shall be reasonably proven to be
defective, then UniRac shall repair or replace
the defective Product, or any part thereof,
in UniRac’s sole discretion. Such repair or
replacement shall completely satisfy and
discharge all of UniRac’s liability with respect to
this limited Warranty. Under no circumstances
shall UniRac be liable for special, indirect or
consequential damages arising out of or related
to use by Purchaser of the Product.
Manufacturers of related items, such as PV
modules and flashings, may provide written
warranties of their own. UniRac’s limited
Warranty covers only its Product, and not any
related items.
Final adjustments
Once the rack/PV module assembly is at-
tached to the pole, raise and rotate the
rack/PV module assembly as needed.
Never let the assembly slide down
the pole. Torque the flange nuts on the
U-bolt to 30 foot-pounds and the channel
bracket bolts to 20 foot-pounds. Then
tilt the rails to bring the module to the
desired angle. Torque the bracket/rail
bolts to 18–20 foot-pounds.
Torque module bolts to 15 foot-pounds.
Assembly
The exploded view illustrates the rela-
tionship of the parts. Assembly order is
not critical. You may work either from
the pole outward, or assemble the rack,
PV module, and electrical components
before mounting the rack/PV module
assembly on the pole.
Loosely assemble all components.
The U-bolt and 3
/
8-inch flange nuts at-
tach the channel to the pole. Be certain
that the channel is centered on the pole,
then securely tighten the flange nuts.
Channel
Bracket
Pivot hole
Arc hole
Rail
Mounting pole
The 5
/
16 -inch hardware attaches the
brackets to the channel and the rails to
the brackets. Ensure that:
• brackets sit with the pivot hole
above the arc hole;
• rail slots face upward.
The ¼ -inch hardware attaches the PV
module to the rack. Ensure that you:
• center the module on the channel;
• place the module as close as pos-
sible to the pole end of the rails.