COOK LC - Manual

Low Profile Roof Exhausters
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Storage
If the fan 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
To prevent damage to the fan during shipping, motors 5
HP and larger, and extremely heavy motors (cast iron or
severe duty) are shipped loose and must be field mounted
by bolting the motor on the motor mounting plate in the
existing mounting slots.
Dampers
If your fan is supplied with dampers, follow the directions
below. If your fan does not include dampers, proceed to
Belt and Pulley Installation.
a. Place the damper inside the curb. Ensure the damper
will open freely for the correct direction of the airflow.
b. Secure to curb at the damper shelf.
c. Drill a hole in the curb shelf for conduit needed for
motor wiring.
d. Operate the dampers manually to ensure the blades
move freely. Dampers should be released from full
open position to check for proper closing.
e. Install fan over curb with the conduit location in line
with the conduit hole in the curb.
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.
LC
This publication contains the installation, operation and
maintenance procedures for standard units of the “LC”
(HLC-D, HLC-B, TLC-D & TLC-B) Low Profile Roof
Exhausters.
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook catalog LC provides additional information
describing the equipment, fan 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, exten-
sion 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.
• Turn the wheel by hand to ensure it turns freely and
does not bind.
• Check dampers (if included) for free operation of all
moving parts.
• Record on the Delivery Receipt any visible sign of
damage.
Handling
Lift the fan by the base or by the shipping carton.
NOTICE! Never lift by the shaft, motor or housing.
Rotating Parts & Electrical Shock Hazard:
Disconnect electric power before working on unit.
Follow proper lockout / tagout procedures to ensure
the unit cannot be energized while being installed or
serviced.
A disconnect switch should be placed near the fan in
order that the power can be swiftly cut off, in case of
an emergency and in order that maintenance
personnel are provided complete control of the power
source.
Grounding is required. All field-installed wiring must
be completed by qualified personnel. All field-
installed wiring must comply with National Electric
Code (NFPA 70) and all applicable local codes.
Failure to follow these instructions could result in
death or serious injury.
HLC