Inspect the filter and grills for dirt accumulation which could prevent air flow through the filter material.
Inspect the air filter for damage or deterioration.
Replace air filter if damaged or deteriorated.
Cleaning. Clean the air filter by washing in a soap and water solution. Dry thoroughly and spray with air filter
coater NSN 4130-00-860-0042.
Installation. Install the air filter as follows:
Place a grill on each side of the air filter and insert in the louver frame.
Position gasket and louver on louver frame.
Secure with eight attaching screws.
Section XIV. MAINTENANCE OF HUMIDIFIER ASSEMBLY
A humidifier assembly is mounted on the front panel of the air conditioner evaporator fan section and functions to
spray an atomized water mist into the evaporator blower as required by a humidistat control. Remote control of the
humidifier is achieved through a humidistat which forms a part of the air conditioner control box. The humidifier
assembly consists of an electric motor, motor balancing discs and a water inlet valve controlled by a float.
4-31. Humidifier Assembly
Removal. Remove the humidifier assembly as follows:
Close the humidifier supply draincock at the base of the water tank. (See fig. 4-13.)
Using a suitable container, drain the humidifier supply line by opening the humidifier drain valve. (See fig.
Figure 4-16. Humidifier Assembly Removal and Installation.