LG LM-1460C2L, LM-1560C2L, LM-1723C2L, LM-1963H2L, LM-2163C2L Service manual

Multi Type Room Air Conditioner

SERVICE MANUAL

MODEL: LM-1460C2L/M

LM-1460H2L/M LM-1560C2L/M LM-1723C2L/M LM-1963C2L/M LM-1963H2L/M LM-2163C2L/M LM-2163H2L/M LM-2063H3L/M LM-2064C3L/M LM-3063C3L/M LM-3063H3L/M

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

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

Dimensions................................................................................................................................. 17

Refrigeration Cycle Diagram..................................................................................................... 21

Wiring Diagram .......................................................................................................................... 25

Operation Details ....................................................................................................................... 28

Display Function........................................................................................................................ 35

Self-Diagnosis Function............................................................................................................ 35

Installation.................................................................................................................................. 36

Operation.................................................................................................................................... 50

Disassembly of the parts (Indoor Unit).................................................................................... 52

2-way, 3-way Valve..................................................................................................................... 54

Cycle Troubleshooting Guide ....................................................................................................58

Electronic Parts Troubleshooting Guide.................................................................................. 59

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

Schematic Diagram.................................................................................................................... 69

Exploded View & Replacement Parts List ............................................................................... 73

- 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 28°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 -

Product Specifications

15,000(3,780) 11,000(2,772)11,000(2,772)

2.4 1.2 1.2 1Ø, 220-240V, 50Hz

Indoor 7.0 7.0 Outdoor 42 Indoor 37+1 37+1 Outdoor 54+1

1,450 1,350 1,350

6.7 6.1 6.1

10.3 8.1 8.1 Indoor 7.5 7.5 Outdoor 27 Indoor 802 x 262 x 165 Outdoor 810 x 555 x 262 Indoor 7 Outdoor 46

1,510

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52) 3/8"(9.52)

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

1. LM-1460C2L/M

- 6 -

15,000(3,780) 11,000(2,772)11,000(2,772)

2.4 1.2 1.2 1Ø, 220-240V, 50Hz

Indoor 7.0 7.0 Outdoor 42 Indoor 37+1 37+1 Outdoor 54+1

1,450 1,350 1,350

6.7 6.1 6.1

10.3 8.1 8.1 Indoor 7.5 7.5 Outdoor 27 Indoor 802 x 262 x 165 Outdoor 810 x 555 x 262 Indoor 7 Outdoor 46

1,510

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52) 3/8"(9.52)

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

2. LM-1560C2L/M

- 7 -

3. LM-1460H2L/M

14,000(3,528) 10,000(2,520)

10,000(2,394)

15,000(3,780) 11,100(2,272)

11,000(2,272)

2.4 1.2 1.2 1Ø, 220-240V, 50Hz

Indoor 7.0 7.0 Outdoor 42 Indoor 37 +1 37 +1 Outdoor 54 +1

1,550 1,300 1,300 1,250 1,800 1,800

6.8 6.3 6.3

5.5 8.1 8.1

9.0 7.1 7.1

11.5 6.1 6.1 Indoor 17.9 17.9 Outdoor 27 Indoor 802 x 262 x 165 Outdoor 810 x 555 x 262 Indoor 10 Outdoor 46

1,600

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52) 3/8"(9.52)

O O

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 m3/min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w C.O.P. -

Motor Output W

Dimensions(W x H x D)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g 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)

- 8 -

17,000(4,280) 8,500(2,140) 8,500(2,140)

2.4 1.2 1.2 1Ø, 220V, 60Hz

Indoor 7.0 7.0 Outdoor 53 Indoor 37+1 37+1 Outdoor 54 + 1

1,750 1,600 1,600

8.5 7.5 7.5

9.7 5.3 5.3 Indoor 6 6 Outdoor 45 Indoor 802 x 262 x 165 Outdoor 810 x 555 x 262 Indoor 7 Outdoor 37

1,425

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52) 3/8"(9.52)

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

4. LM-1723C2L/M

- 9 -

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 37¡ 1 37¡ 1 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

1,350 x 2 1,350 1,350

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52)

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

5. LM-1963C2L/M

- 10 -

19,000(4,788) 9,500(2,394) 9,500(2,394) 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 36 + 1 36 + 1 Outdoor 53 +1

1,960 1,030 1,030 1,980 1,030 1,030

8.3 4.5 4.5

8.4 4.6 4.6

9.7 9.2 9.2

9.6 9.2 9.2 Indoor 7.5 7.5 Outdoor 61 Indoor 802 x 262 x 165 Outdoor 870 x 655 x 320 Indoor 7 Outdoor 63

1,030 1,030

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 3/8"(9.52)

O O

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 m

3

/min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w C.O.P. -

Motor Output W

Dimensions(W x H x D)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g 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)

6. LM-1963H2L/M

- 11 -

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

2.9 1.7 1.2 1Ø, 220-240V, 50Hz

Indoor 9.0 7.0 Outdoor 41 Indoor 39 + 1 37 + 1 Outdoor 54 + 1

2,150 1,260 1,080

9.1 5.3 4.8

9.7 9.5 8.3 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 58

1,150 850

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 1/2"(12.7) 3/8"(9.52)

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

7. LM-2163C2L/M

- 12 -

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

1,420 860

O

L.C.D Wireless Liquid 1/4"(6.35) Gas 1/2"(12.7) 3/8"(9.52)

O O

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 m3/min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w C.O.P. -

Motor Output W

Dimensions(W x H x D)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g 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)

7. LM-2163H2L/M

- 13 -

8,000(2,016)

8,500(2,142) 16,500(4,158) 12,000(3,004) 20,000(5,040)

8,500(2,016)

8,000(2,016) 16,500(4,158) 12,000(3,024) 20,500(5,166)

1.2 1.2 2.4 2.4 3.6 1Ø, 220-240V, 50Hz

7.0 7.0 – – – 41 – – –

34 34 – – –

56 980 1,200 2,050 1,430 2250 950 1,100 1,850 1,100 1,870

4.3 5.4 9.0 6.3 9.9

4.2 5.0 8.0 4.9 8.3

8.2 7.1 8.0 8.9 8.9

8.9 6.2 7.8 10.9 11

7.5 61

802

x 262 x 165

870 x 655 x 320

7 – – –

66

760 1,700 – – –

O

L.C.D Wireless 1/4"(6.35) – – – 3/8"(9.52) – – –

O O

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 m3/min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w C.O.P. -

Motor Output W

Dimensions(W x H x D)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g 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)

8. LM-2063H3L/M

- 14 -

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, 230V, 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

770 1,100 - - -

O

L.C.D Wireless Liquid 1/4"(6.35) - - Gas 3/8"(9.52) - - -

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

9. LM-2064C3L/M

- 15 -

12,000(2,772) 12,000(3,024) 23,000(5,796) 18,000(4,536) 29,000(7,308)

1.7 1.7 3.4 3.4 5.1 1Ø, 230V, 50Hz

Indoor 9.0 9.0 - - Outdoor 58 - - Indoor 37 + 1 35 + 1 - - Outdoor 59 + 1

1,240 1,700 2,900 1,800 2,900

5.5 7.5 12.7 8.4 12.9

8.73 6.67 7.83 9.22 9.62 Indoor 13 13 Outdoor 101.5 Indoor 888 x 287 x 170 Outdoor 870 x 800 x 320 Indoorn 10 10 - Outdoor 72

1,170 2,000 - - -

O

L.C.D Wireless Liquid 1/4"(6.35) - - Gas 1/2"(12.7) 3/8"(9.52) - - -

O O

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 m3/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)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g Airflow Direction Control(Up & Down) Remocon Type

Service Valve

Sleeping Operation Drain Hose

10. LM-3063C3L/M

- 16 -

11,000(2,772)

11,500(2,898) 22,500(5,670) 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 1.7 3.4 3.4 5.1 1Ø, 220-240V, 50Hz

9.0 9.0 – – – 58 – – –

38 36 – – –

60 1,250 1,580 2,630 1,750 2,800 1,150 1,750 2,700 1,470 2,620

5.5 7.2 12 8 12.8

5.2 8.0 13 6.7 11.3

8.8 7.3 8.6 9.7 10

9.6 6.9 8.5 10.7 3.05 13

101.5

888

x 287 x 170

870 x 800 x 320

10 – – –

83

1,160 1,900 – – –

O

L.C.D Wireless

1/4"(6.35) – – –

1/2"(12.7) 3/8"(9.52) – – –

O O

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 m3/min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w C.O.P. -

Motor Output W

Dimensions(W x H x D)

mm

Net. Weight kg

Refrigerant(R-22)(at 7.5m)

g 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)

11. LM-3063H3L/M

1. Indoor Unit

- 17 -

Dimensions

Installation plate

Right rear piping

Left rear piping

ø70mm

50mm

20mm

80mm

A

ø70mm

Center

ø70mm

Left rear piping Right rear piping

A

D

H

W

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 )

- 18 -

W

L6L7 L8 L9

L4

H

D

L1

L2

L3

L5

L10

Gas side 3-way valve

Liquid side 2-way valve

L13L12L11

2. Outdoor Unit

2-1 LM-1460C2L/M, LM-1560C2L/M, LM-1460H2L/M, LM-1723C2L/M

W mm 801 H mm 555 D mm 262 L1 mm 339 L2 mm 300 L3 mm 37 L4 mm 543.6 L5 mm 11.4 L6 mm 591 L7 mm 105 L8 mm 105 L9 mm 72.5 L10 mm 74.5 L11 mm 79

LM-1460C2L/M, LM-1560C2L/M LM-1460H2L/M, LM-1723C2L/M

MODEL

DIM

- 19 -

W

D

L1

L2

L9

L4

L3

H

L10

L8

Gas side 3-Way valve

Liquid side 2-Way valve

L7L5L6

2-2. LM-1963C2L/M, LM-2163C2L/M, LM-1963H2L/M, LM-2163H2L/M

W mm 870 H mm 655 D mm 320 L1 mm 370 L2 mm 25 L3 mm 630 L4 mm 25 L5 mm 546 L6 mm 160 L7 mm 160 L8 mm 64 L9 mm 76.5 L10 mm 50

LM-1963C2L/M, LM-2163C2L/M, LM-1963H2L/M, LM-2163H2L/M

MODEL

DIM

- 20 -

W

D

L1

L2

L9

L4

L3

H

L10

L8

Gas side 3-Way valve

Liquid side 2-Way valve

L7L5L6

2-3. LM-2064C3L/M, LM-2063H3L/M

LM-3063C3L/M, LM-3063H3L/M

W mm 870 870 H mm 655 800 D mm 320 320 L1 mm 370 370 L2 mm 25 25 L3 mm 630 775 L4 mm 25 25 L5 mm 546 546 L6 mm 160 160 L7 mm 160 160 L8 mm 64 64 L9 mm 76.5 76.5 L10 mm 50 50

LM-2064C3L/M, LM-2063H3L/M

LM-3063C3L/M, LM-3063H3L/M

MODEL

DIM

- 21 -

Refrigeration Cycle Diagram

Pipe Size (Diameter : inch)

Max.

piping length

(m)

Max.

piping elevation

(m)

Gas Liquid 3/8" 1/4" 10~15 5~7

ex)

Solenoid Valve Capillary Cooling & Deice Heating

Indoor Unit Outdoor Unit

Heat Exchanger

A-Unit

B-Unit

Heat Exchanger

2- WAY Valve

3- WAY Valve

COMPRESSOR

Indoor Unit Outdoor Unit

Heat Exchanger

4- WAY Valve-B

Comp

A-Unit

B-Unit

Heat Exchanger

2- WAY Valve

3- WAY Valve

1. LM-1460C2L/M, LM-1560C2L/M (Cooling only models)

2. LM-1460H2L/M (Cooling & Heating modes)

- 22 -

3. LM-1723C2L/M(Cooling only modes)

4. LM-1963C2L/M, LM-2163C2L/M(Cooling only models)

Pipe Size (Diameter : inch)

Max.

piping length

(m)

Max.

piping elevation

(m)

Gas Liquid 3/8" 1/4" 10~15 5~7

ex)

Solenoid Valve Capillary Cooling & Deice

Indoor Unit Outdoor Unit

Heat Exchanger

A-Unit

B-Unit

Heat Exchanger

2- WAY Valve

3- WAY Valve

COMP

A-UNIT B-UNIT

CAPILLARY TUBE

LIQUID SIDE

2-WAY VALVE

GAS SIDE

3-WAY VALVE

HEAT EXCHANGER (EVAPORATOR)

HEAT

EXCHANGER

(CONDENSER)

COMPRESSOR

B

COMPRESSOR

A

- 23 -

5. LM-1963H2L/M, LM-2163H2L/M(Cooling & Heating models)

6. LM-2064C3L/M, LM-3063C3L/M(Cooling only models)

Pipe Size (Diameter : inch)

Max.

piping length

(m)

Max.

piping elevation

(m)

Gas Liquid

3/8"(1/2") 1/4" 10~15 5~7

ex)

Solenoid Valve Capillary Cooling & Deice Heating

HEAT EXCHANGER

COOLING HEATING DEICE

HEAT

EXCHANGER

CAPILLARY TUBE

COMPRESSOR-B

COMPRESSOR-A

CAPILLARY TUBE

2-WAY

VALVE

4-WAY VALVE

B-UNITA-UNIT

3-WAY VALVE

4-WAY

VALVE

Indoor Unit Outdoor Unit

Heat Exchanger

A-Unit

Heat Exchanger

Comp-A

Comp-B

B-Unit

C-Unit

Heat Exchanger

2- WAY Valve

3- WAY Valve

2- WAY Valve

3- WAY Valve

- 24 -

7. LM-2063H3L/M, LM-3063H3L/M(Cooling & Heating models)

Pipe Size (Diameter : inch)

Max.

piping length

(m)

Max.

piping elevation

(m)

Gas Liquid

3/8"(1/2") 1/4" 10~15 5~7

ex)

Solenoid Valve Capillary Cooling & Deice Heating

Indoor Unit Outdoor Unit

Heat Exchanger

A-Unit

Heat Exchanger

Comp-A

B-Unit

C-Unit

Heat Exchanger

2- WAY Valve

3- WAY Valve

2- WAY Valve

3- WAY Valve

Comp-B

3854A20023C

INDOOR WIRING DIAGRAM

CN-DISP1

CN-U/D

FUSE

AC250V/T2A

CN-TH1

SSR

SH-CAPA.

BR

YL

OR

BK

ZNR

THERMISTOR

FORCED OPERATION

AUTO RESTART

REMOTE CONTROL

STEP

MOTOR

MAIN PCB

ASM

DISPLAY PCB ASM

TO OUTDOOR UNIT

PILLAR TERMINAL

BR

BL

YL

GN/YL

1(L) 2(N

)

3

RY-COMP.

4

3

CN-POWER CN-MOTOR

3854A20023D

INDOOR WIRING DIAGRAM

CN-DISP1

CN-U/D

FUSE

AC250V/T2A

CN-TH1

SSR

SH-CAPA.

BR

YL

OR

BK

CN-TAB1

ZNR

CN-MOTOR

THERMISTOR

FORCED OPERATION

AUTO RESTART

REMOTE CONTROL

STEP

MOTOR

MAIN PCB

ASM

DISPLAY PCB ASM

TO OUTDOOR UNIT

PILLAR TERMINAL

BR

BL

YL

GN/YL

1(L) 2(N

)

3

RY-COMP.

4

3

3854A20023B

INDOOR WIRING DIAGRAM

CN-DISP1

CN-U/D

FUSE

AC250V/T2A

CN-TH

SSR

SH-CAPA.

BR

YL

OR

BK

CN-POWER CN-FAN

ZNR

THERMISTOR

FORCED OPERATION

AUTO RESTART

REMOTE CONTROL

STEP

MOTOR

MAIN PCB

ASM

DISPLAY PCB ASM

TO OUTDOOR UNIT

PILLAR TERMINAL

BR

BL

YL

1(L) 2(N

)

3

- 25 -

Wiring Diagram(Indoor Unit)

1. LM-1460C2L/M, LM-1723C2L/M LM-1963C2L/M, LM-2163C2L/M(9K) LM-1560C2L/M

2. LM-2163C3L/M(12K)

3. LM-1460H2L/M, LM-1963H2L/M, LM-2163H2L/M, LM-2063H3L/M, LM-3063H3L/M, LM-3063C3L/M, LM-2064C3L/M

1(L)2(N)1(L)2(N)3(A)3(B

)

THERMISTOR

OUTDOOR WIRING DIAGRAM

MOTOR COMP

C S SC

R

CN-TH

5(B)

BL

YL

BL BL

RD

CAPA.

F C H

BR

BK

RD

BR

O.L.P

BR

CN-FAN

YL

BL BL

WH

MAIN A unit

3854A30076F

B unit

BK

T/BLOCK 1

T/BLOCK 2

TERMINAL BLOCK(6P)

BL

WH

BK

A

S/VBS/V

CN-S.V

RY-S.V2

RY-S.V1

7(A)

CN-TRANS

RY-HI

RY-COMP

CN-POWER

CN-COM

CN-COMP

FUSE(250V/3.15A)

MAIN P.C.B. ASM

1(L)2(N)1(L)2(N)3(A)3(B

)

THERMISTOR

OUTDOOR WIRING DIAGRAM

MOTOR COMP

C S SC

R

CN-TH

5(B)

BL

YL

BL BL

RD

CAPA.

F C H

BR

BK

RD

BR

O.L.P

BR

CN-FAN

YL

BL BL

RD BK

WH

3854A30076E

BK

T/BLOCK 1

T/BLOCK 2

TERMINAL BLOCK(6P)

BL RD

WH

BK

A

S/VBS/V

R/V

CN-S.V

RY-2 (S/V B)

RY-3 (R/V)

RY-1 (S/V B)

7(A)

CN-TRANS

RY-HI

RY-COMP

CN-POWER

CN-COM

CN-COMP

FUSE(250V/3.15A)

MAIN P.C.B. ASM

MAIN A unit B unit

BK

RD

R

C

O.L.P

BR

RD

WH

A-UNIT

TO INDOOR UNIT

OUTDOOR WIRING DIAGRAM 3854A20023A

B-UNIT MAIN POWER

1(L) 2(N) 3 3 2(N) 1(L) 1(L) 2(N)

BK RD BL

BL

RD

POWER RELAY

OR

MOTOR

YLBK

O.L.P

T/B 3

T/B 4

T/B 1

T/B 2

C

R

F C H

S WH

BL

BR

BK

COMP

"B"

CAPACITOR

NO

NC

C

3

6

1 7

8

BK

WH

BK

TERMINAL

BLOCK

GN/YL

S

COMP

"A"

YL

CAPACITOR

1(L)2(N)1(L)2(N)3(A)3(B

)

THERMISTOR

OUTDOOR WIRING DIAGRAM

MOTOR COMP

C S SC

R

CN-TH

5(B)

BL

YL

BL BLBR

RD

CAPA.

F C H

BK

RD

BR

CN-FAN

YL

BL BL BL

WH

3854A30076D

BK

T/BLOCK 1

T/BLOCK 2

TERMINAL BLOCK(6P)

BL BK

WH

BK

A

S/VBS/VBPS/V

CN-S.V

CN-BYPASS

RY-S.V1

RY-S.V2

RY-BP1

7(A)

CN-TRANS

RY-HI

RY-COMP

CN-POWER

CN-COM

CN-COMP

FUSE(250V/3.15A)

MAIN P.C.B. ASM

MAIN A unit B unit

- 26 -

Wiring Diagram(Outdoor Unit)

1. LM-1460C2L/M, LM-1560C2L/M 2. LM-1460H2L/M

3. LM-1723C2L/M 4. LM-1963C2L/M

OUTDOOR WIRING DIAGRAM

3854AP3911C

MAIN PCB ASSY

TO INDOOR UNIT

A-UNIT B-UNIT

MAIN POWER

TERMINAL BLOCK

CN-TRANS

BK BK

BR

BL

BL YL

BK BK

BK

OR

H C F

YL

BK

"A"

COMP

BLBKRD

RD

S R

C

OLP

C

R

BR

BK

YL

S

BK

T/B2

T/B1

T/B3

GN/YL

MOTOR

BK

7

4 33 11 3 2 1

5 3 1 3 1

BK

WH

WH BK

GN/YL

WH

CN-COM

CN-TH1 CN-TH2

CN-POWER

CN-SV

RY9

RY3

RY2

RY1

RY10

CN-FANCN-COMP

CAPA.

FUSE T3.15A

THERMISTOR

TRANSFORMER

OLP

"B"

COMP

1(L) 1(L)2(N) 1(L) 2(N)2(N)

3 3

A 4-WAY

B 4-WAY

OPTION

MOTOR

B/P2 S.V

OUTDOOR WIRING DIAGRAM

3854A20023E

MAIN PCB ASSY

TO INDOOR UNIT

A-UNIT B-UNIT C-UNIT

MAIN

POWER

TERMINAL BLOCK

CN-TRANS

BK

BR BL

BK BK

BK

"A"

COMP

BL

BK

BR WH RD BL YL

BL BL BL BK BK

RD

S R

C

OLP

C

R

BR

BK

YL

S

BK

YL

OR

OPTION

BK(Hi)

BK

T/B2 T/B3

OPTION

T/B1

T/B4

7

1 3

5 3 1 3 1

BK

WH

BK

WH

RD WH BK

GN/YL

CN-COM

CN-TH1 CN-TH2

CN-POWER

RY8

RY9

RY3

RY2

RY1

CN-FAN CN-BYPASSCN-COMP

CAPA.

FUSE T3.15A

THERMISTOR

TRANSFORMER

OLP

OPTION

2 1

RY10

RY7

RY5

RY4

"B"

COMP

1(L) 1(L)2(N) 1(L) 2(N)2(N)

3 3 3

H C F

B-S.V

C-S.V

A 4-WAY

B 4-WAY

4 3 2 1

CN-SV

BK

T/B1BK

CAPA.

RY1

RY2

RY3

RY7

RY8

CN-TH2

CN-SV

CN-TH1

FCH

3 131

BK

BL

BK

T/B2

BL

BL BL

WH

BR BL

RD WH

GN/YL

TERMINAL

BLOCK

WH

BK

WH BK

BK

RD

BK

BR YL

YL

GN/YL

OR

RD

SSR

R

C

BK

RD BL

CN

-

FAN

CN-COMP

BK

"B"

COMP

"A"

COMP

MOTOR

34

7 5 3 1 13

2 1

FUSE T3.15A

CN-POWERCN-COM

MAIN PCB ASSY

CN-TRANS

TRANS-

FORMER

B S.V

C S.V

1(L) 2(N) 3 3 2(N) 1(L) 3 1(L) 2(N)

A-UNIT B-UNIT

TO INDOOR UNIT

C-UNIT MAIN

POWER

OUTDOOR WIRING DIAGRAM

3854A30076G

T/B3

OLPOLP

BK

T/B1BK

CAPA.

OLP

RY1

RY2

RY3

RY7

RY8

CN-TH2

CN-SV

CN-TH1

FCH

1 3 131

BK

BL

BK

T/B2

BL

BL BL

WH

BR BL

RD WH

GN/YL

TERMINAL

BLOCK

WH

BK

WH BK

BK

RD

BK

BR YL

YL

OR

RD

SSR

R

C

BK

BL RD

CN-FAN

CN-COMP

BK

"A"

COMP

"B"

COMP

MOTOR

34

7 5 3 1

2 1

FUSE T3.15A

CN-POWERCN-COM

MAIN PCB ASSY

CN-TRANS

TRANSFORMER

B S.V

C S.V

1(L) 2(N) 3 3 2(N) 1(L) 3 1(L) 2(N)

A-UNIT B-UNIT

TO INDOOR UNIT

C-UNIT MAIN

POWER

OUTDOOR WIRING DIAGRAM

3854A20023F

T/B3

- 27 -

5. LM-1963H2L/M, LM-2163H2L/M 6. LM-2063H3L/M, LM-3063H3L/M

7. LM-2064C3L/M 8. LM-3063C3L/M

Operation Details

1. MAIN UNIT FUNCTION

• DISPLAY

1) C/O Model Operation Indicator

• On while in appliance operation, off while in appliance pause

• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)

Sleep Timer Indicator

• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause

Timer Indicator

• On while in timer mode (on/off), off when timer mode is completed or canceled.

Comp. Running Incidator

• While in appliance operation, on while in outdoor unit compressor running, off while in compressor off

2) H/P Model Operation Indicator

• On while in appliance operation, off while in appliance pause

• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)

Sleep Timer Indicator

• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause

Timer Indicator

• On while in timer mode (on/off), off when timer mode is completed or canceled

Defrost Indicator

• Off except when hot start during heating mode operation or while in defrost control

■ Cooling Mode Operation

• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop.

• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp ➲ Setting Temp+0.5°C Compressor OFF Temp ➲ Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote control. While in compressor not running, operating with the low airflow speed regardless of the setting.

■ Healthy Dehumidification Mode

• When the dehumidification operation input by the remote control is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature.

26°C ≤ Intake Air Temp ➲ 25°C 24°C ≤ Intake Intake Air Temp<26°C ➲ Intake Air Temp-1°C 18°C ≤ Intake Intake Air Temp<24°C ➲ Intake Air Temp-0.5°C Intake Air Temp<18°C ➲ 18°C

-28-

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification operation and 4-min compressor off repeat.

Compressor ON Temp. ➲ Setting Temp+0.5°C Compressor OFF Temp. ➲ Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■ Heating Mode Operation(H/P model)

• When the intake air temp reaches +3°…above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Compressor ON Temp. ➲ Setting Temp. Compressor OFF Temp. ➲ Setting Temp.+3°C

• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 20°C, when above 28°C , it operates with the low or setting airflow speed. When the indoor pipe temp is between 20°C and 28°C, it operates with Super-Low(while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C, when above 35°C , it operates with the low airflow speed.

• If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, the outdoor fan is turned on/off according to the indoor pipe temp.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■ Defrost Control(H/P model)

• Defrost operation is controlled by timer and sensing temperature of outdoor pipe.

• The first defrost starts only when the outdoor pipe temperature falls below -6°C after 60 minutes passed from starting of heating operation and more than 10 minutes operation of compressor.

• Defrost ends after 12 minutes passed from starting of defrost operation or after the outdoor fan operates within max. 2 minutes 30 seconds when the outdoor pipe temperature rises over 12°C even it before 12 minutes.

• The second defrost starts only when the outdoor pipe temperature falls below -6°C after 60 minutes passed from ending of the first defrost and more than 10 minutes operation of compressor.

■ Cooling overload(except : LM-1963C2L/M, LM-1723C2L/M, LM-2163C2L/M, LM-1460C2L/M)

• Control indoor fan by sensing outdoor pipe temperature.

• One step down from setting fan speed if pipe temperature is oven 50°C and if below 45°C, operate on setting temperature.

■ Heating overload(H/P models)

• Outdoor fan ON/OFF by sensing outdoor pipe temperature.

• Outdoor fan is OFF if pipe temperature is over 6.5°C and outdoor fan is ON if pipe temperature is below 0°C.

• Outdoor fan is off if any one part is heating overload condition.

-29-

-30-

■ Fuzzy Operation (C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp ➲ Setting Temp + 0.5°C Compressor OFF Temp ➲ Setting Temp + 0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp ➲ 25°C 24°C ≤ Intake Air Temp < 26°C ➲ Intake Air Temp + 1°C 22°C ≤ Intake Air Temp < 24°C ➲ Intake Air Temp + 0.5°C 18°C ≤ Intake Air Temp < 22°C ➲ Intake Air Temp Intake Air Temp<18°C ➲ 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

■ Fuzzy Operation (H/P Model)

• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C ≤ Inatake Air Temp ➲ Fuzzy Operation for Cooling 21°C ≤ Inatake Air Temp<24°C ➲ Fuzzy Operation for Dehumidification Inatake Air Temp<21°C ➲ Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp ➲ Setting Temp +0.5°C Compressor OFF Temp ➲ Setting Temp + 0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C≤ Intake Air Temp ➲ 25°C 24°C≤ Intake Air Temp<26°C ➲ Intake Air Temp + 1°C 22°C≤ Intake Air Temp<24°C ➲ Intake Air Temp + 0.5°C 18°C≤ Intake Air Temp<22°C ➲ Intake Air Temp Intake Air Temp<18°C ➲ 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.