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Page Title:
REFRIGERATION SYSTEM SERVICING - (CHARGING). |
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 TM 5-4120-386-14
5-10. REFRIGERATION SYSTEM SERVICING - (CHARGING).
This task covers: Charging Refrigeration System
INITIAL SETUP
Equipment
Condition
Para
Condition Description
Refrigeration System Evacuated
Test Equipment
Charging Cylinder or Scale
Materials/Parts
Refrigerant-22, R-22
ACTION
REMARKS
LOCATION/ITEM
Never introduce liquid refrigerant
into the low pressure (suction)
service valve.
NOTE
Install top covers before charging unit.
The system must be evacuated before
charging. Using only refrigerant-22
to charge the unit. If available use
recycled refrigerant.
Connect the hose from the low
a.
pressure service valve to the
compound gage side of the
charging manifold. The hose
from the high pressure ser-
vice valve should be connected
to the high pressure gage side
of the manifold.
b.
Connect the center hose from
the charging manifold to a
well charged cylinder of
refrigerant-22, or a charging
cylinder.
Change 2
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