LG LM-1966C2L/M Manual de usuario

Multi Type Room

Air Conditioner

SERVICE MANUAL

MODELS: LM-1966C2L/M

LM-1966H2L/M

LM-2166H2L/M

LM-2065C3L/M

LM-3065H3L/M

Functions...................................................................................................................................... 3

Product Specifications................................................................................................................ 5

Dimensions................................................................................................................................. 10

Refrigeration Cycle Diagram..................................................................................................... 12

Wiring Diagram .......................................................................................................................... 15

Operation Details ....................................................................................................................... 17

Display Function........................................................................................................................ 24

Self-Diagnosis Function............................................................................................................ 24

Installation.................................................................................................................................. 25

Operation.................................................................................................................................... 39

Disassembly of the parts (Indoor Unit).................................................................................... 41

2-way, 3-way Valve ..................................................................................................................... 43

Cycle Troubleshooting Guide ....................................................................................................47

Electronic Parts Troubleshooting Guide.................................................................................. 48

Electronic Control Device ......................................................................................................... 55

Schematic Diagram.................................................................................................................... 58

Exploded View and Replacement Parts List............................................................................ 63

- 2 -

Contents

- 3 -

Functions

• Room temperature sensor. (THERMISTOR)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 seconds at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low, Chaos

--- Lights up in operation

--- Lights up in Sleep Mode

--- Lights up in Timer Mode

--- Lights up in Deice Mode(for Heat pump model)

--- Lights up in Compressor operation(for Cooling model)

• Intermittent operation of fan at low speed.

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

• The fan is switched to intermittent or irregular operation

•

The fan speed is automatically switched from high to low speed.

• The louver can be set at the desired position or swing

up and down automatically.

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

OUT

DOOR

Health Dehumidification Operation

• Both the indoor and outdoor fan

stops during deicing.

• Hot start after deice ends.

• The indoor fan stops until the

evaporator piping temperature will be

reached at 26°C.

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic

Airflow Direction Control

Deice (defrost) control (Heating)

Hot-start Control (Heating)

- 4 -

Remote Controller

JET COOL

Healthy Dehumidification Operation Mode.

( )

Operation Mode Selection

(Cooling

model only) (Heating

model only)

Cooling Operation Mode.( ) Heating Operation Mode.( )

Auto Operation Mode.( )

Sleep Operation

Fan Operation Mode

Room, Temperature Display

Setting the Time or Timer

Airflow Direction Control

Operation ON/OFF

Temperature Setting

TEMPERATURE LOWHIGH

Timer Selection

ON OFF

Timer Setting

SET

Timer Cancel

CANCEL

Reset

Fan Speed Selection

(Low) (Med) (High) (CHAOS)

: (High: 39°C LOW : 11°C)

Down to 18°C

Up to 30°C

Cooling

: OFF, ON, OFF ON

: Cancel Sleep Mode, Timer ON or Timer OFF

: 1, 2, 3, 4, 5, 6, 7, Off Timer

: Fan Operates without cooling or heating.

Down to 16°C

Up to 30°C

Heating

- 5 -

19,000(4,788) 9,500(2,394) 9,500(2,394)

2.4 1.2 1.2

1Ø, 220-240V, 50Hz

Indoor 7.0 7.0

Outdoor 41

Indoor 34 1341

Outdoor 55 1

1,930 1,030 1,030

8.4 4.6 4.6

9.8 9.2 9.2

Indoor 7.5 7.5

Outdoor 61

Indoor 802 x 262x 165

Outdoor 870 x 655 x 320

Indoor 7

Outdoor 63

- 710 620

L.C.D Wireless

Liquid 1/4"(6.35)

Gas 3/8"(9.52)

Operation A-Unit Only

A-Unit + B-Unit B-Unit Only

Unit

Item

Cooling Capacity Btu/h(kcal/h)

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

Runnig Current A

E.E.R. Btu/h.w

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

1. LM-1966C2L/M

Product Specifications

- 6 -

19,000(4,788) 9,500(2,394) 9,500(2,394)

2.4 1.2 1.2

1Ø, 220-240V, 50Hz

Indoor 7.0 7.0

Outdoor 53

Indoor 34 + 1 34 + 1

Outdoor 54 +1

2,000 1,060 1,060

1,950 1,030 1,030

8.8 4.7 4.7

8.3 4.5 4.5

9.5 9.0 9.0

2.8 2.7 2.7

Indoor 7.5 7.5

Outdoor 82.9

Indoor 802 x 262 x 165

Outdoor 870 x 655 x 320

Indoor 7

Outdoor 63

670 670

L.C.D Wireless

Liquid 1/4"(6.35)

Gas 3/8"(9.52)

Operation A-Unit Only

A-Unit + B-Unit B-Unit Only

Unit

Item

Cooling Capacity

Heating Capacity

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

E.E.R. Btu/h.w

C.O.P. -

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

Cooling

Heating

Cooling

Heating

Cooling

Heating

Runnig

Current

Btu/h(kcal/h)

2. LM-1966H2L/M

- 7 -

21,000(5,292) 12,000(3,024) 9,000(2,268)

22,000(5,544) 12,500(3,150) 9,500(2,394)

2.9 1.7 1.2

1Ø, 220-240V, 50Hz

Indoor 9.0 7.0

Outdoor 53

Indoor 39 + 1 37 + 1

Outdoor 54 + 1

2,200 1,280 1,080

2,100 1,240 1,050

9.5 5.5 4.8

9.2 5.4 4.7

9.5 9.4 8.3

3.0 2.9 2.6

Indoor 13 7.5

Outdoor 61

Indoor 900 x 280 x 178 / 802 x 262 x 165

Outdoor 870 x 655 x 320

Indoor 10 / 7

Outdoor 62

860 770

L.C.D Wireless

Liquid 1/4"(6.35)

Gas 1/2"(12.7) 3/8"(9.52)

Operation A-Unit OnlyA-Unit + B-Unit B-Unit Only

Unit

Item

Cooling Capacity

Heating Capacity

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

E.E.R. Btu/h.w

C.O.P. -

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

Cooling

Heating

Cooling

Heating

Cooling

Heating

Runnig

Current

Btu/h(kcal/h)

3. LM-2166H2L/M

- 8 -

8,500(2,142) 9,000(2,268) 16,800(4,233) 11,600(2,923)

20,500(5,166)

1.2 1.2 2.4 2.4 3.6

1Ø, 220-240V, 50Hz

Indoor 7.0 7.0 - - -

Outdoor 53 - - -

Indoor 34 + 1 34 + 1 - - -

Outdoor 55 + 1

960 1,050 1,850 1,120 1,950

4.1 4.5 8.0 5.0 8.4

8.85 8.57 9.08 10.36 10.51

Indoor 7.5

Outdoor 61

Indoor 802 x 262 x 165

Outdoor 870 x 655 x 320

Indoor 7 - - -

Outdoor 61

540 700 - - -

L.C.D Wireless

Liquid 1/4"(6.35) - - -

Gas 3/8"(9.52) - - -

Operation A-Unit

B or C-Unit

A+B or C B+C A+B+C

Unit

Item

Cooling Capacity Btu/h(kcal/h)

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

Runnig Current A

E.E.R. Btu/h.w

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

3. LM-2065C3L/M

- 9 -

11,000(2,772)

10,000(2,520) 21,000(5,292) 17,000(4,284) 28,000(7,056)

11,000(2,772)

12,000(3,024) 23,000(5,796) 17,000(4,284) 28,000(3,056)

1.7 1.2 2.9 2.4 4.1

1Ø, 220-240V, 50Hz

9.0 7.0 –––

58 –––

34+1 31+1 –––

1,150 1,530 2,600 1,700 2,800

1,030 1,950 2,700 1,500 2,400

5.1 7.0 11.5 7.7 12.3

4.5 9.0 13 6.8 10.8

9.5 6.5 8.1 10 10

3.1 1.8 2.5 3.3 3.4

13 / 7.5

82.9

900

x 280 x 178 /

802

x 262 x 165

870 x 800 x 320

97–––

770 1,250 –––

L.C.D Wireless

1/4"(6.35) –––

1/2"(12.7) 3/8"(9.52) –––

Operation A-Unit

B or C-Unit A+B or C

B+C A+B+C

Unit

Item

Cooling Capacity

Heating Capacity

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

E.E.R. Btu/h.w

C.O.P. -

Motor Output W

Dimensions(W x H x D)

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

Airflow Direction Control(Up & Down)

Remocon Type

Service Valve

Sleeping Operation

Drain Hose

Cooling

Heating

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Liquid

Gas

Cooling

Heating

Cooling

Heating

Runnig

Current

Btu/h(kcal/h)

4. LM-3065H3L/M

1. Indoor Unit

- 10 -

Dimensions

Installation plate

Right rear piping

Left rear piping

ø70mm ø70mm

50mm

20mm

80mm

ø70mm

Center

ø70mm

Left rear piping Right rear piping

Tubing hole cover

W mm 802 888

H mm 262 287

D mm 165 170

6K, 7K, 8K, 9K Btu Series 9K, 10K, 12K Btu Series

MODEL

DIM

( 6K, 7K, 8K, 9K )

( 9K, 10K, 12K )

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