REFRIGERATION SYSTEM SERVICING - (PRESSURE TESTING).

TM 5-4120-386-14

5-l6. REFRIGERATION SYSTEM SERVICING - (PRESSURE TESTING).

This task covers: Test

INITIAL SETUP

Equipment

Condition

Para

Conditioner Description

Service Valve Access Cover removed.

LOCATION/ITEM

ACTION

REMARKS

Check to see that power is

disconnected.

Remove caps from high and low

1. Charging

Valve Caps

pressure service valves.

2 . Refrigeration

Connect low pressure

System Pressure

gage hose of manifold valve

to suction service valve.

Connect high pressure

hose of manifold valves to

discharge service valve.

Purge hoses - open discharge

and suction service valves.

Check that manifold valves

are closed.

Start air conditioner.

Compare gage readings with

the normal range of system

pressure as shown on the

following table.

5-56