LG Electronics LS-Q096ACG Procedure, Check for gas leakage, Purge the air from the system

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1. Air purging

Required tools : hexagonal wrench, adjustable wrench, torque wrenches, wrench to hold the joints, and gas leak detec- tor.

The additional gas for air purging has been charged in the outdoor unit.

However, if the flare connections have not be done correctly and there gas leaks, a gas cylinder and the charge set will be needed.

The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction.

Indoor unit	Liquid side
Indoor unit
	Open	Outdoor unit
	2-way
	valve
	Gas side
	Clsed
	3-way
	valve

Service port nut:

Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage from the refrigeration cycle.

* CAUTION : Do not leak the gas in the air during Air purging.

• Procedure

(1)Recheck the piping connections.

(2)Open the valve stem of the 2-way valve coun- terclockwise approximately 90°, wait 10 sec- onds, and then set it to closed position.

–Be sure to use a hexagonal wrench to operate the valve stem.

(3)Check for gas leakage.

–Check the flare connections for gas leakage.

(4)Purge the air from the system.

–Set the 2-way valve to the open position and remove the cap from the 3-way valve’s service port.

–Using the hexagonal wrench to press the valve core pin, discharge for three seconds and then wait for one minute. Repeat this three times.

(5)Use torque wrench to tighten the service port nut to a torque of 1.8kg.cm.

(6)Set the 3-way valve to the back seat.

(7)Mount the valve stem nuts to the 2-way and 3- way valves.

(8)Check for gas leakage.

–At this time, especially check for gas leakage from the 2-way and 3-way valve’s stem nuts, and from the service port nut.

Caution

If gas leakage are discovered in step (3) above, take the following mesures :

If the gas leaks stop when the piping connections are tightened further, continue working from step (4). If the gas leaks do not stop when the connections are retightened, repair the location of the leak, dis- charge all of the gas through the service port, and then recharge with the specified amount of gas from a gas cylinder.

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Contents Room Air Conditioner Contents Details of LG Model Name2002 Code Type Code of Model MeaningDetails of LG Model Name2003~ MeaningFunctions Indoor UnitRemote Control PLASMAOptional Setting the Time or Timer Timer Selection Room, Temperature CheckingAirflow Direction Control Air Circulation Model Name Product ReferencesUnit 1Ø, 220V, 60Hz Dimensions All ModelsOutdoor Unit 9k Heat Pump Refrigeration Cycle Diagram Cooling Only ModelsWiring Diagram LS-Q096ABL, LS-Q096AEL LS-H096QNA0, LS-H096QNA0Healthy Dehumidification Mode Cooling Mode OperationOperation Details Heating Mode Operation Defrost ControlFuzzy Operation H/P Model Fuzzy Operation C/O ModelFuzzy Operation for Cooling On-Timer Operation Airflow Speed SelectionFuzzy Operation for Dehumidification Fuzzy Operation for HeatingOff-Timer Operation Off-Timer ↔ On-Timer OperationSleep Timer Operation Chaos Swing ModeJet Cool Mode Operation C/O Model Jet Cool Mode Operation H/P ModelAir Cleaner Operation Forced OperationProtection of the evaporator pipe from frosting Remote Control Operation ModeBuzzer Sounding Operation Display Function Self-diagnosis FunctionHeating Model Cooling ModelSelection of the best location InstallationPiping length and elevation How to fix installation plate Drill a hole in the wallFlaring work Connection of piping Indoor Indoor unit installationFor right rear piping Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchInsert the connecting cable into the indoor unit Tape the drain hose and the connecting cableAlign the center of the pipings and sufficiently Connection of the pipes-OutdoorTighten the flare nut by hand Connecting The Cable Between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unitConnect the cable to the outdoor unit Checking the drainage Form the pipingTo remove the front panel from the indoor unit To check the drainagePrepare remote control Pump Down ProcedureSettlement of outdoor unit Evaluation of the performanceName and Function-Remote Control OperationON/OFF Timer Buttons Disassembly of the parts Indoor unit To remove the Grille from the ChassisWhen repair, do not damage the Caution label To remove the Control BoxTo remove the Discharge Grille To remove the EvaporatorTo remove the Motor Cover To remove the Cross-Flow FanWay, 3-way Valve Way Valve Liquid SideCheck for gas leakage ProcedurePurge the air from the system Air purging of the charge hose Set the 2-way valve to the closed positionRe-air purging Balance refrigerant of the 2-way, 3-way valves Gas leakageEvacuation All amount of refrigerant leakedConnect the charge hose to the charging cylinder After EvacuationPurge the air from the charge hose Cycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Product is not operate with the remote control Compressor/Outdoor Fan are unable to drive When indoor Fan does not operate When Vertical Louver does not operate When Heating does not operate Way RelayPage Electronic Control Device Main P.W.B Assembly DC Part TOP View Bottom View TOP View 6871A30009 TOP View 6871A20194 TOP View6871A20227 TOP View 6871A20390 TOP View 6871A20391 TOP ViewSchematic Diagram LED Type HVB Typeplasma Heat Pump Model LED Type Heat Pump Model HVB Type Exploded View and Replacement Parts List Parts ListIndoor LS-Q076ABL LS-Q076BBG LS-Q076BELLS-Q096ABL LS-Q096BBG CABLE, Flat CABLE, Falt Cover ASSEMBLY,MOTOR LS-Q082AAL LS-C082QMA0 LS-C082QNA0 LS-C096QGL0 LS-C096QLA0 LS-C096QNA0 LS-H096QGL1 W0CZZ Parts ListOutdoor 552202 567502 561410 554160 447910 550140 430410 552203-2 TUBE,CAPILLARY Bend Compressor Base ASSEMBLY,OUTDOOR Tube ASSY,CAPILLARY LS-C082QMA0 LS-C082QNAO LS-C096QGL0 3041AR2415K April