LG LAN185HV, LAN245HV, LAU185HV, LAU245HV, AS-W1838RH0 Svc Manual

Room Air Conditioner

SVC MANUAL(Exploded View)

MODEL :

AS-W1838*H0 (LAN185HV / LAU185HV)

AS-W2438*H0 (LAN245HV / LAU245HV)

CAUTION

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

Internal Use Only

http://biz.lgservice.com

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

1. Specification

Note:

O

: Applied, - : No relation

*

For circuit breaker rating, please conform to local standards wherever necessary.

❈

Some of functions are slightly different depending upon models.

❈

The specification may be subject to change without prior notice for purpose of improvement.

❈

Capacity : based on 230V

Cooling Capacity kW

Btu/h.

Heating Capacity kW

Btu/h.
Power Input Cooling/Heating W
Running Current Cooling/Heating A
Starting Current Cooling/Heating A
EER W/W

Btu/h.W
COP W/W
Power Supply Ø / V / Hz
Power Factor %
Air Flow Rate Indoor,Max m3/min(CFM)

Outdoor,Max m3/min(CFM)
Moisture Removal l/h.
Sound Level Indoor,H/M/L dB(A)+3

Outdoor,Max dB(A)+3
Refrigerant & Charge (at 7.5 m) g(oz)
Additional Refrigerant charge g/m(oz/ft)
Compressor Type

Model

Motor Type

Oil Type

Oil Charge cc

O.L.P. name
Fan(Indoor) Type

Motor Output W
Fan(Outdoor) Type

Motor Type

Motor Output W
Circuit Breaker* A
Power Supply Cable AWG
Power and Transmission Cable No.*mm2+ AWG
Piping Connections Liquid Side mm(in)

Gas Side mm(in)
Drain Hose O.D., I.D. mm(in)
Dimensions Indoor (W*H*D) mm

inch

Outdoor (W*H*D) mm

inch

Net Weight Indoor kg(lbs)

Outdoor kg(lbs)
Operation Range Cooling(Outdoor) ˚C(˚F)

Heating(Outdoor) ˚C(˚F)
Max. Piping Length m(ft)
Max. Elevation Difference m(ft)
Tool Code(Chassis) Indoor + Outdoor
Functions Temperature Control

Plasma Filter

Prefilter(washable/anti-fungus)

Auto Clean

CHAOS Wind(Auto Wind)

Steps, Fan/Cool/Heat

Airflow Direction Control(up & Down)

Airflow Direction Control(left & right)

Remote Controller Type

Setting Temperature Range Cooling

Heating
Auto Operation (Micom Control)
Auto Changeover (Micom Control)
Self Diagnosis
Timer
Sleep Operation
Soft Dry Operation
Restart Delay(minute)
Deice Control(Defrost)
Hot Start
Jet Cool / Heat
Low Ambient Operation
Special Function

Network Functions Dry Contact

Network Solution
PI485

Models

AS-W1838RH0 [LA185HV] AS-W2438RH0 [LA245HV]

1.76~5.28~5.80 3.87~7.03~7.74

6,005~18,000~19,790 13,200~24,000~26,400

1.40~6.07~6.65 3.37~8.09~8.88

4,776~20,700~22,690 11,500~27,600~30,300

1,640/1,770 2,450/2,900

7.3/8.3 11.0/13.0

7.3/8.3 11.0/13.0

3.22 2.87

11.0 9.8

3.43 2.79

1/208-230/60 1/208-230/60

98 97

18.5(650) 20.3(717)
42(1,483) 58(2,048)

2.1 2.7

40/38/34 45/40/37

53 54

R410A, 1,200(42) R410A, 1,800(63.5)

20(0.22) 30(0.32)

Rotary Rotary

5CS130XCA03 5KD240XCA21

BLDC BLDC

RB68A FV50S

360 900

-­Cross Flow Fan Cross Flow Fan

20 24

Propeller Propeller

AC Induction AC Induction

79 79
20 25
14 12
18 18

6.35(1/4) 9.52(3/8)

12.7(1/2) 15.88(5/8)

21.5,16(0.85,0.63) 21.5,16(0.85,0.63)
1,107*299*200 1,107*299*200

43.6*11.8*7.9 43.6*11.8*7.9
870*655*320 870*800*320

34.3*25.8*12.6 34.3*34.6*12.6

14.1(31.1) 14.1(31.1)
46(101.4) 60(132.3)

-10 ~ 46 (14.0~114.8)(Low Ambient) -10 ~ 46 (14.0~114.8)(Low Ambient)

-10 ~ 24 (14.0 ~ 75.2) -10 ~ 24 (14.0 ~ 75.2)
15(49) 30(98)

7(23) 15(49)

S8 + UE S8 + UE1

Thermistor Thermistor

NEO NEO

OO
OO
OO

3/4/4 3/4/4

Auto Auto
Auto Auto

Wireless LCD Wireless LCD
18 ~ 30 (64~86) 18 ~ 30 (64~86)
16 ~ 30 (60~86) 16 ~ 30 (60~86)

-­OO
OO

24h On/Off 24h On/Off

OO
OO

22
OO
OO
OO
OO

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

2. Piping Diagrams

Indoor Unit Outdoor Unit

Heat
Exchanger
(Evaporator)

Heat
Exchanger
(Condenser)

EEV

Compressor

Accumulator

Gas Side

3-Way Valve

2-Way Valve

Liquid Side

Cooling

Heating

Reversing Valve

Th1

Th2

Th3

Th5

Th4

Th6

Th7

LOC. Description PCB Connector

Th1 Thermistor for indoor air temperature CN_TH1(INDOOR)

Th2

Thermistor for evaporating temperature

CN_TH2(INDOOR)

Th3 CN_TH3(INDOOR)

Th4 Thermistor for outdoor air temperature

CN_TH2(OUTDOOR)

Th5 Thermistor for condensing temperature

Th6 Thermistor for discharge pipe temperature

CN_TH3(OUTDOOR)

Th7 Thermistor for suction pipe temperature