LG ARUB115BT2 User manual

System
Outdoor Unit
SERVICE MANUAL R410A
(Exploded View)
MODEL : ARUN Series
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
R410A

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 2 -
1. Specifications ...............................................................................3
2. Function ........................................................................................5
3. Dimensions ...................................................................................6
4. Piping Diagrams ...........................................................................8
5. Wiring Diagrams.........................................................................13
6. Exploded View & Replacement Parts List................................16
ARUN Series

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 3 -
1. Specification
Specification
1.1 Heat Recovery(208/230V)
Notes:
1. Capacities are based on the following conditions:
Cooling * Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB
* Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB
* Interconnecting Piping Length 7.5m(25ft)
* Level Difference of Zero
Heating * Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB
* Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB
* Interconnecting Piping Length 7.5m(25ft)
* Level Difference of Zero
2. Capacities are net capacities
3. Due to our policy of innovation some specifications may be changed without prior notification
4. EEV : Electronic Expansion Valve
HP(Equivalent horsepower)
Ton
Model Name Combination Unit
Independent Unit
Capacity Cooling kW
kcal/h
Btu/h
Heating kW
kcal/h
Btu/h
Input Cooling kW
Heating kW
Casing Color
Heat Exchanger
Compressor Type
Piston Displacement cm3/rev
Number of Revolution R.P.M
Motor Output x Number
W
Starting Method
Oil Type
Oil Charge cc
Fan Type
Motor Output x Number W
Air Flow Rate(High) CMM
cfm
Drive
Discharge Side / Top
Pipe Connctions Liquid(flare) mm(inch)
Suction Gas mm(inch)
Discharge Gas mm(inch)
Dimensions (WxHxD) mm
inch
Net Weight kg
lbs
Communication Cable mm2
Refigerant Refigerant name
Control
Power Supply Ø, V, Hz
8101216
6.5 8.0 9.5 12.5
ARUB076BT2 ARUB096BT2 ARUB115BT2 ARUB154BT2
ARUB076BT2 ARUB096BT2 ARUB115BT2 ARUB076BT2
ARUB076BT2
22.4 28.0 33.6 44.8
19,300 24,100 28,900 38,500
76,400 95,500 114,700 152,900
25.2 31.5 37.8 50.4
21,700 27,100 32,500 43,300
86,000 107,500 129,000 172,000
6.20 7.8 10.8 12.40
7.00 8.8 11.1 14.00
Warm Gray Warm Gray Warm Gray Warm Gray
Gold fin Gold fin Gold fin Gold fin
DC Scroll DC Scroll DC Scroll DC Scroll
38.3 + 59.8 38.3 + 59.8 38.3 + 59.8 (38.3 + 59.8)x2
3,600 + 3,500 3,600 + 3,500 3,600 + 3,500 (3,600 + 3,500)x2
(4,130 + 5,280)x1 (4,130 + 5,280)x1 (4,130 + 5,280)x1 (4,130 + 5,280)x2
Direct On Line Direct On Line Direct On Line Direct On Line
FVC68D(PVE) FVC68D(PVE) FVC68D(PVE) FVC68D(PVE)
5,600 5,600 5,600 5,600x2
Propeller fan Propeller fan Propeller fan Propeller fan
350 x 2 350 x 2 350 x 2 350 x 4
190 190 190 380
6,700 6,700 6,700 13,400
DC INVERTER DC INVERTER DC INVERTER DC INVERTER
TOP TOP TOP TOP
9.52(3/8) 9.52(3/8) 12.7(1/2) 12.7(1/2)
19.05(3/4) 22.2(7/8) 28.58(1 1/8) 28.58(1 1/8)
15.88(5/8) 19.05(3/4) 19.05(3/4) 22.2(7/8)
1,280x1,607x730 1,280x1,607x730 1,280x1,607x730 (1,280x1,607x730)x2
50-3/8 x 63-5/16 x 28-11/16 50-3/8 x 63-5/16 x 28-11/16 50-3/8 x 63-5/16 x 28-11/16 (50-3/8 x 63-5/16 x 28-11/16)x2
285 285 285 285+285
628 628 628 628+628
CVV-SB 1.25x2C CVV-SB 1.25x2C CVV-SB 1.25x2C CVV-SB 1.25x2C
R410A R410A R410A R410A
EEV EEV EEV EEV
3, 208/230, 60 3, 208/230, 60 3, 208/230, 60 3, 208/230, 60
Heat Recovery(208/230V, 60Hz)
Conversion Formula
kcal/h= kW x 860
Btu/h = kW x 3412
cfm = m3/min x 35.3
l/s = CMM x 1000/60

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 4 -
Specification
HP(Equivalent horsepower)
Ton
Model Name Combination Unit
Independent Unit
Capacity Cooling kW
kcal/h
Btu/h
Heating kW
kcal/h
Btu/h
Input Cooling kW
Heating kW
Casing Color
Heat Exchanger
Compressor Type
Piston Displacement cm3/rev
Number of Revolution R.P.M
Motor Output x Number W
Starting Method
Oil Type
Oil Charge cc
Fan Type
Motor Output x Number W
Air Flow Rate(High) CMM
cfm
Drive
Discharge Side / Top
Pipe Connctions Liquid(flare) mm(inch)
Suction Gas mm(inch)
Discharge Gas mm(inch)
Dimensions (WxHxD) mm
inch
Net Weight kg
lbs
Communication Cable mm2
Refigerant Refigerant name
Control
Power Supply Ø, V, Hz
18 20 22 24
14.5 16.0 17.5 19.0
ARUB173BT2 ARUB192BT2 ARUB211BT2 ARUB230BT2
ARUB096BT2 ARUB096BT2 ARUB115BT2 ARUB115BT2
ARUB076BT2 ARUB096BT2 ARUB096BT2 ARUB115BT2
50.4 56.0 61.6 67.2
43,300 48,200 53,000 57,800
172,000 191,100 210,200 229,300
56.7 63.0 69.3 75.6
48,800 54,200 59,600 65,000
193,500 225,000 236,500 258,000
14.00 15.60 18.60 21.60
15.80 17.60 19.90 22.20
Warm Gray Warm Gray Warm Gray Warm Gray
Gold fin Gold fin Gold fin Gold fin
DC Scroll DC Scroll DC Scroll DC Scroll
(38.3 + 59.8)x2 (38.3 + 59.8)x2 (38.3 + 59.8)x2 (38.3 + 59.8)x2
(3,600+3,500)x2 (3,600+3,500)x2 (3,600+3,500)x2 (3,600+3,500)x2
(4,130 + 5,280)x2 (4,130 + 5,280)x2 (4,130 + 5,280)x2 (4,130 + 5,280)x2
Direct On Line Direct On Line Direct On Line Direct On Line
FVC68D(PVE) FVC68D(PVE) FVC68D(PVE) FVC68D(PVE)
5,600x2 5,600x2 5,600x2 5,600x2
Propeller fan Propeller fan Propeller fan Propeller fan
350 x 4 350 x 4 350 x 4 350 x 4
380 380 380 380
13,400 13,400 13,400 13,400
DC INVERTER DC INVERTER DC INVERTER DC INVERTER
TOP TOP TOP TOP
15.88(5/8) 15.88(5/8) 15.88(5/8) 15.88(5/8)
28.58(1 1/8) 28.58(1 1/8) 34.9(1 3/8) 34.9(1 3/8)
22.2(7/8) 22.2(7/8) 28.58(1 1/8) 28.58(1 1/8)
(1,280x1,607x730)x2 (1,280x1,607x730)x2 (1,280x1,607x730)x2 (1,280x1,607x730)x2
(50-3/8 x 63-5/16 x 28-11/16)x2 (50-3/8 x 63-5/16 x 28-11/16)x2 (50-3/8 x 63-5/16 x 28-11/16)x2 (50-3/8 x 63-5/16 x 28-11/16)x2
285+285 285+285 285+285 285+285
628+628 628+628 628+628 628+628
CVV-SB 1.25x2C CVV-SB 1.25x2C CVV-SB 1.25x2C CVV-SB 1.25x2C
R410A R410A R410A R410A
EEV EEV EEV EEV
3, 208/230, 60 3, 208/230, 60 3, 208/230, 60 3, 208/230, 60
Notes:
1. Capacities are based on the following conditions:
Cooling * Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB
* Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB
* Interconnecting Piping Length 7.5m(25ft)
* Level Difference of Zero
Heating * Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB
* Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB
* Interconnecting Piping Length 7.5m(25ft)
* Level Difference of Zero
2. Capacities are net capacities
3. Due to our policy of innovation some specifications may be changed without prior notification
4. EEV : Electronic Expansion Valve
Heat Recovery(208/230V, 60Hz)
Conversion Formula
kcal/h= kW x 860
Btu/h = kW x 3412
cfm = m3/min x 35.3
l/s = CMM x 1000/60

Functions
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 5 -
2. Functions
Category Function Single Unit Series Unit
Defrost/ Deicing O O
High pressure switch O O
Low pressure switch O O
Phase protection O O
Restart delay(3-minutes) O O
Self diagnosis O O
Soft start O O
Trial operation O O
Auto operation(Artificial intelligence) O O
Auto restart operation O O
Network Solution(LGAP) O O
Power Distribution Indicator(PNU-D1S00) O O
Other Thermistor - -
Reliability
Convenience
CAC network
Function
Category Device Super II
Network Solution(LGAP) O
Simple Central Controller PQCSB101S0
Function Controller PQCSC101S0
PC Central control Software PQCSS513A0
Deluxe Central Controller PQCSW502A2
Power Distribution Indicator(PDI) PQNUD1S00
CAC Network CNU2(I-Gataway) PQNFG14B0
Dry contact(Outdoor Unit) PRDSBM
Dry contact(Indoor Unit) PQDSB
AC Smart PQCSW320A0E
ACP PQCPA11A0E/B11A0E
AC Manager PQCSS520A0E
LONWORKS Gateway (BNU-LW) PQNFB16A1
BACnet Gateway (BNU-BN) PQNFB17B0
Program LG MV Option
Y branch Accessory
Other Header branch Accessory
Air Guide Accessory
O : Applied X : Not applied - : No reation
Option : Model name & price are different according to options, and assembled in factory with main unit
Accessory : Installed at field, ordered and purchased separately by the corresponding model name,
supplied with separated package.
O : Applied X : Not applied - : No reation
Option : Model name & price are different according to options, and assembled in factory with main unit
Accessory : Installed at field, ordered and purchased separately by the corresponding model name,
supplied with separated package.

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 6 -
76, Seongsan-dong, Changwon City, Gyeongnam,
641-713, Korea www.lgeaircon.com
CHASSIS CODE: UW1
W mm(inch)
H mm(inch) D mm(inch)
L1 mm(inch) L2 mm(inch) L3 mm(inch) L4 mm(inch) L5 mm(inch) L6 mm(inch) L7 mm(inch)
L4
L3
L2
D
H
L5
L1 L6
WL7 D
60(2-3/8)
160(6-5/16)
1280(50-3/8)
1607(63-5/16) 730(28-11/16)
1427(56-1/8) 692(27-3/16) 670(26-5/16)
900(35-3/8)
704(27-11/16)
99(3-7/8)
82(3-3/16)
[Unit: mm(inch)]
Outdoor Unit(208/230V)
ARUB076BT2 ARUB096BT2 ARUB115BT2
LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com
3. Dimensions
Dimensions

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 7 -
Dimensions
76, Seongsan-dong, Changwon City, Gyeongnam,
641-713, Korea www.lgeaircon.com
CHASSIS CODE: UW1
W mm(inch) H mm(inch) D mm(inch) L1 mm(inch) L2 mm(inch) L3 mm(inch) L4 mm(inch) L5 mm(inch) L6 mm(inch) L7 mm(inch) L8 mm(inch)
L5
H
L6
L1 L7
WL8
D
60(2-3/8)
160(6-5/16)
L4
L3
L2
D
Notes: 1. Height of walls in case of pattern1:
Front side:1500mm(59-1/16 inch), Suction side:500mm(19-11/16 inch)
2. If the above wall heights are exceeded, then h1/2 and h2/2 should be added to the front and
suction side service spaces respectively as shown in the following figure.
3. When installing the units, the most appropriate pattern should be selected from those shown.
In order to obtain the best fit in the space available, always bear in mind the need to leave enough room for a person to pass between units and wall and for the air to circulate freely. Your layout should take into account the possibility of short circuits.
4. The Units should be installed to leave sufficient space in front for the on site refrigerant piping
work to be carried out comfortably.
1500mm(59-1/16 inch)
500mm
(19-11/16 inch)
h2
h1
Front side
Suction side
Front side
900mm(35-7/16 inch)
or more
250mm
(9-13/16 inch)
or more
250mm
(9-13/16 inch)
or more
250mm(9-13/16 inch) or more
[Unit: mm(inch)]
1280(50-3/8)
1607(63-5/16) 730(28-11/16)
1427(56-1/8) 692(27-3/16) 670(26-5/16)
900(35-3/8)
10(3/8)
704(27-11/16)
99(3-7/8)
82(3-3/16)
Outdoor Unit(208/230V)
ARUB154BT2 ARUB173BT2 ARUB192BT2 ARUB211BT2 ARUB230BT2
LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 8 -
4. Piping Diagrams
Piping Diagrams
4.1.1 ARUB076BT2, ARUB096BT2, ARUB115BT2
Cooling Operation
Pressure sensor
Pressure switch
Check valve
EEV
Indoor unit
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
Indoor unit
EEV
Indoor unit
Heat Exch.
Filter
CON
Comp
INV
Comp
O/S
O/S
s
Sub-Cooler
By pass
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
Fan
Fan
s s
s
EEV
Sensor
Solenoid
Service Valve
Strainer
*( ) To be used only for series
(Low pressure Gas Pipe)
(Liquid pipe)
(High pressure Gas Pipe)
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Heat Exch.
Filter
Fan
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
Hot Gas
4.1 Heat Pump Model

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 9 -
Piping Diagrams
Pressure sensor
Pressure switch
Check valve
Low Pressure Gas Pipe
Liquid Pipe
EEV
Indoor unit
Fan
Heat Exch.
Filter
CON
Comp
INV
Comp
O/S
O/S
s
Sub-Cooler
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
s s
s
EEV
Sensor
Solenoid
Service Valve
Strai
*( ) To be used only for series
ner
(Low pressure Gas Pipe)
(Liquid pipe)
(High pressure Gas Pipe)
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
High Pressure Gas Pipe
Hot Gas
By pass
Heating Operation

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 10 -
Piping Diagrams
Pressure sensor
Pressure switch
Check valve
EEV
Indoor unit
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
Indoor unit
EEV
Indoor unit
Heat Exch.
Filter
CON
Comp
INV
Comp
O/S
O/S
s
Sub-Cooler
Hot Gas
By pass
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
Fan
Fan
s s
s
EEV
Sensor
Solenoid
Service Valve
Strainer
*( ) To be used only for series
(Low pressure Gas Pipe)
(Liquid pipe)
(High pressure Gas Pipe)
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Heat Exch.
Filter
Fan
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
Oil Return/ Defrost Operation

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 11 -
Piping Diagrams
s
Pressure sensor
Pressure switch
Check valve
EEV
Sensor
Solenoid
Service Valve
Strainer
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
EEV
Indoor unit
Fan
Heat Exch.
Filter
CON
Comp
INV
Comp
O/S
O/S
s
s s
Sub-Cooler
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
Cooling
"ON"
Cooling
"ON"
Cooling
"ON"
Heating
"ON"
Hot Gas
By pass
Simultaneous Operation Mode 1 (Cooling Based operation)

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 12 -
Piping Diagrams
s
Pressure sensor
Pressure switch
Check valve
EEV
Sensor
Solenoid
Service Valve
Strainer
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
EEV
Indoor unit
Fan
Heat Exch.
Heating
"ON"
Heating
"ON"
Heating
"ON"
Cooling
"ON"
Filter
CON
Comp
INV
Comp
O/S
O/S
s
s s
Sub-Cooler
Hot Gas
Bypass
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
Simultaneous Operation Mode 2 (Heating Based operation)

Wiring Diagrams
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 13 -
5. Wiring Diagrams
5.1 Heat Pump Model
5.1.1 3Ø 208/230V(ARUB076BT2, ARUB096BT2, ARUB115BT2)
3Ø208/230V 3N
60Hz

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 14 -
Wiring Diagrams
■Main PCB
(
(4
(
(
(
(
(220
(
(
(
(
(
(
(
(
INVERTER PCB COMMUNICATION TERMINAL)
WAY REVERSING VALVE)
CN09 4WAY
CONSTANT COMP LIQUID VALVE
CN17 LIQ(C)
INVERTER COMP HEATER)
CN10 HEATER(I)
AC FAN POWER SUPPLY)
CN15 AC FAN
CONSTANT COMP MAGNETIC
SWITCH)
CN14 MAGNET(C)
V POWER INPUT TERMINAL)
CONSTANT COMP HEATER)
CN11 HEATER(C)
CN16 LIQ(I)
CN08 AC 220 V
JIG POWER TERMINAL : AC 220V)
JIG1, JIG2
CN29 TO INVERTER BOARD
HOT GAS SOLENOID VALVE)
CN13 HOT GAS
SUBCOOLING CIRCUIT ELECTRONIC EXPANSION VALVE)
OUTDOOR ELECTRONIC EXPANSION VALVE)
CN40 EEV-SC
CN38 EEV-OUT
CONSTANT COMP HIGH
PRESSURE SWITCH)
CN43 P(C) S/W
INV COMP HIGH PRESSUR SWITCH))
CN44 P(I) S/W
INVERTER COMP LIQUID VALVE
(LOW PRESSURE SENSOR)
CN32 P-SENSOR(L)
(CONSTANT COMP CURRENT SENSOR)
CN27 STD_COMP CT1
SC-OUT
(SC CIRCUIT OUTLET TEMP SENSOR)
SC-IN
SUCTION
CN33
(SUCTION TEMPERATURE SENSOR)
DISCHARGE(I)
(INV DISCHARGE TEMP SENSOR)
HEX1
(OUTDOOR HEX TEMP SENSOR 1)
HEX2
CN34
AIR
(OUTDOOR TEMPERATURE SENSOR)
SUCTION
(SUCTION TEMPERATURE SENSOR)
DISCHARGE(C)
CN35
(CONST COMP DISCHARGE
TEMP SENSOR)
CN41 CEN CONTROL
(CENTRAL CONTROL TERMINAL)
CN05 TO JIG
(JIG CONNECTION TERMINAL: LGMV)
CN04 FLASH_WRITE
(ONBOARDING TERMINAL)
(AUTO ADDRESSING SWITCH)
SW02V AUTO ADDRES
SW01S RESET
(RESET BUTTON)
(HIGH PRESSURE SENSOR)
CN30 P-SENSOR(H)
(SC CIRCUIT INTLET TEMP SENSOR)
(OUTDOOR HEX TEMP SENSOR 2)

Wiring Diagrams
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 15 -
■Noize Filter
■Inveter PCB (3Ø208/230V)
CN_06AC220V INPUT
220V Power Input Terminal
CN12 DC_LINK(700V)
(700V DC LINK)
CN13 15V OUTPUT
DC 15V Output Terminal
CN04 PFC LGMV
PFC Onboarding Terminal
CN14 UVW OUT
UVW Output Terminal
INV Onboarding Terminal
CN-FLASH WRITE(PFC)
CN03 INV LGMV
Communication Terminal to Main PCB
CN02 Main
Communication Terminal to Fan PCB
CN01 FAN
R Phase Terminal
CN_L1(R)
CN05 COOLING FAN
S Phase Terminal
CN_L2(S)
T Phase Terminal
CN_L3(T)
CN-FLASH WRITE(INV)
220V Power Output Terminal
TO MAIN PCB
220V Power Output Terminal
TO INV. PCB
■FAN PCB(UW1)
CN_MICOM WRITING
INV Onboarding Terminal
CN HEAT SINK
Heat Sink Temp. Sensor
CN INV_COM
Communication Terminal to
INV PCB
CN HALL SENSOR(R)
Left Fan Motor Hall Sensor
CN HALL SENSOR(L)
Right Fan Motor Hall Sensor
CN FAN RIGHT
Left Fan Motor Hall Sensor
CN DC LINK
700V DC LINK
CN FAN LEFT
Right Fan Motor Hall Sensor
CN 15V
DC 15V Power Input Terminal

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 16 -
Explodede View
6. Exploded View
268711C
268711B
649950A
W6631A W6631B
649950B
W6200 W6640
566001
268711A
Outdoor Unit
UW1 Chassis (208/230V, ARUB076BT2/096BT2/115BT2)

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
- 17 -
Explodede View
559010
553000A
554160A
548490
552201B
552201A
552201A
561410C
566000
554160B
546810
649950B
566000B
352111A
263230C
561410A
W52240B
552204A
561410B
263230B
137213A
55211G
552202
165010A
263230A
55211F
235042
W52240D
W52240A
W52240A
W52240E
561410D
165010B
553000B
559010
546810
552203A
552203C
552203B
552204
552204B
437212
552204A
349600
435512
435312
137213B
552102
435310
554030C
552115A
352114A
352111B
649950A
346811
W52240A
552102
437211
554030A
552115B
W5210B
554030D
552115D
352114B
352111B
554030B
552115C
W5210B
THERMISTOR 1 263230A Liquid Pipe + sub Cooler IN + Sub Cooler OUT Housing color : yellow
THERMISTOR 2 263230B Inv. discharge + HEX(Front) + HEX (back) Housing color : purple
THERMISTOR 3 263230C Air + suction Pipe Housing color : black

P/NO : MFL54555502 JUNE, 2008