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