COOK TRE User Manual

TRE

Extruded Relief or Intake Ventilators

INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

This publication contains the installation instruc­tions for standard units of the TRE - Extruded Relief or
Intake Ventilator. Carefully read this publication prior
to any installation procedure.

Loren Cook catalog, Gravity, provides additional informa-
tion 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 and instructions on special equipment,
contact Loren Cook Company at 417/869-6474.

Receiving and Inspection

Immediately upon receipt of a TRE 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.

Handling

Lift the unit by the base or shipping carton. Never lift by

the tiers.

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.

Filters

Filter inspection and cleaning intervals can vary from
once a week to twice per year depending on contaminant
present and acceptable pressure drops across the filter.
Under most conditions filters may be cleaned with hot water
and a mild soap solution (such as dish washing liquid) or
steam. Some caustic cleaners will damage the filter. If in
doubt, please consult the factory for a compatibility list.

High pressure spray washers should be limited to
2,000psi operating pressure. Every attempt should be
made to remove the contaminants from the filter in a “back­wash” flow (note airflow arrow on the filter frame). Once the
filter is dry, it may be returned to the appropriate filter racks
in the same orientation (airflow direction) as they were
removed.

Maintenance

Establish a definite schedule per the manufacturers rec­ommendation for inspecting any accessory filters or damper
units that may have been installed with the ventilator.

Inspect the ventilator yearly for any debris that may
obstruct airflow. Check exterior surfaces for dust and
grease. To assure proper operation, remove any dust and
grease from the TRE surfaces.

The TRE top cap may be removed for roof top access to
the throat of the ventilator and access to the optional filters.
Filters may be removed for cleaning and maintenance by
sliding them up and out of the unit. Be sure to reinstall all top
cap fasteners upon reassembly.

Installation

Damper and Curb Installation

Curb dimensions are calculated by adding 4” to the throat

width and throat length.

The optional backdraft damper is 1-1/2” larger than the
throat length and throat width. The damper is to be mounted
in the throat of the TRE.

Optional filters are shipped installed in the unit from the
factory.

TRE

TRE Knockdown Installation Instructions

Hood is bolted at
corners and braces

Top, Bottom, & Cross Braces
are bolted together

5/16" Nut & Bolt
(Between each tier)

Topcaps can have multiple
sections depending on unit length
(some may be left assembled)

Bolt Hood
together at
each section

Braces on Tiers
are Welded on

Tier Extrusion

TRE Parts List

4

3

"Detail" T op View

1/8" Aluminum Plate
Note: Center tier dividers
can vary in qty. depending
on size of unit, tier material
comes in 192" long sections.

1

Tier Extrusion

5/16" Nut & Bolt
(between each tier)

1/8" Aluminum Plate

Part

No.

1 Top cap
2Base
3 Corner Post

2

4Tier

Description

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 pla cing 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.

Corporate Offices: 2015 E. Dale Street Springfield, MO 65803 417.869.6474

lorencook.com

2

TRE IOM -January 1999