LG Electronics AMNC123DEA0(LMN120CE), AMNH123DEA0(LMN120HE) Gas Charging, After Evacuation

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2-way, 3-way Valve

(3) Gas Charging

(After Evacuation)

Indoor unit

Liquid side

 

Open

Outdoor unit

2-Way

valve

Gas side

Open

3-Way

valve

Indoor unit

Liquid side

 

Open

2-Way

valve

Gas side

Open

3-Way

valve

Charging

manifold gauge

cylinder

 

Low-handle

Check valve (OPEN)Hi- handle (OPEN)

• Procedure

1.Connect the gauge to the charging cylinder.

-Connect the charge hose which you disconnect- ed from the vacuum pump to the valve at the bottom of the cylinder.

-If you are using a gas cylinder, also use a scale and reverse the cylinder so that the system can be charged with liquid.

2.Purge the air from the charge hose.

-Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air. (Be careful of the liquid refrigerant). The procedure is the same if using a gas cylinder.

3.Open the low handle on the gauge and charge the system with liquid refrigerant.

-If the system can not be charged with the speci- fied amount of refrigerant, it can be charged with a little at a time (approximately 150g each time) while operating the air conditioner in the cooling cycle; however, one time is not suffi- cient, wait approximately 1 minute and then repeat the procedure(pumping down-pin).

4.Immediately disconnect the charge hose from the gas side valve's service port.

This is different from previous procedures. Because you are charging with liquid refrigerant from the gas side, absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner.

- Stopping partway will allow the gas to be dis- charged.

-If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose.

5.Mount the valve stem nuts and the service port nut.

-Use torque wrench to tighten the service port nut to a torque of 1.8 kg.m.(4.2kg.m/5.5kg.m.)

-Be sure to check for gas leakage.

Service Manual 79

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Contents Outdoor Unit A3UH363FA0LMU360HE A3UC363FA0LMU360CE Indoor Unit Room Type Art Cool TypeTable of Contents Indoor Unit Model Number NomenclatureOutdoor Unit Combination table Symbols Used in this ManualControl box securely Cuit and breaker Safety PrecautionsInstallation Be sure not to do Be sure to follow the instructionOperation Do not place anything on the power cableBe cautious when unpacking Be sure the installation area does not deteriorate with ageHurricane arrives Nect the power supply cableDo not allow water to run into electric parts Smoke comes from productNot enter the product When the product is soakedInstall the drain hose to ensure that Keep level even when Installing the productNot use harsh detergents, sol OperationalAir flow Vents, etcDo not drink the water drained from the product Ly. Clean the filter every twoWhen cleaning or maintaining Do not step on or put anyting on the product. outdoor unitsIndoor Unit DimensionsSplit Type Indoor Outdoor Unit Indoor Unit Product SpecificationsModel A3UC363FA0LMU360CE A3UH363FA0LMU360HE Outdoor Unit Multiple piping modelsInstallation Parts InstallationInstallation Tools Select the best location Rooftop InstallationsOutdoor unit Multi Piping Type Piping length and elevationFixing Installation PlateStandard Type Drain hose junction Preparing work for Installation Artcool Type OnlyOpen panel front Remove cover pipe and cover sideDrive the fore plastic anchors into drilled points Sticking the installation guide map and fixing Indoor unitPut an Installation Guide Map on the desired surface Drill a hole in the wallFlaring work Flaring Work and Connection of PipingCheck Connecting the PipingIndoor Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Drive two screws Panel AssemblyArt Cool Type onlyBad case Good caseRemote Control Preparationoptional Outdoor unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleConnect the cable to the indoor unit To check the drainage Checking the drainageDrain piping Forming the piping Leakage test Air Purging and EvacuationChecking method PreparationEvacuation Repeat evacuation procedure for each indoor unitFinishing the job Additional ChargingSplit, Art Cool Type Test RunningOperation Cooling Mode OperationSoft Dry Operation Mode Heating Mode OperationFuzzy Operation Defrost ControlHeatingFuzzy Operation for Cooling Fuzzy Operation for Dehumidification On-Timer OperationOff-Timer Operation Airflow Speed SelectionChaos Natural Wind Mode Off-Timer = On-Timer OperationSleep Timer Operation Chaos Swing ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitDefrostDeice control Heating IndicatorArt Cool Type Indoor Unit OperationFunction of Outdoor Unit Cooling Model , Heat Pump Model Remote Control Operation15 2nd F Button To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover To remove the Control Box Before removing the Turbo Fan To remove the EvaporatorTo remove the Motor Electronic Control Device Schematic DiagramSplit Type Outdoor Outdoor Unit Schematic Diagram Art Cool Type Indoor Unit Wiring DiagramBottom View Components LocationsArt Cool Type Schematic Diagram Component side Solder side A3UC363FA0LMU360CE Troubleshooting GuideRefrigeration Cycle Diagram A3UH363FA0LMU360HESelf-diagnosis Function Indoor ErrorOutdoor Error Error IndicatorTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Indoor inlet pipe sensor Error CodeCheck Point Indoor air sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Pipe sensor Title Cause of error Check point & Normal conditionOutdoor air sensor Condensor pipe sensor Way Valve Liguid Side Way, 3-way ValveSet the liquid side valve to the closed position ProcedurePumping down Air purging of the charge hoseEvacuation Mount the valve caps and the service port capsAll amount of refrigerant leaked Connect the gauge to the charging cylinder Mount the valve stem nuts and the service port nutGas Charging After EvacuationS4, SE chassis Exploded View & Replacement Parts ListS4 chassis SE chassis Parts List S4, SE chassisLMN090HE SP3 Chassis Art Cool Type Filter ASSEMBLY,AIR Cleaner Parts List SP3 chassisA3UC363FA0LMU360CE Code Parts List A3UH363FA0LMU360HE, A3UC363FA0LMU360CEMay No A20474C