LG LP-E5020CL Manuale utente

Package

Air Conditioner

SERVICE MANUAL

MODEL: LP-E5020CL

LP-E5022CL/CA/HL/HA

LP-E5082CL/CA/HL/HA/ZL/ZA

LP-E5092CL/CA/HL/HA

LP-E50B0CL/CA/HL/HA

1. Preface ............................................................................................................................................ 3

2. Dimensions......................................................................................................................................8

3. Refrigerant Cycle Diagram .............................................................................................................9

4. Wiring Diagram..............................................................................................................................10

5. Operation Details...........................................................................................................................18

6. Installation .....................................................................................................................................24

7. Operating .......................................................................................................................................40

8. 3-Way Valve....................................................................................................................................43

9. Troubleshootig Guide ...................................................................................................................51

10. Electronic Control Device.............................................................................................................66

11. Schematic Diagram.......................................................................................................................68

12. Exploded View & Replacement Parts List...................................................................................70

– 2 –

CONTENTS

This service manual provides various service information, containing the mechanical and electrical parts and etc.

This package air conditioner was manufactured and assembled under the 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

¤When servicing the unit, set the main SWITCH to OFF and remove the POWER SUPPLY cables.

¤Ł Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or

damaged by the short circuit.

¤Ø After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock

hazards.

1.2 Features

¤Design for cooling and heating

¤ŁSuper energy efficiency

¤ØMicom Control

¤ŒWhisper quiet operation

¤ºWireless remote control

¤Removable air filter

¤3 minute delay circuit

¤7 hour timer

¤3 step speeds for cooling/heating

¤Plasma air purifying system

¤æAuto Restart

– 3 –

1. PREFACE

POWER SOURCE (ø, V, Hz)

COOLING CAPACITY Btu/h

INPUT W

CURRENT A

HEATING CAPACITY Btu/h

(W)

INPUT W

(W)

CURRENT A

(A)

MAKER

TYPE

COMPRESSOR MODEL

INPUT W

CURRENT A

CAPACITY Kcal/h

NOISE INDOOR dB(A)

LEVEL(1m) OUTDOOR

AIR INDOOR CMM

VOLUME OUTDOOR

REFRIGERANT R-22 Kg

HEAT INDOOR R/C/FPI

EXCHANGER OUTDOOR R/C/FPI

FAN INDOOR TYPE

OUTDOOR

ROOM TEMPERATURE CONTROL

NET INDOOR Kg

WEIGHT OUTDOOR

DIMENSIONS INDOOR mm

(W × H × D) OUTDOOR

SVC LIQUID Inch

VALVE GAS (mm)

3.380 - 415,50 3,380 - 415,50 1,200,60 1,220,60

44,000 44,000 44,000 44,000

12,896 12,896 12896 12,896

3,600 3,600 3,600 5500

6 6 19 25

–48,000 – 48,000

+(3,000)

–14069 – 14,069

+(3,000)

–3,500 – 4900

+(3,000)

–5.5 – 24

+(13.5)

Tecumseh Tecumseh Copeland Copeland

Recipro Recipro Recipro Recipro

AVB5558EXG AVB5558EXG CR42K6-PFV CRMQ-0400-PFV

4,340 4,340 3,860 5,370

6.9 6.9 17.8 25.2

11,620 11,620 10,559 12,928

53 53 53 53

58 58 58 58

35 35 35 35

104 104 104 104

2.8 3.2 3.5 3.9

3/28/17 3/28/17 3/28/17 3/28/17

2/44/16 2/44/18 2/44/16 2/44/17

SIROCO SIROCO SIROCO SIROCO

PROPELLER PROPELLER PROPELLER PROPELLER

MICOM CONTROL MICOM CONTROL MICOM COTROL MICOM CONTROL

62 62 62 62

90 90 90 90

590 ×1,810 ×440 590 ×1,810 ×440 590 ×1,810 ×440 590 ×1,800 ×440

1,000 ×965 ×370 1,000 ×965 ×370 900 ×1,225 ×370 900 ×1,225 ×370

3/8 3/8 3/8 3/8

3/4 3/4 3/4 3/4

1.3 Product Specifications

– 4 –

MODEL

LP-E5082CL/CA LP-E5082HL/HA

LP-E5082ZL/ZA LP-E5020CL

LP-E5022CA LP-E5022HL/HA

(Including Electiric

heater)

– 5 –

POWER SOURCE (ø, V, Hz)

COOLING CAPACITY Btu/h

INPUT W

CURRENT A

HEATING CAPACITY Btu/h

INPUT W

CURRENT A

MAKER

TYPE

COMPRESSOR MODEL

INPUT W

CURRENT A

CAPACITY Kcal/h

NOISE INDOOR dB(A)

LEVEL(1m) OUTDOOR

AIR INDOOR CMM

VOLUME OUTDOOR

REFRIGERANT R-22 Kg

HEAT INDOOR R/C/FPI

EXCHANGER OUTDOOR R/C/FPI

FAN INDOOR TYPE

OUTDOOR

ROOM TEMPERATURE CONTROL

NET INDOOR Kg

WEIGHT OUTDOOR

DIMENSIONS INDOOR mm

(W ¥ H ¥ D) OUTDOOR

SVC LIQUID Inch

VALVE GAS (mm)

3,220,60 3,220,60 3,380,60 3,380,60

44,000 44,000 44,000 44,000

12,896 12,896 12,896 12,896

6,000 6,000 4,600 4,600

10 10 8.2 8.2

– 48,000 – 48,000

– 14,069 – 14,069

– 5,000 – 4,500

– 9 – 8

Copeland Copeland Copeland Copeland

Recipro Recipro Recipro Recipro

CRNQ-0501-ES8 CRNQ-0501-ES8 CRNQ-0501-ES8 CRNQ-0501-ES8

6,210 6,210 6,210 6,210

19.0/11.0 19.0/11.0 19.0/11.0 19.0/11.0

61,500 61,500 61,500 61,500

53 53 53 53

58 58 58 58

35 35 35 35

104 104 104 104

3.5 3.9 4 4.2

3/28/17 3/28/17 3/28/17 3/28/17

2/44/16 2/44/18 2/44/16 2/44/18

SIROCO SIROCO SIROCO SIROCO

PROPELLER PROPELLER PROPELLER PROPELLER

MICOM CONTROL MICOM CONTROL MICOM CONTROL MICOM CONTROL

62 62 62 62

90 90 90 90

590 ×1,800 ×440 590 ×1,800 ×440 590 ×1,800 ×440 590 ×1,800 ×440

900 ×1225 ×370 900 ×1225 ×370 900 ×1225 ×370 900 ×1225 ×370

3/8 3/8 3/8 3/8

3/4 3/4 3/4 3/4

MODEL

LP-E50B2CL/CA LP-E50B2HL/HA

LP-E50B2ZL/ZA LP-E5090CL

LP-E5092CA LP-E5092HL/HA

– 6 –

1.4 Functions

Indoor Unit

Power Switch ON/OFF

Operation Mode Control

Sensing the room temperature

Controlling the room temperature

Starting Current Control

Sensing Heat Exchanger Temperature

Timer Delay Safety Control

Indoor Fan Speed Control

Operation Indication lamps

Temperature Setting

Airflow Direction Control

Room temperature Display

Timer Control

Sensing Discharge Air Temperature

• Cooling, Soft Dry, Auto, Fan ¢¡Cooling Model •

Cooling, Heating, Soft Dry, Fan ¢¡Heat Pump Model

• Room temperature sensor (Thermistor)

• Maintains the room temperature in accordance with the setting temperature.

• Indoor fan is delayed for 3 sec at the starting.

• Heat exchanger temperature sensor (Thermistor)

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low

• Up : up to 30°C

• Down : down to 16°C

• Airflow direction Automatic and Manual control

• Low, 10° ~ 35°C, Hi

• Off Timer (1, 2, 3....7 hour)

• Discharge temperature sensor <Thermistor>

• Apply Heat Pump Model Only.

– 7 –

Remote Control

Operation ON/OFF

Operation Mode Selection

• Cooling, Soft Dry, Auto, Fan ¤I Cooling Only Model

• Cooling, Heating, Soft Dry, Fan, ¤I E/heater Heat Pump Model

Fan Speed Selection

Setting the temperature

Timer Control

Airflow Direction Control

• High, Medium, Low

• Up or Down

• Off Timer(1, 2, 3...7 hour)

• Airflow direction Auto-Swing and Manual control

Outdoor Unit

Deice Control

Outdoor Fan Speed Control

Sensing Heat Exchanger Temperature

• De-ice PCB

• One speed

• Heat exchanger temperature sensor (Thermistor)

118

37.3

58.2

959

605.5

440

590

540

1513 243

548899

370

125

210

290 1220

460

505

90130 640

900

1) Indoor Unit

2) Outdoor Unit

– 8 –

2. DIMENSIONS

¤Air Outlet Vent

¤ŁAir Inlet Vent ¤ØWindow display

¤ŒEarth Screw

¤Air Outlet Vent

¤ŁLiquid Side SVC Valve

¤ØGas Side SVC Valve

¤ŒControl Box

¤ºEarth Screw

3.1

Cooling Cycle

– 9 –

3. REFRIGERANT CYCLE DIAGRAM

INDOOR UNIT

LIQUID SIDE

CAPILLARY

TUBE

HEAT

EXCHANGER

ACCUMULATOR MUFFLER

COMPRESSOR

HEAT

EXCHANGER

CAPILLARY

TUBE

HEAT

EXCHANGER

HEAT

EXCHANGER

3-WAY VALVE

GAS SIDE

3-WAY VALVE

LIQUID SIDE CHECK VALVE

CAPILLARY TUBE

4-WAY VALVE

MUFFLER

COMPRESSOR

COOLING

HEATLNG

DE-ICE

ACCUMULATOR

3-WAY VALVE

GAS SIDE

3-WAY VALVE

OUTDOOR UNIT

INDOOR UNIT OUTDOOR UNIT

3.2

Cooling and Heating Cycle

Indoor & Outdoor Unit Circuit Diagram

(1) LP-E5082CL/CA

– 10 –

4. WIRING DIAGRAM

INDOOR UNIT

POWER

RELAY

NOTE

GN/YL

BLUE

BLACK

BROWN

ORANGE

RED

WHITE

YELLOW

GREEN/YELLOW

TERMINAL

BLCOCK BR

BK BK

OROR BK

OR BK

FAN

MOTOR FAN

MOTOR

COMP.

T1T2T3

OR BK

YLYL

CAPACITOR CAPACITOR

TERMINAL

BLOCK

TO INDOOR UNIT

WHRD

FUSE

(250V 5A)

FUSE

(250V 5A)

POWER SUPPLY

R S T N

OUTDOOR ELECTRIC

CIRCUIT

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