LG Multi V Manuel utilisateur

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

Only for training and service purposes LGE Internal Use Only

- 2 -

1. Specifications ...............................................................................3

2. Function ........................................................................................4

3. Dimensions ...................................................................................5

4. Piping Diagrams ...........................................................................6

5. Wiring Diagrams...........................................................................9

6. Exploded View ............................................................................13

ARUN Series

Only for training and service purposes LGE Internal Use Only

- 3 -

1. Specification

Specification

Heat Pump

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

* 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

* 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 Pump(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

HP(Equivalent horsepower)

Model Name

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 kW

Air Flow RatexNo. of Fan

m3/min

Drive

Discharge

Pipe Connctions Liquid Pipes mm(inch)

Gas Pipes mm(inch)

Dimensions (WxHxD) mm

inch

Net Weight kg

lbs

Transmission Cable mm2

Refigerant Refigerant name

Control

Power Supply Ø, V, Hz

ARUN038GS2 ARUN048GS2

10.6 13.8

9,070 11,840

36,000 47,000

12.3 14.8

10,580 12,730

42,000 50,500

2.9 3.8

3.1 4.0

Warm Gray Warm Gray

Gold fin Gold fin

DC Scroll DC Scroll

42 42

3,600x1 3,600x1

2.4 x1 2.8 x 1

Direct On Line Direct On Line

FV50S FV50S

1,700 1,700

BLDC BLDC

0.124 x 2 0.124 x 2

110 110

DC INVERTER DC INVERTER

Side Side

Ø9.52(3/8) Ø9.52(3/8)

Ø15.88(5/8) Ø15.88(5/8)

950x1380x330 950x1380x330

37.4x54.3x13 37.4x54.3x13

118 118

260 260

CVV-SB 1.25x2C CVV-SB 1.25x2C

R410A R410A

EEV EEV

1, 208/230, 60 1, 208/230, 60

Only for training and service purposes LGE Internal Use Only

- 4 -

Functions

2. Functions

Category Function ARUN038GS2 ARUN048GS2

Defrost / Deicing O

High pressure switch O

Low pressure switch O

Phase protection O

Restart delay (3-minutes) O

Self diagnosis O

Soft start O

Test function O

Auto operation(Artificial intelligence) O

Auto restart operation O

Network soluation(LGAP) O

Power Distribution Indicator(PQNUD1S00) O

PI485(PNF-P14A0M/P14A1M) X

Thermistor -

Reliability

Convenience

Others

CAC network

Function

Category Function ARUN038GS2 ARUN048GS2

Network solution(LGAP) O

Simple Central Controller PQCSB101S0

Function Controller PQCSC101S0

PC Central Control Software PQCSS513A0

Deluxe Central Controller PQCSW502A2

PDI(Power Distribution Indicator) PQNUD1S00

CNU2(I-Gateway) PQNFG14B0

Cool/Heat Selector 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

LG MV Option

Y-Branch Accessory

Header Accessory

Air guide X

Others

Program

CAC network

Function

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.

Only for training and service purposes LGE Internal Use Only

- 5 -

Dimensions

950(37-2/5)

640(25-1/8)

633(24-10/11)

157(6-1/8)

180(7)

400(15-3/4)

76, Seongsan-dong, Changwon City, Gyeongnam,

LG Electronics USA, HVAC Division

1000 Sylvan Avenue, Englewood Cliffs, NJ 07632

www.lgusa.com / www.lghvac.com

641-713, Korea

CHASSIS CODE: U3

Outdoor Unit

ARUN038GS2

ARUN048GS2

[Unit:mm(inch)]

206

330(13)

1354(53-3/8)

525

1380(54-3/8)

175(6-7/8)

28(1-1/8)

467

Only for training and service purposes LGE Internal Use Only

- 6 -

4. Piping Diagrams

Cooling Operation

Piping Diagrams

Heat Pump

EEV

Fil ter

EEV

Fil ter

Accumulator

Inverter

Comp

EEV

Solenoid valve

SVC Valve

Indoor HEX Indoor HEX

Fan

Indoor Unit Indoor Unit

Outdoor Unit

HEX Temperature

Sensor

Outdoor

Temperature

Sensor

High Press ure

Sensor

4-Way Valve

Outdoor

EEV

Sub-cooli ng Circuit

Outlet Temperature

Sensor

Sub-cooling Circuit

Inlet Temperature

Sensor

Sub-Cooling EEV

Sub-Cooler

Liquid Pipe Temp. Sensor

Comp

Disc harge

Temperature

Sensor

Suction

Temperature

Sensor

Low

Pressure

Sensor

Liquid Pipe

Gas Pipe

High Temp. High Press ure Gas

High Temp. High Press ure Liquid

Low Temp. Low Pressure Gas

Oil

Separator

Outdoo r Unit

Pressure Sensor

Pressure Switch

Temperature Sensor

Hot Gas

Valve

Remarks

Strainer

DCDC

Fan

Charging

Port

Charging

Port

Only for training and service purposes LGE Internal Use Only

- 7 -

Piping Diagrams

EEV

Fil ter

EEV

Fil ter

Accumulator

Inverter

Comp

EEV

Soleno id valve

SVC Valve

Fan DC Fan

Outdoor Unit

HEX Temperature

Sensor

Outdoor

Temperature

Sensor

Indoor HEX

Indoor Unit

Indoor HEX

Indoor Unit

Outdoor

EEV

Sub-cooling Circuit

Outlet Temperature

Sensor

Comp

Disc harge

Temperature

Sensor

Oil

Separator

Liquid Pipe Temp. Sensor

Low

Pressure

Sensor

High Pressure

Sensor

4-Way Valve Gas Pipe

Liquid Pipe

Suction

Temperature

Sensor

Sub-Cooler

Sub-cooling Circuit

Inlet Temperature

Sensor

Sub-Cooling EEV

High Temp. High Pressure Gas

High Temp. High Pressure Liqu id

Low Temp. Low Pressure Gas

Pressure Sensor

Pressure Switch

Temperature Sensor

Remarks

Strainer

Hot Gas

Valve

Outdoo r Unit

Fan Fan

Charging

Port

Charging

Port

Heating Operation

Only for training and service purposes LGE Internal Use Only

- 8 -

Piping Diagrams

Fil terFil ter

Accumulator

Inverter

Comp

EEV

Soleno id valve

SVC Valve

Indoor Unit Indoor Unit

DC Fan

High Temp. High Pressure Gas

High Temp. High Pressure Liqu id

Low Temp. Low Pressure Gas

DC Fan

Outdoor Unit

HEX Temperature

Sensor

Outdoor

Temperature

Sensor

Outdoor

EEV

Comp

Disc harge

Temperature

Sensor

Low

Pressure

Sensor

High Pressure

Sensor

Suction

Temperature

Sensor

Gas Pipe

Liquid Pipe

Liquid Pipe Temp. Sensor

Sub-cooling Circuit

Inlet Temperature

Sensor

Sub-Cooling EEV

Sub-Cooler

Oil

Separator

Pressure Sensor

Pressure Switch

Temperature Sensor

Sub-cooling Circuit

Outlet Temperature

Sensor

Hot Gas

Valve

Remarks

Strainer

Outdoo r Unit

Fan Fan

Indoor HEX Indoor HEXEEV EEV

Charging

Port

Charging

Port

Oil Return/ Defrost Operation

Only for training and service purposes LGE Internal Use Only

- 9 -

5. Wiring Diagrams

Heat Pump

Wiring Diagrams

Only for training and service purposes LGE Internal Use Only

- 10 -

Wiring Diagrams

■Main PCB

(

(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)

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