TM 9-4120-395-14&P
4-37. INDOOR FANS.
This task covers:
a. Inspection
b. Testing
c. Removal
d. Installation
INITIAL SETUP:
TooIs:
Tool Kit, service, refrigeration unit
Drill Set (only if installing new indoor fan)
Materials:
Rags (Appendix F, Item 7)
Silicone Adhesive (Appendix F, Item 12)
Equipment Conditions:
Power off at power source.
Both front door assemblies removed. See para 4-17.
Control box cover removed. See para 4-23.
General Safety Instructions:
Disconnect input power to the unit before performing any internal maintenance.
Voltages used can kill. Shutting the unit off at the thermostat does not disconnect
unit power.
a.
Inspection.
(1) Check the Indoor fans (1, Figure 4-33) for loose or missing hardware.
(2) Install control box cover and both front door assemblies. See paras 4-23 and 4-17.
b.
Service.
(1) Wipe the indoor Fans (i, Figure 4-33) with clean rags to remove dust.
(2) Install control box cover and both front door assemblies. See paras 4-23 and 4-17.
c.
Removal.
(1) Tag and remove wiring to indoor fan motor (2, Figure 4-33) from control box connections.
(2) Remove five screws (3) holding indoor fan assembly in place and retain.
(3) Cut foam (4) and silicone seals (5) around indoor fan assembly and pull the indoor fan assembly forward
and out from the air conditioner.
NOTE
The removal procedure is the same for either the left or the right indoor fan.
(4) Loosen the 5/16 set bolt (6) holding the indoor fan (1) to the fan motor shaft.
(5) Remove the four screws (7) that secure the fan to the front and rear brackets (8).
(6) Remove the three (1) screws (9) that secure the indoor fan motor bracket (10) to the indoor fan (1).
(7) Pull the indoor fan (i) away from the indoor fan rnotor bracket (10) and remove the three screws (1 i) holding
the fan side bracket (12) to the indoor fan.
4-60
