Ceiling Concealed Duct –Type Air ConditionerSVC MANUAL(Exploded View)MODEL : ABNH246HLAD [UB24 NHD] ABNH306GLAD [UB30 NGD] ABNH366GLAD [UB36 NGD] ABNH426RLAD [UB42 NGD] ABNH486RLAD [UB48 NGD] ABNH606RLAD [UB60 NGD]

CAUTIONBefore Servicing the unit, read the safety precautions in General SVC manual.Only for authorized service personnel.

Internal Use Only

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- 2 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

1. SpecificationIndoor

Air Circulation H/M/L CMM (CFM)External Static Pressure mmAqSetting temperature range(cool/heat) ˚CFan motor Output WFan Model

No. of PolesInput WRunning Current ACapacitor Ø F/VacTypeNo. Used / Diameter EA/inch (mm)

Noise Level (Sound Press, 1.5m) H/M/L dB (A)

Temperature controllerCoil Tube Size (OD) inch (mm)

Fin per inchNo. of Rows & Column

Dehumidification Rate l/hDimensions (W*H*D) inch (mm)Net Weight Kg (lbs)Piping Connection Liquid inch (mm)

Gas inch (mm)Drain hose (OD Ø) inch (mm)

Packing Dimension (W*H*D) inch (mm)Stuffing Quantity Without S/Parts 20/40ft

Indoor Unit Type Ceiling Concealed DuctModel ABNH246HLAD ABNH306GLAD ABNH366GLAD

Notes:1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 27°C(80.6°F) DB /19°C(66.2°F) WB- Outdoor Temperature 35°C(95°F) DB /24°C(75.2°F) WB- Interconnecting Piping Length 7.5m- Level Difference of Zero.

Heating: - Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB- Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB- Interconnecting Piping Length 7.5 m- Level Difference of Zero.

2. Capacities are Net Capacities.3. Due to our policy of innovation some specifications may be changed without notification.

18/16.5/14(636/583/494) 26.5/23.20(936/812/706) 32/29/26(1130/1024/918)8 10 10

18~30 / 16~30 18~30 / 16~30 18~30 / 16~30118 211 272

IC-13450LG13C IC-13450LG13J IC-13450LG13A4 4 4

180 300 3230.92 1.34 1.426/370 6/370 6/370

Sirocco Fan Sirocco Fan Sirocco Fan1/6.97(177) 1/6.97(177) 1/6.97(177)

38/36/34 40/38/35 42/39/36

Thermistor Thermistor Thermistor0.275(7) 0.275(7) 0.275(7)

21 21 213R,10C 3R,12C 3R,10C

2.5 3.3 434.6*10.2*17.7(880*260*450) 46.5*11.7*17.7(1180*298*450) 46.5*11.7*17.7(1180*298*450)

35(77.2) 38(84) 38(84)9.52(3/8) 9.52(3/8) 9.52(3/8)15.88(5/8) 15.88(5/8) 15.88(5/8)

25.4 25.4 25.444.7*13.4*22.0(1135*340*565) 58.5*14.8*22.9(1435*375*582) 58.5*14.8*22.9(1435*375*582)

120/252 95/191 95/191

- 3 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Air Circulation H/M/L CMM (CFM)External Static Pressure mmAqSetting temperature range(cool/heat) ˚CFan motor Output WFan Model

No. of PolesInput WRunning Current ACapacitor Ø F/VacTypeNo. Used / Diameter EA/inch (mm)

Noise Level (Sound Press, 1.5m) H/M/L dB (A)

Temperature controllerCoil Tube Size (OD) inch (mm)

Fin per inchNo. of Rows & Column

Dehumidification Rate l/hDimensions (W*H*D) inch (mm)Net Weight Kg (lbs)Piping Connection Liquid inch (mm)

Gas inch (mm)Drain hose (OD Ø) inch (mm)

Packing Dimension (W*H*D) inch (mm)Stuffing Quantity Without S/Parts 20/40ft

Indoor Unit Type Ceiling Concealed DuctModel ABNH426RLAD ABNH486RLAD ABNH606RLAD

40/35/30(1413/1236/1059) 40/35/30(1413/1236/1059) 50/45/40(1766/1413/1236)15 15 15

18~30 / 16~30 18~30 / 16~30 18~30 / 16~30431 431 431

Y002276-1 Y002276-1 Y002276-14 4 4

818 818 8183.65 3.65 3.65

15/450 15/450 15/450Sirocco Fan Sirocco Fan Sirocco Fan2/9.1(230) 2/9.1(230) 2/9.1(230)

42/40/38 44/42/40 46/44/42

Thermistor Thermistor Thermistor0.375(9.52) 0.375(9.52) 0.375(9.52)

19 19 193R,13C 3R,13C 4R,13C

5 6 6.548.4*150*23.2(1230*380*590) 48.4*150*23.2(1230*380*590) 48.4*150*23.2(1230*380*590)

60(132) 60(132) 60(132)9.52(3/8) 9.52(3/8) 9.52(3/8)15.88(5/8) 15.88(5/8) 15.88(5/8)

25.4 25.4 25.456.9*17.9*27.6(1445*455*700) 56.9*17.9*27.6(1445*455*700) 56.9*17.9*27.6(1445*455*700)

57/120 57/120 57/120

Notes:1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 27°C(80.6°F) DB /19°C(66.2°F) WB- Outdoor Temperature 35°C(95°F) DB /24°C(75.2°F) WB- Interconnecting Piping Length 7.5m- Level Difference of Zero.

Heating: - Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB- Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB- Interconnecting Piping Length 7.5 m- Level Difference of Zero.

2. Capacities are Net Capacities.3. Due to our policy of innovation some specifications may be changed without notification.

- 4 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

2. Piping Diagrams

Heat Exchanger

Sirocco Fan

lndoor unit

Th2 Th3

Th1

:Heating

:Cooling

LOC. Description PCB Connector

Th1 Thermistor for inlet air temperature CN_ROOM

Th2 Thermistor for EVA. in temperature CN_TH1

Th3 Thermistor for EVA. out temperature CN_TH2

Model Gas (mm) Liquid(mm)

ABNH246HLAD 15.88 9.52

ABNH306GLAD 15.88 9.52

ABNH366GLAD 15.88 9.52

ABNH426RLAD 15.88 9.52

ABNH486RLAD 15.88 9.52

ABNH606RLAD 15.88 9.52

- 5 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

3. Wiring Diagrams

CN-REMOCN-PIPE1

RF-REMOTECONTROL

OPTION

CN-ROOMCN-CC

CN-DISP

CN-DPUMP

CN-POWER

CN-MOTOR

ROOM.THERMISTOR

CN-AIRC

A/CLUNIT

CENTRAL CONTROLTELE CONTROLDRY CONTACT

IN-PIPE.THERMISTOR

CN-PIPE2

OUT-PIPE.THERMISTOR

REMOTECONTROL

TO O

UTD

OO

R U

NIT

FUSE

GN/YL

RD

BL

BR

1(L)

2(N)

34

5

CN

-OU

T

CN-PTC

PTCHEATER

VENTILATIONE/HEATER

CN

-ZO

NE

ZONE

CON

TROL

CN

-FLO

AT

FLO

AT S

/W

CN-DPUMP

CN-FLOAT

CN-STEP

CN-AIRC

CN-CC CN-ROOM

ABNH246HLAD

- 6 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

CN-POWER

CN-MOTOR

CN-DPUMP

CN-ZONE

CN-FLOAT

CN-REMO

CN-AIRCCN-CC CN-PIPE2

CN-PIPE1 CN-ROOM

ABNH306GLAD/ ABNH366GLAD/ ABNH426RLAD/ ABNH486RLAD/ ABNH606RLAD

- 7 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

ABNH246HLAD/ ABNH306GLAD/ ABNH366GLAD

4. Exploded View

346810

359012

354210

552111152302

352118

330870

W0CZZ

268711

249941

336600B

267110A

267110B

Option

336600A

137214

147901

137213B

359012

137213A

437213B

567480A

567480B

567480C

437213A

Eva. OUT

Eva. IN

Air

Housing color: red

Housing color: white

Housing color: yellow

567480CTHERMISTOR 3

567480BTHERMISTOR 2

567480ATHERMISTOR 1

Eva. OUT

Eva. IN

Air

Housing color: red

Housing color: white

Housing color: yellow

567480CTHERMISTOR 3

567480BTHERMISTOR 2

567480ATHERMISTOR 1

- 8 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

ABNH426RLAD/ ABNH486RLAD/ ABNH606RLAD

1523

02

2671

10A

2687

11B

2671

10B

Opt

ion

3468

10

3590

12

3590

12

3542

10

2499

41

W30

01

3308

70

W0C

ZZ

5674

80A

5674

80B 56

7480

C

4372

12A

4372

12B13

7214

3366

00B

3366

00A

3366

00B

3366

00A

Eva. OUT

Eva. IN

Air

Housing color: red

Housing color: white

Housing color: yellow

567480CTHERMISTOR 3

567480BTHERMISTOR 2

567480ATHERMISTOR 1

Eva. OUT

Eva. IN

Air

Housing color: red

Housing color: white

Housing color: yellow

567480CTHERMISTOR 3

567480BTHERMISTOR 2

567480ATHERMISTOR 1

P/NO : MFL42999301 JANUARY, 2008