9668 Heinrich Hertz Dr # D, San Diego, CA 92154
PH. 619-946-1224
This publication contains the installation, opera-
tion and maintenance instructions for standard
units of the CLS- Centrifugal Filtered Supply
Fans. Carefully read this publication prior to any
installation or maintenance procedure.
The Romlair catalog, CLS, provides additional
information describing the equipment, fan perfor-
mance, and available accessories.
For additional safety information, refer to AMCA
publication 410-96, Safety Practices for Users and
Installers of Industrial and Commercial Fans.
Receiving and Inspection
Inspect the fan and accessories for any damage and
shortage immediately upon receipt of the fan.
• Rotate the blower wheel by hand to ensure it turns
freely. If necessary, shift wheel position and re
tighten.
• Inspect dampers (dampers are optional), for good
operation.
Handling
Lifting Lugs are installed on the base to facilitate
lifting. Never lift by the louver tiers.
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.
Storage
Any time the fan is stored for a lenth of time prior to
installation, fill the bearings with grease or moisture-
inhibiting oil. The blower wheel should be rotated
every three to five days to keep a coating of grease
on all internal bearing parts.
The fan should be stored in its original crate and
protected from dust, debris and the weather.
Personal Safety
Disconnect switches are recommended. Place the
disconnect switch near the fan in order that the
power can be cut off quickly in case of an emergency,
and in order that maintenance personnel are provided
complete control of the power source.
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION AND MAINTENANCE INSTRUCTIONS
MODEL CLS
Centrifugal Filtered Supply Fans
Installation
Motor Installation
Most units come with the motors, belts, and drives
installed. No installation of motor and drives are
required.
Duct Installation
Good fan performance requires proper installation of
inlet and discharge ducts. The fan should conform to
the following guidelines.
Free Discharge
Free Discharge
A free discharge into the plenum should be avoided.
Free discharge into the plenum does not allow for a
static regain, resulting in loss efficiency.
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