SERVICE (CHARGING) VALVES. - TM-5-4120-384-140261

TM5-4120-384-14

5-27. PRESSURE SWITCHES.-Continued

(8)

Install

junction

box

and

control

module

(para

4-21

and

4-26).

(9) Install

conditioned

air

supply

louver

(para

4-14)

was

removed.

(10) (Models F18H-3S and F18H-1S) Install top front and rear

(Models F18H-3SA and F18H-3SB) Install top

covers (para 4-11).

cover (para 4-11).

(11) Evacuate and charge the refrigeration

system

accordance with paragraphs 5-15 and 5-16.

5-28. SERVICE (CHARGING) VALVES.

The service (charging) valves

are

located

the

rear

(compressor/

condenser) compartment.

Removal.

(See

fig.

5-16.)

(1)

Disconnect

power

source.

(2) (Models F18H-3S and F18H-1S) Remove top rear cover (para

(Models F18H-3SA and F18H-3SB) Remove top cover (para

4-11).

(3) Discharge

and

purge

refrigeration

system

per

paragraphs

5-11 and 5-12.

(4) Remove screw, lock washer,

flat

washer,

and

loop

clamp

from the valve to be replaced.

(5) Disconnect

flare

nut

from

valve

replaced

and

remove

valve from unit.

Inspect/Replace.

Inspect

service

valves

for

damage

and

replace if suspected bad.

Installation.

(1)

Slip

valve

place

and

tighten

flare

nut.

(2)

Secure

with

screw,

lock

washer,

flat

washer,

and

loop

clamp.

(3)

Replace

dehydrator.

(See

para

5-31.)

(4) Leak

test

newly

connected

joints

and

all

connections

the

area.

Change 2

5-62