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1

In the interests of user-safety (Required by safety regulations in some
countries)  the set should be restored to its original condition and only
parts identical to those specified should be used.

Page

SPECIFICATIONS ............................................................................................................................................. 2
EXTERNAL DIMENSIONS ............................................................................................................................... 4
WIRING DIAGRAMS ......................................................................................................................................... 5
ELECTRICAL PARTS ....................................................................................................................................... 9
MICROCOMPUTER CONTROL SYSTEM ..................................................................................................... 11
FUNCTIONS ................................................................................................................................................... 19
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT ................................................................................ 27
REFRIGERATION CYCLE .............................................................................................................................. 32
PERFORMANCE CURVES ............................................................................................................................ 34
REFRIGERANT PIPE INSTALLATION WORKS ............................................................................................. 35
DISASSEMBLING PROCEDURE ................................................................................................................... 37
REPLACEMENT PARTS LIST ........................................................................................................................ 46

2

ITEMS

INDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT

OUTDOOR UNIT

AY-AP18DR

AE-A18DR

AY-AP24DR

AE-A24DR

Cooling capacity 

kW

5.2

6.7

Heating capacity 

kW

5.5

8.1

Moisture removal 

Liters/h

1.6

2.2

Phase

–

Single

Rated frequency

Hz

50

Rated voltage

V

220 – 240

Rated current 

Cool

A

9.2 – 9.3

12.7 – 13.1

Heat

A

8.2 – 8.4

13.3 – 13.6

Rated input 

Cool

kW

1.99 – 2.15

2.62 – 2.76

Heat

kW

1.77 – 1.93

2.75 – 2.90

Rated factor 

Cool

%

98 – 96

94 – 88

Heat

%

98 – 96

94 – 89

Compressor

Type

Hermetically sealed rotary type

Model

5KS225DAA

5JS315DAB

Oil charge

470cc [RB68A or Freol AlPha68M]

700cc [RB68A or Freol AlPha68M]

Refrigerant system

Evaporator

Louver fin and Grooved tube type

Condenser

Corrgate fin and Grooved tube type

Control

Capillary tube

Refrigerant volume (R-410A)

1060g

1550g

De-lce system

Micro computer controled reverse sysetm

Noise level

High

dB(A)

41

52

45

54

(at cooling)

Med.

dB(A)

36

–

39

–

Low

dB(A)

34

–

37

–

Drive

Direct drive

Air flow quantity

High

m

3

/min.

15.7

48

18.3

46

 (at cooling)

Med.

m

3

/min.

13.9

–

14.7

–

Low

m

3

/min.

11.7

–

13.5

–

Fan

Cross flow fan

Propeller fan

Cross flow fan

Propeller fan

Refrigerant coupling

Flare type

Refrigerant tube size Gas, Liquid

1/2", 1/4"

Drain piping mm

O.D  ø 20

Safety device

Compressor: Internal protector

Compressor: Internal protector

Fan motors: Thermal protector(Internal)

Fuse, Micro computer control

Air filters

Polypropylene net (Washable)

Net dimensions

Width

mm

1040 (1155)

890 (1020)

1040 (1155)

890 (1020)

(Cartont dimensions)

Height

mm

325 (300)

645 (735)

325 (300)

645 (735)

Depth

mm

220 (385)

327 (398)

220 (385)

327 (398)

Net weight (Gross weight)

kg

16 (21)

54 (58)

16 (21)

61 (65)

 Note: The condition of star (     ) marked item are ‘ISO5151:1994(E), condition T1’.

3

ITEMS

INDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT

OUTDOOR UNIT

AH-AP18DR

AU-A18DR

AH-AP24DR

AU-A24DR

Cooling capacity 

kW

5.2

6.7

Moisture removal 

Liters/h

1.6

2.2

Phase

–

Single

Rated frequency

Hz

50

Rated voltage

V

220 – 240

Rated current 

A

9.2 – 9.3

12.7 – 13.1

Rated input 

kW

1.99 – 2.15

2.62 – 2.76

Rated factor 

%

98 – 96

94 – 88

Compressor

Type

Hermetically sealed rotary type

Model

5KS225DAA

5JS315DAB

Oil charge

470cc [RB68A or Freol AlPha 68M]

700cc [RB68A or Freol AlPha 68M]

Refrigerant system

Evaporator

Louver fin and Grooved tube type

Condenser

Louver fin and Grooved tube typ

Control

Capillary tube

Refrigerant volume (R-410A)

910g

1380g

De-lce system

Micro computer controled reverse sysetm

Noise level

High

dB(A)

41

52

45

54

(at cooling)

Med.

dB(A)

36

–

39

–

Low

dB(A)

34

–

37

–

Drive

Direct drive

Air flow quantity

High

m

3

/min.

15.7

48

18.3

46

 (at cooling)

Med.

m

3

/min.

13.9

–

14.7

–

Low

m

3

/min.

11.7

–

13.5

–

Fan

Cross flow fan

Propeller fan

Cross flow fan

Propeller fan

Refrigerant coupling

Flare type

Refrigerant tube size Gas, Liquid

1/2", 1/4"

Drain piping mm

O.D  ø 20

Safety device

Compressor: Internal protector

Compressor: Internal protector

Fan motors: Thermal protector(Internal)

Fuse, Micro computer control

Air filters

Polypropylene net (Washable)

Net dimensions

Width

mm

1040 (1155)

890 (1020)

1040 (1155)

890 (1020)

(Cartont dimensions)

Height

mm

325 (300)

645 (735)

325 (300)

645 (735)

Depth

mm

220 (385)

327 (398)

220 (385)

327 (398)

Net weight (Gross weight)

kg

16 (21)

51 (55)

16 (21)

60 (64)

 Note: The condition of star (     ) marked item are ‘ISO5151:1994(E), condition T1’.

4

220

950

Power supply cord
(AY-AP18DR, AH-AP18DR only)

[Length unit : mm] 

325

1040

Remote controller

58

18.5

22

140

SAVE MODE

TEMP.

FAN

IH

SWING CANCEL

FULL POWER

INVERTER AIR CONDITIONER

TEMP.

MODE

FAN

TIMER

570

645

202

122

320

342

890

290

37

30

172

25

62

46.3

10.5

ø4.5