Toshiba RAS-13UKPX-T2, RAS-13UAX-T2, RAS-10UAX-T2, RAS-10UKPX-T2, RAS-07UKPX-T2 Service Manual

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SERVICE MANUAL

AIR-CONDITIONER

SPLIT WALL TYPE

FILE NO. SVM-02003

RAS-13UKPX-T2 / RAS-13UAX-T2 RAS-10UKPX-T2 / RAS-10UAX-T2 RAS-07UKPX-T2 / RAS-07UAX-T2

RAS-13UKX / RAS-13UAX

RAS-10UKX / RAS-10UASX

10/13 Class

Apr., 2002

07 Class

FILE NO. SVM-02003

– 1 –

CONTENTS

1. SPECIFICATIONS

2. CONSTRUCTION VIEWS

2-1 Indoor Unit (RAS-13UKPX-T2, RAS-10UKPX-T2, RAS-07UKPX-T2) 2-2 Indoor Unit (RAS-13UKX, RAS-10UKX) 2-3. Outdoor Unit (RAS-13UAX-T2, RAS-13UAX) 2-4. Outdoor Unit (RAS-10UAX-T2) 2-5. Outdoor Unit (RAS-10UASX, RAS-07UAX-T2)

3. WIRING DIAGRAM

4. SPECIFICATION OF ELECTRICAL PARTS

4-1 Indoor Unit 4-2 Outdoor Unit (RAS-13UAX-T2) 4-3 Outdoor Unit (RAS-13UAX) 4-4 Outdoor Unit (RAS-10UAX-T2, RAS-10UASX) 4-5 Outdoor Unit (RAS-07UAX-T2)

5. REFRIGERATION CYCLE DIAGRAM

5-1 RAS-13UKPX-T2 / RAS-13UAX-T2 5-2 RAS-10UKPX-T2 / RAS-10UAX-T2 5-3 RAS-07UKPX-T2 / RAS-07UAX-T2 5-4 RAS-13UKX / RAS-13U AX 5-5 RAS-10UKX / RAS-10UASX

6. CONTROL BLOCK DIAGRAM

6-1 RAS-13UKPX-T2 / RAS-13UAX-T2

RAS-10UKPX-T2 / RAS-10UAX-T2 RAS-07UKPX-T2 / RAS-07UAX-T2

6-2 RAS-13UKX / RAS-13U AX

RAS-10UKX / RAS-10UASX

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 Auto Restart Function 7-7 Filter Check Lamp

FILE NO. SVM-02003

– 2 –

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 (RAS-13UAX-T2, RAS-13UAX) 10-3 Outdoor Unit (RAS-10UAX-T2) 10-4 Outdoor Unit (RAS-07UAX-T2, RAS-10UASX)

11. EXPLODED VIEWS AND PARTS LIST

11-1 Indoor Unit (E-Parts Assy) 11-2 Indoor Unit (RAS-13UKPX-T2, RAS-10UKPX-T2, RAS-07UKPX-T2) 11-3 Indoor Unit (RAS-13UKX, RAS-10UKX) 11-4 Outdoor Unit (RAS-13UAX-T2) 11-5 Outdoor Unit (RAS-10UAX-T2) 11-6 Outdoor Unit (RAS-13UAX) 11-7 Outdoor Unit (RAS-10UASX, RAS-07UAX-T2)

– 3 –

FILE NO. SVM-02003

RAS-13UKPX-T2 RAS-10UKPX-T2 RAS-07UKPX-T2

RAS-13UKX / RAS-13UAX RAS-10UKX / RAS-10UASX

RAS-13UAX-T2 RAS-10UAX-T2 RAS-07UAX-T2

ITEM Cooling

Capacity

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

kW 3.65 2.70 2.10 3.70 3.75 2.60 2.60

Phase 1∅

Power source V 220 220 – 240

Hz 50 Power consumption kW 1.05 0.80 0.60 1.25 1.29 0.88 0.93 Power factor % 98 96 92 98 95 95 94 Running Indoor A 0.15 current Outdoor A 4.70 3.65 2.80 5.66 5.53 4.05 3.98 Starting current A 25 11 24 16 Moisture removal lit/h 2.0 1.2 0.8 2.0 1.2 Noise Indoor (H/M/L) dB 41/35/31 39/33/26 38/32/26 41/35/31 39/33/26

Outdoor (220-240V) dB 49 46 44 47-48 45-46

Refrigerant

Name of refrigerant R-22 Rated amount kg 0.80 0.85 0.57 0.78 0.65

Refrigerant control Capillary tube

Gas side size mm ∅12.70 ∅9.52 ∅12.70 ∅9.52 Connection type Flare connection Liquid side size mm ∅6.35

Interconnection

Connection type Flare connection

pipe

Maximum length

m 15*

10*

15*

10*

(One way) Maximum height

m6 5 6 5

difference

INDOOR

RAS-13UKPX-T2 RAS-10UKPX-T2 RAS-07UKPX-T2 RAS-13UKX RAS-10UKX

Height mm 275

Dimensions Width mm 790

Depth mm 208 Net weight kg 10 Evaporator type Finned tube Indoor fan type Cross flow fan

High fan m3/h 630 570 630 Air volume Medium fan m3/h 550 490 460 550 490

Low fan m3/h 460 370 340 460 370 Fan motor output W 30 Air filter Honeycomb woven filter with PP frame

OUTDOOR

RAS-13UAX-T2 RAS-10UAX-T2 RAS-07UAX-T2 RAS-13UAX RAS-10UASX

Height mm 538 530 538 530 Dimensions Width mm 780 770 660 780 660

Depth mm 300 200 240 300 240 Net weight kg 41 30 26 37 28 Condenser type Finned tube Outdoor fan type Propeller fan Airflow volume m3/h 1830 1700 1280 1700 1900 1420 1520 Fan motor output W 42 30 20 30

Compressor

Model

RM5515FNE96 RM5510GNE94 PH80T1-4C PH160T2-4L2 PH102T1-4C

Output W 1100 750 605 1100 750 Safety device Fuse, Overload relay Louver type Automatic louver Usable outdoor temperature range °C 21 ~ 43

1. SPECIFICATIONS

MODEL

– 4 –

FILE NO. SVM-02003

Note : 1

• Capacity is based on the following temperature conditions.

Note : 2

• Charge refrigerant according to the table below.

RAS-10UKPX-T2 / RAS-10UAX-T2

Refrigerant RAS-07UKPX-T2 / RAS-07UAX-T2

RAS-10UKX / RAS-10UASX

*1 No need to charge

15m or less 10m or less

refrigerant

Temperature

Condition

JIS C9612-1994

Cooling

Indoor unit inlet air temperature

(DB) 27°C

(WB) 19°C

Outdoor unit inlet air temperature

(DB) 35 °C

(WB) 24 °C

RAS-13UKX-T2 / RAS-13UAX-T2

RAS-13UKX / RAS-13UAX

FILE NO. SVM-02003

– 5 –

2. CONSTRUCTION VIEWS

2-1. Indoor Unit (RAS-13UKPX-T2, RAS-10UKPX-T2, RAS-07UKPX-T2)

Connecting pipe (0.33m) (For 07,10 series ; Flare ∅9.52

For 13 series ; Flare ∅12.7)

Knock out system

Back body

Front panel

Air outlet

Air inlet

Air filter

Heat exchanger

Knock out system

660

275

790

208

4519040

590

320

620

235 235

215 215

9090

275

150150 160160

120 80

660

Hanger

Drain hose (0.54m)

Connecting pipe (0.43m) (Flare ∅6.35)

For stud bolt (∅8~∅10)

For stud bolt (∅6)

Installation plate outline

Center line

Minimum distance to ceiling

170 or more

Minimum distance to ceiling

170 or more

65 or more

Minimum distance to ceiling

Wireless remote control

57 18

160

FILE NO. SVM-02003

– 6 –

2-2. Indoor Unit (RAS-13UKX, RAS-10UKX)

Front panel

Back body

Knock out system

660

275

Air outlet

Air inlet Air Filter

790

Heat exchanger

Knock out system

660

208

80590

320

620

235

215 215

9090 150150 160160

4540 190

275

235

120

Hanger

Drain hose (0.54m)

Connecting pipe (0.43m)

(Flare ∅6.35) Connecting pipe (0.33m) (For 07,10 series ; Flare ∅9.52

For 13 series ; Flare ∅12.7)

For stud bolt (∅8~∅10)

Installation plate outline

Center line

Minimum distance to ceiling

170 or more

Minimum distance to ceiling

170 or more

65 or more

Minimum distance to ceiling

Wireless remote control

57 18

160

FILE NO. SVM-02003

– 7 –

2-3. Outdoor Unit (RAS-13UAX-T2, RAS-13UAX)

538

325

52.5

301

325

300

Handle

∅25Drain outlet

Electric parts cover

Service port

325 (pitch)

(8.5)

342

100 or more

600 or more

Installation dimension

600

Air inlet

Air outlet

8-∅6 hole (for fixing outdoor unit)

Liquid side (Flare ∅6.35)

Gas side (Flare ∅12.7)

120

∅11x14 hole

∅6 hole

R10

600

Detail Drawing

50 36

4-∅11x14 hole (for ∅8-∅10 anchor bolt)

600

100

130

780

Fan guard

∅420

View

4x∅11x14 Long holes (for ∅8-∅10 anchor bolt)

FILE NO. SVM-02003

– 8 –

2-4. Outdoor Unit (RAS-10UAX-T2)

600 85

111

∅25 Drain hole

216

230

8-∅6 Holes (For fixing the outdoor unit)

4-∅11x14 Long holes (For anchor bolt ∅8-∅10)

Gas side (flare ∅9.52)

Liquid side (flare ∅6.35)

111

600

R10

216

230

∅11x14 Hole

∅6 Hole

Handle

525

530

268

Fan guard

∅420

770

200

Electric parts cover

54 62

Access for charging

250

45 or more

Air inlet

600 or more

(Minimum distance of the wall)

4-∅11x14 Long holes

400 or more

Air outlet

Center port

230

100 or more

Air inlet

Visible outline of the product

Detail Drawing

Mounting dimension of anchor bolt

268

770

(For anchor bolt ∅8-∅10)

FILE NO. SVM-02003

– 9 –

2-5. Outdoor Unit (RAS-10UASX, RAS-07UAX-T2)

Cover PV

273.5

59.5

∅420

500 97.5

(11)

297

(12.5)273.5 (pitch)

660

242

A Detail Drawing (Back Leg)

660

50 36

R 15

R 5.5

273.5

265

∅6 Hole

B Detail Drawing (Front Leg)

R 15

660

265

273.5

∅6 Hole

∅11x14 Hole

Z View

∅25Drain outlet

2-∅11x14 hole (for ∅8-∅10 anchor bolt)

Fan guard

530

Liquid side

(Flare ∅6.35) Gas side (Flare ∅12.7)

Service port

126

325

100 or more

600 or more

Installation dimension

600

Air inlet

Air outlet

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

FILE NO. SVM-02003

– 10 –

3. WIRING DIAGRAM

CN13

CN07

BLK

GRN&YEL

POWER TERMINAL BLOCK

POWER SUPPLY SINGLE PHASE 220-240V , 50 Hz

BRW BLU

BLK

WHI

GRN&YEL

OUTDOOR TERMINAL BLOCK

INDOOR TERMINAL BLOCK

WHI

DSA

VARISTOR

RY01

F01

C15

L01

IC03

C58

R48

R46

R47

CR03

D38

C01 R01

DB01

POWER SUPPLY CIRCUIT

C02

DC 12V DC 5V

R21 VARISTOR

MAIN P.C. BOARD

MCC-862

T6.3A 250V

P04

SG01

CN04

INDOOR

OUTDOOR

1 2

CAPACITOR

RED

WHI

BLKCBLK

BLK

GRN & YEL CHASSIS

RED

FAN MOTOR

OVER LOAD RELAY

YEL

135

GRY

BRW

BLK

WHI

RED

CN01CN03

THERMO SENSOR

(TA)

HEAT

EXCHANGER

SENSOR

(TC)

CN10CN11

AC FAN MOTOR

BLK

24 24

6 6

3 3

112

BLK

112

: : : : : : : : :

BROWN RED WHITE YELLOW BLUE BLACK GRAY PINK ORANGE GREEN & GREENGRN

YELLOW

BRW

RED

WHI YEL BLU BLK

GRY

PNK

ORN

GRN&YEL

COLOR IDENTIFICATION

BLU

WHI

YEL

CN25

PNK

YEL

WHI

INFRARED RAYS RECEIVE AND INDICATION PARTS

4 5 6 7 8 9

10 11

4 5 6 7 8 9

10 11

4 5 6 7 8 9

10 11

2 1

R22

Louver motor

GRN&YEL

FILE NO. SVM-02003

– 11 –

4. SPECIFICATION OF ELECTRICAL PARTS

4-1. Indoor Unit

4-2. Outdoor Unit (RAS-13UAX-T2)

No. Parts name Type Specifications

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

1 Compressor RM5515FNE96 Winding resistance (Ω) C-R C-S

(at 20°C) 2.43 3.78 Output (Rated) 42W , 6poles, 1 phase, 220 – 240V, 50/60Hz

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

(at 20°C) 176.2 290.5

Running capacitor

DS451205BPQA AC 450V, 2.0µF

(for fan motor)

Running capacitor

DS371306CPNB AC 370V, 30µF

(for compressor)

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

No. Parts name Type Specifications

1 Fan motor (for indoor) MMF-240-20-4A-1 AC Motor with 135°C thermo fuse 2 Thermo sensor (TA-sensor) ——— 10kΩ at 25°C 3 Switching transformer (T01) SWT-47 4 Microcontroller unit (IC30) TMP87CM40AN-2C67 5 Heat exchanger sensor

——— 10kΩ at 25°C

(TC-sensor) 6 Line filter (L01) LC*SS11V-06270 27mH, 600mA 7 Bridge rectifier (DB01) D3SBA60 4A, 600V 8 Capacitor (C02) KMH400VSSN47M22S 47µF, 400V 9 Fuse (F01) TSCR6.3A T6.3A, 250VAC

10 Varistor (R21, R22) 15G561K 560V 11 Resistor (R01) RF-2TK5R6 5.6Ω, 2W 12 Louver motor MP24GA 12VDC 13 Relay (Comp., RY01) DI12D1 Rating 20A/AC250V, 12VDC

FILE NO. SVM-02003

– 12 –

4-3. Outdoor Unit (RAS-13UAX)

4-4. Outdoor Unit (RAS-10UAX-T2, RAS-10UASX)

No. Parts name Type Specifications

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

1 Compressor PH160T2-4L2 Winding resistance (Ω) C-R C-S

(at 20°C) 2.43 3.78 Output (Rated) 30W, 6poles, 1 phase , 220 – 240V, 50/60Hz

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

(at 20°C) 245 388

Running capacitor

DS501155BPQA AC 500V, 1.5µF

(for fan motor) 4

Running capacitor

DS371356CPNB AC 370V, 35µF

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

No. Parts name Type Specifications

Output (Rated) 800W, 2poles, 1 phase, 220 – 240V, 50Hz

1 Compressor Winding resistance (Ω) C-R C-S

(at 20°C) 2.159 3.899 Output (Rated) 750W, 2poles, 1 phase, 220 – 240V, 50Hz Winding resistance (Ω) C-R C-S (at 20°C) 3.88 5.06 Output (Rated) 30W, 6poles, 1 phase, 220 – 240V, 50Hz

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

(at 20°C) 245 388

Running capacitor

DS501155BPQA AC 500V, 1.5µF

(for fan motor) 4

Running capacitor

DS371256CPNB AC 370V, 25µF

(for compressor) 5 Overload relay LPAP960B U/T: 6.1A (80°C), OPEN: 135±5°C, CLOSE: 78±11°C

RM5510GNE94

(RAS-10UAX-T2)

PH102T1-4C

(RAS-10UASX)

FILE NO. SVM-02003

– 13 –

4-5. Outdoor Unit (RAS-07UAX-T2)

No. Parts name Type Specifications

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

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

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

2 Fan motor (for outdoor) HF-240-20B Winding resistance (Ω) Red-Black White-Black

(at 20°C) 387.3 466.2

Running capacitor

DS501155BPQA AC 500V, 1.5µF

(for fan motor) 4

Running capacitor

DS371156CPNB AC 370V, 15µF

(for compressor) 5 Overload relay JMRA99269-9200 U/T: 4.2A (80°C), OPEN: 135±5°C, CLOSE: 69±11°C

FILE NO. SVM-02003

– 14 –

Note :

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

Standard 0.48 13.0 High 27/19 35/24

Cooling Overload 0.60 18.0 High 32/23 43/26

Low temperature 0.42 2.0 Low 21/15 21/15

50Hz

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Standard

pressure P

(MPaG)

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

5. REFRIGERATION CYCLE DIAGRAM

5-1. RAS-13UKPX-T2 / RAS-13UAX-T2

Heat exchanger

Indoor unit

Cross flow fan

Cooling

Compressor

Condenser

Propeller fan Outdoor unit

Capillary tube

∅1.7x500S

RM5515FNE96

Cooling

Mark( )means check points of Gas Leak.

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

Cooling

Packed valve

(∅12.7)

Packed valve

(∅6.35)

0.39m (Connecting pipe) ∅12.7

0.49m (Connecting pipe) ∅6.35

Refrigerant R-22 : 0.80 kg.

FILE NO. SVM-02003

– 15 –

5-2. RAS-10UKPX-T2 / RAS-10UAX-T2

Indoor unit

Cross flow fan

Cooling

Compressor

Condenser

Propeller fan Outdoor unit

RM5510GNE94

Cooling

Mark( )means check points of Gas Leak.

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

Cooling

Packed valve

(∅9.52)

Packed valve

(∅6.35)

0.39m (Connecting pipe) ∅9.52

0.49m (Connecting pipe) ∅6.35

Refrigerant R-22 : 0.85 kg.

Evaporator

Capillary tube

∅1.5x1200S

Note :

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

Standard 0.58 13.0 High 27/19 35/24

Cooling Overload 0.64 17.0 High 32/23 43/26

Low temperature 0.39 2.0 Low 21/15 21/15

50Hz

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Standard

pressure P

(MPaG)

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

FILE NO. SVM-02003

– 16 –

5-3. RAS-07UKPX-T2 / RAS-07UAX-T2

Note :

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

Standard 0.45 14.0 High 27/19 35/24

Cooling Overload 0.69 18.0 High 32/23 43/26

Low temperature 0.40 3.0 Low 21/15 21/15

50Hz

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Standard

pressure P

(MPaG)

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

Heat exchanger

Indoor unit

Cross flow fan

Cooling

Compressor

Condenser

Propeller fan Outdoor unit

Capillary tube

∅1.5x1200S

PH80T1-4C

Cooling

Mark( )means check points of Gas Leak.

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

Cooling

Packed valve

(˘9.52)

Packed valve

(∅6.35)

0.39m (Connecting pipe) ˘9.52

0.49m (Connecting pipe) ∅6.35

Refrigerant R-22 : 0.57 kg.

FILE NO. SVM-02003

– 17 –

5-4. RAS-13UKX / RAS-13UAX

Note :

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

Standard 0.45 13.0 High 27/19 35/24

Cooling Overload 0.62 18.0 High 32/23 43/26

Low temperature 0.40 2.0 Low 21/15 21/15

50Hz

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Standard

pressure P

(MPaG)

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

Indoor unit

Cross flow fan

Cooling

Compressor

Condenser

Propeller fan Outdoor unit

PH160T2-4L2

Cooling

Mark( )means check points of Gas Leak.

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

Cooling

Packed valve

(˘12.7)

Packed valve

(∅6.35)

0.39m (Connecting pipe) ˘12.7

0.49m (Connecting pipe) ∅6.35

Refrigerant R-22 : 0.78 kg.

Evaporator

Capillary tube

∅1.7x700S

FILE NO. SVM-02003

– 18 –

5-5. RAS-10UKX / RAS-10UASX

Indoor unit

Cross flow fan

Cooling

Compressor

Condenser

Propeller fan Outdoor unit

PH102T1-4C

Cooling

Mark( )means check points of Gas Leak.

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

Cooling

Packed valve

(∅9.52)

Packed valve

(∅6.35)

0.39m (Connecting pipe) ∅9.52

0.49m (Connecting pipe) ∅6.35

Refrigerant R-22 : 0.65 kg.

Evaporator

Capillary tube

∅1.5x1400S

Accumulator

Note :

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

Standard 0.52 13.0 High 27/19 35/24

Cooling Overload 0.65 18.0 High 32/23 43/26

Low temperature 0.40 3.0 Low 21/15 21/15

50Hz

Fan speed

(indoor)

Ambient temp.

conditions DB/WB

(°C)

Indoor Outdoor

Standard

pressure P

(MPaG)

Surface temp. of heat

exchanger interchanging

pipe T1 (°C)

FILE NO. SVM-02003

– 19 –

6. CONTROL BLOCK DIAGRAM

6-1. RAS-13UKPX-T2 / RAS-13UAX-T2, RAS-10UKPX-T2 / RAS-10UAX-T2,

RAS-07UKPX-T2 / RAS-07UAX-T2

REMOTE CONTROL

Heat Exchange sensor

Main Unit Control Panel M.C.U.

Functions

Operation

Display

Timer

Display

Filter Sign

Display

Hi Power

Sign Display

Fan Only

Sign Display

Indoor Fan

Motor

Louver

Motor

Louver

ON/OFF

Signal

Compressor

ON/OFF

Signal

Power Supply

Circuit

Noise Filter Relay Driver, Louver Driver

Relay

RY01

220-240 V~, 50Hz

Compressor, Outdoor Fan Motor

Initiallizing Circuit

Clock Frequency Oscillator Circuit

• Louver Control

• 3-minutes Delay at Restart

for Compressor

• Processing (Temperature Processing)

• Motor Revolution Control

• Timer

Thermo. Sensor

Infrared Rays Signal Reciver

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

ECO

Hi power

Filter Reset

Infrared Rays

FILE NO. SVM-02003

– 20 –

6-2. RAS-13UKX / RAS-13UAX, RAS-10UKX / RAS-10UASX

REMOTE CONTROL

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

ECO

Infrared Rays

Heat Exchange sensor

Main Unit Control Panel M.C.U.

Functions

Operation

Display

Timer

Display

Filter Sign

Display

Fan Only

Sign Display

Indoor Fan

Motor

Louver

Motor

Louver

ON/OFF

Signal

Compressor

ON/OFF

Signal

Power Supply

Circuit

Noise Filter Relay Driver, Louver Driver

Relay

RY01

220-240 V~, 50Hz

Compressor, Outdoor Fan Motor

Initiallizing Circuit

Clock Frequency Oscillator Circuit

• Louver Control

• 3-minutes Delay at Restart

for Compressor

• Processing (Temperature Processing)

• Motor Revolution Control

• Timer

Thermo. Sensor

Infrared Rays Signal Reciver

FILE NO. SVM-02003

– 21 –

7. OPERATION DESCRIPTION

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.

Table 7-1-1

7-1. Outline of Air Conditioner Control

This is a fixed capacity type air conditioner, which uses a AC motor for an indoor fan. The AC motor drive circuit is mounted in the indoor unit. And electrical parts which operate the compressor and the outdoor fan motor, are mounted in the outdoor unit. The air conditioner is mainly controlled by the indoor unit controller. The controller operates the indoor fan motor based upon commands transmitted by the remote control and transfers the operation commands to the outdoor unit controller. The outdoor unit controller receives operation commands from the indoor unit, and operates the outdoor fan motor and the compressor.

(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 inlet 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

• Receiving of information of the operation status and judging of the information or indication of error

LOW

MED+=

LOW+MED

MED+HIGH

RAS-13UKPX-T2 RAS-10UKPX-T2 RAS-07UKPX-T2

Model Motor speed Air flow level Motor speed Air flow level Motor speed Air flow level

(rpm) (m3/h) (rpm) (m3/h) (rpm) (m3/h)

HIGH 1,300 630 1,300 630 1,200 570 Cooling MED+ 1,220 600 1,180 560 1,100 520 and MED 1,150 550 1,050 490 1,000 460 Fan only LOW+ 1,070 500 950 430 900 400

LOW 1,000 460 850 370 800 340

RAS-13UKX RAS-10UKX

Cooling HIGH 1,300 630 1,300 630 and MED 1,150 550 1,050 490 Fan only LOW 1,000 460 850 370

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