LG HMC030KD1 Service Manual - Page 45
Balance, refrigerant, valve, Procedure
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2) Balance refrigerant of the 3-way valve (Gas leakage) Indoor unit c ) ( --russ% -11117, Liquid side -7\ 3-Way valve Open ''t Outdoor unit ( -1-1-E% Gas side -.) 1_722F .1 3-Way valve 1 Open 00 } L OPEN CLOSE 1 • 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. (3) Open the valve (Lo side) on the charge set and discharge the refrigerant until the gauge indicates 0 kg/cm2G. - If there is no air in the refrigerant cycle (the pressure when the air conditioner is not running is higher than 1 kg/cm2G), discharge the refrigerant until the gauge indicates 0.5 to 1 kg/cm2G. 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. - 45 -