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4. Balance refrigerant of the 2-way, 3-way valves
(Gas leakage)
• Procedure
(1) Confirm that both the 2-way and 3-way valves
are set to the back seat.
(2) Connect the charge set to the 3-way valve's
port.
– Leave the valve on the charge set closed.
– Connect the charge hose with the push pin to
the service port.
Indoor unit
Lo
OPEN
Liquid side
2-Way
valve
Gas side
3-Way
valve
CLOSE
(3) Open the valve (Lo side) on the charge set
and discharge the refrigerant until the gauge
indicates 0 kg/cm
– If there is no air in the refrigerant cycle (the
pressure when the air conditioner is not
running is higher than 1 kg/cm
the refrigerant until the gauge indicates 0.5 to 1
kg/cm
necessary to apply a evacuatin.
– Discharge the refrigerant gradually; if it is
discharged too suddenly, the refrigeration oil
will also be discharged.
-41-
Outdoor unit
Open
Open
2
G.
G. if this is the case, it will not be
2
2
G), discharge
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Troubleshooting
