COOK LSUG User Manual
PR / TR / LSUG
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
This publication contains the installation instructions for
standard units of the PR / TR / LSUG - Relief or Intake
Ventilator. Carefully read this publication prior to any
installation procedure.
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook Company’s Gravity Catalog provides
additional information describing the equipment, unit
performance, available accessories, and specification data.
For additional safety information, refer to AMCA
publication 410-96, Safety Practices for Users and
Installers of Industrial and Commercial Fans.
All of the publications listed above can be obtained from
Loren Cook Company by phoning 417/869-6474, extension
166; by FAX at 417/832-9431; or by e-mail at
info@lorencook.com.
For information on special equipment, contact Loren
Cook Company Customer Service Department at
(417)869-6474.
Receiving and Inspection
Immediately upon receipt of a PR / TR / LSUG unit,
carefully inspect it for damage and shortage.
• Check dampers (if supplied) for free operation of all
moving parts.
• Record on the Delivery Receipt any visible sign of
damage.
Relief or Intake Ventilators
The attachment of roof mounted fans to the roof curb
as well as the attachment of roof curbs to the building
structure must exceed the structural requirements
based on the environmental loading derived from the
applicable building code for the site. The local code
official may require variations from the recognized
code based on local data. The licensed engineer of
record will be responsible for prescribing the correct
attachment based on construction materials, code
requirements and environmental effects specific to
the installation.
Failure to follow these instructions could result in
death or serious injury.
Unit Installation
Secure ventilator to curb using lag screws, anchor bolts, or
suitable fasteners.
(Parts list on back)
Handling
Lift the PR / TR / LSUG units by the base or shipping
carton. The LSUG may be lifted by the lifting lug, as
indicated on the parts list. NOTICE! Never lift by the top
caps or windband.
Storage
If the unit is stored for any length of time prior to
installation, store it in its original shipping crate and protect
it from dust, debris and the weather.
Installation
Damper Installation
If your unit is supplied with dampers, follow the directions
below. If your unit does not include dampers, proceed to unit
installation.
When dampers are supplied:
a) Place dampers inside the curb, ensuring that the
damper will open freely in the correct direction of
airflow.
b) Secure to curb at damper tray.
c) When motorized damper kits are supplied, follow
installation instructions provided with kit. Drill hole in
curb shelf for wiring (if needed).
PR
TR
LSUG
1
PR Parts List
4
TR Parts List
5
1
2
3
1
2
3
4
Part
No.
1 Topcap Topcap
2 Post (4) Post (8)
3 Base Base
4 Inlet Inlet
Not Shown Birdscreen (optional)
Part
No.
1 Topcap Topcap
2 Open Tiered Topcap Open Tiered Topcap
3 Post (8) Post (16)
4 Base Base
5 Inlet Inlet
Not Shown Birdscreen (optional)
Sizes 8 - 30 Sizes 36 - 48
Sizes 8-30 Sizes 36 - 48
Description
Description
LSUG Parts List
1
9
10
8
7
6
Limited Warranty
Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein. For a period of five (5)
years after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be paid by you. This warranty is granted only
to the original purchaser placing the fan in service. This warranty is void if the fan or any part thereof has been altered or modified from its original design or has been abused,
misused, damaged or is in worn condition or if the fan has been used other than for the uses described in the company manual. This warranty does not cover defects resulting
from normal wear and tear. To make a warranty claim, notify Loren Cook Company, General Offices, 2015 East Dale Street, Springfield, Missouri 65803-4637, explaining in
writing, in detail, your complaint and referring to the specific model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be
notified, within thirty (30) days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled. If you are entitled to warranty relief, a warranty
adjustment will be completed within sixty (60) business days of the receipt of your written complaint by Loren Cook Company. This warranty gives only the original purchaser
placing the fan in service specifically the right. You may have other legal rights which vary from state to state.
3
2
4
5
Part
No.
1
2 Damper Stop Channel Damper Stop Channel
3 Damper Bumpers (2) Damper Bumpers (2)
4 Windband Windband
5 Base Weldment Base Weldment
6 Rain Gutter Rain Gutter
7 Damper Door (2) Damper Doors (2)
8 Damper HInges (4) Damper HInges (8)
9 Damper Pivot Rod Damper Pivot Rod
10
Size 20-36 Size 42-60
Damper Stop Brackets /
Lifting Lugs (2)
Damper Pivot
Brackets (2)
Description
Damper Stop Brackets /
Lifting Lugs (2)
Damper Pivot
Brackets (2)
Corporate Offices: 2015 E. Dale Street Springfield, MO 65803 417.869.6474
www.lorencook.com
2
PR / TR / LSUG IOM - Feb 2013
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