Topaz TZ-12B, Owner'S Manual

Page: 11 / 22

Portable Air Conditioners
11
i. Plug the unit into power and test it in all
operating modes; COOL and FAN.
Condenser Fan Motor,
(TZ-60B, 60B3, 60B4 only):
1. Disconnect power from the unit.
2. Remove cabinet side panels on both sides of the
condenser coil.
3. Disconnect wires from motor. Tag the wires so they
can be attached to the same terminals or wires on the
new motor.
4. Remove belt from drives.
5. Remove bolts holding motor to motor mount.
6. Remove sheave from motor and install on new motor.
7. Install new motor reversing the removal procedure.
Make sure sheave is lined up before fully securing.
8. Adjust sheave and belt tension as outlined in the
preventative maintenance section.
9. Before wiring motor to power leads make sure it is
set up for the proper voltage and rotation. Use old
motor wiring as a reference.
10. Reassemble unit and run blower. Check rotation and
amp draw before placing the unit back in service.
Evaporator Fan Motor,
(TZ-60B, TZ-60B3 and TZ-60B4 only):
1. Disconnect power from the unit.
2. Remove cabinet side panels on both sides of the
evaporator coil.
3. Disconnect wires from motor. Tag the wires so they
can be attached to the same terminals or wires on the
new motor. Note that some of the wires are not used
but must be capped to avoid shorting them out.
4. Loosen the setscrews holding the blower wheel to
the motor shaft. Make sure the wheel is loose on
the shaft. The setscrews are accessible through the
blower housing inlet opposite the motor.
5. Remove bolts holding the motor mount to the side of
the blower housing.
6. Slide the motor and motor mount out of the wheel
and housing. The wheel is too large to pull through
the blower inlet. Let it slide off the motor shaft and
drop to the bottom of the housing.
7. Remove the motor mount from the motor and install
it on the new motor in the same position as the
previous motor.
8. Install new motor and blower, reversing the removal
procedure.
9. Center the blower wheel in the housing and tighten
down the set screws. Rotate the wheel to make sure it
is not rubbing on the blower housing
10. Before wiring motor to power leads make sure it is
setup for the proper voltage and rotation. Use old
motor wiring as a reference.
11. Reassemble unit and run blower. Check rotation and
amp draw before placing the unit back in service.