Section VIII. MAINTENANCE OF THE CONDENSATE DRAIN SYSTEM

4-22.

Service

2104, Grade 20 or better. Drain off excess oil

before installation.

Wash the filter with dry cleaning solvent, Federal

Specification P-D-680, and dry with clean, low

4-23.

Installation

pressure, compressed air. Dip or spray the filter

I n s t a l l the air filter in the reverse order of removal.

with "Filter Kote" or oil, Specification M11-L-

Section VIII. MAINTENANCE OF THE CONDENSATE DRAIN SYSTEM

4-24. General

drain tube assembly. Remove the compression

spring and the ball check from the drain tube

When the condensate drain system is opened for

assembly. Clean accumulated debris from the

maintenance, all hoses and tubes which are

condensate drain pan located under the evaporator

disconnected should be removed, inspected, and

c o i l . Blow out the drain tubes which are integral to

reinstalled securely.

the casing, the rubber drain tubes and the drain

4-25.

Removal

t u b e assemblies with compressed air. Clean the ball

Remove the front access panel (para 4-12), the

and compression spring with dry cleaning solvent,

control panel and junction box (para 4-36)

Federal Specification P-D-680, and dry throughly.

R e m o v e the nut, clamp and screw which secure the

I n s p e c t the ball and ball seat for pitting or scratches

l o w e r portion of each drain tube to the junction box

w h i c h would affect tight sealing. Inspect the spring

mounting bracket. Loosen each of the two hose

for proper tension. Inspect tbe rubber hoses for

c l a m p s which secure the short piece of rubber drain

s i g n s of wear and inspect all parts for cracks, weld

tubing to the drain to be assembled to the drain

breaks or other defects. Replace or repair as

tubing which is welded into the casing assembly.

required.

Slip the drain tube assembly and the rubber drain

4-27. Installation

tube out of the air conditioner. Remove the

discharge air grille (para 4-13).

I n s t a l l a t i o n of the condensate drain system shall be

in the reverse order of removal.

4-26.

Service

Remove the cotter pin from the lower end of the

Section

IV.

MAINTENANCE

THE

CIRCUIT

BREAKER

RESET

MECHANISM

4-28. General

each side. Loosen the screws holding the two

clamps which secure the circuit breaker actuator

The circuit breaker actuator cable provides a

cable to the right side of the junction box. Move the

means of re-setting the circuit breaker without the

a c t u a t o r cable up through the clamps to provide the

necessity of removing any panels or covers. The

reset knob is located at the rear of the air con-

maximum amount of clearance between the cable

s l e e v e and circuit breaker throw bar linkage. Secure

ditioner as shown in figure 1-2.

t h e junction box to its mounting brackets. Pull out

4-29. Test and Adjustment

the circuit breaker actuator cable knob at the rear

Remove the front access panel (para 4-12). Tbe

o f the air conditioner and adjust the end fitting core

circuit breaker reset bar is located at the lower right

o n the reset cable to insure that the circuit breaker

s i d e of the junction box, Raise the circuit breaker to

i s in the full UP position. Push the circuit breaker

i t s full UP position. It should hold in this position

actuator cable knob all the way in. Depress the

with no interference between the reset mechanism

c i r c u i t breaker throw bar and insure that it goes to

and its securing hardware. If there is interference

t h e full DOWN position. If it does not, readjust the

l o o s e n the junction box from the two side mounting

end fitting core.

brackets by loosening the two mounting screws at

Section X. MAINTENANCE OF EVAPORATOR AND CONDENSER FANS

4-30. Evaporator Fan

double

shafted

evaporator/condenser

fan

motor.

T h e direction of rotation is counter clockwise when

a. General. The air conditioner is equipped

viewed from the front of the air conditioner.

with an impeller type centrifugal evaporator fan.

The evaporator fan is mounted on one end of the

4-8