FloAire BI-FARM User Manual

FloAire Fans

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RECEIVING INSPECTION
Check for damage or missing parts immediately upon receipt. Ensure that wheel rotates freely.
REPORT ANY DAMAGE PROMPTLY TO CARRIER.

INSTALLATION

MOTOR & V-BELT DRIVES

BELT TENSION & PULLEY ALIGNMENT
Excessive belt tension is the number 1
cause of blower bearing failure.

Excessive deflection is an indication that the belt is not
tight enough. If not corrected, slippage could cause loss of
blower speed and belt failure through wear.

Proper belt tension and pulley alignment are
essential for trouble free operation.

A belt should be just tight enough to avoid slippage.

A simple "Rule of Thumb" for checking belt
tension is illustrated.

Align pulleys with a straight edge to conserve belt life and
eliminate unnecessary noise.

When the belt is grasped as shown, a total
deflection of approximately 1" should be
easily attained.

Check

tension

before

start-up,

after

every

pulley

adjustment and regularly thereafter.

Insufficient deflection indicates that the belt
is too tight, resulting in noise from excessive
vibration, premature bearing failure, and
short belt life. Tight belts may overload a
motor that would otherwise be adequate.

Set Screws:

Ensure all set screws on both pulleys and

the blower wheel are tight.

ELECTRICAL

DISCHARGE POSITION ROTATION

Fig. 1

Fig. 2

MAINTENANCE

LUBRICATION

SE-6-3

AUGUST 1998

600 AND "BI" SERIES BLOWER

INSTALLATION AND MAINTENANCE INSTRUCTIONS

Mount motor with hardware provided and install pulleys and belt(s) with proper tension. Follow illustrated recommendations on belt installation below.

Mount blower on solid rigid flat base and secure with suitable fasteners through mounting hole provided in motor enclosure cabinet and support leg.
Ensure that all fasteners are tight and secure. Double check wheel set screw for tightness and ensure that wheel rotates freely. Shim as required for a
level installation. Vibration pads and flexible connectors to the inlet and outlet are recommended

Remove motor enclosure cabinet cover and lay unit down on intake collar (Fig. 1).

Remove 8 bolts and rotate motor compartment to desired position (Fig. 2) and replace 8 bolts in new position.

Inspect periodically for mounting rigidity. Verify belt for wear and tension and adjust as required. Inspect wheel for any dust accumulation and clean as
indicated.

Caution - do not dislodge balancing clips. Check set screw for tightness.

Connect motor in accordance with applicable codes. Provide properly sized motor overload protection to protect motor against electrical faults and
system changes. Confirm proper motor rotation on start-up.

Steel pillow block bearings with sealed in lubricant are used on models 610 to 618. No further lubrication is required. Models 620 to 625 and all BI's
use cast iron, pillow block, sealed bearings. Re-lubrication is unnecessary under most operating conditions. If re-lubrication is required, lubricant
should be compatible to Esso Beacon #325.

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