service manual indoor units

8/10/2019 service manual indoor units

1/120

SystemIndoor UnitSERVICE MANUAL R410A

MODEL : ARNU Series URNU Series

CAUTION

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

Internal Use Only

http://biz.lgservice.com

R410A


2/120

- 2 -Copyright 2010 LG Electronics. Inc. All right reserved.Only for training and service purposes

LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

Part 1 General Information ....................................................................................................... 3

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

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

Nomenclature ...............................................................................................................................6

Part 2 Indoor Units ...................................................................................................................... 7Ceiling Mounted Cassette Type (1 way) ........................................................................................8

Ceiling Mounted Cassette Type (2 way) ......................................................................................16

Ceiling Mounted Cassette Type (4 way)(1)..................................................................................21Ceiling Mounted Cassette Type (4 way)(2)..................................................................................27

Art Cool Type(Mirror) ...................................................................................................................34

Art Cool Type(Gallery) .................................................................................................................45

Ceiling Concealed Duct Type (Low static) ...................................................................................55

Ceiling Concealed Duct Type (Built in) ........................................................................................61

Ceiling Concealed Duct Type (High static) ..................................................................................67

Wall Mounted Type ......................................................................................................................76

Ceiling & Floor Ceiling Suspended ..............................................................................................87

Floor Standing Type.....................................................................................................................94

Vertical Air Handling Unit ...........................................................................................................101

Part 3 Trouble shooting guide...............................................................................109


3/120



Part 1General Information

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

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

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


4/120

Model Names



1. Model Names

*ART COOL- SE/S8( * R:Mirror, V:Silver, B : Blue), SF(* E:Red, V:Silver, G:Gold , 1: Kiss (Photo changeable))*Wall Mounted- A: Basic, L:Plasma, *Ceiling Cassette- A: Basic, C:Plasma

CategoryChassisName

Capacity(Btu/h(kW))7.5

(2.2)

9.6

(2.8)

12.3

(3.6)

15.4

(4.5)

19.1

(5.6)

24.2

(7.1)

28.0

(8.2)

30.0

(8.8)

36.2

(10.6)

42.0

(12.3)

48.1

(14.1)

54.0

(15.8)

76.4

(22.4)

95.5

(28.0)

Wall Mounted(General)

SEARNU07

3SE*2

ARNU09

3SE*2

ARNU12

3SE*2

ARNU15

3SE*2S5

ARNU183S5*2

ARNU243S5*2

ART

COOLMirror

SEARNU073SE*2

ARNU093SE*2

ARNU123SE*2

ARNU153SE*2

S8ARNU18

3S8*2ARNU24

3S8*2

Ceiling

Cassette

1 Way TJARNU07

3TJ*2ARNU09

3TJ*2ARNU12

3TJ*2

2 Way TLARNU18

3TL*2ARNU24

3TL*2

4 Way

TRARNU073TR*2

ARNU093TR*2

ARNU123TR*2

TQARNU15

3TQ*2

ARNU18

3TQ*2TP

ARNU243TP*2

ARNU283TP*2

TNARNU363TN*2

TMARNU423TM*2

ARNU483TM*2

Ceiling

ConcealedDuct

High Static

BHARNU073BHA2

ARNU093BHA2

ARNU123BHA2

ARNU153BHA2

ARNU183BHA2

ARNU243BHA2

BGARNU283BGA2

ARNU363BGA2

ARNU423BGA2

BRARNU483

BRA2

B8URNU76

3B8A2

URNU96

3B8A2

Low Static

B1ARNU073B1G2

ARNU093B1G2

ARNU123B1G2

ARNU153B1G2

B2ARNU183B2G2

ARNU243B2G2

Built In

B3ARNU073B3G2

ARNU093B3G2

ARNU123B3G2

ARNU153B3G2

B4ARNU183B4G2

ARNU243B4G2

Ceiling & Floor VEARNU093VEA2

ARNU123VEA2

Ceiling Suspended VJARNU183VJA2

Floor

Standing

With Case

CEARNU073CEA2

ARNU093CEA2

ARNU123CEA2

ARNU153CEA2

CFARNU183CFA2

ARNU243CFA2

Without

Case

CEARNU073CEU2

ARNU093CEU2

ARNU123CEU2

ARNU153CEU2

CFARNU183CFU2

ARNU243CFU2

Vertical AHU

NJARNU183NJA2

ARNU243NJA2

ARNU303NJA2

ARNU363NJA2

NKARNU423NKA2

ARNU483NKA2

ARNU543NKA2


5/120

External Appearance



2. External Appearance

Wall Mounted

ART COOL Mirror

Ceiling Cassette- 1Way

Ceiling Cassette- 4Way

Ceiling & Floor

Ceiling Suspended

ARNU073TJ*2ARNU093TJ*2

ARNU123TJ*2

Ceiling Cassette -2WayARNU183TL*2

ARNU243TL*2

ARNU073TR*2

ARNU093TR*2

ARNU123TR*2

ARNU153TQ*2

ARNU183TQ*2

ARNU243TP*2

ARNU283TP*2

ARNU363TN*2

ARNU423TM*2

ARNU483TM*2

Ceiling Concealed Duct - Low StaticARNU073B1G2

ARNU093B1G2

ARNU123B1G2

ARNU153B1G2

ARNU183B2G2

ARNU243B2G2

ARNU073SE*2

ARNU093SE*2

ARNU123SE*2

ARNU153SE*2

ARNU183S5*2

ARNU243S5*2

ARNU073SE*2

ARNU093SE*2

ARNU123SE*2

ARNU153SE*2

ARNU183S8*2

ARNU243S8*2

ARNU093VEA2

ARNU123VEA2

ARNU183VJA2

ARNU243VJA2

Floor StandingWith caseARNU073CEA2

ARNU093CEA2

ARNU123CEA2

ARNU153CEA2

ARNU183CFA2

ARNU243CFA2

Without caseARNU073CEU2

ARNU093CEU2

ARNU123CEU2

ARNU153CEU2

ARNU183CFU2

ARNU243CFU2

Vertical AHUARNU183NJA2

ARNU243NJA2

ARNU303NJA2

ARNU363NJA2

ARNU423NKA2

ARNU483NKA2

ARNU543NKA2

Ceiling Concealed Duct - High StaticARNU073BHA2

ARNU093BHA2

ARNU123BHA2

ARNU153BHA2

ARNU183BHA2

ARNU243BHA2

ARNU283BGA2

ARNU363BGA2

ARNU423BGA2

ARNU483BRA2

URNU763B8A2

URNU963B8A2

Ceiling Concealed Duct Built-inARNU073B3G2

ARNU093B3G2

ARNU123B3G2

ARNU153B3G2

ARNU183B4G2

ARNU243B4G2

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

* A:Basic, C:Plasma

* A:Basic, C:Plasma

* R:Mirror

V:Silver

B : Blue


6/120

Nomenclature



3. Nomenclature

ARN U 307 ATJ 2

Generation

Chassis Name

Electrical Ratings

1:1, 115V, 60Hz 2: 1, 220V, 60Hz6:1, 220 - 240V, 50Hz 7: 1, 100V, 50/60Hz3:1, 208/230V, 60Hz

Total Cooling Capacity in Btu/h Class

EX) 18,000 Btu/h Class '18'

Combination of Inverter Type andCooling Only or Heat Pump

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

System withIndoor Unit using R410A

LGETA:U Ex) URN

Combinations of functionsA: Basic function

L: Neo Plasma(Wall Mounted)C:Plasma(Ceiling Cassette)G: Low StaticU: Floor Standing without CaseART COOL Type Panel ColorB:Blue R:Mirror V: Silver


7/120



Part 2Indoor Units

Ceiling Cassette

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

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

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

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

Art Cool Series

ART COOL Miror..............................................................34

ART COOL Gallery ..........................................................45

Ceiling Concealed Duct

Low Static ........................................................................55

Built In..............................................................................62

High Static........................................................................67Wall Mounted(General)

Wall Mounted ...................................................................76

Ceiling & Floor

Ceiling & Floor

Ceiling Suspended...........................................................87

Floor Standing

Floor Standing..................................................................94

Vertical Air Handling Unit................................................117


8/120



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

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

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

Ceiling Mounted Cassette Type (1Way)


9/120



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

Deice (defrost) control (Heating)

Auto Restart

Hot-start Control (Heating) The indoor fan does not rotate until the evaporator pip-

ing temperature will be reached at 25C(76F).

Compact and light design To install a unit is very convenient because of smallersize than textile.

Low noise The most advanced low-noise design. The adoption of turbo fan and round type heat exchang-

er give the quietest operation.

Long life filter Long life wrinkle(type) and washable and anti-bacteria

filter is adopted.

High head Drain pump Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm(27-9/16inch) is

possible.

High-Ceiling corresponding Function According to the height of ceiling, the RPM of indoor fanmotor is selected to increase air reaching distance.

Central Control(Optional) It is operating individually or totally by central control function.

Room temperature sensor. (Thermistor)

Maintains the room temperature in accordance with the Setting Temperature.

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.

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

Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends.


10/120



2. Operation Detail

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

(1) The function of main control

Operation Detail

Thermal ON Thermal OFF

Indoor Unit mode ST+0.5 ST-0.5

2TH (Remo.+Indoor)To be selected higher temperature To be selected higher temperature

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

Remo. Mode ST+0.5 ST-0.5

Intake Air Temperature

Thermo. ON

(SET TEMPERATURE

+0.5C(33F))

Thermo. OFF

(SET TEMPERATURE More than More than-0.5C(33F))

3 minutes 3 minutes

Selected Selected SelectedSpeed Speed Speed

INDOOR FAN Low Low


11/120



Heating Mode Operation

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

Hot-start Control

The indoor fan does no rotate until the evaporator piping temperature will be reached to 25C(76F).

The operation diagram is as following.

35C(94F)

30C(86

F)

27C(80F)

25C(76F)

22C(72F)

Pipe

temperature

OFFIndoor fan

speed

LO

LOW

LOW SELECTED

FAN LOW LOLOW

COMP ON

Operation Detail

Thermal OFF ON

OFF ON

ON

ONOutdoor fan

Indoor fan

4 Way ON

Room

Temperature

Thermal Off

Thermal On

Indoor pipeTemperature

33C(92F)

25C(76F)20C(68F)

36C(96F)

Minimum

3min

Settingfan

speed

Settingfan

speed

Settingfan

speed

Stop Low Stop StopLow LowLow Low


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


12/120



3. Dimensions

Dimensions

76,

Seongsan-dong,

Changw

onCity,

Gyeongnam,

641-713,

Korea

CHASSISCODE:TU

CeilingCassette1-wa

y

ARNU07GTU*2

ARNU09GTU*2

ARNU12GTU*2

Name

1

Liquidpipeconnection

Unitsize(7k,

9k

,12k):6.3

5

2

Gaspipeconnection

Unitsize(7k,

9k

,12k):12.7

3

Airsuctiongrill

4

Airdischargegrill

Number

Descripition

Note

1.

Unitshouldbeinstalledincompliancewiththeinstallationmanual

intheprod

uctbox.

2.

Unitshallbegroundedinaccordancewiththelocalregulat

ionsor

applicable

nationalcodes.

(unit:

mm)

1,100

500 34

88

1(AiroutletHole)

168.3

106.8

206.6

275.8 96.5

57.4

453

27

320.5

10

12

88

861

(PanelName:

PT-U

UC)


13/120

Dimensions



76,

Seongsan-dong,

ChangwonCity,

Gyeongnam,

641-713,

Korea

CHAS

SISCODE:TU

CeilingCassett

e1-way

ARNU07GTU*2

ARNU09GTU*2

ARNU12GTU*2

Name

1


Un

itsize(7k,

9k,

12k):6.3

5

2

Gaspipeconnection

Un

itsize(7k,

9k,

12k):12.7

3

Airsuctiongrill

4

Airdischargegrill

Number

Descripition

Note

1.

Un

itshouldbeinstalledincompliancewiththeinstallationmanual

in

theproductbox.

2.

Un

itshallbegroundedinaccordancewiththelo

calregulationsor

ap

plicablenationalcodes.

(unit:

mm)

(PanelName:

PT-U

UD)

453

46.5

57.4

34

117

96.5

168.3

106.8

206.3

275.8

109.5

861

101

2

88

1100

1

09.5

453

320.5

27

500

354.3


14/120



Dimensions

76,

Seongsan-dong,

ChangwonCity,

Gyeongnam,

641-713,

Korea

CHASS

ISCODE:TT

CeilingCassette

1-way

ARNU18GTT

*2

ARNU24GTT

*2

Name

1


Unitsize(18k):6.3

5,

(24k):9.5

2

2

Gaspipeconnection

Unitsize(18k):12.7,

(24k):15.8

8

3

Airsuctiongrill

4

Airdischargegrill

Nu

mber

Descripition

No

te

1.


intheproductbox.

2.

Unitshallbegroundedinaccordancewiththeloc

alregulationsor

app

licablenationalcodes.

(unit:

mm)

20.665.3

180.6

247.5

453.8

57.4

9196.1

173.8

31.7

453.8

1,4

20

500 34

1,2

01(AirOu

tletHole)

65.1

1332

1176.4

(PanelName:

PT-U

TC)


15/120

Dimensions



76,

Seongsan-dong

,ChangwonCity,

Gyeongnam,

641-713,

Korea

CHAS

SISCODE:TT

CeilingCassette1-way

ARNU18GT

T*2

ARNU24GT

T*2

Name

1


Unit

size(18k):6.3

5,

(24k):9.5

2

2

Gaspipeconnection

Units

ize(18k):12.7,

(24k):15.8

8

3

Airsuctiongrill

4

Airdischargegrill

N

umber

Descripition

N

ote

1.


in

theproductbox.

2.

Unitshallbegroundedinaccordancewiththelo

calregulationsor

ap


(unit:

mm)

(PanelName:

PT-U

TD)

109

.5

44

132

15.2

14

57

34

500

46.5

20.6

65.3180.6

247.5

453.8

31.7

57.4

173.8

97.1

91

109

.5

1420

453

.8

335

96

.5

22.3

65

.1

1176

.4

1332


16/120



1. Functions ....................................................................................17


3. Dimensions .................................................................................20

Ceiling Mounted Cassette Type (2Way)


17/120



1. Functions

Indoor Unit









Auto Restart







filter is adopted.

High head Drain pump Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm

(27-9/16inch) is possible.


Central Control(Optional) It is operating individually or totally by central control function.









Functions


18/120



2. Operation Detail

Auto Swing Control


Soft-Dry Operation







Operation Detail







Thermo. ON

(SET TEMPERATURE

+0.5C(33F))

Thermo. OFF


3 minutes 3 minutes

Selected Selected Selected

Speed Speed SpeedINDOOR FAN Low Low


19/120





Hot-start Control



35C(94F)

30C(86F)27C(80F)

25C(76F)

22C(72F)

Pipe

temperature

OFFIndoor fan

speed

LO

LOW

LOW SELECTED

FAN LOW LOLOW

COMP ON

Operation Detail

Thermal OFF ON

OFF ON

ON

ONOutdoor fan

Indoor fan

4 Way ON

Room

Temperature

Thermal Off

Thermal On


33C(92F)

25C(76F)20C(68F)

36C(96F)

Minimum

3min

Settingfan

speed

Settingfan

speed

Settingfan

speed




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


20/120



3. Dimensions

Dimensions

830(32-11/16)

A

B

47.9

(1-7/8)

275(10-13/16)

550(21-11/16)

69.5(2-3/4)

889.2

(35)

1050(41-5/16)

640(25-3/16)

28.5

(1-1/8)

4

2

1

3

TL

AB

225(8-7/8)

126.

5(5)

76,Seongsan-dong,ChangwonCity,Gyeongnam,

641-713,Korea

www.lgeaircon.com

CHASSISCODE:TL


ARNU183TL*2

ARNU243TL*2

Name

1


(18k)6.3

5(1/4),(24k)9.5

2(3/8)

2

Gaspipeconnection

(18k)12.

7(1/2),(

24k)15.

88(5/8)

3

Airsuctiongrill

4

Airdischargegrill

Number

Descr

ipition

Note

1.Unitshouldbeinstalledincompliancewiththeinstallation

manual

intheproductbox.

2.Unitshall

begroundedinaccordancewiththelocalregula

tionsor

applicable

nationalcodes.

[Unit:mm(inch)]

LGE

lectronicsUSA,HVAC

Division

1000SylvanAvenue,EnglewoodCliffs,NJ07632

www.lgusa.com/www.lghvac.com


21/120



1. Functions ....................................................................................22


3. Dimensions .................................................................................25

Ceiling Mounted Cassette Type (4Way) (1)


22/120



1. Functions

Indoor Unit









Auto Restart







filter is adopted.




Central Control(Optional)

Swirl Swing Control

It is operating individually or totally by central control function.

It is operating swirl swing









Functions


23/120



2. Operation Detail

Auto Swing Control


Soft-Dry Operation






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


Operation Detail

Vane 2

Vane 1 Vane 3

Vane 4







Thermo. ON

(SET TEMPERATURE

+0.5C(33F))

Thermo. OFF


3 minutes 3 minutes




24/120





Hot-start Control



35C(94F)

30C(86F)27C(80F)

25C(76F)

22C(72F)

Pipe

temperature

OFFIndoor fan

speed

LO

LOW

LOW SELECTED

FAN LOW LOLOW

COMP ON

Operation Detail

Thermal OFF ON

OFF ON

ON

ONOutdoor fan

Indoor fan

4 Way ON

Room

Temperature

Thermal Off

Thermal On


33C(92F)

25C(76F)20C(68F)

36C(96F)

Minimum

3min

Settingfan

speed

Settingfan

speed

Settingfan

speed







25/120



3. Dimensions

Dimensions


641-713,Korea

CHASSISCODE:TR

CeilingCassette4-wa

y

ARNU05GTR*2

ARNU07GTR*2

ARNU09GTR*2

ARNU12GTR*2

Name

1


Unitsize(5k,

7k,9

k,

12k):6.3

5

2

Gaspipeconnection

Unitsize(5k,

7k,9

k,

12k):12.7

3

Drainpipeconnection

VP25(32)

4

Powersupplyconnection

5

Airdischargegrill

6

Airsuctiongrill

Number

Descripition

Note

1.Unitshouldbeinstalledincompliancewiththeinstallation

manual

intheproductbox.

2.Unitshall

begroundedinaccordancewiththelocalregula

tionsor

applicable

nationalcodes.

(unit:mm)

570

570

517

69

128

517

B

A

BARROWV

IEW

AARROWV

IEW

461

523

214

53

84.559.5

79 48

142.5

3019

5701

65

63

34.5

2

3

1

4

BranchDuctConnection

R35

700

22.5

380(Airoutlethole)

473

700

376(InletGrille)

4R20

5 6

CEILINGO

PENING

500mmo

rmore*

500mmo

rmore*

REQUIRED

SPACE

500mmo

rmore*

500mmo

rmore*


26/120



Dimensions


641-713,Korea

CHASSISCODE:TQ

CeilingCassett

e4-way

ARNU15GTQ*2

ARNU18GTQ*2

Name

1


Unitsize(15k,

18k):6.3

5

2

Gaspipeconnection

Unitsize(15k,

18k):12.7

3

Drainpipeconnection

4


5

Airdischargegrill

6

Airsuctiongrill

Number

Descripition

Note

1.Unitshouldbeinstalledincompliancewiththeinstallationmanual

in

theproductbox.

2.Unitshallbegroundedinaccordancewiththelo

calregulationsor

ap


(unit:mm)

570

570

517

68

174

517

461

523

30

19142.5

165

63

95.5

79 48

12559.5

570

7694

256

2

4

3

1

BranchDuctConnection

R35

700

22.5

380(Airoutlethole)

473

700

376(InletGrille)

4R20

5 6

BARROWV

IEW

AARROWV

IEW

B

A

VP25(32)

CEILINGO

PENING

500mmo

rmore*

500mmo

rmore*

REQUIRED

SPACE

500mmo

rmore*

500mmo

rmore

*


27/120



1. Functions ....................................................................................28


3. Dimensions .................................................................................31

Ceiling Mounted Cassette Type (4Way) (2)


28/120



1. Functions

Indoor Unit









Auto Restart







filter is adopted.




Central Control(Optional)

Swirl Swing Control

It is operating individually or totally by central control function.

It is operating swirl swing









Functions


29/120



2. Operation Detail

Auto Swing Control


Soft-Dry Operation







Operation Detail







Thermo. ON

(SET TEMPERATURE

+0.5C(33F))

Thermo. OFF

(SET TEMPERATUREMore than More than

-0.5C(33F))3 minutes 3 minutes




30/120





Hot-start Control



35C(94F)

30C(86F)27C(80F)

25C(76F)

22C(72F)

Pipe

temperature

OFFIndoor fan

speed

LO

LOW

LOW SELECTED

FAN LOW LOLOW

COMP ON

Operation Detail

Thermal OFF ON

OFF ON

ON

ONOutdoor fan

Indoor fan

4 Way ON

Room

Temperature

Thermal Off

Thermal On


33C(92F)

25C(76F)20C(68F)

36C(96F)

Minimum

3min

Settingfan

speed

Settingfan

speed

Settingfan

speed







31/120



3. Dimensions

Dimensions

76,

Seongsan-dong,

Changw

onCity,

Gyeongnam,

641-713,

Korea

CHASSISCOD

E:TP


ARNU21GTP*2

ARNU24GTP*2

ARNU28GTP*2

Note

1.

Unitshould

beinstalledincompliancewiththeinstallationm

anual

intheprod

uctbox.

2.

Unitshallb

egroundedinaccordancewiththelocalregulationsor

applicable

nationalcodes.

684

840

671

787

787

840

Name

1


Unitsize(24k,28k):9.52

2

Gaspipeconnection

Unitsize(24k,28

k):15.88

3

Drainpipeconnection

4


5

Airdischargegrill

6

Airsuctiongrill

Number

Descripition

(unit:mm)

204

804

154

9982

60

840

60

350

165

80

53.5

108

204

40 65

4 3

1

2

BranchD

uctConnection

79 41.5

950 25

614(InletGrille)

500(AiroutletHole)

4-

R20

737950

5 6

475

420

420393

870-920(CEILINGO

PENINGS

PACE)

786(SUSPENSION

POSITION)

300

ORLESS

682(SUSPENSIONPOSITION)


870-920(CEILINGOPENINGSPACE)

Ceilingopening

B

A

OUTDOORAIRINTAKE

(DIRECT

CONNECTION)

BRANCH

DUCT

CONNECTION

BRANCH

DUCT

CONNECTION

13-3,3Hole

13-3,3Hole

70

71

350

165

79

505032

92

92

92

92

50

165

10

31

7126

62

35

BARROWV

IEW

AARROWV

IEW

VP25(3

2) 50

0mmormore*

500mmormore*

REQUIREDSPACE

500mmormore*

500mmormore*


32/120



Dimensions

840

246195

350

100 52

165

76,

Seongsan-dong

,ChangwonCity,

Gyeongnam,

641-713,

Korea

CHASSISCODE:TN


ARNU36GTN*2

N

ote

1.


in

theproductbox.

2.

Unitshallbegroundedinaccordancewiththelo

calregulationsor

ap


Name

1


Unitsize(36k):9.52

2

Gaspipeconnection

Unit

size(36k):15.88

3

Drainpipeconnection

4


5

Airdischargegrill

6

Airsuctiongrill

Nu

mber

Descripition

(unit:mm)

4 3

1

2

Branch

DuctConnection

107

78103

141

246

40

110

60

840

80

53.5

950

25614(InletGrille)

500(AiroutletHole)

4-R

20

737950

5 6

475

420

420393

870-920(CEILINGO

PENINGS

PACE)

786(SUSPENSION

POSITION)

300ORLESS




Ceilingopening

B

A

OUTDOORAIR

INTAKE

(DIRECTCO

NNECTION)

BRANCH

DUCT

CONNECTION

BRANCH

DUCT

CONNECTION

13-3,3Hole

13-3,3Hole

70

100

606043

92

92

92

92

350

165

165

10

7144

80

71

31

35

BARROWV

IEW

AARROWV

IEW

VP25(32)

500mmormore*

500mmormore*

REQUIREDSPACE

500mmormore*

500mmorm

ore*


33/120



Dimensions

76,

Seongsan-dong,ChangwonCity,

Gyeongnam,

641-713,

Korea

CHASS

ISCODE:TM

CeilingCassette

4-way

ARNU42GTM

*2

ARNU48GTM

*2

Note

1.

Unitshouldbeinstalledincompliancewiththeins

tallationmanual

inth

eproductbox.

2.

Unitshallbegroundedinaccordancewiththeloc

alregulationsor

app

licablenationalcodes.

Name

1


Unitsize

(42k,48k):9.52

2

Gaspipeconnection

Unitsize

(42k,48k):15.88

3

Drainpipeconnection

4


5

Airdischargegrill

6

Airsuctiongrill

Num

ber

D

escripition

(unit:mm)

4 3

1

2

840

288

237

Branch

DuctConnection

350

53.5

100 84

165

95025

614(InletGrille)

500(AiroutletHole)

4-

R20

737950

5 6

OUTDOORAIRIN

TAKE

(DIRECTCONNEC

TION)

13-3,3Hole

70

7175

110

71

31

35

BARROWV

IEW

BRANCH

DUCT

CONNECTION

BRANCH

DUCTCONNECTION

13-3,3Hole

60 6076

136

92

92

92

92

350

165

165

10

100

AARROWV

IEW

475

420

420393

870-920(CEILINGO

PENINGS

PACE)

786(SUSPENSION

POSITION)

300ORLESS




Ceilingopening

B

A

VP25(32)

500mmormore*

500mmormore*

REQUIREDSPACE

500mmormore*

500mmormore*


34/120



1. Functions ....................................................................................35


3. Dimensions .................................................................................43

Art Cool Type(Mirror)


35/120



Functions

1. Functions

Room temperature sensor. (THERMISTOR)

Maintains the room temperature in accordance with the Setting Temp.

Indoor fan is delayed for 5 sec at the starting.

High, Med, Low, CHAOS


The fan is switched to low(Cooling), med(Heating) speed. The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed.

The louver can be set at the desired position or swingup and down automatically.

Indoor Unit






Operation indication Lamps (LED)


Both the indoor and outdoor fan stops dur-

ing defrosting.

The indoor fan does not rotate until the

evaporator pipe temperature will be reached

at 28C(82F).

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic


Defrost(Deice) control (Heating)

Hot-start Control (Heating)

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.


36/120



Operation Details

2. Operation Details

DISPLAY1) 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 operateprocedures 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 0.5C(33F) below the setting temp, the compressor and the outdoor

fan stop.

When it reaches 0.5C(33F) above the setting temp, they start to operate again.

Compressor ON Temp=> Setting Temp+0.5C(33F)Compressor OFF Temp => Setting Temp-0.5C(33F)

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.

Healthy Dehumidification Mode

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

26C(78F) Intake Air Temp => 25C(76F)

24C(76F) Intake Air Temp < 26C(78F) => Intake Air Temp-1C(34F)

18C(64F) Intake Air Temp < 24C(76F) => Intake Air Temp-0.5C(33F)

Intake Air Temp < 18C(64F) => 18C(64F)

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 dehumidificationoperation and 4-min compressor off repeat

Compressor ON Temp. => Setting Temp+0.5C(33F)

Compressor OFF Temp. => Setting Temp-0.5C(33F)

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


Function of Controls


37/120



Operation Details

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. +2C(36F)

Themo OFF Temp. => Setting Temp.+4C(39F)

While in compressor on, when above 38C(100F), 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 33C (92F), when above

35C(94F) , 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 todefrost 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 0.5C(33F) or more below thesetting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, the compres-sor is turned on.

Compressor ON Temp => Setting Temp+0.5C(33F)

Compressor OFF Temp => Setting Temp+0.5C(33F)

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


24C(76F) Intake Air Temp < 26C(78F) => Intake Air Temp+1C(34F)

22C(72F) Intake Air Temp Intake Air Temp+0.5C(33F)

18C(64F) Intake Air Temp Intake Air Temp

Intake Air Temp 18C(64F) 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 temperatureautomatically according to the Fuzzy rule.

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

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 sincethe 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 onlythe indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air

temp at that moment as follows.24C(76F) Inatake Air Temp => Fuzzy Operation for Cooling

21C(70F) Inatake Air Temp Fuzzy Operation for Dehumidification

Inatake Air Temp Fuzzy Operation for Heating

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


38/120



Operation Details

1) Fuzzy Operation for Cooling

According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5C(33F) or morebelow the setting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, thecompressor is turned on.Compressor ON Temp. => Setting Temp+0.5C(33F)

Compressor OFF Temp. => Setting Temp+0.5C(33F)



24C(76F) Intake Air Temp < 26C(78F) => Intake Air Temp+1C(34F)



Intake Air Temp 18C(64F)

When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, theFuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically 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 0.5C(33F) or morebelow the setting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, thecompressor is turned on.Compressor ON Temp. => Setting Temp+0.5C(33F)

Compressor OFF Temp. => Setting Temp+0.5C(33F)



24C(76F) Intake Air Temp < 26C(78F)=> Intake Air Temp+1C(34F)





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


39/120



Operation Details

3) Fuzzy Operation for Heating

According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3C(37F) or moreabove the setting temp, the compressor is turned off. When below the setting temp, the compressor isturned on.

Compressor ON Temp => Setting Temp + 2C(36F)Compressor OFF Temp => Setting Temp + 4C(39F)

At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according tothe intake air temp at that time.20C(68F) Intake Air Temp => Intake Air Temp + 0.5C(33F)Intake Air Temp < 20C(68F) => 20C(68F)


While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according tothe 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 speedselection 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.


40/120



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 operationis carried out according to the set time.

Sleep Timer Operation

When the sleep time is reached after is input by the remote controller while inappliance 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 temperatureincreases by 1C(34F) After another 30 min elapse, it increases by 1C(34) again.

When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set tothe low.

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

Chaos Swing Mode

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

Chaos Natural Wind Mode

When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-

flow 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, 18C(64F). 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 operation, the room temperature is controlled to the setting temperature, 18C(64F).

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


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


41/120



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 onthe 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 22C(72F) and the highspeed 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 selectionswitch is on the main unit of the appliance to operate the appliance in the standard conditions.



In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operationcondition is set according to the intake air temperature as follows.

24C(76F) Intake Air Temp => Cooling Mode Operation, 22C(72F), High Speed

21C(70F) Intake Air Temp < 24C(76F) => Dehumidification Operation, 23C(74F), High Speed

Intake Air Temp < 21C(70F) => Heating Mode Operation, 24C(76F), High Speed

Test Operation Control

To check the condition of the installation when installing the appliance, the appliance is operated at coolingmode, 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, JetCool) is input by the remote controller, the test operation is canceled and the appliance is operated accordingto the setting by the remote controller.

Protection of the evaporator pipe from frosting

In the temperrature of the indoor pipe is below 0C(32F) after 7 minutes from starting the compressor, thecompressor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the tem-perature of the indoor pipe is over 7C(45F), the compressor and the outdoor fan are reoperated.

Outdoor fan motor stops when indoor pipe temperature is blow 3C(37F) and restarts at the pipe temperature

above 6C(43F) or after 90 seconds, if the pipe temperature does not rise to 6C(43F), outdoor fan motorruns continuously at even below 3C(37F).


42/120



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


43/120



Dimensions

3. Dimensions

76,Seongsan-dong,Chang

wonCity,Gyeongnam,

641-713,Korea

www.lgeaircon.com

CHASSISCODE:

SE

ARTCOOLMirror

ARNU073SE*2

ARNU093SE*2

ARNU123SE*2

ARNU153SE*2

W

Mo

del

ARNU073SE*2

ARNU093SE*2

ARNU123SE*2

ARNU153SE*2

H

D

915(36)

282

(11-1/8)

169

(5-5/8)

Note

1.Unitshou

ldbeinstalledincompliancewiththeinstallationmanual

inthepro

ductbox.

2.Unitshallbegroundedinaccordancewiththelocalregulationsor

applicablenationalcodes.

[Un

it:mm(inch)]

[Unit:mm(inch)]

915(36)

282(11-1/8)

282(11-1/8)

169(5-5/8)

567(22-3/8)

51(2-1/16)

53(2-1/16)

165(6-1/2)

H

W

D

LGElectronicsUSA,HVACDivision

1000SylvanAvenue,EnglewoodCliffs,NJ0

7632

www.lgusa.com/www.lghvac.com

1

2

Name

1

Airdischargegrill

2

Airsuctiongrill

Number

Descr

ipition

265(10-1/2)


44/120



Dimensions

Display&signalreceiver

PartName

Frontpanel

Airsuctiongrille

Installationplate

Knockouthole

5

No. 2 431

Remark

Note

1.Unit

shouldbeinstalledincompliancewiththeinsta

llationmanual

intheproductbox.

2.Unit

shallbegroundedinaccordancewiththelocal

regulationsor

applicablenationalcodes.

3 1

2

4

299

48

93

281

122

200

1107

804

10

63

53

58

72


641-713,Korea

CHASSIS

CODE:S8

ARTCOOLMir

ror

ARNU18GS8*2

ARNU24GS8*2

(unit:mm)


45/120



1. Functions ....................................................................................46


3. Dimensions .................................................................................54

ArtCoolGallery


46/120



Functions

1. Functions

Room temperature sensor. (THERMISTOR)

Maintains the room temperature in accordance with the Setting Temp.

Indoor fan is delayed for 5 sec at the starting.

High, Med, Low, CHAOS


The fan is switched to low(Cooling), med(Heating) speed. The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed.

The louver can be set at the desired position or swingup and down automatically.

Indoor Unit






Operation indication Lamps (LED)


Both the indoor and outdoor fan stops dur-

ing defrosting.

The indoor fan does not rotate until the

evaporator pipe temperature will be reached

at 28C(82F).

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic


Defrost(Deice) control (Heating)

Hot-start Control (Heating)

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.


47/120



Operation Details

2. Operation Details

DISPLAY1) 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 operateprocedures 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 0.5C(33F) below the setting temp, the compressor and the outdoor

fan stop.

When it reaches 0.5C(33F) above the setting temp, they start to operate again.

Compressor ON Temp=> Setting Temp+0.5C(33F)Compressor OFF Temp => Setting Temp-0.5C(33F)

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.

Function of Controls


48/120



Operation Details

Healthy Dehumidification Mode

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

26C(78F) Intake Air Temp => 25C

24C(76F) Intake Air Temp < 26C(78F) => Intake Air Temp-1C

18C(64F) Intake Air Temp < 24C(76F) => Intake Air Temp-0.5C(33F)


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 dehumidificationoperation and 4-min compressor off repeat

Compressor ON Temp. => Setting Temp+0.5C(33F)

Compressor OFF Temp. => Setting Temp-0.5C(33F)

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


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. +2C(36F)

Themo OFF Temp. => Setting Temp.+4C(39F)

While in compressor on, when above 38C(100F), 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 33C(92F) , when above35C(94F) , 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 todefrost 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 0.5C(33F) or more below thesetting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, the compres-sor is turned on.



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

intake air temp at that time.26C(78F) Intake Air Temp => 25C(76F)

24C(76F) Intake Air Temp Intake Air Temp+1C(34F)



Intake Air Temp 18C(64F)


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


49/120



Operation Details

ature

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 airtemp at that moment as follows.

24C(76F) Inatake Air Temp => Fuzzy Operation for Cooling

21C(70F) Inatake Air Temp Fuzzy Operation for Dehumidification

Inatake Air Temp Fuzzy Operation for Heating

If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10sec 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 0.5C(33F) or morebelow the setting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, thecompressor is turned on.








Intake Air Temp < 18C(64F) => 18C(64F) 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 temperatureautomatically 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 0.5C or more belowthe setting temp, the compressor is turned off. When 0.5C(33F) or more above the setting temp, the com-pressor is turned on.




50/120



Operation Details

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





Intake Air Temp < 18C (64F) => 18C(64F)


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

3) Fuzzy Operation for Heating

According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3C(37F) or moreabove the setting temp, the compressor is turned off. When below the setting temp, the compressor isturned on.

Compressor ON Temp => Setting Temp + 2C(36F)Compressor OFF Temp => Setting Temp + 4C(39F)

At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according tothe intake air temp at that time.20C(68F) Intake Air Temp => Intake Air Temp + 0.5C(33F)Intake Air Temp < 20C(68F) => 20C(68F)


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 speedselection 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.


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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 operationis carried out according to the set time.

Sleep Timer Operation

When the sleep time is reached after is input by the remote controller while inappliance 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 temperatureincreases by 1C(34F) After another 30 min elapse, it increases by 1C(34F) again.

When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set tothe low.

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

Chaos Swing Mode

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

Chaos Natural Wind Mode

When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-

flow 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 operation, the room temperature is controlled to the setting temperature, 18C(64F) 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


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 operation, the room temperature is controlled to the setting temperature, 18C(64F)

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


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


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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 onthe main unit of the appliance to operate the appliance in the standard conditions.



The forced operation is carried out in cooling mode with the setting temperature 22C(72F) and the highspeed 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 selectionswitch is on the main unit of the appliance to operate the appliance in the standard conditions.



In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operationcondition is set according to the intake air temperature as follows.

24C(76F) Intake Air Temp => Cooling Mode Operation, 22C(72F), High Speed

21C(70F) Intake Air Temp < 24C(76F) => Dehumidification Operation, 23C(74F), High Speed

Intake Air Temp < 21C(70F) => Heating Mode Operation, 24C(76F), High Speed

Test Operation Control

To check the condition of the installation when installing the appliance, the appliance is operated at coolingmode, 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, JetCool) is input by the remote controller, the test operation is canceled and the appliance is operated accordingto the setting by the remote controller.

Protection of the evaporator pipe from frosting

In the temperrature of the indoor pipe is below 0C(32F) after 7 minutes from starting the compressor, thecompressor and outdoor fan are stopped, and 3 minutes delay of ope

Date post:	02-Jun-2018
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