Fujitsu AU*24LUAR, AU*54LUAS, AU*45LUAS, AO*24LMAKL, AO*30LMAWL Service Instruction

SPLIT TYPE
ROOM AIR CONDITIONER

CASSETTE

type

Models Indoor unit Outdoor unit

AU*24LUAR
AU*30LUAS
AU*36LUAS
AU*45LUAS
AU*54LUAS

AO*24LMAKL
AO*30LMAWL
AO*36LMAWL
AO*45LJBYL
AO*54LJBYL

INVERTER

SERVICE

INSTRUCTION

R410A

CONTENTS

1. SPECIFICATIONS

SPECIFICATIONS.......................................................................................................... 01-01

2. DIMENSIONS

DIMENSIONS.................................................................................................................. 02-01

3. REFRIGERANT SYSTEM DIAGRAM

REFRIGERANT CIRCUIT............................................................................................... 03-01

4. CIRCUIT DIAGRAM

CIRCUIT DIAGRAM........................................................................................................ 04-01

5. DESCRIPTION OF EACH CONTROL OPERATION

5-1-1 COOLING CAPACITY CONTROL......................................................................

5-1 COOLING OPERATION............................................................................................

5-4 AUTO CHANGEOVER OPERATION........................................................................

5-5 INDOOR FAN CONTROL.........................................................................................

5-6 OUTDOOR FAN CONTROL......................................................................................

5-7 LOUVER CONTROL.................................................................................................

05-01

05-01

5-2-1 HEATING CAPACITY CONTROL......................................................................

5-2 HEATING OPERATION.............................................................................................

05-02

05-02

5-3-1 INDOOR UNIT CONTROL.................................................................................

5-3 DRY OPERATION......................................................................................................

05-03

05-03

05-04

05-05

05-07

05-08

5-8 COMPRESSOR CONTROL......................................................................................

05-09

5-9 TIMER OPERATION CONTROL...............................................................................

05-11

5-10 ELECTRONIC EXPANSION VALVE CONTROL....................................................

05-13

5-11 TEST OPERATION CONTROL...............................................................................

05-13

5-12 PREVENT TO START FOR 3 MINUTES (3 MINUTES ST)....................................

05-13

5-13 4-WAY VALVE EXTENSION SELECT....................................................................

05-13

5-14 AUTO RESTART.....................................................................................................

05-13

5-15 PUMP DOWN (For AU*30/ 36/ 45/ 54LUAS)..........................................................

05-14

5-16 COMPRESSOR PREHEATING...............................................................................

05-14

5-17 DEFROST OPERATION CONTROL.......................................................................

05-15

5-19 ENERGY SAVE FUNCTION....................................................................................

05-18

5-20 VARIOUS PROTECTIONS......................................................................................

05-19

5-18 DRAIN PUMP OPERATION....................................................................................

05-18

6. REFRIGERANT CAUTION -R410A-

6-1 R410A TOOLS............................................................................................................ 06-01

6-2 PRECAUTION FOR INSTALLATION.........................................................................

06-02

6-3 PRECAUTION FOR SERVICING...............................................................................

06-04

6-4 NEW REFRIGERANT R410A.....................................................................................

06-05

6-5 DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS.......

06-08

8. APPENDING DATA

9. INSTALLATION MANUAL

8-1 CAPACITY TABLE..................................................................................................... 08-01

8-2 OPERATION RANGE.................................................................................................

08-06

8-3 ELECTRIC CHARACTERISTICS...............................................................................

08-07

8-4 SAFETY DEVICE........................................................................................................

08-09

8-5 FUNCTION SETTING.................................................................................................

08-11

7-1-2 OUTDOOR UNIT DISPLAY................................................................................

7-1-1 WIRED REMOTE CONTROLLER DISPLAY......................................................

7-1 ERROR DISPLAY......................................................................................................

7. TROUBLE SHOOTING

7-2 TROUBLE SHOOTING WITH ERROR CODE..........................................................

7-3 TROUBLE SHOOTING WITH NO ERROR CODE....................................................

7-4 SERVICE PARTS INFORMATION............................................................................

07-01

07-01

8-5-1 INDOOR UNIT....................................................................................................

08-11

8-5-2 OUTDOOR UNIT (AO*30/ 36LMAWL)................................................................

08-13

8-5-3 OUTDOOR UNIT (AO*45/ 54LJBYL)..................................................................

08-15

8-5-4 WIRED REMOTE CONTROLLER......................................................................

08-17

07-03

07-24

07-04

07-29

1-1-1 PARTS LAYOUT DRAWING...............................................................................

1-1-2 WIRING................................................................................................................

1-1-3 DISASSEMBLY PROCESS.................................................................................

1-1 For AOU18/ 24LMAKL............................................................................................

1 REPLACEMENT PARTS ( For OUTDOOR UNIT ).......................................................

10. REPLACEMENT PARTS

10-01

10-01
10-01

10-04

10-03

2-1 PARTS LAYOUT DRAWING...................................................................................

2 REPLACEMENT PARTS ( For INDOOR UNIT )........................................................... 10-36

10-36

1-2-1 PARTS LAYOUT DRAWING...............................................................................

1-2-2 WIRING................................................................................................................

1-2-3 DISASSEMBLY PROCESS.................................................................................

1-2-4 ASSEMBLY PROCESS of INVERTER UNIT......................................................

1-2 For AO*30/ 36LMAWL.............................................................................................

10-08
10-08

10-11

10-10

10-16

1-3-1 PARTS LAYOUT DRAWING...............................................................................

1-3-2 WIRING................................................................................................................

1-3-3 DISASSEMBLY PROCESS.................................................................................

1-3-4 ASSEMBLY PROCESS of INVERTER UNIT......................................................

1-3 For AO*45/ 54LJBYL..............................................................................................

10-21
10-21

10-25

10-23

10-31

1 . SPECIFICATIONS

R410A

CASSETTE type

INVERTER

COOLING

kW

BTU/h

kW

BTU/h

COOLING RATED / MAX

HEATING RATED / MAX

COOLING RATED / MAX

HEATING RATED / MAX

A

COOLING

HEATING

l/h(pints/h)

High

Med

Low

OUTDOOR High

High

Med

Low

Quiet

High

Low

INDOOR

OUTDOOR

INDOOR

OUTDOOR

High

Med

Low

W

Fin Pitch

Coil Dimensions

Fin Pitch

Coil Dimensions

INDOOR

OUTDOOR

INDOOR

OUTDOOR

INDOOR

OUTDOOR

LIQUID

GAS

m

m

CHARGE g

mm

Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)

INDOOR
FAN SPEED
COOL/HEAT

46/46

44/44

39/39

52/54

Turbo × 1

Propeller × 1

40

65

Aluminium

2 × 30

630 × 901 × 36.38

1300

Copper tube

Copper tube

AVAILABLE VOLTAGE RANGE 198-264V 50Hz

CEUROPEAN ENERGY LABEL

743 × 984 × 413

355 × 1060 × 1025

Inverter

White (5Y9/0.5NN)

Beige(10YR7.5/1.0NN)

2 × 10

210 × 970 × 26.6

1.45

Aluminium

1.30

34/44(75/97)

54/58(119/128)

1800

15.88(5/8inc)

25(chargeless: 10)

FLARE

9.52(3/8inc)

10.5/13.0

10

2.81

3.25

246 × 830 × 830

650 × 830 × 320

7.10/8.00

24200/27300

7.80/9.00

26600/30700

2.0(4.2)

2.53/2.98

2.40/2.98

11.1/13.0

REMOTE CONTROLLER Wired

ABS

DRAIN PIPE

MATERIAL

SIZE

Outer diameter 37.0/Inner diameter 32.0

DIMENSIONS
H × W × D

mm

MAX LENGTH

SIZE

mm

kg(lbs) WEIGHT

CONNECTION METHOD

NET

GROSS

POE

15

TYPE

R410ATYPE

MAX HEIGHT

REFRIGERANT OIL

REFRIGERANT

PIPE

NET / GROSS

kW INPUT POWER

COOLING

HEATING

CURRENT

dB(A)

STARTING CURRENT

MOISTURE REMOVAL

kW/kW

INVERTER HEAT PUMP TYPE

CASSETTE MODELS

TYPE

230V 50Hz

RATED / MAX

INDOOR

OUTDOOR

POWER SOURCE

MODEL NAME

CAPACITY

RATED / MAX

AU 24LUAR

AO 24LMAKL

A

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

INDOOR

AIR
CIRCULATION
COOL/HEAT

m

3

/h

EER

COP

FAN MOTOR OUTPUT W

INDOOR

1250/1250

1080/1080

920/920

3200/3200

Coil

OUTDOOR

r.p.m

400/400

-

540/490

480/430

390/340

OUTPUT

780/780

HEAT
EXCHANGER
TYPE

FAN TYPE x Q'ty

OUTDOOR

Coil

Fin

Fin

mm

COMPRESSOR

OUTDOOR

INDOOR

OUTDOOR

Hermetic type, 4 poles, DC motor, TWIN ROTARY

Rows x Stages

mm

Rows x Stages

TYPE

STARTING METHOD

INDOOR

CASING COLOR

01-01

1. SPECIFICATIONS

01-02

AU 30LUAS AU 36LUAS

AO 30LMAWL AO 36LMAWL

230V 50Hz 230V 50Hz

C E

kW 8.50/10.00 10.00/11.20

BTU/h 29000/34100 34100/38200

kW 10.00/11.20 11.20/12.77

BTU/h 34100/38200 38200/43600

COOLING RATED/MAX 2.86/3.46 4.01/4.08

HEATING RATED/MAX 2.84/3.37 3.49/4.15

COOLING RATED/MAX 12.5/15.2 17.6/17.9

HEATING RATED/MAX 12.4/14.8 15.2/18.2

A 15 15

COOLING 2.97 2.49

HEATING 3.52 3.21

l/h (pints/h) 3.0(6.3) 4.0(8.4)

High

Med

Low

OUTDOOR High

High

Med

Low

Quiet

OUTDOOR High

INDOOR

OUTDOOR

INDOOR

OUTDOOR

High

Med

Low

53.0/55.0 54.0/55.0

W

Fin Pitch

Coil Dimensions

Fin Pitch

Coil Dimensions

INDOOR

OUTDOOR

INDOOR

OUTDOOR

INDOOR

OUTDOOR

LIQUID

GAS

m

m

CHARGE g

COOLING

HEATING

mm

Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)

600/600

490/490

420/420

-/-

CASSETTE MODELS

INVERTER HEAT PUMP TYPE

INVERTER

Turbo × 1

Propeller × 1

100

103

DC TWIN ROTARY(INVERTER)

1300

850/900

Copper tube

Aluminium

2 × 12

252 × 970 × 26.6

1.30

Copper tube

Aluminium

798 × 900 × 36.38

2 × 38

1.30

White(5Y9/0.5NN)

Beige(10YR7.5/1.0NN)

296 × 830 × 830

830 × 900 × 330

455 × 1060 × 1025

970 × 1050 × 445

37/52(82/115)

FLARE

9.52(3/8 inc.)

15.88(5/8 inc.)

64/70(141/154)

50(chargeless:15)

WIRED

ABS

30

R410A

2200

POE

Outer diameter 37.0 / Inner diameter 32.0

1550/1550

1300/1300

1100/1100

3600/3800

48.0/48.0

44.0/44.0

41.0/41.0

-10 to 43

-10 to 24

FAN MOTOR OUTPUT W

OUTDOOR

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

Fin

Coil

INDOOR

HEAT
EXCHANGER
TYPE

OUTDOOR

TYPE

HEATING

CAPACITY

RATED/MAX

TYPE

MODEL NAME

OUTDOOR

POWER SOURCE

INDOOR

FAN TYPE x Q'ty

A

FAN SPEED
COOL/HEAT

INDOOR

MOISTURE REMOVAL

STARTING CURRENT

INDOOR

EER

COP

r.p.m

REMOTE CONTROLLER

DRAIN PIPE

MATERIAL

REFRIGERANT

SIZE

TYPE

OPERATION(OUTDOOR) °C

TYPE

INDOOR

MAX LENGTH

Rows × Stages

mm

Rows × Stages

mm

OUTPUT

NET

CASING COLOR

STARTING METHOD

COMPRESSOR

REFRIGERANT OIL

mm

kg(lbs)

DIMENSIONS
H × W × D

WEIGHT

NET /
GROSS

PIPE

MAX HEIGHT

mm

CONNECTION METHOD

SIZE

AVAILABLE VOLTAGE RANGE

GROSS

Coil

dB(A)

INDOOR

OUTDOOR

Fin

198-264V 50Hz

EUROPEAN ENERGY LABEL

m3/h

kW

AIR
CIRCULATION
COOL/HEAT

CURRENT

kW/kW

RATED/MAX

INPUT POWER

COOLING

01-03

CASSETTE TYPE

INVERTER HEAT PUMP TYPE

AU 45LUAS

AO 45LJBYL

230V 50Hz

198-264V 50Hz

kW 12.5 / 14.0

BTU/h 42700 / 47800

kW 14.0 / 16.0

BTU/h 48000 / 56300

COOLING RATED / MAX 4.45 / 5.15

HEATING RATED / MAX 3.95 / 4.60

COOLING RATED / MAX 19.5 / 22.6

HEATING RATED / MAX 17.3 / 20.0

A 15

COOLING 2.81

HEATING 3.54

l/h(pints/h) 4.5(9.5)

High 1700/1700

Med 1420/1420

Low 1200/1200

Quiet -

High 6600/6600

Low -

High 680/680

Med 580/580

Low 500/500

Quiet -

High

Upper fan : 850/850

Lower fan : 750/750

Low -

Turbo × 1

Propeller × 2

INDOOR 100

OUTDOOR 103 × 2

High 50 / 50

Med 48 / 48

Low 45 / 45

Quiet -

High 54 / 55.5

Low -

DC SCROLL(INVERTER)

W 2500

Inverter

Copper tube

Aluminium

3 × 12

Fin Pitch

1.4

Coil Dimensions

252 × 970 × 39.9

Copper tube

Aluminium

2 × 60

Fin Pitch

1.3

Coil Dimensions

1260 × 900 × 36.38

White(5Y9/0.5NN)

Beige(10YR7.5/1.0NN)

INDOOR 296 × 830 × 830

OUTDOOR 1290 × 900 × 330

INDOOR 455 × 1060 × 1025

OUTDOOR 1430 × 1050 × 445

INDOOR 40/55(88/121)

OUTDOOR 105/112(231/247)

FLARE

LIQUID 9.52(3/8 inc.)

GAS 15.88(5/8 inc.)

m 70 (chargeless:20)

m 30

R410A

CHARGE g 3400

POE

COOLING -15 to 43

HEATING -15 to 24

WIRED

ABS

mm Outer diameter 37.0 / Inner diameter 32.0

Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)

INDOOR

kW/kW

A CURRENT

m3/h

INDOOR

AIR
CIRCULATION
COOL/HEAT

OUTDOOR

COOLING

FAN TYPE x Q'ty

TYPE

FAN MOTOR OUTPUT W

COMPRESSOR

OUTDOOR

dB(A)

INDOOR

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

WEIGHT

TYPE

RATED / MAX

INDOOR

OUTDOOR

POWER SOURCE

MODEL NAME

CAPACITY

RATED / MAX

AVAILABLE VOLTAGE RANGE

DRAIN PIPE

MATERIAL

SIZE

DIMENSIONS
H × W × D

MAX LENGTH

PIPE

SIZE

REMOTE CONTROLLER

NET /
GROSS

mm

OUTPUT

TYPEREFRIGERANT OIL

REFRIGERANT

TYPE

GROSS

Coil

OUTDOOR

Coil

CASING COLOR

mm

Rows × Stages

STARTING METHOD

CONNECTION METHOD

kg(lbs)

NET

Rows × Stages

mm

INDOOR

OUTDOOR

mm

MAX HEIGHT

HEAT
EXCHANGER
TYPE

HEATING

STARTING CURRENT

MOISTURE REMOVAL

Fin

Fin

kW INPUT POWER

OUTDOOR

EER

COP

OPERATION(OUTDOOR) °C

FAN SPEED

COOL/HEAT

INDOOR

r.p.m

OUTDOOR

INDOOR

01-04

AUT30LUAS AUT36LUAS

AOT30LMAWL AOT36LMAW L

240V 50Hz 240V 50Hz

kW 8.50 / 10.00 10.00 / 11.20

BTU/h 29000 / 34100 34100 / 38200

kW 10.00 / 11.20 11.20 / 12.77

BTU/h 34100 / 38200 38200 / 43600

COOLING RATED/MAX 2.86 / 3.50 4.01 / 4.20

HEATING RATED/MAX 2.84 / 3.50 3.49 / 4.20

COOLING RATED/MAX 12.0 / 14.6 16.8 / 17.5

HEATING RATED/MAX 11.9 / 14.6 14.6 / 17.5

A 15 15

EER COOLING 2.97 2.49

COP HEATING 3.52 3.21

l/h (pints/h) 3.0(6.3) 4.0(8.40)

High

Med

Low

OUTDOOR High

High

Med

Low

Quiet

OUTDOOR High

INDOOR

OUTDOOR

INDOOR

OUTDOOR

High

Med

Low

53.0 / 55.0 54.0 / 55.0

W

Fin Pitch

Coil Dimensions

Fin Pitch

Coil Dimensions

INDOOR

OUTDOOR

INDOOR

OUTDOOR

INDOOR

OUTDOOR

INDOOR

OUTDOOR

LIQUID

GAS

m

m

CHARGE g

COOLING

HEATING

mm

Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m, Height difference : 0 m.(Outdoor unit - Indoor unit)

Copper tube

Aluminium

2 × 12

252 × 970 × 26.6

1.30

620 / 620

510 / 510

440 / 440

-

CASSETTE MODELS

INVERTER HEAT PUMP TYPE

INVERTER

Turbo × 1

Propeller × 1

100

103

DC TWIN ROTARY(INVERTER)

1300

850 / 900

Copper tube

Aluminium

798 × 900 × 36.38

2 × 38

1.30

White(5Y9/0.5NN)

Beige(10YR7.5/1.0NN)

296 × 830 × 830

830 × 900 × 330

455 × 1060 × 1025

970 × 1050 × 445

52 (115)

FLARE

37 (82)

64 (141)

9.52(3/8 inc.)

15.88(5/8 inc.)

70 (154)

50(chargeless:15)

WIRED

ABS

30

R410A

2200

POE

Outer diameter 37.0 / Inner diameter 32.0

1600 / 1600

1350 / 1350

1150 / 1150

3600 / 3800

48.0 / 48.0

44.0 / 44.0

41.0 / 41.0

-10 to 43

-10 to 24

W

OUTDOOR

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

Fin

Coil

INDOOR

HEAT
EXCHANGER
TYPE

OUTDOOR

TYPE

Rows x Stages

TYPE

MODEL NAME

OUTDOOR

POWER SOURCE

INDOOR

RATED/MAX

INPUT POWER

COOLING

HEATING

CAPACITY

RATED/MAX

STARTING CURRENT

REMOTE CONTROLLER

CASING COLOR

STARTING METHOD

Fin

COMPRESSOR

Rows x Stages

mm

INDOOR

INDOOR

DRAIN PIPE

MATERIAL

REFRIGERANT

SIZE

TYPE

OPERATION(OUTDOOR) °C

REFRIGERANT OIL

TYPE

mm

WEIGHT

NET

kg(lb)

DIMENSIONS
H × W × D

GROSS

GROSS

NET

PIPE

MAX HEIGHT

mm

CONNECTION METHOD

SIZE

MAX LENGTH

AVAILABLE VOLTAGE RANGE 198-264V 50Hz

m3/h

kW

AIR
CIRCULATION
COOL/HEAT

CURRENT

kW/kW

A

INDOOR

MOISTURE REMOVAL

r.p.m

OUTPUT

INDOOR

OUTDOOR

dB(A)

FAN TYPE x Q'ty

Coil

mm

FAN MOTOR OUTPUT

FAN SPEED
COOL/HEAT

01-05

CASSETTE MODELS

INVERTER HEAT PUMP TYPE

AUT45LUAS

AOT45LJBYL

240V 50Hz

198-264V 50Hz

kW 12.5 / 14.0

BTU/h 42700 / 47800

kW 14.0 / 16.0

BTU/h 48000 / 56300

COOLING RATED / MAX

4.45 / 5.15

HEATING RATED / MAX 3.95 / 4.60

COOLING RATED / MAX 18.6 / 22.6

HEATING RATED / MAX 16.6 / 20.0

A

15

EER COOLING 2.81

COP HEATING 3.54

l/h(pints/h)

4.5(9.5)

High 1750/1750

Med 1470/1470

Low 1250/1250

Quiet -

High 6600/6600

Low -

High 700/700

Med 600/600

Low 520/520

Quiet -

High Upper fan 850 , Lower fan 750

Low -

INDOOR

Turbo × 1

OUTDOOR P ropeller × 2

INDOOR

100

OUTDOOR 103 × 2

High

51 / 51

Med 49 / 49

Low 46 / 46

Quiet -

54 / 55.5

DC SCROLL(INVERTER)

W

2500

Inverter

Copper tube

Aluminium

3 × 12

Fin Pitch

1.4

Coil Dimensions

252 × 970 × 39.9

Copper tube

Aluminium

2 × 60

Fin Pitch

1.3

Coil Dimensions

1260 × 900 × 36.38

INDOOR W hite(5Y9/0.5NN)

OUTDOOR Beige(10YR7.5/1.0NN)

INDOOR

296 × 830 × 830

OUTDOOR

1290 × 900 × 330

INDOOR

455 × 1060 × 1025

OUTDOOR

1430 × 1050 × 445

INDOOR

40/55 (88/121)

OUTDOOR 105/112 (231/247)

FLARE

LIQUID 9.52(3/8 inc.)

GAS 15.88(5/8 inc.)

m 70 (chargeless:20)

m

30

R410A

CHARGE g 3400

POE

COOLING -15 to 43

HEATING -15 to 24

WIRED

ABS

mm

Outer diameter 37.0 / Inner diameter 32.0

Note: Specifications are based on the following conditions.
Cooling: Indoor temperature of 27 °CDB / 19 °CWB,and outdoor temperature of 35 °CDB/24 °CWB.
Heating: Indoor temperature of 20 °CDB / 15 °CWB,and outdoor temperature of 7 °CDB/6 °CWB.
Pipe length : 7.5 m , Height difference : 0 m.(Outdoor unit - Indoor unit)

Rows x Stages

Rows × Stages

mm

INDOOR

STARTING METHOD

Fin

Fin

m3/h

INDOOR

AIR
CIRCULATION
COOL/HEAT

AVAILABLE V OLTAGE RANGE

COOLING

OUTDOOR

kWINPUT POWE R

kW/ kW

A

FAN TYPE × Q'ty

TYPE

FAN MOTOR OUTPUT W

COMPRESSOR

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

OUTPUT

dB(A)

OUTDOOR

TYPE

RATED / MAX

INDOOR

OUTDOOR

POWER S OURCE

MODEL NAME

CAPACITY

RATED / MAXHEATING

DRAIN PIPE

MATERIAL

SIZE

DIMENSIONS
H × W × D

MAX LENGTH

PIPE

SIZE

kg(lbs)

NET

°C

CASING COLOR

mm

Coil

OUTDOOR

REMOTE CONTROLLER TYPE

NET /
GROSS

mm

CONNECTION METHOD

TYPEREFRIGERANT OIL

REFRIGERANT

TYPE

OPERATION(OUTDOOR)

STARTING CURRENT

MOISTURE REMOVA L

FAN SPEE D

COOL/HEAT

INDOOR

CURRENT

MAX HEIGHT

WEIGHT

r.p.m

OUTDOOR

INDOOR

mm

HEAT
EXCHANGER
TYPE

GROSS

Coil

AUT54LUAS

AOT54LJBYL

240V 50Hz

198-264V 50Hz

14.0 / 14.5

47800 / 49500

16.0 / 16.5

54600 / 56300

5.60 / 5.70

4.85 / 5.20

23.5 / 24.0

20.4 / 21.8

15

2.50

3.30

5.5(11.6)

1750/1750

1470/1470

1250/1250

-

6600/6600

-

700/700

600/600

520/520

-

Upper fan : 850 , Lower fan : 750

-

Turbo × 1

Propeller × 2

100

103 × 2

51 / 51

49 / 49

46 / 46

-

54 / 55.5

DC SCROLL(INVERTER)

2500

Inverter

Copper tube

Aluminium

3 × 12

1.4

252 × 970 × 39.9

Copper tube

Aluminium fin

2 × 60

1.3

1260 × 900 × 36.38

White(5Y9/0.5NN)

Beige(10YR7.5/1.0NN)

296 × 830 × 830

1290 × 900 × 330

455 × 1060 × 1025

1430 × 1050 × 445

40/55 (88/121)

105/112 (231/247)

FLARE

9.52(3/8 inc.)

15.88(5/8 inc.)

70 (chargeless : 20)

30

R410A

3400

POE

-15 to 43

-15 to 24

WIRED

ABS

Outer diameter 37.0 / Inner diameter 32.0

2 . DIMENSIONS

R410A

CASSETTE type

INVERTER

02-01

350

830

650

12

101

154

320

58

90

Top view

Front view

Side view

(Unit : mm)

(Unit : mm)

940 30

940

235

Drain inside Dia. 32

outside Dia. 37

750

830

750

830

Bottom view

305.5

298.5

248.5

200

60

(Drain pipe)

100

(Small pipe)

70

(Large pipe)

Side view (Slender setting)

Bottom view (Panel)

Side view (Standard setting)

2. DIMENSIONS

MODEL : AU*24LUAR

MODEL : AO*24LMAKL

02-02

MODEL : AU*30/ 36LUAS

MODEL : AO*30/ 36LMAWL

(Unit : mm)

900

830

99

196

21

9

77

31 330

400

170

147

12

Top view

Front view

Side view

750

830

750

830

Bottom view

Side view (Slender setting)

940

30

60

285

120

150

(Small pipe)

(Drain pipe)

(Large pipe)

250

940

305.5

298.5

248.5

Drain Inside Dia. 32

Dia. 37Outside

Bottom view (Panel)

Side view (Standard setting)

(Unit : mm)

02-03

MODEL : AU*45/ 54LUAS

MODEL : AO*45/ 54LJBYL

(Unit : mm)

900

1290

77 31

21

9

400

151

99

196

170

12

330

Top view

Side view

Front view

750

830

750

830

Bottom view

(Unit : mm)

Side view (Slender setting)

940

30

60

285

120

150

(Small pipe)

(Drain pipe)

(Large pipe)

250

940

305.5

298.5

248.5

Drain Inside Dia. 32

Dia. 37Outside

Bottom view (Panel)

Side view (Standard setting)

3 . REFRIGERANT SYSTEM DIAGRAM

R410A

CASSETTE type

INVERTER

03-01

Ø15.88mm(5/8")

Ø9.52mm(3/8")

3. REFRIGERANT CIRCUIT

MODEL : AU*24LUAR / AO*24LMAKL

Outdoor Unit Indoor Unit

CONDENSER EVAPOLATOR

HIGH
PRESSURE
SWITCH

THO

THO

THPO

THD

THR

THR

THPI

THPI

THD

THPO

COMPRESSOR

ACCUMULATOR

EXPANSION
VALVE

STRAINER

MUFFLER

4-Way
valve

THERMISTOR(DISCHARGE TEMP.)

THERMISTOR(ROOM TEMP.)

THERMISTOR(PIPE TEMP.)

THERMISTOR(OUTDOOR TEMP.)

THERMISTOR(PIPE TEMP.)

Refrigerant Pipe

Refrigerant Pipe

COOL
HEAT

03-02

Ø15.88mm(5/8")

Ø9.52mm(3/8")

MODEL : AU*30/ 36LUAS / AO*30/ 36LMAWL

Outdoor Unit Indoor Unit

CONDENSER

HIGH PRESSURE
SWITCH

PRESSURE
CHECK VALVE

THO

THO

THC

THPO

THD

THR

THR

THPI

THPI

THD

THC

THPO

COMPRESSOR

ACCUMULATOR

EXPANSION
VALVE

STRAINERSTRAINER

4-Way
valve

THERMISTOR(DISCHARGE TEMP.)

THERMISTOR(ROOM TEMP.)

THERMISTOR(PIPE TEMP.)

THERMISTOR(OUTDOOR TEMP.)

THERMISTOR(PIPE TEMP.)

THERMISTOR(COMP TOP TEMP.)

Refrigerant Pipe

Refrigerant Pipe

COOL
HEAT

EVAPOLATOR

Charging Valve

Charging Valve

03-03

Ø15.88mm(5/8")

Ø9.52mm(3/8")

MODEL : AU*45/ 54LUAS / AO*45/ 54LJBYL

Outdoor Unit Indoor Unit

CONDENSER

HIGH PRESSURE
SWITCH

PRESSURE
CHECK VALVE

THO

THO

THC

THPO

THD

THR

THPI

THR

THPI

THD

THC

THPO

COMPRESSOR

ACCUMULATOR

EXPANSION
VALVE

STRAINER

STRAINER STRAINER

4-Way
valve

THERMISTOR(DISCHARGE TEMP.)

THERMISTOR(ROOM TEMP.)

THERMISTOR(PIPE TEMP.)

THERMISTOR(OUTDOOR TEMP.)

THERMISTOR(PIPE TEMP.)

THERMISTOR(COMP TOP TEMP.)

Refrigerant Pipe

Refrigerant Pipe

COOL
HEAT

EVAPOLATOR

Charging Valve

Charging Valve

MUFFLER

4 . CIRCUIT DIAGRAM

R410A

CASSETTE type

INVERTER

04-01

4. CIRCUIT DIAGRAM

MODEL : AU*24LUAR

TO REMOTE
CONTROL UNIT

TERMINAL

1

2

3

1

2

3

THERMISTOR
(PIPE TEMP.)

THERMISTOR
(ROOM TEMP.)

STEPPING
MOTOR

FLOAT
SWITCH

DRAIN PUMP
MOTOR

FAN MOTOR

FAN MOTOR
CAPACITOR

BROWN

RED

RED

GRAY

GRAY

BLACK

BLACK

WHITE

RED

GRAY

GRAY

BLACK

WHITE

BLACK

ORANGE

YELLOW

WHITE

BLACK

BLACK

BLACK

GREEN

WHITE

BLACK

RED

WHITE

GREEN/YELLOW

BLACK

BLACK

WHITE

WHITE

WHITE

RED

PURPLE

BLUE

BLACK

BLACK

BLACK

YELLOW

YELLOW

BROWN

RED

ORANGE

YELLOW

WHITE

1
2
3
4
5

1
2
3
5
6

1
2
3
5
6

1
2
3

1
2
3

1 2 1 2

1 21 2

1
2
3

1
2
3

1
2
3

1
2
3

1
2
3

1
2

121

2

121

2

1
2

121

2

1
2
3

1
2
3

1
2
3

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

CN10CN15

CN6

CN1CN3

CN16CN5CN4

CN7

CN17

CN8

CONTROL BOARD

TO OUTDOOR UNIT

TERMINAL

THERMAL

FUSE 102 C

L
N

FILTER BOARD

Use T 3.15A 250V

Fuse on F101

FM

04-02

MODEL : AU*30/ 36/ 45/ 54LUAS

TO REMOTE
CONTROL UNIT

TERMINAL

1

2

3

1

2

3

THERMISTOR
(PIPE TEMP.)

THERMISTOR
(ROOM TEMP.)

STEPPING
MOTOR

FLOAT
SWITCH

DRAIN PUMP
MOTOR

FAN MOTOR

FAN MOTOR
CAPACITOR

BROWN

RED

RED

GRAY

GRAY

BLACK

BLACK

WHITE

RED

GRAY

GRAY

BLACK

WHITE

BLACK

ORANGE

YELLOW

WHITE

BLACK

BLACK

BLACK

GREEN

WHITE

BLACK

BLACK

WHITE

WHITE

WHITE

RED

BLACK

BLACK

BLACK

YELLOW

YELLOW

BROWN

RED

ORANGE

YELLOW

WHITE

1
2
3
4
5

1
3
5

1
3
5

2
1
3

2
1
3

1
2
3

1
2
3

1 2

1 2
1 2

1 2

1
2
3

1
2
3

1
2
3

1
2

121

2

121

2

1
2

121

2

1
2
3

1
2
3

1
2
3

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

CN10

CN15

CN6

CN1

CN3

CN5

CN4

CN7

CN17

CN8

CONTROL BOARD

TO OUTDOOR UNIT

TERMINAL

THERMAL

FUSE 102 C

L
N

FILTER BOARD

Use T 3.15A 250V

Fuse on F101

FM

04-03

MODEL : AO*24LMAKL

ACTIVE
FILTER
MODULE

WHITE

WHITE

CHOKE
COIL

CAPACITOR

CN11

CN407

CN37

CN38

CN21

CN22

CN23

CN25

L1

N1

P

L2

1 2 3 4 5 6

1 2 3 4

+

-

BROWN

YELLOW

YELLOW WHITE

PURPLE

BLUE

RED

RED

WHITE

BLACK

BLACK

BLUE

RED

RED
BROWN
BLUE
ORANGE
YELLOW
WHITE

BLACK

BLACK BLACK

WHITE

WHITE

GREEN

RED

WHITE

BLACK

BLACK

BLACK

BLACK

BLACK

RED

RED

BROWN

BROWN

BLACK

BLUE

BROWN

ORANGE

W10 W11 TM104 TM105

TM305

TM304

TM303

CN30

CN11

CN27

W102

W103

W4 W5 W8 W1 W2 W3

FUSE
F2 T 3.15A 250V

FUSE
F4 T 5A 250V

PRINTED
CIRCUIT
BOARD

4WV

COMPRESSOR

FAN MOTOR

FAN
CAPACITOR

EXPANSION
VALVE COIL A

U

V

W

1
2
3

1
2

1
2

1
2

1
2

1
2

1
2

1
2
3
4
5
6
7

1
2
3
4
5
6

FM

CONNECTOR

EV

TERMINAL

1 2(N) 3 L N

FUSE 25A

COMPRESSOR
PRESSURE SW

COMPRESSOR
THERMAL SW

THERMISTOR
(DISCHARGE)

THERMISTOR
(PIPE)

THERMISTOR
(OUTDOOR)

THERMISTOR
(HEAT SINK)

04-04

MODEL : AO*30/ 36LMAWL

CN21

U
W305

V
W304

W
W303

CN22 CN23 CN26 CN25

CN37

CN30

CN800

CN27

CN1

CN1

TM102

TM101

CN34

W9

W6W3 W7 W4 W5

W8

CN407

W12
W13

W21
W22

W200

W16
W17

W10
W11

1 2

1 2 3 4 1 2 3

1 2 3

1 2 1 2 1 2 1 2

BLACK

BLACK

WHITE

WHITE

GREEN

1 2(N) 3 L N

TO INDOOR UNIT

TO POWER SUPPLY

1
2

1
2
3

1
2
3
4
5
6
7

1
2
3
4
5
6

1
2
3
4
5

1
2
3
4
5
6

FUSE
F4 T 5A 250V

FUSE
F2 T 3.15A 250V

PRINTED
CIRCUIT
BOARD
(MAIN)

RED

BLACK

BLACK

BROWN

BLUE

BLACK

BROWN

BLACK

BLACK
WHITE

WHITE

YELLOW

YELLOW

BROWN

BROWN
BLUE
ORANGE

RED

RED

RED

RED

BLACK

WHITE

WHITE

BLACK

BLACK

ORANGE

BROWN
RED

REDRED

WHITEWHITE

BLACKBLACK

ORANGE

YELLOW

YELLOW

BLUE

WHITE

BROWN

ORANGE

RED

BLACK

BROWN

RED

4WV

FM

EV

HIGH PRESSURE SW

SOLENOID
COIL

EXPANSION
VALVE COIL

FAN MOTOR

THERMISTOR

(HEAT SINK)

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

PRINTED CIRCUIT
BOARD (FILTER)

EARTH

FUSE

10A

FUSE

25A

POSISTOR

TERMINAL

CHOKE
COIL

ACTIVE
FILTER
MODULE

L1

L2

P
N

EMI FILTER
2T

EMI FILTER
1T

CONNECTOR

COMPRESSOR

U

W

V

04-05

MODEL : AO*45/ 54LJBYL

CN21

U
W305

V
W304

W
W303

CN22 CN23 CN26 CN25

CN37

CN30

CN800

CN801

CN27

CN1

CN1

TM102

TM101

CN34

W9

W6W3 W7 W1 W2

W8

CN407

W14
W15

W107
W108

W200

1 2

1 2 3 4 1 2 3

1 2 3

1 2 1 2 1 2 1 2

BLACK

BLACK

GRAY

RED

BLACK

GRAY

BLACK

WHITE

WHITE

GREEN

1 2(N) 3 L N

1
2

1
2
3

1
2
3
4
5
6
7

1
2
3
4
5
6
7

1
2
3
4
5
6

1
2
3
4
5

1
2
3
4
5
6

F4 T 5A 250V
F2 T 3.15A 250V

PRINTED
CIRCUIT
BOARD
(MAIN)

RED

BLACK

BLACK

BROWN

BLUE

BLACK

BROWN

BLACK

BLACK
WHITE

WHITE

YELLOW

YELLOW

BROWN

BROWN
BLUE
ORANGE

RED

RED

BLACK
WHITE
YELLOW
BROWN

RED

RED

RED

BLACK

WHITE

WHITE

WHITE

WHITE

BROWN

YELLOW

BLUE

VIOLET

BLACK

ORANGE

BROWN
RED

REDRED

WHITEWHITE

BLACKBLACK

ORANGE

YELLOW

ORANGE

BLACK

BROWN

RED

4WV

FM

FM

EV

HIGH PRESSURE SW

SOLENOID
COIL

EXPANSION
VALVE COIL

FAN MOTOR 1

FAN MOTOR 2

THERMISTOR

(HEAT SINK)

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

PRINTED CIRCUIT
BOARD (FILTER)

EARTH

FUSE

10A

POSISTOR

CHOKE
COIL

ACTIVE
FILTER
MODULE

L1

L2

P
N

EMI FILTER
1T

EMI FILTER
2T

EMI FILTER
2T

EMI FILTER
2T

EMI FILTER
3T

EMI FILTER
1T

CONNECTOR

COMPRESSOR

U

W

V

TERMINAL

TERMINAL

DIODE BRIDGE

RELAY

FUSE

TO INDOOR UNIT

TO POWER SUPPLY

5 . DESCRIPTION OF EACH
CONTROL OPERATION

R410A

CASSETTE type

INVERTER

5-1. COOLING OPERATION

5-1-1 COOLING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is 2 degC higher than a set temperature,
the compressor operation frequency will attain to maximum performance.

* If the room temperature is 2 degC lower than a set temperature, the compressor
will be stopped.

* When the room temperature is between +2 degC to -2 degC of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Figure 1 based on the
fan speed mode and the outdoor temperature.

minimum
frequency

maximum
frequency

AU*24LUAR 15Hz

20Hz
20Hz
20Hz

75Hz
90Hz
90Hz
92Hz

AU*30LUAS
AU*36LUAS
AU*45LUAS

20Hz 92Hz

AU*54LUAS

Outdoor air
temperature

A zone

31°C

B zone

C zone

D zone

Hi Me Lo

A zone 75Hz

52Hz
42Hz
36Hz
90Hz
70Hz
65Hz
55Hz
90Hz

92Hz
72Hz
60Hz
60Hz

75Hz
70Hz
65Hz

52Hz
42Hz

52Hz
42Hz

36Hz 36Hz

45Hz
75Hz
70Hz
65Hz
55Hz
72Hz
60Hz

45Hz
75Hz
70Hz

60Hz

60Hz

53Hz

53Hz

65Hz

30Hz
70Hz
65Hz

30Hz
70Hz

55Hz
72Hz
60Hz

65Hz

55Hz

55Hz

B zone
C zone

AU*24LUAR

D zone
A zone
B zone
C zone

AU*30LUAS

D zone
A zone
B zone
C zone

AU*36LUAS

D zone
A zone
B zone

C zone

AU*45LUAS

AU*54LUAS

D zone

92Hz
85Hz
72Hz
67Hz

85Hz
72Hz
67Hz

67Hz

60Hz

60Hz

85Hz
72Hz

A zone
B zone
C zone
D zone

19°C

11°C

( Table 1 : Compressor Frequency Range )

( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )

05-01

Fan speed mode

5. DESCRIPTION OF EACH CONTROL OPERATION

5-2. HEATING OPERATION

5-2-1 HEATING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is lower 3 degC than a set temperature,
the compressor operation frequency will attain to maximum performance.

* If the room temperature is higher 2 degC than a set temperature, the compressor
will be stopped.

* When the room temperature is between +2 degC to -3 degC of the setting temperature,
the compressor frequency is controlled within the range shown in Table2.
However, the maximum frequency is limited in the range shown in Figure 2 based on
the outdoor temperature.

( Table 2 : Compressor Frequency Range )

( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature )

05-02

Outdoor air
temperature

C zone

B zone

A zone

A zone 75Hz

75Hz
75Hz
95Hz
90Hz
80Hz
95Hz
90Hz
80Hz

92Hz
90Hz
80Hz

92Hz
90Hz
80Hz

B zone
C zone

A zone
B zone
C zone

A zone
B zone
C zone

A zone
B zone
C zone

A zone
B zone
C zone

AU*24LUAR

AU*30LUAS

AU*36LUAS

AU*45LUAS

AU*54LUAS

16°C

12°C

Limit of Maximum
Frequency

minimum
frequency

maximum
frequency

AU*24LUAR 15Hz

20Hz
20Hz
20Hz

75Hz
95Hz
95Hz
92Hz

AU*30LUAS
AU*36LUAS
AU*45LUAS

20Hz 92Hz

AU*54LUAS

5-3. DRY OPERATION

5-3-1 INDOOR UNIT CONTROL

The compressor rotation frequency shall change according to set temperature and room
temperature variation which the room temperature sensor of the indoor unit has detected
as shown in the Table 3.

Room
temperature

Room
temperature

Compressor ON

Ts+1.5 degC

Ts+1 degC

Compressor OFF

Compressor

ON

ON

OFF

Indoor fan

air flow mode

Air flow mode : Lo

OFF

30 5 30 120 5 (sec)

180 180

( Table 3 : Compressor frequency )

( Fig.3 : Compressor Control based on Room Temperature )

( Fig.4 : Indoor Fan Control )

05-03

Operating frequency

AU*24LUAR 28Hz

45Hz
45Hz
30Hz

AU*30LUAS
AU*36LUAS
AU*45LUAS

53Hz

AU*54LUAS

Ts : Setting temperature

5-4. AUTO CHANGEOVER OPERATION

When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the HEATING, COOLING and MONITORING modes. During operation, the
optimum mode is automatically swiched in accordance with temperature changes. The temperature
can be set between 18°C and 30°C in 1 degC steps.

When operation starts, only the indoor fan is operated for 1 minute. (Air flow mode: S- Lo)
After 1 minute, depends on the room temperature and outdoor unit's operarion mode,
the operation mode is selected in accordance with the table below.

( Table 4 : Operation mode selection table )

When COOLING was selected at , the same operation as COOLING OPERATION is performed.

When HEATING was selected at , the same operation as HEATING OPERATION is performed.

When the compressor was stopped for 6 consecutive minutes by the temperature control function
after the COOLING or HEATING operation mode was selected at above, operation is switched
to MONITORING and the operation mode is selected again.

1

1

2

3

1

4

1

05-04

Room temperature :TR

Operation mode

TR > Ts +2 degC

Ts +2 degC > TR

=

=

Ts +2 degC > TR > Ts -2 degC

Cooling

Monitoring

Heating

Ts : Setting temperature

5-5. INDOOR FAN CONTROL

1. Fan speed

( Table 5 : Indoor Fan Speed )

AU*24LUAR

Operation mode Air flow mode Speed (rpm)

Hi 490

430
340
250

Me

Lo

Heating

S-Lo

2. FAN OPERATION

The airflow can be switched in 4 steps such as AUTO, LOW, MED, HIGH, while the indoor
fan only runs.

05-05

Hi 540

480
390
250

Me

Lo

Cooling

S-Lo

AU*30LUAS

Operation mode Air flow mode Speed (rpm)

Hi 620

510
440
300

Me

Lo

Heating

S-Lo

Hi 620

510
440
300

Me

Lo

Cooling

S-Lo

AU*36LUAS

Operation mode Air flow mode Speed (rpm)

Hi 620

510
440
300

Me

Lo

Heating

S-Lo

Hi 620

510
440
300

Me

Lo

Cooling

S-Lo

AU*54LUAS

Operation mode Air flow mode Speed (rpm)

Hi 700

600
520
300

Me

Lo

Heating

S-Lo

Hi 700

600
520
300

Me

Lo

Cooling

S-Lo

AU*45LUAS

Operation mode Air flow mode Speed (rpm)

Hi 700

600
520
300

Me

Lo

Heating

S-Lo

Hi 700

600
520
300

Me

Lo

Cooling

S-Lo

When [AUTO] is selected, the indoor fan motor runs LO and OFF at 1 minute intervals.

4. HEATING OPERATION

When the airflow is set to [AUTO], the indoor fan
motor operates [MED] mode.
Then the indoor fan motor will run according
to a room temperature, as shown in Figure 6.

On the other hand, if switched in [HIGH] [LOW],
the indoor motor will run at a constant airflow
of [COOL] operation modes LOW, MED, HIGH,
as shown in Table 5.

5. COOL AIR PREVENTION CONTROL (Heating mode)

6. DRY OPERATION

Refer to the Figure 4.
During the dry mode operation, the fan speed setting can not be changed.

05-06

47°C

41°C

SETTING
FAN MODE

LO mode

S-LOW mode

33°C

30°C

30°C

Indoor heat exchanger
temperature

Indoor heat exchanger
temperature

Indoor heat exchanger
temperature

The maximum value of the indoor fan speed is set as shown in Figure 7, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.

( Fig.6 : Airflow change - over ( Heating : AUTO ) )

( Fig.7 : Cool Air Prevention Control )

Hold

Go down one-step

Go up one-step

3. COOLING OPERATION

Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 5.
On the other hand, if switched in [HIGH] [LOW], the indoor motor will run at a constant airflow of [COOL]
operation modes LOW, MED, HIGH,as shown in Table 5.

( Fig.5 : Airflow change - over ( Cooling : AUTO ) )

When the room
temperature rises

When the room
temperature drops

TR : Room temperature
Ts : Setting temperature

TR-Ts > 2 degC

=

1 degC > TR-Ts

2 degC > TR-Ts > 1 degC

=

TR-Ts > 3 degC

=

2 degC > TR-Ts

3 degC > TR-Ts > 2 degC

=

HIGH mode

MED mode

LOW mode

*1

*1 : Contains a condition to the following

When the operation mode is set to AUTO mode
at the start of operation.
When the setting temperature was changed.
When the operation mode was changed to COOLING mode.
When the airflow mode was changed to AUTO mode.

5-6. OUTDOOR FAN CONTROL

1. Outdoor Fan Motor

Following table shows the fan speed of the outdoor unit.

*

The outdoor fan speed changs in the range mentioned avobe depending on the compressor
frequency and outdoor temperature.
(When the compressor frequency and outdoor temperature increase, the outdoor fan speed
also changes to the higher speed.
When the compressor frequency and outdoor temperature decrease, the outdoor fan
speed also changes to the lower speed.)

*

AU*45/ 54LUAS have two fan motors.

*

For AU*24LUAR
When the outdoor heat exchanger tenperature is lower than 2°C,
the fan speed switches to 780rpm on heating mode.

For AU*30/ 36LUAS
It runs at 500rpm for 20 seconds after starting up the outdoor fan.
When the outdoor heat exchanger tenperature is lower than 2°C,
the fan speed switches to 900rpm on heating mode.

For AU*45/ 54LUAS
It runs at 500rpm for 20 seconds after starting up the outdoor fan.
When the outdoor heat exchanger tenperature is lower than 2°C,
the fan speed switches to 850rpm(Upper fan) and 750rpm(Lower fan) on heating mode.

*

*

05-07

( Table 6 : Fan speed of the outdoor unit )

780/ 400 rpm

850/ 780/ 400/ 250/ 170 rpm

850/ 780/ 400/ 350/ 300 rpm

780/ 750/ 350/ 0 rpm

900/ 780/ 400/ 250/ 170 rpm

850/ 780/ 350/ 200/ 150 rpm

780/ 750/ 350/ 200/ 150 rpm

780/ 400 rpm

Cooling

Heating

AU*24LUAR

AU*36LUAS

AU*30LUAS

AU*45LUAS
AU*54LUAS

Upper fan

Lower fan

5-7. LOUVER CONTROL

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Cooling / Dry mode

Heating mode

Fan mode

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation
selected.

Cooling / Dry / Fan mode Horizontal flow
Heating mode Downward flow

(Function Range)

(Fig.8 : Air Direction Range)

(Operation Range)

2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing.
The range of swing depends on the set airflow direction.

(Swinging Range)

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted
and the louver stops at the memorized position.

05-08

1

2

3

4

The indoor fan motor starts after the louver reaches to the setting position.

For AU*24LUAR
At the start of operation if the setting louver position is ,the setting position is set to
after the louver moves from totally-enclosed position to . (Positioning Control)

For AU*30/ 36/ 45/ 54LUAS
At the start of operation if the setting louver position is or ,the setting position is set to or
after the louver moves from totally-enclosed position to . (Positioning Control)

( Stop mode means Operation stop.)

Airflow direction set Range of swing

to
to
to
to

5-8. COMPRESSOR CONTROL

1. OPERATION FREQUENCY RANGE

The operation frequency of the compressor is different based on the operation mode as

shown in Table 7.

Cooling Heating

Min Max Min Max

Dry

(Table 7 : Compressor Operation Frequency Range)

05-09

AU*24LUAR

15Hz
20Hz
20Hz
20Hz

75Hz
90Hz
90Hz
92Hz

AU*30LUAS
AU*36LUAS
AU*45LUAS

15Hz
20Hz
20Hz
20Hz

75Hz
95Hz
95Hz
92Hz

28Hz
45Hz
45Hz
30Hz

20Hz

92Hz

AU*54LUAS

20Hz

92Hz

53Hz

2. OPERATION FREQUENCY CONTROL AT START UP

2-1. For AU*24LUAR

The compressor frequency soon after the start-up is controlled as shown in Figure 9.

(Fig.9 : Compressor Control at Start-up)

56Hz

46sec 60sec 80sec 160sec

80Hz

Hold

2-2. For AU*30/ 36/ 45/ 54LUAS

The compressor frequency soon after the start-up is controlled as shown in Figure 10.

(Fig.10 : Compressor Control at Start-up)

05-10

(Frequency)

(Time)

Frequency

Frequency

Frequency

Frequency

AU*30LUAS
AU*36LUAS
AU*45LUAS
AU*54LUAS

180sec

60sec

120sec

120sec

720sec

180sec

80sec

180sec

180sec

720sec

40Hz

56Hz

56Hz

70Hz

AU*30LUAS
AU*36LUAS
AU*45LUAS

AU*54LUAS

Time A Time B Time C

Time E

Time D

Time A Time B Time C Time D Time E

1

2

1 Discharge pipe temp. > 30°C

2 Discharge pipe temp. < 30°C

1 Discharge pipe temp. > 35°C

2 Discharge pipe temp. < 35°C

=

=

For AU*30/ 36LUAS

For AU*45/ 54LUAS

Hold

5-9. TIMER OPERATION CONTROL

1. ON / OFF TIMER

OFF timer : When the clock reaches the set time, the air conditioner will be turned off.

Operation mode

Stop mode

Set time of timer

ON timer : When the clock reaches the set time, the air conditioner will be turned on.

Operation mode

Stop mode

Set time of timer

The weekly timer allows up to two ON and OFF time to set up per day.

Use this timer function to set operating time for each day of the week.

Operation mode

The operating time can be set in 30 min increments only.
The OFF time can be carried over to next day.
The ON timer and the OFF timer functions cannot be set with using the weekly timer.

Both ON and OFF time must be set.

2. WEEKLY TIMER

2-1. WEEKLY TIMER

Stop mode

Stop mode

Stop mode

Operation mode

Operation mode

Set time

Set time Set time Set time

05-11

AR-3TA14

5-9-1 Wired Remote Controller

ON / TIMER

OFF / TIMER

WEEKLY TIMER

TEMPERATURE SET BACK TIMER

05-12

The DAY OFF setting is only available for days for which weekly settings already exist.

The DAY OFF setting can only be set one time. The DAY OFF setting is cancelled automatically
after the set day has passed.

Normal

Next day setting

If the operating time carries over to the next day (during a next day setting), the effective
DAY OFF range will be set as shown below.

2-2. DAY OFF setting

Stop mode

Stop mode

Operation mode

Stop mode

Operation mode

Preceding day Next day

DAY OFF

Stop mode

Stop mode

Operation mode

Stop mode

Operation mode

DAY OFF

Setting day

Preceding day Next daySetting day

The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop
air conditioner operation.

The SET BACK timer can be set to operate up to two times per day but only one temperature setting
can be used.

During the COOL/DRY mode, the air conditioner will operate at a minimum of 18°C even if
the SET BACK temperature is set to 17°C or lower.

3. TEMPERATURE SET BACK TIMER

Case of SET BACK timer on the Cooling operation.
( Setting temperature :22°C, SET BACK temperature :26°C)

SET BACK setting

Operation
temperature

Operation
temperature

26°C

22°C

26°C

22°C

24°C

*1

ON OFF OFFON

*1: During the SET BACK function,
the setting temperature is changed.

Chenge the setting temperature:
22°C 24°C

5-10. ELECTRONIC EXPANSION VALVE CONTROL

The most proper opening of the electronic expansion valve is calculated and controlled under the
present operating condition based on the following values.
The compressor frequency, the temperatures detected by the discharge temperature sensor
and the outdoor temperature sensor.

The pulse range of the electronic expansion valve control is between 50 to 480 pulses.

At the time of supplying the power to the outdoor unit, the initialization of the electronic
expansion valve is operated (1000 pulses are input to the closing direction).

5-11. TEST OPERATION CONTROL

Under the condition where the air conditioner stops, press the MASTER CONTROL button and
the FAN CONTROL button simultaneously for 5 seconds or more, and the test operation control
mode will appear.
During test running, " " will display on the remote controller display.
Set the test operation mode, and the compressor will continue to run regardless of whatever
the room temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.

The compressor won't enter operation status for 3 minutes after the compressor is stopped,
even if any operation is given.

At the time when the air conditioner is switched from the cooling mode to heating mode,
the compressor is stopped, and the 4-way valve is switched in 3 minutes later
after the compressor stopped.

When the power was interrupted by a power failure, etc. during operation, the operation contents
at that time are memorized and when power is recovered, operation is automatically resumed with
the memorized operation contents.
When the power is interrupted and recovered during timer operation, timer operation is canceled,
but only setting time is memorized.

[Operation contents memorized when the power is interrupted]

Operation mode
Set temperature

Set air flow

Timer mode and timer time
Air flow Direction

Swing

Thermistor detected position

5-12. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )

5-13. 4-WAY VALVE EXTENSION SELECT

5-14. AUTO RESTART

05-13

With Wired Remote Controller

When the outdoor heat exchanger temperature is lower than Operation temperature (Refer to Table 8) and the heating
operation has

been stopped for 3 hours, power is applied to the compressor and the compressor is heated.
(By heating the compressor, warm air is quickly discharged when operation is started.)
When operation was started, and when the outdoor temperature rises to Release temperature or greater,
preheating

is over.

5-16. COMPRESSOR PREHEATING

(Table 8 : Preheating Operation / Release Temperature)

05-14

5-15. PUMP DOWN ( For AU*30/ 36/ 45/ 54LUAS )

When the product is stopped:

1. Press the PUMP DOWN switch (SW2) on the outdoor unit.
(The LED on the outdoor unit circuit board flickers every 1second.)

2. The pump down operation (cooling operation) begins right away.
After operation starts, close the 3-way valve (liquid).

3. After 2-3minutes, operation stops. Close the 3-way valve (gas) within 1minute after operations stops.

4. The LED will go out 3minutes after it stops. Disconnect the power supply after confirming that the LED has gone out.

When the product is operating:

1. Press the PUMP DOWN switch (SW2) on the outdoor unit. The LED on the outdoor unit circuit board flickers
every 1second, and operation stops.
At this point, recovery has not been completed, so do not close the 2 and 3-way valves.

2. The pump down operation (cooling operation) begins after 3minutes.
Close the 3-way valve (liquid) after operation starts.

3. After 2-3minutes, operation stops. Close the 3-way valve (gas) within 1minute after operations stops.

4. The LED will go out 3minutes after it stops. Disconnect the power supply after confirming that the LED has gone out.

Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit.

Before 24 hour After 24 hour

Operation
temperature

Operation
temperature

Release
temperature

Release
temperature

3°C 7°C 0°C 4°C

05-15

2. CONDITION OF THE DEFROST OPERATION COMPLETION

Defrost operation is released when the conditions become as shown in Table 10-1.

(Table 10-1 : Defrost Release Condition)

Release Condition

Outdoor heat exchanger temperature sensor value is higher than 10°C or
Compressor operation time has passed 15 minutes.

5-17. DEFROST OPERATION CONTROL

1. CONDITION OF STARTING THE DEFROST OPERATION

The defrost operation starts when the outdoor heat exchanger temperature sensor detects
the temperature lower than the values shown in Table 9-1.

(Table 9-1 : Condition of starting Defrost Operation)

Less than 6 min. *1
or 10min. *2

AU*24LUAR

AU*24LUAR

*2. Compressor stop time: Below 20min. Select 6min.
Above 20min. Select 10min.

After 6 min. *1
or 10min. *2

Compressor integrating
operation :Less than 40min.

Compressor integrating
operation :40min and over

-8°C

Does not operate

*1. It means contiguous operation time.

1-1. For AU*24LUAR

2-1. For AU*24LUAR

Defrost operation is released when the conditions become as shown in Table 10-2.

(Table 10-2 : Defrost Release Condition)

Release Condition

Outdoor heat exchanger temperature sensor value is higher than 12°C or
Compressor operation time has passed 15 minutes.

2-2. For AU*30/ 36/ 45/ 54LUAS

1-2. For AU*30/ 36/ 45/ 54LUAS

The defrost operation starts when the outdoor heat exchanger temperature sensor detects
the temperature lower than the values shown in Table 9-2.

(Table 9-2 : Condition of starting Defrost Operation)

Less than 6 min. *1
or 10min. *2

AU*30LUAS
AU*36LUAS
AU*45LUAS
AU*54LUAS

AU*30LUAS
AU*36LUAS

AU*45LUAS

AU*54LUAS

*3. Outdoor temp. > -1°C
*4. Outdoor temp. < -1°C

*2. Compressor stop time: Below 20min. Select 6min.
Above 20min. Select 10min.

After 6 min. *1
or 10min. *2

Compressor integrating
operation :Less than 45min.

Compressor integrating
operation :45min and over

-8°C *3

-10°C *4

-8°C *3

-10°C *4

Does not operate

Does not operate

=

Outdoor temp. ­Outdoor heat exchanger
temp.

Outdoor heat
exchanger temp.

12 degC

-20°C

*1. It means contiguous operation time.

3. Defrost Flow Chart

3-1. For AU*24LUAR

The defrosting shall proceed by the integrating operation time as follows.

(Not defrosted for 6 or 10 minutes)

3 sec later Compressor OFF
3 sec later Outdoor fan motor OFF
28 sec later 4-way valve OFF
34 sec later compressor ON
(Frequency : 95 Hz)

Heating operation start : Compressor ON

Defrost Indicator:
[Operation lamp]
9 sec ON / 1 sec OFF

Outdoor heat exchanger temperature: Over 10°C
or
Compressor ON time: Over 15 minutes

Defrost end

05-16

Compressor integrating operation: 40 minutes and over

Outdoor heat exchanger temperarure: Below -8°C

Defrost start

3-2. AU*30/ 36/ 45/ 54LUAS

The defrosting shall proceed by the integrating operation time and outdoor heat exchanger temperature as follows.

(Not defrosted for 6 or 10 minutes)

3 sec later Compressor OFF
3 sec later Outdoor fan motor OFF
28 sec later 4-way valve OFF
34 sec later compressor ON
(Frequency : 92 Hz)

Outdoor fan motor : Low
Compressor : 30 Hz
4-way valve OFF
Outdoor fan motor OFF
Compressor ON
(Frequency : 92 Hz)

Heating operation start : Compressor ON

Defrost start

Defrost Indicator:
[Operation lamp]
9 sec ON / 1 sec OFF

Outdoor heat exchanger temperature: Over 12°C
or
Compressor ON time: Over 15 minutes

Defrost end

05-17

Compressor integrating
operation:
45 minutes and over

Outdoor heat exchanger
temperarure:
Below -10°C

Outdoor heat exchanger
temperarure:
Below -8°C

Outdoor temp. > -1°C

=

Outdoor temp. < -1°C

Compressor integrating
operation:
45 minutes and over

Outdoor temp ­Outdoor heat exchanger
temperature:
Above 12 degC

Outdoor heat exchanger
temperarure:
Below -10°C

Outdoor heat exchanger
temperarure:
Below -20°C

Outdoor heat exchanger
temperarure:
Below -8°C

Outdoor temp. > -1°C

=

Outdoor temp. < -1°C

AU*30/ 36LUAS

AU*45/ 54LUAS

Defrost start

Defrost Indicator:
[Operation lamp]
9 sec ON / 1 sec OFF

5

5-18. DRAIN PUMP OPERATION

1. When the compressor starts, the drain pump starts simultaneously.

2. The drain pump operates continuously for 3 minutes after the compressor is turned off.

3. When the compressor stops by the "Indoor heat exchanger de-icing function", the drain pump is turned off in 1 hour
after the compressor stops.

4.When the water level in the drain pan rises up and then the float switch functions:
The compressor, indoor and outdoor fan motor operation are stopped.
Drain pump operates continuously for 3 minutes after the float switch is turned off.
(Almost condensing water may be drained)

5. When the float switch turns ON continuously for 3 min., "FAILURE INDICATION" operates.

6. When the float switch turns OFF within 3 min., the unit starts cooling operation.

1
2

1.When the water level in the drain pan rises up and then the float switch functions:
Drain pump operates continuously for 3 minutes after the float switch is turned off.
(Almost condensing water may be drained)

2. When the float switch turns ON continuously for 3 min., "FAILURE INDICATION" operates.

1

During Cooling / Dry operation

During Heating / Fan / Stop operation

5-19. ENERGY SAVE FUNCTION

1. During Cooling / Dry operation:

The thermostat temperature setting increases by 1 degC as soon as the ENERGY SAVE button is pressed,
and then increases by 1 degC after 1 hour later.
Afterwards, energy consumption is saved by continuing to cool or dry at a thermostat temperature of 2 degC
higher than setting temperature.

2. During Heating operation:

The thermostat temperature setting decreases by 1 degC as soon as the ENERGY SAVE button is pressed,
and then decreases by another 1 degC every 30 minutes.
Afterwards, energy consumption is saved by continuing to heat at a thermostat temperature of 4 degC
lower than setting temperature.

1hour.

1 degC

2 degC

ENERGY
SAVE ON

Setting
temperature

1degC 2degC 3degC 4degC

30min.

1 hour.

1 hour
30 min.

ENERGY
SAVE ON

Setting
temperature

05-18

5-20. VARIOUS PROTECTIONS

1. DISCHARGE GAS TEMPERATURE OVER RISE PREVENTION CONTROL

The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas
temperature.

When the discharge temperature becomes higher than Temperature ,the compressor frequency
is decreased 10 Hz, and it continues to decrease the frequency for 10 Hz every 120 seconds until
the temperature becomes lower than Temperature .
When the discharge temperature becomes lower than Temperature ,the control of the compressor
frequency is released.

When the discharge temperature becomes higher than Temperature ,the compressor stops.
When the discharge temperature becomes lower than Temperature ,the compressor operates.

(Table 11 : Discharge Temperature Over Rise Prevention Control / Release Temperature)

2. CURRENT RELEASE CONTROL

2-1. For AR*24LUAR

The compressor frequency is controlled so that the outdoor unit input current does not exceeds
the current limit value.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.

(Table 12-1 : Current Release Operation Value / Release Value)

Current Release
Operation Value

Release Value

05-19

Temperature Temperature Temperature Temperature

AU*24LUAR
AU*30LUAS
AU*36LUAS
AU*45LUAS
AU*54LUAS

110°C 105°C 120°C 80°C

AU*24LUAR

12.0A 11.5A

05-20

[ Heating ]

AU*45LUAS
AU*54LUAS

T0 > 12°C

T0 < 12°C

=

T0: Outdoor temperature

780 rpm850 rpm 350 rpm 200 rpm 150 rpm

23.5A / 23.0A 20.0A / 19.5A

23.5A / 23.0A 23.5A / 23.0A 23.5A / 23.0A 23.5A / 23.0A

20.0A / 19.5A 15.0A / 14.5A 12.0A / 11.5A

Outdoor unit fan speed

[ Cooling ]

AU*45LUAS
AU*54LUAS

T0 > 45°C

=

T0: Outdoor temperature

780 rpm850 rpm 400 rpm 350 rpm 300 rpm

12.0A / 11.5A

20.0A / 19.5A 20.0A / 19.5A

23.5A / 23.0A

12.0A / 11.5A 12.0A / 11.5A

18.0A / 17.5A

20.0A / 19.5A

12.0A / 11.5A

18.0A / 17.5A

12.0A / 11.5A

15.0A / 14.5A

18.0A / 17.5A

Outdoor unit fan speed

[ Cooling ]

AU*30LUAS
AU*36LUAS

T0 > 45°C

T0 < 0°C

T0 < 13°C

45°C > T0 > 38°C

=

=

45°C > T0 > 38°C

=

38°C > T0 > 31°C

=

31°C > T0 > 25°C

=

25°C > T0 > 19°C

=

19°C > T0 > 13°C

=

13°C > T0 > 0°C

=

19°C > T0 > 13°C

=

38°C > T0 > 19°C

=

T0: Outdoor temperature

780 rpm850 rpm 400 rpm 250 rpm 170 rpm

10.0A / 9.5A

14.0A / 13.5A 14.0A / 13.5A

15.0A / 14.5A

18.0A / 17.5A

10.0A / 9.5A 10.0A / 9.5A

15.0A / 14.5A

7.0A / 6.5A

12.0A / 11.5A

5.5A / 5.0A

7.0A / 6.5A

9.5A / 9.0A

Outdoor unit fan speed

2-2. For AU*30/ 36/ 45/ 54LUAS

The compressor frequency is controlled so that the outdoor unit input current does not exceeds
the current limit value that was set up with the outdoor temperature.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.

(Table 12-2 : Current Release Operation Value / Release Value)

[ Heating ]

AU*30LUAS
AU*36LUAS

T0 > 16°C

T0 < 5°C

16°C > T0 > 5°C

=

=

T0: Outdoor temperature

780 rpm900 rpm 400 rpm 250 rpm 170 rpm

15.0A / 14.5A 15.0A / 14.5A

18.0A / 17.5A 18.0A / 17.5A 18.0A / 17.5A18.0A / 17.5A

13.0A / 12.5A 10.0A / 9.5A 8.0A / 7.5A

18.0A / 17.5A

Outdoor unit fan speed

3. ANTI-FREEZING CONTROL (Cooling mode)

The compressor frequency decreases on cooling mode when the indoor heat exchanger
temperature sensor detects the temperature lower than 3°C.
Then, the anti-freezing control is released when it becomes higher than 6°C.

(Fig.11 : Anti-freezing Protection Operation / Release Temperature)

4. COOLING PRESSURE OVER RISE PROTECTION

When the outdoor unit heat exchange sensor temperature rises to 70.5°C or greater,
the compressor is stopped and error display is indicated.

Indoor heat exchange
temperature

5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )

On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.

(Fig.12 : Heating Overload Protection Control)

05-21

63°C

54°C

50°C

Compressor is OFF

The compressor frequency is
decreased 10Hz every 60seconds.

Compressor OFF :
Release of protection
Compressor ON :
The compressor frequency is
increased 10Hz every 60seconds.

Hold

Indoor heat exchange
temperature

3°C

6°C

12°C

The compressor frequency is
decreased 10Hz every 120seconds.

Compressor OFF : Hold
Compressor ON : Release of protection

Hold

Release of protection

When the compressor frequency becomes lower than minimum frequency,
the compressor operates at minimum frequency.
If the indoor heat exchanger temperature sensor detects the temperature lower than
3°C after 2minutes upon operating the compressor at minimum frequency,

the compressor stops.

6 . REFRIGERANT CAUTION -R410A-

R410A

CASSETTE type

INVERTER

6-1. R410A TOOLS

Gauge manifold . . . . . . . . . . . . . . . . . . . . . (Fig.4-1)

Since the normal pressure is high, the connection pipe size
is also different.

Charge hose . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-2)

Refrigerant cylinder . . . . . . . . . . . . . . . . . (Fig.4-3)

Confirm the refrigerant type before charging. Always
charge liquid-phase refrigerant.

Electronic balance for refrigerant

charging . . . . . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-4)

Electronic balance is recommended as in the case of
R410A.

Vacuum pump with adapter to prevent

reverse flow . . . . . . . . . . . . . . . . . . . . . . . .(Fig.4-5)

Conventional pump can be used.

Vacuum holder . . . . . . . . . . . . . . . . . . . . . (Fig.4-6)

Conventional pump can be used if adapter for preventing
vacuum pump oil from flowing back is used.

Gas leakage tester . . . . . . . . . . . . . . . . . . (Fig.4-7)

Exclusive for HFC

Refrigerant cleaner . . . . . . . . . . . . . . . . . . (Fig.4-8)

Brown paint as designated by the ARI, USA

Flare tool . . . . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-9)

Torque wrench . . . . . . . . . . . . . . . . . . . . (Fig.4-10)

Refrigerant recovering

equipment (Collector) . . . . . . . . . . . . . . (Fig.4-11)

The type which can be used for any refrigerant is available

Nitrogen cylinder . . . . . . . . . . . . . . . . . . . (Fig.4-12)

This prevents an oxide film from forming in the pipe silver­alloy brazing work by turning the air out of the pipe and
preventing the inside combustion.

Safety charger . . . . . . . . . . . . . . . . . . . . . (Fig.4-13)

It is always compulsory to change the liquid, because
R410A is a mixed refrigerant and there is some fear that a
mixing ratio changes. In order to avoid the refrigerant from
returning to the compressor in a liquid state, the refrigerant
can be charged instead of giving a load to the compressor
with a safety charger.

Control valve . . . . . . . . . . . . . . . . . . . . . . (Fig.4-14)

The control valve prevents the refrigerant from spouting
when it is removed, as the charging hose side and the ser­vice port side are possible to open and close at the same
time.

Thermistor vacuum gauge . . . . . . . . . . . (Fig.4-15)

To remove moisture from the refrigerating cycle complete­ly, it is necessary to perform appropriate vacuum drying.
For that reason, vacuum conditions can be confirmed cer­tainly.

Vacuum valve . . . . . . . . . . . . . . . . . . . . . (Fig.4-16)

This valve builts in a check valve, and it is easily possible
to vacuum a refrigerating cycle or check for degree of vac­uum with it.

TOOLS AND EQUIPMENT (R410A)

Gauge Manifold

R410A

R22, R407C

High
pressure
gauge

Compond
gauge

Port size

-0.1 5.3
Mpa

-0.1 3.8
Mpa

1/2UNF
5/16"

-0.1 3.5
Mpa

-0.1 1.7
Mpa

7/16UNF
1/4"

*

1

Charge hose

R410A

R22, R407C

Normal
pressure

Port size

5.1 Mpa

27.4 Mpa

1/2UNF

3.4 Mpa

17.2 Mpa

7/16UNF

*

2

Breaking
pressure

This air conditioner used R410A.
For installation and servicing, it is necessary to prepare the
tools and machines that are different from the previous
refrigerant.

Mark shows the exclusive use for R410A.

The specification of the gauge is different due
to higher pressure.
The size of connection pipe is also different to
prevent mis-use.

The shape of flare is different for
high pressure condition.

06-01

Gas charging

Vacuuming

Piping work

Pressure control and
Circuit switching

Charge hose
Fig.4-2

Outdoor unit

Electronic charging
scale Fig.4-4

Vacuum pump Fig.4-5

Thermistor vacuum gauge Fig.4-15

Vacuum
Valve Fig.4-16

Safety charger Fig.4-13

Control Valve
Fig.4-14

Vacuum holder Fig.4-6

Leakage tester Fig.4-7

Cleaner Fig.4-8

Collector Fig.4-11

Nitrogen Cylinder
Fig.4-12

Torque wrench
Fig.4-10

Flare tool
Fig.4-9

Gauge manifold
Fig.4-1

Fig.4-3

Refrigerant cylinder

Vacuum control

Low pressure

High pressure

side

side

6. REFRIGERANT CAUTION -R410A-

6-2. PRECAUTION FOR INSTALLATION

06-02

Precaution for installation

The pipe must be properly pressure rated for R410A
The pipe must be an air-conditioning refrigerant pipe.

Flare and flare nuts

Diameter 1/4 ” (6.35mm) 3/8” (9.52mm) 1/2” (12.7mm)

Refrigerant

R410A

R22
/R407C

R410A R410A

A 9.1 9.0 13.2 13.0 16.6

16.2

B 13 12 20 15 13 20

C 12 11 16 12.5 19 16

Nut width 17 22 26 24

Always use the flare nut that is packed
with the product.

Do not use existing (for R22) pipes

•

Be sure to use new pipes when replacing
conventional (R22) model with HFC
(R407C, R410A) model.

•

If you use existing pipes, it may cause
resolution of compressor oil by remaining
mineral oil.

3/8”(15.88mm)

R410A

22

29

19.7

25

R22
/R407C

R22
/R407C

R22
/R407C

19.4

23

20

27

3/4”(19.05mm)

R410A

24

36

24

29

R22
/R407C

23.7

29

24

Material

Nominal diameter

(in)

1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8" 1 1/4" 1 1/2"1 3/8"1"

6.35 9.52 12.70 15.88 19.05 22.22 28.58 31.75 38.1034.9225.40

Outside diameter

(mm)

Wall thickness

(mm)

0.8 0.8 0.8 1.0 1.2 1.0 1.0 1.1 1.31.21.0

1) Allowable tensile stress 33 (N/mm );

>
=

2

2) Allowable tensile stress 61 (N/mm ); 3) Design pressure 4.2MPa.

>
=

2

JIS H3300-C1220T-H or equivalent

2)

COPPER

JIS H3300-C1220T-O or equivalent

1)

COPPER

3)

Pipe diameter, recommended material and wall thickness

A

C

B

Be careful not to mix moisture and

contamination into the pipe

Moisture and contamination

in the pipe is a cause of
trouble.

Air purge

Always use a

vacuum pump

to purge air.

Refrigerant charge

Do it always from the liquid phase
side.

Don't charge from the gas phase side.

Compressor oil is changed

Be careful to handle synthetic oil, since it
resolves easily by moisture and

contamination.

Don't mix new synthetic oil and mineral oil.

It may cause trouble.

We developed new synthetic oil, since HFC
refrigerant doesn't dissolve in mineral (for R22)oil.

06-03

6-3. PRECAUTION FOR SERVICING

Feature 1 Refrigerant oil is different from before.

Refrigerant oil for
New Refrigerant

Synthetic oil

Ether

Esther

Different point from
previous one

Previously it was
mineral oil.

Absorbent character
is high.

Contamination occurs
when mixed withe other
kind of oil.

Use the gauge manifold and charge hose
for New Refrigerant(HFC), which shall
be segregated from those of R22.

Attach the stop valve on the vacuum pump
and avoid the oil from reverse frow.

It is necessary to use the vacuum pump
which can obtain the high vacuum condition.

Precaution on Tools

Feature 2 New Refrigerant has Approx 1.6 times higher pressure than previous refrigerant.

R410A

High Pressure

Different point from
previous one

Diameter of Service port
has been changed from
1/4 Flare to 5/16 Flare.

It requires the gauge manifold and charge
hose exclusively for R410A.

It requires the flare tool and torque wrench
that satisfies New JIS standard.

Precaution on Tools

R410A R22

1.6 times of R22.

JIS standard of flare
process It became lager

To keep thethickness of
copper tube.
(1/4,3/3=more than 0.8mm)

Previous flare tool + flare adapter can be used as well.

06-04

6-4. NEW REFRIGERANT R410A

What is HFC ?

Phase-out schedule of HCFC

according to Montreal protocol

1996 20102000 2004 2015 2020 2030

60

40

20

100

(Year)

(%)

80

(HCFC consumption of 1989) +

(CFC consumption of 1989) x 2.8%

65%

35%

10%

0.5%

started control

only service use

total abolition

100% =

0

*

06-05

Ozone Layer depleting mechanism

CFC

CFCl

2

Cl Ozone

(O3)

O

2

ClO

Cl

sunbeam

What is CFC and HCFC?

CFC : Chloro-Fluoro-Carbon

High ODP( ozone depletion potential ) chemical compound, including chlorine. (ODP:0.6-1.0)
For example : R12 (for refrigerator and car air-conditioner)

Low ODP chemical compound, including chlorine and hydrogen. (ODP:0.02-01)

HCFC : Hydro-Chloro-Fluoro-Carbon

For example : R22 (for air-conditioner)

R134a (for Car air conditioner)

HFC3 : Hydro-Fluoro-Carbon

R407C (for air conditioner)

Refrigerant characteristics

R22

Composition

(wt%)

R22

(100)

Boiling Point

- 40.8

Behavior ---

Pressure at 54.5

C

(kPa)

2,151

Temperature Glide

(deg)

0

ODP 0.055

R407C

R32/R125/R134a

(23/25/52)

- 43.6

zeotrope

2,262

5.4

0

R410A

R32/R125

(50/50)

- 51.4

near azeotrope

3,406

0.11

0

06-06

Summary of R407C and R410A characteristics

Pressure (Mpa) Temp ( C)

2.20 37.9

2.25 38.7

2.30 39.6

2.35 40.5

2.40 41.3

2.45 42.1

2.55 43.8

2.60 44.6

2.65 45.3

2.70 46.1

2.75 46.8

2.80 47.6

2.85 48.3

2.90 49.0

2.95 49.8

3.00 50.5

3.05 51.2

3.10 51.9

3.15 52.6

3.20 53.2

3.25 53.9

3.30 54.6

3.35 55.3

3.40 55.9

3.45 56.5

3.50 57.1

2.55 57.8

3.60 58.4

3.65 59.0

3.70 59.6

3.75 60.2

3.80 60.8

3.85 61.4

3.90 52.0

3.95 62.5

4.00 63.1

4.05 63.6

4.10 64.2

4.15 64.8

Temp ( C) Pressure (Mpa)

39 2.27
40 2.32
41 2.38
42 2.44
44 2.57
45 2.63
46 2.69
47 2.76
48 2.83
49 2.90
51 3.04
52 3.11
53 3.18
54 3.26
56 3.41
57 3.49
58 3.57
59 3.65
61 3.82
62 3.90
63 3.99
64 4.08

Desighed pressure of R410A refrigerant

< Pressure Temp >

Relation between R410A condensing temperature and saturated pressure.

< Temp Pressure >

Advantage

Disadvantage

Suitable for

R410A

higher system

performance

Near-Azeotropic

refrigerant

1.6 times higher

(difficult to design against

pressure resistance)

Small Air-Conditioners

pressure than R22

R407C

similar pressure as R22

(possible to design

large equipment)

Zeotropic refrigerant

(handle with care)

Large Air-Conditioners

*

05-07

OIL

• Use new synthetic oils such as ester because HFC series refrigerant has less solubility with mineral oils
conventionally used for R22.

• As these new synthetic oils are easily influenced by moisture and dusts, they must be treated more care-

fully than the conventional lubricating oils.

CAUTION

For installation/servicing, take more precautions than the case of conventional refrigerants to avoid moisture
and dusts entering the refrigerant circuit. Also, for storing parts, more precautions must be taken.

2, 3-WAY VALVE

• Review material O-ring, valve core seal for securing suitability with oil.

CAUTION

Check if the valve is suitable for the refrigerant (model) when replacing.

CAUTION

Check if the compressor is suitable for the refrigerant (model) when replacing. Complete welding within 15minutes
after opening the cap when replacing.

COMPRESSOR

• Use better grade of material for sliding parts for securing good lubrication of sliding part as HFC
refrigerant does not contain chloride.

• Review insulating materials

• Increase pressure resistance strength

CAUTION

During storage, due care must be taken so that foreign matters such as dust and water do not enter.

HEAT EXCHANGER

• Review the water,contaminants controlling level

• Use thinner tube to increase pressure Increase capacity for resistance strength (only outdoor unit)
improving performance

CAUTION

Check if the valve is suitable for the refrigerant (model) when replacing.

4-WAY VALVE

• Review materials

6-5. DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS

06-08

Check Valve

Other Piping

CAUTION

Check if the valve is suitable for the refrigerant (model) when replacing.

• Review materials
Change shape of pipe ends to increase pressure resistance strength.

•

•

Review the water, contaminants controlling level.
Review thickness of pipes.

•

CAUTION

During storage, due care must be taken so that foreign matters such as dust and water do not enter.

7 . TROUBLE SHOOTING

R410A

CASSETTE type

INVERTER

7. TROUBLESHOOTING

07-01

7-1 ERROR DISPLAY

Run [Self-Diagnosis] if [E:EE] flashes on the clock display of the remote controller.

When the error indication "E:EE" is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed servise personnel.

Error code

Error contents

Trouble
shooting

Communication error (Serial reverse transfer error)

Room temperature sensor open

Room temperature sensor short-circuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor short-circuited

Outdoor heat exchanger temperature sensor error

Water drain abnormal

Outdoor temperature sensor error

Outdoor discharge pipe temperature sensor error

Indoor EEPROM abnormal (Model No.)

Indoor fan motor abnormal

Outdoor unit fan motor error

Outdoor communication signal error (Forward transfer signal error)

Ex. Self-diagnosis

Error code

SUMOTUWETH FR

SA

DAY OFF

DELETE SET

ENERGY

SAVE

SET BACK

DAY

CLOCK ADJUST

Display

DAY OFF

DELETE SET

ENERGY

SAVE

SET BACK

DAY

CLOCK ADJUST

SET

1. Stop the air conditioner operation.

2. Press the SET TEMPERATURE buttons and simultaneously for 5 seconds or more
to start the self-diagnosis.

3. Press the SET TEMPERATURE buttons and simultaneously for 5 seconds or more
or there is no key input for 20 seconds to stop the self-diagnosis.

SUMOTUWETH FR

SA

7-1-1 WIRED REMOTE CONTROLLER DISPLAY

THERMO
SENSOR

Pressure switch error

Active filter module (AFM) error

CT error

Communication error (indoor unit remote control)

IPM error

Compressor rotor location cannot detect (permanent stop)

Compressor temperature sensor error

1. SELF - DIAGNOSIS

1
2

5
6
7
8

9
10
11
12
13
14
15

16
17
18

3

4

07-02

1. Stop the air conditioner operation.

2. Press the SET TEMPERATURE buttons , and the START/STOP button simultaneously
for 5 seconds or more to start the self-diagnosis.

5. Press the SET TEMPERATURE buttons , and START/STOP button simultaneously
for 5 seconds or more or there is no key input for 20 seconds to stop the display.

DAY

2. ERROR CODE HISTORY DISPLAY

Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller.

4. Press the SET TEMPERATURE button to select the error history number.

SUMOTUWETH FR

SA

Error code

Error history number

Lower

3. Press the START/STOP button.

0 1 2 3 4 5 6 7

F E d c b A 9 8





SUMOTUWETH FR

SA

DAY

DAY

Raise

07-03

Error contents

LED Flashing
Pattern

Display
priority

Trouble
shooting

Outdoor communication signal error
(Forward transfer signal error)

1 time flash

2 times blink

3 times blink

4 times blink

7 times blink

8 times blink

9 times blink

12 times blink

13 times blink

14 times blink

15 times blink

16 times blink

1

2
3
4
5
6
7
8

9
10

11

12

Outdoor heat exchanger temperature sensor error

Outdoor temperature sensor error

Outdoor discharge pipe temperature sensor error

Outdoor unit fan motor error (upper fan)

Outdoor unit fan motor error (lower fan)

Pressure switch abnormal

IPM error

Compressor rotor location cannot detect

Compressor Start-up error

Compressor temperature sensor error

Heat sink temperature sensor error

Operation LED Blinking Pattern

Normal operation Continuously lighting

5sec ON / 1sec OFF

Protected operation

1sec ON / 1sec OFF

Pump down operation

0.5sec 0.5sec 2sec

ON

OFF

1. ERROR DISPLAY

3. NORMAL OPERATION DISPLAY

2. ERROR DISPLAY METHOD

Outdoor LED Blink (1 to 16 times) 0.5sec ON / 0.5sec OFF blinking

7-1-2 OUTDOOR UNIT DISPLAY

11

8

5

7
12
19
13
14
17
20

18

Error contents

LED Flashing
Pattern

Display
priority

Trouble
shooting

Outdoor communication signal error
(Forward transfer signal error)

1 time flash

2 times blink

3 times blink

4 times blink

7 times blink

8 times blink

10 times blink

11 times blink

12 times blink

13 times blink

1

2
3
4
5
6
7
8

9
10

Outdoor heat exchanger temperature sensor error

Outdoor temperature sensor error

Outdoor discharge pipe temperature sensor error

Pressure switch abnormal

IPM error

Compressor rotor location cannot detect

Compressor Start-up error

Compressor temperature sensor error

11

8

5

7
12

13
14

CT error

15
17
20

(Only for AU*24LUAR (AO*24LMAKL))

Trouble shooting 1

INDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 2 : Check Remote Control and Controller PCB

Check Point 1 : Check the connection of terminal

OKOK

Indicate or Display:

Indoor Unit : No LED

ERROR CODE : E : 00

Outdoor Unit : No indication

Communication Error
(Indoor unit Remote control)

Indoor unit controller PCB circuit
Wired Remote Control

1. Terminal connection abnormal 2. Wired Remote Control failure 3. Controller PCB failure

After turning off the power, check & correct the followings.

Check the connection of terminal between remote control and Indoor unit,
and check if there is a disconnection of the cable.

Upon correcting the removed connector or mis-wiring, reset the power.

Check Voltage at CN17 of Controller PCB. (Power supply to Remote Control)

>> If it is DC12V, Remote Control is failure. (Controller PCB is normal) >> Replace Remote Control
>> If it is DC 0V, Controller PCB is failure. (Check Remote Control once again) >> Replace Controller PCB

When the indoor unit cannot receive the signal from Wired Remote
more than 10seconds after power ON, or the indoor unit cannot receive
the signal more than 1minute during normal operation.

07-04

7-2 TROUBLE SHOOTING WITH ERROR CODE

Trouble shooting 2

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

OK

Indicate or Display:Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 01

YESYES

NO

N

L

3

2

1

WHITE

BLACK

RED

WHITE

BLACK

+

-

OK

Communication Error
(Serial Reverse Transfer Error)

Outdoor Unit Main PCB Circuit
Active Filter Module

1. Connection failure 2. External cause 3. Main PCB failure 4. Active Filter Module failure

Check Point 1-1 : Reset the power and operate

Does Error indication show again?

Check Point 1-2:

Check external cause such as noise

Check the complete insulation of the grounding.

Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

Check Point 2 : Check Connection

Check any loose or removed connection line of
Indoor unit and Outdoor unit.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.

Check connection between Outdoor Unit Main PCB
and Filter PCB.
(If there is loose connector or open cable)

Check Point 3 : Check the voltage of power supply

Check the voltage of power supply

>> Check if AC198 - 264V appears at Outdoor Unit Terminal L - N.

Check Point 4 : Check Serial Signal (Reverse Transfer Signal)

Check Serial Signal (Reverse Transfer Signal)

>> Check if Indicated value swings between AC70V and AC130V at Outdoor Unit Terminal 1 - 3.

>> If it is abnormal, Check Active Filter Module. (PARTS INFORMATION 3)

When the indoor unit cannot receive the serial signal from Outdoor unit
more than 10seconds.

>>If Active Filter Module is abnormal, replace it.

>>If Active Filter Module is normal, replace Main PCB.

07-05

Trouble shooting 3

INDOOR UNIT

INDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 02 / 03

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 : Check Point 2 : Remove connector and check Thermistor resistance value

Check Point 1 : Check connection of Connector

Check Point 3 : Check Point 3 : Check voltage of Controller PCB (DC5.0V)

6.51

35°C

8.04

30°C

10.012.515.820.225.933.6Resistance Value (k )

25°C20°C15°C10°C5°C0°C

Temperature

OK

OK

3.594.355.30Resistance Value (k )

50°C45°C40°C

Temperature

THERMISTOR
(PIPE TEMP.)

THERMISTOR
(ROOM TEMP.)

GRAY

GRAY

BLACK

BLACK

CN7 CN8

1 2 1 2
1 2 1 2

Room Temperature Sensor Error

Indoor Unit Controller PCB Circuit
Room Temperature Thermistor

When Room Temperature Thermistor open or short-circuit is
detected at power ON.

1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Controller PCB.

07-06

Trouble shooting 4

INDOOR UNIT

INDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 04 / 05

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

31.7

35°C

39.6

30°C

49.762.980.3103134176Resistance Value (k )

25°C20°C15°C10°C5°C0°C

Temperature

OKOK

OK

17.120.825.6Resistance Value (k )

50°C45°C40°C

Temperature

THERMISTOR
(PIPE TEMP.)

THERMISTOR
(ROOM TEMP.)

GRAY

GRAY

BLACK

BLACK

CN7 CN8

1 2 1 2
1 2 1 2

Indoor Heat Exchanger Temperature
Sensor Error

Indoor Unit Controller PCB Circuit
Heat Exchanger Temperature Thermistor

When Heat Exchanger Temperature Thermistor open or short-circuit is
detected at power ON.

1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Controller PCB (DC5.0V)

Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Controller PCB.

07-07

Trouble shooting 5
OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 3 times blink

ERROR CODE : E : 06

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

Check Point 3 :

4.89

25°C

6.10

20°C

7.679.7312.416.120.927.5Resistance Value (k )

15°C10°C5°C0°C-5°C-10°C

Temperature

OKOK

OKOK

DC

3.95

30°C

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

THERMISTOR

(HEAT SINK)

BROWN

BLACK

BLACK

BLUE

BROWN

CN21 CN22 CN23 CN26 CN25

1 2 1 2 1 2 1 2 1 2

Outdoor Heat Exchanger Temperature
Sensor Error

Outdoor Unit Main PCB Circuit
Heat Exchanger Temperature Thermistor

When Heat Exchanger Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.

1. Connector connection failure 2.Thermistor failure 3. Main PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Main PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Main PCB.

07-08

Check Point 2 : Check Point 2 : Check Connector (CN15) / Wire

Check Point 1 : Check Float Switch

Check Point 3 : Replace Controller PCB

ONON OFFOFF

OKOK

OKOK

Trouble shooting 6

INDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 09

Detective Actuators:

Detective details:

Forecast of Cause :

Water Drain Abnormal

Indoor Unit Controller PCB Circuit
Float Switch

When Float Switch is ON for more than 3 minutes.

1. Float Switch failure 2. Shorted connector/ wire 3. Controller PCB failure

Check operation of float switch. (any blocking by dust, etc.)

Remove Float switch and check ON/OFF switching operation
by using a meter.

>>If Float switch is detective, replace it.

Check loose contact of CN15 /shorted wire (pinched wire).

>>Replace Float switch if the wire is abnormal

If Check Point 1 & 2 do not improve the symptom, change Controller PCB.

07-09

Trouble shooting 7

INDOOR UNIT

OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 4 times blink
ERROR CODE : E : 0A

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

Check Point 3 :

OKOK

OKOK

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

THERMISTOR

(HEAT SINK)

BROWN

BLACK

BLACK

BLUE

BROWN

CN21 CN22 CN23 CN26 CN25

1 2 1 2 1 2 1 2 1 2

30°C

12.620.726.935.246.662.3115Resistance Value (k )

20°C

16.1

15°C10°C5°C0°C-20°C -10°C -5°C

Temperature

3.45 2.36 1.65Resistance Value (k )

50°C 60°C 70°C

5.187.97

40°C

Temperature

Outdoor Temperature Sensor Error

Outdoor Unit Main PCB Circuit
Outdoor Temperature Thermistor

When Outdoor Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.

1. Connector connection failure 2.Thermistor failure 3. Main PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Main PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Main PCB.

07-10

Trouble shooting 8

INDOOR UNIT

OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 2 times blink

ERROR CODE : E : 0C

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

Check Point 3 :

18.126.9

20°C

41.164.581.8105135176Resistance Value (k )

15°C10°C5°C0°C

Temperature

OKOK

OKOK

12.5

30°C

50°C40°C

60°C

0.51

180°C

0.77

160°C

1.211.983.434.616.318.78Resistance Value (k )

140°C120°C100°C

90°C80°C70°C

Temperature

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

THERMISTOR

(HEAT SINK)

BROWN

BLACK

BLACK

BLUE

BROWN

CN21 CN22 CN23 CN26 CN25

1 2 1 2 1 2 1 2 1 2

Outdoor Discharge Pipe Temperature
Sensor Error

Outdoor Unit Main PCB Circuit
Discharge Pipe Temperature Thermistor

When Discharge Pipe Temperature Thermistor open or short-circuit
is detected at power ON or while running the compressor.

1. Connector connection failure 2.Thermistor failure 3. Main PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Main PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Main PCB.

07-11

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 3 : Replace Controller PCB

Check Point 2 :
Check Indoor Unit electric components

YESYES

NO

Trouble shooting 9
INDOOR UNIT Error Method:

Indicate or Display:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 11

Indoor EEPROM abnormal
(Model No.)

Indoor Unit Controller PCB circuit

1. External cause 2. Defective connection of electric components 3. Controller PCB failure

Check Point 1-1 : Reset Power Supply and operate

Does Error indication show again?

Check Point 1-2 :
Check external cause at Indoor and Outdoor
(Voltage drop or Noise)

Instant drop : Check if there is a large load electric apparatus
in the same circuit.

Momentary power failure : Check if there is a defective contact
or leak current in the power supply
circuit.

Noise : Check if there is any equipment causing harmonic
wave near electric line.(Neon bulb or electric
equipment that may cause harmonic wave)
Check the complete insulation of grounding.

Note : EEPROM

EEPROM(Electronically Erasable and
Programmable Read Only Memory) is a non­volatile memory which keeps memorized
information even if power is turned off. It can
change the contents electronically.
To change the contents, it uses higher
voltage than normal, and it can not change a
partial contents. (Rewriting shall be done
upon erasing the all contents.)
There is a limit in a number of rewriting.

Change Controller PCB.

Check all connectors.
(loose connector or incorrect wiring)

Check any shortage or corrosion on PCB.

When the model information being read from EEPROM has
an apparent error.

07-12

Trouble shooting 10
INDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 2 : Check Motor winding

Check Point 1 : Check rotation of Fan

Check Point 3 : Check ambient temp. around motor

Check Point 4 : Check Motor Capacitor

OK

OK

OK

OK

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication

ERROR CODE : E : 12

Indoor Fan Motor abnormal

Indoor Unit Controller PCB Circuit
Indoor Fan Motor

1. Fan rotation failure 2. Fan motor winding open 3. Motor protection by surrounding temperature rise

4. Capacitor failure 5. Control PCB failure

Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)

>>If Fan or Bearing is abnormal, replace it.

Check Indoor Fan motor. (PARTS INFORMATION 5)

>>If Fan motor is abnormal, replace it.

Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)

>>Upon the temperature coming down, restart operation.

Check continuity of motor capacitor

>>If it is shorted, replace the capacitor.

When the condition that actual frequency of Indoor Fan is
below 1/3 of target frequency is continued more than 56 seconds.

07-13

Check Point 5 : Replace Controller PCB

If Check Point 1- 4 do not improve the symptom, replace Controller PCB.

Trouble shooting 11

INDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 2 : Check Connection

OK

Indicate or Display:Indicate or Display:

Indoor Unit : No LED

Outdoor Unit : LED 1 time blink

ERROR CODE : E : 13

Check Point 3 : Check the voltage of power supply

Check Point 1-1 : Reset the power

YESYES

NO

Check Point 1-2:

N

L

3

2

1

WHITE

BLACK

RED

WHITE

BLACK

+

-

OK

Check Point 4 : Check Serial Signal (Forward Transfer Signal)

Check Serial Signal (Forward Transfer Signal)

Outdoor Communication Signal Error
(Forward Transfer Signal Error)

Indoor Unit Controller PCB Circuit

1. Connection failure 2. External cause 3. Controller PCB failure

Does Error indication reappear?

Check external cause such as noise

Check the complete insulation of the grounding.

Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

Check the voltage of power supply

>> Check if AC198 - 264V appears at Outdoor Unit Terminal L - N.

>> Check if Indicated value swings between AC70V and AC130V at Outdoor Unit Terminal 2 - 3.

Check any loose or removed connection line of
Indoor unit and Outdoor unit.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.

Check connection between Indoor Unit Controller PCB
and Filter PCB.
(If there is loose connector or open cable)

>> If it is abnormal, Controller PCB is failure. >> Replace Controller PCB

07-14

When the outdoor unit cannot receive the serial signal from Indoor unit
more than 10seconds.

Trouble shooting 12
OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 7 times blink

ERROR CODE : E : 15

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

Check Point 3 :

18.126.9

20°C

41.164.581.8105135176Resistance Value (k )

15°C10°C5°C0°C

Temperature

OKOK

OKOK

12.5

30°C

50°C40°C

60°C

0.51

180°C

0.77

160°C

1.211.983.434.616.318.78Resistance Value (k )

140°C120°C100°C

90°C80°C70°C

Temperature

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

THERMISTOR

(HEAT SINK)

BROWN

BLACK

BLACK

BLUE

BROWN

CN21 CN22 CN23 CN26 CN25

1 2 1 2 1 2 1 2 1 2

Compressor Temperature Sensor Error

Outdoor Unit Main PCB Circuit
Compressor Temperature Thermistor

When Compressor Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.

1. Connector connection failure 2. Thermistor failure 3. Main PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Rough value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Main PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Main PCB.

07-15

Trouble shooting 13

INDOOR UNIT

OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 9 times blink/ 8 times blink(AU*24LMAKL)

ERROR CODE : E : 16

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 3 : Check Point 2 : Check voltage of Main PCB (DC5.0V)

HIGH PRESSURE SW

BLACK

BLACK

RED
RED

CN37

1
2

1
2
3

4WV

OK

Check Point 1 : Reset Power Supply and operate

Check Point 3 : Check Pressure Switch

YESYES

NONO

Pressure Switch Error

Outdoor Unit Main PCB Circuit
Pressure Switch

1. Connector connection failure 2. Pressure Switch failure 3. Main PCB failure

When pressure switch open is detected in 10 seconds
after the power is turned on.

Does abnormal LED indication show again?

Make sure circuit diagram of outdoor unit and check terminal voltage
at Pressure Switch. (DC5.0V)

If the voltage does not appear, replace Main PCB.

Check if connector is loose or cable is open.

>> If no abnormal connection is found,
replace Pressure Switch.

After replacing Pressure Switch, check operating
condition and pressure in operation.

07-16

Trouble shooting 14

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 3 : Check Compressor

OK

OK

(PARTS INFORMATION 2)

Indicate or Display:

Indoor Unit : No LED

Outdoor Unit : LED 12 times blink/ 10 times blink(AU*24LMAKL)

ERROR CODE : E : 17

Check Point 4 : Replace Main PCB

OKOK

Check Point 1 : Check connections of Outdoor Unit Electrical Components

IPM error (Permanent Stop)

Outdoor Unit Main PCB Circuit
Compressor

1. Defective connection of electric components 2. Outdoor Fan Operation failure

3. Outdoor Heat Exchanger clogged 4. Compressor failure 5. Main PCB failure

Check if connector is removed.

Check if the terminal connection is loose.

Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Check Outdoor Fan, Heat Exchanger

Is there anything obstructing the air distribution circuit?
Is there any clogging of Outdoor Heat Exchanger?
Is the Fan rotating by hand when operation is off ?

Check Outdoor Fan Motor. (Refer to Trouble shooting 18)

>> If the Fan Motor is locked, replace it.

>> If the Fan Motor is failure, replace it.

Check Compressor.

If Check Point 1, 2, 3 do not improve the symptom, change Main PCB.

When more than normal operating current to IPM in Main PCB flows,
the compressor stops.
After the compressor restarts, if the same operation is repeated within 40sec,
the compressor stops again.
If and repeats 5 times, the compressor stops permanently.

07-17

Trouble shooting 15

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 3 : Check Filter PCB and Main PCB

Check Point 4 : Replace Main PCB

YES

NO

OK

Indicate or Display:

Indoor Unit : No LED

Outdoor Unit : No indication/ 11 times blink(AU*24LMAKL)

ERROR CODE : E : 18

CT error

Outdoor Unit Main PCB Circuit
Outdoor Unit Filter PCB Circuit
(Input current sensor unit)

Check Point 2 :
Check connections of Outdoor Unit Electrical Components

Check if connector is removed.

Check if the terminal connection is loose.

Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring,
reset the power.

Check Point 1-2 :
Check external cause at Indoor and Outdoor
(Voltage drop or Noise)

1. Defective connection of electric components 2. External cause 3. Filter PCB failure 4. Main PCB failure

Instant drop : Check if there is a large load electric
apparatus in the same circuit.

Momentary power failure : Check if there is a defective
contact or leak current in the
power supply circuit.

Noise : Check if there is any equipment causing harmonic
wave near electric line.(Neon bulb or electric
equipment that may cause harmonic wave)
Check the complete insulation of grounding.

Check Point 1-1 : Reset Power Supply and operate

Does Error indication show again?

When Input Current Sensor has detected lower than 0.5A
while Inverter Compressor is operating at higher than 56Hz,
after 1minute upon starting the Compressor.
(Except during the defrost operation)

07-18

Check DC voltage of CN1 (between 2 (Brown) and 3 (Red)) on Filter PCB.

>> After 40seconds upon starting the Compressor,
If it is higher than 0.2V, Main PCB is failure. (Filter PCB is normal) >> Replace Main PCB
>> If it is lower than 0.2V, Filter PCB is failure. >> Replace Filter PCB

If it does not improve the symptom, change Main PCB.

AU*24LUAR

If Check Point 1, 2 do not improve the symptom, change Main PCB.

Trouble shooting 16

INDOOR UNIT

OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : No indication
ERROR CODE : E : 19

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 3 : Check Active Filter Module

OKOK

OKOK

OKOK

Active Filter Module (AFM) error

Outdoor Unit Main PCB Circuit
Active Filter Module

1. External cause 2. Connector connection failure 3. Active Filter Module failure ４. Main PCB failure

Check Point 2 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Active Filter Module. (PARTS INFORMATION 3)
>>If Active Filter Module is abnormal, replace it.

Check Point 4 : Replace Main PCB

If Check Point 1, 2 do not improve the symptom, change Main PCB.

Check Point 1 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)

Instant drop : Check if there is a large load electric apparatus in the same circuit.

Momentary power failure : Check if there is a defective contact or leak current
in the power supply circuit.

Noise : Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.

07-19

When inverter input DC voltage is higher than 467V or
lower than 237V.
When a momentary power cut off occurred on low voltage.

Trouble shooting 17

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 1 : Check connection of around the Compressor components

OKOK

Indicate or Display:Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 13 times blink/ 12 times blink(AU*24LMAKL)

ERROR CODE : E : 1A

Check Point 2 : Replace Main PCB

Outdoor Unit Main PCB Circuit

Compressor rotor location cannot detect
(Permanent Stop)

1. Defective connection of electric components 2. Main PCB failure

If Check Point 1 do not improve the symptom, change Main PCB.

Check if connector is removed.

Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

(Refer to PARTS INFORMATION 2)

For Compressor Terminal, Main PCB

While running the compressor, if the detected rotor location is out of
phase with actual rotor location more than 90 degrees,
the compressor stops.
After the compressor restarts, if the same operation is repeated
within 40sec, the compressor stops again.
If and repeats 5 times, the compressor stops permanently.

07-20

Trouble shooting 18

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause:

Check Point 2 : Check ambient temp. around motor

OK

OK

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 15 (Fan motor 1)/ 16(Fan motor 2) times blink

ERROR CODE : E : 1b

Outdoor Unit Fan Motor Error

Outdoor Unit Main PCB Circuit
Outdoor Fan Motor

1. Fan rotation failure 2. Motor protection by surrounding temperature rise 3. Main PCB failure

Check Point 1 : Check rotation of Fan

Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)

>>If Fan or Bearing is abnormal, replace it.

Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)

>>Upon the temperature coming down, restart operation.

Check Point 3 : Check Output Voltage of Main PCB

Check outdoor unit circuit diagram and the voltage. (Measure at Main PCB side connector)

Check Outdoor Fan motor. (PARTS INFORMATION 6)

If the voltage is not correct, replace Main PCB.

When outdoor fan rotation speed is less than 100rpm in 20 seconds
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60sec is repeated
3 times in a row, compressor and fan motor stops.
If and repeats 5 times in a row, compressor and fan motor stops
permanently.

AU*30/ 36LUAS AU*45/ 54LUAS

Read wire DC voltage

Red - Black

White - Black

300 400V

15 1.5V

〜

07-21

CN800

CN801

1
2
3
4
5
6
7

1
2
3
4
5
6
7

BLACK
WHITE
YELLOW
BROWN

RED

BLACK
WHITE
YELLOW
BROWN

RED

FM

FM

FAN MOTOR 1

FAN MOTOR 2

CN800

1
2
3
4
5
6
7

BLACK
WHITE
YELLOW
BROWN

RED

FM

FAN MOTOR 1

Check Point 4 : Check Motor winding

AU*24LUAR

If Fan motor is abnormal, replace it.

Trouble shooting 19

OUTDOOR UNIT Error Method:

Indicate or Display:

Indoor Unit : No LED
Outdoor Unit : LED 8 times blink
ERROR CODE : No indication

Detective Actuators:

Detective details:

Forecast of Cause :

Check Point 2 :

Check Point 3 :

OKOK

OKOK

THERMISTOR

(DISCHARGE)

THERMISTOR

(PIPE)

THERMISTOR

(OUTDOOR)

THERMISTOR

(COMPRESSOR)

THERMISTOR

(HEAT SINK)

BROWN

BLACK

BLACK

BLUE

BROWN

CN21 CN22 CN23 CN26 CN25

1 2 1 2 1 2 1 2 1 2

30°C

6.109.7312.416.1Resistance Value (k )

20°C

7.67

15°C10°C5°C0°C

Temperature

1.79

1.25 0.89Resistance Value (k )

50°C

60°C 70°C

0.65

80°C

0.48

90°C

0.36

100°C

0.27

110°C

0.21

120°C

2.623.95

40°C

Temperature

Heat Sink Temperature Sensor Error

Outdoor Unit Main PCB Circuit
Heat Sink Temperature Thermistor

When Heat Sink Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.

1. Connector connection failure 2.Thermistor failure 3. Main PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check Thermistor resistance value

Thermistor Characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Main PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)

If the voltage does not appear, replace Main PCB.

07-22

Trouble shooting 20

OUTDOOR UNIT Error Method:

Detective Actuators:

Detective details:

Forecast of Cause :

Indicate or Display:

Indoor Unit : No LED

Outdoor Unit : LED 14 times blink/ 13 times blink(AU*24LMAKL)

ERROR CODE : No indication

Compressor Start-up error
(Permanent Stop)

On start-up the compressor, when detected rotor position is out of phase
with actual rotor position more than 90 degrees,the compressor stops.
After the compressor restarts, if the same operation is repeated
within 40sec, the compressor stops again.
If and repeats 5 times, the compressor stops permanently.

Outdoor Unit Main PCB Circuit

1. Defective connection of electric components 2. Main PCB failure

Check Point 1 : Check connection of around the Compressor components

OKOK

Check Point 2 : Replace Main PCB

If Check Point 1 do not improve the symptom, replace Main PCB.

Check if connector is removed.
Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

(Refer to PARTS INFORMATION 2)

For Compressor Terminal, Main PCB

07-23

Trouble shooting 21

Forecast of Cause:

YESYES

NO

OKOK

OKOK

OKOK

Indoor Unit - No Power

1. Power Supply failure 2. External cause

3. Electrical Components defective

Check Point 1 : Check Installation Condition

Isn’t the breaker down?
Check loose or removed connection cable.

>>If abnormal condition is found, correct it by referring
to Installation Manual or Data & Technical Manual.

Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)

Instant drop ----- Check if there is a large load electric apparatus in the same circuit.

Momentary power failure ----- Check if there is a defective contact or leak current in
the power supply circuit.

Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.

Check Point 3 : Check Electrical Components

Check Voltage of power supply.

>> Check AC198 - 264V appears at Indoor Unit Terminal 1 - 2 (Power Supply).

Check Fuse (F101) in Filter PCB.

>> If Fuse is open, check if the wiring between Terminal and Filter PCB
is loose, and replace Fuse.

Check Varistor (VA101, VA102) in Filter PCB.

>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power supply and replace Varistor.

If the symptom does not change by above Check3, replace Filter PCB.

07-24

7-3 TROUBLE SHOOTING WITH NO ERROR CODE

Trouble shooting 22

Forecast of Cause:

Check Point 3 : Check Electrical Components

OKOK

OKOK

YESYES

OK

NO

Check Point 1 : Check Installation Condition

Outdoor Unit - No Power

1. Power Supply failure 2. External cause

3. Electrical Components defective

Isn’t the breaker down?
Check loose or removed connection cable.

>>If abnormal condition is found, correct it by referring
to Installation Manual or Data & Technical Manual.

Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)

Instant drop ----- Check if there is a large load electric apparatus in the same circuit.

Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.

Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.

Check the voltage of power supply.

>> Check if AC198 - 264V appears at Outdoor Unit Terminal L - N.

YESYES

Check Fuse (F2, F4) in Main PCB.

>> If Fuse is open, check loose terminal or removed connector (CN1) , and replace Fuse.

Check Varistor in Main PCB (VA103).

>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power supply and replace Varistor.
Upon checking the normal power supply, replace Varistor.

If the symptom does not change by above Check 3, replace Main PCB.

Check Active Filter Module. (PARTS INFORMATION 3)
>>If Active Filter Module is abnormal, replace it.

07-25

Trouble shooting 23

Forecast of Cause:

Check Point 2 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)

Check Point 1 : Check indoor and outdoor installation condition

Check Point 3 : Check Electrical Components at Indoor and Outdoor

OK

OK

OKOK

No Operation (Power is ON)

1. Setting/ Connection failure 2. External cause

3. Electrical Component defective

Indoor Unit - Check incorrect wiring between Indoor Unit - Remote Control, or terminals between Indoor Units.
Or, check if there is an open cable connection.

Are these Indoor Unit, Outdoor Unit, and Remote Control suitable model numbers to connect?

>> If there is some abnormal condition, correct it by referring to Installation manual and
Data & Technical Manual.

Turn off Power and check/ correct followings.

Is there loose or removed communication line of Indoor Unit and Outdoor Unit?

Instant drop ----- Check if there is a large load electric apparatus in the same circuit.

Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.

Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.

Check Voltage at CN17 of Controller PCB. (Power supply to Remote Control)

>> If it is DC12V, Remote Control is failure. (Controller PCB is normal) >> Replace Remote Control
>> If it is DC 0V, Controller PCB is failure. (Check Remote Control once again) >> Replace Controller PCB

>> If the symptom does not change by above Check 1, 2, 3, replace Main PCB of Outdoor unit.

07-26

Attention

Trouble shooting 24

Forecast of Cause:

Check Point 2 : Check Outdoor Unit Operation

Check Point 1 : Check Indoor Unit

Check Point 3 : Check Site Condition

Check Point 5 : Check Refrigeration Cycle

Check Point 4 :
Check Indoor/ Outdoor Installation Condition

Pipe (In) Pipe (Out)

Pipe (In) Pipe (Out)

OKOK

OKOK

OKOK

OKOK

MPa MPa

No Cooling / No Heating

1. Indoor Unit error 2. Outdoor Unit error

3. Effect by Surrounding environment

4. Connection Pipe / Connection Wire failure 5. Refrigeration cycle failure

Does Indoor Unit FAN run on HIGH FAN?

Is Air Filter dirty?
Is Heat Exchanger clogged?

Check if Energy save function is operated.

Check if Outdoor Unit is operating
(If not, refer to Trouble shooting 23)

Check any objects that obstruct the air flow route.

Check clogged Heat Exchanger.

Is the Valve open?

Is capacity of Indoor Unit fitted to Room size?

Any windows open? Or direct sunlight ?

Check connection pipe
(specified pipe length & Pipe diameter?)

Check any loose or removed communication line.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data & Technical
Manual.

Check if Strainer is clogged (Refer to the figure at right).

Measure Gas Pressure and if there is a leakage, correct it.

>> When recharging the refrigerant, make sure to perform
vacuuming, and recharge the specified amount.

Check EEV (PARTS INFORMATION 4)

Check Compressor (PARTS INFORMATION 1,2)

Strainer normally does not have temperature difference
between inlet and outlet as shown in , but if there is a
difference like shown in , there is a possibility of inside
clogged. In this case, replace Strainer.

07-27

Trouble shooting 25

Forecast of Cause :

Trouble shooting 26

Forecast of Cause:

OK

OK

OK

OK

OKOK

OKOK

OKOK

OKOK

MPa MPa

Abnormal Noise

1. Abnormal installation (Indoor/ Outdoor) 2. Fan failure(Indoor/ Outdoor)

3. Compressor failure (Outdoor)

Diagnosis method when Abnormal Noise is occurred

Abnormal noise is coming from Indoor Unit.
(Check and correct followings)

Abnormal noise is coming from Outdoor Unit.
(Check and correct followings)

Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?

Is Main Unit installed in stable condition?
Is the installation of Air suction grille and
front panel normal?

Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?

Is Main Unit installed in stable condition?
Is Fan Guard installed normally?

Check if vibration noise by loose bolt or contact noise
of piping is happening.

Is Compressor locked?

>> Check Compressor (PARTS INFORMATION 1,2)

Water Leaking

1. Erroneous installation 2. Drain hose failure 3. Float Switch failure

Diagnosis method when water is spitting out.

Is the filter clogged?

Check Gas Pressure and correct it
if there was a gas leak.

Diagnosis method when water leak occurs

Is Drain Hose connection loose?
Is there a trap in Drain Hose?

Is Drain Hose clogged?

Is Main Unit installed in stable condition?
Is Main Unit broken or deformed at the time of
transportation or maintenance?

Is Float Switch defective?

>> Check Float Switch (Refer to Trouble Shooting 6)

Is Fan rotating?

>> Check Fan Motor (PARTS INFORMATION 5)

07-28

SERVICE PARTS INFORMATION 1

MPa MPa

Compressor

Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting )

Does not start up

Is there open or loose connection
cable?

Check Filter PCB, Main PCB,
connection of Compressor,and winding
resistance. (Refer to the next page).

Check Filter PCB, Main PCB,
connection of Compressor,and winding
resistance. (Refer to the next page).

>> If there is no failure, the defect of
Compressor is considered (Locked
compressor due to clogged dirt or
less oil)

Replace Compressor

Replace Compressor

Replace Compressor

Stops soon after starting up

Is there open or loose connection
cable?

Is Gas Pipe Valve open?
(Low Pressure is too low)

Check if Refrigerant is leaking.
(Recharge Refrigerant)

Check if Strainer is clogged.
(PARTS INFORMATION 4)

>> If there is no failure, the defect of Compressor can be
considered. (Compression part broken or valve defective.)

Abnormal noise

Defective Compressor
can be considered.
(due to inside dirt clogging
or broken component)

Check if vibration noise by
loose bolt or contact noise
of piping is happening.

07-29

7-4 SERVICE PARTS INFORMATION

SERVICE PARTS INFORMATION 2

Check Point 1 : Check Connection

UU(RED)(RED)

V V (WHITE)(WHITE)WW

(BLACK)(BLACK)

Terminal cover opened

MAIN PCB

Check Point 2 : Check Winding Resistance

Check Point 3 : Replace Main PCB

U

V

W

W304
(TM304)

W305
(TM305)

W303
(TM303)

RED

WHITE

BLACK

Compressor

Inverter Compressor

Check terminal connection of Compressor
(loose or incorrect wiring)

Check connection of Main PCB
(Loose or incorrect wiring)

Check winding resistance of each terminal

If the resistance value is 0 or infinite, replace Compressor.

If the symptom does not change with above Check 1, 2, replace Main PCB.

Resistance Value :

1.41 (For AU*24LUAR)

0.88 (For AU*30/ 36LUAS)

0.188 (For AU*45/ 54LUAS)
at 20°C

07-30

SERVICE PARTS INFORMATION 3

Check Point 1 : Check Open or Short-circuit and Diode (D1)

Check Point 2 : Check the Output DC voltage (between P and N1)

Terminal

Resistance value

L2L1

P

N2

N1

Power factor control

D1

(+)

( )

Io

L2

L1

L1,L2

P

P

Control Box

N1

N1

(+)

(+)

( )

( )

Tester(+) Tester(-)

Check the open or short-circuit

Check the Output DC voltage (between P and N1) of compressor stopping and operating.

Terminal

Resistance value

L2

P

P

N2

L2

L2

Tester(+) Tester(-)

Check the diode

If it is abnormal,replace ACTIVE FILTER MODULE

360k

0

360k

720k

5.4M (approx.)

5.3M (approx.)

5.8M (approx.)

5.4M (approx.)

Active Filter Module

Remove connector, check the open or short-circuit and the diode in the module

>> If the output voltage of compressor operating is less than the output voltage of compressor stopping,
Active Filter Module is detective. >> Replace Active Filter Module

07-31

SERVICE PARTS INFORMATION 4

Check Point 2 : Check Coil of EEV

Yellow - Brown

Orange - Red

Blue - Brown

White - Red

Read wire

46 4

Resistance value

Check Point 1 : Check Connections

Check Point 5 : Check Opening and Closing Operation of Valve

Check Point 3 : Check Voltage from Main PCB.

Check Point 4 : Check Noise at start up

Pipe (In)

Pipe (Out)

Hi TEMP.

Pipe (In)

Hi TEMP.

Normal TEMP.

CLOSE
Example : Hot Gas

OPEN
Example : Hot Gas

Pipe (Out)

Hi TEMP.

Pipe (In) Pipe (Out)

Pipe (In) Pipe (Out)

Check Point 6 : Check Strainer

DC

CN27

EXPANSION
VALVE COIL

EV

RED
BROWN
BLUE
ORANGE
YELLOW
WHITE

1
2
3
4
5
6

at 20°C

Outdoor unit Electronic Expansion Valve
( EEV )

Check connection of connector (CN27)
( Loose connector or open cable )

Remove connector, check each winding
resistance of Coil.

If Resistance value is abnormal, replace EEV.

Remove Connector and check Voltage (DC12V)

If it does not appear, replace Main PCB.

Turn on Power and check operation noise.

If an abnormal noise does not show, replace Main PCB.

When Valve is closed,
it has a temp. difference between Inlet and Outlet.

If it is open,
it has no temp. difference between Inlet and Outlet.

Strainer normally does not have temperature difference between inlet and outlet as shown in ,
but if there is a difference as shown in , there is a possibility of inside clogged. In this case, replace Strainer.

07-32

SERVICE PARTS INFORMATION 5

Check Point : AU*24LUAR

Red - Violet

Red - Violet

Red - Black

White - Red

Read Wire

120 8%

55.3 8%

61.2 8%

283 8%

Resistance value

(AC)

Thermal protector

Pr

BLUE

VIOLET

RED

BLACK

WHITE

150°C

Check Point : AU*30/ 36/ 45/ 54LUAS

44.5 10%

40.5 10%

Resistance value

(AC)

Thermal protector

130°C

Pr

1

1 3

2

3

The connector
inserting numbers

2 3

at 20°C

at 20°C

Indoor Unit Fan Motor

Check each winding resistance of the motor

If Resistance value is abnormal, replace motor.

Check each winding resistance of the motor

If Resistance value is abnormal, replace motor.

07-33

SERVICE PARTS INFORMATION 6

Check Point : AU*24LUAR

Red - Blue

Red - Black

White - Red

Read Wire

8%

96.3

54.7

8%

185 8%

Resistance value

(AC)

Thermal protector

Pr

BLUE

RED

BLACK

WHITE

150°C

at 20°C

Outdoor Unit Fan Motor

Check each winding resistance of the motor

If Resistance value is abnormal, replace motor.

07-34

8 . APPENDING DATA

R410A

CASSETTE type

INVERTER

08-01

MODEL : AU*24LUAR / AO*24LMAKL

COOLING

HEATING

AFR 20.8

(°CDB) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

0 4.92 4.28 0.47 5.02 4.04 0.48 5.12 4.27 0.48 5.26 4.44 0.49 5.33 4.41 0.49 5.44 4.33 0.50 5.49 4.29 0.50 5.54 4.47 0.50

5 5.06 4.37 0.59 5.17 4.14 0.60 5.30 4.41 0.61 5.49 4.63 0.62 5.56 4.61 0.62 5.70 4.54 0.63 5.76 4.50 0.63 5.82 4.70 0.64
10 6.00 5.18 0.92 6.15 4.91 0.94 6.30 5.23 0.95 6.55 5.53 0.97 6.65 5.51 0.98 6.83 5.45 0.99 6.91 5.41 1.00 6.99 5.65 1.00
15 5.64 4.85 1.01 5.78 4.58 1.04 5.93 4.91 1.05 6.16 5.20 1.07 6.26 5.18 1.08 6.44 5.13 1.09 6.52 5.10 1.10 6.60 5.35 1.11
20 5.53 4.74 1.14 5.65 4.47 1.16 5.79 4.79 1.17 6.01 5.07 1.20 6.11 5.06 1.21 6.28 5.01 1.23 6.37 4.99 1.24 6.45 5.24 1.25
25 7.16 6.16 1.86 7.34 5.83 1.88 7.50 6.22 1.90 7.78 6.57 1.92 7.90 6.54 1.94 8.12 6.47 1.96 8.22 6.44 1.97 8.31 6.74 1.98
30 6.84 5.85 2.09 7.03 5.57 2.21 7.19 5.96 2.12 7.46 6.30 2.16 7.59 6.28 2.17 7.81 6.23 2.20 7.91 6.20 2.21 8.02 6.52 2.23
35 7.25 6.18 2.88 7.39 5.82 2.89 7.58 6.26 2.92 7.86 6.64 2.96 8.00 6.62 2.98 8.26 6.58 3.02 8.38 6.56 3.04 8.50 6.92 3.06
40 6.83 5.80 3.20 6.93 5.45 3.21 7.09 5.86 3.23 7.38 6.24 3.28 7.52 6.23 3.30 7.78 6.20 3.35 7.91 6.19 3.37 8.04 6.56 3.42
43 6.49 5.48 3.31 6.60 5.17 3.32 6.76 5.57 3.34 7.05 5.96 3.39 7.20 5.96 3.41 7.46 5.94 3.46 7.61 5.94 3.48 7.75 6.31 3.51

Outdoor temperature

19°CWB

21°CWB

22°CWB

23°CWB

12°CWB

15°CWB

16°CWB

18°CWB

Indoor temperature

18°CDB

21°CDB

23°CDB

26°CDB

27°CDB

29°CDB

30°CDB

32°CDB

AFR 20.8

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

(°CDB) (°CWB) TC PI TC PI TC PI TC PI TC PI TC PI TC PI SHC: Sensible Heat capacity (kW)

-10 -11 6.92 3.04 6.81 3.13 6.60 3.23 6.39 3.32 6.28 3.37 6.07 3.47 5.86 3.51 PI : Power Input (kW)

-5 -6 6.80 3.05 6.71 3.14 6.52 3.23 6.33 3.31 6.23 3.36 6.04 3.45 5.85 3.49
0 -1 7.09 3.01 7.00 3.08 6.82 3.16 6.65 3.24 6.56 3.28 6.38 3.35 6.20 3.39
2 1 7.31 3.12 7.23 3.18 7.09 3.25 6.94 3.31 6.86 3.35 6.71 3.41 6.56 3.45
7 6 9.27 2.86 9.18 2.92 9.00 2.98 8.82 3.04 8.73 3.07 8.55 3.13 8.37 3.16

10 8 9.64 2.93 9.55 2.99 9.37 3.04 9.20 3.10 9.11 3.13 8.94 3.18 8.76 3.21
15 12 9.87 2.98 9.78 3.04 9.61 3.09 9.43 3.15 9.34 3.18 9.16 3.23 8.98 3.26
20 15 10.06 2.92 9.97 2.98 9.77 3.04 9.58 3.09 9.48 3.12 9.28 3.18 9.09 3.21
24 18 10.22 2.86 10.11 2.92 9.90 2.98 9.69 3.04 9.59 3.08 9.37 3.14 9.16 3.17

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

23°CDB

25°CDB

27°CDB

30°CDB

8-1. CAPACITY TABLE

8. APPENDING DATA

08-02

MODEL : AU*30LUAS / AO*30LMAWL

MODEL : AUT30LUAS / AOT30LMAWL

COOLING

AFR 26

(°CDB) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-10 7.59 5.79 1.97 7.73 6.18 1.99 7.99 6.48 2.01 8.12 6.40 2.02 8.36 6.28 2.04 8.48 6.13 2.05 8.58 6.49 2.05

0 8.73 6.49 1.73 8.96 7.16 1.74 9.40 7.63 1.75 9.62 7.59 1.75 10.05 7.48 1.76 10.27 7.44 1.77 10.47 7.93 1.77

10 7.58 5.71 2.05 7.77 6.15 2.06 8.15 6.63 2.07 8.34 6.53 2.08 8.71 6.46 2.09 8.88 6.35 2.09 9.05 6.78 2.10

20 10.04 7.13 2.31 10.40 7.82 2.31 11.14 8.47 2.30 11.52 8.45 2.29 12.28 8.39 2.28 12.67 8.36 2.27 13.05 8.98 2.26

30 8.74 6.60 2.78 9.07 7.29 2.78 9.73 7.95 2.79 10.07 7.93 2.79 10.77 7.88 2.78 11.11 7.85 2.78 11.46 8.48 2.78

35 8.66 6.57 3.41 8.99 7.26 3.43 9.66 7.92 3.45 10.00 7.90 3.46 10.61 7.83 3.41 10.96 7.80 3.41 11.30 8.43 3.42

40 7.09 4.90 3.30 7.37 5.49 3.30 7.95 6.08 3.30 8.25 6.15 3.30 8.86 6.22 3.30 9.08 6.16 3.30 9.38 6.71 3.30

43 6.53 4.74 3.30 6.79 5.25 3.30 7.25 5.75 3.30 7.53 5.79 3.30 8.08 5.83 3.30 8.36 5.82 3.30 8.64 6.34 3.30

Indoor temperature

26°CDB 27°CDB 29°CDB

18°CWB 19°CWB

21°CDB 23°CDB

Outdoor temperature

15°CWB 16°CWB 21°CWB 22°CWB 23°CWB

32°CDB30°CDB

HEATING

AFR 26

(°CDB) (°CWB) TC PI TC PI TC PI TC PI TC PI TC PI TC PI

-10 -11 7.73 2.79 7.56 2.85 7.49 3.00 7.22 3.08 6.99 3.09 6.76 3.10 6.38 3.10

-4 -6 8.87 3.02 8.69 3.08 8.44 3.09 8.02 3.09 7.77 3.11 7.52 3.12 7.11 3.11

1 -1 10.21 3.10 9.95 3.11 9.58 3.09 9.11 3.09 8.83 3.10 8.54 3.12 8.04 3.11

7 6 11.77 3.37 11.50 3.37 11.20 3.37 10.57 3.37 10.22 3.37 9.79 3.37 9.20 3.37

12 10 13.83 3.37 13.35 3.37 13.12 3.37 12.35 3.37 11.92 3.37 11.48 3.37 10.77 3.37

18 13 13.32 3.13 13.15 3.22 12.95 3.30 12.61 3.41 12.30 3.48 11.92 3.55 11.34 3.68

24 17 12.77 3.02 12.62 3.10 12.45 3.18 11.95 3.18 11.56 3.19 11.21 3.21 10.52 3.22

23°CDB 25°CDB 27°CDB 30°CDB

Outdoor temperature

Indoor temperature

16°CDB 18°CDB 20°CDB

COOLING

HEATING

AFR 26.7

(°CDB) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-10

6.58 5.69 1.77 7.33 5.72 1.80 7.58 6.22 1.81 8.08 6.24 1.83 8.33 6.74 1.83 8.83 6.72 1.85 9.33 7.15 1.87

0

7.62 6.14 1.55 8.48 6.18 1.57 8.77 6.71 1.58 9.35 6.74 1.60 9.64 7.28 1.61 10.22 7.25 1.62 10.80 7.72 1.64

5

7.09 5.90 1.67 7.89 5.94 1.69 8.16 6.46 1.70 8.70 6.48 1.72 8.97 7.00 1.73 9.51 6.97 1.74 10.04 7.42 1.76

10

6.69 5.73 1.84 7.45 5.77 1.87 7.70 6.27 1.88 8.21 6.29 1.89 8.46 6.79 1.90 8.97 6.77 1.92 9.48 7.21 1.94

15

7.88 6.26 2.07 8.78 6.30 2.10 9.08 6.84 2.11 9.67 6.87 2.14 9.97 7.42 2.15 10.57 7.39 2.17 11.17 7.87 2.19

20

8.86 6.70 2.10 9.87 6.75 2.13 10.21 7.33 2.14 10.88 7.36 2.16 11.22 7.95 2.18 11.89 7.92 2.20 12.57 8.43 2.22

25

8.48 6.53 2.38 9.44 6.57 2.42 9.76 7.14 2.43 10.41 7.17 2.46 10.73 7.73 2.47 11.37 7.71 2.49 12.02 8.21 2.52

30

7.84 6.24 2.55 8.73 6.28 2.59 9.03 6.82 2.60 9.63 6.85 2.63 9.92 7.39 2.64 10.52 7.37 2.66 11.11 7.84 2.69

35

7.90 6.27 3.37 8.80 6.31 3.43 9.10 6.85 3.44 9.70 6.88 3.48 10.00 7.43 3.50 10.60 7.40 3.53 11.20 7.88 3.57

40

6.73 5.75 3.08 7.50 5.79 3.13 7.76 6.29 3.14 8.27 6.31 3.17 8.52 6.82 3.19 9.03 6.79 3.22 9.55 7.23 3.25

43

6.27 5.55 3.11 6.98 5.59 3.16 7.22 6.07 3.18 7.69 6.09 3.21 7.93 6.58 3.23 8.41 6.55 3.26 8.88 6.98 3.29

Outdoor temperature

16 °CWB 18 °CWB12 °CWB 15 °CWB 21 °CWB 23 °CWB

Indoor temperature

18 °CDB 21 °CDB 23 °CDB 25 °CDB 29 °CDB 32 °CDB

19 °CWB

27 °CDB

AFR

26.7

(°CDB) (°CWB)

TC PI TC PI TC PI TC PI TC PI

-10 -11

8.18 3.20 7.98 3.26 7.79 3.33 7.60 3.40 7.40 3.46

-5 -7

9.21 3.37 8.99 3.44 8.77 3.51 8.55 3.58 8.33 3.65

0 -2

10.32 3.42 10.07 3.49 9.83 3.56 9.58 3.63 9.34 3.70

5 3

11.34 3.44 11.07 3.51 10.80 3.58 10.53 3.65 10.26 3.73

7 6

11.76 3.36 11.48 3.43 11.20 3.50 10.92 3.57 10.64 3.64

10 8

12.19 3.38 11.90 3.45 11.61 3.52 11.32 3.59 11.03 3.66

15 10

12.49 3.37 12.20 3.44 11.90 3.51 11.60 3.58 11.30 3.65

20 15

12.35 3.00 12.06 3.07 11.76 3.13 11.47 3.19 11.18 3.26

24 18

12.87 2.97 12.56 3.03 12.26 3.10 11.95 3.16 11.64 3.22

Outdoor temperature

Indoor temperature

16°CDB 18°CDB 20°CDB 22°CDB 24°CDB

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

08-03

MODEL : AU*36LUAS / AO*36LMAWL

MODEL : AUT36LUAS / AOT36LMAWL

COOLING

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

HEATING

AFR 26

(°CDB) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-10 10.91 7.80 1.88 11.18 8.45 1.89 11.72 9.02 1.93 12.01 8.96 1.95 12.58 8.82 1.98 12.87 8.75 2.00 13.14 9.36 2.01

0 9.83 7.13 2.24 10.07 7.79 2.26 10.54 8.37 2.29 10.78 8.30 2.30 11.23 8.16 2.33 11.46 8.08 2.34 11.66 8.68 2.34

10 9.73 7.09 2.06 10.01 7.77 2.06 10.57 8.38 2.07 10.85 8.33 2.07 11.40 8.21 2.07 11.67 8.15 2.07 11.93 8.76 2.07

20 10.77 7.52 2.51 11.15 8.22 2.51 11.93 8.89 2.50 12.33 8.87 2.50 13.14 8.80 2.49 13.55 8.77 2.48 13.95 9.40 2.47

30 10.04 7.44 3.38 10.40 8.19 3.39 11.15 8.91 3.40 11.54 8.89 3.41 12.31 8.83 3.41 12.71 8.80 3.41 13.09 9.48 3.41

35 9.73 7.09 4.07 10.11 7.81 4.09 10.80 8.47 4.07 11.20 8.45 4.08 11.93 8.39 4.05 12.33 8.37 4.06 12.73 9.02 4.07

40 7.31 5.59 3.40 7.60 6.27 3.40 8.20 6.94 3.40 8.51 7.02 3.40 9.13 7.10 3.40 9.36 7.04 3.40 9.67 7.66 3.40

43 6.73 5.41 3.40 7.00 5.99 3.40 7.48 6.56 3.40 7.76 6.61 3.40 8.33 6.65 3.40 8.62 6.64 3.40 8.91 7.24 3.40

Outdoor temperature

Indoor temperature

21°CDB

23°CDB

26°CDB

23°CWB

21°CWB

22°CWB

15°CWB

16°CWB

18°CWB

19°CWB

27°CDB

29°CDB

30°CDB

32°CDB

AFR 26

(°CDB)(°CWB) TC PI TC PI TC PI TC PI TC PI TC PI TC PI

-10 -11 7.73 2.85 7.56 2.90 7.49 3.07 7.22 3.14 7.05 3.20 6.87 3.25 6.60 3.33

-4 -6 8.87 3.09 8.69 3.14 8.51 3.20 8.22 3.29 8.03 3.34 7.84 3.40 7.53 3.49

1 -1 10.29 3.20 10.10 3.27 9.88 3.33 9.55 3.43 9.32 3.49 9.09 3.56 8.72 3.66

7 6 13.27 3.98 13.05 4.06 12.77 4.15 12.30 4.28 11.99 4.36 11.65 4.45 10.97 4.46

12 10 13.95 3.79 13.74 3.88 13.51 3.96 13.03 4.09 12.67 4.18 12.29 4.26 11.68 4.40

18 13 13.32 3.20 13.15 3.28 12.95 3.37 12.61 3.48 12.30 3.55 11.92 3.63 11.34 3.76

24 17 12.77 3.08 12.62 3.17 12.45 3.25 11.95 3.25 11.56 3.25 11.21 3.27 10.52 3.28

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

23°CDB

25°CDB

27°CDB

30°CDB

COOLING

HEATING

AFR 26.7

(°CDB) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-10

7.15 5.98 2.43 7.96 6.02 2.47 8.23 6.54 2.48 8.78 6.57 2.50 9.05 7.09 2.52 9.59 7.06 2.54 10.13 7.52 2.57

0

8.53 6.60 2.12 9.50 6.64 2.15 9.83 7.22 2.16 10.47 7.24 2.19 10.80 7.82 2.20 11.45 7.79 2.22 12.09 8.30 2.24

5

7.93 6.33 2.25 8.84 6.37 2.28 9.14 6.92 2.29 9.74 6.95 2.32 10.04 7.50 2.33 10.65 7.47 2.35 11.25 7.96 2.38

10

8.53 6.60 1.90 9.50 6.64 1.93 9.82 7.21 1.94 10.47 7.24 1.96 10.79 7.82 1.97 11.44 7.79 1.99 12.09 8.29 2.01

15

9.49 7.04 1.92 10.57 7.09 1.95 10.93 7.70 1.96 11.66 7.73 1.98 12.02 8.35 1.99 12.74 8.32 2.01 13.46 8.86 2.03

20

9.47 7.03 2.36 10.55 7.08 2.39 10.91 7.69 2.41 11.63 7.72 2.43 11.99 8.34 2.44 12.71 8.31 2.47 13.43 8.84 2.49

25

9.05 6.84 2.67 10.08 6.88 2.71 10.43 7.48 2.73 11.11 7.51 2.76 11.46 8.10 2.77 12.14 8.07 2.80 12.83 8.60 2.83

30

8.96 6.79 3.27 9.98 6.84 3.32 10.32 7.43 3.34 11.00 7.46 3.37 11.34 8.05 3.39 12.02 8.02 3.42 12.70 8.54 3.46

35

8.85 6.74 4.05 9.85 6.79 4.11 10.19 7.37 4.13 10.86 7.40 4.18 11.20 7.99 4.20 11.87 7.96 4.24 12.54 8.48 4.28

40

6.85 5.85 3.12 7.63 5.89 3.17 7.89 6.40 3.19 8.41 6.43 3.22 8.67 6.94 3.23 9.19 6.91 3.27 9.72 7.36 3.30

43

6.38 5.65 3.16 7.10 5.69 3.21 7.35 6.18 3.22 7.83 6.20 3.25 8.07 6.70 3.27 8.56 6.67 3.30 9.04 7.10 3.34

27 °CDB

23 °CWB

Indoor temperature

18 °CDB

21 °CDB

23 °CDB

25 °CDB

29 °CDB

32 °CDB

19 °CWB

18 °CWB

12 °CWB

15 °CWB

21 °CWB

Outdoor temperature

16 °CWB

AFR 26.7

(°CDB) (°CWB)

TC PI TC PI TC PI TC PI TC PI

-10 -11

8.66 3.33 8.45 3.40 8.24 3.47 8.04 3.53 7.83 3.60

-5 -7

9.74 3.50 9.51 3.57 9.28 3.65 9.05 3.72 8.81 3.79

0 -2

11.16 3.69 10.89 3.76 10.62 3.84 10.36 3.92 10.09 3.99

5 3

12.53 3.89 12.23 3.97 11.93 4.05 11.63 4.13 11.33 4.21

7 6

13.41 4.03 13.09 4.11 12.77 4.20 12.45 4.28 12.13 4.37

10 8

13.98 4.12 13.65 4.21 13.32 4.29 12.98 4.38 12.65 4.46

15 10

14.05 3.87 13.72 3.95 13.38 4.03 13.05 4.11 12.71 4.19

20 15

13.07 3.13 12.76 3.19 12.45 3.26 12.14 3.32 11.83 3.39

24 18

13.62 3.09 13.29 3.15 12.97 3.22 12.65 3.28 12.32 3.35

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

22°CDB

24°CDB

08-04

MODEL : AU*45LUAS / AO*45LJBYL

MODEL : AUT45LUAS / AOT45LJBYL

COOLING

HEATING

AFR 28.3

(°CDB)

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-15 10.59 9.16 2.06 11.13 9.92 2.08 12.07 11.22 2.11 12.55 11.25 2.13 13.50 11.29 2.17 13.99 11.31 2.19 14.49 12.20 2.20

-10 12.64 10.01 2.45 12.97 10.90 2.46 13.63 11.68 2.49 13.95 11.60 2.51 14.57 11.38 2.53 14.86 11.25 2.54 15.12 12.01 2.55

0 11.59 9.12 3.05 11.86 9.99 3.07 12.42 10.75 3.11 12.69 10.66 3.13 13.23 10.47 3.15 13.48 10.37 3.16 13.73 11.17 3.17

10 11.02 8.87 3.36 11.30 9.75 3.38 11.85 10.53 3.42 12.13 10.45 3.43 12.66 10.27 3.46 12.94 10.19 3.48 13.19 10.99 3.49

20 13.27 9.87 3.53 13.69 10.78 3.53 14.54 11.66 3.52 14.99 11.62 3.52 15.91 11.56 3.50 16.33 11.52 3.48 16.78 12.37 3.47

30 11.71 9.18 4.24 12.12 10.10 4.25 12.95 10.96 4.26 13.37 10.93 4.27 14.23 10.83 4.27 14.66 10.78 4.27 15.06 11.62 4.27

35 11.68 9.17 5.13 12.09 10.09 5.16 12.86 10.94 5.13 14.00 10.90 5.15 14.02 11.04 5.18 14.43 10.69 5.13 14.82 11.54 5.15

40 10.12 8.34 5.00 10.37 9.18 5.00 10.97 9.99 5.00 11.34 10.00 5.00 12.55 9.91 5.00 12.29 9.90 5.00 12.63 10.73 5.00

43 9.28 7.98 5.00 9.62 8.87 5.00 10.26 9.70 5.00 10.63 9.67 5.00 11.18 9.54 5.00 11.51 9.49 5.00 11.84 10.31 5.00

32°CDB

21°CWB

22°CWB

23°CWB

21°CDB

23°CDB

15°CWB

16°CWB

Outdoor temperature

Indoor temperature

26°CDB

27°CDB

29°CDB

18°CWB

19°CWB

30°CDB

AFR 28.3

(°CDB) (°CWB) TC PI TC PI TC PI TC PI TC PI TC PI TC PI

-15 -16 7.32 3.55 7.16 3.61 7.02 3.66 6.43 3.71 6.34 3.79 6.23 3.86 6.06 3.94

-10 -11 9.55 4.05 9.34 4.12 9.12 4.18 8.79 4.29 8.68 4.51 8.34 4.47 7.92 4.49

-4 -6 10.99 4.17 10.75 4.25 10.51 4.32 10.07 4.41 9.77 4.43 9.45 4.45 8.93 4.46

1 -1 12.66 4.41 12.33 4.42 12.00 4.45 11.42 4.45 10.98 4.42 10.63 4.44 10.03 4.44

7 6 16.57 4.60 16.07 4.60 16.00 4.60 14.96 4.60 14.36 4.60 13.71 4.60 12.86 4.44

12 10 17.48 4.60 16.96 4.60 16.42 4.60 15.73 4.60 15.07 4.40 14.53 4.44 13.59 4.20

18 13 18.28 4.40 17.90 4.60 17.34 4.40 16.53 4.40 15.98 4.20 15.37 4.20 14.34 4.00

20 15 18.01 4.20 17.53 4.20 17.15 4.20 16.36 4.20 15.66 4.00 15.12 4.00 14.17 4.00

24 17 17.50 4.00 17.01 4.00 16.62 4.00 15.82 4.00 15.11 4.00 14.61 4.00 13.62 4.00

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

23°CDB

25°CDB

27°CDB

30°CDB

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

COOLING

HEATING

AFR 29.2

(°CDB)

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-15 10.06 8.42 2.04 10.59 9.16 2.06 11.13 9.92 2.08 12.07 11.22 2.11 12.55 11.25 2.13 13.50 11.29 2.17 13.99 11.31 2.19 14.49 12.20 2.20

-10 12.00 9.20 2.43 12.64 10.01 2.45 12.97 10.90 2.46 13.63 11.68 2.49 13.95 11.60 2.51 14.57 11.38 2.53 14.86 11.25 2.54 15.12 12.01 2.55
0 11.01 8.39 3.02 11.59 9.12 3.05 11.86 9.99 3.07 12.42 10.75 3.11 12.69 10.66 3.13 13.23 10.47 3.15 13.48 10.37 3.16 13.73 11.17 3.17

10 10.47 8.16 3.33 11.02 8.87 3.36 11.30 9.75 3.38 11.85 10.53 3.42 12.13 10.45 3.43 12.66 10.27 3.46 12.94 10.19 3.48 13.19 10.99 3.49
20 12.61 9.08 3.51 13.27 9.87 3.53 13.69 10.78 3.53 14.54 11.66 3.52 14.99 11.62 3.52 15.91 11.56 3.50 16.33 11.52 3.48 16.78 12.37 3.47
30 11.13 8.44 4.23 11.71 9.18 4.24 12.12 10.10 4.25 12.95 10.96 4.26 13.37 10.93 4.27 14.23 10.83 4.27 14.66 10.78 4.27 15.06 11.62 4.27
35 11.10 8.43 5.13 11.68 9.17 5.13 12.09 10.09 5.16 12.86 10.94 5.13 14.00 10.90 5.15 14.02 11.04 5.18 14.43 10.69 5.13 14.82 11.54 5.15
40 9.61 7.67 5.00 10.12 8.34 5.00 10.37 9.18 5.00 10.97 9.99 5.00 11.34 10.00 5.00 12.55 9.91 5.00 12.29 9.90 5.00 12.63 10.73 5.00
43 8.82 7.34 5.00 9.28 7.98 5.00 9.62 8.87 5.00 10.26 9.70 5.00 10.63 9.67 5.00 11.18 9.54 5.00 11.51 9.49 5.00 11.84 10.31 5.00

Outdoor temperature

26°CDB

15°CWB

16°CWB

12°CWB

29°CDB

18°CWB

19°CWB

21°CWB

22°CWB

23°CWB

30°CDB

21°CDB

23°CDB

18°CDB

Indoor temperature

32°CDB

27°CDB

AFR 29.2

(°CDB) (°CWB)

TC PI TC PI TC PI TC PI TC PI TC PI TC PI

-15 -16 8.53 3.78 8.35 3.84 8.24 4.14 7.86 4.14 7.75 4.60 7.45 4.60 7.07 4.60

-10 -11 10.50 4.20 10.28 4.27 10.03 4.34 9.68 4.46 9.55 4.60 9.17 4.60 8.71 4.60

-4 -6 12.45 4.38 12.18 4.47 11.91 4.54 11.42 4.60 11.06 4.60 10.71 4.60 10.12 4.60
1 -1 14.35 4.60 13.97 4.60 13.59 4.60 12.94 4.60 12.45 4.60 12.04 4.60 11.36 4.60
7 6 16.74 4.60 16.24 4.60 16.00 4.60 15.12 4.60 14.50 4.60 13.85 4.60 12.99 4.60

12 10 17.66 4.60 17.13 4.60 16.59 4.60 15.89 4.60 15.22 4.60 14.68 4.60 13.73 4.60
18 13 18.47 4.60 18.08 4.60 17.52 4.60 16.70 4.60 16.15 4.60 15.52 4.60 14.48 4.60
20 15 18.20 4.60 17.71 4.60 17.33 4.60 16.53 4.60 15.82 4.60 15.28 4.60 14.32 4.60
24 17 17.50 4.60 17.01 4.60 16.62 4.60 15.82 4.60 15.11 4.60 14.61 4.60 13.62 4.60

30°CDB

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

23°CDB

25°CDB

27°CDB

08-05

MODEL : AUT54LUAS / AOT54LJBYL

AFR: Air flow rate (m3/min)

TC : Total capacity (kW)

SHC: Sensible Heat capacity (kW)

PI : Power Input (kW)

COOLING

HEATING

AFR 29.2

(°CDB)

(°CWB)

TC PI TC PI TC PI TC PI TC PI TC PI TC PI

-15 -16 8.79 4.27 8.61 4.34 8.49 4.68 8.10 4.68 8.00 5.20 7.68 5.20 7.29 5.20

-10 -11 10.83 4.74 10.60 4.83 10.34 4.91 9.98 5.04 9.85 5.20 9.46 5.20 8.98 5.20

-4 -6 12.84 4.96 12.56 5.05 12.28 5.14 11.78 5.20 11.40 5.20 11.04 5.20 10.44 5.20

1 -1 14.80 5.20 14.41 5.20 14.02 5.20 13.35 5.20 12.84 5.20 12.41 5.20 11.71 5.20

7 6 17.27 5.20 16.74 5.20 16.50 5.20 15.59 5.20 14.96 5.20 14.28 5.20 13.39 5.20

12 10 18.21 5.20 17.67 5.20 17.11 5.20 16.39 5.20 15.70 5.20 15.14 5.20 14.16 5.20

18 13 19.05 5.20 18.65 5.20 18.07 5.20 17.22 5.20 16.65 5.20 16.01 5.20 14.94 5.20

20 15 18.77 5.20 18.26 5.20 17.87 5.20 17.04 5.20 16.32 5.20 15.75 5.20 14.76 5.20

24 17 17.50 5.20 17.01 5.20 16.62 5.20 15.82 5.20 15.11 5.20 14.61 5.20 13.62 5.20

Outdoor temperature

Indoor temperature

16°CDB

18°CDB

20°CDB

23°CDB

25°CDB

27°CDB

30°CDB

AFR 29.2

(°CDB)

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

-15 10.42 8.29 2.26 10.97 9.01 2.28 11.53 9.76 2.30 12.51 11.04 2.34 13.00 11.06 2.36 13.98 11.10 2.40 14.49 11.12 2.42 15.00 12.00 2.43

-10 12.43 9.05 2.68 13.09 9.84 2.71 13.43 10.72 2.72 14.12 11.49 2.76 14.45 11.41 2.78 15.09 11.19 2.80 15.39 11.06 2.81 15.66 11.81 2.82
0 11.40 8.25 3.34 12.00 8.97 3.38 12.29 9.82 3.40 12.86 10.58 3.44 13.14 10.48 3.47 13.71 10.30 3.49 13.96 10.20 3.50 14.22 10.98 3.51

10 10.84 8.03 3.68 11.41 8.72 3.72 11.70 9.59 3.74 12.27 10.36 3.79 12.56 10.28 3.80 13.11 10.10 3.83 13.40 10.02 3.85 13.66 10.81 3.86
20 13.06 8.93 3.90 13.75 9.70 3.91 14.18 10.60 3.91 15.06 11.46 3.90 15.52 11.43 3.89 16.47 11.37 3.87 16.91 11.33 3.85 17.38 12.16 3.84
30 11.53 8.30 4.68 12.13 9.02 4.69 12.55 9.93 4.70 13.41 10.78 4.72 13.84 10.75 4.73 14.74 10.66 4.73 15.18 10.60 4.73 15.59 11.43 4.73
35 11.50 8.29 5.70 12.10 9.01 5.70 12.53 9.92 5.70 13.32 10.76 5.70 14.50 10.72 5.70 14.52 10.86 5.70 14.95 10.52 5.70 15.35 11.35 5.70
40 9.95 7.54 5.15 10.48 8.20 5.15 10.74 9.03 5.15 11.36 9.82 5.15 11.75 9.83 5.15 13.00 9.75 5.15 12.73 9.74 5.15 13.08 10.56 5.15
43 9.13 7.22 5.15 9.61 7.84 5.15 9.97 8.72 5.15 10.63 9.54 5.15 11.01 9.51 5.15 11.58 9.39 5.15 11.93 9.34 5.15 12.26 10.14 5.15

21°CWB

22°CWB

23°CWB

Indoor temperature

27°CDB

29°CDB

32°CDB

15°CWB

16°CWB

18°CDB

12°CWB

19°CWB

30°CDB

Outdoor temperature

26°CDB

18°CWB

21°CDB

23°CDB

08-06

MODEL : AU*24LUAR / AO*24LMAKL

Indoor temperature

Indoor humidity

Outdoor temperature

Cooling

Dry

18 to 32°C

About 80% or less

0 to 43°C

Heating

16 to 30°C

-

-10 to 24°C

Operation Range

Mode

MODEL : AU*30/ 36LUAS / AO*30/ 36LMAWL

Indoor temperature

Indoor humidity

Outdoor temperature

Cooling

Dry

18 to 32°C

About 80% or less

-10 to 43°C

Heating

16 to 30°C

-

-10 to 24°C

Operation Range

Mode

MODEL : AU*45/ 54LUAS / AO*45/ 54LJBYL

Indoor temperature

Indoor humidity

Outdoor temperature

Cooling

Dry

18 to 32°C

About 80% or less

-15 to 43°C

Heating

16 to 30°C

-

-15 to 24°C

Operation Range

Mode

8-2. OPERATION RANGE

08-07

Indoor unit

Outdoor unit

Voltage V

Frequency Hz

Cooling Heating Cooling Heating

Current A 11.1 10.5

Input kW 2.53 2.40

Max Operating Current A 12.5 12.5

Starting Current A

Main Fuse (Circuit breaker)
Current

A

Power Cable

m

m

2

*2)Limited wiring length m

Input kW

Full Load Amp. A

Input kW

Full Load Amp. A

*1) Wiring Spec : Selected Sample

(Selected based on Japan Electrotechnical Standard and Codes Committee E0005)

*2) Limited Wiring length : This is the wiring length in case voltage descent is less than 2%.

When the wiring length becomes long, please select the wiring of a more larger
diameter.

Model Name

AU*24LUAR

AO*24LMAKL

AU*30LUAS

AO*30LMAWL

Power Supply

Rated Value

Mode

*1) Wiring Spec

25

33

1010

4.0

Indoor Fan Motor

0.153

0.64

0.73

Outdoor Fan Motor

0.15

12.5 12.4

2.86 2.84

15.2 14.8

15 15

30

27

4.0

0.19

1.00

0.42

0.13

230

50

Indoor unit

Outdoor unit

Voltage V

Frequency Hz

Cooling Heating Cooling Heating

Current A

Input kW

Max Operating Current A

Starting Current A

Main Fuse (Circuit breaker)
Current

A

Power Cable

m

m

2

*2)Limited wiring length m

Input kW

Full Load Amp. A

Input kW

Full Load Amp. A

Model Name

AU*36LUAS

AO*36LMAWL

AU*45LUAS

AO*45LJBYL

Power Supply

Rated Value

Mode

*1) Wiring Spec

Indoor Fan Motor

Outdoor Fan Motor

230

50

17.6 15.2

4.01 3.49

17.9 18.2

15 15

30

4.0

21

0.19

1.00

0.42

0.13

19.5 17.3

4.45 3.95

22.6 20.0

30

27

15 15

6.0

0.23

1.35

0.067 x 2

0.34 x 2

8-3. ELECTRIC CHARACTERISTICS

08-08

Indoor unit

Outdoor unit

Voltage V

Frequency Hz

Cooling Heating Cooling Heating

Current A

Input kW

Max Operating Current A

Starting Current A

Main Fuse (Circuit breaker)
Current

A

Power Cable

m

m

2

*2)Limited wiring length m

Input kW

Full Load Amp. A

Input kW

Full Load Amp. A

*1) Wiring Spec : Selected Sample

(Selected based on Japan Electrotechnical Standard and Codes Committee E0005)

*2) Limited Wiring length : This is the wiring length in case voltage descent is less than 2%.

When the wiring length becomes long, please select the wiring of a more larger
diameter.

Model Name

AUT30LUAS

AOT30LMAWL

AUT36LUAS

AOT36LMAWL

Power Supply

Rated Value

Mode

*1) Wiring Spec

Indoor Fan Motor

Outdoor Fan Motor

240

50

Indoor unit

Outdoor unit

Voltage V

Frequency Hz

Cooling Heating Cooling Heating

Current A

Input kW

Max Operating Current A

Starting Current A

Main Fuse (Circuit breaker)
Current

A

Power Cable

m

m

2

*2)Limited wiring length m

Input kW

Full Load Amp. A

Input kW

Full Load Amp. A

Model Name

AUT45LUAS

AOT45LJBYL

AUT54LUAS

AOT54LJBYL

Power Supply

Rated Value

Mode

*1) Wiring Spec

Indoor Fan Motor

Outdoor Fan Motor

240

50

12.0 11.9

16.8 14.6

2.86 2.84

4.01 3.49

14.6 14.6

17.5 17.5

15 15

15 15

0.13

0.13

-

-

21

0.19

0.19

1.00

1.00

30

4.0

4.0

30

27

18.6 16.6

4.45 3.95

22.6 20.0

0.067 x 2

0.34 x 2

0.23

1.35

6.0

30

27

1515

23.5 20.4

5.60 4.85

24.0 23.5

0.067x2

0.23

1.35

6.0

30

25

15 15

0.34x2

08-09

OUTDOOR UNIT

PROTECTION FORM

AO*24LMAKL

FUSE
(SIDE OF POWER SUPPLY TERMINAL)

- 25A 250V

- 3.15A 250V

- 5A 250V

FAN MOTOR PROTECTION THERMAL PROTECTOR 150±5°C OFF

PRESSURE SWITCH 4.2MPa

THERMAL SWITCH

OFF 120±5°C

ON 85±7°C

FUSE ON MAIN PCB

COMPRESSOR PROTECTION

PROTECTION FORM AO*30LMAWL AO*36LMAWL

FUSE (SIDE OF POWER SUPPLY TERMINAL) - 25A 250V 25A 250V

FUSE (SIDE OF INDOOR UNIT) - 10A 250V 10A 250V

- 3.15A 250V 3.15A 250V

- 5A 250V 5A 250V

FAN MOTOR PROTECTOR THERMAL PROTECTOR 150±5°C OFF 150±5°C OFF

HIGH PRESSURE PROTECTION PRESSURE SWITCH

OFF:4.2±0.1MPa
ON:3.2±0.15MPa

OFF:4.2±0.1MPa
ON:3.2±0.15MPa

DISCHARGE THERMISTOR THERMAL PROTECTOR

OFF:120±5°C

ON:80±5°C

OFF:120±5°C

ON:80±5°C

COMPRESSOR THERMISTOR THERMAL PROTECTOR

OFF:130±5°C

ON:80±5°C

OFF:130±5°C

ON:80±5°C

FUSE ON MAIN PCB

PROTECTION FORM AO*45LJBYL AO*54LJBYL

FUSE
(SIDE OF INDOOR UNIT TERMINAL)

- 10A 250V 10A 250V

- 3.15A 250V 3.15A 250V

- 5A 250V 5A 250V

FAN MOTOR PROTECTOR THERMAL PROTECTOR 150±5°C OFF 150±5°C OFF

HIGH PRESSURE PROTECTION PRESSURE SWITCH

OFF:4.2±0.1MPa
ON:3.2±0.15MPa

OFF:4.2±0.1MPa
ON:3.2±0.15MPa

DISCHARGE THERMISTOR THERMAL PROTECTOR

OFF:120±5°C

ON:80±5°C

OFF:120±5°C

ON:80±5°C

COMPRESSOR THERMISTOR THERMAL PROTECTOR

OFF:130±5°C

ON:80±5°C

OFF:130±5°C

ON:80±5°C

FUSE ON MAIN PCB

8-4. SAFETY DEVICE