LG JRUN80LM3 Owner’s Manual

Internal Use Only

http://biz.lgservice.com

CAUTION

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

Outdoor Unit

SERVICE MANUAL

(Exploded View)

MODEL : ARUN***LM3 Series

R410A

Solo - Heat Pump

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

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

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

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

5. Wiring Diagrams.........................................................................17

6. Exploded View ............................................................................22

ARUN***LM3 Series

- 2 -

LGE Internal Use Only

1. Specifications

Specification

Heat Pump(50Hz/60Hz)

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

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

Piping Length - Interconnecting Piping Length 7.5m

- Level Difference of Zero

2. Capacities are net capacities

3. EEV : Electronic Expansion Valve

4. Wiring cable size must comply with the applicable local and national code.

5. Due to our policy of innovation some specifications may be changed without prior notification

Conversion Formula

RT = kW x 0.284 kcal/h = kW x 860 Btu/h = kW x 3412 cfm = m

3

/min x 35.3

- 3 -

LGE Internal Use Only

HP 8 10 12

Model Name

Combination Unit ARUN80LM3 ARUN100LM3 ARUN120LM3

Independent Unit

ARUN80LM3 ARUN100LM3 ARUN120LM3

Capacity

Cooling

kW 22.4 28.0 33.6

kcal/h 19,300 24,100 28,900

Btu/h 76,400 95,900 114,700

Heating

kW 25.2 31.5 37.8

kcal/h 21,700 27,100 32,500

Btu/h 86,000 107,500 129,000

Power Input

Cooling kW 5.55 7.20 9.30 Heating kW 5.96 7.60 9.34

Casing Color

Warm Gray

Morning Gray

Warm Gray

Morning Gray

Warm Gray

Morning Gray

Heat Exchanger Gold fin Gold fin Gold fin

Compressor

Type DC Scroll DC Scroll DC Scroll Piston Displacement cm3/rev 52.0 40.46 + 81.02 40.46 + 81.02 Number of Revolution R.P.M 3,600 3,600 + 2,891 3,600 + 2,891 Motor Output x Number W 5,356 4,200 + 5,300 4,200 + 5,300 Starting Method Direct On Line Direct On Line Direct On Line Oil Type FVC68D(PVE) FVC68D(PVE) FVC68D(PVE) Oil Charge cc 2,825 3,975 3,975

Fan

Type Propeller fan Propeller fan Propeller fan Motor Output x Number W 750 x 1 750 x 1 750 x 1

Air Flow Rate(High)

CMM 180 190 190

CFM 6,300 6,700 6,700 Drive DC INVERTER DC INVERTER DC INVERTER Discharge Side / Top TOP TOP TOP

Pipe Connctions

Liquid Pipes mm(inch) 9.52(3/8) 9.52(3/8) 12.7(1/2) Gas Pipes mm(inch) 19.05(3/4) 22.2(7/8) 28.58(1-1/8)

Dimensions(WxHxD)

mm 920 × 1,680 × 760 920 × 1,680 × 760 920 × 1,680 × 760

inch 36.2 × 66.1 × 29.9 36.2 × 66.1 × 29.9 36.2 × 66.1 × 29.9

Net Weight

kg 175 218 218

lbs 385 480 480

Protection Devices

High pressure

protection

High pressure sensor,

High pressure switch

High pressure sensor,

High pressure switch

High pressure sensor,

High pressure switch

Comperssor/

Fan

Over-heat protection/

Fan

driver overload protector

Over-heat protection/

Fan

driver overload protector

Over-heat protection/

Fan

driver overload protector

Inverter

Over-heat protection,

Over-current protection

Over-heat protection,

Over-current protection

Over-heat protection,

Over-current protection

Communication Cable

mm2(VCTF-SB)

1.0 ~ 1.5 × 2C 1.0 ~ 1.5 × 2C 1.0 ~ 1.5 × 2C

Refigerant

Refigerant name R410A R410A R410A Control EEV EEV EEV

Power Supply Ø , V, Hz

3, 380~415, 50 3, 380~415, 50 3, 380~415, 50

3, 380, 60 3, 380, 60 3, 380, 60

Functions

LGE Internal Use Only

- 4 -

2. Functions

Category Function

Multi V III Solo – Heat pump

Defrost/ Deicing O High pressure switch O Phase protection O Restart delay(3-minutes) O Self diagnosis O Soft start O Trial operation O Auto operation(Artificial intelligence) O Auto restart operation O Network Solution(LGAP) O Power Distribution Indicator(PNU-D1S00) O

Reliability

Convenience

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.

Device Multi V III Solo – Heat pump

Central Controller

Simple Controller PQCSB101S0

AC Ez PQCSZ250S0

Function controller PQCSB101S0 + PQCSC101S0

Function Scheduler PQCSB101S0 + PQCSD130A0

AC Smart ll PQCSW320A1E

Expansion Kit PQCSE440U0

Option Kit PQCSE341A0 / PQCSE342A0

ACP PQCPA11A0E / PQCPB11A0E

AC Manager PQCSS520A0E

BNU

LONWORKS Gateway PQNFB16A1

BACnet Gateway PQNFB17B0

Do Kit PQNFP00T0

Power Distribution Indicator(PDI) PQNUD1S00

Cool / Heat Selector PRDSBM

ODU Dry Contact PQDSBCDVM0

Program LG MV Option

Other

Y branch Accessory

Header branch Accessory

Air Guide Accessory

Refrigerant Charging Kit PRAC1

LGE Internal Use Only

- 5 -

Dimensions

3.

Dimensions

Outdoor Unit

ARUN80LM3

Dimensions

LGE Internal Use Only

- 6 -

Outdoor Unit

ARUN100LM3

ARUN120LM3

LGE Internal Use Only

- 7 -

4. Piping Diagrams

Piping Diagrams

4.1 Heat Pump Model

4.1.1 8HP(UX2 1Comp.)

Cooling Operation

IDU Air

Temperat ure

IDU Hex

Thermis tor

Temperat ure

Thermis tor

M

Outdoor Unit

ODU Air

Temperature

Thermistor

ODU Hex.

Temperature

Thermistor

IDU Hex

Temperat ure

Thermis tor

M

Indoor Unit

Electr onic Expansion

Valve

Suction

Temperature

Thermistor

4 way Valve

2 Way Flare Connection

2 Way Flare Conn ection

Pressure

Switch

High

Pressure

High

Sensor

S

IDU Air

Temperat ure

IDU Hex

Thermis tor

Temperat ure

Thermistor

IDU Hex

Temperat ure

M

High Temperature High Pressure Gas High Temperature High Pressure Liquid Low Temperature Low Pressure Gas

Thermis tor

Gas Pipe - 2 Way Welding Connection

Indoor Unit

Electronic Expansion

Valve

2 Way Flare Conn ection

2 Way Flare Connection

Pressure

Sensor

Outdoor

Electronic

Expansion

Remar ks

Valve

Pressure Sensor

Press ure Switch

SC Circuit

Outlet

Temperature

Thermistor

Accumulator

Sub-Cooling HEX

Temperatur e Sens o

SVC Valv

Liquid pipe

Temperature

Thermistor

Low

Sub-Cooling

Electronic

Expansion

Valve

e

Oil Separator

Discharge

Temperature

Thermistor

Inverter Compressor

r

Liquid Pipe - 2 Way Welding Connection

Check v alv e

EEV

ss

Solenoid valve

Strainer