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It is highly recommended that records of all
“in-storage” inspections be maintained. Improper NOTICE
storage methods and procedures can result in
The fan must be ducted or guarded on the inlet and
damage to the unit and will void the manufactures
it is recommended the outlet of the fan be ducted
warranty. The user assumes responsibility for the
or guarded when the fan is accessible.
product while in storage.
Bolt the fan securely into position. When the motor and
NOTICE drives are furnished separately, they should be
mounted next. If the unit is mounted on an integral,
PRIOR TO INSTALLATION structural steel base, or on a reinforced concrete

inertia base, adjust the base, using the leveling bolts.
Prior to installation, it is recommended that Recheck the interior of the fan housing to be sure it is
installers / users review AMCA Publication 410 free of debris. Rotate the wheel by hand to insure that
“Recommended Safety Practices for Users and it is not rubbing or binding. Check the clearance of the
Installers of Industrial and Commercial Fans”. wheel and the inlet cone. If rubbing does exist, loosen
the bolts on the cone and shift the cone until the
If removing from storage, all grease should be purged clearance is obtained. If still rubbing, loosen the set
(if possible) and replenished with fresh grease. Check screws on the wheel and shift the wheel rearward to
unit to ensure all fasteners, for all components, as well obtain clearance, then re-tighten the set screws.
as any accessories are tightened. Rotate wheel by
hand to verify that it has not shifted and that no IN-LINE CENTRIFAN
rubbing or binding exists. Verify that the wheel and fan
surfaces are clean and free of debris.
The unit should be mounted on a rigid, flat foundation
on a floor or wall. A ceiling suspended unit must be
NOTICE rigidly supported from rods so the fan will not shake

or cause undue vibration. An isolation hanger is
INSTALLATION recommended for ceiling supported units. All units
have extended lube lines for lubrication of bearings.
“All” fan wheels are dynamically balanced, prior to
assembly. In addition, all fully assembled units PROPELLER FANS
undergo a final trim balance operation at final test,
to eliminate vibration. Rare exceptions to this are The fan panel should be mounted on a flat surface. If
direct drive units, where the electrical requirements any type of superstructure is necessary, it should be
of the drive motor do not comply with the factories
rigid and well braced, to prevent vibrations. If sponge
electrical capabilities. Belt driven units in this
rubber strips are used for mounting, the rubber should
category, as well as units shipped less motor and
be supported full length in the horizontal plane. The
drives are tested using factory motor and drive panel fan is mounted by anchor bolts through the
components. The end user is responsible for final panel, secured into the mounting frame. If the unit is
balancing, during installation, of any products that
rigidly mounted, the anchor screws should be
are unable to be factory tested, or that are shipped
tightened with special attention, being sure the panel
less motor and drives.
does not warp. If the panel is warped, the fan may be
thrown off center and cause interference with the
CENTRIFUGAL FANS venturi.

The fan should be mounted on a rigid, flat, level
foundation. Vibration isolators are recommended.
They should be installed in position and leveled, using
a large surface shim (if necessary), before positioning
the fan. The fan should be checked to ensure ALL
bolts are tightened. The fan can then be lifted into
position on the vibration base. Be sure the air flow is
correct for the duct connection.
PBOIPM-V05
REVISED 12/2018