LG Electronics LSC183VMA service manual Functions, Indoor Unit

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Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

• Room temperature sensor. (THERMISTOR)

Room temperature control

• Maintains the room temperature in accordance with the Setting Temp.

Starting Current Control

• Indoor fan is delayed for 5 sec at the starting.

Time Delay Safety Control

• Restarting is inhibited for approx. 3 minutes.

Indoor Fan Speed Control

• High, Med, Low, CHAOS

Operation indication Lamps (LED)

Signal Receptor

Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.)

Operation Indication Lamps

 

 

On/Off

: Lights up during the system operation.

 

Sleep Mode

: Lights up during Sleep Mode Auto operation.

 

Timer

: Lights up during Timer operation.

 

Defrost Mode

: Lights up during Defrost Mode or

 

 

Hot Start operation.(Heat pump model only)

 

Outdoor unit operation

: Lights up during outdoor unit operation.

 

 

(Cooling model only)

Operation indication lamps

 

 

Soft Dry Operation Mode

• Intermittent operation of fan at low speed.

Sleep Mode Auto Control

The fan is switched to low(Cooling), med(Heating) speed.

The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

Natural Air Control by CHAOS Logic

The fan is switched to intermittent or irregular operation

The fan speed is automatically switched from high to low speed.

Airflow Direction Control

The louver can be set at the desired position or swing up and down automatically.

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Defrost(Deice) control (Heating)

Both the indoor and outdoor fan stops dur- ing defrosting.

Hot-start Control (Heating)

The indoor fan stops until the

evaporator pipe temperature will be reached at 28°C.

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Contents Room Air Conditioner Contents Details of 2003 LG Model Name Code Type Code of Model MeaningFunctions Indoor UnitOperation ON/OFF Operation Mode Selection Room, Temperature CheckingTemperature Setting Setting the Time or Timer Timer SelectionProduct References LSC183VMAIndoor Unit DimensionsIndoor Unit Outdoor Unit 18K Gas sideRefrigeration Cycle Diagram Cooling Only ModelsWiring Diagram 18K Cooling Only ModelsHealthy 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 H/P Model Remote Control Operation ModeForced Operation Test operationCompressor on Indicator Display FunctionSelf-diagnosis Function Heating ModelInstallation Installation of indoor, Outdoor unitSelect the best location Piping length and elevationPreparing work for Installation Open panel frontCover pipe and cover side remove Drain hose junctionHow to fix installation plate Flaring work Flaring Work and Connection of PipingConnection of piping Indoor Indoor unit installation Wrap the insulation material around the connecting portionInstallation Information For right piping Good case Bad caseConnection of the pipes-Outdoor For right piping. Follow the instruction belowConnecting The Cable Between Indoor Unit and Outdoor Unit Connection of the cableConnection method of the connecting cableExample For strand wiringChecking the Drainage and forming the pipings Checking the drainageForm the piping To check the drainageCircuit Breaker Use a circuit breaker or time delay fuse Connect the cable to the indoor unitAir Purging Air purgingAir purging with vacuum pump PreparationEvacuation Finishing the jobPanel Front Assembly Drive three screwsPrepare remote control Pump Down ProcedureTest Running Settlement of outdoor unitName and Function-Remote Control OperationTo remove the Grille from the Chassis To remove the Control BoxBefore removing the Turbo Fan To remove the EvaporatorTo remove the Motor Way, 3-way Valve Way Valve Liquid SideProcedure Air purgingCheck for gas leakage Purge the air from the systemAir purging of the charge hose Pumping downSet the 2-way valve to the closed position Re-air purging Balance refrigerant of the 2-way, 3-way valves Gas leakageEvacuation All amount of refrigerant leakedGas Charging After EvacuationConnect the charge hose to the charging cylinder Purge the air from the charge hoseCycle Troubleshooting Guide Trouble analysisYES Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive When Indoor Fan does not operate Check connecting condition of the CN-MOTOR ConnectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit No. of pins Voltage of Connectors according toIndoor Fan Speed Electronic Control Device Main PWB ASSYIndoor UnitMain PWB ASSYOutdoor Unit ModelDisplay PWB Assembly Indoor Unit SUB PCB ASMOutdoor Unit MicomExploded View and Replacement Parts List Parts Listindoor Location Description Remarks LSC183VMAOutdoor unit18K W0CZZParts Listoutdoor Location Description QTY Remarks LSC183VMAMemo Memo August