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LG Electronics LSC183VMA service manual August, P/No. 3828A20135Q, Printed in Korea

Models: LSC183VMA

1 63

Page 63

	August, 2003
P/No.: 3828A20135Q	Printed in Korea

Page 63

Image 63

LG Electronics LSC183VMA service manual August, P/No. 3828A20135Q, Printed in Korea

Contents

MODEL LSC183VMA SERVICE MANUALRoom Air Conditioner Wiring Diagram ContentsDimensions Refrigeration Cycle DiagramCode of Model Details of 2003 LG Model NameCode TypeRoom temperature control FunctionsIndoor Unit Operation ON/OFF by Remote controller Sensing the Room TemperatureSetting the Time or Timer Timer Selection Remote ControlRoom, Temperature Checking Temperature SettingProduct References Dimensions 1 Indoor UnitIndoor Unit Gas side 2 Outdoor Unit 18KOUTDOOR UNIT Refrigeration Cycle DiagramCooling Only Models INDOOR UNIT2 Outdoor Unit 18K Wiring Diagram18K Cooling Only Models 1 Indoor UnitCooling Mode Operation Operation Details1. MAIN UNIT FUNCTION DISPLAYDefrost Control Heating Mode OperationFuzzy Operation C/O Model Fuzzy Operation H/P Model1 Fuzzy Operation for Cooling 3 Fuzzy Operation for Heating On-Timer OperationAirflow Speed Selection 2 Fuzzy Operation for DehumidificationChaos Swing Mode Off-Timer OperationOff-Timer ↔ On-Timer Operation Sleep Timer OperationTest operation Remote Control Operation ModeJet Cool Mode Operation H/P Model Forced Operation2. Cooling Model Display FunctionSelf-diagnosis Function 1. Heating Model2 Piping length and elevation Installation1. Installation of indoor, Outdoor unit 1 Select the best location3. Drain hose junction 3 Preparing work for Installation1. Open panel front 2. Cover pipe and cover side remove5 Preparing work for installation 4 How to fix installation plate1. Cut the pipes and the cable 2. Flaring Work and Connection of Piping1 Flaring work 2 Connection of piping Indoor5. Wrap the insulation material around the connecting portion 3. Indoor unit installationFor right piping. Follow the instruction below Installation Information For right piping Good caseBad case 3 Connection of the pipes-OutdoorEvery wire must be connected firmly 3. Connecting The Cable Between Indoor Unit and Outdoor UnitWiring Diagram 2. Separately wire the high and low voltage line2 Connection method of the connecting cableExample 1. To check the drainage 4. checking the Drainage and forming the pipings1 Checking the drainage 2 Form the piping3 Connect the cable to the indoor unit Air ConditionerCAUTIONI 1. Preparation 5. Air Purging1 Air purging 2 Air purging with vacuum pumpSoap water method 3. Evacuation4. Finishing the job 6. Panel Front Assembly left3. Drive three screws Pump Down Procedure 7. Test RunningPUMP DOWN 1. Prepare remote controlCooling Operation Auto Operation Healthy Dehumidification Operation Name and Function-Remote ControlOperation Operation ModeDisassembly of the parts Indoor unit 1. To remove the Grille from the Chassis2. To remove the Control Box 3. To remove the Evaporator 4. Before removing the Turbo Fan5. To remove the Motor 2-way Valve Liquid Side 2-way, 3-way Valve1 Recheck the piping connections Procedure1. Air purging CAUTION Do not leak the gas in the air during Air purging4 Air purging of the charge hose 2. Pumping downProcedure 2 Operate the unit for 10 to 15 minutes7 Mount the valve stem nuts and the service port nut 1 Re-air purgingProcedure Re-installation2 Connect the charge set to the 3-way valve’s port 2 Balance refrigerant of the 2-way, 3-way valvesProcedure Gas leakageAll amount of refrigerant leaked 3. EvacuationVacuum pump ProcedureAfter Evacuation 4. Gas ChargingProcedure 5 Mount the valve stem nuts and the service port nut1. Trouble analysis Cycle Troubleshooting Guide2. Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram3. The product is not operate with the remote controller COMP OFF 4. Compressor/Outdoor Fan are unable to driveCheck point COMP ON5. When Indoor Fan does not operate 6. When Vertical Louver does not operate 7. When a comunication error occurs 8. The phenomena in case of connecting error INDOOR UNIT On for 0.5 secondOff for 3 seconds OUTDOOR UNIT MODELS 9. Voltage of Connectors according toIndoor Fan Speed No. of pinsMODEL Electronic Control Device1 MAIN PWB ASSYIndoor Unit TOP VIEW BOTTOM VIEW PWB ASSY SVC PART LIST2 MAIN PWB ASSYOutdoor Unit PWB ASSY SVC PART LISTOPTIONAL FUNCTION PWB ASM6871A20363 3 DISPLAY PWB ASSEMBLY4 SUB P.W.B ASSEMBLY TOP VIEW BOTTOM VIEW1. Indoor Unit DiagramSchematicOUTDOOR MICOM 2. Outdoor Unit1. Indoor Unit Exploded View and Replacement Parts ListREMARKS Parts ListindoorLOCATION DESCRIPTION2. Outdoor unit18K REMARKS Parts ListoutdoorLOCATION DESCRIPTIONMEMO MEMO August P/No. 3828A20135QPrinted in Korea

August, 2003

P/No.: 3828A20135Q

Printed in Korea