Haier R410A User Manual

Page 1
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.
http://biz.lgservice.com
R410A
Page 2
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 3
Part 1
General Information
1. Model Names .............................................4
2. External Appearance .................................5
3. Nomenclature .............................................6
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 3 -
LGE Internal Use Only
Page 4
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
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 4 -
LGE Internal Use Only
Page 5
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 5 -
LGE Internal Use Only
Page 6
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 6 -
LGE Internal Use Only
Page 7
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 & Floor
Ceiling Suspended...........................................................83
Floor Standing
Floor Standing..................................................................90
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 7 -
LGE Internal Use Only
Page 8
Ceiling Mounted Cassette Type (1Way)
1. Functions ......................................................................................9
2. Operation Details........................................................................10
3. Dimensions .................................................................................12
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 8 -
LGE Internal Use Only
Page 9
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
• 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
Page 10
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 10 -
LGE Internal Use Only
Page 11
25 °C
27 °C
35 °C 30 °C
22 °C
Pipe
temperature
OFF
Indoor fan
speed
LO
LOW
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
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 11 -
LGE Internal Use Only
Page 12
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 12 -
LGE Internal Use Only
Page 13
Ceiling Mounted Cassette Type (2Way)
1. Functions ....................................................................................14
2. Operation Details........................................................................15
3. Dimensions .................................................................................17
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 13 -
LGE Internal Use Only
Page 14
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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
Page 15
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 15 -
LGE Internal Use Only
Page 16
25 °C
27 °C
35 °C 30 °C
22 °C
Pipe
temperature
OFF
Indoor fan
speed
LO
LOW
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
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 16 -
LGE Internal Use Only
Page 17
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 17 -
LGE Internal Use Only
Page 18
Ceiling Mounted Cassette Type (4Way) (1)
1. Functions ....................................................................................19
2. Operation Details........................................................................20
3. Dimensions .................................................................................22
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 18 -
LGE Internal Use Only
Page 19
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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
Page 20
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 20 -
Vane 1 Vane 3
Vane 4
LGE Internal Use Only
Page 21
25 °C
27 °C
35 °C 30 °C
22 °C
Pipe
temperature
OFF
Indoor fan
speed
LO
LOW
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
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 21 -
LGE Internal Use Only
Page 22
Dimensions
269
670
30
570
269
90
90
120.4
30
521
670
570
450
40
110 110
670
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 22 -
LGE Internal Use Only
Page 23
Ceiling Mounted Cassette Type (4Way) (2)
1. Functions ....................................................................................24
2. Operation Details........................................................................25
3. Dimensions .................................................................................27
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 23 -
LGE Internal Use Only
Page 24
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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
Page 25
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 25 -
Vane 1 Vane 3
Vane 4
LGE Internal Use Only
Page 26
25 °C
27 °C
35 °C 30 °C
22 °C
Pipe
temperature
OFF
Indoor fan
speed
LO
LOW
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
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 26 -
LGE Internal Use Only
Page 27
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
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 27 -
LGE Internal Use Only
Page 28
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 28 -
LGE Internal Use Only
Page 29
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,
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 29 -
LGE Internal Use Only
Page 30
Art Cool Type(Mirror)
1. Functions ....................................................................................31
2. Operation Details........................................................................32
3. Dimensions .................................................................................39
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 30 -
LGE Internal Use Only
Page 31
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 31 -
The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.
LGE Internal Use Only
Page 32
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 32 -
LGE Internal Use Only
Page 33
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 33 -
LGE Internal Use Only
Page 34
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 34 -
LGE Internal Use Only
Page 35
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 35 -
LGE Internal Use Only
Page 36
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 36 -
LGE Internal Use Only
Page 37
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 37 -
LGE Internal Use Only
Page 38
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 38 -
LGE Internal Use Only
Page 39
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 39 -
LGE Internal Use Only
Page 40
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 40 -
LGE Internal Use Only
Page 41
ArtCoolGallery
1. Functions ....................................................................................42
2. Operation Details........................................................................43
3. Dimensions .................................................................................50
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 41 -
LGE Internal Use Only
Page 42
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 42 -
The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.
LGE Internal Use Only
Page 43
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 43 -
LGE Internal Use Only
Page 44
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 45
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 46
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 47
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 48
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 49
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 49 -
LGE Internal Use Only
Page 50
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
1
500
525
3. Dimensions
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 51
Ceiling Concealed Duct Type (Low static)
1. Funtions ......................................................................................52
2. Operation Details........................................................................53
3. Dimensions .................................................................................56
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 51 -
LGE Internal Use Only
Page 52
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
It is operating individually or totally by central control function.
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LGE Internal Use Only
Page 53
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 54
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
ON
ON
ON
Low
LowLowLowLow
OffOffOff
ON
OFF
OFF
Low fan during 10sec
A
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 55
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
1 min
Thermal Outdoor fan
Indoor fan
Off Off LowLow
4way Valve
Initial Hotstart On state
Power Off On Operation Off OnCooling operation Heating operationDefrost operation
ON ON
Setting fan
speed
ON
Setting fan
speed
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 55 -
LGE Internal Use Only
Page 56
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 57
Ceiling Concealed Duct Type (Built in)
1. Funtions ......................................................................................58
2. Operation Details........................................................................59
3. Dimensions .................................................................................62
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 57 -
LGE Internal Use Only
Page 58
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
It is operating individually or totally by central control function.
- 58 -
LGE Internal Use Only
Page 59
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 59 -
LGE Internal Use Only
Page 60
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 60 -
LGE Internal Use Only
Page 61
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
1 min
Thermal Outdoor fan
Indoor fan
Off Off LowLow
4way Valve
Initial Hotstart On state
Power Off On Operation Off OnCooling operation Heating operationDefrost operation
ON ON
Setting fan
speed
ON
Setting fan
speed
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 61 -
LGE Internal Use Only
Page 62
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 62 -
LGE Internal Use Only
Page 63
Ceiling Concealed Duct Type (High Static)
1. Funtions ......................................................................................64
2. Operation Details........................................................................65
3. Dimensions .................................................................................68
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 63 -
LGE Internal Use Only
Page 64
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
It is operating individually or totally by central control function.
- 64 -
LGE Internal Use Only
Page 65
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 65 -
LGE Internal Use Only
Page 66
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 66 -
LGE Internal Use Only
Page 67
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
1 min
Thermal Outdoor fan
Indoor fan
Off Off LowLow
4way Valve
Initial Hotstart On state
Power Off On Operation Off OnCooling operation Heating operationDefrost operation
ON ON
Setting fan
speed
ON
Setting fan
speed
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 67 -
LGE Internal Use Only
Page 68
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
87
882
750
5
21
47
75
158
212
243
64
450
260
- 68 -
882
LGE Internal Use Only
Page 69
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
243
232
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 69 -
LGE Internal Use Only
Page 70
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 71
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
1,220
- 71 -
1,562
460
329 320 329
293
688
5
318
LGE Internal Use Only
Page 72
Wall Mountedd Type
1. Functions ....................................................................................73
2. Operation Details........................................................................74
3. Dimensions .................................................................................81
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 72 -
LGE Internal Use Only
Page 73
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 73 -
The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28°C.
LGE Internal Use Only
Page 74
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 75
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 76
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 77
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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Page 78
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 79
- 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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 79 -
LGE Internal Use Only
Page 80
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.
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 80 -
LGE Internal Use Only
Page 81
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 81 -
LGE Internal Use Only
Page 82
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 82 -
LGE Internal Use Only
Page 83
Ceiling & Floor
Ceiling Suspended
1. Funtions ......................................................................................84
2. Operation Details........................................................................85
3. Dimensions .................................................................................88
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 83 -
LGE Internal Use Only
Page 84
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
It is operating individually or totally by central control function.
- 84 -
LGE Internal Use Only
Page 85
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 86
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 87
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
1 min
Thermal Outdoor fan
Indoor fan
Off Off LowLow
4way Valve
Initial Hotstart On state
Power Off On Operation Off OnCooling operation Heating operationDefrost operation
ON ON
Setting fan
speed
ON
Setting fan
speed
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 87 -
LGE Internal Use Only
Page 88
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
<Ceiling Installation> <Floor Installation>
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 88 -
LGE Internal Use Only
Page 89
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 89 -
LGE Internal Use Only
Page 90
Floor Standing Type
1. Function ......................................................................................91
2. Operation Details........................................................................92
3. Dimensions .................................................................................95
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 90 -
LGE Internal Use Only
Page 91
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)
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
It is operating individually or totally by central control function.
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LGE Internal Use Only
Page 92
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 93
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 93 -
LGE Internal Use Only
Page 94
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
1 min
Thermal Outdoor fan
Indoor fan
Off Off LowLow
4way Valve
Initial Hotstart On state
Power Off On Operation Off OnCooling operation Heating operationDefrost operation
ON ON
Setting fan
speed
ON
Setting fan
speed
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 94 -
LGE Internal Use Only
Page 95
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.
<With Case>
<Without Case>
1067
1067
148.3
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 95 -
LGE Internal Use Only
Page 96
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.
<With Case>
<Without Case>
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
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 96 -
LGE Internal Use Only
Page 97
Part 3
Trouble shooting guide
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
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LGE Internal Use Only
Page 98
Trouble shooting guide
Self-diagnosis function
.....................................................................99
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LGE Internal Use Only
Page 99
Self-diagnosis function
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,
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 99 -
LGE Internal Use Only
Page 100
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
Yes
No
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 100k(open) or less than 100(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= 3.4k
Pipe temp sensor: 10°C = 10k : 25°C= 5k: 50°C= 1.8k
Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 100 -
LGE Internal Use Only
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