Haier R410A User Manual

System

Indoor Unit

SERVICE MANUAL R410A

MODEL : ARNU Series URNU 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

Air Conditioner Service Manual

TABLE OF CONTENTS

Safety Precautions............................................................................................................................3

Part 1 General Information.............................................................................................................10

Model Names .............................................................................................................................11

External Appearance .................................................................................................................12

Nomenclature .............................................................................................................................15

Part 2 Indoor Units.......................................................................................................................7

Ceiling Mounted Cassette Type (1 way).........................................................................................8

Ceiling Mounted Cassette Type (2 way).......................................................................................13

Ceiling Mounted Cassette Type (4 way)(1) ..................................................................................20

Ceiling Mounted Cassette Type (4 way)(2) ..................................................................................23

Art Cool Type(Mirror)....................................................................................................................30

Art Cool Type(Gallery) .................................................................................................................41

Ceiling Concealed Duct Type (Low static)....................................................................................51

Ceiling Concealed Duct Type (Built in).........................................................................................57

Ceiling Concealed Duct Type (High static)...................................................................................63

Wall Mounted Type.......................................................................................................................72

Ceiling & Floor Ceiling Suspended ..............................................................................................83

Floor Standing Type .....................................................................................................................90

Part 3 Trouble shooting guide.................................................................................97

- 2 -

LGE Internal Use Only

Part 1

General Information

1. Model Names .............................................4

2. External Appearance .................................5

3. Nomenclature .............................................6

- 3 -

LGE Internal Use Only

Model Names

1. Model Names

Category

Chassis

Name

Wall Mounted (General)

Mirror

ART COOL

ART Cool

Gallery

1 Way TJ

2 Way TL

Ceiling

Cassette

4 Way

High

Static

Ceiling

Concealed

Duct

Low Static

Built In

Ceiling & Floor VE

Ceiling Suspended VJ

With Case

Floor

Standing

Without

Case

SE

S5

SE

S3

SF

TE

TP

TN

TM

BH

BG

BR

B8

B1

B2

B3

B4

CE

CF

CE

CF

Capacity(Btu/h(kW))

7k 9k 12k 15k 18k 24k 28k 36k 42k 48k 76k 96k

(2.2) (2.8) (3.6) (4.5) (5.6) (7.1) (8.2) (10.6) (12.3) (14.1) (22.4) (28)

ARNU07

GSE*2

ARNU07

GSE*2

ARNU07

GSF*2

ARNU07

GTE*2

ARNU07

GBHA2

ARNU07

GB1G2

ARNU07

GB3G2

ARNU07

GCEA2

ARNU07

GCEU2

GTJ*2

ARNU09

GSE*2

ARNU09

GSE*2

ARNU09

GSF*2

ARNU09

GTJ*2

ARNU09

GTE*2

ARNU09

GBHA2

ARNU09

GB1G2

ARNU09

GB3G2

ARNU09G

VEA2

ARNU09

GCEA2

ARNU09

GCEU2

ARNU12

GSE*2

ARNU12

GSE*2

ARNU12

GSF*2

ARNU12

GTJ*2

ARNU12

GTE*2

ARNU12

GBHA2

ARNU12

GB1G2

ARNU12

GB3G2

ARNU12G

VEA2

ARNU12

GCEA2

ARNU12

GCEU2

ARNU15

GSE*2

ARNU15

GSE*2

ARNU15

GTE*2

ARNU15

GBHA2

ARNU15

GB1G2

ARNU15

GB3G2

ARNU15

GCEA2

ARNU15

GCEU2

ARNU18G

S5*2

ARNU18

GS3*2

ARNU18

GTL*2

ARNU18

GTE*2

ARNU24G

ARNU18

GBHA2

ARNU18

GB2G2

ARNU18

GB4G2

ARNU18

GVJA2

ARNU18

GCFA2

ARNU18

GCFU2

ARNU24G

S5*2

ARNU24

GS3*2

ARNU24

GTL*2

ARNU28G

TP*2

ARNU24

GBHA2

ARNU28

ARNU24

GB2G2

ARNU24

GB4G2

ARNU24

GVJA2

ARNU24

GCFA2

ARNU24

GCFU2

TP*2

GBGA2

ARNU36

GTN*2

ARNU36

GBGA2

ARNU42G

TM*2

ARNU42

GBGA2

ARNU48G

TM*2

ARNU48

GBRA2

URNU76

GB8A2

URNU96

GB8A2

❈ *

ART COOL- B: Blue, M:Metal, D:Wood, R:Mirror, W:White Wood, V:Silver, E:Red, G:Gold, 1: Kiss (Photo changeable)

*Wall Mounted- A: Basic, L:Plasma *Ceiling Cassette- A: Basic, C:Plasma

- 4 -

LGE Internal Use Only

2. External Appearance

Wall Mounted

ART COOL Mirror

Ceiling Cassette- 1Way

Ceiling Cassette- 4Way

Ceiling & Floor

Ceiling Suspended

ARNU07GTJ*2 ARNU09GTJ*2 ARNU12GTJ*2

Ceiling Cassette -2Way

ARNU18GTL*2 ARNU24GTL*2

ARNU07GTE*2 ARNU09GTE*2 ARNU12GTE*2 ARNU15GTE*2 ARNU18GTE*2

ARNU24GTP*2 ARNU28GTP*2 ARNU36GTN*2 ARNU42GTM*2 ARNU48GTM*2

Ceiling Concealed Duct - Low Static

ARNU07GB1G2 ARNU09GB1G2 ARNU12GB1G2

ARNU15GB1G2 ARNU18GB2G2 ARNU24GB2G2

ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2

ARNU15GSE*2 ARNU18GS5*2 ARNU24GS5*2

ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2 ARNU15GSE*2 ARNU18GS3*2 ARNU24GS3*2

ARNU09GVEA2 ARNU12GVEA2

ARNU18GVJA2 ARNU24GVJA2

Floor Standing With case

ARNU07GCEA2 ARNU09GCEA2 ARNU12GCEA2 ARNU15GCEA2 ARNU18GCFA2 ARNU24GCFA2

Without case

ARNU07GCEU2 ARNU09GCEU2 ARNU12GCEU2 ARNU15GCEU2 ARNU18GCFU2 ARNU24GCFU2

Ceiling Concealed Duct - High Static

ARNU07GBHA2 ARNU09GBHA2 ARNU12GBHA2 ARNU15GBHA2 ARNU18GBHA2 ARNU24GBHA2 ARNU28GBGA2

ARNU36GBGA2 ARNU42GBGA2 ARNU48GBRA2 URNU76GB8A2 URNU96GB8A2

Ceiling Concealed Duct – Built-in

ARNU07GB3G2 ARNU09GB3G2 ARNU12GB3G2

ARNU15GB3G2 ARNU18GB4G2 ARNU24GB4G2

* A:Basic, L:Plasma

ART COOL Gallery

ARNU07GSF*2 ARNU09GSF*2 ARNU12GSF*2

* E:Red V:Silver G:Gold 1: Kiss (Photo changeable)

* A:Basic, C:Plasma

* A:Basic, C:Plasma * A:Basic, C:Plasma

S3: * B : Blue

M : Metal D : Wood R : Mirror W : White Wood

SE: * R:Mirror

V:Silver B : Blue

External Appearance

- 5 -

LGE Internal Use Only

Nomenclature

ARN U G07 ATJ 2

Serial Number

Chassis Name

Electrical Ratings 1:1Ø, 115V, 60Hz 2: 1Ø, 220V, 60Hz

6:1Ø, 220 ~ 240V, 50Hz 7: 1Ø, 100V, 50/60Hz G:1Ø, 220 ~ 240V, 50Hz / 220V 60Hz

Total Cooling Capacity in Btu/h EX) 5,000 Btu/h➞'05' 18,000 Btu/h➞'18'

Combination of Inverter Type and Cooling Only or Heat Pump

N: AC Inverter and H/P V: AC Inverter and C/O U: DC Inverter and H/P and C/O

System with Indoor Unit using R410A

❈ LGETA:U Ex) URN

Combinations of functions A:Basic function L:Neo Plasma(Wall Mounted) C:Plasma(Ceiling Cassette) G: Low Static ART COOL Type Panel Color B:Blue D:Wood M:Metal R:Mirror W:White Wood V: Silver E:Red G:Gold 1: Kiss (Photo changeable)

3. Nomenclature

- 6 -

LGE Internal Use Only

Part 2

Indoor Units

Ceiling Cassette

1 Way .................................................................................8

2 Way ...............................................................................13

4 Way(1)...........................................................................20

4 Way(2)...........................................................................23

Art Cool Series

ART COOL Miror .............................................................30

ART COOL Gallery ..........................................................41

Ceiling Concealed Duct

Low Static ........................................................................51

Built In ..............................................................................57

High Static........................................................................63

Wall Mounted(General)

Wall Mounted ...................................................................72

Ceiling & Floor

Ceiling Suspended...........................................................83

Floor Standing

Floor Standing..................................................................90

- 7 -

LGE Internal Use Only

Ceiling Mounted Cassette Type (1Way)

1. Functions ......................................................................................9

2. Operation Details........................................................................10

3. Dimensions .................................................................................12

- 8 -

LGE Internal Use Only

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Specification

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Airflow Direction Control

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

Compact and light design

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• Jet, High, Med, Low, Lolow

• Intermittent operation of fan at low speed.

• The louver can be set at swing up and down automatically.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature will be reached at 25°C.

• To install a unit is very convenient because of smaller size than textile.

Low noise

Long life filter

High head Drain pump

High-Ceiling corresponding Function

Central Control(Optional)

• The most advanced low-noise design.

• The adoption of turbo fan and round type heat exchanger give the quietest operation.

• Long life wrinkle(type) and washable and anti-bacteria filter is adopted.

• Built-in drain pump automatically drains water.

• A standard drain-head height of up to 700mm is possible.

• According to the height of ceiling, the RPM of indoor fan motor is selected to increase air reaching distance.

•

It is operating individually or totally by central control function.

- 9 -

LGE Internal Use Only

Operation Detail

2. Operation Detail

(1) The function of main control

■ Auto Swing Control

• This function is to swing the louver up and down automatically.

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following

Intake Air Temperature

Thermo. ON (SET TEMPERATURE +0.5°C)

Thermo. OFF (SET TEMPERATURE -0.5°C)

INDOOR FAN Low Low

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selected Selected Selected

Speed Speed Speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 10 -

LGE Internal Use Only

25 °C

27 °C

35 °C 30 °C

22 °C

Pipe

temperature

OFF

Indoor fan

speed

LO

LOW

SELECTED

FAN

LOW

LOLOW

COMP ON

Operation Detail

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor pipe Temperature

36(42)°C

33(39)°C

25°C 22(20)°C

Room

Temperature

Thermal Off

Thermal On

Minimum

3min

Thermal

Outdoor fan

Indoor fan

4 Way ON

Stop Low

ON

Setting

fan

speed

Setting

fan

speed

OFF

OFF ON

Stop StopLow

ON

LowLow Low

Setting

fan

speed

Thermal ON Thermal OFF

Indoor Unit mode ST+2 ST+4

2TH To be selected lower temperature To be selected lower temperature

(Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

Remo. mode ST+0 ST+2

■ Hot-start Control

The indoor fan does no rotate until the evaporator piping temperature will be reached to 25°C.

The operation diagram is as following.

- 11 -

LGE Internal Use Only

Dimensions

4

2

1

3

860

32.8 410

344.4

961.2

16.5

19.1

50

83

36

30

242.5

173

151

100

56

83

138

131

110

16.4

.

198.8

480

939

1070

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: TJ

Ceiling Cassette 1-way

ARNU07GTJ*2

ARNU09GTJ*2

ARNU12GTJ*2

Name

1 Liquid pipe connection ø6.35 flare

2 Gas pipe connection ø12.7 flare

3 Air suction grill

4 Air discharge grill

Number Descripition

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

3. Dimensions

- 12 -

LGE Internal Use Only

Ceiling Mounted Cassette Type (2Way)

1. Functions ....................................................................................14

2. Operation Details........................................................................15

3. Dimensions .................................................................................17

- 13 -

LGE Internal Use Only

Functions

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Airflow Direction Control

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

Compact and light design

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• Jet, High, Med, Low, Lolow

• Intermittent operation of fan at low speed.

• The louver can be set at swing up and down automatically.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator pip- ing temperature will be reached at 25°C.

• To install a unit is very convenient because of smaller

size than textile.

Low noise

Long life filter

High head Drain pump

High-Ceiling corresponding Function

Central Control(Optional)

• The most advanced low-noise design.

• The adoption of turbo fan and round type heat exchang-

er give the quietest operation.

• Long life wrinkle(type) and washable and anti-bacteria filter is adopted.

• Built-in drain pump automatically drains water.

• A standard drain-head height of up to 700mm is possible.

• According to the height of ceiling, the RPM of indoor fan

motor is selected to increase air reaching distance.

•

It is operating individually or totally by central control function.

- 14 -

LGE Internal Use Only

Operation Detail

2. Operation Detail

(1) The function of main control

■ Auto Swing Control

• This function is to swing the louver up and down automatically.

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote con- troller and the operation diagram is as following

Intake Air Temperature

Thermo. ON (SET TEMPERATURE +0.5°C)

Thermo. OFF (SET TEMPERATURE -0.5°C)

INDOOR FAN Low Low

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selected Selected Selected

Speed Speed Speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 15 -

LGE Internal Use Only

25 °C

27 °C

35 °C 30 °C

22 °C

Pipe

temperature

OFF

Indoor fan

speed

LO

LOW

SELECTED

FAN

LOW

LOLOW

COMP ON

Operation Detail

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor pipe Temperature

36(42)°C

33(39)°C

25°C 22(20)°C

Room

Temperature

Thermal Off

Thermal On

Minimum

3min

Thermal

Outdoor fan

Indoor fan

4 Way ON

Stop Low

ON

Setting

fan

speed

Setting

fan

speed

OFF

OFF ON

Stop StopLow

ON

LowLow Low

Setting

fan

speed

Thermal ON Thermal OFF

Indoor Unit mode ST+2 ST+4

2TH To be selected lower temperature To be selected lower temperature

(Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

Remo. mode ST+0 ST+2

■ Hot-start Control

The indoor fan does no rotate until the evaporator piping temperature will be reached to 25°C.

The operation diagram is as following.

- 16 -

LGE Internal Use Only

3. Dimensions

830

A

B

47.9

275

550

69.5

889.2 1050

640

28.5

4

2

1

3

TL

A

B

225

126.5

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: TL

Ceiling Cassette 2-way

ARNU18GTL*2

ARNU24GTL*2

Name

1

Liquid pipe connection (18k) ø6.35, (24k)ø9.52

2

Gas pipe connection (18k) ø12.7, (24k)ø15.88

3

Air suction grill

4

Air discharge grill

Number Descripition

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

Dimensions

- 17 -

LGE Internal Use Only

Ceiling Mounted Cassette Type (4Way) (1)

1. Functions ....................................................................................19

2. Operation Details........................................................................20

3. Dimensions .................................................................................22

- 18 -

LGE Internal Use Only

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Functions

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Airflow Direction Control

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

Compact and light design

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• Jet, High, Med, Low, Lolow

• Intermittent operation of fan at low speed.

• The louver can be set at swing up and down automatically.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator pip- ing temperature will be reached at 25°C.

• To install a unit is very convenient because of smaller

size than textile.

Low noise

Long life filter

High head Drain pump

High-Ceiling corresponding Function

Central Control(Optional)

Swirl Swing Control

• The most advanced low-noise design.

• The adoption of turbo fan and round type heat exchang-

er give the quietest operation.

• Long life wrinkle(type) and washable and anti-bacteria filter is adopted.

• Built-in drain pump automatically drains water.

• A standard drain-head height of up to 700mm is possible.

• According to the height of ceiling, the RPM of indoor fan

motor is selected to increase air reaching distance.

•

It is operating individually or totally by central control function.

•

It is operating swirl swing

- 19 -

LGE Internal Use Only

Operation Detail

2. Operation Detail

(1) The function of main control

■ Auto Swing Control

• This function is to swing the louver up and down automatically.

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote con- troller and the operation diagram is as following

Intake Air Temperature

Thermo. ON (SET TEMPERATURE +0.5°C)

Thermo. OFF (SET TEMPERATURE -0.5°C)

INDOOR FAN Low Low

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selected Selected Selected

Speed Speed Speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

■ Swirl Swing Control

Vane 2, 4 is almost vane closed while vane1, 3 is opened.

Vane 1, 3 and vane 2,4 turn over minutely

Vane 2

- 20 -

Vane 1 Vane 3

Vane 4

LGE Internal Use Only

25 °C

27 °C

35 °C 30 °C

22 °C

Pipe

temperature

OFF

Indoor fan

speed

LO

LOW

SELECTED

FAN

LOW

LOLOW

COMP ON

Operation Detail

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor pipe Temperature

36(42)°C

33(39)°C

25°C 22(20)°C

Room

Temperature

Thermal Off

Thermal On

Minimum

3min

Thermal

Outdoor fan

Indoor fan

4 Way ON

Stop Low

ON

Setting

fan

speed

Setting

fan

speed

OFF

OFF ON

Stop StopLow

ON

LowLow Low

Setting

fan

speed

Thermal ON Thermal OFF

Indoor Unit mode ST+2 ST+4

2TH To be selected lower temperature To be selected lower temperature

(Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

Remo. mode ST+0 ST+2

■ Hot-start Control

The indoor fan does no rotate until the evaporator piping temperature will be reached to 25°C.

The operation diagram is as following.

- 21 -

LGE Internal Use Only

Dimensions

269

670

30

570

269

90

120.4

30

521

670

570

450

40

110 110

670

4

1

3

2

5

6

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: TE

Ceiling Cassette 4-way

ARNU07GTE*2

ARNU09GTE*2

ARNU12GTE*2

ARNU15GTE*2

ARNU18GTE*2

Name

1 Liquid pipe connection

Unit size(7k, 9k, 12k, 18k):ø6.35

2 Gas pipe connection

Unit size(7k, 9k, 12k, 18k):ø12.7

3 Drain pipe connection

4 Power supply connection

5 Air discharge grill

6 Air suction grill

Number Descripition

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

3. Dimensions

- 22 -

LGE Internal Use Only

Ceiling Mounted Cassette Type (4Way) (2)

1. Functions ....................................................................................24

2. Operation Details........................................................................25

3. Dimensions .................................................................................27

- 23 -

LGE Internal Use Only

Functions

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Airflow Direction Control

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

Compact and light design

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• Jet, High, Med, Low, Lolow

• Intermittent operation of fan at low speed.

• The louver can be set at swing up and down automatically.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator pip- ing temperature will be reached at 25°C.

• To install a unit is very convenient because of smaller

size than textile.

Low noise

Long life filter

High head Drain pump

High-Ceiling corresponding Function

Central Control(Optional)

Swirl Swing Control

• The most advanced low-noise design.

• The adoption of turbo fan and round type heat exchang-

er give the quietest operation.

• Long life wrinkle(type) and washable and anti-bacteria filter is adopted.

• Built-in drain pump automatically drains water.

• A standard drain-head height of up to 700mm is possible.

• According to the height of ceiling, the RPM of indoor fan

motor is selected to increase air reaching distance.

•

It is operating individually or totally by central control function.

•

It is operating swirl swing

- 24 -

LGE Internal Use Only

Operation Detail

2. Operation Detail

(1) The function of main control

■ Auto Swing Control

• This function is to swing the louver up and down automatically.

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote con- troller and the operation diagram is as following

Intake Air Temperature

Thermo. ON (SET TEMPERATURE +0.5°C)

Thermo. OFF (SET TEMPERATURE -0.5°C)

INDOOR FAN Low Low

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selected Selected Selected

Speed Speed Speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

■ Swirl Swing Control

Vane 2, 4 is almost vane closed while vane1, 3 is opened.

Vane 1, 3 and vane 2,4 turn over minutely

Vane 2

- 25 -

Vane 1 Vane 3

Vane 4

LGE Internal Use Only

25 °C

27 °C

35 °C 30 °C

22 °C

Pipe

temperature

OFF

Indoor fan

speed

LO

LOW

SELECTED

FAN

LOW

LOLOW

COMP ON

Operation Detail

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor pipe Temperature

36(42)°C

33(39)°C

25°C 22(20)°C

Room

Temperature

Thermal Off

Thermal On

Minimum

3min

Thermal

Outdoor fan

Indoor fan

4 Way ON

Stop Low

ON

Setting

fan

speed

Setting

fan

speed

OFF

OFF ON

Stop StopLow

ON

LowLow Low

Setting

fan

speed

Thermal ON Thermal OFF

Indoor Unit mode ST+2 ST+4

2TH To be selected lower temperature To be selected lower temperature

(Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

Remo. mode ST+0 ST+2

■ Hot-start Control

The indoor fan does no rotate until the evaporator piping temperature will be reached to 25°C.

The operation diagram is as following.

- 26 -

LGE Internal Use Only

3. Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: TP

Ceiling Cassette 4-way

ARNU24GTP*2

ARNU28GTP*2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

618

950

618

684

840

671

787

500(Air outlet hole)

99 82 60

500(Air outlet hole)

4-R20

292

734

787

840

60

80

108

54

950

25

204

40

65

Name

1

Liquid pipe connection Unit size(24k, 28k):ø9.52

2

Gas pipe connection Unit size(24k, 28k):ø15.88

3

Drain pipe connection

4

Power supply connection

5

Air discharge grill

6

Air suction grill

Number Descripition

(unit : mm)

4

3

1

5

6

2

204

804

154

A direction View

126

R35

62

A

Dimensions

- 27 -

LGE Internal Use Only

Dimensions

840

126

62

R35

246

195

A direction View

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: TN

Ceiling Cassette 4-way

ARNU36GTN*2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

Name

1

Liquid pipe connection Unit size(36k):ø9.52

2

Gas pipe connection Unit size(36k):ø15.88

3

Drain pipe connection

4

Power supply connection

5

Air discharge grill

6

Air suction grill

Number Descripition

(unit : mm)

4

3

1

5

6

2

A

- 28 -

LGE Internal Use Only

ARNU42GTM*2

ARNU48GTM*2

Ceiling Cassette 4-way

(unit : mm)

Name

Liquid pipe connection Unit size(42k):ø9.52

Gas pipe connection Unit size(48k):ø15.88

Air discharge grill

Drain pipe connection

Power supply connection

Dimensions

CHASSIS CODE: TM

Air suction grill

R35

109

126

A direction View

840

237

288

1

2

3

4

Number Descripition

A

5

Note

6

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

4

6

5

3

1

2

www.lgeaircon.com

641-713, Korea

76, Seongsan-dong, Changwon City, Gyeongnam,

- 29 -

LGE Internal Use Only

Art Cool Type(Mirror)

1. Functions ....................................................................................31

2. Operation Details........................................................................32

3. Dimensions .................................................................................39

- 30 -

LGE Internal Use Only

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

• Room temperature sensor. (THERMISTOR)

Room temperature control

• Maintains the room temperature in accordance with the Setting Temp.

Starting Current Control

• Indoor fan is delayed for 5 sec at the starting.

Indoor Fan Speed Control

• High, Med, Low, CHAOS

Functions

Operation indication Lamps (LED)

Signal Receptor Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps

On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation.

Soft Dry Operation Mode

• Intermittent operation of fan at low speed.

Sleep Mode Auto Control

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

Defrost(Deice) control (Heating)

Natural Air Control by CHAOS Logic

• The fan is switched to intermittent or irregular operation

•

The fan speed is automatically switched from high to low speed.

• Both the indoor and outdoor fan stops during defrosting.

Hot-start Control (Heating)

Airflow Direction Control

• The louver can be set at the desired position or swing up and down automatically.

- 31 -

• The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.

LGE Internal Use Only

Operation Details

2. Operation Details

Function of Controls

DISPLAY

1) High quality LCD remote controller supplied

Operation Indicator

• On while in appliance operation, off while in appliance pause

Timer Indicator

• On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled

Defrost Indicator

• Off except when hot start during heating mode operation or while in defrost control.

Plasma Indicator

• On while in plasma mode, off while plasma mode is canceled.

Auto restart Indicator

• On while auto restart mode, off while auto restart mode is canceled.

Auto restart

• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button.

Power(Forced Operation)

• Operation starts, when this button is pressed and stops when you press the button again.

■ Cooling Mode Operation

•

When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop.

• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp=> Setting Temp+0.5°C Compressor OFF Temp => Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote controller. While in compres-

sor not running, operating with the low airflow speed regardless of the setting.

- 32 -

LGE Internal Use Only

Operation Details

■ Healthy Dehumidification Mode

• When the dehumidification operation input by the remote controller is received, the intake air temperature is

detected and the setting temp is automatically set according to the intake air temperature. 26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp < 26°C => Intake Air Temp-1°C 18°C ≤ Intake Air Temp < 24°C => Intake Air Temp-0.5°C Intake Air Temp < 18°C => 18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification

operation and 4-min compressor off repeat Compressor ON Temp. => Setting Temp+0.5°C Compressor OFF Temp. => Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■ Heating Mode Operation

• When the intake air Temp. reaches Compressor OFF Temp., the compressor is turned off.

When the intake air Temp. reaches Compressor ON Temp., the compressor is turned on. Themo ON Temp. => Setting Temp. +2˚C Themo OFF Temp. => Setting Temp.+4°C

• While in compressor on, when above 38°C, it operates with setting airflow speed (while in sleep mode, with

the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C , when above 35°C , it

operates with the low airflow speed.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■ Defrost Control

• While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to

defrost of the outdoor unit.

■ Fuzzy Operation (Outdoor unit C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting

temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on. Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the

intake air temp at that time. 26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp<18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the

Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper-

ature

- 33 -

LGE Internal Use Only

Operation Details

■ Fuzzy Operation (Outdoor unit H/P Model)

• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C ≤ Inatake Air Temp => Fuzzy Operation for Cooling 21°C ≤ Inatake Air Temp<24°C => Fuzzy Operation for Dehumidification Inatake Air Temp<21°C => Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

- 34 -

LGE Internal Use Only

Operation Details

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation.

3) Fuzzy Operation for Heating

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp + 2°C Compressor OFF Temp => Setting Temp + 4°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

20°C ≤ Intake Air Temp => Intake Air Temp + 0.5°C Intake Air Temp < 20°C => 20°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature.

■ Airflow Speed Selection

• The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller.

■ On-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance starts to operate.

• The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached.

• If the appliance is operating at the time set by the timer, the operation continues.

■ Off-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance stops operating.

• The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached.

• If the appliance is on pause at the time set by the timer, the pause continues.

- 35 -

LGE Internal Use Only

Operation Details

■ Off-Timer <=> On-Timer Operation

• When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time.

■ Sleep Timer Operation

• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops.

• While the appliance is on pause, the sleep timer mode cannot be input.

• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1°C After another 30 min elapse, it increases by 1°C again.

• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to

the low.

• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium.

■ Chaos Swing Mode

• By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction.

■ Chaos Natural Wind Mode

• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation.”

■ Jet Cool Mode Operation (Outdoor unit C/O Model)

• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■ Jet Cool Mode Operation (Outdoor unit H/P Model)

• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.”

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■ Auto Restarting Operation

• When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory.

• Operation Mode that is kept on the memory

- 36 -

LGE Internal Use Only

Operation Details

- State of Operation ON/OFF

- Operation Mode/Setting Temp/Selected Airflow Speed

- Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour)

■ Forced Operation (Outdoor unit C/O Model)

• To operate the appliance by force in case that the remote controller is lost, the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed of

airflow.

■ Forced Operation (Outdoor unit H/P Model)

• To operate the appliance by force in case that the remote controller is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operation

condition is set according to the intake air temperature as follows.

24°C ≤ Intake Air Temp => Cooling Mode Operation, 22°C, High Speed 21°C ≤ Intake Air Temp < 24°C => Dehumidification Operation, 23°C, High Speed Intake Air Temp < 21°C => Heating Mode Operation, 24°C, High Speed

■ Test Operation Control

• To check the condition of the installation when installing the appliance, the appliance is operated at cooling mode, high speed of airflow, compressor-on for 18 min without controlling the room temperature.

• After supplying power to the main body, keep pressing the forced operation button for about 3 seconds.

• While in test operation, a key can be input by the remote controller.

When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, Jet Cool) is input by the remote controller, the test operation is canceled and the appliance is operated according to the setting by the remote controller.

■ Protection of the evaporator pipe from frosting

• In the temperrature of the indoor pipe is below 0°C after 7 minutes from starting the compressor, the compressor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the temperature of the indoor pipe is over 7°C, the compressor and the outdoor fan are reoperated.

• Outdoor fan motor stops when indoor pipe temperature is blow 3°C and restarts at the pipe temperature above 6°C or after 90 seconds, if the pipe temperature does not rise to 6°C, outdoor fan motor runs continuously at even below 3°C.

- 37 -

LGE Internal Use Only

Operation Details

■ Buzzer Sounding Operation

• When the appliance-operation key is input by the remote controller, the short “beep-beep-” sounds.

• When the appliance-pause key is input by the remote controller, the long “beep—” sounds.

■ Air Cleaner Operation

• When an air cleaner function is selected during Air Conditioner operation

- Plasma air cleaner function will be operated while in any operation mode with selecting the function.

- The function is to be stopped while it is operating with selecting the function.

• When an air cleaner function is selected during operation off

- The function will be only operated.

• When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again.

- 38 -

LGE Internal Use Only

3. Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: SE

ART COOL Mirror

ARNU07GSE*2

ARNU09GSE*2

ARNU12GSE*2

ARNU15GSE*2

WModel

ARNU07GSE*2

ARNU09GSE*2

ARNU12GSE*2

ARNU15GSE*2

HD

915 282 169

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

915

282

265

282

169

51

53

165

H

W

D

567

1

2

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

Dimensions

- 39 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: S3

ART COOL Mirror

ARNU18GS3*2

ARNU24GS3*2

WModel

ARNU18GS3*2

ARNU24GS3*2

HD

1170 315 173

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

D

H

W

1170

173

315

304

567

1

2

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

- 40 -

LGE Internal Use Only

ArtCoolGallery

1. Functions ....................................................................................42

2. Operation Details........................................................................43

3. Dimensions .................................................................................50

- 41 -

LGE Internal Use Only

Functions

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

• Room temperature sensor. (THERMISTOR)

Room temperature control

• Maintains the room temperature in accordance with the Setting Temp.

Starting Current Control

• Indoor fan is delayed for 5 sec at the starting.

Indoor Fan Speed Control

• High, Med, Low, CHAOS

Operation indication Lamps (LED)

Signal Receptor Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps

On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation.

Soft Dry Operation Mode

• Intermittent operation of fan at low speed.

Sleep Mode Auto Control

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

Defrost(Deice) control (Heating)

Natural Air Control by CHAOS Logic

• The fan is switched to intermittent or irregular operation

•

The fan speed is automatically switched from high to low speed.

• Both the indoor and outdoor fan stops during defrosting.

Hot-start Control (Heating)

Airflow Direction Control

• The louver can be set at the desired position or swing up and down automatically.

- 42 -

• The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.

LGE Internal Use Only

Operation Details

2. Operation Details

Function of Controls

DISPLAY

1) High quality LCD remote controller supplied

Operation Indicator

• On while in appliance operation, off while in appliance pause

Timer Indicator

• On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled

Defrost Indicator

• Off except when hot start during heating mode operation or while in defrost control.

Plasma Indicator

• On while in plasma mode, off while plasma mode is canceled.

Auto restart Indicator

• On while auto restart mode, off while auto restart mode is canceled.

Auto restart

• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button.

Power(Forced Operation)

• Operation starts, when this button is pressed and stops when you press the button again.

■ Cooling Mode Operation

•

When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop.

• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp=> Setting Temp+0.5°C Compressor OFF Temp => Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting.

- 43 -

LGE Internal Use Only

Operation Details

■ Healthy Dehumidification Mode

• When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp < 26°C => Intake Air Temp-1°C 18°C ≤ Intake Air Temp < 24°C => Intake Air Temp-0.5°C Intake Air Temp < 18°C => 18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification

operation and 4-min compressor off repeat Compressor ON Temp. => Setting Temp+0.5°C Compressor OFF Temp. => Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■ Heating Mode Operation

• When the intake air Temp. reaches Compressor OFF Temp., the compressor is turned off. When the intake air Temp. reaches Compressor ON Temp., the compressor is turned on.

Themo ON Temp. => Setting Temp. +2˚C Themo OFF Temp. => Setting Temp.+4°C

• While in compressor on, when above 38°C, it operates with setting airflow speed (while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C , when above 35°C , it operates with the low airflow speed.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■ Defrost Control

• While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to defrost of the outdoor unit.

■ Fuzzy Operation (Outdoor unit C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp<18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature

- 44 -

LGE Internal Use Only

Operation Details

■ Fuzzy Operation (Outdoor unit H/P Model)

• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C ≤ Inatake Air Temp => Fuzzy Operation for Cooling 21°C ≤ Inatake Air Temp<24°C => Fuzzy Operation for Dehumidification Inatake Air Temp<21°C => Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

- 45 -

LGE Internal Use Only

Operation Details

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation.

3) Fuzzy Operation for Heating

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp + 2°C Compressor OFF Temp => Setting Temp + 4°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 20°C ≤ Intake Air Temp => Intake Air Temp + 0.5°C Intake Air Temp < 20°C => 20°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature.

■ Airflow Speed Selection

• The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller.

■ On-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance starts to operate.

• The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached.

• If the appliance is operating at the time set by the timer, the operation continues.

■ Off-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance stops operating.

• The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached.

• If the appliance is on pause at the time set by the timer, the pause continues.

- 46 -

LGE Internal Use Only

Operation Details

■ Off-Timer <=> On-Timer Operation

• When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time.

■ Sleep Timer Operation

• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops.

• While the appliance is on pause, the sleep timer mode cannot be input.

• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1°C After another 30 min elapse, it increases by 1°C again.

• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to

the low.

• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium.

■ Chaos Swing Mode

• By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction.

■ Chaos Natural Wind Mode

• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation.”

■ Jet Cool Mode Operation (Outdoor unit C/O Model)

• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■ Jet Cool Mode Operation (Outdoor unit H/P Model)

• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.”

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■ Auto Restarting Operation

• When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory.

• Operation Mode that is kept on the memory

- 47 -

LGE Internal Use Only

Operation Details

- State of Operation ON/OFF

- Operation Mode/Setting Temp/Selected Airflow Speed

- Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour)

■ Forced Operation (Outdoor unit C/O Model)

• To operate the appliance by force in case that the remote controller is lost, the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed of

airflow.

■ Forced Operation (Outdoor unit H/P Model)

• To operate the appliance by force in case that the remote controller is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operation

condition is set according to the intake air temperature as follows. 24°C ≤ Intake Air Temp => Cooling Mode Operation, 22°C, High Speed 21°C ≤ Intake Air Temp < 24°C => Dehumidification Operation, 23°C, High Speed Intake Air Temp < 21°C => Heating Mode Operation, 24°C, High Speed

■ Test Operation Control

• To check the condition of the installation when installing the appliance, the appliance is operated at cooling mode, high speed of airflow, compressor-on for 18 min without controlling the room temperature.

• After supplying power to the main body, keep pressing the forced operation button for about 3 seconds.

• While in test operation, a key can be input by the remote controller.

When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, Jet Cool) is input by the remote controller, the test operation is canceled and the appliance is operated according to the setting by the remote controller.

■ Protection of the evaporator pipe from frosting

• In the temperrature of the indoor pipe is below 0°C after 7 minutes from starting the compressor, the compressor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the temperature of the indoor pipe is over 7°C, the compressor and the outdoor fan are reoperated.

• Outdoor fan motor stops when indoor pipe temperature is blow 3°C and restarts at the pipe temperature above 6°C or after 90 seconds, if the pipe temperature does not rise to 6°C, outdoor fan motor runs continuously at even below 3°C.

- 48 -

LGE Internal Use Only

Operation Details

■ Buzzer Sounding Operation

• When the appliance-operation key is input by the remote controller, the short “beep-beep-” sounds.

• When the appliance-pause key is input by the remote controller, the long “beep—” sounds.

■ Air Cleaner Operation

• When an air cleaner function is selected during Air Conditioner operation

- Plasma air cleaner function will be operated while in any operation mode with selecting the function.

- The function is to be stopped while it is operating with selecting the function.

• When an air cleaner function is selected during operation off

- The function will be only operated.

• When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again.

- 49 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: SF

ART COOL Gallery

ARNU07GSF*2

ARNU09GSF*2

ARNU12GSF*2

WModel

ARNU07GSF*2

ARNU09GSF*2

ARNU12GSF*2

HD

600 600 146

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

Pipe Hole

Fix Hole

Hanger Hole

H

W

D

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

1

2

1

500

525

3. Dimensions

- 50 -

LGE Internal Use Only

Ceiling Concealed Duct Type (Low static)

1. Funtions ......................................................................................52

2. Operation Details........................................................................53

3. Dimensions .................................................................................56

- 51 -

LGE Internal Use Only

Functions

1. Funtions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

High head height Drain pump

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• High, Med, Low

• Intermittent operation of fan at low speed.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature reaches 25°C.

• A standard drain-head height of up to 700mm is possible.

Central Control(Optional)

•

It is operating individually or totally by central control function.

- 52 -

LGE Internal Use Only

Operation Details

2. Operation Details

(1) The function of main control

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following.

Intake Air Temperature

SET TEMPERATURE +0.5°C (Thermo. ON)

SET TEMPERATURE -0.5°C (Thermo. OFF)

INDOOR FAN Low Low

COMPRESSOR ON OFF ON OFF ON

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selecting Selecting Selecting

fan speed fan speed fan speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 53 -

LGE Internal Use Only

Operation Details

Thermal

Outdoor fan

Indoor fan

4way valve

Setting Temperature

(Thermal ON)

Setting Temperature

+3°C

(Thermal OFF)

Indoor unit Heat-Exchanger temperature

T

LT

T

ST

1min

Minimum

3min

1min

3min

Setting

fan

spped

Setting

fan

spped

Setting

fan

spped

40°C

T

On

T

Off

ON

Low

LowLowLowLow

OffOffOff

ON

OFF

Low fan during 10sec

A

B

C

B

Intake Air Temperature

• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates at low speed, when it becomes lower than 40°C fan stops.

- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.

- To be operated "Low" except initial Hotstart operation

C

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Chassis

Hotstart On T

Hotstart Off T

Low temperature T

Setting Temperature T

On

Off

LT

High Static Low Static Convertible

BH BG BR

B1 B2 CE CF VE VJ

19°C19°C19°C19°C19°C19°C19°C26°C26°C

22°C22°C22°C22°C22°C22°C22°C27°C27°C

25°C25°C25°C25°C25°C25°C25°C28°C28°C

27°C27°C27°C27°C27°C27°C27°C30°C30°C

ST

- 54 -

LGE Internal Use Only

Operation Details

■ Hot-Start Control

• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30°C.

• The operation diagram is as following.

Indoor unit

Heat-Exchanger

temperature

Hotstart Off

Hotstart On

1 min

Thermal Outdoor fan

Indoor fan

Off Off LowLow

4way Valve

• Initial Hotstart On state

➀ Power Off ➠ On ➁ Operation Off ➠ On ➂ Cooling operation ➠ Heating operation ➃ Defrost operation

ON ON

Setting fan

speed

ON

Setting fan

speed

- 55 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: B1/B2

Ceiling Concealed Duct (Low Static)

ARNU07GB1G2

ARNU09GB1G2

ARNU12GB1G2

ARNU15GB1G2

ARNU18GB2G2

ARNU24GB2G2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

A

383

575

161

14

154

190

18

18 B

C

13

D

820

ABCD

ARNU07GB1G2

ARNU09GB1G2

ARNU12GB1G2

ARNU15GB1G2

ARNU18GB2G2

ARNU24GB2G2

728 856 794

1100 1008 1131 1072

(unit: mm)

190

65

60

277

216

24

Name

1

Liquid pipe connection

2

Gas pipe connection

3

Drain pipe connection

4

Power supply connection

5

Air discharge

6

Air suction

Number Descripition

(unit : mm)

Unit size(7k,9k,12k,18k):ø6.35

Unit size(24k):ø9.52

Unit size(7k,9k,12k,18k):ø12.7

Unit size(24k):ø15.88

5

6

2

1

3

4

3. Dimensions

- 56 -

LGE Internal Use Only

Ceiling Concealed Duct Type (Built in)

1. Funtions ......................................................................................58

2. Operation Details........................................................................59

3. Dimensions .................................................................................62

- 57 -

LGE Internal Use Only

Functions

1. Funtions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

High head height Drain pump

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• High, Med, Low

• Intermittent operation of fan at low speed.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature reaches 25°C.

• A standard drain-head height of up to 700mm is possible.

Central Control(Optional)

•

It is operating individually or totally by central control function.

- 58 -

LGE Internal Use Only

Operation Details

2. Operation Details

(1) The function of main control

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following.

Intake Air Temperature

SET TEMPERATURE +0.5°C (Thermo. ON)

SET TEMPERATURE -0.5°C (Thermo. OFF)

INDOOR FAN Low Low

COMPRESSOR ON OFF ON OFF ON

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selecting Selecting Selecting

fan speed fan speed fan speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 59 -

LGE Internal Use Only

Operation Details

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor unit Heat-Exchanger temperature

Intake Air Temperature

Setting Temperature

(Thermal OFF)

Setting Temperature

(Thermal ON)

Thermal

Outdoor fan

Indoor fan

4way valve

40°C

T

ST

T

LT

T

Off

T

On

+3°C

1min

ON ON

Setting

fan

spped

Setting

spped

ON

fan

3min

Minimum

3min

OFF OFF

LowLowLowLow

A

Low fan during 10sec

B

1min

ON ON

C

OffOffOff

Low

Setting

fan

spped

• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates at low speed, when it becomes lower than 40°C fan stops.

- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.

- To be operated "Low" except initial Hotstart operation

A

B

C

High Static Low Static Convertible

Chassis

Hotstart On T

Hotstart Off T

Low temperature T

On

Off

LT

Setting Temperature T

ST

BH BG BR

B1 B2 CE CF VE VJ

19°C19°C19°C19°C19°C19°C19°C26°C26°C

22°C22°C22°C22°C22°C22°C22°C27°C27°C

25°C25°C25°C25°C25°C25°C25°C28°C28°C

27°C27°C27°C27°C27°C27°C27°C30°C30°C

- 60 -

LGE Internal Use Only

Operation Details

■ Hot-Start Control

• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30°C.

• The operation diagram is as following.

Indoor unit

Heat-Exchanger

temperature

Hotstart Off

Hotstart On

1 min

Thermal Outdoor fan

Indoor fan

Off Off LowLow

4way Valve

• Initial Hotstart On state

➀ Power Off ➠ On ➁ Operation Off ➠ On ➂ Cooling operation ➠ Heating operation ➃ Defrost operation

ON ON

Setting fan

speed

ON

Setting fan

speed

- 61 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: B3/B4

Ceiling Concealed Duct (Built in)

ARNU07GB3G2+PBSGB30(Acc'y), PBSC30(Acc'y)

ARNU09GB3G2+PBSGB30(Acc'y), PBSC30(Acc'y)

ARNU12GB3G2+PBSGB30(Acc'y), PBSC30(Acc'y)

ARNU15GB3G2+PBSGB30(Acc'y), PBSC30(Acc'y)

ARNU18GB4G2+PBSGB40(Acc'y), PBSC40(Acc'y)

ARNU24GB4G2+PBSGB40(Acc'y), PBSC40(Acc'y)

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

With Suction Grille

With Suction Grille & Suction Canvas

B3/B4

A

With Suction Grille

& Suction Canvas

With Suction Grille

A

C

B

A

B

C

Btu/h A

7,9,12k 820

18,24k 1100

ABC

PBSGB30 910 359 56

PBSGB40 1188 359 56

ABC

PBSC30 821 274 42~250

PBSC40 1100 274 42~250

250

190

618

388

190

500(Max)

575

388

190

65

60

277

216

24

Name

1

Liquid pipe connection

2

Gas pipe connection

3

Drain pipe connection

4

Power supply connection

5

Air discharge

6

Air suction

Number Descripition

(unit : mm)

Unit size(7k,9k,12k,18k):ø6.35

Unit size(24k):ø9.52

Unit size(7k,9k,12k,18k):ø12.7

Unit size(24k):ø15.88

6

5

1

3

4

2

3. Dimensions

- 62 -

LGE Internal Use Only

Ceiling Concealed Duct Type (High Static)

1. Funtions ......................................................................................64

2. Operation Details........................................................................65

3. Dimensions .................................................................................68

- 63 -

LGE Internal Use Only

Funtion

1. Funtions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

High head height Drain pump

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• High, Med, Low

• Intermittent operation of fan at low speed.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature reaches 30°C.

• A standard drain-head height of up to 700mm is possible.

Central Control(Optional)

•

It is operating individually or totally by central control function.

- 64 -

LGE Internal Use Only

Operation Details

2. Operation Details

(1) The function of main control

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following.

Intake Air Temperature

SET TEMPERATURE +0.5°C (Thermo. ON)

SET TEMPERATURE -0.5°C (Thermo. OFF)

INDOOR FAN Low Low

COMPRESSOR ON OFF ON OFF ON

Selecting Selecting Selecting

fan speed fan speed fan speed

More than More than

3 minutes 3 minutes

- 65 -

LGE Internal Use Only

Operation Details

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor unit Heat-Exchanger temperature

Intake Air Temperature

Setting Temperature

(Thermal OFF)

Setting Temperature

(Thermal ON)

Thermal

Outdoor fan

Indoor fan

4way valve

40°C

T

ST

T

LT

T

Off

T

On

+3°C

1min

ON ON

Setting

fan

spped

Setting

spped

ON

fan

3min

Minimum

3min

OFF OFF

LowLowLowLow

A

Low fan during 10sec

B

1min

ON ON

C

OffOffOff

Low

Setting

fan

spped

• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates at low speed, when it becomes lower than 40°C fan stops.

- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.

- To be operated "Low" except initial Hotstart operation

A

B C

High Static Low Static Convertible

Chassis

Hotstart On T

Hotstart Off T

Low temperature T

On

Off

LT

Setting Temperature T

ST

BH BG BR

B1 B2 CE CF VE VJ

19°C19°C19°C19°C19°C19°C19°C26°C26°C

22°C22°C22°C22°C22°C22°C22°C27°C27°C

25°C25°C25°C25°C25°C25°C25°C28°C28°C

27°C27°C27°C27°C27°C27°C27°C30°C30°C

- 66 -

LGE Internal Use Only

Operation Details

■ Hot-Start Control

• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 22°C.

• The operation diagram is as following.

Indoor unit

Heat-Exchanger

temperature

Hotstart Off

Hotstart On

1 min

Thermal Outdoor fan

Indoor fan

Off Off LowLow

4way Valve

• Initial Hotstart On state

➀ Power Off ➠ On ➁ Operation Off ➠ On ➂ Cooling operation ➠ Heating operation ➃ Defrost operation

ON ON

Setting fan

speed

ON

Setting fan

speed

- 67 -

LGE Internal Use Only

Dimensions

3. Dimensions

ARNU07GBHA2

ARNU09GBHA2

ARNU12GBHA2

ARNU15GBHA2

ARNU18GBHA2

(unit : mm)

Unit size(7k,9k,12k,18k):ø6.35

Unit size(24k):ø9.52

ARNU24GBHA2

Unit size(7k,9k,12k,18k):ø12.7

Unit size(24k):ø15.88

CHASSIS CODE: BH

Name

Gas pipe connection

Ceiling Concealed Duct (High Static)

165

52

48

3151

101

29

70

50

4

115745

Liquid pipe connection

1

Number Descripition

100

355

2

140

123

1

450

133

Air suction

Air discharge

Drain pipe connection

Power supply connection

3

4

5

6

3

260

2

47

108

30

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

641-713, Korea

www.lgeaircon.com

76, Seongsan-dong, Changwon City, Gyeongnam,

65

119

243

932

6

24

175

20

49

114

224

R37.5

355

450

0

6

87

882

750

5

21

47

75

158

212

243

64

450

260

- 68 -

882

LGE Internal Use Only

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: BG

Ceiling Concealed Duct (High Static)

ARNU28GBGA2

ARNU36GBGA2

ARNU42GBGA2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

261

122

140

47

53

165

3251

10 2

50

10 0

87

830

29

75

355

87

1,230

450

23

49

10 8

1,182

158113

298

186

232

243

232

1151,043

20

220

3

2

5

1

4

6

Name

1

Liquid pipe connection

Unit size(28k,36k,42k):ø9.52

2

Gas pipe connection

Unit size(28k,36k,42k):ø15.88

3

Drain pipe connection

4

Power supply connection

5

Air discharge

6

Air suction

Number Descripition

(unit : mm)

152

224

60

ø100

1,182

450

Dimensions

- 69 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: BR

Ceiling Concealed Duct (High Static)

ARNU48GBRA2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

221

123

72

26

83

101

90

135

122

144

260

190

115

1,284

477

56

590

118

1,004

114

1,230

50

32

168

185

215

279

241

279

380

140

215

1201,092

25

303

Name

1

Liquid pipe connection

Unit size(48k):ø9.52

2

Gas pipe connection

Unit size(48k):ø15.88

3

Drain pipe connection

4

Power supply connection

5

Air discharge

6

Air suction

Number Descripition

(unit : mm)

3

2

1

5

6

4

198

312

60

R60

590

1,230

- 70 -

LGE Internal Use Only

URNU76GB8A2

URNU96GB8A2

(unit : mm)

Unit size(76k,96k):ø9.52

Unit size(76k):ø19.05

Unit size(96k):ø22.2

Dimensions

CHASSIS CODE: B8

Name

Ceiling Concealed Duct (High Static)

2

3

70

120

140

99

Number Descripition

1

60122

70

64

18

58

4

115

68

109

688

560

Air suction

Air discharge

Gas pipe connection

Liquid pipe connection

1

Drain pipe connection

3

2

358

30

64

Power supply connection

4

5

6

Note

290

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

161

641-713, Korea

www.lgeaircon.com

76, Seongsan-dong, Changwon City, Gyeongnam,

1,396

20

440

1,622

1,562

6

460

1,220

- 71 -

1,562

460

329 320 329

293

688

5

318

LGE Internal Use Only

Wall Mountedd Type

1. Functions ....................................................................................73

2. Operation Details........................................................................74

3. Dimensions .................................................................................81

- 72 -

LGE Internal Use Only

1. Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

• Room temperature sensor. (THERMISTOR)

Room temperature control

• Maintains the room temperature in accordance with the Setting temperature

Starting Current Control

• Indoor fan is delayed for 5 sec at the starting.

Indoor Fan Speed Control

• High, Med, Low, CHAOS

Functions

Operation indication Lamps (LED)

Signal Receptor Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps

On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation. Temperature : Indicate the setting temperature.

Soft Dry Operation Mode

• Intermittent operation of fan at low speed.

Sleep Mode Auto Control

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

Defrost(Deice) control (Heating)

Natural Air Control by CHAOS Logic

• The fan is switched to intermittent or irregular operation

•

The fan speed is automatically switched from high to low speed.

• Both the indoor and outdoor fan stops during defrosting.

Hot-start Control (Heating)

Airflow Direction Control

• The louver can be set at the desired position or swing up and down automatically.

- 73 -

• The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.

LGE Internal Use Only

Operation Details

2. Operation Details

Function of Controls

DISPLAY

(1) High quality LCD remote controller supplied

Operation Indicator

• On while in appliance operation, off while in appliance pause

Timer(on/off) and Sleep timer Indicator

• On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled

Defrost Indicator

• Off except when hot start during heating mode operation or while in defrost control.

Plasma Indicator

• On while in plasma mode, off while plasma mode is canceled.

Auto restart

• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button.

Power(Forced Operation)

• Operation starts, when this button is pressed and stops when you press the button again.

■ Cooling Mode Operation

•

When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop.

• When it reaches 0.5°C above the setting temp, they start to operate again. Compressor ON Temp=> Setting Temp+0.5°C Compressor OFF Temp => Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting.

- 74 -

LGE Internal Use Only

Operation Details

■ Healthy Dehumidification Mode

• When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp < 26°C => Intake Air Temp-1°C 18°C ≤ Intake Air Temp < 24°C => Intake Air Temp-0.5°C Intake Air Temp < 18°C => 18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification

operation and 4-min compressor off repeat

Compressor ON Temp. => Setting Temp+0.5°C Compressor OFF Temp. => Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■ Heating Mode Operation

• When the intake air temp reaches +3°Cabove the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Thermo ON Temp. => Setting Temp. +2°C Thermo OFF Temp. => Setting Temp. +4°C

• While in compressor on, when above 38°C , it operates with or setting airflow speed (while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C , when above 35°C , it operates with the low airflow speed.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■ Defrost Control

• While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to defrost the outdoor unit.

■ Fuzzy Operation (Outdoor unit C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

- 75 -

LGE Internal Use Only

Operation Details

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp<18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature

■ Fuzzy Operation (Outdoor unit H/P Model)

• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C ≤ Inatake Air Temp => Fuzzy Operation for Cooling 21°C ≤ Inatake Air Temp<24°C => Fuzzy Operation for Dehumidification Inatake Air Temp<21°C => Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C Compressor OFF Temp => Setting Temp+0.5°C

- 76 -

LGE Internal Use Only

Operation Details

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C ≤ Intake Air Temp => 25°C 24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C 22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C 18°C ≤ Intake Air Temp<22°C => Intake Air Temp Intake Air Temp < 18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation.

3) Fuzzy Operation for Heating

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp. +2°C Compressor OFF Temp => Setting Temp. +4°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

20°C ≤ Intake Air Temp => Intake Air Temp + 0.5°C Intake Air Temp < 20°C => 20°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature.

■ Airflow Speed Selection

• The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller.

■ On-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance starts to operate.

• The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached.

• If the appliance is operating at the time set by the timer, the operation continues.

■ Off-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance stops operating.

• The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached.

• If the appliance is on pause at the time set by the timer, the pause continues.

- 77 -

LGE Internal Use Only

Operation Details

■ Off-Timer <=> On-Timer Operation

• When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time.

■ Sleep Timer Operation

• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops.

• While the appliance is on pause, the sleep timer mode cannot be input.

• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1°C After another 30 min elapse, it increases by 1°C again.

• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to

the low.

• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium.

■ Chaos Swing Mode

• By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction.

■ Chaos Natural Wind Mode

• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation.”

■ Jet Cool Mode Operation (Outdoor unit C/O Model)

• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• During the JET COOL function at any moment, the A/C starts to blow the cool air with side louvers closed at extremely high speed for 30 minutes setting the room temp. automatically to 18°C.

■ Jet Cool Mode Operation (Outdoor unit H/P Model)

• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.”

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• During the JET HEAT function at any moment, the A/C starts to blow the hot air with side louvers closed at extremely high speed for 60 minutes setting the room temp. automatically to 30°C.

■ Auto Restarting Operation

• When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory.

• Operation Mode that is kept on the memory

- State of Operation ON/OFF

- 78 -

LGE Internal Use Only

- Operation Mode/Setting Temp/Selected Airflow Speed

- Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour)

■ Forced Operation

• Operation procedures when the remote control can't be used.

• The operation will be started if the power button is pressed.

• If you want to stop operation, re-press the button.

Operation Details

Cooling Model

Operating mode Cooling Cooling Healthy Dehumidification Heating

Indoor Fan Speed

Setting Temperature

High High High High

22°C22°C23°C24°C

Room Temp. ≥ 24°C21°C ≤ Room Temp. < 24°C Room Temp. < 21°C

Heat pump Model

• While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation.

■ Test operation

•

During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room tem-

perature and resets in 18±1 minutes.

•

During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, Press and hold ON/OFF button 3~5 seconds, then the buzzer sound 1 "beep".

•

If you want to stop the operation, re-press the button.

■ Protection of the evaporator pipe from frosting

• If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause while in cooling cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting.

• When the indoor pipe temp is 7°C or higher after 3 min. pause of the compressor, the compressor and the outdoor fan is turned on according to the condition of the room temperature.

■ Buzzer Sounding Operation

• When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds.

• When the appliance-pause key is input by the remote control, the long "beep—" sounds.

• When a key is input by the remote control while the slide switch on the main unit of the appliance is on the

forced operation position, the error sound "beep-beep-beep-beep-beep-" is made 10 times to indicate that the remote control signal cannot be received.

- 79 -

LGE Internal Use Only

Operation Details

■ Air Cleaner Operation

• When an air cleaner function is selected during Air Conditioner operation

- Plasma air cleaner function will be operated while in any operation mode with selecting the function.

- The function is to be stopped while it is operating with selecting the function.

• When an air cleaner function is selected during operation off

- The function will be only operated.

• When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again.

- 80 -

LGE Internal Use Only

3. Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: SE

Wall Mounted

ARNU07GSE*2

ARNU09GSE*2

ARNU12GSE*2

ARNU15GSE*2

WModel

ARNU07GSE*2

ARNU09GSE*2

ARNU12GSE*2

ARNU15GSE*2

HD

895 282 165

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

165

895

282

567

265

2

1

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

Dimensions

- 81 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: S5

Wall Mounted

ARNU18GS5*2

ARNU24GS5*2

WModel

ARNU18GS5*2

ARNU24GS5*2

HD

1090 300 178

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

(unit : mm)

1,090

178

300

281

804

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

1

2

- 82 -

LGE Internal Use Only

Ceiling & Floor

Ceiling Suspended

1. Funtions ......................................................................................84

2. Operation Details........................................................................85

3. Dimensions .................................................................................88

- 83 -

LGE Internal Use Only

Function

1. Function

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

High head height Drain pump

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• High, Med, Low

• Intermittent operation of fan at low speed.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature reaches 25°C.

• A standard drain-head height of up to 700mm is possible.

Central Control(Optional)

•

It is operating individually or totally by central control function.

- 84 -

LGE Internal Use Only

Operation Details

2. Operation Details

(1) The function of main control

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following.

Intake Air Temperature

SET TEMPERATURE +0.5°C (Thermo. ON)

SET TEMPERATURE -0.5°C (Thermo. OFF)

INDOOR FAN Low Low

COMPRESSOR ON OFF ON OFF ON

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selecting Selecting Selecting

fan speed fan speed fan speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 85 -

LGE Internal Use Only

Operation Details

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor unit Heat-Exchanger temperature

Intake Air Temperature

Setting Temperature

(Thermal OFF)

Setting Temperature

(Thermal ON)

Thermal

Outdoor fan

Indoor fan

4way valve

40°C

T

ST

T

LT

T

Off

T

On

+3°C

1min

ON ON

Setting

fan

spped

Setting

spped

ON

fan

3min

Minimum

3min

OFF OFF

LowLowLowLow

A

Low fan during 10sec

B

1min

ON ON

C

OffOffOff

Low

Setting

fan

spped

• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates at low speed, when it becomes lower than 40°C fan stops.

- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.

- To be operated "Low" except initial Hotstart operation

A

B C

High Static Low Static Convertible

Chassis

Hotstart On T

Hotstart Off T

Low temperature T

On

Off

LT

Setting Temperature T

ST

BH BG BR

B1 B2 CE CF VE VJ

19°C19°C19°C19°C19°C19°C19°C26°C26°C

22°C22°C22°C22°C22°C22°C22°C27°C27°C

25°C25°C25°C25°C25°C25°C25°C28°C28°C

27°C27°C27°C27°C27°C27°C27°C30°C30°C

- 86 -

LGE Internal Use Only

Operation Details

■ Hot-Start Control

• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30°C.

• The operation diagram is as following.

Indoor unit

Heat-Exchanger

temperature

Hotstart Off

Hotstart On

1 min

Thermal Outdoor fan

Indoor fan

Off Off LowLow

4way Valve

• Initial Hotstart On state

➀ Power Off ➠ On ➁ Operation Off ➠ On ➂ Cooling operation ➠ Heating operation ➃ Defrost operation

ON ON

Setting fan

speed

ON

Setting fan

speed

- 87 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: VE

Ceiling & Floor

ARNU09GVEA2

ARNU12GVEA2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

Signal receiver & Operation indicator

Air suction grill

Air discharge grill

WModel

ARNU09GVEA2

ARNU12GVEA2

HD

900 490 200

(unit : mm)

587

879

24

900

200

490

273

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

2

1

3. Dimensions

- 88 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: VJ

Ceiling Suspended

ARNU18GVJA2

ARNU24GVJA2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

41

800

950

220

650

(Ceiling Suspended type)

WModel

ARNU18GVJA2

ARNU24GVJA2

HD

950 650 220

(unit : mm)

2

1

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

- 89 -

LGE Internal Use Only

Floor Standing Type

1. Function ......................................................................................91

2. Operation Details........................................................................92

3. Dimensions .................................................................................95

- 90 -

LGE Internal Use Only

1. Function

Indoor Unit

Operation ON/OFF by Remote controller

Function

Sensing the Room Temperature

Room temperature control

Starting Current Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Auto Restart

Deice (defrost) control (Heating)

Hot-start Control (Heating)

High head height Drain pump

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply.

• Indoor fan is delayed for 5 seconds at the starting.

• High, Med, Low

• Intermittent operation of fan at low speed.

• Room temperature sensor. (Thermistor)

•

Maintains the room temperature in accordance with the Setting Temperature.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan does not rotate until the evaporator piping temperature reaches 25°C.

• A standard drain-head height of up to 700mm is possible.

Central Control(Optional)

•

It is operating individually or totally by central control function.

- 91 -

LGE Internal Use Only

Operation Details

2. Operation Details

(1) The function of main control

■ Soft-Dry Operation

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control.

■ Cooling Mode Operation

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following.

Intake Air Temperature

SET TEMPERATURE +0.5°C (Thermo. ON)

SET TEMPERATURE -0.5°C (Thermo. OFF)

INDOOR FAN Low Low

COMPRESSOR ON OFF ON OFF ON

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)

Remo. Mode ST+0.5 ST-0.5

Selecting Selecting Selecting

fan speed fan speed fan speed

To be selected higher temperature To be selected higher temperature

contrast Indoor Unit and Remo. contrast Indoor Unit and Remo.

More than More than

3 minutes 3 minutes

Thermal ON Thermal OFF

- 92 -

LGE Internal Use Only

Operation Details

■ Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Indoor unit Heat-Exchanger temperature

Intake Air Temperature

Setting Temperature

(Thermal OFF)

Setting Temperature

(Thermal ON)

Thermal

Outdoor fan

Indoor fan

4way valve

40°C

T

ST

T

LT

T

Off

T

On

+3°C

1min

ON ON

Setting

fan

spped

Setting

spped

ON

fan

3min

Minimum

3min

OFF OFF

LowLowLowLow

A

Low fan during 10sec

B

1min

ON ON

C

OffOffOff

Low

Setting

fan

spped

• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates at low speed, when it becomes lower than 40°C fan stops.

- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.

- To be operated "Low" except initial Hotstart operation

A

B

C

High Static Low Static Convertible

Chassis

Hotstart On T

Hotstart Off T

Low temperature T

On

Off

LT

Setting Temperature T

ST

BH BG BR

B1 B2 CE CF VE VJ

19°C19°C19°C19°C19°C19°C19°C26°C26°C

22°C22°C22°C22°C22°C22°C22°C27°C27°C

25°C25°C25°C25°C25°C25°C25°C28°C28°C

27°C27°C27°C27°C27°C27°C27°C30°C30°C

- 93 -

LGE Internal Use Only

Operation Details

■ Hot-Start Control

• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30°C.

• The operation diagram is as following.

Indoor unit

Heat-Exchanger

temperature

Hotstart Off

Hotstart On

1 min

Thermal Outdoor fan

Indoor fan

Off Off LowLow

4way Valve

• Initial Hotstart On state

➀ Power Off ➠ On ➁ Operation Off ➠ On ➂ Cooling operation ➠ Heating operation ➃ Defrost operation

ON ON

Setting fan

speed

ON

Setting fan

speed

- 94 -

LGE Internal Use Only

3. Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: CE

Floor Standing

ARNU07GCEA2

ARNU09GCEA2

ARNU12GCEA2

ARNU15GCEA2

ARNU07GCEU2

ARNU09GCEU2

ARNU12GCEU2

ARNU15GCEU2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

1067

148.3

49

70

635

203

978

794

639

13

20.4

62.8

190

161

14

WModel

ARNU07GCEA2

ARNU09GCEA2

ARNU12GCEA2

ARNU15GCEA2

HD

1067 635 203

ARNU07GCEU2

ARNU09GCEU2

ARNU12GCEU2

ARNU15GCEU2

978 639 190

(unit : mm)

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

1

2

Dimensions

- 95 -

LGE Internal Use Only

Dimensions

76, Seongsan-dong, Changwon City, Gyeongnam,

641-713, Korea

www.lgeaircon.com

CHASSIS CODE: CF

Floor Standing

ARNU18GCFA2

ARNU24GCFA2

ARNU18GCFU2

ARNU24GCFU2

Note

1. Unit should be installed in compliance with the installation manual

in the product box.

2. Unit shall be grounded in accordance with the local regulations or

applicable national codes.

203

1345

635

70

148.3

1048.4

49.4

148.3

190

161 14

1256

1098

1072

109.8

30

81.4

145

70

21.4 639

WModel

ARNU18GCFA2

ARNU24GCFA2

HD

1345 635 203

ARNU18GCFU2

ARNU24GCFU2

1256 639 190

(unit : mm)

203

Name

1

Air discharge grill

2

Air suction grill

Number Descripition

(unit : mm)

1

2

- 96 -

LGE Internal Use Only

Part 3

Trouble shooting guide

- 97 -

LGE Internal Use Only

Trouble shooting guide

Self-diagnosis function

.....................................................................99

- 98 -

LGE Internal Use Only

Self-diagnosis function

Self-Diagnosis Function

Error Indicator

• This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.

• Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of

outdoor unit control board as shown in the table.

• If more than two troubles occur simultaneously, lower number of error code is first displayed.

• After error occurrence, if error is released, error LED is also released simultaneously.

Error Display

1st,2nd LED of 7-segment indicates error number, 3rd LED indicates unit number. Ex) 211 : No.21 error of master unit

213 : No.21 error of slave2 011 → 051 : No.105 error of master unit

Display Title Cause of Error

01-

02-

03-

04-

05-

06-

07-

09-

Indoor unit related error

10-

11-

Air temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit Transmission error : wired remote controller

↔ indoor unit Drain pump Transmission error : outdoor unit ↔ indoor

unit Outlet pipe temperature sensor of indoor unit Different operation mode Serial No.

Poor fan motor operation

Transmission error: indoor unit → main PCB of outdoor.

Air temperature sensor of indoor unit is open or short Inlet pipe temperature sensor of indoor unit is open or short Failing to receive wired remote controller signal in indoor unit PCB

Malfunction of drain pump Failing to receive outdoor unit signal in indoor unit PCB

Outlet pipe temperature sensor of indoor unit is open or short Operation mode between indoor unit and outdoor unit is different In case when the serial number marked on

EEPROM of Indoor unit is 0 or FFFFFF Disconnecting the fan motor connector/Failure of indoor fan motor

lock When the addressing signal doesn't respond for 3mins. suddenly,

while the indoor unit gets the calling signal from the outdoor unit,

- 99 -

LGE Internal Use Only

Self-diagnosis function

Is sensor properly

connected to PCB?

Is the resistance value

of sensor normal?*

Connect properly to PCB

Change the sensor

Change the PCB

Yes

No

CN-ROOM : Indoor air temp sensor

CN-PIPE2 : Pipe outlet temp sensor

CN-PIPE1 : Pipe inlet temp sensor

Measure the resistance of outlet pipe temp sensor.

Error

No.

01 Indoor unit air sensor error

02 Indoor unit pipe inlet sensor error

06 Indoor unit pipe outlet sensor error

■ Error diagnosis and countermeasure flow chart

** In case the value is more than 100kΩ (open) or less than 100Ω (short), Error occurs

Refer: Resistance value maybe change according to temperature of temp sensor,

Error Type Error Point Main Reasons

1. Indoor unit PCB wrong connection

Indoor unit sensor is

open/short

2. Indoor unit PCB failure

3. Sensor problem (main reason)

It shows according to criteria of current temperature(±5% margin) ➔ Normal Air temp sensor: 10°C = 20.7kΩ : 25°C= 10kΩ : 50°C= 3.4kΩ

Pipe temp sensor: 10°C = 10kΩ : 25°C= 5kΩ : 50°C= 1.8kΩ

- 100 -

LGE Internal Use Only