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LSC183VMA service manual Memo
Models:
LSC183VMA
1
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Troubleshooting
Install
Parts list
Refrigeration Cycle Diagram
Dimension
Wrap the insulation material around the connecting portion
Horizontal Airflow Direction Control ButtonOptional 2nd F Reset
Panel Front Assembly
Pump Down Procedure
When a comunication error occurs
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MEMO
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Contents
Room Air Conditioner
MODEL LSC183VMA
SERVICE MANUAL
Refrigeration Cycle Diagram
Contents
Dimensions
Wiring Diagram
Type
Details of 2003 LG Model Name
Code
Code of Model
Operation ON/OFF by Remote controller Sensing the Room Temperature
Functions
Indoor Unit
Room temperature control
Temperature Setting
Remote Control
Room, Temperature Checking
Setting the Time or Timer Timer Selection
Product References
Indoor Unit
Dimensions
1 Indoor Unit
2 Outdoor Unit 18K
Gas side
INDOOR UNIT
Refrigeration Cycle Diagram
Cooling Only Models
OUTDOOR UNIT
1 Indoor Unit
Wiring Diagram
18K Cooling Only Models
2 Outdoor Unit 18K
DISPLAY
Operation Details
1. MAIN UNIT FUNCTION
Cooling Mode Operation
Heating Mode Operation
Defrost Control
1 Fuzzy Operation for Cooling
Fuzzy Operation C/O Model
Fuzzy Operation H/P Model
2 Fuzzy Operation for Dehumidification
On-Timer Operation
Airflow Speed Selection
3 Fuzzy Operation for Heating
Sleep Timer Operation
Off-Timer Operation
Off-Timer ↔ On-Timer Operation
Chaos Swing Mode
Forced Operation
Remote Control Operation Mode
Jet Cool Mode Operation H/P Model
Test operation
1. Heating Model
Display Function
Self-diagnosis Function
2. Cooling Model
1 Select the best location
Installation
1. Installation of indoor, Outdoor unit
2 Piping length and elevation
2. Cover pipe and cover side remove
3 Preparing work for Installation
1. Open panel front
3. Drain hose junction
4 How to fix installation plate
5 Preparing work for installation
2 Connection of piping Indoor
2. Flaring Work and Connection of Piping
1 Flaring work
1. Cut the pipes and the cable
3. Indoor unit installation
5. Wrap the insulation material around the connecting portion
3 Connection of the pipes-Outdoor
Installation Information For right piping Good case
Bad case
For right piping. Follow the instruction below
2. Separately wire the high and low voltage line
3. Connecting The Cable Between Indoor Unit and Outdoor Unit
Wiring Diagram
Every wire must be connected firmly
2 Connection method of the connecting cableExample
2 Form the piping
4. checking the Drainage and forming the pipings
1 Checking the drainage
1. To check the drainage
CAUTIONI
3 Connect the cable to the indoor unit
Air Conditioner
2 Air purging with vacuum pump
5. Air Purging
1 Air purging
1. Preparation
4. Finishing the job
Soap water method
3. Evacuation
3. Drive three screws
6. Panel Front Assembly
left
1. Prepare remote control
7. Test Running
PUMP DOWN
Pump Down Procedure
Operation Mode
Name and Function-Remote Control
Operation
Cooling Operation Auto Operation Healthy Dehumidification Operation
2. To remove the Control Box
Disassembly of the parts Indoor unit
1. To remove the Grille from the Chassis
5. To remove the Motor
3. To remove the Evaporator
4. Before removing the Turbo Fan
2-way, 3-way Valve
2-way Valve Liquid Side
CAUTION Do not leak the gas in the air during Air purging
Procedure
1. Air purging
1 Recheck the piping connections
2 Operate the unit for 10 to 15 minutes
2. Pumping down
Procedure
4 Air purging of the charge hose
Re-installation
1 Re-air purging
Procedure
7 Mount the valve stem nuts and the service port nut
Gas leakage
2 Balance refrigerant of the 2-way, 3-way valves
Procedure
2 Connect the charge set to the 3-way valve’s port
Procedure
3. Evacuation
Vacuum pump
All amount of refrigerant leaked
5 Mount the valve stem nuts and the service port nut
4. Gas Charging
Procedure
After Evacuation
Cycle Troubleshooting Guide
1. Trouble analysis
Refer to Electronic Control Device drawing and Schematic diagram
2. Product does not operate at all
3. The product is not operate with the remote controller
COMP ON
4. Compressor/Outdoor Fan are unable to drive
Check point
COMP OFF
5. When Indoor Fan does not operate
6. When Vertical Louver does not operate
7. When a comunication error occurs
Off for 3 seconds
8. The phenomena in case of connecting error INDOOR UNIT
On for 0.5 second
OUTDOOR UNIT
No. of pins
9. Voltage of Connectors according to
Indoor Fan Speed
MODELS
TOP VIEW BOTTOM VIEW PWB ASSY SVC PART LIST
Electronic Control Device
1 MAIN PWB ASSYIndoor Unit
MODEL
OPTIONAL FUNCTION
2 MAIN PWB ASSYOutdoor Unit
PWB ASSY SVC PART LIST
TOP VIEW BOTTOM VIEW
3 DISPLAY PWB ASSEMBLY
4 SUB P.W.B ASSEMBLY
PWB ASM6871A20363
OUTDOOR
1. Indoor Unit
DiagramSchematic
2. Outdoor Unit
MICOM
Exploded View and Replacement Parts List
1. Indoor Unit
DESCRIPTION
Parts Listindoor
LOCATION
REMARKS
2. Outdoor unit18K
DESCRIPTION
Parts Listoutdoor
LOCATION
REMARKS
MEMO
MEMO
Printed in Korea
August
P/No. 3828A20135Q