Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LSC183VMA Electronic Control Device, MAIN PWB ASSYIndoor Unit, Model, P/No, OR1H

Models: LSC183VMA

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Electronic Control Device

(1)MAIN PWB ASSY(Indoor Unit)

•TOP VIEW

• BOTTOM VIEW

• PWB ASSY SVC PART LIST

MODEL

P/No.

OPTIONAL FUNCTION

OR1H

OR2H

OR3H

OR4H

OR5H

OR6H

18K Cooling Model

6871A20387C

15K

OPEN

OPEN\

OJ1H, OJ2H, : SHORT

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Page 52

Image 52

LG Electronics LSC183VMA Electronic Control Device, MAIN PWB ASSYIndoor Unit, Top View Bottom View Pwb Assy Svc Part List

Contents

SERVICE MANUAL MODEL LSC183VMARoom Air Conditioner Contents DimensionsRefrigeration Cycle Diagram Wiring DiagramDetails of 2003 LG Model Name CodeType Code of ModelFunctions Indoor UnitOperation ON/OFF by Remote controller Sensing the Room Temperature Room temperature controlRemote Control Room, Temperature CheckingTemperature Setting Setting the Time or Timer Timer SelectionProduct References 1 Indoor Unit DimensionsIndoor Unit 2 Outdoor Unit 18K Gas sideRefrigeration Cycle Diagram Cooling Only ModelsINDOOR UNIT OUTDOOR UNITWiring Diagram 18K Cooling Only Models1 Indoor Unit 2 Outdoor Unit 18KOperation Details 1. MAIN UNIT FUNCTIONDISPLAY Cooling Mode OperationHeating Mode Operation Defrost ControlFuzzy Operation H/P Model Fuzzy Operation C/O Model1 Fuzzy Operation for Cooling On-Timer Operation Airflow Speed Selection2 Fuzzy Operation for Dehumidification 3 Fuzzy Operation for HeatingOff-Timer Operation Off-Timer ↔ On-Timer OperationSleep Timer Operation Chaos Swing ModeRemote Control Operation Mode Jet Cool Mode Operation H/P ModelForced Operation Test operationDisplay Function Self-diagnosis Function1. Heating Model 2. Cooling ModelInstallation 1. Installation of indoor, Outdoor unit1 Select the best location 2 Piping length and elevation3 Preparing work for Installation 1. Open panel front2. Cover pipe and cover side remove 3. Drain hose junction4 How to fix installation plate 5 Preparing work for installation2. Flaring Work and Connection of Piping 1 Flaring work2 Connection of piping Indoor 1. Cut the pipes and the cable3. Indoor unit installation 5. Wrap the insulation material around the connecting portionInstallation Information For right piping Good case Bad case3 Connection of the pipes-Outdoor For right piping. Follow the instruction below3. Connecting The Cable Between Indoor Unit and Outdoor Unit Wiring Diagram2. Separately wire the high and low voltage line Every wire must be connected firmly2 Connection method of the connecting cableExample 4. checking the Drainage and forming the pipings 1 Checking the drainage2 Form the piping 1. To check the drainageAir Conditioner 3 Connect the cable to the indoor unitCAUTIONI 5. Air Purging 1 Air purging2 Air purging with vacuum pump 1. Preparation3. Evacuation Soap water method4. Finishing the job left 6. Panel Front Assembly3. Drive three screws 7. Test Running PUMP DOWN1. Prepare remote control Pump Down ProcedureName and Function-Remote Control OperationOperation Mode Cooling Operation Auto Operation Healthy Dehumidification Operation1. To remove the Grille from the Chassis Disassembly of the parts Indoor unit2. To remove the Control Box 4. Before removing the Turbo Fan 3. To remove the Evaporator5. To remove the Motor 2-way, 3-way Valve 2-way Valve Liquid SideProcedure 1. Air purgingCAUTION Do not leak the gas in the air during Air purging 1 Recheck the piping connections2. Pumping down Procedure2 Operate the unit for 10 to 15 minutes 4 Air purging of the charge hose1 Re-air purging ProcedureRe-installation 7 Mount the valve stem nuts and the service port nut2 Balance refrigerant of the 2-way, 3-way valves ProcedureGas leakage 2 Connect the charge set to the 3-way valve’s port3. Evacuation Vacuum pumpProcedure All amount of refrigerant leaked4. Gas Charging Procedure5 Mount the valve stem nuts and the service port nut After EvacuationCycle Troubleshooting Guide 1. Trouble analysisRefer to Electronic Control Device drawing and Schematic diagram 2. Product does not operate at all3. The product is not operate with the remote controller 4. Compressor/Outdoor Fan are unable to drive Check pointCOMP ON COMP OFF5. When Indoor Fan does not operate 6. When Vertical Louver does not operate 7. When a comunication error occurs On for 0.5 second 8. The phenomena in case of connecting error INDOOR UNITOff for 3 seconds OUTDOOR UNIT 9. Voltage of Connectors according to Indoor Fan SpeedNo. of pins MODELSElectronic Control Device 1 MAIN PWB ASSYIndoor UnitTOP VIEW BOTTOM VIEW PWB ASSY SVC PART LIST MODELPWB ASSY SVC PART LIST 2 MAIN PWB ASSYOutdoor UnitOPTIONAL FUNCTION 3 DISPLAY PWB ASSEMBLY 4 SUB P.W.B ASSEMBLYTOP VIEW BOTTOM VIEW PWB ASM6871A20363DiagramSchematic 1. Indoor UnitOUTDOOR 2. Outdoor Unit MICOMExploded View and Replacement Parts List 1. Indoor UnitParts Listindoor LOCATIONDESCRIPTION REMARKS2. Outdoor unit18K Parts Listoutdoor LOCATIONDESCRIPTION REMARKSMEMO MEMO P/No. 3828A20135Q AugustPrinted in Korea