52c,p series, Fan motor replacement – Carrier P User Manual

Page 30

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52C,P

SERIES

30

FAN MOTOR REPLACEMENT

1. DISCONNECT ALL POWER TO UNIT.
2. Remove the unit from the sleeve as detailed in the

UNIT DISASSEMBLY section and place the unit
on a large flat surface.

3. Remove the discharge deck and grille as detailed

in Remove The Discharge Deck Assembly section.

4. Remove heater plate assembly as detailed in

Accessing The Heater Assembly section. The
blower wheel should now be accessible.

5. Using adjustable pliers, carefully remove the

spring clip that secures the blower wheel to the
fan shaft. Remove the blower wheel.

6. Open the Control box as described in the UNIT

DISASSEMBLY section, Open the Control
Box
. Disconnect the fan motor wires from the
rotary switch and capacitor. All units are
equipped with two-speed motors, which have
2 wires on the capacitor and 2 wires on the rotary
switch. Refer to the unit wiring schematic which
is attached to the front panel of the control box.
See Figure 56.

7. Carefully pull fan motor leads through the parti-

tion hole, located in the back of the control box.

8. Remove the top gussets, as detailed in Remove the

Gussets section.

9. Remove the top half of the condenser orifice as

detailed in Detach the Condenser Orifice From the
Condenser Coil section.

10. Using a Phillips head screwdriver, remove the fan

motor shield. The fan motor mounting screws
should now be accessible. Remove the 3 mounting
screws that secure the fan motor to the partition
and remove the fan motor from the unit.

11. Using needle nose pliers, remove condenser fan

hub clamp. Slide condenser fan off fan motor
shaft.

12. Re-install the new fan motor by reversing Steps 1

through 11.

Safety glasses should be worn to protect eyes in the
event the spring clip breaks free from pliers.

WIRING
SCHEMATIC

POWER
CORD

FIGURE 56 — LOCATION OF WIRING SCHEMATIC

ON FRONT PANEL OF CONTROL BOX

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