Section Ill. OPERATOR'S MAINTENANCE

Section Ill. OPERATOR'S MAINTENANCE

3-5. General

The instructions in this section are published for

the information and guidance of the operator to

maintain the air conditioner.

Warning: Disconnect the air conditioner from

the power source before performing any mainte-

nance on the components of the unit.

3-6. Mist Eliminator Service

a. General. The mist eliminator is located under

the top panel, between the evaporator air dis-

charge grille and the evaporator coil. It removes

moisture from the air after it has passed over the

evaporator coil, thereby reducing the amount of

moisture in air discharged into the conditioned

area.

b. Removal. Remove the cover panel and dis-

charge grille (para 317).

c. Servicing. Refer to figure 3-1 and service the

mist eliminator.

d. Installation. Refer to paragraph 3-17, and

install cover panel and discharge grille.

3-7. Filter, Air Conditioning Service

a. Removal. Remove the intake grille (para

3-17).

b. Servicing. Refer to figure 3-1 and service the

air conditioning filter.

STEP 1. LIFT MIST ELIMINATOR FROM CASING.

c. Installation. Install intake grille in reverse

STEP 2. REMOVE STUD (2). FILTER RETAINER,

order of removal (para 317 ).

AND AIR CONDITIONING FILTER.

STEP 3. WASH FILTER AND MIST ELIMINATOR

3-8. Evaporator Coil and Condenser

WITH AN APPROVED CLEANING SOLVENT

Coil Service

AND DRY WITH CLEAN, LOW-PRESSURE

COMPRESSED AIR.

a. R e m o v a l . Refer to paragraph 318 and

STEP 4. DIP OR SPRAY FILTER WITH FILTERKOTE

remove mist eliminator. Refer to paragraph 319,

OR OIL OF SPECIFICATION MILITARY

and remove condenser coil grille and screen.

0-2104 GRADE 20, 30, OR BETTER. DRAIN

OFF EXCESS OIL BEFORE INSTALLATION.

b. Servicing. Refer to figure 32 and service the

STEP 5. REINSTALL AIR FILTER MIST ELIMINATOR

evaporator coil and condenser coil.

IN ACCORDANCE WITH STAMPED ARROW

c. lnstallation. Install condenser coil grille and

DIRECTION.

screen and mist eliminator in reverse order of re-

ME 4120-222- 14/3-1

moval (para 3-18 and 3-19).

Figure 3-1. Servicing mist eliminator and air

conditioning filter.

3-9. Servicing Fresh Air Inlet Filter

a. Removal. Remove the fresh air inlet screen

and CE20VAL4 have no fuses. The new models

(para 3-19).

have two 5-amp cartridge fuses mounted in the

b. Servicing. Clean with compressed air. Re-

upper right corner of the control box.

place damaged filter.

b. Removal Remove fuses from fuse holder.

c. Installation. Refer to paragraph 319 and in-

c. Installation. Snap in new fuses of proper am-

stall the fresh air inlet screen.

perage and size.

3-10. Fuse Replacement

d. Testing. Use an ohmmeter and test fuse for

open.

a. General. The earlier Models of CE20VAL6

AGO 20053A