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Internal Use Only http://biz.lgservice.com
System
Outdoor Unit
R410A
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.
ARUN Series
1. Specifications ...............................................................................3
2. Function ........................................................................................5
3. Dimensions ...................................................................................6
4. Piping Diagrams ...........................................................................8
5. Wiring Diagrams .........................................................................13
6. Exploded View & Replacement Parts List................................16
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 2 -
LGE Internal Use Only
Specification
1. Specification
1.1 Heat Recovery(208/230V)
Heat Recovery(208/230V, 60Hz)
Model Name
HP(Equivalent horsepower)
Ton
Capacity Cooling
Input Cooling
Heating
Casing Color
Heat Exchanger
Compressor
Fan
Type
Piston Displacement
Number of Revolution
Motor Output x Number
Starting Method
Oil Type
Oil Charge
Type
Motor Output x Number
Air Flow Rate(High)
Pipe Connctions
Drive
Discharge
Liquid(flare)
Suction Gas
Discharge Gas
Dimensions (WxHxD)
Net Weight
Heating
Communication Cable
Refigerant
Power Supply
Refigerant name
Control
Combination Unit
Independent Unit kcal/h
Btu/h kcal/h
Btu/h cm kW kW kW kW
3 /rev
R.P.M
W cc
W
CMM cfm
Side / Top mm(inch) mm(inch) mm(inch) mm inch kg lbs mm 2
Ø, V, Hz
8
6.5
ARUB076BT2
ARUB076BT2
10
ARUB096BT2
ARUB096BT2
12
8.0 9.5
ARUB115BT2
ARUB115BT2
16
12.5
ARUB154BT2
ARUB076BT2
ARUB076BT2
22.4 28.0 33.6 44.8
19,300 24,100 28,900 38,500
76,400 95,500
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
7.00
Warm Gray
7.8
8.8
Warm Gray
10.8
11.1
Warm Gray
12.40
14.00
Warm Gray
Gold fin
DC Scroll
38.3 + 59.8
Gold fin
DC Scroll
38.3 + 59.8
Gold fin
DC Scroll
38.3 + 59.8
Gold fin
DC Scroll
(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
FVC68D(PVE)
5,600
Direct On Line
FVC68D(PVE)
5,600
Direct On Line
FVC68D(PVE)
5,600
Direct On Line
FVC68D(PVE)
5,600x2
Propeller fan
350 x 2
190
6,700
DC INVERTER
TOP
9.52(3/8)
19.05(3/4)
Propeller fan
350 x 2
190
6,700
DC INVERTER
TOP
9.52(3/8)
22.2(7/8)
Propeller fan
350 x 2
190
6,700
DC INVERTER
TOP
12.7(1/2)
28.58(1 1/8)
Propeller fan
350 x 4
380
13,400
DC INVERTER
TOP
12.7(1/2)
28.58(1 1/8)
15.88(5/8)
1,280x1,607x730
19.05(3/4)
1,280x1,607x730
19.05(3/4)
1,280x1,607x730
22.2(7/8)
(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
628
285
628
285
628
285+285
628+628
CVV-SB 1.25x2C
CVV-SB 1.25x2C
CVV-SB 1.25x2C
CVV-SB 1.25x2C
R410A R410A R410A R410A
EEV
3, 208/230, 60
EEV
3, 208/230, 60
EEV
3, 208/230, 60
EEV
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
Conversion Formula kcal/h= kW x 860
Btu/h = kW x 3412 cfm = m 3 /min x 35.3
l/s = CMM x 1000/60
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 3 -
LGE Internal Use Only
Specification
Heat Recovery(208/230V, 60Hz)
Model Name
HP(Equivalent horsepower)
Ton
Capacity Cooling
Input Cooling
Heating
Casing Color
Heat Exchanger
Compressor
Fan
Type
Piston Displacement
Number of Revolution
Motor Output x Number
Starting Method
Oil Type
Oil Charge
Type
Motor Output x Number
Air Flow Rate(High)
Pipe Connctions
Drive
Discharge
Liquid(flare)
Suction Gas
Discharge Gas
Dimensions (WxHxD)
Net Weight
Heating
Communication Cable
Refigerant
Power Supply
Refigerant name
Control
Combination Unit
Independent Unit kcal/h
Btu/h kcal/h
Btu/h cm kW kW kW kW
3 /rev
R.P.M
W cc
W
CMM cfm
Side / Top mm(inch) mm(inch) mm(inch) mm inch kg lbs mm 2
Ø, V, Hz
18
14.5
ARUB173BT2
20 22
16.0 17.5
ARUB192BT2 ARUB211BT2
24
19.0
ARUB230BT2
ARUB096BT2
ARUB076BT2
ARUB096BT2
ARUB096BT2
ARUB115BT2
ARUB096BT2
ARUB115BT2
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
Warm Gray
Gold fin
DC Scroll
(38.3 + 59.8)x2
17.60 19.90 22.20
Warm Gray Warm Gray Warm Gray
Gold fin
DC Scroll
(38.3 + 59.8)x2
Gold fin
DC Scroll
(38.3 + 59.8)x2
Gold fin
DC Scroll
(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)
5,600x2
Propeller fan
350 x 4
380
13,400
DC INVERTER
TOP
15.88(5/8)
FVC68D(PVE)
5,600x2
Propeller fan
350 x 4
380
13,400
DC INVERTER
TOP
15.88(5/8)
FVC68D(PVE)
5,600x2
Propeller fan
350 x 4
380
13,400
DC INVERTER
TOP
15.88(5/8)
FVC68D(PVE)
5,600x2
Propeller fan
350 x 4
380
13,400
DC INVERTER
TOP
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
628+628
285+285
628+628
285+285
628+628
285+285
628+628
CVV-SB 1.25x2C
CVV-SB 1.25x2C
CVV-SB 1.25x2C
CVV-SB 1.25x2C
R410A
EEV
3, 208/230, 60
R410A
EEV
3, 208/230, 60
R410A
EEV
3, 208/230, 60
R410A
EEV
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
Conversion Formula kcal/h= kW x 860
Btu/h = kW x 3412 cfm = m 3 /min x 35.3
l/s = CMM x 1000/60
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 4 -
LGE Internal Use Only
Functions
2. Functions
Category
Reliability
Convenience
CAC network
Function
Other Thermistor
Function
Defrost/ Deicing
High pressure switch
Low pressure switch
Phase protection
Restart delay(3-minutes)
Self diagnosis
Soft start
Trial operation
Auto operation(Artificial intelligence)
Auto restart operation
Network Solution(LGAP)
Power Distribution Indicator(PNU-D1S00)
Single Unit
O
O
O
O
O
O
O
O
O
O
O
O
-
Series Unit
O
O
O
O
O
O
O
O
O
O
O
O
-
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.
Program
Other
Category
CAC Network
Device
Network Solution(LGAP)
Simple Central Controller
Function Controller
PC Central control Software
Deluxe Central Controller
Power Distribution Indicator(PDI)
CNU2(I-Gataway)
Dry contact(Outdoor Unit)
Dry contact(Indoor Unit)
AC Smart
ACP
AC Manager
LONWORKS Gateway (BNU-LW)
BACnet Gateway (BNU-BN)
LG MV
Y branch
Header branch
Air Guide
Super II
O
PQCSB101S0
PQCSC101S0
PQCSS513A0
PQCSW502A2
PQNUD1S00
PQNFG14B0
PRDSBM
PQDSB
PQCSW320A0E
PQCPA11A0E/B11A0E
PQCSS520A0E
PQNFB16A1
PQNFB17B0
Option
Accessory
Accessory
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.
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 5 -
LGE Internal Use Only
Dimensions
3. Dimensions
L6 L1
160(6-5/16)
D
L2
L3
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 6 -
H
L5
LGE Internal Use Only
Dimensions
L7 L1
160(6-5/16) h2 h1 500mm
(19-11/16 inch)
Suction side
Front side
1500mm(59-1/16 inch)
D
L2
L3
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
H
- 7 -
L6
LGE Internal Use Only
Piping Diagrams
4. Piping Diagrams
4.1 Heat Pump Model
4.1.1 ARUB076BT2, ARUB096BT2, ARUB115BT2
Cooling Operation
Indoor unit
Heat Exch.
EEV
Fan
Filter
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
HR unit s s s
Indoor unit
Heat Exch.
EEV
Fan
Filter s s s s
Indoor unit
Heat Exch.
EEV
Fan
Filter s s
Indoor unit
Heat Exch.
EEV
Fan
Filter
O/S
4 Way Valve
Hot Gas
By pass
O/S
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
INV
Comp
Liquid Injection
Accum
CON
Comp
Sub-Cooler
Pressure sensor
Pressure switch
Check valve s
EEV
Sensor
Solenoid
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 8 -
Outdoor unit
Service Valve
Strainer
*( ) To be used only for series
LGE Internal Use Only
Heating Operation
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Piping Diagrams
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas s s s
HR unit s s s s s s
O/S
4 Way Valve
Hot Gas
By pass
O/S
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
INV
Comp
Liquid Injection
Accum
CON
Comp
Pressure sensor
Pressure switch
Check valve
Sub-Cooler s
EEV
Sensor
Solenoid
Outdoor unit
Service Valve
Strai ner
*( ) To be used only for series
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 9 -
LGE Internal Use Only
Piping Diagrams
Oil Return/ Defrost Operation
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
HR unit s s s s s s s s s
O/S
4 Way Valve
Hot Gas
By pass
O/S
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
INV
Comp
Liquid Injection
Accum
CON
Comp
Sub-Cooler
Pressure sensor
Pressure switch
Check valve s
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
EEV
Sensor
Solenoid
- 10 -
Outdoor unit
Service Valve
Strainer
*( ) To be used only for series
LGE Internal Use Only
Piping Diagrams
Simultaneous Operation Mode 1 (Cooling Based operation)
Cooling
"ON"
Cooling
"ON"
Cooling
"ON"
Heating
"ON"
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas s s s
HR unit s s s s s s
Sub-Cooler
O/S
INV
Comp
4 Way Valve
Liquid Injection
Accum
Hot Gas
By pass
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
O/S
CON
Comp
Outdoor unit
Pressure sensor
Pressure switch
Check valve
EEV
Sensor s
Solenoid
Service Valve
Strainer
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 11 -
LGE Internal Use Only
Piping Diagrams
Heating
"ON"
Heating
"ON"
Heating
"ON"
Simultaneous Operation Mode 2 (Heating Based operation)
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
Indoor unit
Heat Exch.
EEV
Fan
Filter
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas s s s
HR unit s s s s s s
Cooling
"ON"
Indoor unit
Heat Exch.
EEV
Fan
Filter
Sub-Cooler
O/S
INV
Comp
4 Way Valve
Liquid Injection
Accum
Hot Gas
Bypass
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
O/S
CON
Comp
Outdoor unit
Pressure sensor
Pressure switch
Check valve
EEV
Sensor s
Solenoid
Service Valve
Strainer
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 12 -
LGE Internal Use Only
5. Wiring Diagrams
5.1 Heat Pump Model
5.1.1 3Ø 208/230V(ARUB076BT2, ARUB096BT2, ARUB115BT2)
Wiring Diagrams
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 13 -
LGE Internal Use Only
Wiring Diagrams
■ Main PCB
CN29 TO INVERTER BOARD
( INVERTER PCB COMMUNICATION TERMINAL)
CN38 EEV-OUT
( OUTDOOR ELECTRONIC EXPANSION VALVE)
CN40 EEV-SC
( SUBCOOLING CIRCUIT ELECTRONIC EXPANSION VALVE)
CN44 P(I) S/W
( INV COMP HIGH PRESSUR SWITCH))
CN43 P(C) S/W
( CONSTANT COMP HIGH
PRESSURE SWITCH)
CN17 LIQ(C)
( CONSTANT COMP LIQUID VALVE
CN16 LIQ(I)
( INVERTER COMP LIQUID VALVE
CN15 AC FAN
( AC FAN POWER SUPPLY)
CN14 MAGNET(C)
( CONSTANT COMP MAGNETIC
SWITCH)
CN13 HOT GAS
( HOT GAS SOLENOID VALVE)
CN11 HEATER(C)
( CONSTANT COMP HEATER)
CN10 HEATER(I)
( INVERTER COMP HEATER)
CN09 4WAY
(4 WAY REVERSING VALVE)
CN08 AC 220 V
(220 V POWER INPUT TERMINAL)
JIG1, JIG2
( JIG POWER TERMINAL : AC 220V)
CN27 STD_COMP CT1
(CONSTANT COMP CURRENT SENSOR)
CN32 P-SENSOR(L)
(LOW PRESSURE SENSOR)
SW01S RESET
(RESET BUTTON)
CN04 FLASH_WRITE
(ONBOARDING TERMINAL)
CN05 TO JIG
(JIG CONNECTION TERMINAL: LGMV)
SW02V AUTO ADDRES
(AUTO ADDRESSING SWITCH)
CN41 CEN CONTROL
(CENTRAL CONTROL TERMINAL)
CN33
SC-OUT
(SC CIRCUIT OUTLET TEMP SENSOR)
SC-IN
(SC CIRCUIT INTLET TEMP SENSOR)
SUCTION
(SUCTION TEMPERATURE SENSOR)
CN34
DISCHARGE(I)
(INV DISCHARGE TEMP SENSOR)
HEX1
(OUTDOOR HEX TEMP SENSOR 1)
HEX2
(OUTDOOR HEX TEMP SENSOR 2)
CN35
AIR
(OUTDOOR TEMPERATURE SENSOR)
SUCTION
(SUCTION TEMPERATURE SENSOR)
DISCHARGE(C)
(CONST COMP DISCHARGE
TEMP SENSOR)
CN30 P-SENSOR(H)
(HIGH PRESSURE SENSOR)
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 14 -
LGE Internal Use Only
Wiring Diagrams
■ Noize Filter ■ 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 15V
DC 15V Power Input Terminal
CN HALL SENSOR(R)
Left Fan Motor Hall Sensor
CN HALL SENSOR(L)
Right Fan Motor Hall Sensor
TO MAIN PCB
220V Power Output Terminal
TO INV. PCB
220V Power Output Terminal
■ Inveter PCB (3Ø 208/230V)
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
CN-FLASH WRITE(PFC)
CN03 INV LGMV
INV Onboarding Terminal
CN02 Main
Communication Terminal to Main PCB
CN_L1(R)
R Phase Terminal
CN_L2(S)
S Phase Terminal
CN_L3(T)
T Phase Terminal
CN-FLASH WRITE(INV)
CN05 COOLING FAN
CN01 FAN
Communication Terminal to Fan PCB
CN FAN RIGHT
Left Fan Motor Hall Sensor
CN DC LINK
700V DC LINK
CN FAN LEFT
Right Fan Motor Hall Sensor
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 15 -
LGE Internal Use Only
Explodede View
6. Exploded View
Outdoor Unit
UW1 Chassis (208/230V, ARU B 076BT2/096BT2/115BT2)
268711C
268711B
649950A
268711A
566001
649950B
W6631A
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 16 -
W6200 W6640 W6631B
LGE Internal Use Only
Explodede View
137213 A
559010
546810
349600
559010
546810
263230B
435512
435312
554030B
552115C
W5210B
554030D
552115D
352114B
352111B
554030A
552115B
W5210B
554030C
552115A
352114A
352111B
435310
437211
THERMISTOR 1
THERMISTOR 2
THERMISTOR 3
346811
649950A
263230A
263230B
263230C
263230C
437212
552204B
561410D
137213 B
552204A
561410B
649950B
552204
552201B
566000
W52240E
W52240D
552204A
561410C
165010A
552202
552201A
552102
552201A
566000B
165010B
561410A
W52240B
55211G
235042
554160A
548490
553000A
352111A
263230A
55211F
W52240A
554160B
552102
552203C
552203B
553000B
552203A
Liquid Pipe + sub Cooler IN + Sub Cooler OUT
Inv. discharge + HEX(Front) + HEX (back)
Air + suction Pipe
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 17 -
Housing color : yellow
Housing color : purple
Housing color : black
LGE Internal Use Only
P/NO : MFL54555502 JUNE, 2008
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