LG Electronics 230/208V service manual Contents, Preface

CONTENTS

1. PREFACE
1.1 SPECIFICATIONS	3
1.2 FEATURES AND BENEFITS	4
1.3 CONTROL LOCATIONS	6
1.4 ADDITIONAL CONTROLS	7
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS	9
2.1.1 FRONT GRILLE	9
2.1.2 CONTROL BOX (Half-Disassembly)....	10
2.1.3 CONTROL BOX (Full-Disassembly) ....	10
2.2 AIR HANDLING PARTS	11
2.2.1 HEATER ASSEMBLY AND CROSS
FLOW FAN	11
2.2.2 FAN	11
2.2.3 SHROUD	12
2.3 ELECTRICAL PARTS	12
2.3.1 OUTDOOR MOTOR	12
2.3.2 INDOOR MOTOR	12
2.3.3 COMPRESSOR	12
2.3.4 CAPACITOR	12
2.3.5 POWER CORD	13
2.3.6 P.C.B	13
2.4 REFRIGERATION CYCLE	14

2.4.1 CONDENSER	14
2.4.2 EVAPORATOR	14
2.4.3 CAPILLARY TUBE	14
3. INSTALLATION
3.1 HOW TO INSTALL THE UNIT	17
3.2 SUGGESTED TOOL REQUIREMENTS	18
3.2.1 PREPARATION OF SLEEVE	18
3.2.2 PREPARATION OF THE FRONT
GRILLE	18
3.2.3 UNIT INSTALLATION	19
3.3 ELECTRICAL REQUIREMENTS	20
3.3.1 ELECTRICAL DATA (FOR 230V/208 MODEL)	20
3.3.2 ELECTRICAL SAFETY	20
4. FERFORMANCE DATA	21
5. TROUBLESHOOTING GUIDE
5.1 OUTSIDE DIMENSIONS	26
5.2 PIPING SYSTEM	26
5.3 TROUBLESHOOTING GUIDE	27
6. SCHEMATIC DIAGRAM	32
7. EXPLODED VIEW	33
8. REPLACEMENT PARTS LIST	34

1. PREFACE

This SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1.When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF(O) and unplug the power cord.

2.Observe the original lead dress.

If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3.After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

—2—

1.2 INSULATION RESISTANCE TEST

1.Unplug the power cord and connect a jumper between 2 pins (black and white).

2.The grounding conductor (green or green & yellow) is to be open.

3.Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions (except OFF or O) of the ROTARY SWITCH.

4.The value should be over 2MΩ .