Toshiba RAS-13NKHD-E, AS-13UAH-E3, RAS-13UAH-E3, RAS-10NKHD-E, RAS-07NKHD-E user guide manual

SERVICE MANUAL

AIR CONDITIONER

RAS-13NKHD-E / RAS-13UAH-E3
RAS-10NKHD-E / RAS-10UAH-E3
RAS-07NKHD-E / RAS-07UAH-E3

FILE NO. SVM-04022-1

SPLIT WALL TYPE

RAS-13NKD-E / RAS-13UA-E3
RAS-10NKD-E / RAS-10UA-E3
RAS-07NKD-E / RAS-07UA-E3

Revised on March, 2005

CONTENTS

1. SPECIFICATIONS

2. CONSTRUCTION VIEWS

2-1 Indoor Unit
2-2 Outdoor Unit (RAS-13UAH-E3, RAS-10UAH-E3, RAS-13UA-E3,

RAS-10UA-E3)

2-3 Outdoor Unit (RAS-07UAH-E3, RAS-07UA-E3)

3. WIRING DIAGRAM

3-1 RAS-13NKHD-E / RAS-13UAH-E3

RAS-10NKHD-E / RAS-10UAH-E3, RAS-07NKHD-E / RAS-07UAH-E3
RAS-13NKD-E / RAS-13UA-E3

3-2 RAS-10NKD-E / RAS-10UA-E3, RAS-07NKD-E / RAS-07UA-E3

4. SPECIFICATION OF ELECTRICAL PARTS

4-1 Indoor Unit
4-2 Outdoor Unit (RAS-13UAH-E3)
4-3 Outdoor Unit (RAS-10UAH-E3)
4-4 Outdoor Unit (RAS-07UAH-E3)
4-5 Indoor Unit (RAS-13NKD-E, RAS-10NKD-E, RAS-07NKD-E)
4-6 Outdoor Unit (RAS-13UA-E3)

4-7 Outdoor Unit (RAS-10UA-E3)
4-8 Outdoor Unit (RAS-07UA-E3)

FILE NO. SVM-04022

5. REFRIGERATION CYCLE DIAGRAM

5-1 RAS-13NKHD-E / RAS-13UAH-E3
5-2 RAS-10NKHD-E / RAS-10UAH-E3
5-3 RAS-07NKHD-E / RAS-07UAH-E3
5-4 RAS-13NKD-E / RAS-13UA-E3
5-5 RAS-10NKD-E / RAS-10UA-E3

5-6 RAS-07NKD-E / RAS-07UA-E3

6. CONTROL BLOCK DIA GRAM

6-1 Heat Pump model
6-2 Cooling model

7. OPERATION DESCRIPTION

7-1 Outline of Air Conditioner Control
7-2 Description of Operation Circuit
7-3 Hi POWER Mode
7-4 High-Temperature Limit Control
7-5 Low-Temperature Limit Control
7-6 Defrost Operation (NKHD Series only)
7-7 Current Limit Control (NKHD Series only)

7-8 Auto Restart Function
7-9 Filter Check Lamp
7-10 Self-Cleaning function

– 1 –

8. INSTALLATION PROCEDURE

8-1 Safety Cautions
8-2 Installation Diagram of Indoor and Outdoor Units
8-3 Installation
8-4 Indoor Unit
8-5 Outdoor Unit
8-6 How to Set Remote Control Selector Switch
8-7 Others

9. TROUBLESHOOTING CHART

9-1 Troubleshooting Procedure
9-2 Basic Check Items
9-3 Primary Judgement
9-4 Self-Diagnosis by Remote Control (Check Code)
9-5 Troubleshooting Flowcharts
9-6 Troubleshooting for Remote Control (Including The Indoor P.C. Board)
9-7 Troubleshooting for Air Purifier and Minus Ion

10. PART REPLACEMENT

10-1 Indoor Unit
10-2 Outdoor Unit

FILE NO. SVM-04022

11. EXPLODED VIEWS AND PARTS LIST

11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-3 Outdoor Unit (RAS-13UAH-E3)
11-4 Outdoor Unit (RAS-10UAH-E3)
11-5 Outdoor Unit (RAS-07UAH-E3)
11-6 Outdoor Unit (RAS-13UA-E3)
11-7 Outdoor Unit (RAS-10UA-E3)

11-8 Outdoor Unit (RAS-07UA-E3)

– 2 –

FILE NO. SVM-04022

1. SPECIFICA TIONS

MODEL RAS-13NKHD-E/ RAS-13UAH-E 3 RAS-13NKD-E / RAS-13UA-E3

ITEM Cooling Heating Cooling

Capacity

Power source V 220 − 240

Power consumption kW 1.27 1.32 1.26 1.33 1.24 1.28
Pow er factor % 98 96 98 96 98 95
Running Indoor A 0.15
current Outdoor A 5.75 5.60 5.70 5.65 5.75 5.60
Starting current A 25 24
Moisture removal lit/h 2.0

Noise

Refrigerant

Refrigerant control Capillary tube

Interconnection
pipe

INDOOR UNIT RAS-13NKHD-E RAS-13NKD-E

Dimensions Width mm 790

Net weight kg 10
Evaporator type Finned tube
Indoor fan type Cross flow fan

Air volume Medium fan m3/h 520 550 520

Fan motor output W 20
Air filter Honeycomb woven filter with PP frame

OUTDOOR UNIT RAS-13UAH-E3 RAS-13UA-E3

Dimensions Width mm 780

Net weight kg 37 34
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2120
Fan motor output W

Compressor

Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24 15 ~ 43

Indoor (H/M/L) dB 41/35/31
Outdoor (220 − 240 V)dB 49 51 49 51 47 48
Name of refrigerant R22
Rated amount kg 1.00 0.80

Gas side size mm ∅12.7
Connection type Flare connection
Liquid side size mm ∅6.35
Connection type Flare connection
Maximum length

(One way)
Maximum height

difference

Height mm 275

Depth mm 218

High fan m3/h 630 650 630

Low fan m3/h 430 490 430

Height mm 550

Depth mm 270

Model PH170T2-4L2 PH225X2C-4FT
Output W 1100

kW 3.55 3.60 4.40 4.45 3.70 3.75

Phase 1∅

Hz 50

m

m

220 V 240 V 220 V 240 V 220 V 240 V

1

15*

6

2200

2120 2200 2030 2150

42

30

– 3 –

FILE NO. SVM-04022

MODEL RAS-10NKHD-E / RAS-10UAH-E3 RAS-10NKD-E / RAS-10UA-E3

ITEM Cooling Heating Cooling

Capacity

Power source V 220 − 240

Power consumption kW 1.00 1.05 0.89 0.91 0.80 0.85
Power factor % 95 92 94 91 97 95
Running Indoor A 0.15
current Outdoor A 4.65 4.60 4.15 4.00 3.60 3.58
Starting current A 19 16
Moisture removal lit/h 1.2

Noise

Refrigerant

Refrigerant control Capillary tube

Interconnection
pipe

INDOOR UNIT RAS-10NKHD-E RAS-10NKD-E

Dimensions Width mm 790

Net weight kg 10
Evaporator type Finned tube
Indoor fan type Cross flow fan

Air volume Medium fan m3/h 460 520 460

Fan motor output W 20
Air filter Honeycomb woven filter with PP frame

OUTDOOR UNIT RAS-10UAH-E3 RAS-10UA-E3

Dimensions Width mm 780

Net weight kg 31 30
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 1740 1850 1740 1850 1740 1850
Fan motor output W 20

Compressor

Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24 15 ~ 43

Indoor (H/M/L) dB 39/33/26
Outdoor (220 − 240 V)dB 47 49 47 49 44 45
Name of refrigerant R22
Rated amount kg 0.76 0.65

Gas side size mm ∅9.52
Connection type Flare connection
Liquid side size mm ∅6.35
Connection type Flare connection
Maximum length

(One way)
Maximum height

difference

Height mm 275

Depth mm 218

High fan m3/h 570 610 610

Low fan m3/h 340 400 340

Height mm 550

Depth mm 270

Model PH120T1-4C PH102T1-4CH
Output W 750

kW 2.70 2.75 3.12 3.15 2.65 2.70

Phase 1∅

Hz 50

m 10*

m

220 V 240 V 220 V 240 V 220 V 240 V

1

5

− 4 −

FILE NO. SVM-04022

MODEL

RAS-07NKHD-E RAS-07NKD-E

RAS-07UAH-E3 RAS-07UA-E3

ITEM Cooling Heating Cooling

Capacity

Phase 1∅ı

Power source V 220 − 240

Power consumption kW 0.69 0.76 0.60 0.65 0.60 0.64
Power factor % 98 97 97 95 92 89
Running Indoor A 0.15
current Outdoor A 3.05 3.10 2.65 2.70 2.80 2.85
Starting current A 13 11
Moisture removal lit/h 0.8
Noise Indoor (H/M/L) dB 38/32/26

Outdoor (220-240V) dB

Refrigerant

Refrigerant control Capillary tube

Interconnection
pipe

Name of refrigerant R-22
Rated amount kg 0.62 0.57

Gas side size mm ı 9.52
Connection type Flare connection
Liquid side size mm ı 6.35
Connection type Flare connection
Maximum length

(One way)
Maximum height

difference

220V 240V 220V 240V 220V 240V

kW 2.00 2.05 2.20 2.25 2.10 2.15

Hz 50

44

m10*

m 5

45 45

46

44

1

45

INDOOR UNIT RAS-07NKHD-E RAS-07NKD-E

Height mm 275

Dimensions Width mm 790

Depth mm 218
Net weight kg 10
Evaporator type Finned tube
Indoor fan type Cross flow fan

High fan m3/h 570 610 570
Air volume Medium fan m3/h 460 490 460

Low fan m3/h 340 400 340
Fan motor output W 20
Air filter Honeycomb woven filter with PP frame

OUTDOOR UNIT RAS-07UAH-E3 RAS-07UA-E3

Height mm 530
Dimensions Width mm 660

Depth mm 240
Net weight kg 27 26
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 1280 1360 1280 1360 1280 1360
Fan motor output W 20

Compressor

Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24 15 ~ 43

Model PH80T1-4C

Output W 605

– 5 –

Note : 1

•

Capacity is based on the following temperature conditions.

FILE NO. SVM-04022

Temperature

Indoor unit inlet air temperature

Outdoor unit inlet air temperature

Note : 2

*1

No need to charge extra refrigerant.

Condition

Cooling Heating

(DB) 27°C 20°C

(WB) 19°C 15°C

(DB) 35°C 7°C

(WB) 24°C 6°C

JIS B8615-1

− 6 −

2-1.Indoor Unit

FILE NO. SVM-04022

2. CONSTRUCTION VIEWS

Front panel

60

6

Knock out system

Air inlet Air Filter

275

Back body

Heat exchanger Plasma air purifier

790

Air outlet

64

53

120 80

590

Hanger

218

60

6

48

Knock out system

48

Drain hose (0.54 m)

Hanger

45

Minimum
distance
to ceiling

275

1

7

0

o

r

m

o

r

e

320

620

235 235

215 215

e

r
o

Minimum

m

distance

or

to ceiling

5
6

Hanger

–7 –

Connecting pipe (0.43 m)
(Flare ∅6.35)

Connecting pipe (0.33 m)

(For 13 series ; Flare ∅12.70
For 07, 10 series ; Flare ∅9.52)

Hanger

For stud bolt (∅6)

Hanger

150150 160160

9090

Installation plate outline

Center line

For stud bolt
(∅8~∅10)

26

Minimum
distance
to ceiling

1

7

0

o

r

m

o

r

e

32

4519040

163

58 19

Wireless remote control

FILE NO. SVM-04022

2-2. Outdoor Unit (RAS-13UAH-E3, RAS-10UAH-E3, RAS-13UA-E3, RAS-10UA-E3)

A

A

Detail Drawing (Back Leg)

6 Hole

∅

302

310

32.5

600

52
36

270

R15

R5.5

310

302

∅

30 Drain outlet

436

∅

530

265

FAN GUARD

115 125

∅

11 x 14 Hole

2­(For

∅8-∅

600
780

10 anchor bolt)

∅11 x 14 Hole

90

62

B

B Detail Drawing (Front Leg)

310

102

302

∅6 Hole

36

52

310
330

R15

COVER PV

Z

Electrical
part cover

Installation dimension

B or more

325

100 or more

Z

Air outlet

View

600

Air inlet

A or more

600 or more

120

54

75

13 Series

600 mm 400 mm

A

B 100 mm 45 mm

∅

11 Long holes (For∅8-∅10 anchor bolt)

4 x

Liquid side
(Flare ∅6.35)

Gas side
(Flare ∅9.52)
10 Series

Gas side
(Flare ∅12.7)
13 Series

Service port

10 Series

– 8 −

2-3. Outdoor Unit (RAS-07UAH-E3, RAS-07UA-E3)

A

97

A

Detail Drawing (Back Leg)

∅

6 Hole

265

273.5

50
36

660

R 15

R 5.5

530

273.5

∅

420

59.5

∅

Fan guard

25Drain outlet

2-

∅

11x14 hole

(for

∅8-∅

B

10 anchor bolt)

FILE NO. SVM-04022

B

Detail Drawing (Front Leg)

265

273.5

∅

6 Hole

∅

11x14 Hole

36
50

R 15

660

Cover PV

Z

242

Installation dimension

100 or more

325

100 or more

Air outlet

500 97.5
660

View

Z

600

Air inlet

600 or more

600 or more

(11)

126

48

297

54

Service port

56

4x

∅

11x14 Long holes (for∅8-∅10 anchor bolt)

(12.5)273.5 (pitch)

Liquid side
(Flare

∅

Gas side

∅

(Flare

6.35)

9.62)

− 9 −

WIRING DIAGRAM

3.

3-1. RAS-13NKHD-E / RAS-13UAH-E3

FILE NO. SVM-04022

Power Cord

SINGLE PHASE
220-240V 50Hz

BLK

BLK

BRW
BLU

GRN & YEL

THERMO

SENSOR (TA)

BLK

HEAT EXCHANGER

SENSOR (TC)

BLK

INDOOR

TERMINAL

OUTDOOR
TERMINAL

112

CN03

112

CN01

BLOCK

BLOCK

BLK
P04

ORN

T02
C.T.

73°C

THERMAL FUSE

PNK

PNK

112

CN04

2

SG01

P01

P02

2

R22

VARISTOR

3

4

RY01

F01

T6.3A 250V

RY04RY03

CR01

Louver

Motor

YEL

54321

CN07

54321

C01

R21

VARISTOR

MAIN P.C. BOARD
MCC-5007

YEL

YEL

YEL

CN25

WHI

L01

150°C

2

BLK

1

WHI

CN01

CR02

RED

2

BLU

GRN & YEL

4

3

AC FAN MOTOR

1

2

1

2

BLU

BLU

1

2

1

2

DC12V
DC12V
DC5V

C02

C15

CN10

BLK

1

1

GRY

2

2

YEL

3

3

BRW

4

4

RED

5

5

WHI

6

6

INFRARED RAYS RECEIVE

AND INDICATION PARTS
345

345

BLU

345
345

6
6

BLU

BLU

BLU

6
6

POWER SUPPLY
CIRCUIT

R01

R26

789

789

BLU

789

789

CN13

BLU

DB01 C03

R25

CR03

R27

335

5

1
1

BLU

IC03

1

10
10

BLU

10
10

CN11

11
11

WHI

11
11

CN34

BRW

1

1

BLU

2

2

BRW

4

4

BRW

3

3

BRW

2

2

RED

1

1

+

CN33

1

3

2

4

1

3

2

4

BLK

RED

1
1

331

2

2

Power supply

BRW

BRW

BRW

3

5

2

4

3

5

2

4

High-voltage

RED

WP-002

RED

BLK

6
6

RED

BLK

BLK/RED

Ion

Electrode

Air purifier

Electrode

OVERLOAD RELAY

COMPRESSOR

BLK

BLK

PNK
WHI

1(L) 2(N)

RED

SOLENOID COIL

RED

RED

CAPACITOR

BLU

CAPACITOR

BLU

FAN MOTOR

43

CHASSIS

WHI

BLK

– 10 −

3-2. RAS-10NKHD-E / RAS-10UAH-E3

RAS-07NKHD-E / RAS-07UAH-E3

FILE NO. SVM-04022

Power Cord

SINGLE PHASE
220-240V 50Hz

BLK

BLK

OVERLOAD RELAY

BRW
BLU

GRN & YEL

THERMO

SENSOR (TA)

BLK

HEAT EXCHANGER

SENSOR (TC)

BLK

INDOOR

TERMINAL

OUTDOOR
TERMINAL

BLK

BLOCK

BLOCK

ORN

112

CN03
112

CN01

BLK
P04

C.T.

73°C

THERMAL FUSE

PNK

PNK

112

CN04

2

SG01

T02

P01

P02

2

R22

VARISTOR

3

4

RY01

F01

T6.3A 250V

RY04RY03

CR01

Louver

Motor

CN07

C01

R21

VARISTOR

MAIN P.C. BOARD
MCC-5007

YEL

YEL

YEL

YEL

54321
54321

WHI

L01

150°C

2

BLK

1

1(L) 2(N)

BLK

RED

WHI

RED

2

3

BLU

SOLENOID COIL

CAPACITOR

RED

RED

CN01

BLU

CR02

BLU

GRN & YEL

4

43

CHASSIS

BLK

WHI

AC FAN MOTOR

CN25

1
1

BLU

1
1

C02

1

1

2

2

3

3

4

4

5

5

6

6

INFRARED RAYS RECEIVE

AND INDICATION PARTS

345
345

BLU

345
345

DC12V

DC12V
DC5V

BLU

BLU

POWER SUPPLY
CIRCUIT

R01

6
6

BLU

6
6

2
2

BLU

2
2

R26

CR03

R27

C15

CN10
BLK
GRY
YEL
BRW
RED
WHI

335

5

789
789

BLU

789
789

CN13

DB01 C03

R25

10

11

10

11

BLU

WHI

BLU

BLU

10

11

10

11

CN34

BRW

1

1

BLU

2

2

BRW

4

4

BRW

3

3

BRW

2

2

RED

1

1

+

CN33

1

3

2

4

1

3

2

4

BLK

IC03

CN11

1

2

1

1

2

331

RED

1
1

Power supply

BRW

BRW

BRW

3

5

2

4

3

5

2

4

High-voltage

RED

WP-002

RED

BLK

6
6

RED

BLK

BLK/RED

Ion

Electrode

Air purifier

Electrode

COMPRESSOR

PNK
WHI

FAN MOTOR

CAPACITOR

− 11 −

3-3. RAS-13NKD-E / RAS-13UA-E3

FILE NO. SVM-04022

Power Cord

SINGLE PHASE
220-240V 50Hz

BLK

BLK

BRW
BLU

GRN & YEL

THERMO

SENSOR (TA)

BLK

HEAT EXCHANGER

SENSOR (TC)

BLK

INDOOR

TERMINAL

OUTDOOR
TERMINAL

CN03

CN01

BLOCK

BLOCK

112

112

BLK
P04

73°C

SG01

CN04

R22

VARISTOR

3

4

PNK

112

RY01

PNK

2

THERMAL FUSE

F01

T6.3A 250V

Louver

Motor

CN07

54321
54321

C01

R21

VARISTOR

YEL

YEL

YEL

YEL

CN25

WHI

L01

MAIN P.C. BOARD
MCC-5007

2

150°C

2

WHI

BLK

1

GRN & YEL

2

AC FAN MOTOR

INFRARED RAYS RECEIVE

1

2

1

2

BLU

BLU

1

2

1

2

DC12V

DC12V
DC5V

C02

C15

CN10

BLK

1

1

GRY

2

2

YEL

3

3

BRW

4

4

RED

5

5

WHI

6

6

AND INDICATION PARTS

345
345

BLU

345
345

6
6

BLU

BLU

6
6

POWER SUPPLY
CIRCUIT

R01

R26

BLU

CN13

789

789

BLU

789

789

BLU

DB01 C03

R25

CR03

R27

335

5

1
1

BLU

IC03

1

10
10

BLU

10
10

CN11

11
11

WHI

11
11

CN34

BRW

1

1

BLU

2

2

BRW

4

4

BRW

3

3

BRW

2

2

RED

1

1

+

CN33

1

3

2

4

1

3

2

4

BLK

RED

1
1

331

2
2

Power supply

BRW

BRW

BRW

3

5

2

4

3

5

2

4

High-voltage

RED

WP-002

RED

BLK

6
6

RED

BLK

BLK/RED

Ion

Electrode

Air purifier

Electrode

BLK

BLK RED

1(L) 2(N)

FAN MOTOR

CAPACITOR

RED

WHI

COMPRESSOR

CHASSIS

RED

PNK
WHI

– 12 −

3-4. RAS-10NKD-E / RAS-10UA-E3

RAS-07NKD-E / RAS-07UA-E3

FILE NO. SVM-04022

Power Cord

SINGLE PHASE
220-240V 50Hz

BLK

BLK

BRW
BLU

GRN & YEL

THERMO

SENSOR (TA)

BLK

HEAT EXCHANGER

SENSOR (TC)

BLK

INDOOR

TERMINAL

OUTDOOR
TERMINAL

CN03

CN01

BLOCK

BLOCK

112

112

BLK
P04

73°C

SG01

CN04

R22

VARISTOR

3

4

PNK

112

RY01

PNK

2

THERMAL FUSE

F01

T6.3A 250V

Louver

Motor

CN07

R21

C01

VARISTOR

YEL

YEL

YEL

YEL

54321
54321

CN25

WHI

L01

MAIN P.C. BOARD
MCC-5007

2

150°C

2

WHI

BLK

1

GRN & YEL

2

AC FAN MOTOR

1

2

1

2

BLU

BLU

1

2

1

2

DC12V
DC12V
DC5V

C02

C15

CN10

BLK

1

1

GRY

2

2

YEL

3

3

BRW

4

4

RED

5

5

WHI

6

6

INFRARED RAYS RECEIVE

AND INDICATION PARTS

345
345

BLU

345
345

BLU

BLU

POWER SUPPLY
CIRCUIT

R01

R26

6
6

BLU

6
6

789
789

BLU

789
789

CN13

BLU

DB01 C03

R25

CR03

R27

335

5

1
1

BLU

IC03

1

10
10

BLU

10
10

CN11

11
11

WHI

11
11

CN34

BRW

1

1

BLU

2

2

BRW

4

4

BRW

3

3

BRW

2

2

RED

1

1

+

CN33

1

3

2

4

1

3

2

4

BLK

RED

1
1

331

2
2

Power supply

BRW

BRW

BRW

3

5

2

4

3

5

2

4

High-voltage

RED

WP-002

RED

BLK

6
6

RED

BLK

BLK/RED

Ion

Electrode

Air purifier

Electrode

BLK

BLK RED

OVERLOAD

RELAY

1(L) 2(N)

FAN MOTOR

BLK

CAPACITOR

RED
WHI

COMPRESSOR

CHASSIS

RED

PNK
WHI

− 13 −

FILE NO. SVM-04022

4. SPECIFICATION OF ELECTRICAL PARTS

4-1.Indoor Unit (RAS-13NKHD-E, RAS-10NKHD-E, RAS-07NKHD-E)

No. Parts name Type Specifications

1 Fan motor (for indoor) SKF-220-20-4A-1 AC Motor with 150°C thermo fuse
2 Thermo sensor (TA-sensor) 10kΩ at 25°C
3 Switching transformer SWT-77
4 Microcontroller unit (IC30) TMP87CM40AN
5 Heat exchanger sensor

(TC-sensor)
6 Line filter (L01) LC*SS11V-06270 27mH, 600mA
7 Bridge rectifier (DB01) D3SBA60 4A, 600 V
8 Capacitor (C03) KHM400VSSN47M225 47μF, 400 V
9 Fuse (F01) BET6.3A T6.3A, 250VAC

10 Varistor (R21, R22) 15G561K320 560 V
11 MP24Z 12VDC

Louver motor

12 Relay (Comp., RY01) DI1U Rating 25A/AC250 V, 12VDC

10kΩ at 25°C

Relay (Fan, RY03)

13

Relay (Solenoide, RY04)

14

G5N-1A

G5N-1A

Rating 3A/AC250V, 12VDC
Rating 3A/AC250V, 12VDC

4-2. Outdoor Unit (RAS-13UAH-E3)

No. Parts name Type Specifications

Output (Rated) 1100 W, 2 poles, 1 phase, 220 − 240 V, 50Hz

1 Compressor PH170T2-4L2 Winding resistance ( ) C-R C-S

°

(at 20 C) 2.22 3.04
Output (Rated) 42 W, 6 poles, 1 phase, 220 − 240 V, 50Hz

2 Fan motor (for outdoor) HF-240-42A Winding resistance ( ) Red-Black White-Black

°

(at 20 C) 176.2 290.5

Running capacitor

3

(for fan motor)

Running capacitor

4

(for compressor)

Overload relay

5

DS451155CBPQC AC 450 V, 1.5μF

DS371356CPNB AC 370V, 35μF

RAT00AL

Bimetal of current cantrol :
U/T : 8.6A (100°C), OPEN : 150±5°C, CLOSE : 70±11°C

Bimetal of temperature control :

OPEN : 130±5°C, CLOSE : 75±15°C

Ω

Ω

– 14 –

FILE NO. SVM-04022

4-3. Outdoor Unit (RAS-10UAH-E3)

No. Parts name Type Specifications

Output (Rated) 750 W, 2 poles, 1 phase, 220 − 240 V, 50Hz

1 Compressor PH120T1-4C Winding resistance ( ) C-R C-S

°

(at 20 C) 4.53 8.73
Output (Rated) 20 W, 6 poles, 1 phase, 220 − 240 V, 50Hz

Winding resistance ( ) Red-Black White-Black

°

(at 20 C

2 Fan motor (for outdoor)

Running capacitor

3

(for fan motor)

Running capacitor

4

(for compressor)

HF-240-20B or

SKF-240-20B

DS451155BPQC AC 450 V, 1.5μF

DS371256CPNB AC 370 V, 25μF

Ω

Ω

387.3 or 235.2 466.2 or 260.1

5 Overload relay JMRA99269-9200 U/T : 6.8A (90

°

C), OPEN : 135±5 C, CLOSE : 69±11 C

°°

4-4. Outdoor Unit (RAS-07UAH-E3)

No. Parts name Type Specifications

Output (Rated) 560W, 2poles, 1 phase, 220 − 240V, 50Hz

1 Compressor PH80T1-4C Winding resistance (Ω)C-RC-S

(at 20°C) 4.80 8.37

2 Fan motor (for outdoor)

Running capacitor
3

(for fan motor)

Running capacitor
4

(for compressor)
5 Overload relay JMRA99208-9201 U/T: 4.2A (80°C), OPEN: 135±5°C, CLOSE: 69±11°C

HF-240-20B or
SKF-240-20B

DS451155CBPQC AC 450V, 1.5μF

DS371256CPN AC 370V, 25μF

Output (Rated) 20W, 6poles, 1 phase, 220 − 240V, 50Hz
Winding resistance (Ω) Red-Black White-Black
(at 20°C)

387.3 or 235.2

466.2 or 260.1

− 15 −

FILE NO. SVM-04022

4-5. Indoor Unit (RAS-13 NKD-E, RAS-10NKD-E, RAS-07NKD-E)

No. Parts name Type Specifications

1 Fan motor (for indoor) SKF-220-20-4A-1 AC Motor with 150°C thermo fuse
2 Thermo sensor (TA-sensor) ——— 10kΩ at 25°C
3 Switching transformer SWT-77
4 Microcontroller unit (IC30) TMP87CM40AN
5 Heat exchanger sensor

(TC-sensor)
6 Line filter (L01) LC*SS11V-06270 27mH, 600mA
7 Bridge rectifier (DB01) D3SBA60 4A, 600 V
8 Capacitor (C03) KHM400VSSN47M225 47μF, 400 V
9 Fuse (F01) BET6.3A T6.3A, 250VAC

10 Varistor (R21, R22) 15G561K320 560 V
11 Louver motor MP24Z 12VDC
12 Relay (Comp., RY01) DI1U Rating 25A/AC250 V, 12VDC

——— 10kΩ at 25°C

4-6. Outdoor Unit (RAS-13UA-E3)

No. Parts name Type Specifications

Output (Rated) 1100 W, 2 poles, 1 phase, 220 − 240 V, 50Hz

1 Compressor

2 Fan motor (for outdoor) HF-240-30B Winding resistance (Ω) Red-Black White-Black

Running capacitor

3

Running capacitor

4

(for compressor)

PH225X2C-4FT

DS451155CBPQC AC 450 V, 1.5μF

DS371356CPNB AC 370V, 35 F

Winding resistance (Ω)C-RC-S

°

(at 20 C) 2.35 3.33
Output (Rated) 30 W, 6 poles, 1 phase, 220 − 240 V, 50Hz

°

(at 20 C) 245 388

μ

− 16 −

FILE NO. SVM-04022

4-7. Outdoor Unit (RAS-10UA-E3)

No. Parts name Type Specifications

Output (Rated) 750 W, 2 poles, 1 phase, 220 − 240 V, 50Hz

1 Compressor PH102T1-4CH Winding resistance (Ω)C-RC-S

(at 20°C) 3.17 5.18

2 Fan motor (for outdoor)

Running capacitor

3

(for fan motor)
Running capacitor

4

(for compressor)

HF-240-20B or
SKF-240-20B

DS451155BPQC AC 450 V, 1.5 F

DS371256CPNB AC 370 V, 25 F

4-8. Outdoor Unit (RAS-07UA-E3)

Output (Rated) 20 W, 6 poles, 1 phase, 220 − 240 V, 50Hz
Winding resistance (Ω) Red-Black White-Black
(at 20°C)

387.3 or 235.2

μ

μ

466.2 or 260.1

No. Parts name Type Specifications

Output (Rated) 560W, 2poles, 1 phase, 220 − 240V, 50Hz

1 Compressor PH80T1-4C Winding resistance (Ω)C-RC-S

(at 20°C) 4.80 8.37
Output (Rated) 20W, 6poles, 1 phase, 220 − 240V, 50Hz

2 Fan motor (for outdoor) Winding resistance (Ωı) Red-Black White-Black

Running capacitor

3

(for fan motor)
Running capacitor

4

(for compressor)

5 Overload relay LAAO00A U/T: 9.0A (80°C), OPEN: 135±5°C, CLOSE: 75±11°C

HF-240-20B or
SKF-240-20B

(at 20°C)

DS451155CBPQC AC 450V, 1.5μˇF

DS371156CPNB AC 370V, 15μˇF

387.3 or 235.2 466.2 or 260.1

− 17 −

5. REFRIGERATION CYCLE DIAGRAM

5-1. RAS-13NKHD-E / RAS-13UAH-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39 m
(Connecting pipe)

∅12.7

O.D.:12.7 mm O.D.:6.35 mm

Cooling

Heating

Heating

P

Packed valve

(∅12.7)

Heating

4-way valve

Cooling

Compressor

PH170T2-4L2

Accumulator

Heat exchanger

Cross flow fan

T1

Capillary tube

∅1.5 x 700

Packed valve

(∅6.35)

Capillary tube

∅1.0 x 900

l

0.49 m

(Connecting pipe)

∅6.35

l

Heat exchanger

Refrigerant
R22 : 1.00 kg.

Cooling
Heating

Propeller fan
Outdoor unit

Mark ( ) means check points of Gas Leak.

Ambient temp.

50Hz

Standard

pressure

(MPaG)

P

Surface temp. of heat

exchanger interchanging

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

Standard 1.84 46.0 High 20/15 7/6

Heating Overload*1 2.00 ~ 2.42 52.0 ~ 59.0 Low 27/− 24/18

Low temperature 1.50 38.0 High 20/

−

−10/−10

Standard 0.49 10.0 High 27/19 35/24

Cooling Overload 0.60 15.0 High 32/23 43/26

Low temperature 0.45 2.0 Low 21/15 21/15

Note

Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

•

•

*1 During heating overload operation, a value for the high temperature limit control operation is included.

− 18 −

5-2. RAS-10NKHD-E / RAS-10UAH-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39 m
(Connecting pipe)
∅9.52

O.D.:9.52 mm O.D.:6.35 mm

Cooling

Heating

Heating

P

Packed valve

(∅9.52)

Heating

4-way valve

Cooling

Compressor

PH120T1-4C

Accumulator

Heat exchanger

Cross flow fan

T1

0.49 m
(Connecting pipe)
∅6.35

Packed valve

(∅6.35)

Capillary tube

∅1.5 x 900l

Heat exchanger

Refrigerant
R22 : 0.76 kg.

Cooling

Heating

Propeller fan
Outdoor unit

Mark ( ) means check points of Gas Leak.

Ambient temp.

Surface temp. of heat

exchanger inter changing

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

50Hz

Standard

pressure

(MPaG)

P

Standard 1.65 40.0 High 20/15 7/6

Heating Overload*1 2.00 ~ 2.40 52.0 ~ 59.0 Low 27/− 24/18

Low temperature 1.40 35.0 High 20/−

−10/−10

Standard 0.48 12.0 High 27/19 35/24

Cooling Overload 0.58 15.0 High 32/23 43/26

Low temperature 0.45 5.0 Low 21/15 21/15

Note

• Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

*1 • During heating overload operation, a value for the high temperature limit control operation is included.

− 19 −

5-3. RAS-07NKHD-E / RAS-07UAH-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39m
(Connecting pipe)
∅9.52

O.D.:9.52mm O.D.:6.35mm

Cooling

Heating

Heating

P

Packed valve

(∅9.52)

Heating

4-way valve

Cooling

Compressor

PH80T1-4C

Accumulator

Heat exchanger

Cross flow fan

T1

0.49m
(Connecting pipe)
∅6.35

Packed valve

(∅6.35)

Capillary tube

∅1.0x800S

(2 pcs.)

Heat exchanger

Refrigerant
R-22 : 0.62 kg.

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Cooling
Heating

50Hz

Propeller fan
Outdoor unit

Standard

pressure P

(MPaG)

Mark( )means check points of Gas Leak.

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

Standard 1.35 35.0 High 20/– 7/6

Heating Overload 1.85 49.0 Low 27/– 24/18

Low temperature 1.10 30.0 High 20/– –10/–10
Standard 0.58 12.0 High 27/19 35/24

Cooling Overload 0.67 16.0 High 32/23 43/26

Low temperature 0.50 2.0 Low 21/15 21/15

Note :

• Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

– 20 –

5-4. RAS-13NKD-E / RAS-13UA-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39 m
(Connecting pipe)
∅12.7

O.D.:12.7 mm O.D.:6.35 mm

Cooling

Packed valve

Cooling

P

(∅12.7)

Compressor

PH225X2C-4FT

Heat exchanger

Cross flow fan

T1

Packed valve

(∅6.35)

Capillary tube

∅1.7 x 1000

0.49 m
(Connecting pipe)
∅6.35

l

Heat exchanger

Refrigerant
R22 : 0.80 kg.

Cooling

Propeller fan
Outdoor unit

Mark ( ) means check points of Gas Leak.

Ambient temp.

50Hz

Standard

pressure

(MPaG)

P

Surface temp. of heat

exchanger interchanging

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

Standard 0.48 9.0 High 27/19 35/24

Cooling Overload 0.59 15.0 High 32/23 43/26

Low temperature 0.45 2.0 Low 21/15 21/15

Note

• Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

− 21 −

5-5. RAS-10NKD-E / RAS-10UA-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39 m
(Connecting pipe)
∅9.52

O.D.:9.52 mm O.D.:6.35 mm

Cooling

Packed valve

Cooling

P

(∅9.52)

Compressor

PH102T1-4CH

Heat exchanger

Cross flow fan

T1

0.49 m
(Connecting pipe)
∅6.35

Packed valve

(∅6.35)

Capillary tube

∅1.5 x 1000l

Heat exchanger

Refrigerant
R22 : 0.65 kg.

Cooling

Propeller fan
Outdoor unit

Mark ( ) means check points of Gas Leak.

Ambient temp.

50Hz

Standard

pressure

(MPaG)

P

Surface temp. of heat

exchanger interchanging

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

Standard 0.53 11.0 High 27/19 35/24

Cooling Overload 0.62 16.0 High 32/23 43/26

Low temperature 0.48 5.0 Low 21/15 21/15

Note

• Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

− 22 −

5-6. RAS-07NKD-E / RAS-07UA-E3

FILE NO. SVM-04022

Indoor unit

Cooling

0.39m
(Connecting pipe)
∅9.52

O.D.:9.52mm O.D.:6.35mm

Cooling

Packed valve

Cooling

P

(∅9.52)

Compressor

PH80T1-4C

Heat exchanger

Cross flow fan

T1

0.49m
(Connecting pipe)
∅6.35

Packed valve

(∅6.35)

Capillary tube

∅1.5x1200S

Heat exchanger

Refrigerant
R-22 : 0.57 kg.

Fan speed

(indoor)

50Hz

Cooling

Propeller fan

Outdoor unit

Standard

pressure P

(MPaG)

Mark( )means check points of Gas Leak.

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

Standard 0.45 13.5 High 27/19 35/24

Cooling

Overload 0.69 18.0 High 32/23 43/26
Low temperature 0.32 2.0 Low 21/15 21/15

Note :

• Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

– 23 –

6-1. Heat Pump model

Heat Exchange sensor

6. CONTROL BLOCK DIAGRAM

Main Unit Control Panel

Functions

M.C.U.

FILE NO. SVM-04022

Operation

Display

Thermo. Sensor

Infrared Rays Signal Reciver

•ı Louver Control

•ı3-minutes Delay at Restart

for Compressor

•ıAir-purifier control

Initiallizing Circuit

Clock Frequency
Oscillator Circuit

Power Supply

Circuit

Noise Filter Relay Driver, Louver Driver

•ıMotor Revolution Control

•ıProcessing

(Temperature Processing)

•ıTimer

Compressor

ON/OFF

Signal

Outdoor Fan

ON/OFF

Signal

RY01

Relay

4-Way Valve

ON/OFF

Signal

RY03

Relay

Louver

ON/OFF

Signal

Relay

Timer

Display

Filter Sign

Display

Hi Power

Sign Display

PAP

Sign Display

Indoor Fan

Motor

Air purifier

Unit

Micro

Switch

Louver

Motor

RY04

220-240 V~ 50-60Hz

REMOTE CONTROL

Compressor 4-Way Valve

Remote Control

Operation (START/STOP)
Operation Mode Selection

AUTO, COOL, DRY, HEAT

Temperature Setting
Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver Auto Swing

Louver Direction Setting

ECO

Hi Power

Filter Reset

Air Purifier

Outdoor Fan Motor

Infrared Rays

SLEEP

− 24 −

6-2. Cooling model

Heat Exchange sensor

Thermo. Sensor

Infrared Rays Signal Reciver

Main Unit Control Panel M.C.U.

Functions

• Louver Control

• 3-minutes Delay at Restart

for Compressor

•ıAir-purifier control

Initiallizing Circuit

Clock Frequency
Oscillator Circuit

Power Supply

Circuit

• Motor Revolution Control

• Processing

(Temperature Processing)

• Timer

Compressor

ON/OFF

Signal

FILE NO. SVM-04022

Operation

Display

Timer

Display

Filter Sign

Display

Hi Power

Sign Display

PAP

Sign Display

Indoor Fan

Motor

Air purifier

Unit

Louver

ON/OFF

Signal

Micro

Switch

220-240 V~ 50-60Hz

REMOTE CONTROL

Noise Filter Relay Driver, Louver Driver

Relay

RY01

Compressor, Outdoor Fan Motor

Infrared Rays

Remote Control

Operation (START/STOP)
Operation Mode Selection

AUTO, COOL, DRY, FAN ONLY

Temperature Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver Auto Swing

Louver Direction Setting

Louver

Motor

ECO

Hi power

Filter Reset

Air Purifier

SLEEP

– 25 –

7. OPERATION DESCRIPTION

FILE NO. SVM-04022

7-1.Outline of Air Conditioner Control

This is a fixed-capacity type of air conditioner with a
Plasma Air-Purifier consisting of an AC fan motor for
an indoor unit. Both Plasma Air-Purifier and AC motor
drive circuit are mounted in the indoor unit. The
electrical parts driving the compressor and the fan
motor for an outdoor unit are mounted in the outdoor
unit.
The air conditioner is controlled by the controller
mounted in the indoor unit. The controller operates all
components based on the commands transmitted from
the remote control and the feedback data of the sensor
is as follow:

• The temperature measurement at the air inlet of
the indoor heat exchanger by the indoor
temperature sensor

•ı The temperature measurement at the indoor
heat exchanger by the indoor heat exchanger
temperature sensor

• Plasma Air-Purifier operation control

• Indoor fan motor operation control

• Louver motor control

• LED display control

• Outdoor fan motor operation control

•

4-WAYS-VALVE operation control

• Compressor operation control

• Receiving the information of the operation

status and judging the information or the
indication of errors

7-1-1. Louver control

(1) Vertical air flow louver

Position of veritcal air flow louver is automatically
controlled according to the operation mode.
Besides, position of vertical air flow louver can be
arbitrarily set by pressing [FIX] button.
The louver position which is set by [FIX] button is
stored in the microcomputer, and the louver is
automatically set at the stored position for the next
operation.

(2) Swing

If [SWING] button is pressed when the indoor unit
is in operation, the vertical air flow louver starts
swinging. When [FIX] button is pressed, it stops
swinging.

7-1-2. Indoor fan control (AC Fan motor)

(1) The indoor fan is operated by the stepless speed

change AC motor.

(2) For air flow level, speed of the indoor fan motor is

controlled in five steps (LOW, LOW

+

, MED, MED
and HIGH). If AUTO mode is selected, the fan
motor speed is automatically controlled by the
difference between the preset temperature and
the room temperature.

LOW

MED

=

MED+HIGH

+

=

2

LOW+MED

+

2

+

OPERATION

MODE

RAS-07NKD Series

RAS-07NKHD Series

RAS-10NKD Series

Model

RAS-10NKHD Series

RAS-13NKD Series

RAS-13NKHD Series

Table 7-1-1

F AN TAP
Cooling UH H M L L- UL SL
Fan only H M L L­Dry M L L- UL SL
Heat UH H M L L- UL SL
PAP only UH H M L L- UL SL
rpm 1350 1300 1200 1050 1000 950 900 800 750 700 650
Air flow volume (m3/h) 650 630 570 490 460 430 400 340 310 280 250
rpm 1300 1200 1050 1000 900 800 750 700 650
Air flow volume (m3/h) 630 570 490 460 400 340 310 280 250
rpm 1350 1250 1050 1000 950 900 800 750 700 650
Air flow volume (m3/h) 650 610 490 460 430 400 340 310 280 250
rpm
Air flow volume (m3/h)

rpm
Air flow volume (m3/h)

rpm
Air flow volume (m3/h)

1300 1200 1100 1000 900 800 750 700 650

1250

610

1300

630

1250

630 570 520 460 400 340 310 280 250

610

1350 1300 1150 1100 1050 1000 950 900 850 750

650 630 550 520 490 460 430 400 370 310

1350 1300 1150 1100 1050 1020 950 900 850 750

650 630 550 520 490 470 430 400 370 310

800
340

800
340

700
280

700
280

– 26 –

FILE NO. SVM-04022

7-2.Description of Operation Circuit

(1) When turning on the breaker, the operation lamp

blinks. This means that the power is on (or the
power supply is cut off.)

(2) When pressing [

receiving beep sounds from the indoor unit, and
the next operation is performed together with
opening the vertical air flow louver.

(3) Once the operation mode is set, it is memorized in

the microcontroller so that the previous operation
can be effected thereafter simply by pressing [

button.

7-2-1. Fan only operation (NKD Series only)

([MODE] button on the remote control is set
to the fan only operation.)

(1) When [FAN] button is set to AUTO, the indoor fan

motor operates as shown in Fig. 7-2-1. When
[FAN] button is set to LOW, LOW
HIGH, the motor operates with a constant air flow.

°C

+3
+2.5
+2

+1.5
+1
+0.5

(Room temp.) − (Preset temp.)

Preset
temp.

0

NOTE :

*1: The values marked with *1 are calculated and

controlled by the difference in motor speed
between M+ and L–.

Fig. 7-2-1 Setting of air flow [FAN:AUTO]

(2) The Hi POWER operation cannot be set.

] button on the remote control,

+

, MED, MED+ or

M+

*1
*1
*1

L−

(Preset temp.: 22°C)

]

7-2-2. Cooling operation

([MODE] button on the remote control is set
to the cooling operation.)

(1) The compressor, outdoor fan and operation

display on the remote control are controlled as
shown in Fig. 7-2-2.

°C

ON ON

OFF OFF ON

Compressor

Outdoor fan

display

OPERATION

(Room temp.) − (Preset temp.)

Preset
temp.

0.5

0

Fig. 7-2-2

(2) When [FAN] button is set to AUTO, the indoor fan

motor operates as shown in Fig. 7-2-3. When

+

[FAN] button is set to LOW, LOW

, MED, MED+ or

HIGH, the motor operates with a constant air flow.

°C

(Room temp.) − (Preset temp.)

Preset
temp.

+3
+2.5
+2
+1.5
+1
+0.5

0

-0.5

M+

*1
*1
*1

L−

NOTE :

*1: The values marked with *1 are calculated and

controlled by the difference in motor speed
between M+ and L–.

– 27 –

Fig. 7-2-3 Setting of air flow [FAN:AUTO]

FILE NO. SVM-04022

7-2-3. Dry operation

([MODE] button on the remote control is set
to the dry operation.)

(1) The compressor, 4-way valve, outdoor fan and

operation display on the remote control are
controlled as shown in Fig. 7-2-4.

°C

ON:6min.

OFF:4min.

ON:5min.

OFF:5min.

OFF

4-way valve

Outdoor fan

−

(Room temp.) (Preset temp.)

Preset
temp.

+3

+2

+1

ON:6min.

OFF:4min.

OFF

ON:5min.

OFF:5min.

OFF

0

Compressor

Fig. 7-2-4

ON

display

OPERATION

7-2-4. Heating operation (NKHD Series only)

([MODE] button on the remote control is set
to the heating operation.)

(1) The compressor, 4-way valve, outdoor fan and

operation display on the remote control are
controlled as shown in Fig. 7-2-6.

°C

Preset
temp.

0

-0.5

−

(Room temp.) (Preset temp.)

ON

OFF

ON

Compressor

OFF

ON

4-way valve

Outdoor fan

Fig. 7-2-6

ON

display

OPERATION

(2) The microcontroller turns the compressor on and

off at the regular intervals (4 to 6 minutes).While
the compressor is turning off, the indoor fan motor
operates in the SUPER LOW position.
The pattern of operation depending on the relation
between room temperature and preset
temperatures is shown in Fig. 7-2-5.

Room temp.

Preset temp.+1
Preset temp.

Compressor
Outdoor fan

Indoor fan

ON ON ON ON

OFF OFF OFF

L*SL

*

Super Low

L

LSLL

SL

Fig. 7-2-5

(3) [FAN] button on the remote control is set to AUTO

only.

(2) When [FAN] button is set to AUTO, the indoor fan

motor operates as shown in Fig. 7-2-7.When
[FAN] button is set to LOW, LOW

+

, MED, MED+ or

HIGH, the motor operates with a constant air flow.

Preset

temp.

°C

0

-0.5

-1

-1.5

-2

−

-5.0

-5.5

[FAN AUTO]

(Room temp.) (Preset temp.)

L
*1

*2

+

M

H

*1, *2 : The values marked with *1 and *2 are

calculated and controlled by the difference in
motor speed between M+ and L.

Fig. 7-2-7 Setting of air flow [FAN:AUTO]

(4) The Hi POWER operations cannot be set.

− 28 −

FILE NO. SVM-04022

(3) The indoor heat exchanger restricts revolving

speed of the fan motor to prevent a cold draft.
The upper limit of the revolving speed is shown in

in Fig. 7-2-8 and Table 7-2-1.

RAS-13NKHD Series

°C

424134

33

292821

20

*2

A+4

A+4

A

−

8

A− 8

*6 *5

Indoor heat exchanger temperature

AUTO

*4

*3

SL

SL*1

Stop

Manual
(One of 5 steps)

−

L H (Up to
seting speed)

RAS-10NKHD Series
RAS-07NKHD Series

464534

33

323121

20

°C

AUTO

*4

Manual
(One of 5 steps)

L

−

H (Up to

seting speed)

7-2-5. Automatic operation

([MODE] button on the remote control is set
to the automatic operation.)

(1) One of 3 operations (Cooling, Fan only or Heating)

is selected according to difference between the
preset temperature and the room temperature at
which the automatic operation has started, as
shown in Fig. 7-2-9.The Fan only operation
continues until the room temperature reaches a
level at which another mode is selected.

(2) Temporary Auto

When the [ RESET ] button on the indoor unit
is pushed, the preset temperature is fixed at 24°C
and the indoor unit is controlled as shown in
Fig. 7-2-9.

°C

Cooling operation

The louver moves to the position same
as Hi POWER operation.

+4

Cooling operation

0

*3

SL

*2

A+4

A+4

A

−

8

A

−

8

*6 *5

Indoor heat exchanger temperature

SL*1

Stop

Fig. 7-2-7 Cold draft preventing control

NOTES :

*1: The fan stops for 2 minutes after thermostat-OFF.
*2: A is 24°C when the preset temperature is 24°C or

more and A is the preset temperature when it is

under 24°C.
*3: SL means Super Low.
*4: Calculated from difference in motor speed

between SL and H.
*5 and *6:

Fan *5 *6
speed Starting period Stabilized period

AUTO Up until 12 minutes

Manual Room temperature
(L H) < Preset temperature

−

•

passed after starting
the unit

•

From 12 to 25 minutes
passed after starting
the unit and room
temperature is 3°C
lower than preset
temperature

•

•

Table 7-2-1

−

4°C

•

From 12 to 25 minutes
passed after starting
the unit and room
temperature is
between preset
temperature and 3°C
lower than preset
temperature
25 minutes or more

•

passed after starting
the unit

Room temperature

•

Preset temperature

−

3.5°C

Fan only operation

−

−

1

Heating operation

NKHD-Series NKD-Series

(Room temp.) (Preset temp.)

Fig. 7-2-9

7-2-6. Plasma Air-Purifier (PAP) operation.

Plasma Air-Purifier is able to operate together with
other operations mode of air conditioner by pressing
[PAP] button to turn ON/OFF the Plasma Air-Purifier
while other mode is on operation.
Plasma Air-Purifier is able to operate individual by
pressing [PAP] button to turn ON/OFF instead of
pressing [

For pressing the [

conditioner and Plasma Air-Purifier ON/OFF at the
same time. (depends on presetting before turning off.)

When [PAP] button is pressed,
on the display of the remote control and the Plasma
Air-Purifier operates as follows.

] button.

] button is able to turn both air

mark is indicated

−

−

29

FILE NO. SVM-04022

(1) Operation flow chat.

Less than 1 hour

1

Air-Purlfier OFF

Error after 1 minute

5

PAP LED ON

Air-Purifier OFF

6

10 minutes

8
9

!

PAP

START

OPERATION LED ON

PAP LED ON

Indoor fan ON

2

Air-Purlfier ON

Operation confirm

PAP LED ON

Air-Purifier ON

7

FILTER LED ON

Air-Purifier OFF

Reset by

1. [RESET] button

2. [FILTER] button

1 hour later

Error within 1 minute

No error

500 hours

3

FILTER LED ON

Air-Purifier OFF

Checking

Air-Purifier insertion
Inlet-Grlll assembly
Micro switch
Hi voltage unit

Reset by

1. [RESET] button

2. [FILTER] button

3. Turn unit OFF/ON

4-1 & 4-2

4-3

Case

Descriptions

In case of the first operation, after circuit breaker turns OFF/ON or after reset by case No. 4-1, 4-2, 8 and 9.

1&2

The Air-Purifier will operates after 1 hour.
For daily used, without turning OFF circuit breaker, Air-Purifier operates immediately.
By using short timer function of remote control*, Air-Purifier operates immediately.

3

4-1

4-2

4-3

5

6

7

8
9
!

In case of some error occurs within 1 minute, the above items need to be checked.
Case no 3, reset by [RESET] button on the indoor unit. Then Air-Purifier will operate again after 1 hour.
Case no 3, reset by [FILTER] button on the remote control. Then Air-Purifier will operate again after 1 hour.
Case no 3, reset by turning OFF the unit and turning ON again. Then Air-Purifier operates immediately.
In case of some error occurs after 1 minute. Air-Purifier will turn OFF but in contrast, PAP LED will keep turning

ON continuously.
Case no 5, the Air-Purifier will operate again after 10 minute.
After complete 500 hours operation, FILTER LED will turn ON and Air-Purifier will turn OFF. In addition, Air-Purifier

should be cleaned.
Case no 7, reset by [RESET] button on the indoor unit, and Air-Purifier will operate again after 1 hour.
Case no 7, reset by [FILTER] button on the remote control, and Air-Purifier will operate again after 1 hour.
Case no 7, can not reset by turning unit OFF and ON.

* Short timer is the function of the remote control that activates the setting for the sudden operation. This

function can be set as shown below.

1. Press [

] button to turn the unit OFF.

2. Use the tip of the pencil to push the [CHECK] button and hold, “00” will show on display, then press [SET]
button to make “00” disappear.

3. Press [

] button again to turn the unit ON.

4. When short timer is activated, all setting on the remote operates immediately, Besides, all LED turns ON
continuously for 2 seconds.

– 30 –

FILE NO. SVM-04022

(2) The indoor fan motor and Plasma Air-Purifier operation.

• When Plasma Air-Purifier has been operated with other operation of air conditioner mode (Fan only, AUTO,
Cooling, Dry or Heat). The speed revolution of indoor fan is based upon the operated mode of air conditioner.
In fact, Plasma Air-Purifier works continuously.

• When the Plasma Air-Purifier is activated individually and the fan speed is set to LOW, LOW+, MED, MED+, or
HIGH, the speed revolution of the indoor fan will be constant. In fact, Plasma Air-Purifier works continuously.

Moreover, when the Plasma Air-Purifier is activated individually and the fan speed is set to AUTO, the speed
revolution of the indoor fan and the operation of Plasma Air-Purifier is shown as the fig. 7-2-10

Plasma Air-Purifier

Revolution

speed of the

indoor fan.

ON

OFF

M

L

SL

ON 5 min

OFF 10 min

15 min 30 min 45 min 60 min

ON 5 min

OFF 10 min

Operation time

Fig. 7-2-10

– 31 –

FILE NO. SVM-04022

7-3.Hi POWER Mode

([Hi POWER] button on the remote
control is pressed.)

When [Hi POWER] button is pressed while the indoor
unit is in Auto, Cooling or Heating operation, Hi
POWER mark is indicated on the display of the remote
control and the unit operates as follows.

(1) Automatic operation

The indoor unit operates in according to the

•

current operation.

(2) Cooling operation

• The setting temperature drops 3°C.
(The value of the setting temperature on the
remote control does not change.)

• If the room temperature is higher than the
setting temperature by 3.5°C or more, the
horizontal louver moves to the Hi POWER
position automatically. Then when the room
temperature is 1°C less than the setting
temperature the horizontal louver returns
automatically.

• FAN speed : [AUTO]
If the room temperature is higher than the
setting temperature by 3.5°C or more, the air
conditioner operates at maximum airflow level.
If the room temperature is higher than the
setting temperature by less than 3.5°C, the air
conditioner operates at normal airflow level.

• FAN speed : One of 5 levels
If the room temperature is higher than the
setting temperature by 3.5°C or more, the air
conditioner operates at higher consecutive
airflow level. If the room temperature is higher
than the setting temperature by less than 3.5°C,
the air conditioner operates at normal airflow
level.

(3) Heating operation (NKHD Series only)

The preset temperature increases 2°C,

•

(The value of the preset temperature on the
remote control does not change.)
The indoor unit operates in normal heating

•

mode except the preset temperature is higher
(+2°C).

(4) The Hi POWER mode can not be set in Dry or Fan

only operation.

ı

7-4.High-Temperature Limit Control

(NKHD Series only)

The microcontroller detects the indoor heat exchanger
temperature to prevent pressure of a refrigerating cycle
from increasing excessively.
The compressor and outdoor fan motor are controlled
as shown in Fig. 7-4-1.

Compressor

OFF

ON

ON

Outdoor fan

OFF

OFF

ON

Heat exchanger
temp.

(°C)
60

53

52

Fig. 7-4-1

7-5.Low-Temperature Limit Control

The microcontroller detects the indoor heat exchanger
temperature to prevent the indoor heat exchanger from
freezing.
The compressor and outdoor fan motor are controlled
as shown in Fig. 7-5-1 and 7-5-2.

RAS-13NKHD Series
RAS-13NKD Series

Heat exchanger
temperature

(°C)

6

2

Fig. 7-5-1

RAS-10NKHD Series, RAS-07NKHD Series
RAS-10NKD Series, RAS-07NKD Series

Heat exchanger
temperature

(°C)

7

5

Compressor Outdoor fan

ON

Less than 2°C continues

for 5 minutes

OFF

Compressor

Less than 5°C continues

Outdoor fan

ON

for 5 minutes

OFF

Fig. 7-5-2

32

−

−

FILE NO. SVM-04022

7-6. Defrost Operation (NKHD Series only)

During the heating operation, the outdoor heat
exchanger temperature goes down and sometimes it is
frozen.
In this case, the air conditioner stops the heating
operation and starts the defrost operation to melt ice.

7-6-1. Condition to start the defrost operation

The defrost operation starts whichever below
conditions are satisfied.

(1) When the cumulative compressor operating time is

longer than 40 or 90 minutes and difference
between the indoor heat exchanger temperature
and the room temperature is less than the
specified value. (This value is decided by the
microprocessor.) (Control example is shown in
Fig. 7-6-1. In case of B or C, the defrost operation
starts.)

(2) When the current limit control or the high

temperature limit control is performed for total of
90 minutes.

<In case of C>

(1) The heating operation is performed for at least 90

minutes.

(2) The defrost operating time is 10 minutes.

7-6-3. Ending condition at defrost operation

(1) When the compressor current becomes 7.5A or

more during defrost operation, the defrost
operation stops and the heating operation restarts.
(The current sensor detects the compressor
current.)

(2) The defrost operation continues for at most

6 minutes or 10 minutes.

D

A

Indoor heat exchanger temp

- Room temp

Fig. 7-6-1 (Indoor fan speed : M)

7-6-2. Defrost operation time control
<In case of B>

(1) The heating operation is performed for at least

40 minutes.

(2) The maximum defrost operating time is 6 minutes.

The defrost operating time for the 4th cycle is

10 minutes. (When the outdoor temperature is
very low, however, the defrost operating time is
10 minutes.)

minutes

minutes

40

B

C

minutes

40

minutes

40

40

Cumulative
compressor
operating time

Heating

Defrost

Heating

Max 6 minutes

Defrost

Heating

1 cycle

Fig. 7-6-2

Defrost

Heating

10 minutes

Defrost

− 33 −

7-7. Current Limit Control (NKHD Series only)

The microcontroller detects the input current so as to
prevent it exceeds a specified value by means of
controlling the outdoor fan control as described in (1)
and (2).

(1) Current limit control (Cooling operation)

Control is performed as shown below by detecting
the compressor operating current with a current
sensor (C.T).

RAS-13NKHD Series / RAS-10NKHD Series, RAS-07NKHD Series

FILE NO. SVM-04022

Input current

13.5A/ 19.2A I4

12.5A/ 17.8A I3

Fig. 7-7-1

(2) Current limit control (Heating operation)

Control is performed as shown in Fig. 7-7-2

RAS-13NKHD Series / RAS-10NKHD Series, RAS-07NKHD Series

Input current

13.5A/ 19.2A I4

12.5A/ 17.8A I3

Compressor Outdoor fan

More than I4 continues for 3 seconds

OFF

More than I3 continues for 5 seconds

OFF

ON

Compressor Outdoor fan

More than I4 continues for 3 seconds

OFF

More than I3 continues for 5 seconds

OFF

10A/ 15.6A I2

9A/ 15.0A I1

ON OFF

ON

Fig. 7-7-2

Remark :

This function is available only for heat pump model (Cooling models have no a current sensor (C.T.)).

− 34 −

FILE NO. SVM-04022

7-8.Auto Restart Function

The indoor unit is equipped with an automatic
restarting function which allows the unit to restart
operating with the set operating conditions in the event
of power supply being accidentally shut down. The
operation will resume without warning three minutes
after power is restored.
This function is not set to work when shipped from the
factory. Therefore it is necessary to set it to work.

7-8-1. How to set auto restart function

To set the auto restart function, proceed as follows:
The power supply to the unit must be on; the function
will not set if the power is off.
Push the [RESET] button located in the center of the
front panel continuously for three seconds.
The unit receives the signal and beeps three times.
The unit then restarts operating automatically in the
event of power supply being accidentally shut down.

When the unit is on standby (Not operating)

Operation Motions

Push [RESET] button for more The unit is on standby.
than three seconds.

The unit starts to operate. The green lamp is on.

0

RESET Hi POWER FILTER PAP TIMER

3S

The unit beeps three times The lamp changes from
and continues to operate. green to orange.

→

→

If the unit is not required to operate at this time, push [
once more or use the remote control to turn it off.

After approx. three seconds,

RESET

] button

When the unit is in operation

Operation Motions

Push [RESET] button for more The unit is in operation. The green lamp is on.
than three seconds.

RESET Hi POWER FILTER PAP TIMER

The unit stops operating. The green lamp is turned off.

0

3S

The unit beeps three times.
If the unit is required to operate at this time, push [

→

→

After approx. three seconds,

RESET

once more or use the remote control to turn it on.

• While this function is being set, if the unit is in
operation, the orange lamp is on.

• While the filter check lamp is on, the [RESET]
button has the function of filter reset button.

• This function can not be set if the timer operation
has been selected.

• When the unit is turned on by this function, the
louver will not swing even though it was swinging
automatically before shutting down.

] button

– 35 –

7-8-2. How to cancel auto restart function

To cancel auto restart function, proceed as follows:
Repeat the setting prodedure: the unit receives the
signal and beeps three times.
The unit will be required to be turned on with the
remote control after the main power supply is turned
off.

When the unit is on standby (Not operating)

Operation Motions

Push [RESET] button for more The unit is on standby.

→

than three seconds.

The unit starts to operate. The orange lamp is on.

→

FILE NO. SVM-04022

After approx. three seconds,

The unit beeps three times The lamp changes from
and continues to operate. orange to green.

If the unit is not required to operate at this time, push [

RESET

RESET Hi POWER FILTER PAP TIMER

0

3S

once more or use the remote control to turn it off.

When the unit is in operation

Operation Motions

Push [RESET] button for more The unit is in operation. The orange lamp is on.

→

than three seconds.

The unit stops operating. The orange lamp is turned off.

→

After approx. three seconds,

0

RESET Hi POWER FILTER PAP TIMER

3S

• While this function is being set, if the unit is in

operation, the orange lamp is on.

7-8-3. Power failure during timer operation

When the unit is in Timer operation, if it is turned off
because of power failure, the timer operation is
cancelled. Therefore, set the timer operation again.

The unit beeps three times.
If the unit is required to operate at this time,

push [

once more or use the remote control to turn it on.

7-9.Filter Check Lamp

When the operation time of Plasma Air-Purifier
reaches 500 hours, the filter check lamp indicates.
After cleaning the Plasma Air-Purifier, turn off the filter
check lamp.

7-9-1. How to turn off filter check lamp

RESET

] button

] button

Press [FILTER] button on the remote control.
OR push [RESET] button on the indoor unit.

Note :

If [RESET] button is pushed while the filter check lamp
is not indicating, the indoor unit will start the Automatic
Operation.

– 36 –

FILE NO. SVM-04022

7-10.Self-Cleaning function

Self-Cleaning function is designed to reduce humidity that causes mold to form inside the air conditioning unit.
This advanced, efficient system reduces moisture in the coil. When air conditioner is turned off, the internal fan
activates and dries the moisture in the coil for 20 minutes, then it turns off automatically.

Operation display ON OFF OFF

FCU fan

FCU louver OPEN CLOSE CLOSE

Timer display

Compressor

CDU fan ON or OFF

rpm is depend on presetting. rpm is SUPER LOW speed.

depend on presetting of timer function. depend on presetting of timer function.

depend on presetting per room temperature.

depend on presetting per room temperature.

Cool mode or dry mode

operation more than 10 mins.

ON ON

ON or OFF

ON or OFF

8

Self-Cleaning mode

Turn off by remote controller or

timer-off function.

ON

OFF OFF

OFF OFF

8

operate 20 mins.

Automatically turn-off.

• The Self-Cleaning function is set as default at ex-factory.

• Self-Cleaning operation can stop manually by press [

7-10-1. How to cancel Self-Cleaning function

To cancel the Self-Cleaning function, proceed as
follows:

•

Press [RESET] button one time or use remote
control to turn on air conditioner. The OPERATION
display will show in orange color (When AUTO­RESTART is ON) or green color (When AUTO­RESTART is OFF).

•

Hold down the [RESET] button for more than
20 seconds. (The air conditioner will stop suddenly
when the [RESET] is pressed but keep holding it
continue. The will beep 3 times in the first
3 seconds but it is not related to Self-Cleaning
function)

•

After holding about 20 seconds, the air conditioner
will beep 5 times without any blinking of display.

•

The Self-Cleaning Operation had been cancelled.

] button of the remote control one more time.

7-10-2. How to set Self-Cleaning function.

To set the Self-Cleaning function, proceed as follows.

•

Press [RESET] button one time or use remote
control to turn on air conditioner. The OPERATION
display will show in orange color (When AUTO­RESET is ON) or green color (When AUTO­RESTART is OFF).

•

Hold down the [RESET] button for more than
20 seconds. (The air conditioner will stop suddenly
when the [RESET] is pressed but keep holding it
continue. Then will beep 3 times is the first 3
seconds but it is not related to Self-Cleaning
function)

•

After holding about 20 seconds, the air conditioner
will beep 5 times and OPERATION display blinks
5 times.

•

The Self-Cleaning function had been set.

OFF

ON or OFF

-

Operation time

Remarks

•

Per setting of Self-Cleaning function above, AUTO­RESTART function had been cancelled. To set
AUTO-RESTART again, please follow item 7-8-1.

Remarks

•

Per setting of Self-Cleaning function above, AUTO­RESTART function had been cancelled. To set
AUTO-RESTART again, please follow item 7-8-1.

RESET Hi POWER FILTER PAP TIMER

– 37 –

FILE NO. SVM-04022

8. INSTALLATION PROCEDURE

8-1.Safety Cautions

For general public use

Power supply cord of parts of appliance for Indoor use shall be at least polychloroprene sheathed flexible
cord (design H07 RN-F), or cord designation 245 IEC66.

CAUTION

This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a
contact separation of at least 3 mm.
If this is not possible, a power supply plug with earth must be used. This plug must be easily accessible after
installation. The plug must be disconnected from the power supply socket in order to disconnect the
appliance completely from the mains.

To Disconnect the Appliance from the Main Power Supply

DANGER

• FOR USE BY QUALIFIED PERSONS ONLY.

• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE

ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED
WRONGLY, ELECTRIC PARTS MAY BE DAMAGED.

• CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION.

• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS.

FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.

• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT
WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEATORS,
FURNACE, STOVES, ETC.

• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY
CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT WITH ANY OTHER GASEOUS BODY INTO
THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE
GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT
RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS.

• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE
INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS
IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS.

WARNING

• Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock
switches.

• Do not install in a place which cannot bear the weight of the unit.
Personal injury and property damage can result if the unit falls.

• Before doing the electrical work, attach an approved plug to the power supply cord.
Also, make sure the equipment is properly earthed.

• Appliance shall be installed in accordance with national wiring regulations.
If you detect any damage, do not install the unit. Contact your TOSHIBA dealer immediately.

CAUTION

• Exposure of unit to water or other moisture before installation could result in electric shock.
Do not store it in a wet basement or expose to rain or water.

• After unpacking the unit, examine it carefully for possible damage.

• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify

the noise level of the unit or where noise and discharged air might disturb neighbors.

• To avoid personal injury, be careful when handling parts with sharp edges.

• Please read this installation manual carefully before installing the unit. It contains further important instruc-

tions for proper installation.

– 38 –

FILE NO. SVM-04022

REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER

Please make absolutely sure that the installation of this appliance is reported to the local power supplier
before installation. If you experience any problems, or if the installation is not accepted by the supplier, the
service agency will take adequate countermeasures.

– 39 –

8-2.Installation Diagram of Indoor and Outdoor Units

170 m

m

or m

ore

Hook

65 mm or more

1 Installation

plate

FILE NO. SVM-04022

For the rear left and left
piping

Wall

4 Zeolite-plus

filter

Before installing the
wireless remote control

• With the remote control cover

open, load the batteries supplied
correctly, observing their
polarity.

2 Wireless remote control

Cover

A

ir

f

ilt

(A

tta

c

h

to

th

e

fr

o

n

t p

a

6 Plasma air purifier

2 Wireless remote control

Ho

ok

170 mm or more

Insert the cushion between
the indoor unit and wall,

er

and tilt the indoor unit for
better operation.

Shield

n

e

l.)

pipe

Do not allow the drain hose
to get slack.

Cut the piping hole
sloped slightly

Make sure to run the drain
hose sloped downward.

The auxiliary piping can be
connected the left, rear left,
rear right, right, bottom right
or bottom left.

3 Batteries

13 series 07, 10 series

A 600 mm 400 mm
B 100 mm 45 mm

1

00 m

Right

Vinyl tape
Apply after
carrying out a

or more

B mm

600 mm or more

m

o

r m

ore

re

o

m

r

o

m

m

A

drainage test.

Extension
drain hose

(Option:
RB–821SW)

60

0

m

m

o

r m

ore

Saddle

Rear right

Rear left

Bottom right

Bottom left

Insulate the refrigerant
pipes separately with
insulation, not together.

6 mm thick heat resisting
polyethylene foam

Left

– 40 –

8-3.Installation

8-3-1. Optional installation parts

FILE NO. SVM-04022

Part

Parts name

Code

Refrigerant piping
Liquid side : ∅6.35 mm

A

Gas side : ∅9.52 mm (07, 10 series)
Gas side : ∅12.70 mm (13 series)

Pipe insulating material

B

(polyethylene foam, 6 mm thick)
Putty, PVC tapes

C

<Fixing bolt arrangement of outdoor unit>

125 mm115 mm

310 mm

7 mm

32.5 mm

73 mm

Air outlet

30

∅

600 mm

Air inlet

102 mm

90 mm

Drain outlet

Q’ty

One

each

1

One

each

275 mm

60 mm

Air outlet

500 mm

97 mm

Air inlet

Drain outlet

RAS-10, 13 Series

Fig. 8-3-1

RAS-07 Series

• Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind.

• Use ∅8 mm or ∅10 mm anchor bolts and nuts.

– 41 –

8-3-2. Accessory and installation parts

FILE NO. SVM-04022

Part

No.

Part name (Q’ty)

1

Installation plate x 1

2

Wireless remote control x 1

Others

Name

Part

No.

3

Battery x 2

4

Zeolite-plus filter x 1

Part name (Q’ty)

Part

No.

Part name (Q’ty)

5

Mounting screw ∅4 x 25 s x 6

6

Plasma air purifier x 1

Owner’s manual

Installation manual

This model is not equipped with an extension drain hose.

Option :

For the extension drain hose, use an optionally available RB-821SW or commercially available one.

– 42 –

FILE NO. SVM-04022

∅

8-4.Indoor Unit

8-4-1. Installation place

• A place which provides the spaces around the
indoor unit as shown in the above diagram.

• A place where there is no obstacle near the air inlet
and outlet.

• A place that allows easy installation of the piping to
the outdoor unit.

• A place which allows the front panel to be opened.

CAUTION

• Direct sunlight to the indoor unit’s wireless

receiver should be avoided.

• The microprocessor in the indoor unit should not

be too close to RF noise sources.
(For details, see the owner’s manual.)

<Remote control>

• A place where there are no obstacles such as a
curtain that may block the signal from the indoor
unit.

• Do not install the remote control in a place exposed
to direct sunlight or close to a heating source, such
as a stove.

• Keep the remote control at least 1 m apart from the
nearest TV set or stereo equipment. (This is
necessary to prevent image disturbances or noise
interference.)

• The location of the remote control should be
determined as shown below.

Remote
control

(Top view)

Indoor unit

Reception
range

* : Axial distance

Fig. 8-4-1

45

°

5 m

°

Remote control

m

5

45

Indoor unit

(Side view)

7 m

°

75

Reception
range

8-4-2. Cutting a hole and mounting installation

plate

<Cutting a hole>

When installing the refrigerant pipes from the rear.

Pipe
hole

65 mm

The center of the pipe
hole is above the arrow.

100 mm

Fig. 8-4-2

1. After determining the pipe hole position on the
mounting plate (A), drill the pipe hole (∅65 mm) at
a slight downward slant to the outdoor side.

NOTE

• When drilling a wall that contains a metal lath, wire
lath or metal plate, be sure to use a pipe hole brim
ring sold separately.

<Mounting the installation plate>

For installation of the indoor unit, use the paper pattern
on the back.

62

Installation
plate

* 7 m

170

85

Pipe hole

Indoor unit

Hook

Thread

Hook

Weight

Hook

Pipe hole

5 Mounting screw

82.5

1

– 43 –

Fig. 8-4-3

FILE NO. SVM-04022

<When the installation plate is directly mounted on
the wall>

1. Securely fit the installation plate onto the wall by
screwing it in the upper and lower parts to hook up
the indoor unit.

2. To mount the installation plate on a concrete wall
with anchor bolts, utilize the anchor bolt holes as
illustrated in the above figure.

3. Install the installation plate horizontally in the wall.

CAUTION

When installing the installation plate with a
mounting screw, do not use the anchor bolt hole.
Otherwise the unit may fall down and result in
personal injury and property damage.

Installation plate
<Keep horizontal direction>

Anchor
bolt

Projection

55

5

Mounting

55

screw

∅

4 x 25

15 mm or less

ss

s

ss

5 mm dia. hole

Clip anchor
(local parts)

Fig. 8-4-4

8-4-3. Electrical work

1. The supply voltage must be the same as the rated
voltage of the air conditioner.

2. Prepare the power source for exclusive use with the
air conditioner.

CAUTION

• This appliance can be connected to the mains in
either of the following two ways.
(1) Connection to fixed wiring:

A switch or circuit breaker which disconnects
all poles and has a contact separation of at
least 3 mm must be incorporate in the fixed
wiring. An approved circuit breaker or
switches must used.

(2) Connection with power supply plug:

Attach power supply plug with power cord
and plug it into wall outlet. An approved
power supply cord and plug must be used.

NOTE

• Ensure all wiring is used within its electrical rating.

RAS-10NKHD-E

Model

Power source 50Hz, 220 − 240 V Single phase
Maximum

running current
Plug socket &

fuse rating

RAS-10NKD-E
RAS-07NKD-E

7.5A 12A

RAS-13NKHD-E

RAS-13NKD-E

16A

CAUTION

Failure to firmly install the unit may result in
personal injury and property damage if the unit falls.

• In case of block, brick, concrete or similar type
walls, make 5 mm dia. holes in the wall.

• Insert clip anchors for appropriate mounting screws

5.

NOTE

• Secure four corners and lower parts of the
installation plate with 4 to 6 mounting screws to
install it.

Power cord 1 mm

2

or more

1.3 mm

2

or more

– 44 –

FILE NO. SVM-04022

8-4-4. Wiring connection
<How to connect the power cord>
For the air conditioner that does not have power

cord, connect a power cord to it as mentioned
below.

(1) Open the air inlet grille upward.
(2) Remove the four screws securing the front panel.
(3) Slightly open the lower part of the front panel then

pull the upper part of the front panel toward you to
remove it from the rear plate.

(4) After removing the front panel, remove the power

cord connect cover and the cord camp.

(5) Connect and secure the power supply cord and

secure the cord camp and the power connect

cover.
(6) Put the power supply cord through the notch.
(7) Be sure to smooth the notch with a file, etc.

Air Inlet grille

Front panel

<Stripping length of the power cord>

40 mm

10 mm

N
L

10 mm

30 mm

Fig. 8-4-6

NOTE

• Use stranded wire only.

• Wire type : More than 1.5 mm

245 IEC66) or 1.3 mm

2

2

(H07RN-F or

(AWG-16)

<Taking out the power cord>

Earth line

Notch

2

1

3

Fig. 8-4-7

Put the power supply cord through the notch.

Fig. 8-4-5

– 45 –

FILE NO. SVM-04022

1 2

3

4

1

2

<How to connect the connecting cable>
Wiring of the connecting cable can be carried out

without removing the front panel.

1. Remove the air inlet grille.

Open the air inlet grille upward and pull it toward
you.

2. Remove the terminal cover and cord clamp.

3. Insert the connecting cable (according to the local

cords) into the pipe hole on the wall.

4. Take out the connecting cable through the cable

slot on the rear panel so that it protrudes about
15 cm from the front.

5. Insert the connecting cable fully into the terminal

block and secure it tightly with screws.

6. Tightening torque : 1.2 N·m (0.12 kgf·m)

7. Secure the connecting cable with the cord clamp.

8. Fix the terminal cover, rear plate bushing and air

inlet grille on the indoor unit.

CAUTION

• Be sure to refer to the wiring system diagram
labeled inside the front panel.

• Check local electrical cords and also any specific
wiring instructions or limitations.

For RAS-07,10,13NKD-E

Terminal
cover

Connecting
cable

about 15 cm

Screw

10 mm

Stripping length of the connecting cable

Cord clamp

Screw

Screw

Fig. 8-4-10

60 mm

10 mm

50 mm

1

2

Connecting cable

Earth line

Terminal block

Earth line

For RAS-07,10,13NKHD-E

Cord clamp

Screw

10 mm

10 mm

Connecting
cable

about 15 cm

Terminal
cover

Screw

Stripping length of the connecting cable

1

2

3

Screw

Fig. 8-4-8

80 mm

70 mm

10 mm

50 mm

4

Connecting cable

Earth line

Terminal block

Earth line

Fig. 8-4-11

NOTE

ı • Use stranded wire only.

• Wire type : H07RN-F or 245 IEC66 (More than

2.0 mm

2

)

<How to install the air inlet grille on the indoor unit>

• When attaching the air inlet grille, the contrary of
the removed operation is performed.

Fig. 8-4-12

Fig. 8-4-9

– 46 –

FILE NO. SVM-04022

8-4-5. Piping and drain hose installation
<Piping and drain hose forming>

* Since dewing results in a machine trouble, make

sure to insulate both the connecting pipes. (Use
polyethylene foam as insulating material.)

Rear right

Rear left

Bottom left

Changing

Left
Bottom right
Right

Die-cutting

Front panel slit

drain hose

Piping preparation

1. Die-cutting Front panel slit

For leftward connection, cut out slit on the left side of
the front panel. (A knife will produce splinters, so use
nippers.)

2. Changing drain hose

For leftward connection, bottom leftward connection
and rear leftward connection’s piping, it is necessary to
change the drain hose and drain cap.

How to remove the drains cap

Clip drain cap by needle-nose plier, and pull out.

How to fix the drains cap

1) Insert hexagonal wrench (4 mm) in a center
head.

4 mm

Fig. 8-4-15

2) Firmly insert drains cap.

No gap

Do not apply lubricating oil
(refrigerant machine oil) when
inserting the drain cap.
Application causes deterioration

Insert a hexagon
wrench (4 mm)

and drain leakage of the plug.

Fig. 8-4-16

CAUTION

Firmly insert the drain hose and drain cap; otherwise,
water may leak.

<In case of right or left piping>

• After scribing slits of the front panel with a knife or a
making-off pin, cut them with a pair of nippers or an
equivalent tool.

Fig. 8-4-13

How to install the drain hose

Firmly insert drain hose connecting part until hitting on
a heat insulator.

Heat insulator

Drain hose

Fig. 8-4-14

Slit

Fig. 8-4-17

<In case of bottom right or bottom left piping>

• After scribing slits of the front panel with a knife or a
making-off pin, cut them with a pair of nippers or an
equivalent tool.

Slit

Fig. 8-4-18

– 47 –

FILE NO. SVM-04022

<Left-hand connection with piping>

Bend the connecting pipe so that it is laid within 43 mm
above the wall surface. If the connecting pipe is laid
exceeding 43 mm above the wall surface, the indoor
unit may unstably be set on the wall. When bending the
connecting pipe, make sure to use a spring bender so
as not to crush the pipe.

Bend the connection pipe within a radius of 30 mm.

To connect the pipe after installation of the unit (figure)

(To the forefront of flare)

270 mm

170 mm

R 30 mm (Use polisin (polyethylene)

43 mm

core or the like for bending pipe.)

0

8

Liquid side

Gas side

Outward form of indoor unit

Use the handle of screwdriver, etc.

Fig. 8-4-19

8-4-6. Indoor unit fixing

1. Pass the pipe through the hole in the wall, and hook
the indoor unit on the installation plate at the upper
hooks.

2. Swing the indoor unit to right and left to confirm that
it is firmly hooked up on the installation plate.

3. While pressing the indoor unit onto the wall, hook it
at the lower part on the installation plate. Pull the
indoor unit toward you to confirm that it is firmly
hooked up on the installation plate.

1

2

Hook

Hook here

1 Installation

plate

Press

(unhook)

Fig. 8-4-20

• For detaching the indoor unit from the installation
plate, pull the indoor unit toward you while pushing
its bottom up at the specified parts.

NOTE

If the pipe is bent incorrectly, the indoor unit may
unstably be set on the wall.
After passing the connecting pipe through the pipe
hole, connect the connecting pipe to the auxiliary pipes
and wrap the facing tape around them.

CAUTION

• Bind the auxiliary pipes (two) and connecting
cable with facing tape tightly. In case of leftward
piping and rear-leftward piping, bind the auxiliary
pipes (two) only with facing tape.

Indoor unit

Auxiliary pipes

Installation plate

• Carefully arrange pipes so that any pipe does not
stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and
connecting pipes to each other and cut off the
insulating tape wound on the connecting pipe to
avoid double-taping at the joint, moreover, seal
the joint with the vinyl tape, etc.

• Since dewing results in a machine trouble, make
sure to insulate both the connecting pipes. (Use
polyethylene foam as insulating material.)

• When bending a pipe, carefully do it, not to crush it.

Connecting cable

PushPush

Fig. 8-4-21

– 48 –

FILE NO. SVM-04022

8-4-7. Drainage

1. Run the drain hose sloped downwards.

NOTE

• Hole should be made at a slight downward slant on
the outdoor side.

Do not form the
Do not rise the
drain hose.

50 mm
or more

Do not put
the drain
hose end
into water.

drain hose into

a wavy shape.

Do not put
the drain
hose end in
the drainage
ditch.

Fig. 8-4-22

2. Put water in the drain pan and make sure that the
water is drained out of doors.

3. When connecting extension drain hose, insulate the
connecting part of extension drain hose with shield
pipe.

Shield pipe

Drain hose

Inside the room

Extension drain hose

Fig. 8-4-23

CAUTION

Arrange the drain pipe for proper drainage from the
unit.
Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to drain
water collected from dew, which forms on the back of
the indoor unit, to the drain pan.
Therefore, do not store the power cord and other parts
at a height above the drain guide.

8-5.Outdoor Unit

8-5-1. Installation place

• A place which provides the spaces around the
outdoor unit as shown in the left diagram.

• A place which can bear the weight of the outdoor
unit and does not allow an increase in noise level
and vibration.

• A place where the operation noise and discharged
air do not disturb your neighbors.

• A place which is not exposed to a strong wind.

• A place free of a leakage of combustible gases.

• A place which does not block a passage.

• When the outdoor unit is to be installed in an

elevated position, be sure to secure its feet.

• An allowable length of the connecting pipe is up to
10 m (07, 10 series) or 15 m (13 series).

• An allowable height level is up to 5 m (07, 10 series)
or 6 m (13 series).

• A place where the drain water does not raise any
problem.

CAUTION

1. Install the outdoor unit without anything blocking
the air discharging.

2. When the outdoor unit is installed in a place
exposed always exposed to strong wind like a
coast or on a high storey of a building, secure
the normal fan operation using a duct or a wind
shield.

3. In particularly windy areas, install the unit such
as to avoid admission of wind.

4. Installation in the following places may result in
trouble.
Do not install the unit in such places.

• A place full of machine oil.

• A saline-place such as the coast.

• A place full of sulfide gas.

• A place where high-frequency waves are likely

to be generated as from audio equipment,
welders, and medical equipment.

Space for pipes

Fig. 8-4-2

Wall

4

Drain guide

– 49 –

Strong

wind

Fig. 8-5-1

FILE NO. SVM-04022

8-5-2. Refrigerant piping connection

1. Cut the pipe with a pipe cutter.

90°

Obliquity

Roughness

Fig. 8-5-2

2. Insert a flare nut into the pipe, and flare the pipe.

• Projection margin in flaring : A (Unit : mm)

A

Die

Pipe

Fig. 8-5-3

Outer dia.

of copper pipe

Rigid Imperial

A

6.35 0.5 to 1.0 1.0 to 1.5

9.52 0.5 to 1.0 1.0 to 1.5

Warp

Outer dia.

of copper pipe

Tightening torque

∅6.35 16 to 18 (1.6 to 1.8 kgf·m)
∅9.52 30 to 42 (3.0 to 4.2 kgf·m)

∅12.70 50 to 62 (5.0 to 6.2 kgf·m)

Flare at indoor unit side

Flare at outdoor unit side

Fig. 8-5-4

Mark line

(Unit : N·m)

12.70 0.5 to 1.0 1.5 to 2.0

<Tightening connection>

Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then
tighten the nut with a spanner and torque wrench as
shown in the figure.

CAUTION

• Do not apply excess torque.

• Otherwise, the nut may crack depending on the

conditions.

Fig. 8-5-5

Flare nutHalf union

Externally
threaded side

Use a wrench to secure.

Use a torque wrench to tighten.

Internally
threaded side

Fig. 8-5-6

CAUTION

• KEEP IMPORTANT 4 POINTS FOR PIPING
WORK

(1) Take away dust and moisture (Inside of the

connecting pipes.)
(2) Tight connection (between pipes and unit)
(3) Evacuate the air in the connecting pipes using

VACUUM PUMP.
(4) Check gas leak (connected points)

– 50 –

FILE NO. SVM-04022

8-5-3. Evacuating

After the piping has been connected to the indoor unit,
you can perform the air purge together at once.

AIR PURGE

Evacuate the air in the connecting pipes and in the
indoor unit using a vacuum pump. Do not use the
refrigerant in the outdoor unit.
For details, see the manual of the vacuum pump.

<Using a vacuum pump>

Be sure to use a vacuum pump with counter-flow
prevention function so that inside oil of the pump does
not flow backward into pipes of the air conditioner
when the pump stops.

1. Connect the charge hose from the manifold valve to
the service port of the gas side packed valve.

2. Connect the charge hose to the port of the vacuum
pump.

3. Open fully the low pressure side handle of the
gauge manifold valve.

4. Operate the vacuum pump to start evacuating.
Perform evacuating for about 15 minutes if the piping
length is 20 meters. (15 minutes for 20 meters)
(assuming a pump capacity of 27 liters per minute.)
Then confirm that the compound pressure gauge
reading is –101 kPa (–76 cmHg).

5. Close the low pressure side valve handle of gauge
manifold.

6. Open fully the valve stem of the packed valves
(both sides of Gas and Liquid).

7. Remove the charging hose from the service port.

8. Securely tighten the caps on the packed valves.

<Packed valve handling precautions>

• Open the valve stem all the way out; but do not try
to open it beyond the stopper.

• Securely tighten the valve stem cap with torque in
the following table:

Gas side 50 to 62 N·m
(∅12.70 mm) (5.0 to 6.2 kgf·m)

Gas side 30 to 42 N·m
(∅9.52 mm) (3.0 to 4.2 kgf·m)

Liquid side 16 to 18 N·m
(∅6.35 mm) (1.6 to 1.8 kgf·m)

Service port

9 to 10 N·m
(0.9 to 1.0 kgf·m)

Hexagonal wrench
is required.

m

4 m

Fig. 8-5-8

Compound pressure gauge

-101 kPa (-76 cmHg)

Handle Lo

Charge hose

Connecting pipe

Service port
(Valve core (Setting pin))

Packed valve at liquid side

Pressure gauge

Manifold valve

Charge hose

Vacuum pump
adapter for
counter-flow
prevention

Vacuum

pump

Packed valve at gas side

Fig. 8-5-7

Handle Hi
(Keep full closed)

– 51 –

FILE NO. SVM-04022

Selector Switch

LED Assembly

8-5-4. Wiring connection

1. Remove the valve cover from the outdoor unit.

2. Connect the connecting cable to the terminal as
identified with their respective matched numbers on
the terminal block of indoor and outdoor unit.

3. When connecting the connecting cable to the
outdoor unit terminal, make a loop as shown in the
installation diagram of indoor and outdoor unit, to
prevent water coming in the outdoor unit.

4. Insulate the unused cords (conductors) from any
water coming in the outdoor unit.Proceed them so
that they do not touch any electrical or metal parts.

<Stripping length of connecting cable>

For RAS-13/10/07UAH-E3

Terminal block

70 mm

10 mm

10 mm

Earth line

60 mm

Terminal
screw

Connecting
cable

Screw

Cord clamp

Earth
line

8-6. How to Set Remote Control Selector

Switch

When two indoor units ae installed in seperated rooms,
there is no need to change the selector switch.

<Remote control selector switch>

•

When two indoor units are installed in the same
room or the adjacent two rooms, they may be
controlled simultaneously with a single remote
control.To prevent this, set either unit and its
remote control to B setting. (Both units are set to A
setting before shipment.)
The remote control signal is not recived when the

•

indoor unit setting is different from the remote
control one.

1. Set the remote control selector switch with the
indoor unit.

1) Turn the circuit breaker of the main power switch off
before setting the selector switch.

2) Remove the Air inlet grille and Front panel.

3) Select the terminal of selector switch from
[A position] to [B position].

Fig. 8-5-9

For RAS-13/10/07UA-E3

Terminal block

10 mm

60 mm

Earth line

10 mm

50 mm

Terminal
screw

Connecting
cable

Screw

Fig. 8-5-10

CAUTION

• Wrong wiring connection may cause some
electrical parts burn out.

• Be sure to comply with local codes on running
the wire from indoor unit to outdoor unit (size of
wire and wiring method etc.)

• Every wire must be connected firmly.

Earth
line

Cord clamp

Fig. 8-6-1

NOTE

• Wire type: H07 RN-F or 245 IEC66 (2.0 mm2or
more)

− 52 −

FILE NO. SVM-04022

2. Set the remote control selector switch with the

remote control

[B] is indicated on the liquid crystal display when
setting remote control selector switch to B. [A] is
not indicated on the display even if the selector
switch is set to A.

1) Load the remote control with the batteries.

2) Press the [CHECK] button using something with

sharp point. (The preset temperature on the remote
control changes to [00].)

3) Press the [MODE] button while pressing the

[CHECK] button, [B] is indicted at the right of the
present temperature display.

• To reset the switch to the [A] setting, press the

[MODE] button again while pressing the [CHECK]
button.

A
B

8-7.Others

8-7-1. Gas leak test

Valve cover

Valve stem cap
connection

Service cap
connection

Fig. 8-7-1

• Check the flare nut connections, valve stem cap
connections and service port cap connections for
gas leak with a leak detector or soap water.

8-7-2. Test operation

To switch the TEST RUN (COOL) mode, press RESET
button for 10 sec.
(The beeper will make a short beep.)

TEMP

ECO

FAN

OFF

AUTO

PRESET

MEMO

1.3.5.9H

SLEEP

SET

FILTER

[MODE] button

PAP

MODE

HiPOWER

SWING

CLR

CLOCK

RESET

FIX

ON

CHECK

[CHECK] button

Fig. 8-6-2

3. Confirm that the indoor unit can operate with
the new setting.

RESET Hi POWER FILTER PAP TIMER

RESET button

Fig. 8-7-2

8-7-3. Auto restart setting

This product is designed so that, after a power failure,
it can restart automatically in the same operating mode
as before the power failure.

Information

The product was shipped with Auto Restart function
in the off position. Turn it on as required.

<How to set the auto restart>

• Press and hold the RESET button for about
3 seconds. After 3 seconds, the electronic beeper
makes three short beeps to tell you the Auto
Restart has been selected.

• To cancel the Auto Restart, follow the steps
described in the section Auto Restart Function of
the Owner’s Manual.

– 53 –

9. TROUBLESHOOTING CHART

FILE NO. SVM-04022

9-1.Troubleshooting Procedure

9-2-2. Incorrect cable connection between Indoor

and outdoor units

Follow the details of 9-2. Basic Chec k Items .
If there is no trouble corresponding to 9-2, check
whether or not there are faulty parts following
9-4. Self-Diagnosis by Remote Control.

The indoor unit is connected to the outdoor unit with
3 cables (Cooling Only model) or 5 cables (Heat Pump

model). Check that the indoor and outdoor units have

been properly connected with terminals assigned the

same numbers. If theconnectors are not properly

9-2.Basic Check Items

9-2-1. Power supply voltage

The line voltage must be A
within this range, the air conditioner may not operate
normally.

C 220 − 240 V. If it is not

connected, the outdoor unit will not operate normally,
or OPERATION lamp and TIMER lamp will blink (5Hz).

9-2-3. Program control

The microcontroller operates as shown in Table 9-2-1
to control the air conditioner. If there are any
operational problems, check whether or not the
problems correspond to Table 9-2-1. If they correspond
to the Table, they are not problems with the air condi­tioner, but they are indispensable operations to control
and maintain the air conditioner properly.

Table 9-2-1

No. Operation of air conditioner Descriptions

1 When the main power supply is turned on,

the OPERATION lamp on the indoor unit
blinks.

2 The indoor fan motor speed does not change

in the Dry operation.

3 The compressor is not turned off even though

the room temperature is in the range that the
compressor is turned off.

4 The compressor is not turned on and off even

though the thermo control is operated in the
Dry operation.

5 The compressor is not turned on even though

the room temperature is in the range that the
compressor is turned on.

6 The operation mode changes in the

Automatic operation.

7 The Fan only operation continues in the

Automatic operation.

8 The Hi-POWER operation does not work.

The OPERATION lamp blinks to indicate that power is turned on.
If the [

The indoor fan motor speed is automatically controlled in the Dry
operation.

The compressor has a function that it is not turned off for
3 minutes after it is turned on even though the room temperature
is in the range that the compressor is turned off.

In the Dry operation, the compressor is turned on and off
automatically at the regular intervals, independent of the thermo
control.

The compressor is not turned on in the restart delay timer
(3-minutes timer) operation. It is also not turned on after the power
supply is turned on because of this timer operation.

In Automatic operation, the room temperature is detected all time
for control fan speed and the operation mode is changed every
15 minutes according to difference between the room temperature
and the preset temperature.

When the room temperature is in the range (Preset temperature
± 1ıC), the Fan only operation is selected.

This operation does not work when the unit is in the Dry operation
or Fan only operation.

] button is pressed, the lamp stops blinking.

– 54 –

FILE NO. SVM-04022

9-3.Primary Judgement

9-3-1. Role of indoor unit controller

The indoor unit controller receives the operation
commands from the remote control and executes
them.

• Temperature measurement at the air outlet of the
indoor heat exchanger by the indoor temperature
sensor

• Temperature setting of the indoor heat exchanger by
the heat exchanger sensor

• Louver motor control

• Indoor fan motor operation control

• LED display control

• Transferring of operation commands to the outdoor

unit

Table 9-3-1

Lamps Self-diagnosis

A OPERATION lamp is blinking. (1Hz)
B OPERATION lamp is blinking. (5Hz)
C OPERATION lamp is blinking. (5Hz)
D OPERATION lamp is blinking. (5Hz)
E OPERATION lamp is blinking. (5Hz)

F OPERATION and TIMER lamps are blinking.

(5Hz)

9-3-2. Failure diagnosis

The indoor unit diagnoses the operation condition and
indicates the information of the self-diagnosis with the
lamps on the display panel of the indoor unit.

Power failure (when the power supply is turning on)
Thermo sensor (TA) short or break
Heat exchanger sensor (TC) short or break
Indoor fan motor lock or failure
Indoor P.C. board f ailure
Wrong wiring of connecting cable

G OPERATION, TIMER and PAP lamps are

blinking.

Table 9-3-2 Diagnosis by detective operation

Symptom Check Primary judgement

The remote control
does not work.

The outdoor fan
does not rotate.

Turn off the power supply once,
then turn it on. Try to operate
the remote control.

The compressor operates.

The compressor does not operate.

Cycle failure

• Gas shortage or other refrigerant cycle trouble

• Heat exchanger sensor open, break or short

• Overload relay or thermostat trouble of compressor

The remote control
still does not work.

The remote control
works.

The indoor unit (and/or remote
control) is/are defective .

OK.

The outdoor unit (Outdoor fan
motor) is defective .

An internal part of the
compressor or P.C. board is
defective.

– 55 –

9-4.Self-Diagnosis by Remote Control

F

(Check Code)

(1) If the lamps are indicated as shown B to G in Table

9-3-1, exchanger the self-diagnosis by the remote
control.

(2) When the remote control is set to the service

mode, the indoor controller diagnoses the
operation condition and indicate the information of
the self-diagnosis on the display of the remote
control with the check codes. If a fault is detected,
all lamps on the indoor unit will blink at 5Hz and it

will beep for 10 seconds (Pi, Pi, Pi....). The timer

lamp usually blinks (5Hz) during the self-diagnosis.

9-4-1. How to use remote control in service mode

CLR

ON

CLOCK
RESET

CHECK

FILE NO. SVM-04022

(1) Press [CHECK] button with a tip of pencil to set the

remote control to the service mode.

O

• “00” is indicated on the display of the remote
control.

• The timer lamp on the indoor unit blinks
continuously. (5 times per 1 sec.)

PAP

MODE

HiPOWER

SWING

CLR

CLOCK

RESET

FIX

ON

CHECK

TEMP

ECO

FAN

OFF

AUTO

PRESET

MEMO

1.3.5.9H

SLEEP

SET

FILTER

(2) Press [ON 8] or [OFF 9] button.

If there is no fault with a code, the indoor unit will
beep once (Pi) and the display of the remote
control will change as follows:

00 01 1d 1E02 33

• Check the unit with all 52 check codes (00 to 33).
as shown in Table 9-4-1.

• Press [ON 8] or [OFF 9] button to change the
check code backwards.

If there is a fault, the indoor unit will beep for 10
seconds (Pi, Pi, Pi...).
Note the check code on the display of the remote
control.

• 2-digits alphanumeric will be indicated on the
display.

• All lamps on the indoor unit will blink.
(5 times per 1 sec.)

(3) Press [CLR] button. After service finish for clear

service code in memory.

• “7F” is indicated on the display of the remote
control.

• Alphanumeric characters are used for the check code.
is 5. is 6.

is A. is B.
is C. is D.

– 56 –

(4) Press [

] button to release the service mode.

• The display of the remote control returns to as it
was before service mode was engaged.

(5) Time shotening method.

1. Press [SET] button while pressing [CHECK]
button.

2. Press [

] button.

Block level Diagnosis function

Check Check

code

Block

Indoor
P.C. board

code

Symptom Conditioner Condition

Thermo. sensor
short/break.

Table 9-4-1

Continued
operation.

Air

status

Indicated
when detected
abnormal

FILE NO. SVM-04022

Judgement and action

1.Check thermo sensor.

2.If it is OK, check
P.C. board.

Cable
connection/
Thermal
fuse
Refrigerant
system

Heat exchanger
sensor
short/break.

Indoor fan lock,
abnormality of
indoor fan or
thermal fuse break.

Abnormality of other
indoor unit P.C.
board.

1) Wrong wiring or
disconnection of
connective cable.

2) Terminal fuse cut
off.

Continued
operation.

All off

All off

All off

Indicated
when detected
abnormal

Indicated
when detected
abnormal

Indicated
when detected
abnormal

Indicated
when detected
abnormal

1.Check heat exchanger
sensor.

2.If it is OK, check
P.C. board.

1.Check heat thermal
fuse is blow or not?
(Terminal block part.)

2.If the thermal fuse is
not blow, check indoor
fan m otor.
(Refer to trouble
shooting flow charts.)

Replace P.C. board.

1.Check connective
cable correct if wiring is
wrong.

2.Check thermal fuse
and T erminal blocks.

3.If it is OK, check
P.C. board.

Other parts
(including
compressor)

1) Overload relay or
thermostat for
compressor

All off

Indicated
when detected
abnormal

1.If overload relay and

break.

2.If refrigerant cycle is

3. If heat exchanger

Content detected by the check codes “

” to “

” are stored in memory of the microcomputer even if the

power supply is turned off. Theref ore, contents of operations in the past are all displayed.

– 57 –

thermostat for
compressor are OK,
check refrigerant cycle.

OK, check P.C. board.

sensor is OK, check
overload relay and
thermostat for
compressor.

9-5.Troubleshooting Flowcharts

9-5-1. Power can not be turned on (No operation at all)

<Preliminary checks>

(1) Is the supply voltage normal?
(2) Is the connection to the AC output OK.?

Shut off the power supply

from AC outlet once and

turn it on after 5 seconds.

NO

Does the OPERATION

lamp blink?

YES

FILE NO. SVM-04022

Operation

Check Items

Main cause

Countermeasure

Symptom

Does the fuse

Does the thermal

(Under PF. Terminal)

Is the indication voltage

NO

(DC12 V or 5 V) of main

P.C. board correct?

Is the voltage

across C03 measured

DC 310 ~ 340 V?

YES

(F01) blow?

NO

fuse blow?

NO

YES

NO

Does the power turn on

by pushing the

button of the

remote control?

YES YES

YES

YES

Refer to the paragraph

Pre-check , or defective circuit

before power P.C. board block.

Parts (R21, R22, SG01,

C01, C02, DB01, C03,

IC01, T01) are defective.

Wrong wiring of

AC cord or connecting

cable is defective.

Does the CN13

connector the wrong

connecting?

NO NO

(No problem)

Does the transmission

indicator of remote

control flash normally

and transmit certainly?

NO

YES

P.C. board is

defective.

Remote control is

defective.

Replace the remote

control.

Replace the

thermal fuse set.

Check connection.

Replace the main

P.C. board.

Re-wiring the cable.

Is the secondary

voltage of

transformer (T01)

measured DC12V

and DC7V?

YES

* Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.

NO

Shut off the power

supply once, and turn

it on again after

disconnecting the

motor connector CN10*.

Check Resistance

of Pin 1 and 5 of

Fan motor = 162 Ω

YES

NO

Replace Fan motor

and P.C. board.

Replace P.C. board.

– 58 –

9-5-2. Power cannot be turned on after replacing indoor P.C. board
<Checking Procedure>

Connect the AC

power supply

FILE NO. SVM-04022

Does the OPERATION

lamp blink?

YES YES

RAS-13NKHD-E

Blue

CN31

Brown

RY01

Is it wired as shown

in Figure below?

NONO

Black

Return the wiring of the

power relay is returned to

the normal procedure.

To the paragraph of
No Power turns on .

White

Power Cord

PC-Board

Indoor
terminal
block

4

3

21

− 59 −

RAS-07NKHD-E, RAS-10NKHD-E

FILE NO. SVM-04022

Blue

CN31

PC-Board

Brown

RY01

Black

Bind Band

Double winding

2

1

Indoor
terminal
block

White

3

Power Cord

8

RAS-07NKD-E, RAS-10NKD-E, RAS-13NKD-E

Blue Brown

CN31

PC-Board

RY01

Black White

PowerCord

21

Indoor

terminal

block

− 60 −

9-5-3. Outdoor unit does not operate

Shut off the power supply

from AC outlet once and turn

it on after 5 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Does the power turn on by

pushing the [ ] button

of the remote control?

YES

Is AC 220 V

supplied between

terminal block

Is cable connection

between indoor and outdoor

units correct?

Check items as following procedure

in 9-5-4, 9-5-5

1−2

YES

YES

?

NO

NO

NO

NO

See Power cannot be turned on .

See Power cannot be turned on .

Relays (RY01)

or IC31 or IC30 is failure.

Correct cabling between
indoor and outdoor units.

Replace the

P.C. board.

– 61 –

9-5-4. Only compressor does not operate

Shut off the power supply

from AC outlet once and turn

it on after 5 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Does the power turn on by

pushing the [ ] button

of the remote control?

YES

Is the voltage across the indoor terminal

the indoor terminal

(1 − 2) AC 220-240 V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

Is the voltage across the indoor terminal

the out door terminal

(1 − 2) AC 220-240 V?

YES

Are all the cords for compressor normal?

YES

Is the compressor motor winding normal?

(Check the winding resistor.)

YES

Is the capacitor for compressor normal?

YES

Is the overload relay normal?

YES

Does the compressor start?

YES

NO

NO

NO

NO

NO

NO

NO

NO

NO

NO

See Power cannot be turned on .

See Power cannot be turned on .

Relays (RY01)

or IC31 or IC30 is failure.

Correct cabling between indoor

and outdoor units.

Cables between indoor and

outdoor units are defective.

Re-wire or replace the defective cords.

Compressor is defective.

Capacitor is defective.

Overload relay is defective.

Compressor is defective.

Replace the

P.C. board.

Compressor starts but

it stops after a while?

YES

Is the gas quantity normal?

(Check the pressure)

YES

Compressor is defective

NO

Gas shortage (Gas leakage)

– 62 –

9-5-5. Only outdoor fan does not operate

Shut off the power supply

from AC outlet once and turn

it on after 5 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Does the power turn on by

pushing the [ ] button

of the remote control?

YES

Is the voltage across the indoor terminal

(

) : Heat pump model, 1 - 2 :

4

2 -

Cooling only model) AC 220-240 V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

Is the voltage across the terminal

) : Heat pump model, 1 - 2 :

(

4

2 -

Cooling only model) AC 220-240 V?

YES

Are all the cords for outdoor

fan motor normal?

YES

Is the outdoor fan motor winding normal?

(Check the winding resistance)

YES

NO

NO

NO

NO

NO

NO

NO

See Power cannot be turned on .

See Power cannot be turned on .

Relays (RY01)

or IC31 or IC30 is failure.

Correct cabling between indoor

and outdoor units.

Cables between indoor and

outdoor units are defective.

Correct the wire or

replace the defective cords.

Outdoor fan motor is defective.

Replace the

P.C. board.

Is the capacitor for Fan motor normal?

YES

Outdoor fan motor is defective.

NO

Capacitor for outdoor
fan motor is defective.

– 63 –

9-5-6. Only 4-Way valve does not operate (During heating operation)

Heat Pump Model

Shut off the power supply

from AC outlet once and

turn it on after 5 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Does the power turn on by

pushing the [START/STOP] button

of the remote control?

YES

Is the voltage across the indoor terminal

Is the voltage across the outdoor terminal

(

2 - 3 ) 220-240V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

( 2 - 3 ) 220-240V?

YES

Is the wiring of solenoid coil for

4-way valve normal?

YES

NO

NO

NO

NO

NO

NO

See "Power can not be turned on".

See "Power can not be turned on".

Relays (RY04) or IC31

or IC30 is failure.

Correct cabling between indoor

and outdoor units.

Cables between indoor

and outddor units are defective.

Solenoid coil is defective.

Replace the P.C.

board.

4-way valve is defective.

− 64 −

9-5-7. Only the indoor fan does not operate

<Check procedure>

Shut off the

power supply once.

Turn the power supply.

FILE NO. SVM-04022

Does the fan stop in

no operating status?

YES

Start the operation
with low fan setting

in cool operation.

Does the fan rotate?

YES

Change the setting of

cooling to high fan.

Does the fan speed

become higher?

YES

NO

NO

NO

Control P.C. board is defective .

Does AC 120V

or higher voltage apply

to between red and black

lead of fan motor?

YES

Shut off the power supply.

Does the cross flow

fan rotate normally?

YES

Turn on the power supply.

Operation

stops

NO

NO

Does connecting

terminal, connecting

cable or power supply

cord completely?

Does not found the short

wire about connecting

cable and power cord?

YES

Repair the

bearing of

the fan.

Motor control circuit failure

(IC30, IC03, T01) or 12V power

circuit failure (D38, Q33).

Replace the P.C. board.

Replace the P.C. board.

NO

Thermal fuse operated

due to prevent

temperature rising cause

of incompleted connecting.

Normal

Is the rotation signal (DC+5V-0V)

output between 2 (gray lead wire)

3 (brown lead wire) of the motor

and

connector (CN11) when rotating

the cross flow fan by hand in no

operating status?

(1 pulse/one turn)

YES

Replace the control

P.C. board.

− 65−

NO

Replace the fan motor

Replace connecting

the cable (or power cord),

thermal fuse and

terminal block.

FILE NO. SVM-04022

9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board)

There is no beep from
the indoor unit.

Press the [ ] button.

The OPERATION lamp of
the air conditioner main
unit does not light.

Is there direct

sunlight on the

receptor of the

air conditioner?

YES

NO

Is there any

thyristor

fluorescent light

near by?

YES

NO

Does the transmission

YES

NO NO

Is operation

possible when setting the

RESET button of the

air conditioner main unit to

TEST RUN or

TEMPORARY AUT O ?

YES

indicator blink?

Is operation

possible when the
transmitter is moved
nearer to the infrared
signal receiver of the

air conditioner?

YES

Battery life

NO

Reset the remote control

by use the tip pencil push

in the RESET hole

Press the

[ ] button

Does the

transmission

indicator light?

NO

Is there any

beep and

operation?

NO

YES

Avoid direct

sunlight.

Keep the air

conditioner away

from thyristor

fluorescent light.

Can any signal tone
be heard in a transistor
radio when transmitting

within 5 cm distance

from the radio?

YES

P.C. board is failure.

Replace

P.C. board.

Note : After battery replacement,

short circuit the metal terminal at
the side of the battery compartment
(all-clear terminal) with a pencil.

– 66 –

NO

Replace the

batteries.

Normal

YES

Remote control

is failure.

Replace remote

control.

FILE NO. SVM-04022

9-6-1. How to check the P.C. board
(1) Operating precautions

1) When removing the front panel or the P.C. board,
be sure to shut off the power supply.

2) When removing the P.C. board, hold the edge of
the P.C. board and do not apply force to the
parts.

3) When connecting or disconnecting the
connectors on the P.C. board, hold the Whole
housing.
Do not pull at the lead wire.

(2) Inspection procedures

1) When a P.C. board is judged to be defective,
check for disconnection, burning, or discolora­tion of the copper foil pattern or this P.C. board.

2) The P.C. board consists of the following 2 parts

a. Main P.C. board part:

Power relay, indoor fan motor drive circuit and
control circuit, C.P.U. and peripheral circuits,
buzzer drive circuit and buzzer.

b. Infrared rays receive and indication parts:

Infrared rays receiver unit and LED.

– 67 –

(3) Checking procedure

FILE NO. SVM-04022

Table 9-6-1

No.

1

Shut off the power supply and
remove the P.C. board assembly
from the electronic parts base.
Remove the connecting cable from
the terminal block.

2

Remove the connector for the motor,
and turn the power on.
If the OPERATION lamp blinks
(0.5 sec. : ON, 0.5 sec. : OFF) when
the power turning on, the checking
points described as 1-4 of right
column are not necessary to
perform.

3

Make the operation status by
pressing once the [

the status of [FAN ONLY], [ON
TIMER].

4

Start the operation with the system
which the time of the restart delay
timer is shortened.

Procedure

] button, except

Check Point (Symptom) Causes

1.Is the fuse blown?

Voltage check

1.Between 3 of RY01 and CN31
(AC 220 ~ 240 V)

2.Between + and – of C03
(DC 310 ~ 340 V)

3.Between

4.Between 12V and GND

Voltage check

1.Voltage of relay coil. (DC 12 V)
Between pin 10 of IC31 and
Between pin 11 of IC31 and GND

1.All indicators light for 3 sec..

2.Indicators do not indicate normally
after approximate 3 sec..

5V and GND

GND

1. Application of shock voltage.
Overload by short-circuit of the
parts.

1. AC power cord is defective.
Poor contact of the terminal plate.
Miss wiring of the power relay.

2. Capacitor (C01, C02) is defective .
Line filter (L01) is defective.
Resistor (R01) is defective.
Diode (DB01) is defective.

3.IC01, T01, F03 are defective.

4.IC01, T01 are defective.

1.Breaking wire of the relay coil,

defective relay driver. (IC31)

Defective indicator, or poor

}

housing assembly. (CN13)

5

Make the operation status by
pressing once the [

1.The time of the restart delay timer
is shortened.

2.Cool operation

3.Air volume [AUTO]

4.Make the setting temperature lower
enough than room temperature.

5.Continuous operation.

The status of No. 5 is continued, and

6

make the following condition.

1.Heat operation

2.Make the setting temperature
higher enough than room
temperature.

7

Turn the power on after connecting
the motor connector. Start the
operation with the following
condition.

1.Operation [Cooling]

2.Airflow [High fan]

3.Continuous operation

] button.

1.Compressor does not operate.

2.OPERATION lamp blinks.

1.Compressor does not operate.

2.OPERATION lamp blinks.

1.Motor does not rotate. (The key
operation is accepted.)

2.The Motor rotates, but it vibrates
too much.

1.The temperature of the indoor
heat exchanger is abnormally
lower.

2.Poor contact of the heat
exchanger sensor. (The connector
is disconnected.) (CN01)

3.Heat exchanger sensor, main
P.C. board are defective. (Refer to
Table 9-6-2 for the judgment of
defective resistance values.)

4.Main P.C. board is defective.

1.The temperature of the heat
exchanger is abnormally high.

2.The heat exchanger sensor
connector has short-circuit. (CN01)

3.The heat exchanger sensor is
defective. (Refer to Table 9-6-2
for the judgment of defective
resistance values.)

4.P.C. board is defective.

1.Poor contact of the motor
connector.

2.P.C. board is defective.

– 68 –

FILE NO. SVM-04022

17

Table 9-6-2. Approximate resistance value of thermo sensor

Temperature 0°C10°C20°C25°C30°C

Resistance value 33.8 20.35 12.59 10.00 7.99

9-6-2. How to shorten time of restart delay timer

1 Press [SET] button while pressing [CHECK] button

with a tip of a pencil.

2 Then press [

indoor unit.

] button to transmit the signal to the

(kΩ)

TEMP

ECO

FAN

OFF

AUTO

PRESET

MEMO

1.3.5.9H

SLEEP

SET

FILTER

2

1

17

PAP

MODE

HiPOWER

SWING

CLR

CLOCK

RESET

FIX

ON

CHECK

9-6-3. How to set/cancel self cleaning function

The self cleaning function is set from a factory. To cancel this function, should keep press the RESET switch on
Indoor unit for 20 seconds till can hear the long combination sound and repeat the same procedure when need
to set.

– 69 –

9-7.Troubleshooting for Air Purifier and Minus Ion

9-7-1. How to Check Whether the Air Purifier is Good or Not

Turn off the power breaker once,
and turn on again after 10 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Turn off the power breaker and
remove CN34 (Micro switch connector).
Short-circuit between 1 and 2 pin
of CN34 at PC side, and turn on the
power breaker after 10 seconds.

Is DC12V applied

1

between

(Brown/GND) of CN1 of the

micro-switch connector under

OFF status of the micro-switch

micro-switch connector under
ON status of the micro-switch

1) Check operation while short-circuiting CN34 of the main P.C. board.

2) Perform air purifying operation by the remote control.

• In this time, check that the remote control is in status which is shortened by time on

• While the air purifier operates, check that the fan speed [AUTO] is not displayed.

3) Be sure not to touch the dust collector, ionizer, or ionized wire unit with the human body.

(Red/DC12V) and

high-voltage unit?

YES

Is there conduction of

(Front panel opened)?

NO

Is there conduction of

(Front panel closed)?

YES

the reactivation preventive timer and all display lamps go on for approx. 3 seconds
when a signal is received.

If time on the reactivation preventive timer is not shortened,

( )

the high-voltage is not applied to electrode of the air purifier for approx. 1 hour.

(Because the power ON/OFF is controlled on the program)

NO

NO

YES

NO

Is DC12V applied

between

1

(+) and 2 (−)

of CN33 of the main

P.C. board (MCC-5007)?

YES

Micro-switch is stuck

Micro-switch malfunction

NO

To item Power supply is not turned on

Replace the main P.C. board (MCC-5007)

Replace micro-switch.

• Conduction check of micro-switch

Push the switch

ON

ON

Releaes the switch

OFF

Tester

Does the indoor fan rotate?

Does the plasma lamp (Blue) or

the filter lamp (Orange) go on?

go off within 2 seconds after

filter lamp (Orange) go on?

Operation check Primary check

Refer to items, cleaning and check
for the dust collector/ionizer/ionized
wire units.

( )

YES

YES

Does the plasma lamp

it was ON, and does the

YES

Are the dust collector

and ionizer dried?
(Electrode check)

YES

When the ionized wire is
disconnected or when dirt is
not cleaned even cleaned,
replace each unit.

NO

NO

NO

Dry the dust
collector and
ionizer.

YES

Is DC-5V to DC-10V

applied between

4 (Brown/Negative voltage)

and 2 (Brown/GND)

of CN33 of the main

P.C. board?

YES

Referring to the right figure, check the
high-output voltage of the air filter unit.

(NOTE)

Use an exclusive high voltage tester;
otherwise the tester may be broken.

YES

Is output of the ionizer

approx. 3.9kV to 4.7kV?

Is output of the collector

approx. 2.9kV to 3.7kV?

YES

Are the dust

collector/ionizer/ionized

wire units dirty?

Is an abnormal sound

(cracking noise) heard

from the electrode?

To item Only indoor fan does not operate

Replace the main P.C. board (MCC-5007).

• How to check output of the air purifier

NO

GND

Be sure not to come to
contact to the silver part
or not to touch the

[ ]

ionized cables.

NO

NO

<Caution on High Voltage!!>

Ionizer

Output

Replace the high-voltage unit.

No trouble

Collector
output

High-voltage tester

– 70 –

9-7-2. How to Check Whether the Minus Ion Generator is Good or Not

Turn off the power breaker once,
and turn on again after 10 seconds.

FILE NO. SVM-04022

Does the OPERATION lamp blink?

YES

Turn off the power breaker and remove
CN34 (Micro switch connector).
Short-circuit between 1 and 2 pin of
CN34 at PC side, and turn on the
power breaker after 10 seconds.

Is DC12V applied
between 1 (Red/DC12V) and
2 (Brown/GND) of CN1 of the

high-voltage unit in the air purifier?

YES

Is there conduction of

micro-switch connector under

OFF status of the micro-switch

(Front panel opened)?

NO

Is there conduction of
micro-switch connector under
ON status of the micro-switch

(Front panel closed)?

YES

1) Check operation while short-circuiting CN34 of the main P.C. board.

2) Perform air purifying operation by the remote control.

• In this time, check that the remote control is in status which is shortened by time on
the reactivation preventive timer and all display lamps go on for approx. 3 seconds
when a signal is received.

If time on the reactivation preventive timer is not shortened,

( )

the high-voltage is not applied to electrode of the air purifier for approx. 1 hour.

• While the air purifier operates, check that the fan speed [AUTO] is not displayed.
(Because the power ON/OFF is controlled on the program)

3) Be sure not to touch the electrode with the human body.

NO

NO

YES

NO

Micro-switch is stuck

Micro-switch malfunction

To item Power supply is not turned on

Replace the power P.C. board

(MCC-5007) or the housing assembly.

Replace micro-switch.

• Conduction check of micro-switch

Push the switch

ON

Tester

ON

Releaes the switch

OFF

Does the indoor fan rotate?

YES

Does the plasma lamp (Blue) or

the filter lamp (Orange) go on?

YES

Does the plasma lamp

go off within 2 seconds after

it was ON, and does the

filter lamp (Orange) go on?

NO

Referring to the right figure, check the

Operation check Primary check

high-voltage output of the air ionizer.
In this time, peel the thermal insulator, and attach
it to the original position after check operation.
NOTE :
Use an exclusive high voltage tester; otherwise
the tester may be broken.

NO

Does the electrode

output approx. −6kV?

NO

Integrated

power supply assembly

NO

NO

YES

YES

No trouble

To item Only indoor fan does not operate

Replace the main P.C. board (MCC-5007).

To item How to check whether

the air purifier is good or not

•

How to check output of minusion

<Caution on High Voltage!!>

High-voltage
unit

GND

High-voltage tester

Electrode

– 71 –

FILE NO. SVM-04022

10. PART REPLACEMENT

10-1. Indoor Unit

No. Part name Procedures Remarks

1 Front panel

How to remove the front panel

1) Stop the operation of the air conditioner and
turn off its main power supply.

2) Pull the air inlet grille toward you to open it
and remove the air inlet grille.

3) Take off the right side of air filter.

4) Pull out the plasma air purifier.

5) Remove the 4 screws fixing the front panel
before open the horizontal louver and then
remove the front panel from back body by
pulling it toward you.

How to mount the front panel
Reverse step to remove the front panel.

Push the front panel back in and make sure all
hooks are locked.

2 Air inlet grille

2

4 4 Screws

Air filter right

3

4 Plusma

air purifier (3)

4

– 72 –

5

5 Front panel

FILE NO. SVM-04022

No. Part name Procedures Remarks

2 Electrical part

How to remove the electrical part

1) Remove the front panel with procedure 1.

2) Remove the screw holding the electrical part
cover.

3) Disconnect the 2 connectors (3P) for the fan
motor, the connector (5P) for the louver
motor from the P.C. board assembly and the
connector (4P) for eletrical supply.

4) Pull out the TC sensor from the sensor
holder.

5) Remove the screw for the ground connection,
remove the screw for the electrical part box
and LED unit. Then remove the LED unit and
the electrical part box from the main unit.

How to mount the electrical part

1) To put back the electrical part box, lock it to
the upper hook of the back body.

2) Tighten the screw on the electrical part box.

3) Connect the 3 connectors and arrange the
wiring same as original condition and then
tighten the screw from the LED unit to the
back body.

4) Attach the TC sensor to the holder.

5) Tighten the screw for the ground connection.

6)

Tighten the screw on the electrical part cover.

5 Screw

3 Connector

4 TC Sensor

5 Screw

2 Screw

3

2 Connectors

3 Horizontal

louver

1) Remove the front panel following procedure

1.

2) Remove the center shaft of the horizontal
louver from the back body.

3) Remove the left shaft from the back body.

4) Remove the horizontal louver from the back
body.

3 Left shaft

2 Center shaft

– 73 –

FILE NO. SVM-04022

No. Part name Procedures Remarks

4 Heat exchanger

5 Cross flow fan

1) Remove the front panel, electrical part
following procedure 2.

2) Remove the pipe holder at the rear side of
main unit.

3) Remove the 2 screws on the heat exchanger
at the base bearing.

4) Remove the 2 screws on the heat exchanger
at the 2 fixed plates (upper and lower) from
the back body, and then pull out the upper
side of the heat exchanger slowly.

1) Remove the front panel, electrical part and
the heat exchanger following procedure 4.

2) Remove the 2 screws on the band motor (L)
and remove the 2 screws on the band motor
(R) and then remove the cross flow fan.

3) Loosen the set screw of the cross flow fan
then separate the fan and the fan motor.

Notice
To assemble cross flow fan and fan motor to the
unit, please turn the fan motor unit the center of
its terminal meets the lowest point of band motor
(R) (point A).
Fix the cross flow fan with the set screw at the
position where the gap between the back body
and the right surface of the cross flow fan is
6 ± 0.5 mm.

2 Pipe holder

3

2 Screws

4

2 Screws

2

2 Screws
(R)

2 2 Screws (L)

6 Set screw

Middle of the fan motor terminal

6 Base bearing

1) Remove the front panel, electrical part, heat
exchanger and the cross flow fan following
procedure 5.

2) Remove the 2 screws fixing the base
bearing.

3) Remove the bearing from the base bearing. If
the housing protrudes from the base bearing,
put the housing in position and attach the
bearing to the base bearing.

– 74 –

2

2 Screws

FILE NO. SVM-04022

10-2. Outdoor Unit

No. Part name Procedures Remarks

1 Common

procedure

1) Stop the operation of air-conditioner, and
disconnect the power cord from the AC
supply.

2) Remove packed valve cover and Electric
parts cover.
(3 Screws ∅4 x 10L)

3) Remove the cord clamp (2 Screws ∅4 x 22L)
and disconnect the connecting cable.

4) Remove the upper cabinet (4 Screws ∅4 x 10L)
Pulling out upword.

5) Remove the front cabinet.
(3 Screws ∅4 x 10L)
Pull the front right portion toward you, and
remove it pulling out upward.

Cord clamp

2 Screws ∅4 x 22L

Electric
parts cover

3 Screws ∅4 x 10L

Packed valve cover

Upper
cabinet

– 75 –

Front
cabinet

FILE NO. SVM-04022

No. Part name Procedures Remarks

2 Capacitor for

compressor

3 Capacitor for

fan motor

1) Perform the common procedure 1.

2) Remove the fixing screw and the capacitor
band.
(1 Screw ∅4 x 8L for 10UA, 13UA)
(1 Screw ∅4 x 10L for 07UA)

3) Disconnect the lead wires.

1) Perform the common procedure 1.

2) Remove the fixing screw.
(1 Screw ∅4 x 10L)

3) Disconnect the lead wires.

Screws
∅4 x 10L

Capacitor for fan motor

Capacitor band

RAS-10UA, 13UA

Capacitor
for
compressor

Screws
∅4 x 10L

Screws ∅4 x 10L

RAS-07UA

Capacitor
for
compressor

Capacitor
band

Capacitor
for fa n
motor

Screws
∅4 x 10L

– 76 –

11. EXPLODED VIEWS AND PARTS LIST

11-1. Indoor Unit (E-Parts Assy)

405

FILE NO. SVM-04022

411

402

412

401

404

410

406

407

403

Location Part

No. No.

401 43T60001 Terminal Block, 2P

402 43T60002 Terminal Block, 3P

3P AC300V, 20A
403 43T69004 TC Sensor 10kΩ 25°C
404 43T69005 Sensor,Thermostat 10kΩ 25°C
405 43T69416 P.C. Board ASSY, WRS-LED

MCC-861
406 43T69364 Fuse, T emperature , 73°C
407 43T60355 POWER CORD

Description

Location Part

No. No.

410 43T62003 Cord Clamp
411 43T69408 P.C. Board (RAS-07NKD-E)
411 43T69409 P.C. Board (RAS-10NKD-E)

411 43T69410 P.C. Board (RAS-13NKD-E)
411 43T69411 P.C Board (RAS-07NKHD-E)
411 43T69412 P.C Board (RAS-10NKHD-E)

411 43T69413 P.C Board (RAS-13NKHD-E)
412 43T51305 MICRO SWITCH

− 77 −

Description

11-2. Indoor Unit

FILE NO. SVM-04022-1

Location Part

No. No.

201 43T00404 Front Panel Assy
202 43T09336 Inlet Grille Assy
203 43T03314 Back Body Assy
204 43T80309 Air Filter (R)
205 43T80310 Air Filter (L)
206 43T09328 Horizontal Louver
207 43T70002 Drain Hose
208 43T79301 Cap Drain
209 43T21321 Motor; Stepping
210 43T44343 Refrigeration Cycle Assy

(For 07 Series)
210 43T44345 Refrigeration Cycle Assy

(For 13 Series)
210 43T44348 Refrigeration Cycle Assy

(For 10 Series)
211 43T47006 Pipe, Delivery ∅6.35
212 43T47005 Pipe, Suction ∅9.52

(For 07, 10 Series)
212 43T47016 Pipe, Suction ∅12.70 (For 13 Series)
213 43T49009 Spring
214 43T11301 Pipe Shield (For 07, 10 Series)

Description

* Minus Ionizer include with

Electrical Supply Assy

Location Part

No. No.

214 43T11302 Pipe Shield (For 13 Series)
215 43T19302 Holder Sensor
216 43T49302 Plate of Eva Seal
217 43T49006 Holder For Plate
218 43T22002 Asm-M-Bearing
219 43T39301 Base, Bearing
220 43T20302 Cross Flow Fan
221 43T39302 Band Motor-L
222 43T21338 Motor, Fan
223 43T39303 Band Motor-R
224 43T69402 Wireless Remocon

(For Heat pump model)

4

22

(For Cooling model)
225 43T85462 Owner's Manual
226 43T62302 Terminal Cover

227 43T60317 Cord Motor Louver
228 43T07303 Holder Pipe
229 43T69406 Electrical Supply Assy

230 43T69407 Electrical Purifier Assy
231 43T82301 Plate; Installation
232 43T83003 Holder; Remote Controller

69403 Wireless Remocon

43T

Description

– 78 –

11-3. Outdoor Unit (RAS-13UAH-E3)

FILE NO. SVM-04022

Location Part

No. No.

01 43T00368 Front cabinet assembly
02 43T03306 Back cabinet assembly
03 43T42310 Base cabinet assembly
04 43T00396 Upper cabinet assembly
05 43T09318 Guard fan
06 43T62311 Electrical part cover
07 43T20307 Fan propeller
08 43T21308 Motor fan
09 43T47001 Nut flange
10 43T43342 Condenser assembly
11 43T46311 Valv e packed 6.35 Dia
12 43T46019 Valve packed 12.7 Dia
13 43T47331 Bonnet, 6.35 Dia
14 43T47333 Bonnet, 12.7 Dia

15 43T03303 Fixing plate valve

Description

Location Part

No. No.

16
17

18
19
20

21
22

− 79 −

Description

43T47011
43T41764

43T47324
43T49008

43T52310 Packed valve cover assembly

43T55304 Capacitor Plastic film (3
43T55314

23

43T60323 Terminal-4P

24

43T46319

25

43T46310 Coil V-4Way (AC220-240V 50Hz)
26 43T79305
27 43054306

28 43T63001
29 43T47308

Capillary Tube

Compressor (PH170T2-4L2)
Bolt compressor(M6)
Cushion rubber

Capacitor Plastic film (1.5μF 450V)

4-Way V alve

Drain Nipple

Relay Overload

Holder Ol-Relay
Capillary Tube 1.0 Dia

∅1.5ID

μ

5

F 370V)

11-4. Outdoor U nit (RAS-10UAH-E3)

FILE NO. SVM-04022

Location Part

No. No.

01 43T00368 Front cabinet assembly
02 43T03308 Back cabinet assembly
03 43T42311 Base cabinet assembly
04 43T00395 Upper cabinet assembly
05 43T09318 Guard fan
06 43T62311 Electrical part cover
07 43T20307 Fan propeller
08 43T21300 Motor fan
09 43T47001 Nut flange
10 43T43345 Condenser assembly
11 43T46311 Valv e packed 6.35 Dia
12 43T00347 Valve packed 9.52 Dia
13 43T47331 Bonnet, 6.35 Dia
14 43T47332 Bonnet, 12.7 Dia

15 43T03303 Fixing plate valve

Description

Location Part

No. No.

16
17

18
19
20

21
22

− 80 −

43T47011
43T41400

43T47325
43T49001

43T52310 Packedvalve cover assembly

43T55305 Capacitor Plastic film (2
43T55314

23

43T60323 Terminal-4P
24

43T46321
25

43T49307 Solinoid Coil
26 43T79305
27 43054403

28 43T63001

Capillary Tube

Compressor (P
Bolt compressor(M6)
Cushion rubber

Capacitor Plastic film (1.5μF 450V)

4-Way V alve

Drain Nipple

Relay Overload

Holder Ol-Relay

Description

∅1.5ID

H120T1-4C)

μ

5

F 370V)

11-4. Outdoor Unit (RAS-07UAH-E3)

24

FILE NO. SVM-04022

20

23

01

25

03

13

02

12

04

22

15

08 , 09

14

06

05

19

07

10, 11

16

17

21

18

Location Part

No. No.

01 43T19313 Guard, Fan
02 43T20306 Fan, Propeller
03 43T00398 Front Cabinet Coating Assembly
04 43T43350 Condenser Assembly
05 43T62304 Electric Parts Cover
06 43T00397 Back Cabiinet Coating Assembly
07 43T47308 Capillary Tube 1.0 DIA
08 43T00347 Valve, Packed 9.52 DIA
09 43T47332 Bonnet, 9.52 DIA
10 43T46311 Valve, Packed 6.35 DIA
11 43T47331 Bonnet, 6.35 DIA

12 43T21320 Motor, Fan
13 43T47001 Nut, Flange
14 43T19312 Handle

Description

Location Part

No. No.

15
16
17

18
19 43T62305 Packed Valve Cover
20 43T00394 Upper Cabinet Coating Assembly
21 43T63301 Fixing Plate Valve
22 43T42314 Base Coating Assembly
23 43T55305 Capacitor, Plastic Film, 25μF 370V
24 43T55314 Capacitor, Plastic Film, 1.5μF 450V
25 43T60323 Terminal-4P
26 43T46312 4Way-Valve

27 43T46316 Coil Valve 4Way

28 43T79305 Drain Nipply

− 81 −

: CAPILLARY TUBE

07

Description

43T49001 Cushion, Rubber
43T63001 Holder Ol-Relay

43T54302 Relay Overload
43T41304 Compressor (PH80T1-4C)

11-5. Outdoor Unit (RAS-13UA-E3)

FILE NO. SVM-04022

Location Part

No. No.

01 43T00368 Front cabinet assembly
02 43T03306 Back cabinet assembly
03 43T42309 Base coat assembly
04 43T09318 Guard Fan
05 43T62311 Electric part cover
06 43T20307 Fan propeller
07 43T21323
08 43T47001
09 43T41351
10 43T46311
11 43T46019
12 43T47331

Motor fan
Nut flange
Condenser assembly
Valve packed 6.35 Dia
Valve packed 12.7 Dia

Bonnet 6.35 Dia

Description

Location Part

No. No.

13 43T47333 Bonnet 12.7 Dia
14 43T63303 Finxing plate valve
15 43T47014 Capillary tube 1.7 Dia
16 43T41348 Compressor (PH225X2C-4FT)
17 43T47324 Bolt compressor (M6)
18 43T49008 Cushion rubber
19 43T52310 Packed valve cover assembly
20 43T00396 Upper cabinet assembly
21 43T55304 MF-Capacitor (35μF 370V)
22 43T55314 Capacitor, Plastic film (1.5μF 450V)
23 43T60322 Terminal-2P

− 82 −

Description

11-6. Outdoor Unit (RAS-10UA-E3)

FILE NO. SVM-04022

Location Part

No. No.

01 43T00368 Front cabinet assembly
02 43T03308 Back cabinet assembly
03 43T42311 Base coat assembly
04 43T09318 Guard Fan
05 43T62311 Electric part cover
06 43T20307 Fan propeller
07 43T21320
08 43T47001
09 43T41352
10 43T46311
11 43T00347
12 43T47331
13 43T47332 Bonnet 9.52 Dia

Motor fan
Nut flange
Condenser assembly
Valve packed 6.35 Dia
Valve packed 9.52 Dia

Bonnet 6.35 Dia

Description

Location Part

No. No.

14
15
16
17
18
19

20
21
22
23 43T60322 Terminal-2P
24
25

− 83 −

Description

43T63303 Finxing plate valve
43T47011 Capillary tube 1.5 Dia

43T41339 Compressor (PH102T1-4CH)

43T47325 Bolt compressor (M6)
43T49001 Cushion rubber
43T52310 Packed valve cover assembly
43T00395 Upper cabinet assembly
43T55305 MF-Capacitor (35μF 370V)
43T55314 Capacitor, Plastic film (1.5μF 450V)

43T54303 Relay Overload

43T63001 Holder Ol-Relay

11-7. Outdoor Unit (RAS-07UA-E3)

24

FILE NO. SVM-04022

20

23

01

25

03

13

02

12

04

22

15

08 , 09

14

06

05

19

07

10, 11

16

17

21

18

Location Part

No. No.

01 43T19313 Guard, Fan
02 43T20306 Fan, Propeller
03 43T00398 Front Cabinet Coating Assembly
04 43T43340 Condenser Assembly
05 43T62304 Electric Parts Cover
06 43T00397 Back Cabiinet Coating Assembly
07 43T47008 Capillary Tube 1.2 DIA
08 43T00347 Valve, Packed 9.52 DIA
09 43T47332 Bonnet, 9.52 DIA
10 43T46311 Valve, Packed 6.35 DIA
11 43T47331 Bonnet, 6.35 DIA

12 43T21320 Motor, Fan
13 43T47001 Nut, Flange

Description

Location Part

No. No.

14 43T19312 Handle
15 43T49001

16 43T63001 Holder Ol-Relay

17 43T54302 Relay Overload
18 43T41304 Compressor, PH80T1-4C
19 43T62305 Packed Valve Cover
20 43T00394 Upper Cabinet Coating Assembly

21 43T63301 Fixing Plate Valve
22 43T42313 Base Coating Assembly
23 43T55310 Capacitor, Plastic Film, 15μF 370V

24 43T55314 Capacitor, Plastic Film, 1.5μF 450V

25 43T60322 Terminal-2P

− 84 −

: CAPILLARY TUBE

07

Description

Cushion, Rubber

FILE NO. SVM-04021

TOSHIBA CARRIER (THAILAND) CO., LTD.

144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI,

AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

– 73 –