TM 9-4120-395-14&P
4-48. INDOOR COIL.
This task covers:
a. Inspection
b. Service
INITIAL SETUP:
Tools:
Tool Kit, service, refrigeration unit
Equipment Conditions:
Power off at power source.
Both front door assemblies removed. See para 4--i 7.
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) Inspect indoor coil for proper mounting, cleanliness, and leaks. See Figure 4-44. If coil requires cleaning,
service the coil. If the coil mount is loose or the coil is leaking contact Direct Support Maintenance
(2) Install both front door assemblies. See para 4-1-7.
b.
Service.
Compressed air used for cleaning purposes will not exceed 30 psi (2.1 kg/cm2).
Do not direct compressed air against skin. Use goggles or full face shield.
(1)
Blow dust and dirt out of the air passages in the indoor coil using compressed air or the discharge side of
a portable vacuum cleaner. Blow from back to front in the opposite direction from operational airflow.
See Figure 4-44.
(2) Install both front door assemblies. See para 4-17.
4-84
