COOK Economizer Fan - Manual

through the roof curb until the assembly’s outer flange
rests on the top of the roof curb. The curb should be
level to allow the cabinet to hang free.
c. Assemble the hood to hood base. Refer to Hood
Assembly instructions on page 2.
d. Lower the hood assembly on to the roof curb and
secure it and the cabinet assembly to the roof curb with
anchor bolts or lag screws as required.
e. Pre-wire the service switch on the roof base, if
equipped.
f. Install the hood assembly filters, if required. Refer to
Filtered Units Only section on page 2.
g. Install the outlet diffuser on the lower end of the cabinet
assembly, if equipped. Place the diffuser over the bot-
tom of the cabinet assembly. Secure the diffuser to the
cabinet with number 12 sheet metal screws installed
through the flange, spaced at 6 inch intervals around
the perimeter.
continued
Personal Safety
Disconnect switches are recommended. Place
the disconnect switch near the fan in order that
the power can be swiftly cut off in case of an
emergency, and in order that maintenance per-
sonnel are provided complete control of the
power source.
This publication contains the installation, operation
and maintenance procedures for standard units of the
Economizer Fan-Economizer Fans with Mix, Recircu-
late, Supply and Exhaust Modes
. Carefully read this
publication prior to installation.
Loren Cook catalog, Economizer Fan , provides additional
information describing the equipment, fan performance,
available accessories and specification data.
For additional safety information, refer to AMCA publica-
tion 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 Literature Department by phoning
417/869-6474, extension 166; by FAX at 417/832-9431; or
by e-mail at [email protected].
For information and instructions on special equipment,
contact Loren Cook Company at (417) 869-6474.
Receiving and Inspection
Carefully inspect the fan and accessories for any damage
and shortage immediately upon receipt of the fan.
The control panel, if ordered, is shipped inside of the
roof base. It is not counted as a separate part.
• Turn the propeller by hand to ensure it turns freely and
does not bind.
• Check the dampers for free operation of all moving
parts.
• Record on the Delivery Receipt any visible sign of dam-
age.
Handling
Lifting bars are located on the top of the cabinet assem-
bly. They should be used to lift the unit and also to lower the
unit on to the curb. The hood assembly should be lifted by
the shipping crate or the base assembly.
Storage
If the unit is stored for any length of time prior to installa-
tion, store it in its original shipping crate and protect it from
dust, debris and the weather.
Installation
a. Ensure there is a minimum 3 inch clearance between
the interior of the building and the unit’s side dampers.
b. Attach lifting straps to the lifting bars at the top of the
cabinet assembly. Lift the assembly and then lower it
WARNING
This unit has rotating parts. Safety precautions
should be exercised at all times during installation,
operation, and maintenance.
ALWAYS disconnect power prior to working on fan.
Economizer Fan
Economizer Fans
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Economizer