Toshiba RAS-13N2A-ES2, RAS-13GKP-ES2, RAS-13GA-ES2, RAS-13N2AH-ES2 SERVICE MANUAL

SERVICE MANUAL

AIR CONDITIONER

RAS-13GKHP-ES2 / RAS-13GAH-ES2

RAS-13GKP-ES2 / RAS-13GA-ES2

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

FILE NO. SVM-06027

SPLIT WALL TYPE

RAS-13NKP-AS2 / RAS-13N2A-AS2

May, 2006

CONTENTS

1. SPECIFICATIONS

2. CONSTRUCTION VIEWS

2-1 Indoor Unit

2-2 Outdoor Unit

3. WIRING DIAGRAM

3-1 RAS-13GKHP-ES2 / RAS-13GAH-ES2 3-2 RAS-13GKP-ES2 / RAS-13GA-ES2 3-3 RAS-13NKHP-AS2 / RAS-13N2AH-AS2

3-4 RAS-13NKP-AS2 / RAS-13N2A-AS2

4. SPECIFICATION OF ELECTRICAL PARTS

4-1 Indoor Unit (RAS-13GKHP-ES2, RAS-13NKHP-AS2) 4-2 Outdoor Unit (RAS-13GAH-ES2,RAS-13N2AH-AS2) 4-3 Indoor Unit (RAS-13GKP-ES2,RAS-13NKP-AS2) 4-4 Outdoor Unit (RAS-13GA-ES2,RAS-13N2A-AS2)

5. REFRIGERATION CYCLE DIAGRAM

5-1 RAS-13GKHP-ES2 / RAS-13GAH-ES2

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

5-2 RAS-13GKP-ES2 / RAS-13GA-ES2

RAS-13NKP-AS2 / RAS-13N2A-AS2

FILE NO. SVM-06027

6. CONTROL BLOCK DIAGRAM

6-1 RAS-13GKHP-ES2 / RAS-13GAH-ES2,

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

6-2 RAS-13GKP-ES2 / RAS-13GA-ES2,

RAS-13NKP-AS2 / RAS-13N2A-AS2

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 7-7 Current Limit Control 7-8 Auto Restart Function

7-9 Filter Check Lamp 7-10 Self-Cleaning function 7-11 QUIET Mode 7-12 COMFORT SLEEP mode

− 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)

10. PARTS REPLACEMENT

10-1 Indoor Unit 10-2 Outdoor Unit

FILE NO. SVM-06027

11. EXPLODED VIEWS AND PARTS LIST

11-1 Indoor Unit (E-Parts Assy) (For RAS-13GKHP-ES2) 11-2 Indoor Unit (E-Parts Assy) (For RAS-13NKHP-AS2)

Indoor Unit (E-Parts Assy) (For RAS-13GKP-ES2)

11-3

Indoor Unit (E-Parts Assy) (For RAS-13NKP-AS2)

11-4

11-5 Indoor Unit

11-6 Outdoor Unit (RAS-13GAH-ES2,RAS-13N2AH-AS2)

11-7 Outdoor Unit (RAS-13GA-ES2,RAS-13N2A-AS2)

• This air conditioner is charged with

HFC (R410A) that doesn't deplete the Ozone layer.

• This air conditioner requires special

installation for the refrigerant R410A.

− 2 −

1. SPECIFICATIONS

FILE NO. SVM-06027

MODEL

ITEM Cooling Heating Cooling

Capacity

Power source V 220 − 240

Power consumption kW 1.15 1.19 1.14 1.18 1.13 1.17 Power factor % 98 96 96 95 98 97

Running Indoor A 0.15

current Outdoor A 5.20 5.00 5.27 5.18 5.10 4.90 Starting current A 30

Moisture removal lit/h 2.0

Noise

Refrigerant

Refrigerant control

Interconnection

pipe

INDOOR UNIT

Dimensions Width mm 790

Net weight kg 10

Evaporator type Finned tube

Indoor fan type Cross flow fan

Airflow volume

Fan motor output W 20

Air filter Honeycomb woven filter with PP frame

OUTDOOR UNIT

Dimensions Width mm 780

Net weight

Condenser type Finned tube

Outdoor fan type Propeller fan

Airflow volume m3/h 2120 2200 2120 2200 2030 2150

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 (220-240V) dB 50 51 50 51

Name of refrigerant

Rated amount

Gas side size

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

Medium fan m3/h 520 550 520

Low fan m3/h 430 490 430

Height mm 550

Depth mm

Model PA150X2C-4FT

Output W 1100

kW 3.74 3.82 4.20 4.26 3.75 3.75

Phase 1∅ 

Hz 50

kg

mm

m

kg

RAS-13GKHP-ES2 / RAS-13GAH-ES2

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

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

R410A

1.08

Capillary tube

∅ 12.7

1

15*

6

RAS-13NKHP-AS2

RAS-13GAH-ES2,RAS-13N2AH-AS2

290

39

42

RAS-13GKP-ES2 / RAS-13GA-ES2

RAS-13NKP-AS2 / RAS-13N2A-AS2

26

50

0.98

RAS-13GKP-ES2RAS-13GKHP-ES2 RAS-13NKP-AS2

RAS-13GA-ES2,RAS-13N2A-AS2

38

30

51

− 3 −

Note : 1

• Capacity is based on the following temperature conditions.

FILE NO. SVM-06027

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

− 4 −

2-1. Indoor Unit

Front panel

FILE NO. SVM-06027

2. CONSTRUCTION VIEWS

60

6

Knock out system

Air inlet

Air filter

Heat exchanger

790

275

Air outlet

120 80

590

Hanger

64

218

60

6

48

Knock out system

48

53

Drain hose (0.54m)

Hanger

45

Minimum distance to ceiling

275

1

7

0

o

r m

o

re

320

620

235 235

215 215

re

Minimum distance to ceiling

o r m

o 5 6

Hanger

− 5 −

Connecting pipe (0.43m) (Flare ∅6.35)

Connecting pipe (0.33m)

(Flare ∅12.7)

Hanger

150150 160160

Installation plate outline

Center line

For stud bolt (∅ 8~∅10)

For stud bolt (∅6)

26

4519040

Minimum distance to ceiling

1

7

0

o

r m

o

re

32

9090

160

57 18

Wireless remote control

2.2. Outdoor Unit

600

50

36

321

307

A detail Drawing (Back leg)

R5.5

R

Ø

15

6 hole

28

86

321

Ø

25 Drain outlet

FAN-GUARD

436

Ø

FILE NO. SVM-06027

A

109 124

307

321

Ø

2

-

Ø

11 x 14

(For 8 -

Ø

Hole

10 anchor bolt)

Ø

6 hole

11x14 hole

Ø

B Detail Drawing (Front leg)

36 50

R

15

COVER-PV

Z

290

550

275

321 342

Electrical part cover

Liquid side (Flare 6.35)

Ø

Gas side (Flare 12.7)

Ø

5

4

S

ervice port

Z View

9060090

69

129

84

100 or more

321

100 or more

Air outlel

600

Air intlel

600 or more

− 6 −

600 or more

4x 11 Long holes(For 8- 10 anchor bolt)

Ø

3. WIRING DIAGRAM

3-1. RAS-13GKHP-ES2 / RAS-13GAH-ES2

FILE NO. SVM-06027

BRW(L)

L

BLU(N)

N

GRN & YEL

SINGLE PHASE

220-240V~, 50Hz

BLK P04

T02

C.T.

131

CN27

73°Cx2

THERMAL FUSE

Louver

Motor

CN25

PNK

SG01

DSA

VARISTOR

BLK

R22

3

4

PNK

112

RY01

2

CN04

T6.3A 250VAC

FUSE F01

MAIN P.C. BOARD

YEL

54321

C01

R21

VARISTOR

YEL

CN07

YEL

WHI

DC5V

L01

WP-003

RY04RY03

CR01

150°C

1 1

3

CN03

112

BLK

2

BLK

THERMO

SENSOR (TA)

CN01

112

HEAT EXCHANGER

2

SENSOR (TC)

BLK

CR02

2 2 3 3 4 4 5 5 6 6

INFRARED RAYS RECEIVE

AND INDICATION PARTS

345

1

2

345

1

2

BLU

345

2

345

2

Voltage

Regulator

IC03

BLU

R319

R26

BLU

1

C02

CR03

C15

5

CN10

BLK

5

GRY

YEL

BRW

RED

WHI

789

6

789

6

BLU

789

6

789

6

Micro

Power

Module

R25

R27

3 1 3 1

10

11

10

11

BLU

10

11

10

11

CN14

DC12V

+

DB01 C63

CN11

1 2 3 1 2 3

WHI

INDOOR TERMINAL BLOCK

OUTDOOR TERMINAL

BLOCK

COMPRESSOR

BLK

WHI

2

1 4

(L)2(N)

1

BLK

SOLENOID COIL

RED

PNK

WHI

CAPACITOR

BLU

CAPACITOR

RED

3

BLU

FAN MOTOR

BLU

4

WHI

AC FAN MOTOR

GRN&YEL

INDOOR

OUTDOOR

CHASSIS

BLK

− 7−

Heat Exchanger Sensor (TC)

Thermo Sensor (TA)

L

L N

N

SINGLE PHASE

220-240V~, 50Hz

3-2. RAS-13GKP-ES2 / RAS-13GA-ES2

Infrared rays receiver and indication parts.

BRW (L)

BLU (N)

GRN&YEL

CN01

121

CN03

121

CN25

CN14

2

1 1

BLU

1 1

2

BLU

2

43 432

BLU

432 43

F01

T6.3 A

250 VAC

R21 R22

5 5

BLU

5

C15

6 6

BLU

3

6 6587

8

7

10

9 11

8

7

10

11

9

BLU

WHI

8

7

10

11

9

10

11

9

4

RY01

SG01

L01

2

1

4

3

DSA

C01

BLK

P04

RED

TRANS (T T-10)

WHI

113

CN05 CN06

3

DB50

C50

+

IC03

R46

BLU

113

Regulator

circuit

R47

R48

FILE NO. SVM-06027

GRY

3

MCC-920

CR03

D38

DC 12 V

DC 5 V

C58

CN07 1 2 3 4 5

CN11

1 2 3

CN10

5

3

1

WHI

1

YEL YEL YEL YEL

1

2

3

4

5

1 2 3 4 5

Louver motor

YEL

1

GRY

2

BRW

3

WHI

5

BLK

3

RED

1

2

3

4

5

6 6

150 C 1 2 3 4 5

Indoor FAN motor

INDOOR TERMINAL

BLOCK

OUTDOOR

TERMINAL

BLOCK

BLK

CN31

BLK

1

1(L)

FAN MOTOR

RED

WHI

2(N)

112

2

PNK

TEMP FUSE

73 C

CN04

PNK

GRN&YEL

2

INDOOR

OUTDOOR

CHASSIS

RED

CAPACITOR

RED

WHI

COMPRESSOR

PNK WHI

CAPACITOR

− 8 −

3-3. RAS-13NKHP-AS2 / RAS-13N2AH-AS2

FILE NO. SVM-06027

BRW(L) BLU(N)

GRN & YEL

SINGLE PHASE

220-240V~, 50Hz

BLK P04

T02

C.T.

131

CN27

73°Cx2

THERMAL FUSE

Louver

Motor

CN25

PNK

SG01

DSA

VARISTOR

BLK

R22

3

4

PNK

112

RY01

2

CN04

T6.3A 250VAC

FUSE F01

MAIN P.C. BOARD

YEL

54321

C01

R21

VARISTOR

YEL

CN07

YEL

WHI

DC5V

L01

WP-003

RY04RY03

CR01

150°C

1 1

3

CN03

112

BLK

2

BLK

THERMO

SENSOR (TA)

CN01

112

HEAT EXCHANGER

2

SENSOR (TC)

BLK

CR02

2 2 3 3 4 4 5 5 6 6

INFRARED RAYS RECEIVE

AND INDICATION PARTS

345

1

2

345

1

2

BLU

345

2

345

2

Voltage

Regulator

IC03

BLU

R319

R26

BLU

1

C02

CR03

C15

5

CN10

BLK

5

GRY

YEL

BRW

RED

WHI

789

6

789

6

BLU

789

6

789

6

Micro

Power

Module

R25

R27

3 1 3 1

10

11

10

11

BLU

10

11

10

11

CN14

DC12V

+

DB01 C63

CN11

1 2 3 1 2 3

WHI

INDOOR TERMINAL BLOCK

OUTDOOR TERMINAL

BLOCK

COMPRESSOR

BLK

WHI

2

1 4

(L)2(N)

1

BLK

SOLENOID COIL

RED

PNK

WHI

CAPACITOR

BLU

CAPACITOR

RED

3

BLU

FAN MOTOR

BLU

4

WHI

AC FAN MOTOR

GRN&YEL

INDOOR

OUTDOOR

CHASSIS

BLK

− 9 −

Heat Exchanger Sensor (TC)

Thermo Sensor (TA)

BRW (L) BLU (N) GRN&YEL

SINGLE PHASE

220-240V~, 50Hz

3-4. RAS-13NKP-AS2 / RAS-13N2A-AS2

Infrared rays receiver and indication parts.

CN01

121

CN03

121

CN25

CN14

2

1 1

BLU

1

2

1

250 VAC

INDOOR TERMINAL

BLOCK

43 432

BLU

432 43

F01

T6.3 A

R21 R22

5 5

BLU

5

C15

6 6

BLU

6 6587

3

CN31

BLK

8

7

10

9 11

8

7

10

11

9

BLU

WHI

8

7

10

11

9

10

9

RY01

L01

2

3

WHI

1

BLK

11

P04

4

SG01

DSA

1

C01

4

GRN&YEL

2

RED

TRANS (T T-10)

WHI

113

CN05 CN06

3

DB50

C50

+

IC03

BLU

R47

R46

R48

GRY

113

3

Regulator

circuit

D38

INDOOR

CN04

FILE NO. SVM-06027

MCC-920

CR03

112

PNK

DC 12 V

DC 5 V

2

PNK

CN07 1 2 3 4 5

CN11

1 2 3

CN10

C58

5

3

1

TEMP FUSE

73 C

WHI

1

YEL YEL YEL YEL

YEL

GRY BRW

WHI

BLK

RED

1

2

3

4

5

1 2 3 4 5

1 2 3

5

3

1

Louver motor

150 C

1

1 2

2 3

3 4

4

5

6 6

Indoor FAN motor

OUTDOOR

TERMINAL

BLOCK

BLK

1(L)

RED

FAN MOTOR

2(N)

RED

WHI

CHASSIS

RED

CAPACITOR

COMPRESSOR

PNK WHI

OUTDOOR

CAPACITOR

− 10 −

FILE NO. SVM-06027

4. SPECIFICATION OF ELECTRICAL PARTS

4-1. Indoor Unit (

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) 10k at 25 C 3 Micro Power Module (M01) 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 (C63) KMH400VSSN47M22S 47mF, 400 V 9 Fuse (F01) BET 6.3A T6.3A, 250VAC

10 Varistor (R21, R22) TND15G561K 560 V 11 Resistor (R319) RF-2TK5R6 5.6 , 2 W 12 Louver motor MP24Z 12VDC 13 Relay (Comp., RY01) DI1U Rating 25A/AC250 V, 3-48VDC 14 Relay (Fan, RY03) G5NB-1A Rating 3A/AC250 V, 12VDC 15 Relay (Solenoide, RY04) G5NB-1A Rating 3A/AC250 V, 12VDC

RAS-13GKHP-ES2,

RAS-13NKHP-AS2)

µRM1260V

DC 390V, Secondary DC 12V

10k at 25 C

°

W

°

4-2. Outdoor Unit (RAS-13GAH-ES2, RAS-13N2AH-AS2)

No. Parts name

1 Compressor PA150X2C-4FT Winding resistance (Ω) C-R C-S

Fan motor

2

(for outdoor)

Running capacitor 3

(for fan motor)

Running capacitor 4

(for compressor)

Solenoid coil

(for 4-way valve)

5

(for Heat pump

model)

RS44B306U0214S AC 440V, 30µF

Type

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

(at 20°C) 2.35 3.22

Output (Rated) 42W, 6poles, 1 phase, 220 − 240V, 50Hz

HF-240-42A or

WLF-240-42A

DS451155NPQB AC 450V, 1.5µF

STF-01AJ503H1

Winding resistance (Ω) Red-Black White-Black

(at 20°C) 176.2 or 188

AC 220 − 240V, 50Hz

Specifications

290.5 or 289

− 11 −

FILE NO. SVM-06027

4-3. Indoor Unit (RAS-13GKP-ES2, RAS-13NKP-AS2)

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) 10k at 25 C 3 Transformer 4 Microcontroller unit (IC30) TMP87CM40AN 5 Heat exchanger sensor

(TC-sensor) 6 Line filter (L01) *SS11V-06270 27mH, 600mA 7 Bridge rectifier (DB50) KBP06M/51 1.5A, 600 V 8 Capacitor (C50) PF1E222MNN1625 2200mF, 25 V 9 Fuse (F01) BET6.3A T6.3A, 250VAC

10 Varistor (R21, R22)

11 Louver motor MP24Z 12VDC 12 Relay (Comp., RY01) DI1U Rating 25A/AC250 V, 3~48VDC

TT-10

TND15G561K

W

10k at 25 C

W

560 V

°

4-4. Outdoor Unit (RAS-13GA-ES2, RAS-13N2A-AS2)

No. Parts name Type Specifications

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

1 Compressor

Fan motor

2

(for outdoor)

Running capacitor

3

(for fan motor)

Running capacitor

4

(for compressor)

PA150X2C-4FT

WLF-240-30A

DS451155NPQB

RS44B306U0214S

Winding resistance (Ω) C-R C-S

(at 20°C)

Output (Rated) 30W, 6poles, 1 phase, 220 − 240V, 50Hz

Winding resistance (Ω) Red-Black White-Black

(at 20°C) 237

AC 450V, 1.5µF

AC 440V, 30µF

2.35

3.22

380

− 12 −

5. REFRIGERATION CYCLE DIAGRAM

5-1. RAS-13GKHP-ES2 / RAS-13GAH-ES2

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

FILE NO. SVM-06027

Indoor unit

Cooling

0.39m (Connecting pipe) ∅12.7

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

Cooling

Heating

P

Packed valve

(∅12.7)

Heating

4-way valve

Cooling

Compressor

PA150X2C-4FT

Accumulator

Heat exchanger

Cross flow fan

T1

Capillary tube

∅1.5x1500l

0.49m

(Connecting pipe)

∅6.35

Packed valve

(∅6.35)

Capillary tube

∅1.0x400l

Heat exchanger

Refrigerant

R410A : 1.08 kg.

Cooling Heating

Propeller fan

Outdoor unit

Mark( )means check points of Gas Leak.

Ambient temp.

50Hz

Standar d

pressure

(MPaG)

P

Surface temp. of heat

exchanger inter changing

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

Standard 2.70 44.5 High 20/15 7/6

Heating Overload*1 3.12 ~ 3.77 52.0 ~ 56. 8 Low 27/− 24/18

Low temperature 2.20 35.0 High 20/− −10/−10

Standard 0.90 10.0 High

27/19

35/24

Cooling Overload 0.99 14.0 High 32/23 43/26

Low temperature 0.65 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.

− 13 −

5-2. RAS-13GKP-ES2 / RAS-13GA-ES2

RAS-13NKP-AS2 / RAS-13N2A-AS2

FILE NO. SVM-06027

Indoor unit

Cooling

0.39m (Connecting pipe) ∅12.7

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

Cooling

Packed valve

Cooling

P

(∅12.7)

Compressor

PA150X2C-4FT

Accumulator

Heat exchanger

Cross flow fan

T1

Packed valve

(∅6.35)

Capillary tube

∅1.7x700

0.49m (Connecting pipe) ∅6.35

l

Heat exchanger

Refrigerant

R410A : 0.98 kg.

Cooling

Propeller fan Outdoor unit

Mark( )means check points of Gas Leak.

Ambient temp.

50Hz

Standar d

pressure

(MPaG)

P

Surface temp. of heat

exchanger inter changing

pipe

T1

(°C)

Fan speed

(indoor)

conditions DB/WB

(°C)

Indoor Outdoor

Standard 0.80 10.0 High 27/19 35/24

Cooling Overload 1.04 15.0 High 32/23 43/26

Low temperature 0.72 2.0 Low 21/15 21/15

Note :

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

− 14 −

6. CONTROL BLOCK DIAGRAM

FILE NO. SVM-06027

6-1. RAS-13GKHP-ES2 / RAS-13GAH-ES2,

Main Unit Control Panel

Heat Exchange sensor

Thermo. Sensor

Current Sensor

(Compressor Current)

Infrared Rays Signal Reciver

Initiallizing Circuit

Clock Frequency Oscillator Circuit

Power Supply

Circuit

Compressor

RAS-13NKHP-AS2 / RAS-13N2AH-AS2

M.C.U.

Functions

• Louver Control

•3-minutes Delay at Restart

for Compressor

•Motor Revolution Control

•Processing

(Temperature Processing)

•Timer

ON/OFF

Signal

Outdoor Fan

ON/OFF

Signal

4-Way Valve

ON/OFF

Signal

Louver

ON/OFF

Signal

Operation

Display

Timer

Display

Filter Sign

Display

Hi Power

Sign Display

PRE DEF.

Sign Display

Indoor Fan

Motor

220-240 V~, 50Hz

REMOTE CONTROL

Noise Filter Relay Driver, Louver Driver

Relay

RY01

Compressor 4-Way Valve

Remote Control

Operation ( )

Operation Mode Selection

AUTO, COOL, DRY, HEAT, FAN ONLY

Temperature Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver Auto Swing

Louver Direction Setting

Relay

RY03

Outdoor Fan Motor

Infrared Rays

Louver

Motor

Relay

RY04

ECO

Hi power

TIMER 1.3.5.9H

COMFORT SLEEP

QUIET

− 15 −

FILE NO. SVM-06027

6-2. RAS-13GKP-ES2 / RAS-13GA-ES2,

Main Unit Control Panel M.C.U.

Heat Exchange sensor

Thermo. Sensor

Infrared Rays Signal Reciver

Initiallizing Circuit

Clock Frequency Oscillator Circuit

Power Supply

Circuit

RAS-13NKP-AS2 / RAS-13N2A-AS2

Functions

• Louver Control

•3-minutes Delay at Restart

for Compressor

•Motor Revolution Control

•Processing

(Temperature Processing)

•Timer

Compressor

ON/OFF

Signal

ON/OFF

Operation

Display

Timer

Display

Filter Sign

Display

Hi Power

Sign Display

Fan Only

Sign Display

Indoor Fan

Motor

Louver

Signal

220-240 V~, 50Hz

REMOTE CONTROL

Noise Filter Relay Driver, Louver Driver

Relay

RY01

Compressor, Outdoor Fan Motor

Infrared Rays

Remote Control

Operation ( )

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

TIMER 1.3.5.9H

COMFORT SLEEP

QUIET

− 16 −

7. OPERATION DESCRIPTION

FILE NO. SVM-06027

7-1. Outline of Air Conditioner Control

This is a fixed capacity type air conditioner, which uses AC motor for an indoor fan. The AC motor drive circuit is mounted in the indoor unit. And electrical

parts which driving the compressor and the outdoor

fan motor, 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

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

• Indoor fan motor operation control

• Louver motor control

• LED display control

• Outdoor fan motor operation control

• 4-WAYS-VALVE operation control

(Heat pump model only)

• Compressor operation control

• Receiving the information of the operation

status and judging the information or the indication of errors

Table 7-1-1

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 microcontroller, 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 [SWING] button is pressed again, 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

=

LOW+MED

+

2

MED+=

MED+HIGH

2

+

OPERATION

MODE

RAS-13GKP Series RAS-13NKP Series

Model

RAS-13GKHP Series RAS-13NKHP Series

FAN TAP

Cooling UH H M L L- UL SL

Fan only Dry

Heat UH H M L L- UL SL

rpm

Air flow volume (m3/h)

rpm

Air flow volume (m3/h)

1350

650

1350 1300 1150 1100 1050 1020 950 900 850 700

650 630 550 520 490 470 430 400 370 280

H M L L-

M L L- UL SL

1300 1150 1100 1050 1000 950 900 850

630 550 520 490 460 430 400 370

800

340

800

340

750

310

− 17 −

700

280

550 190

FILE NO. SVM-06027

7-2. Description of Operation Circuit

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

blinks. This means that the power supply is on.

(2) When pressing [ ] button on the remote control,

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

([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

(Preset temp.: 22°C)

NOTE :

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

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

(2) The Hi POWER, ECO and COMFORT SLEEP

operation cannot be set.

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

+

, MED, MED+ or

M+

*1 *1 *1

-

L

7-2-2. Cooling operation

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

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

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

°C

ON ON

OFF OFFOFF ON

4-way valve

Compressor

Outdoor fan

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

(Preset temp.)

−

(Room 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-.

display

- 18-

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

FILE NO. SVM-06027

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.

-

(Room temp.) (Preset temp.)

Preset temp.

+3

+2

+1

ON:6min.

OFF:4min.

ON:5min.

OFF:5min.

OFF

0

Compressor

OFF

ON:5min.

OFF

4-way valve

OFF:4min.

OFF:5min.

Outdoor fan

Fig. 7-2-4

7-2-4. Heating operation *Heat pump model only

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

ON

display

OPERATION

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

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

4-way valve

Fig. 7-2-6

ON

OFF

ON

Outdoor fan

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 SLLL SL L

*

Super Low

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, ECO, COMFORT SLEEP and

QUIET operations cannot be set.

- 19 -

FILE NO. SVM-06027

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

°C

453434

33

323121

20

*2

A+8

A− 4

*6 *5

Indoor heat exchanger temperature

AUTO

*4

*3

SL

SL*1

Stop

Manual (One of 5 steps)

-

H (Up to

L seting speed)

Fig. 7-2-8 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.

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

Fan only operation

-

1

-

*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

·

 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

-

4°C

Table 7-2-1

-

3.5°C

Heating operation

Heating model

(Room temp.) (Preset temp.)

Cooling model

.

Fig. 7-2-9

-

20

-