LG LB-F3660HL Manual page 29

2) Balance refrigerant of the 3-way valve
(Gas leakage)
Indoor unit
• Procedure
(1) Confirm that both the liquid side and gas side
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 to the service port.
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Only for training and service purposes
Liquid side
Gas side
Lo
OPEN CLOSE
3-Way
valve
Open
3-Way
valve
Open
(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 2 G. if this is the case, it will not be
necessary to apply a evacuatin.
– Discharge the refrigerant gradually; if it is
discharged too suddenly, the refrigeration oil
will also be discharged.
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Outdoor unit
G.
2
2 G), discharge
LGE Internal Use Only