Topaz TZ-12B, Owner'S Manual

Page: 7 / 22

Portable Air Conditioners
7
porates V-belts drives. The condition of the belt, along
with its tension and alignment should be checked at least
once a year for proper operation. Replace the belt if it has
cracked or is glazed. Adjust the belt tension for a 3/16”
deflection of the belt with 2 pounds of force applied at the
center of the free span.
Sheave Adjustment,
(TZ-60B, 60B3, 60B4 Models only)
The condenser fan on the TZ-60B series of air condition-
ers utilizes an adjustable sheave on the motor to drive
the blower. The sheave is preset at the factory and should
not be adjusted. However the blower, motor and drives
should periodically be checked for tightness and align-
ment. Check the setscrews that connect the sheaves and
blower wheel to the shafts to make sure they are secure.
Make sure the setscrews locking down the adjustable
flange on the motor sheave are secure.
The factory setting for the drive on the condenser fan
motor is 4 and turns open from the closed position.