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REFRIGERANT CHARGING
Air purge(at the time of new installation only)
Close the gas pipe side valve by turning it
clockwise.
Connect the pressure gauge to the low
pressure side service valve, and then open
the gas pipe side valve again.
Connect it to the refrigerant filling tank.
(Turn the tank upside down : Fill the refrigerant
in liquid form.)
Start cooling operation.
Open the tank and refill the refrigerant
until arriving at the proper pressure.
(Refill the refrigent slowly checking the pressure.)
Check the pressure of the pressure gauge.
Check whether the low pressure side is within
the range of 4.5~5.5kg/cm
2
G
(outside temperature 35°C/95˚F).
Stop operation.
Close the gas pipe side valve, and loosen
the pressure gauge connected.
Then open the gas pipe side valve again.
Tighten the cap of each valve using
a specified tool.
OUTDOOR UNIT
Gas pipe side
Liquid
pipe side
E-30
REFRIGERANT CHARGING