Samsung MH020FVEA Service Manual page 156

Reference for Installation
10-3-2 MH060FXEA3B/MH070FXEA4B/MH080FXEA4B
Refill an air conditioner with refrigerant when refrigerant has been leaked at installing or using.
1) Purge air(for new installation only).
2) Turn the 5/8" service valve clockwise to close,
connect the pressure gauge (low pressure side)
to the service valve, and open the 5/8" service
valve again.
3) Connect the tank to refill with refrigerant.
4) Set the unit to cool operation mode.
5) Check the pressure indicated by the pressure
gauge(low pressure side).
* Standard pressure is should be 8.0~9.0kg/cm
in a regular, high operation mode.
* Refer to the 11-7 Pressure Graph.
6) Open the refrigerant tank and fill with refrigerant
until the rated pressure is reached.
* It is recommended not to pour the refrigerant
in too quickly, but gradually while operating a
pressure valve.
7) Stop operation of the air conditioner.
8) Close the 5/8" service valve, disconnect the
pressure gauge, and open the 5/8" service valve
again.
9) Close the cap of each valve.
10-6
2
Compound
gauge
For mounting
other and of
hose when
not in use
Suspension hook
High
pressure
gauge
Hand
wheel
Finger tight
fittings
Connected to
high pressure
side
Charging line
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