Toshiba RAS-13YKH-ES, RAS-07YKHE, RAS-07YAH-ES, RAS-07YAH-E, RAS-10YKH-E SERVICE MANUAL

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SERVICE MANUAL

AIR-CONDITIONER

SPLIT WALL TYPE

RAS-07YKH-E/RAS-07YAH-E

FILE NO. DAS-SM-00-003

SUPPLEMENT

RAS-10YKH-E

RAS-10YAH-E

RAS-13YKH-E / RAS-13YAH-E

RAS-07YKH-ES/RAS-07YAH-ES RAS-10YKH-ES / RAS-10YAH-ES RAS-13YKH-ES / RAS-13YAH-ES

1. SPECIFICATIONS.................................................................................... 3

2. CONSTRUCTION VIEWS ....................................................................... 7

3. WIRING DIAGRAM ................................................................................ 10

4. SPECIFICATIONS OF ELECTRICAL PARTS ..................................... 12

5. REFRIGERANT CYCLE DIAGRAM ..................................................... 15

6. CONTROL BLOCK DIAGRAM ............................................................. 21

7. OPERATION DESCRIPTIONS................................................................ 22

8. INSTALLATION PROCEDURE .............................................................. 30

9. TROUBLESHOOTING CHART.............................................................. 44

10. PART REPLACEMENT.......................................................................... 60

11. EXPLODED VIEWS AND PARTS LIST .............................................. 65

– 2 –

1. SPECIFICATIONS

RAS-10YKH-E / RAS-10YAH-E, RAS-13YKH-E / RAS-13YAH-E

MODEL

ITEM

Capacity kW *1

Phase Single V220–240Power source

Hz 50 Power consumpt i on kW 0,98–1,02 0,89–0,91 1,26–1,30 1,19–1,27 Power fac tor % 95–90 95–88 98–92 95–93

Running current Starting c urr e nt A 19 14 25 25

Moisture remov a l lit/h 1,2 2,0 Noise

(SPL at 1 me te r ) Refrigerant

Refrig erant control Capillary tube

Interconnection pipe

Condensate drain pipe Outer diameter mm 16

INDOOR UNIT RAS-10YKH-E RAS-13YKH-E

Net weight kg 8 Evap orator type Finned tube Indoor fan type Cross flow fan

Fan motor output W 20 Air filter Polypropylene net filter (Washable)

OUTDOOR UNIT RAS-10YAH-E RAS-13YAH-E

Net weight kg 31 42 Condenser type Finned tube Outdoor fan type Propeller Air flow rate (220–240V) m³/h 1500–1700 1690–1730 Fan motor output W 18 28

Compressor Safety device Fuse, Overload relay

Auto l ouver Yes Usable outdoor temperature range °C21–43 -5–21 21–43 -5–21

Indoor/Outdoor A

Indoor (H/M/L) dB (A) 41 / 36 / 29 41 / 36 / 29 44 / 39 / 34 44 / 39 / 34 Outdoor (220–240V) dB (A) 47–49 47–49 49 / 51 49 / 51 Name of refrigerant R-22 Rated volume kg 0,74 0,88

Gas side size mm 9,52 12,7 Connection type Flare connection Liquid side size mm 6,35 Connection type Flare connection Maximum length (of one way) m *210 15 Maximum he ight differenc e Indoor un it Outdoor unit

Height mm 265 Width mm 790Dimensions Depth mm 189

High fan m³/h 600 650 Medium fan m³/h 500 560Air flow rate Low fan m³/h 400 510

Height mm 530 538 Width mm 770 780Dimensions Depth mm 200 300

Model PH120T1-4C PH170T2-4L2 Output W 750 1100

↑ ↓

V220V–240V 220V–240V 220V–240V 220V–240V

RAS-10YKH-E/10YAH-E RAS-13YKH-E/13YAH-E

Cooling Heating Cooling Heating

220V–240V 220V–240V 220V–240V 220V–240V

2,65–2,70 3,00–3,10 3,45–3,50 4,00–4,10

0,11/4,58 - 0,11/4,61 0,11/4,17 - 0,11/4,22 0,15/5,70 - 0,15/5,75 0,15 /5,54 - 0,15/5,44

Specifications are subject to change without notice.

– 3 –

RAS-10YKH-ES / RAS-10YAH-ES, RAS-13YKH-ES / RAS-13YAH-ES

MODEL

ITEM

Capacity kW *1

Phase Single

V220–240Power source

Hz 50 Power consumpt ion kW 0,98–1,02 0,89–0,91 1,26–1,30 1,19–1,27 Power f acto r % 9 5–90 95–88 98–94 97–93

Runnin g cur r ent Starti ng current A 19 14 25 25

Moisture removal lit/h 1,2 2,0 Noise

(SPL at 1 me t er) Refrigerant

Refrigerant control Capillary tube

Interconnection pipe

Condensate drain pipe Outer diameter mm 16

INDOOR UNIT RAS-10YKH-ES RAS-13YKH-ES

Net weight kg 8 Evap orator type Finned tube Indoor fa n type Cross flow fa n

Fan motor output W 20 Air filter Polypropylene net filter (Washable)

OUTDOOR UNIT RAS-13YAH-E RAS-13YAH-ES

Net weight kg 31 42 Condenser type Finned tube Outdoor fan type Propeller Air flow rate (220–240V) m³/h 1500–1700 1690–1730 Fan motor output W 18 28

Compressor Safety device Fuse, Overload relay

Aut o louve r Yes Usable outdoo r te m perature range °C21–43 -5–21 21–43 -5–21

Indoor/Outdoor A

Indoor (H/M/L) dB (A) 41 / 36 / 29 41 / 36 / 29 44 / 39 / 34 44 / 39 / 34 Outdoor (220–240V) dB (A) 47–49 47–49 49 / 51 49 / 51 Name of refrigerant R-410A Rated volume kg 0,69 0,80

Gas side size mm 9,52 Connection type Flare connection Liquid side size mm 6,35 Connection type Flare connection Maximum length (of one way) m *210 15 Maximum height differenc e Indoor unit Outdoor unit

Height mm 265 Width mm 790Dimensions Depth mm 189

High fan m³/h 600 650 Medium fan m ³/h 500 560Air flow rate Low fan m³/h 400 510

Height mm 530 538 Width mm 770 780Dimensions Depth mm 200 300

Model PA118X1T-4FZ PA160X2T-4FM Output W 750 1100

↑ ↓

V220V–240V

RAS- 10 YKH- ES/10YAH-ES RAS-13YKH-ES/13YAH-ES

Cooling Heating Cooling Heating

220V–240V

2,65–2,70 3,00–3,10 3,45–3,50 4,00–4,10

0,11/4,44 - 0,11/4,46 0,11/4,15 - 0,11/4,10 0,15 /5,70 - 0,15/5,61 0,15 /5,43 - 0,15/5,54

Specifications are subject to change without notice.

– 4 –

Note :

• Capacity is based on the follo wing temperature conditions.

TEMPERATURE

Indoor unit inlet air temperature

Outdoor unit inlet air temperature

Notes : *2 CHARGELESS

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES

• No additional refrigerant required.

• This air conditioner accepts a connection piping length of up to 10m and a head of up to 5m.

• There is no need to add the refrigerant as long as the total length of the connection piping is up to 10m.

RAS-13YKH-E, RAS-13YKH-ES

• No additional refrigerant required.

• This air conditioner accepts a connection piping length of up to 15m and a head of up to 6m.

• There is no need to add the refrigerant as long as the total length of the connection piping is up to 15m.

CONDITION COOLING HEATING

(DB) 27 °C 20 °C

(WB) 19 °C 12 °C

(DB) 35 °C 7 °C

(WB) 24 °C 6 °C

– 6 –

2-1. Indoor Unit

2. CONSTRUCTION VIEWS

Air inlet

265

Air outlet

Air filter

790

232 326 232

Hanger

Heat exchanger

Front panel

Back body

189

Knock out system

Drain hose (0,54m)

Hanger

Connecting pipe (0,39m) (Flare Ø9,52)

(Flare Ø12,7 for 13YKH-E only)

Hanger

2,5

Minimum distance

17 20

265

to wall

120 or more 120 or more

178,5

3,5

40,5

Center line

321

65965,5 450

326

66 or more

Minimum distance to ceiling

HangerHanger

Installation

plate outline

790

Connecting pipe (0,49m)

(Flare Ø6,35)

65,5

12626931976

Hanger For stud bolt

(Ø8~Ø10) For stud bolt

(Ø6)

Minimum distance

20 2037

to wall

40,5

60,5

Knock out system

– 7 –

2-2. Outdoor Unit

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES

600 85

Detail Drawing

36 50

216

230

Ø11x14 Hole

Handle

600

R10

Ø6 Hole

230

216

Fan guard

111

Ø25 Drain hole

8-Ø6 Holes (For fixing the outdoor unit)

4-Ø11x14 Long holes (For anchor bolt Ø8-Ø10)

111

Gas side (flare Ø9,52)

Liquid side (flare Ø6,35)

200

525

530

Ø420

268

TOSHIBA

770 59

770

268

Electric parts cover

54 62

Service port

250

230

Inlet port

100 or more

View

600

Inlet port

45 or more

Visible outline of the product

Outlet port

Center

400 or more

Mounting dimension of anchor bolt

port

600 or more

(Minimum distance of the wall)

4-Ø11x14 Long holes

(For anchor bolt Ø8-Ø10)

– 8 –

RAS-13YAH-E, RAS-13YAH-ES

Detail Drawing

325

301

Ø11x14 hole

Handle

300

50 36

600

R10

Ø6 hole

538

52,5

325

Fan guard

Ø420

Ø25 Drain outlet

120

6-Ø11x14 hole (for Ø8-Ø10 anchor bolt)

600 780

Gas side (Flare Ø12,7 for 13YAH-E, Flare Ø9,52 for 13YAH-ES)

Liquid side (Flare Ø6,35)

8-Ø6 hole(for fixing outdoor unit)

Electric parts cover

100

(8,5)

130

325 (pitch)

342

Service port

(8,5)

Installation dimension

100 or more

325

100 or more

Air outlet

View

600

Air inlet

600 or more

– 9 –

600 or more

4xØ11x14 Long holes (for Ø8-Ø10 anchor bolt)

07 07

RAS-13YKH-E / RAS-13YAH-E RAS-13YKH-ES / RAS-13YAH-ES

P04

BRW

BLU

1 3

SG01

DSA

POWER

TERMINAL

BLOCK

Ø 220V-240V

BLK

GRN&YEL

L N

50Hz

RY02

BLK

WHI

VARISTOR

T02

C.T

R22

CN04

250V

RY04RY03

F01

6,3A

RY01

CR01

CR02

ORN

1 1

R21

THERMAL FUSE 77˚C x 2

ORN

C15

L01

YEL

BLK

BRW

LOUVER MOTOR

INFRARED RAYS RECEIVE

AND INDICATION PARTS

CN07

C01

BLU

6 6

PNK

R01

YEL

ORN

RED

BRW

1 1

DB01

BLU

4433221

BLU

4321

BLU

PNK

8 8

BLK

9 9

WHI

CN25

CN13

C02

POWER SUPPLY

2 2

BLK

CN03CN10

CIRCUIT

MCC-798

BLK

HEAT

EXCHANGER

SENSOR

DC 12V

CR03 IC 03

DC 5V

C58

CN11 CN01

5 3 1 5 3 1

BLK

PNK

23456

WHI

1 1

BLK

THERMO

SENSOR

(TA)

(TC)

Detail A

RAS-13YAH-ES RAS-13YAH-E

Same as

figure.

BLK

Detail B

RAS-13YAH-ES

Same as

figure.

RAS-13YAH-E

OVER LOAD

RELAY

BLK

THERMOSTAT

FOR

COMPRESSOR

BLK

COMPRESSOR

INDOOR

TERMINAL

BLOCK

OUTDOOR TERMINAL

BLOCK

COMPRESSOR

WHI

BLK

RED

321

BLK BLUBLU

RED

SOLENOID

COIL

CAPACITOR

PNK

WHI

– 11 –

BLU

RED

GRN&YEL

OUTDOOR

GRN & YEL

CHASSIS

CAPACITOR

RED

AC FAN MOTOR

INDOOR

BLK

WHI

FAN

MOTOR

COLOR IDENTIFICATION

BROWN

BRW

RED

WHITE

WHI

YELLOW

YEL

BLUE

BLU

BLACK

BLK

GRAY

GRY

PINK

PNK

ORANGE

ORN

GRN&YEL

GREEN & YELLOW

4-2. Outdoor Unit

RAS-10YAH-E, RAS-10YAH-ES RAS-13YAH-E, RAS-13YAH-ES

No. PARTS NAME MODELS TYPE SPECIFICATIONS

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

1 Compressor

Fan mot or

(for outd oor)

Running

capacitor (for fan motor)

Running

capacitor (for compressor)

5 Overload relay

Thermostat

(for com p ressor)

Solenoid coil

(for 4-way valve)

RAS-10YAH-E

RAS-13YAH-E

RAS-10YAH-ES

RAS-13YAH-ES

RAS-10YAH-E RAS-10YAH-ES

RAS-13YAH-E RAS-13YAH-ES

RAS-10YAH-E RAS-10YAH-ES

RAS-13YAH-E RAS-13YAH-ES

RAS-10YAH-E RAS-10YAH-ES

RAS-13YAH-E RAS-13YAH-ES

RAS-10YAH-E

RAS-13YAH-E

RAS-10YAH-E

RAS-10YAH-E RAS-13YAH-E

RAS-10YAH-ES RAS-13YAH-ES

PH120T1-4C

PH170T2-4L2

PA118X1T-4FZ

PA160X2T-4FM

UE6-21SJ5P

AF-230-28P

SK-50FMP1,5U1 AC 500V, 1,5mF

SK-50FMP1,5U2 AC 500V, 1,5mF

SK-40CMP25U1 AC 400V, 25mF

SK-40CMP35U1 AC 400V, 35mF

JMRA99269-9200 U/T : 6,8A (90°C), OPEN 135 ± 5°C, CLO S E : 69 ± 11°C JMRA99257-920 0 U/T : 8,0A (80°C), OPEN 145 ± 5°C, CLOSE : 75 ± 11°C

CS-7 OFF : 130°C, ON : 70°C

LB60012 AC 200 / 240V

VHV-01A1501A1 AC 200 / 240V

Winding resista n ce (W) (at 20°C)

Output (Rated) 1 100W, 2poles, 1phase , 220–240V, 50Hz Winding resista n ce (W)

(at 20°C) Output (Rated) 750W, 2poles, 1phase, 220–240V, 50Hz Winding resista n ce (W)

(at 20°C) Output (Rated) 1 100W, 2poles, 1phase , 220–240V, 50Hz Winding resista n ce (W)

(at 20°C) Output (Rated) 1 8W, 6poles, 1phase , 220–240V, 50Hz Winding resista n ce (W)

(at 20°C) Output (Rated) 2 8W, 6poles, 1phase , 220–240V, 50Hz Winding resista n ce (W)

(at 20°C)

C-R C-S

4,53 8,73

C-R C-S

2,22 3,04

C-R C-S

3,17 5,18

C-R C-S

2,26 3,53

Red-Black White-Black

370 370

Red-Black White-Black

198 160

– 13 –

5. REFRIGERANT CYCLE DIAGRAM

RAS-10YKH-E / RAS-10YAH-E

Indoor unit

Cooling

0,39m (Connecting pipe) ø9,52

O.D.:9,52mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø9,52)

Heating

4-way valve

Cooling

Compressor

PH120T

Accumulator

-4C

Evaporator

Cross flow fan

Dryer

0,49m (Connecting pipe) ø6,35

Packed valve

(ø6,35)

Capillary tube

ø1,5x500

Condenser

Refrigerant R-22 0,74kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Standard

pressure P

(kg/cm²G)

Propeller fan Outdoor unit

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Mark( )means check points of Gas Leak

Standard 15,0 40,0 High 21/ - 7/6 High temperature *119–23 52,0–59,0 Low 27/ - 21/15Heating Low temperature 12,5 35,0 High 21/ - -10/-10 Standard 6,0 12,0 High 27/19 35/24 High temperature 6,5 15,0 High 32/23 43/26Cooling Low temperature 4,0 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 ov erload, the high temperature limit control operation is included.

– 15 –

RAS-13YKH-E / RAS-13YAH-E

Indoor unit

Cooling

0,49m (Connecting pipe) ø12,7

O.D.:12,7mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø12,7) Gas container connection (Reinstall etc.)

Heating

4-way valve

Cooling

Compressor

PH170T2-4L2

Accumulator

Heat exchanger

Cross flow fan

Condenser

Capillary tube

ø0,6x1500

Capillary tube

ø1,7x400

0,39m (Connecting pipe) ø6,35

Packed valve

(ø6,35)

Capillary tube

ø1,2x400

Refrigerant R-22 0,88kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Standard

pressure P

(kg/cm²G)

Propeller fan

Outdoor unit

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Mark( )means check points of Gas Leak

Standard 15,0 43,0 High 21/ - 7/6 High temperature *119–23 52,0–59,0 Low 27/ - 21/15Heating Low temperature 12,5 35,0 High 21/ - -10/-10 Standard 5,0 10,0 High 27/19 35/24 High temperature 6,0 14,0 High 32/23 43/26Cooling Low temperature 4,0 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 ov erload, the high temperature limit control operation is included.

– 16 –

RAS-07YKH-E / RAS-07YAH-E

Indoor unit

Cooling

0,39m (Connecting pipe) ø9,52

O.D.:9,52mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø9,52)

Heating

4-way valve

Cooling

Compressor

PH80T

Accumulator

-4C

Evaporator

Cross flow fan

Dryer

0,49m (Connecting pipe) ø6,35

Packed valve

(ø6,35)

Capillary tube

ø1,5x1400

Condenser

Refrigerant R-22 0,63kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Standard

pressure P

(kg/cm²G)

Propeller fan

Outdoor unit

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Mark( )means check points of Gas Leak

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

1 : During heating overload, the high temperature limit control operation is included.

– 17 –

RAS-10YKH-ES / RAS-10YAH-ES

Indoor unit

Cooling

0,39m (Connecting pipe) ø9,52

O.D.:9,52mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø9,52)

Heating

4-way valve

Cooling

Compressor

Muffler

PA118X1T-4FZ

Accumulator

Condenser

Evaporator

Cross flow fan

Dryer

Capillary tube

ø1,2x400

0,49m (Connecting pipe) ø6,35

Packed valve

(ø6,35)

Muffler

Capillary tube

ø0,8x400

Refrigerant R-410A 0,69kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Standard

pressure P

(MPaG)

Propeller fan Outdoor unit

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Mark( )means check points of Gas Leak

Standard 2,5 43,0 High 20/ - 7/6 High temperature *13,1–3,6 51,0–58,0 Low 27/ - 21/15Heating Low temperature 2,2 36,0 High 20/ - -10/-10 Standard 0,9 10,0 High 27/19 35/24 High temperature 1,1 16,0 High 32/23 43/26Cooling Low temperature 0,6 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 ov erload, the high temperature limit control operation is included.

– 18 –

RAS-13YKH-ES / RAS-13YAH-ES

Indoor unit

Cooling

0,49m (Connecting pipe) ø9,52

O.D.:9,52mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø9,52) Gas container connection (Reinstall etc.)

Heating

4-way valve

Cooling

Muffler

Compressor

PA160X2T-4FM

Heat exchanger

Cross flow fan

Dryer

Condenser

Packed valve

Capillary tube

ø1,2x1200

(Note) Maximum pipe length is 15m Maximum pipe head is 6m

0,39m (Connecting pipe) ø6,35

(ø6,35)

Capillary tube

ø1,5x500

Refrigerant R-410A 0,80kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Outdoor unit

Standard

pressure P

(MPaG)

Propeller fan

Mark( )means check points of Gas Leak

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Standard 2,7 43,0 High 20/ - 7/6 High temperature *13,2–3,6 52,0–57,0 Low 27/ - 21/15Heating Low temperature 2,0 30,0 High 20/ - -10/-10 Standard 0,9 11,0 High 27/19 35/24 High temperature 1,0 14,0 High 32/23 43/26Cooling Low temperature 0,6 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 ov erload, the high temperature limit control operation is included.

– 19 –

RAS-07YKH-ES / RAS-07YAH-ES

Indoor unit

Cooling

0,39m (Connecting pipe) ø9,52

O.D.:9,52mm O.D.:6,35mm

Cooling

Heating

Packed valve

(ø9,52)

Heating

4-way valve

Cooling

Compressor

PA79X1T-4FZ5

Accumulator

Evaporator

Cross flow fan

Dryer

0,49m (Connecting pipe) ø6,35

Packed valve

(ø6,35)

Capillary tube

ø1,2x900

Condenser

Refrigerant R-410A 0,73kg

Fan speed

(indoor)

Ambient temp.

conditions DB/WB (°C)

Indoor Outdoor

50Hz

Cooling Heating

Standard

pressure P

(kg/cm²G)

Propeller fan

Outdoor unit

Surface temp. of heat

exchanger interchanging

pipe T (°C)

Mark( )means check points of Gas Leak

Standard 2,5 43,0 High 20/ - 7/6 High temperature *1 3,1-3,6 51,0–58,0 Low 27/ - 21/15Heating Low temperature 2,2 36,0 High 20/ - -10/-10 Standard 0,9 10,0 High 27/19 35/24 High temperature 1,1 16,0 High 32/23 43/26Cooling Low temperature 0,6 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 ov erload, the high temperature limit control operation is included.

– 20 –

Main Unit Control Panel

C. P. U

Heat Exchanger Sensor

Thermo. Sensor

Current Sensor

(Compressor Current)

Infrared Rays Signal Receiver

Functions

• Louver Control

• 3-minutes Delay at Restart for Compressor

Operation

Display

Timer

Display

ECONO.

Sign Display

6. CONTROL BLOCK DIAGRAM

Infrared

Rays

Remote Control

Operation (START/STOP)

– 21 –

Operation Mode Selection

AUTO, COOL, DRY, HEAT, FAN ONLY

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

Initializing Circuit

Clock Frequency Oscillator Circuit

Power Supply

Circuit

Noise Filter

• Motor Revolution Control

• Processing

(Temperature Processing)

• Timer

Compressor

ON/OFF Signal

Outdoor Fan

ON/OFF Signal

Relay Driver, Louver Driver

4-Way Valve

ON/OFF Signal

PRE-DEF.

Sign Display

Indoor

Fan Motor

Louver

ON/OFF Signal

Louver

Motor

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

ECONO.

AC 220/230/240V ~ 50Hz

Relay

RY02

Compressor

RelayRelayRelay

RY01 RY03 RY04

4-Way ValveOutdoor Fan Motor

7. OPERATION DESCRIPTIONS

7-1. FAN ONLY Operation

(MODE of the remote control : FAN ONLY)

(1) During this mode, the rela y RY01 is always

turned off so that only the indoor fan is operated. R Y02 is always turnd on.

7-2. COOL Operation

(MODE of the remote control : COOL)

(1) Compressor, 4-way valve, outdoor fan and

operation display are controlled as shown in Fig. 7-2-1.

1) When the F AN is set to AUTO, the indoor fan motor operates as shown in Fig. 7-1-1.

2) When the F AN is set to LOW, MED, or HIGH, the indoor fan motor operates with a constant

in volume as listed in Table 7-1-1.

OFF

ON ON

OFF

(Room temp. – Set temp.)

Set

temp.

Fig. 7-2-1

(RY02)

(RY01)

Compressor

Common relay

(Room temp. – Set temp.)

Set temp.

28 27 26 25 24

HIGH

MED LOW(+)

LOW

(2) Rela ys RY01 and RY02 are turned on to ener-

gize the outdoor unit, and a cool operation is carried out.

Fig. 7-1-1 Auto setting of air volume

1) When the F AN is set to AUTO, the indoor fan motor operates as shown in Fig. 7-2-2.

Table 7-1-1 Manual setting of FAN SPEED

2) When the F AN is set to LOW, MED, or HIGH, the indoor fan motor operates with a constant

Indication of

FAN SPEED

HIGH Air volume (m

/hr)

RAS-10YKH-E RAS13-YKH-E

in volume as listed in Table 7-1-1.

RAS-10YKH-ES RAS13-YKH-ES

LOW MED

HIGH

*For model : RAS-07YKH-E, RAS-07YKH-ES LOW(+)

(2) Once the setting is made, the operation mode is

memorized in the microcomputer so that the same operation can be effected thereafter simply

400 (430)* 510 500 (490)* 560 600 (550)* 650

(Room temp. – Set temp.)

Set temp.

+4 +3 +2 +1

RY01

OFF

FAN

AUTO

HIGH MED

LOW LOW

(continuous)

by pushing the START/STOP b utton.

Fig. 7-2-2

OFF

(RY04)

(RY03)

4-way valve

Outdoor fan

OPERATION

Manual

According to the set

position

display

– 22 –

(3) Once the setting is made, the operation mode is

memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START/STOP button.

7-2-1. Louver Control

–1

OFF

ON ON

(Room temp. – Set temp.)

4-way valve

(RY04)

Outdoor fan

(RY03)

OPERATION

display

Compressor

(RY01)

Common relay

(RY02)

(Room temp. – Set temp.)

-1

-2

-3

-4

Set temp.

MED

RY01 OFF

MED(-)

LOW(+)

LOW

FAN

Manual

AUTO

According to the set position

(1) By pushing the SET button of the remote control

during the operation, the louver can be set to the desired position.

And the louver position is stored in the microcomputer , the louv ers will be set to the position automatically at the next operation.

(2) When the AUTO button is pushed, the louv er

vertically swings within range of 25deg.

7-3. DRY Operation

(MODE of the remote control : DRY)

(1) Compressor 4-way valve, outdoor fan and

operation display are controlled as shown in Fig. 7-3-1.

ON:6min.

OFF:4min.

7-4. HEAT Operation

(MODE of the remote control : HEAT)

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

operation display are controlled as shown in Fig. 7-4-1.

(Room temp. – Set temp.)

Set temp.

ON:5min.

OFF:5min.

OFF

(RY01)

Compressor

Common relay

OFF

(RY02)

4-way valve

Fig. 7-3-1

• The microprocessor turns the compressor on and off at regular intervals (4 to 6 minutes on and/or off). During the compressor off, the indoor fan will operate in the super lo w position.

• The indoor fan will operate in the AUTO position.

(2) The pattern of operation depending on the

relation between room temperature and set temperature is shown below:

Room temp.

ON:5min.

OFF:5min.

OFF

(RY04)

(RY03)

Outdoor fan

(2) Relays RY01 and RY02 are turned on to ener-

display

OPERATION

Fig. 7-4-1

gize the outdoor unit, and a heat operation is carried out. The indoor fan motor operates as shown in Fig. 7-4-2, when the FAN is set to AUTO.

The motor operates with a constant air volume as listed in Table 7-1-1, when the FAN is set to LOW, MED, or HIGH.

Set temp.+1 Set temp.

Compressor Outdoor fan

Indoor fan

ON ON ON ON

OFF OFF OFF

L.*S.L. S.L.L. L. S.L. L.

Super Low

Fig. 7-3-2

Fig. 7-4-2

(3) Once the setting is made, the operation mode is

memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing the START/STOP button.

– 23 –

7-6. ECONO. Mode

7-7. Current Limit Control

When the ECONO. button is pushed, during COOL and A UT O operation, the OPERATION display is turned off and the ECONO. display is lit and the indoor unit operates quietly and mildly with controlling airflow .

7-6-1. Cooling

(1) In the ECONO. mode, the set temp. by the

remote control is changed automatically as shown in Fig. 7-6-1.

(2) Fan speed → LOW

(˚C)

Set temp. is changed

Set temp.

ECONO. button is pushed

1H 2H TIME0H

The microprocessor 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)

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

RAS-07YKH-E, RAS-10YKH-E, RAS-13YKH-E RAS-07YKH-ES, RAS-10YKH-ES, RAS-13YKH-ES

Input current

13,5A/ 10A I

12,5,A/ 9A I

Compressor

More than I

More than I3 continues for 5 minutes

Outdoor fan

continues for 3 seconds

OFF

Fig. 7-7-1

Fig. 7-6-1

7-6-2. Heating

(1) In the ECONO. mode, the set temp. by the

remote control is changed automatically as shown in Fig. 7-6-2.

(2) Fan speed → LOW

ECONO. button is pushed

1H 2H TIME0H

Set temp.

-1

Set temp. is changed

-2

Set temp. is changed

(˚C)

(2) Current limit control (Heating)

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

RAS-07YKH-E, RAS-10YKH-E, RAS-13YKH-E RAS-07YKH-ES, RAS-10YKH-ES, RAS-13YKH-ES

Input current

13,5A/ 10A I

12,5A/ 9A I

10A/ 8A I

9A/

7.5A I

Compressor Outdoor fan

More than I

More than I3 continues for 5 minutes

continues for 3 seconds

OFF

ON OFF

Fig. 7-7-2

Fig. 7-6-2

– 25 –

7-8. High-Temperature Limit Control

According to the

set position

Indoor fan speed

35 32 30 20

Heat exchanger temperature

(˚C)

U.L. (Ultra Low)

Room temp.

Set temp.

S.L (Super Low)

Room temp.

Set temp.

OFF

According to the

set position

Indoor fan speed

30 25 20

Heat exchanger temperature

(˚C)

U.L. (Ultra Low)

Room temp.

Set temp.

S.L (Super Low)

Room temp.

Set temp.

OFF

(Heating Operation)

7-10. Cool Airflow Prevention Control

(Heating Operation)

The microprocessor detects the indoor heat exchanger temperature so as to prev ent exceeding the condensate pressure.

Control is performed as shown in Fig. 7-8-1.

Heat exchanger temperature

(˚C)

1 ····· Only outdoor fan is turned off.

Compressor,

Outdoor fan

OFF

Fig. 7-8-1

7-9. Low-Temperature Limit Control

(Cooling Operation)

The microprocessor detects the indoor heat exchanger temperature so as to prevent freezing up the indoor heat exchanger .

Control is performed as shown in Fig. 7-9-1 and 7-9-

(1) During the heating operation, the indoor f an

speed is controlled automatically in accordance with the indoor heat exchanger temperature to prevent bl owing the cool air .

Control is performed as shown in Fig. 7-10-1 and 7-10-2.

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES

Fig. 7-10-1

RAS-13YKH-E, RAS-13YKH-ES

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES

Heat exchanger temperature

(˚C)

7 5

Compressor

Less than 5˚C continues

Fig. 7-9-1

RAS-13YKH-E, RAS-13YKH-ES

Heat exchanger temperature

(˚C)

6 2

Fig. 7-9-2

Compressor

Less than 2˚C continues

for 5 minutes

Outdoor fan

OFF

Fig. 7-10-2

(2) As soon as the defrost operation starts, the

indoor fan stops.

Outdoor fan

OFF

– 26 –

7-11. Defrost Operation

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.

7-11-1. Condition to Start the Defrost

Operation

The defrost operation starts whichever below conditions are specified.

(1) When the cumulativ e compressor operation time

is longer than 40 or 90 minutes and difference between the indoor heat exchanger temper ature and the room temperature is less than the specified value. (This value is decided by the microprocessor .) (Control e xample is sho wn in Fig. 7-11-1. In case of B or C, the defrost operation starts.)

(2) When the current limit control or the high tem-

perature limit control is performed for total of 90 minutes.

7-11-2. Defrost Operation Time Control

(1) The heating operation is performed for at least 40

minutes.

(2) The maximum defrost oper ation time is 6 min-

utes. The defrost operation time for the 4th cycle is 10 minutes. (When the outdoor temperature is very low , however, the defrost operation time is 10 minutes.)

minutes40minutes40minutes40minutes

Heating

Defrost

Max 6 minutes 10 minutes

Heating

1 cycle

Defrost

Heating

Fig. 7-11-2

Defrost

Heating

Defrost

(˚C)

Indoor heat exchanger temp.

–Room temp.

40 90

Fig. 7-11-1 (Indoor fan speed : M)

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

minutes.

(2) The defrost oper ation time is 10 minutes .

7-11-3. Ending Condition at Defrost

Operation

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

minutes or 10 minutes.

on and the indoor and outdoor fans are off.

interlocked with the PRE-DEF. lamp. So the PRE-DEF. lamp is off (the fans stop) for about 3 minutes after the START/STOP button is turned on. When the compressor is turned on, the PRE-DEF. lamp comes on. After the heat exchanger is preheated to about 30°C or higher , the PRE-DEF. lamp goes off, and the indoor fan starts.

(min.)

Cumulative compressor operation time

(1) When the compressor current becomes 7,5A or

(2) The defrost operation contin ues f or at most 6

DEFROST LAMP :

• During defrost operation, the PRE-DEF. lamp is

• The compressor start protection timer is

– 27 –

7-12. Auto Restart Function

This unit is equipped with an Automatic restarting facility which allows the unit to restart and resume the set operating conditions in the ev ent of a po wer supply shutdown without the use of the hand control.

The operation will resume without warning three minutes after the power is restored.

The Auto Restart function is set not to work on shipment from the factory, and so it is necessary to set it to function as required.

• When the system is stand-by (not running)

7-12-1. How to Set the Auto Restart

To set the Auto Restart function, proceed as follows: Access the TEMPORARY button located in the lower

right hand corner beneath the hinged front panel of the indoor unit (please refer to section on PARTS NAME). The power supply to the unit must be on the function will not be set if the power is off.

To enable the Auto Restart function, press the TEMPORAR Y button continuously f or three seconds .

The unit will acknowledge the setting and beep three times. The system will now restart automatically.

The abov e Auto Restart settings can be carried out:

OPERATION

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY

• When the system is operating

OPERATION

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY

MOTION

Stand-by

↓

The system starts to operate. The green light will be lit.

↓ about three seconds after

The unit beeps three times. The orange light will be lit.

↓

The system is operating. The orange light is lighting. If the system is not required to run at this time, push the TEMPORARY

button once more or use the remote control and the unit will stop.

MOTION

Operating The green light is lit.

↓

The system stops to operate. The green light is turned off.

↓ about three seconds after

The unit beeps three times.

↓

The system stops. If the system is not required to stop at this time, use the remote control

and to restart.

During subsequent operation, the orange light goes on.

• The Auto Restart function will not accept an instruction if timer operation with the remote control is selected. (Please refer to the section on setting the timer or setting the louver.)

• During louver swing (AUTO) operation, after restarting by the Auto Restart function, the louver s wing stops .

– 28 –

7-12-2. How to Cancel the Auto Restart

To cancel the Auto Restart function, proceed as follows:

Repeat the setting procedure: the unit will ac knowledge the instruction and bleep three times.

• When the system is stand-by (not running)

The system will now be required to manually restart with the remote control after the main supply is turned off.

Cancellation is carried out:

OPERATION

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY

• When the system is operating

OPERATION

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY

MOTION

Stand-by

↓

The system starts to operate. The orange light will be lit.

↓ about three seconds after

The unit beeps three times. The green light will be lit.

↓

The system is operating. If the system is not required to run at this time, push the TEMPORARY

button once more or use the remote control and stop the unit.

MOTION

Operating The orange light is lit.

↓

The system stops to operate. The orange light is turned off.

↓ about three seconds after

The unit beeps three times.

↓

The system stops. If the system is not required to stop at this time, use the remote control

and to restart.

During subsequent operation, the green light is lighting.

7-12-3. In Case of Power Failure during the

Timer Operation

(1) If ON-TIMER operation is reserved with setting of

Auto Restart operation, it is cancelled with power failure. (The OPERATION lamp on the main unit goes on and off to inform of power failure .) In that case, try to reserve ON-TIMER operation once again.

– 29 –

(2) If OFF-TIMER operation is reserved without

setting of Auto Restart operation, the reservation is cancelled with power failure . (The OPERATION lamp on the main unit goes on and off to inform of power f ailure .) In that case, try to reserve OFF-TIMER operation. When Auto Restart operation is set, OFF-TIMER reservation is also cancelled with power failure .

8. INSTALLATION PROCEDURE

8-1. Safety Cautions

For general public use

Po wer supply cord of parts of appliance for Outdoor use shall be more than polychloroprene sheathed fle xible cord (design H05 RN-F), or cord designation 245 IEC 57.

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY. This appliance must be connected to the mains by means of a circuit break er 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.

DANGER

` FOR ELECTRICAL WORKS THE WIRING AND CABLES MUST BE PERFORMED IN COMPLIANCE WITH

NATIONAL WIRING STANDARD OR REGULATION. IF INCORRECT AND INCOMPLETE WIRING IS CARRIED OUT, IT WILL CA USE AN ELECTRICAL FIRE OR ELECTRICAL SHOCK.

` USE THE SPECIFIED CABLE (1,5 to 2,0mm²) AND CONNECT TIGHTLY FOR INDOOR/OUTDOOR

CONNECTION. CONNECT TIGHTLY AND CLAMP THE CABLE SO THA T EXTERNAL FORCE WILL BE ACTED ON THE TERMINAL.

` WIRE ROUTING MUST BE PROPERLY ARRANGED SO THAT CONTROL BOARD CO VER IS FIXED

PROPERLY. ` DO NOT D AMAGE OR SCRATCH THE CONDUCTIVE CORE AND INNER INSULATOR OF THE CABLES. ` DO NOT DEFORM OR SMASH ON THE SURFACE OF THE CABLES. DO NOT PRESS OR FIX THE CORD

AND CABLES FIRMLY WITH STAPLES, etc. ` DO NOT USE THE EXTENSION CABLE FOR POWER SUPPLY CORD OR INTER-CONNECTING CABLE.

NEVER EXECUTE THE CONNECTION OF WIRING WITH OTHER METHOD THAN THE APPROVED ONE.

OTHERWISE, OVERHEAT, SMOKE OR FIRE MAY BE GENERATED BY CONTACT ERROR. ` TURN OFF MAIN POWER SUPPLY AND BREAKER BEFORE ATTEMPTING ANY ELECTRICAL WORK.

MAKE SURE ALL POWER SWITCHES AND BREAKER TURN OFF. FAILURE TO DO SO MAY CAUSE

ELECTRIC SHOCK. ` CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED BY

WRONG WAY, ELECTRIC PARTS MAY BE DAMAGED. ` GROUNDING WIRE WORKS MUST BE CONSTRUCTED IN COMPLIANCE WITH INSTALLATION MANUAL. ` DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE 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 2M.) FROM HEAT SOURCE SUCH AS RADIATORS, HEAT REGISTORS. FURNACE,

STO VES, etc. ` IF A REFRIGERATION GAS LEAKS DURING INSTALLATION, BE SURE TO PERFORM VENTLATION.

IF THE REFRIGERANT GAS COMES INTO CONTACT WITH FIRE, A POISONOUS GAS MAY OCCUR.

WHEN INSTALLING AN AIR CONDITIONER, DO NOT ALLO W AIR OR MOISTURE TO REMAIN IN THE

REFRIGERATION CYCLE. OTHER WISE, PRESSURE IN THE REFRIGERATION CYCLE MAY BECOME

ABNORMALLY HIGH SO THAT A RUPTURE OR PERSONAL INJURY MAY BE CAUSED. ` BE SURE TO USE THE CORD-CLAMPS AND THE ELECTRIC PAR TS COVER TO THE SPECIFIED

POSITION WITH ATTACHED TO THE PRODUCT. MOUNT THE ELECTRIC PARTS COVER FOR CABLES OF

CONNECTING SECTION FIRMLY WITH THE SCREWS.

ENGAGE DEALER OR SPECIALIST FOR INSTALLA TION.

– 30 –

WARNING

• Nev er modify this unit b y removing any of the safety guards or by-passing any of the saf ety interloc k

switches.

• Do not install in a place which cannot bear the weight of the unit.

P ersonal injury and property damage can result if the unit falls.

• Before doing the electrical work, attach an approv ed plug to the pow er supply cord.

And make sure the equipment to be earthed.

• Appliance shall be installed in accordance with national wiring requlations.

If you detect any damage, do not install the unit. Contact your T oshiba dealer immediately.

CAUTION

• Exposure of unit to water or other moisture before installation will result in an electrical short.

Do not store in a wet basement or expose to r ain or water.

• After unpacking the unit, e xamine it carefully f or possib le 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 lev el of the unit or where noise and discharged air might disturb user’s neighbors.

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

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

instructions for proper installation.

UK Plugs and Sockets etc (Safety) Regulations 1994

SI Number 1768

With regard to Schedule 3, Item 7 of the above UK Regulations, this appliance m ust be permanently connected to the fixed wiring of the main electrical supply by means other than the use of an approved 13 Amp. plug-top as outlined in the Regulations.

Electrical work must be carried by suitably qualified persons and in accordance with all relevant safety standards and codes of practice.

We recommend that the power supply f or this appliance is deriv ed from a suitab ly protected dedicated circuit.

(for U.K. only)

– 31 –

8-2. Installation Diagram of Indoor and Outdoor Units

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

For the rear left and left piping

Front cabinet

Front panel

(Attach to the front cabinet)

5 Deodorizing filter

6 Purifying filter

Clip anchor

120 mm or more

Air filter

2 Wireless remote control

Hook

Pan head wood screw

66 mm or more

Hook

8 Remote control holder

Hook

1 Installation plate

120 mm

or more

4 Mounting screw

Shield pipe

Wall

Insert the cushion between the indoor unit and wall, and lift indoor unit to make work easier.

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 or bottom.

Right

100 mm or more

Before install the wireless remote control

• With the remote control cover open, load the batteries supplied correctly, observing their polarity.

Wireless remote control

3 Batteries

Cover

RAS-10YA-ES RAS-10YAH-ES

A 400 * 600 B 45* 100

RAS-13YA-ES *Included RAS-07YKH-E, RAS-07YKH-ES RAS-13YAH-ES

A mm or more

Be sure to use the Electric parts cover

Loop the connective cable (about 100 mm in diameter and 300~350 mm long).

B mm or more

600 mm or more

– 32 –

Extension drain hose (Option: RB-821SW)

600 mm or more

Rear

Bottom

Rear left

Left

Insulation of refrigerant pipes insulates the pipes separately, not together.

6 mm thick heat resisting polyethylene foam

8-3. Installation

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

8-3-1. Optional Parts

Part

code

Parts name

Q’ty

• Use ø8 or ø10 anchor bolts.

• If it is necessary to drain the defrost water from the

outdoor unit, attach plate of the outdoor unit before installing it.

Refrigerant piping

Liquid side : ø6,35 mm Gas side : ø12,7 mm (ø9,52 mm)

Pipe insulating material

(polyethylene foam, 6 mm thickness)

Putty, PVC tapes

For model RAS-13YAH-ES

Each

one

Each

one

The drain nipple is located as shown abov e .

Bottom plate

<Anchor bolt arrangement of outdoor unit> RAS-07YAH-E, RAS-07YAH-ES, RAS-10YAH-E, RAS-10YAH-ES

drain nipple to the bottom

ø25

Drain nipple

Drain hose sold separately or one on the market.

600mm

Air inlet

120mm

301mm

52,5mm

Air outlet

Fig 8-3-1-1 Air outlet

RAS-13YAH-E, RAS-13YAH-ES

600mm

Air inlet

111mm

Drain nipple

Fig. 8-3-2

• Install the provided drain nipple in the hole of the bottom plate of the outdoor unit. (See the abo v e figure.)

• P erform proper drainage processing using a drain hose sold separately or one on the market. (Inner diameter : 16 mm)

• Do not use an ordinary hose on the market, because it tends to get flat and as a result, it prev ents water from draining.

30mm

230mm

Drain nipple

Air outlet

Fig. 8-3-1-2 Air outlet

– 33 –

8-3-2. Installation Parts

Parts with an asterisk (*) are packaged with the outdoor unit.

Part

No.

1 4 7

Name of parts

Q'ty

Part

No.

Installation plate x 1

2 5 8

Wireless remote control x 1

3 6 9

Batteries x 2

Name of parts

Q'ty

Mounting screw ø4x 25 x 6

Deodorizing filter x 1

Purifying filter x 1

Others

Part

No.

Name of parts

Q'ty

Drain nipple* x 1

Remote control holder x 1

Pan head wood screw ø3,1 x 16 x 2

Name

Installation manual

Owner’s manual

This model is not equipped with an extension drain hose.

Option : F or the extension drain hose, use an optionally availab le RB-821SW or commercially av ailab le one .

– 34 –

8-4. Indoor Unit

Indoor unit

Pipe hole

65,5mm

120mm

or more

Thread

Weight

Installation plate

Mounting screw

Pipe hole

65,5mm

66mm or more

Anchor bolt hole

K Installation place

• A place which provides the spaces around the indoor unit as shown in the diagram in section 8-2.

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

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

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

8-4-1. Cutting a Hole and Mounting

Installation Plate

When installing the refrigerant pipes from the rear.

CAUTION

• Direct sunlight to the indoor unit wireless

receiver should be avoided.

• The microprocessor in the indoor unit should

not be too close to r-f noise sources. (For details, see the owner’s manual.)

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

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

• K eep 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.

The center of the piping slot

The center of the pipe hole is above the arrow.

is above the arrow.

Pipe hole

80mm

65mm

40,5

Fig. 8-4-2

(1) After determining the pipe hole position with the

mounting plate (80 mm →), drill the pipe hole (ø65 mm) at a slight downward slant to the outdoor side.

NOTE :

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

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

(Side view) Indoor unit

75˚

Reception range

(Top view)

Remote

control

Fig. 8-4-1

Indoor unit

Reception range

*:Axial distance

45˚

Remote control

*7m

Fig. 8-4-3

– 35 –

(1) Securely fit the installation plate onto the wall b y

screwing it in the upper and low er parts to hook up the indoor unit.

(2) Install the installation plate horizontally in the

wall.

(3) To mount the installation plate on a concrete wall

with anchor bolts, utilize the anchor bolt holes as shown in the abov e figure .

CAUTION

When installing the installation plate with 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 15mm or less

5mm dia, hole

Clip anchor

CAUTION

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

• In case of bloc k, brick, concrete or similar type walls, make holes in the w all.

• Insert clip anchors for appropriate T mounting screws.

NOTE :

• Install the installation plate using 4 to 6 pieces of mounting screw securing four corners with screws .

8-4-2. Electrical Work

(1) The supply v oltage must be the same as the

rated voltage of the air conditioner .

(2) Prepare the power source f or exclusive use with

the air conditioner.

CAUTION

• Use power specified abo v e tab l e.

• This appliance can be connected to the mains

in either of the follo wing two w a ys .

(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 appro ved circuit breaker or switches must be 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.

Mounting screw Ø4 x 25

Fig. 8-4-4

MODEL

Power source 50Hz *220–240V ~ Single-phase Maximum running current 7,5A (4,0A For RAS-07YKH-E, ES only) 12A Plug socket & fuse rating 16A 16A Wiring 1mm2 or more 1,3mm2 or mo re

No adjustment is necessary .

RAS-07YKH-E, RAS-10YKH-E

RAS-07YKH-ES, RAS-10YKH-ES

NOTE :

• Perform wiring works so as to allow a generous wiring capacity .

RAS-13YKH-E RAS-13YKH-ES

– 36 –

8-4-3. Wiring Connection

WARNING

To plug the cable in the plug receptacle, take the following precaution.

THIS APPLIANCE MUST BE EARTHED .

Taking out the power cord

Slitted portion

IMPORTANT

THE WIRES IN THIS MAINS LEAD ARE COLORED IN ACCORD ANCE WITH THE FOLLOWING CODE:

: Brown

: Blue : Green and Yellow

As the colors of the flexible cord of this appliance may not correspond with the colored markings, to identify terminals in your plug, as follows:

Connect BROWN colored core to plug terminal marked letter “L”.

Connect BLUE colored core to plug terminal marked letter “N”.

Connect GREEN AND YELLOW colored core to plug terminal marked Earth Symbol “

-LIVE

-NEUTRAL

-EARTH

Fig. 8-4-5

L N

”.

• Cut off the slitted portion in the side face of the

rear panel to take out the power cord. After this, remove b urrs , sharp edges, etc., to smooth the cut face.

For the air conditioner that has no power cord, connect a power cord to it as mentioned below.

• After removing the front cabinet, remo v e the terminal cover and the cord clamp.

• Connect and secure the power supply cord and secure the cord clamp and the terminal cover .

• Cut the rear panel f ollo wing the cutting mark and put the power supply cord through the notch.

• Be sure to smooth out the notch with a file, etc.

Terminal block

Power supply cord

Cord clamp

Terminal cover

Screw

Vertical air flow louver.

Fig. 8-4-6

How to open the screw cap

• Place your finger on the lower part and push up to open the screw cap .

(1) Open the screw caps and remove the two screws

securing the front cabinet.

(2) Close the screw caps as behind. (3) Open the v ertical airflow louver horizontally b y

hand.

(4) Slightly open the low er part of the front cabinet

then pull the upper part of the front cabinet toward y ou to remov e it from the rear plate .

– 37 –

Screw

Earth line

Fig. 8-4-7

30mm

10mm

40mm

NOTE :

• Use standard wire only.

• Wire type: More than H05-RN-F

Fig. 8-4-8

Screw

Earth line

Wiring of the connecting cable can be carried out without removing of the front panel.

(1) Remov e the front panel.

Fully open the front panel. Disengage the support arm located in the upper center while pushing its handle leftwards, and then remov e the front panel toward you.

(2) Remov e the terminal cov er and cord clamp . (3) Insert the connecting cable (according to local

codes) into pipe hole on the wall.

(4) Take out the connecting cable through the cable

slot on the rear panel so that it is exploded by about 15 cm long in the front side.

(5) Insert the connecting cable fully into the terminal

block and secure it b y screw tightly.

(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 and front panel on the

indoor unit.

Install the front cabinet through the opposite order of “How to remov e the front cabinet”.

When the panel is removed and mounted again, tak e the follo wing actions:

After fastening the two screws, one each at the left and right of the air outlet, be sure to push the upper center Q right end R , left end S and the lower center T of the air outlet, and confirm that no gap is left between the front cabinet and the rear plate.

• If cooling (dry) operation is made without pushing the air outlet, dew can be deposited on the front cabinet surface. In addition a gap between the front cabinet and the rear plate will become wider, spoiling the appearance.

Push Push

Push

CAUTION

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

• Check local electrical codes and also any specific wiring instructions or limitation.

Connecting cable

about 15cm

4 3 2 1

NOTE :

• Use stranded wire only.

• Wire type:More than H05 RN-F

Terminal block

Screw

Cord clamp

Connecting cable

Screw

Terminal cover

Fig. 8-4-9

50mm

10mm

40mm

Earth line

For a five conductor cable

Fig. 8-4-10

Earth line

Push

Fig. 8-4-11

8-4-4. Piping and Drain Hose Installation

• After scribing slits of the front panel and the rear panel by a knif e or a marking-off pin, cut them b y a pair of nippers or the like.

Slit (front panel)

Slit (rear panel)

Fig. 8-4-12

• After scribing the slit of the front panel and slit in the lower part of the rear panel by a knife or a marking-off pin, cut them by a pair of nippers or the like.

Slit (front panel)

Slit (rear panel)

Fig. 8-4-13

– 38 –

<Left-hand connection with piping>

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

Bend the connection pipe within a radius of 30 mm.

To connect pipe after installation of unit (figure)

(To the forefront of flare)

196mm

Side of liquid flow

96mm

Side of gas flow

Outward form of indoor unit

R 30mm (Use polisin or the like for bending pipe.)

43mm

Use the handle of screwdriver,etc.

8-4-5. Indoor Unit Installation

(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 pushing the indoor unit onto the w all b y the

lower part, hook it up on the installation plate by the lower part. Pull the indoor unit tow ard you by the lower part to confirm that it is firmly hooked up on the installation plate.

(1)

(2)

Hook

Hook here

Installation

plate

Push

Fig. 8-4-14

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 auxiliary pipes and wrap the facing tape around them.

CAUTION

• Bind the auxiliary pipes (two) and connecting cable with f acing 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 doub le-taping at the joint, moreover, seal the joint with the vinyl tape, etc.

• Since dewing results in a machine troub le, 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

Fig. 8-4-15

• For detaching the indoor unit from the installation plate pull the indoor unit toward y ou while pushing its bottom up by the specified parts.

Push Push

Fig. 8-4-16

– 39 –

8-4-6. Drainage

(1) Run the drain hose sloping downwards.

NOTE :

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

Do not rise the drain hose.

50 mm or more

Do not put the drain hose end into water.

Fig. 8-4-17

(2) Put water in the drain pan and mak e sure that the

water is drained outdoors.

(3) When connecting e xtension drain hose , insulate

the connecting part of extension drain hose with

shield pipe.

Shield pipe

Do not form the drain hose into the wared shape.

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

8-5. Outdoor Unit

KInstallation place

• A place which provides the spaces around the outdoor unit as shown in the diagram in page 7.

• A place which can bear the weight of the outdoor unit and does not allow an increase in noise leve l 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 bloc k a passage.

• When the outdoor unit is to be installed in an

elevated position, be sure to secure its f eet.

• An allowab le length of the connecting pipe is up to :

**RAS-10YKH-E, RAS-10YKH-ES : 10 m

RAS-13YKH-E, RAS-13YKH-ES : 15 m

• An allowable head level is up to :

**RAS-10YKH-E, RAS-10YKH-ES : 5 m

RAS-13YKH-E, RAS-13YKH-ES : 6 m

** Included RAS-07YKH-E, RAS-07YKH-ES

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

Drain hose

Inside the room

Extension drain hose

Fig. 8-4-18

CAUTION

Arrange the drain pipe for proper drainage from the unit.

Improper drainage can result in damage to property.

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.

Wall

Drain guide

CAUTION

(1) Install the outdoor unit without anything

blocking the air discharging.

(2) When the outdoor unit is installed in a place

exposed alwa ys to a strong wind lik e a coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield.

(3) Specially in windy area, install the unit to

prev ent the admission of wind.

Strong wind

Fig. 8-5-1

Space for pipes

Fig. 8-4-19

– 40 –

CAUTION

90˚

Obliquity

Roughness

Warp

Die Pipe

Installation in the following places ma y result in trouble. Do not install the unit in such places.

• A place full of machine oil.

• A saline place such as coast.

• A place full of sulfide gas.

• A place where high-frequency wav es are lik ely

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

8-5-2. Refrigerant Piping Connection

(1) Cut the pipe with a pipe cutter.

Fig. 8-5-2

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

8-5-1. Required Tools for Installation Work

1) Philips screw driver

2) Hole core drill (65mm)

3) Gaugramanifold

4) Spanner

5) Pipe cutter

6) Knife

7) Reamer

8) Gas leak detector

9) Tape measure

10) Thermometer

11) Mega-tester

12) Electro circuit tester

13) Vacuum pump

14) Hexagonal wrench (5mm)

15) Torque wrench

Outer

dia.

6,35mm 9,52mm 12,7mm

A (mm) R22

Imperial Rigid

1,0 ~ 1,5 0,5 ~ 1,0 1,0 ~ 1,5 0,5 ~ 1,0 1,5 ~ 2,0 0,5 ~ 1,1

A (mm) R410A

Imperial Rigid

1,5 ~ 2,0 1,0 ~ 1,5 1,5 ~ 2,0 1,0 ~ 1,5

Fig. 8-5-3

Align the centers of the connecting pipes and tighten the flare nut as far as possib le 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 crac k depending on the installation conditions.

Outer dia.

6,35mm 9,52mm 12,7mm

Half union or packed valve

Externally threaded side

Use a wrench to secure.

Tightening touque

N•m (kgf•m)

16 ~ 18 (1,6 ~ 1,8) 30 ~ 42 (3,0 ~ 4,2) 50 ~ 62 (5,0 ~ 6,2)

Flare nut

Internally threaded side

Use a torque wrench to tighten.

Fig. 8-5-4

– 41 –

8-5-3. Vacuum Pumping

5mm

Flare nut

Stopper

Wrench

Valve body

Valve stem

Service port cap

Service port

Valve stem cap

INFORMATION

In order to prev ent an y other refrigerant from being charged accidentally, each port of the manifold has been changed in shape.

Differences in Port Size between Conventional R22 and R410A

Manifold for R22 Manifold for R410A

Port size

AIR PURGE

Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump.

Do not use the refrigerant in the outdoor unit. For details, see the man ual of v acuum pump .

(1) Connect the charge hose (A) from the manif ol d

valv e to the charge inlet of the gas side pac k ed valve.

(2) Connect the charge hose (B) to the port of

vacuum pump .

(3) Open fully the low pressure side handle of the

manifold v alve . (4) Operate the vacuum pump. (5) Close the low pressure side handle of manif ol d

valv e after v acuumizing and stop the v acuum

pump.

Continue vacuumizing more than 15 minutes and check the pressure gage indicates –0,1MPa (–76 cmHg).

7/16 UNF 1/2 UNF

20 threads per inch 20 threads per inch

Indoor unit

Pressure gage

Low pressure side handle

Charge hose (A)

Outdoor unit

Gas (Ø9,52)

Manifold valve

Service port

Lo Hi

High pressure side handle

Charge hose (B)

Liquid (Ø6,35)

Fig. 8-5-5

CAUTION

• KEEP IMPORTANT 4 POINTS FOR INSTALLATION (PIPING W ORK)

(1) Take awa y dust and moisture (Inside of the

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

V A CUUM PUMP. (4) Check gas leak (connected points)

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

• Securely tighten the valve stem cap with the wrench or like.

• Valve stem cap tightening torque is as follows;

Gas pipes side (Ø12,7) : 49 ~ 62 N•m (5,0 ~ 6,2 kgf•m) Gas pipes side (Ø9,52) : 30 ~ 42 N•m (3,0 ~ 4,2 kgf•m) Liquid pipe side (Ø6,35): 16 ~ 18 N•m (1,6 ~ 1,8 kgf•m) Service port cap : 9 ~ 10 N•m (0,9 ~ 1,0 kgf•m)

Packed valve

(6) Open the stems of pack ed valves A and B all the

way .

(7) Securely tighten the stem cap to each of the

packed valve stems.

Note : Service port at Gas pipes valve only.

Fig. 8-5-6

– 42 –

8-5-4. Wiring Connection

(1) Remove the electric parts cover from the outdoor

unit.

(2) Connect the connecting cable to the terminals as

identified with their respective matched numbers on the terminal block of indoor and outdoor units.

(Strip the sheath of connecting cable with follo wing stripping length to and insert into the terminal block.)

(3) When connect the connecting cable to outdoor

unit terminal, make a loop as shown in the installation diagram of indoor and outdoor unit, to prev ent water coming in the outdoor unit.

(4) Insulate the unused cords (conductors) with

water coming in the outdoor unit. Process them so that they do not touch any electrical or metal parts.

8-6. Others

8-6-1. Gas Leak Test

Flare nut connections (indoor unit)

Electric parts cover

Flare nut connections (Outdoor unit)

Valve stem cap connection

Service port

Terminal block

70mm

10mm

4 3 2 1

Earth line

10mm

60mm

Terminal screw

Connecting cable

1234

Screw

Fig. 8-5-7

CAUTION

• Wrong wiring connections may cause some electrical parts to burn out.

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

• Every wire must be connected firmly.

NOTE :

• Wipe type : More than H05 RN-F

Cord clamp

Fig. 8-6-1

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

8-6-2. Test Operation

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

TEMPORARY button

TEMPORARY

Fig. 8-6-2

8-6-3. 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 f ailure .

– 43 –

INFORMATION

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

See detail in section 7-7. Auto Restart Function.

9. TROUBLESHOOTING CHART

TROUBLESHOOTING PROCEDURES :

• Following details of “What to be pre-chec k ed first”, make sure of the basic items.

• When there is no trouble corresponding to above, check in detail the f aulty parts following “How to judge faulty parts by symptoms” later.

9-1. What to be Prechecked First

9-1-1. Power Supply Voltage

The line voltage must be A C 220–240V. If the line voltage is not within this range, this air conditioner ma y not work normally.

9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units

The indoor unit is connected to the outdoor unit with 5 cables. Make certain that the indoor and outdoor units have been connected properly, with terminals assigned the same numbers wired to each other. If the connectors are not connected as specified, the outdoor unit will not operate normally, or OPERA TION lamp and TIMER lamp will blink (5Hz).

9-1-3. Misleading but Good Operations (Program Controlled Operation)

The microcomputer performs the operations listed in Table 9-1-1 to control the air conditioner. If a claim is made on the operation, check whether it corresponds to the contents in the Table 9-1-1. If it does, it is an indispensab l e operation for the control and maintenance of the air conditioner: it is not a f ailure of the unit.

Table 9-1-1

No. Operation of air conditioner Description

When the power plug or the power cord of the indoor unit is inserted,

the OPERATION lamp on the setting indication part blinks.

Fan speed remains unchanged in

the dry mode. The compressor will not switch on

or off even when the thermo. con trol is operated in the dry operation.

The PRE-DEF. lamp comes on

when the heating operation is started.

The outdoor fan stops once in the

while during the heating operation.

Compressor does not work though

room temperature is in the range of turning the compressor on.

During automatic oper ation, the

operation mode changes. During automatic operation

mode, the fan only operation continues.

When the power is turned on, the

operation starts automatically.

The OPERATION lamp blinks, indicating that power is turned on. If this happens, pus h the START/STOP button once to cause the lamp to stop blinking. A power outage also causes the lamp to blink.

Fan speed is automatically controlled in the dry mode.

In the dry mode, the compressor goes on and off at regular interval s, independent of the therm o. control.

The PRE-DEF. lamp comes on during defrost oper ation and when the indoor heat exchanger temperature is low when the heating operation is started. At this time, the indoor fan is stopped to prevent cold air from drifting into the room.

• When the indoor heat exchanger temperature is high, the outdoor fan may be stopped by the high-temperature limit control operation.

• When the compressor current is large, the out door fan may be stopped by the current limit control opera tion.

Compressor does not work while the compressor restart delay (3-min.) timer is active. The same is true after power is turned on, as the time is still active.

After selection of the cooling and heating operation, the operation mode is selected again when the compres sor off mode continue s f or 15min. according to the room temperat ure.

When the r oom temperature is withi n setting temperature ± 1°C the fan only mode is selected.

When the auto restart controlling is selected, the oper ation is performed a utomaticall y in the pr evious ope ration mode after the power supply has been turned on.

– 44 –

9-2. Primary Judgement of Trouble Sources

9-2-1. Role of Indoor Unit Controller

The indoor unit controller receives the operation commands from the remote control and assumes the f ollo wing functions.

• Measurement of the draft air temperature of the indoor heat exchanger by using the thermo sensor (TA).

• Louver motor control

• Control of the indoor fan motor operation

• Control of the LED display

• Control of the outdoor unit compressor, 4-WAY VALVE and the outdoor fan motor .

9-2-2. Display of Abnormalities and Judgement of the Abnormal Spots

The indoor unit of this machine observes the operation condition of the air conditioner and displays the contents of the self-diagnosis as block displays on the display panel of the indoor unit.

Table 9-2-1

Block display Description

A OPERATION display blinking (1 Hz) Power failure (when pow er is ON)

B OPERATION display blinking (5 Hz) Thermo. sensor (TA) short/break

C OPERATION display blinking (5 Hz) Heat exchanger sensor (TC) short/break

D OPERATION display blinking (5 Hz) Indoor fan lock, abnormality of indoor fan

E OPERATION display blinking (5 Hz) Indoor P.C. board failure

F OPERATION, and TIMER Display blinking (5 Hz)

G OPERATION, TIM ER and PRE-DEF. display b l inki ng ( 5 Hz)

H OPERATION, TIMER and PRE-DEF. display bli nking ( 5 H z) Compressor trouble

Wrong wiring of connecting cable Thermal fuse is blown

• Gas shortage, other refrigerant cycle trouble

• Heat exchanger sensor open/bre ak/ short

• Overload relay or thermostat for compressor troubl e

(1) Judgement from defective operation or abnormal operation

Table 9-2-2

Symptom Check Primary judgement

The indoor part (including the remote control) is defective.

No reaction on remote control operation

Turn off the power once, turn it on again and try to operate the remote control again.

Rem ote control i s not po ssible.

Remote control is possible. OK.

The outdoor fan does not rotate

The compressor oper ates.

The compressor does not operate. The inside part is defective.

The outdoor part is defect ive. (outdoor fan motor)

– 45 –

(2) Self-diagnosis with remote control

With the indoor unit control, self-diagnosis of protective circuit action can be done b y turning the remote control operation into service mode, operating the remote control, observing the remote control indicators and checking whether TIMER lamp blinks (5 Hz).

[ METHOD ]

Push the [CHK] button with a thin tip of pencil or others. The remote control display shows “ ”.

MODE FANTEMP.

AUTO

COOL

DRY

HEA T

FAN ONLY

Hr.ON OFF TIMER

TEMP.

START/STOP

AUTO

LOW

MED.

HIGH

2 3

SET

AUTO

MODE

ACL CHK

TIMER

ON OFF RSV CNL

WH-E1BE

FAN

ECONO.

Push “ ” key of TEMP. one by one. The receiving beep “Pi!” is heard, and the timer lamp of the air conditioner blinks. (5 times for 1 sec.)

Operating “ ” key, the 35 check codes from “ ” to “ ” are sent.

To reduce the check code number, push the “ ” key of TEMP. —> <—> <—> <--

--> <—> <---> <—

If the check code agrees with the error code, the receiving beep continues ringing “Pi, Pi, Pi ...” (for approx.10 sec.), and all the LED of air conditioner blink. (5 times for 1 sec.)

[ To release the servicing check ]

1. After finished servicing check, push [START/ STOP] button and confirm to change main body

and remote control on normal operation mode.

2. After finished servicing check, disconnect plug (or turned off circuit breaker) of main body due to reset operation memory of microcomputer but in case of found the check code, it's stoked in microcomputer memory . Therefore, the memory of check code can not delete after disconnected plug (or turnrd off circuit breaker).

3. After finished repair the main unit, clear the memory of microcomputer.

To clear the memory, need to use another service check remote control.

(service part No. 43T69058).

Push the [START/STOP] button. Display screen returns to one before check. The servicing check operation can be also released by [ACL] button.

1. Push the button (rear bottom ) of the remote control with a tip of pencil for more than 3 seconds.

Make sure the setting temperatur “

” is dis-

played on.

2. Adjust the check code to “

”.

(Use [AUTO] b utton and TEMP. , button

3. Push [SET] button. (Data before operation is directly transferred.)

4. Push [ON/OFF] button. (Transfer the signal to main unit.)

– 46 –

Table 9-2-3

Block level Diagnosis function

Check

code

Block

Indoor P.C. board

Check

code

Symptom

Thermo. sensor short/break.

Heat exchanger sensor short/break.

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

Abnormality of other indoor unit P.C. board.

Air

Conditioner

status

Continued operation

All off Indicated when

Condition

Indicated when detected abnormal

detected abnormal

Judgment and action

1.Check thermo. sensor.

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

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 motor. (Refer to trouble shooting flow charts.)

Replace P.C. board.

Cable connectio n/Therm al fuse Refrigera nt system

Contents detected b y the check codes “ ” to “ ” are stored in memo ry of the micro computer ev en if the power s uppl y is turned off. Therefore, contents of oper ations in the past are all displayed.

1) Wrong wiring or disconnection of connective cable.

2) Thermal fuse cut off.

1) Overload relay or thermostat for compressor break.

Compre s sor break down.

All off Indicated when

All off

detected abnormal

Indicated when detected abnormal

1.Check connective cable correct if wiring is wr ong.

2.Check the rmal fuse and Terminal blocks.

3.If it is OK, chec k P.C. board.

1. If overload r elay and themostat for compressor are OK, check refrigerant cycle.

2.If refrigerant cycle is OK, check P.C. board.

3.If heat exchenger sensor is OK, check ov erload relay and thermostat for compressor.

1.Check compressor.

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

– 47 –

9-3. Troubleshooting Flowcharts

9-3-1. Power can not be Turned on (No Operation at All)

(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.

Does the OPERATION

lamp blink?

YES

Does the power turn

on by pushing the

[START/STOP] button

of the remote control?

YES

Does the fuse

(F01) blow?

YES

Does the transmission

control flash normally and

(No problem)

Parts (R21, R22, SG01,

C15, C01, DB01, C02,

Q01, T01) are defective.

indicator of remote

transmit certainly?

YES

Operation

Check Items

Main cause

Countermeasure

Symptom

NONO

Remote control

is defective.

Replace the remote control.

Does the thermal

(Under PF. Terminal)

Is the indication voltage

(DC12V or 5V) of main

PC board correct?

Is the voltage

across C02 measured

DC310V~340V?

YES

Is the secondary

voltage of SW trans-

former (T01) measured

DC35V, DC12V,

and DC7V ?

YES

fuse blow?

YES

Refer to the paragraph

“Pre-check”, or defective circuit before power PC board block.

Shut off the power supply once, and turn

it on again after disconnecting the motor connector CN10

YES

Wrong wiring of

AC cord or connecting

cable is defective.

Does the CN13

connector the wrong

connecting?

Is the secondary

voltage of SW

transformer measured

DC35V, DC12V,

and DC7V?

YES

P.C. board

is defective.

SW transformer

(T01) or Tr (Q01)

for power supply

is defective.

Replace the thermal fuse set. Check connection.

Replace the main P.C. board.

Re-wiring the cable.

Replace the main P.C. board.

Motor is defective.

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

age of the motor .

– 48 –

9-3-2. Power can not be Turned on after Replacing Indoor P.C. Board

Connect the AC

Power supply

Does the OPERATION

lamp blink?

YES

Is it wired as shown

in Figure below?

YES

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YAH-E, RAS-10YAH-ES

Black

White

1 2 3 4

Indoor terminal block

Blue

N L

Power terminal block

Brown

RY01

P.C. board

RY02

Return the wiring of the power relay is returned to the normal procedure.

To the paragraph of “No Power turns on”.

Bind Band

Double winding

T02

RAS-13YKH-E, RAS-13YKH-ES

Black

White

1 2 3 4

Indoor terminal block

Blue

N L

Power terminal block

Brown

– 49 –

RY01

P.C. board

RY02

T02

9-3-3. Outdoor Unit does not Operate

Shut off the power supply from AC outlet once and turn it on after 5 seconds.

Does the OPERATION lamp blink?

YES

Does the power turn on by

pushing the [START/STOP] button

of the remote control?

YES

Is AC 220–240V

supplied between terminal block

1 - 2 ?

YES

Is cable connection

between indoor and outdoor

units correct?

YES

Check items as following procedure in 9-3-4, 9-3-5, 9-3-6.

See “Power can not be turned on”.

Relays (RY01, RY02) or IC31 or IC30 is failure.

Correct cabling between indoor and outdoor units.

Replace the P.C. board.

– 50 –

9-3-4. Only Compressor does not Operate

Shut off the power supply from AC outlet once and turn it on after 5 seconds.

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

( 1 - 2 ) AC 220–240V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

Is the voltage across the outdoor terminal

( 1 - 2 ) AC 220–240V?

YES

Are all the cords for compressor normal?

YES

See “Power can not be turned on”.

Relays (RY01, RY02) 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.

Replace the P.C. board.

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

Compressor starts but

it stops after a while?

YES

Is the gas quantity normal?

(Check the pressure)

YES

Compressor is defective

Compressor is defective.

Capacitor is defective.

Overload relay is defective.

Compressor is defective.

Gas shortage (Gas leakage)

– 51 –

9-3-5. Only Outdoor Fan does not Operate

Shut off the power supply from AC outlet once and turn it on after 5 seconds.

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

( 2 - 4 ) AC 220–240V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

Is the voltage across the terminal

( 2 - 4 ) AC 220–240V?

YES

Are all the cords for outdoor

fan motor normal?

YES

See “Power can not be turned on”.

Relays (RY02, RY03) 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.

Replace the P.C. board.

Is the outdoor fan motor winding normal?

(Check the winding resistance)

YES

Is the capacitor for compressor normal?

YES

Outdoor fan motor is defective.

Capacitor for outdoor fan motor is defective.

– 52 –

9-3-6. Only 4-Way Valve does not Operate (During Heating Operation)

Shut off the power supply from AC outlet once and turn it on after 5 seconds.

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 terminal

( 2 - 3 ) 220-240 V?

YES

Is cable connection between indoor

and outdoor units correct?

YES

Is the voltage across the terminal

( 2 - 3 ) 220-240 V?

YES

Is the wiring of solenoid coil

for 4-way valve normal?

YES

See "Power can not be turned on".

Relays (RY02, RY04) or IC31 or IC30 is failure.

Correct cabling between indoor and outdoor units.

Cables between indoor and outdoor units are defective.

Solenoid coil is defective.

Replace the P.C. board.

4-way valve is defective.

– 53 –

9-3-7. Only the Indoor Fan does not Operate

< Check procedure >

Shut off the power supply once.

Turn the power supply.

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?

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

Replace the P.C. board.

Does connecting

terminal, connecting

NO NO

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) or 12V power circuit failire (D03, Q03).

Thermal fuse operated due to prevent temperature rising cause of incompleted connecting.

YES

Normal

Is the rotation signal

(DC+5V-0V) output between 4

(blue lead wire) and 2 (black

lead wire) of the motor connector

(CN10) when rotating the cross

flow fan by hand in no operating

status? (2 pulses/one turn)

YES

Replace the control P.C. board.

– 54 –

Replace the P.C. board.

Replace the fan motor

Replace connecting the cable (or power cord), thermal fuse and terminal block.

9-4. How to Check the Remote Control (Including the Indoor P.C. Board)

There is no beep from the indoor unit.

Push the START/STOP 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

Is there any

thyristor

fluorescent light

near by?

YES

Does the transmission

YES

Is operation

possible when setting

the temporary switch of the

air conditioner main unit to

“TEST RUN” or

“TEMPORARY AUTO”?

possible when the

transmitter is moved

nearer to the infrared

signal receiver of the

indicator blink?

Is operation

air conditioner?

YES

Battery life

Short-circuit the metal terminal at the side of the battery compartment (all-clear terminal) with a pencil. (wait about 10 seconds)

Push the START/ STOP button

Does the

transmission

indicator light?

YES

Avoid direct sunlight.

Keep the air

conditioner away

from thyristor

fluorescent light.

YES

Can any signal tone

be heard in a transistor

radio when transmitting

within 5cm distance

from the radio?

YES

P.C. board is failure.

Replace

P.C. board.

After battery replacement,

Note:

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

– 55 –

Replace the batteries

Normal

Is there any

beep and

operation?

YES

Remote control

is failure.

Replace remote control.

9-4-1. 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 f or disconnection, b urning, 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, b uzz er drive circuit and buzzer.

b. Infrared rays receive and indication

parts:

Infrared rays receiv e unit and LED.

– 56 –

(3) Checking procedure

Table 9-4-1

No. Procedure Check Point (Symptom) Causes

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.

1. Is the fuse blown? 1. • Application of shock voltage.

• Overload by short-circuit of the parts.

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 1-5 of right column are not necessary to perform.

Make the operation status by pushing

once the START/STOP button, except the status of [FAN ONLY], [ON TIMER].

4 Start the operation with the system

which the tim e of th e res t art delay timer is shortened.

Make the operation status by

pressin g onc e the S TART/STOP button.

1. The time of th e restart delay timer is shortened.

2. Cool operation

3. Air volume [AUTO]

4. Make the setting temperature lower enou gh th an room temperature.

5. Continuous operation.

Voltage check

1. Between TP1 (AC 220–240V)

2. Between + and – of C02 (DC 310 ~ 340V)

3. Between 12V

4. Between 5 V and GND

Voltage check

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

2. Between No. 1 and 2 of connecting cable terminal block. (AC 220–240V)

1. All indicators light for 3 sec..

2. Indicators do not in dicate normally after approximate 3 se c..

1. Compressor does not operate.

2. OPERATION lamp blinks.

and TP2



and GND



1. • AC power cord is defective.

• Poor contact of the terminal plate.

• Miss wiring of the power relay.

2. • Capacitor (C01, C15) is defective.

• Line filter (L 01) is defective.

• Resistor (R01) is defective.

• Diode (DB01) is defective.

3. Q01, IC02, T01, F03 are defect ive.

4. Q01, IC02, T01, F02, Q29, IC03 are defective.

1. Breaking wire of the relay coil, defective relay driver. (IC31)

2. Poor contact of re lay.

Defective indicator, or poor housing

assembly. (CN13)

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

2. Poor contact of th e he at exc han ger se ns or. (The connector is disconnected.) (CN01)

3. Heat exchang er s ens or, ma in P.C. board are defective. (Refer to Table 9-4-2 for the judgment of defective resistance values.)

4. Main P.C. board is defective.

6 The status of No. 5 is continued, and

make the following condition.

1. Heat operation

2. Make the setting temperature higher eno u gh t h an ro om temperature.

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

1. Compressor does not operate.

2. OPERATION lamp blinks.

1. Motor does not rotate. (The key operat io n is acc ep ted.)

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

– 57 –

1. The temper at ur e of t h e hea t exc hanger is abnor ma lly high.

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

3. The heat exchanger sensor is defective. (Refer to Table 9-4-2 for the judgment of defective resistance values.)

4. P.C. board is defective.

1. Poor contact of th e mo t or con nec tor.

2. P.C. board is defective.

9-4-2. P.C. Board Layout

Top View

Bottom View

– 58 –

Table 9-4-2 Approximate value of the sensor (thermistor) resistance (TA, TC)

(= kΩ)

Temperature

Sensor

0°C10°C20°C25°C30°C

Themo. Sensor 35,8 20,7 12,6 10,0 7,92

9-4-3. How to Reduce the Operation Time of

the Anti-Restart Timer

(1) Set the operation mode, temperature, and air

flow rate to be applied with the timer short mode.

(2) Push the [CNL] button while keeping [CHK]

button pushed. In this case, the check mode is released, and the timer short mode is waited.

(The status is kept e ven if [CHK] and [CNL]

START/STOP

AUTO

MODE

TEMP.

SET

ACL CHK

TIMER

FAN

ECONO.

buttons are released.)

(3) Pushing [START/STOP] b uttons sends oper ation

code + timer short code.

ON OFF RSV CNL

WC-E1BE

(4) The timer short mode is released by only a

transmission. Therefore, repeat steps from (2) to perform the timer short mode again.

[CHK] button

[CNL] button

Fig. 9-4-1

– 59 –

10. PART REPLACEMENT

10-1. Indoor Unit

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES, RAS-13YKH-E, RAS-13YKH-ES

No. Part name Procedure Remarks

Front panel 1) After stopping the operation of the air conditioner, be

sure to turn off the circuit breaker or disconnect the power plug from the AC wall socket.

2) Open the screw caps and remove the two screws fixi ng the front panel.

3) Close the screw caps as they wer e.

4) Open the horizontal louver right below by your finger.

5) Open the lower side of front panel until it touches the horizontal louver, and remove it from the indoor unit by turning it.

1) Fix the two screws to secure the front panel.

2) Close the screw caps as they wer e.

3) Press four places where are the center, right end, left end and lower portions of the air outlet.

4) Check the gap between the front panel and the main unit.

If cooling or drying operation is performed without pressing the center of the air outlet, the surface of the front panel may be covered with frost and have a dew drop.

Electrical part

assembly

Drain-pan

assembly

1) Perform the process Q above .

2) Remove the electrical part cover by press ing the nail located on upper portion of the electrical part cover.

3) Remove the drain guide .

4) Remove the screw securing to the end pl ate of the heat exchanger.

5) Remove the connector (3p +3p) for the fan motor and the connector (6p) for the louver motor from the P.C. board assembly.

6) After unhooking the electrical part base by pressing the

nail located on its low er portion, draw the electrical

fixin part base out toward

7) Pull the TC sensor out from the holder of the heat exchanger. (Keep it with the holder of TC sensor.)

8) Dress the connecting cable securely as shown in t he right illustration. (Improper dressing will cause wa t er leakage.)

1) Perf orm the process R above .

2) Remove the drain-pan b y press ing th e f our hooks downwards. (Keep it with the drain hose. )

ou to remove it from the mai n un it.

Drain guide

Upper nail

Screw

Lower fixing nail

When assembling dress the connecting

cable in loop and put it into the drain-pan.

Electrical

part cover

TC-sensor

Hooks

– 60 –

No. Part name Procedure Remarks

Horizontal grille

Note:

The horizontal grille can not be removed without removing the louver motor.

Heat exchanger 1) Perform the process S.

Cross flow fan 1) Perform the process S.

1) Perform the process

2) Remove the screw fixing the louver m ot or, and remove the louver motor.

3) Re move the shaft of the horizontal grille fr om th e drain-pan.

2) Remove the pipe holder from the rear side of main unit by removing the screw.

3) Unhook the hooks fixing the left side of the heat exchanger and remove the screw fixing it, then remove the right side of the end plate from the rib fixing the main unit by sliding the heat exchanger slightly to the right side.

2) Loosen the set screw of the cross flow fan.

3) Remove the screw f ixing the shaft bearing base.

4) Lift slightly up the left side of the heat exchanger, and pull the shaft bearing base out left downwards.

Louver motor

Horizontal grille

Hooks fixing the

heat exchanger

Shaft bearing

base

Screw fixing the

heat exchanger

Hook Screw

Screw

Hooks

Pipe holder

When assembling it, fix it with the set screw on the position where the gap between the rear plate surface and the left end surface of the cross flow fan is 6 ~ 7mm.

Shaft bearing 1) Perform the process V above .

2) Remove the shaft bearing from the sha ft bearing base.

• If a part of the shaft bearing is protruded from the housing, assemble it after pushing its portion into the correct position in the housing.

Fan motor 1) Perform the process U above .

2) Perform the process

3) Remove the left and right motor bands.

4) Remove the fan motor after pulling the cr oss flow fan out sliding it left and right.

-2) above.

Shaft bearing

6~7m

Ribs

Cross flow fan

Rear plate

Mount the fan motor as shown in figure below when assembling.

Put the end of lead wire at the portion between two ribs.

– 61 –

10-2. Microcomputer

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YKH-E, RAS-10YKH-ES, RAS-13YKH-E, RAS-13YKH-ES

No. Part name Procedure Remarks

Common

procedure

Thermal fuse

replacement

1) Turn the power supply off to stop the operation of airconditioner, and disconnect the power cor d from the A C supply.

2) Remove the front pan el.

•Remove the two fixing scr ews. (Ø4 x 14 l)

3) Remove the electrical part base.

1) Perform the process Q above .

2)Remov e terminal cover (Up) (Down).

3) Disconnect the terminal bloc ks connected with the connecting cab le, and the pow er cord fr om base-E-parts by removing the screws.

4) Remove the thermal fuse (77°C) from base Electricparts.

Replace the thermal fuse, terminal block, power cord, microcom put er a ss’ and the power supply P.C. board ass’y.

– 62 –

10-3. Outdoor Unit

CompressorCompressor

RAS-07YKH-E, RAS-07YKH-ES, RAS-10YAH-E, RAS-10YAH-ES

No. Part name Procedure Remarks

Common

procedure

Capacitor for

compressor

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

2) Remove Electric parts cover . (1- ST1 T Ø4 x 10 l)

3) Remove the cord clamp (2- ST2T Ø4 x 12 l ) and remove the connecting cable.

4) Remove the front cabinet. (7- ST1T Ø4 x 10 l with nylon wash er)

• Pull the front lower portion toward you, and remov e it pulling out upward.

1) Remove the fixing screw the capacitor band. (1- ST2T Ø4 x 8 l)

2) Remove the cable connected to the terminal.

Remove 7-ST1T

4 ´10

2-ST2T

4 ´12

1-ST1T

4 ´10

Refer to [ Specifications of Electrical Parts] in page 11.

Capacitor for

fan motor

Overload

relay

1) Remove the fixing screw of the capacitor band . (1- ST2T Ø4 x 8 l)

2) Remove the cable connected to the terminal.

1) Per form the process Q above .

2) Remove terminal cov e r of compressor.

3) Remove overload relay holder and pul l overload relay up.

4) Remove Fustons of leads.

Same as above.

– 63 –

RAS-13YAH-E, RAS-13YAH-ES

No. Part name Procedure Remarks

Common

procedure

Capacitor for

compressor

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

2) Remove E-parts cover. (2- ST1T Ø4 x 10 l)

3) Remove the cord cl am p (2- ST2 T Ø4 x 12 l) and remove the connecting cable.

4) Remove the front cab ine t. (7- ST1T Ø4 x 10 l with nylon wash er)

• Pull the front lower portion toward

ou, and remove

it pulling out upward.

1) P er form the process Q above .

1) Remove the fixing screw of the capacitor band. (1- ST2T Ø4 x 8 l)

2) Remove the cab le connected to the terminal.

2-ST2T

Ø4

Remove 7-ST1T

4 ´10

2-ST1T

Ø4

Capacitor for

fan motor

Overload

relay

Thermostat

bimetal

1) P er form the process Q above .

1) Remove the fixing screw. (1- ST2T Ø4 x 8 l)

2) Remove the cab le connected to the terminal.

1) P er form the process Q above .

2) Remove Fast ons of leads.

3) Remove the fixing screw. (1- ST2T Ø4 x 10 l)

4) Pull OL-Holder up and remove O verlord relay from OL-Holder.

1) P er form the process Q above .

2) Remove terminal co v e r of compr ess or.

3) Remove thermo holder and pull thermostat bimetal up.

4) Remove Fast ons of leads.

1-ST2T

f4 ´

OL-Holder

1-ST2T

f4 ´

1-ST2T

f4 ´

Compressor

Thermo holder

Thermostat bimetal

– 64 –

11. EXPLODED VIEWS AND PARTS LIST

11-1. Indoor Unit (1)

402

405

404

403

412

401

406

413

402

Location

No. No.

401 43T60001 Base, T erminal

402 43T60002 Base, T erminal

403 43T69004 Sensor , Heat Exchanger

404 43T69005 Sensor, Thermostat

405 43T60061 Fuse Set, Thermal 77°C

Par t

Description

2P, AC 300V, 20A

3P, AC 300V, 20A

10kΩ, 25°C

– 65 –

Location

No. No.

406 43T69051 P.C. Board Assembly,

406 43T69052 P.C. Board Assembly,

406 43T69031 P.C. Board Assembly,

407 43T61001 Base, E-Parts

Part

Description

MCC-772 (13YKH-E, 13YKH-ES)

MCC-772 (10YKH-E, 10YKH-ES)

WRS-LED , MCC-766

ABS, Black, UL94-5V

11-2. Outdoor Unit

RAS-10YAH-E

17, 26

12, 15

8, 9

10, 11

20 21

7 : CAPILLARY TUBE 27 : DRYER

Location

No. No.

1 43T19001 Guard, Fan 2 43T20001 Fan, Propeller 3 43005037 Cabinet, Front 4 43T43001 Condenser (10YAH-E) 5 43062194 Cover, E-Parts 6 43T00320 Cabinet, Back 7 43T47014 Tube, Capillary 8 43T46017 Valve, Packed 9,52 9 43T47021 Bonnet 10 43T46016 Valve, Packed 6,35 11 43T47020 Bonnet 12 43T46003 4-Way-Valve, VH7100D 13 43T21001 Motor, Fan, UE6-21SJ5P 14 43T47001 Nut, Flange

Par t

Description

– 67 –

Location

No. No.

15 43T49030 Solenoid coil 16 43T19005 Handle 17 43T49001 Rubber, Cushion 18 43T79001 Nipple, Drain 19 43T19002 Stopper, Guard 20 43T63001 Holder , OL-Relay 21 43054403 Relay, Over Load 22 43T41400 Compressor , PH120T1-4C 23 43055483 Capacitor, 25µF 400V 24 43T55001 Capacitor, 1,5µF 500V 25 43060049 Base,Terminal , 5P 26 43T97001 Nut, Flat-washer 27 43T45003 Dryer

Part

Description

RAS-10YAH-ES

13, 16, 25, 26

9, 11

10, 12

7 : CAPILLARY TUBE 8 : CAPILLARY TUBE

Location

No. No.

1 43T19001 Guard, Fan 2 43T20001 Fan, Propeller 3 43005037 Cabinet, Front 4 43T43011 Condenser 5 43062194 Cover, E-Parts 6 43T00320 Cabinet, Back 7 43T47024 Tube, Capillary, 0,8DIA 8 43T47007 Tube, Capillary, 1,2DIA 9 43T46011 Valve, Packed 9,52 10 43T46010 Valve, Packed 6,35 11 43T47021 Bonnet 12 43T47020 Bonnet 13 43T46012 4-Way-Valve, VHV-0104

Par t

Description

– 68 –

Location

No. No.

14 43T21001 Motor, Fan, UE6-21SJ5P 15 43T47001 Nut, Flange 16 43T46013 Coil, 4-Way, VHV-01AI501A 17 43T19005 Handle 18 43T49001 Rubber, Cushion 19 43T79001 Nipple, Drain 20 43T19002 Stopper, Guard 21 43T41406 Compressor, PA118X1T-4FZ 22 43055483 Capacitor, 25µF 400V 23 43T55001 Capacitor, 1,5µF 500V 24 43060049 Base,T erminal , 5P 25 43T46005 Valve, Checked 26 43T45004 Dryer

Part

Description

RAS-13YAH-E

Location

No. No.

1 43005144 Cabinet, Front 2 43005143 Cabinet-Side 3 43042446 Base 4 43T19007 Guard, Fan 5 43T19005 Handle 6 43T19002 Stopper, Guard 7 43T62007 Cover, E-Parts 8 43020302 Fan, Propeller 9 43021984 Motor, Fan, AF-230-28P 10 43T47001 Nut, Flange 11 43T46005 Valve, Check 12 43T63004 Holder, Wire, Lead 13 43T96001 Bushing 14 43043609 Condenser 15 43T46016 Valve, Packed 6,35 16 43T47020 Bonnet 17 43T46019 Valve, Packed 12,7 18 43T47018 Bonnet 19 43T47029 ASM, Packed Valve Cap

Par t

Description

12,7, 6,35

21, 36

17,18

31, 32

15,16

Location

No. No.

20 43T47007 Tube, Capillary, 1,2DIA 21 43T47014 Tube, Capillary, 1,7DIA 22 43041764 Compressor, PH1702T2-4L2 23 43T97001 Nut, Flat-Washer 24 43T49008 Cushion, Rubber 25 43045085 Dryer 26 43054398 Relay, Over Load 27 43T79004 Nipple, Drain 28 43043610 Condenser, Sub 29 43055496 Capacitor, 35µF 400V 30 43T55009 Capacitor, 1,5µF 500V 31 43T50002 Thermostat, Bimetal 32 43T63005 Holder , Thermostat, Bimetal 33 43146482 4Way-Valve 34 43T49030 Solenoid, Coil 35 43060049 Base,Terminal, 5P 36 43T47017 Tube, Capillary, 0,6DIA

Part Description

– 69 –

RAS-13YAH-ES

Location

No. No.

Par t

Description

Location

No. No.

16 43T47021 Bonnet 17 43T46011 Valve, Packed 9,52 18 43T47020 Bonnet 19 43T47007 Tube, Capillary, 1,2DIA 20 43T47008 Tube, Capillary, 1,5DIA 21 43041700 Compressor, P A160x2T-4FZ 22 43T97001 Nut, Flat-Washer 23 43T49008 Cushion, Rubber 24 43T45004 Dryer 25 43T79004 Nipple, Drain 26 43055496 Capacitor, 35µF 400V 27 43T55009 Capacitor, 1,5µF 500V 28 43060049 Base,Terminal, 5P 29 43T46012 4Way-Valve, VHV-0104 30 43T46013 Coil, 4Way, VHV-01AI501A

Part Description

– 70 –

RAS-07YAH-E

12, 15

8, 9

10, 11

20 21

7 : CAPILLARY TUBE

Location

No. No.

1 43T19001 Guard, Fan 2 43T20001 Fan, Propeller 3 43005037 Cabinet, Front 4 43T43001 Condenser 5 43T62007 Cover, E-Parts 6 43T00032 Cabinet, Back 7 43T47307 Tube, Capillary 8 43T46303 Valve, Packed 9.52 9 43T47021 Bonnet , 3/8 IN 10 43T46306 Valve, Packed 6.35 11 43T47020 Bonnet , 1/4 IN 12 43T46003 4-Way-Valve, VH7100D 13 43021928 Motor, Fan, HF 14 43T47001 Nut, Flange

Part

Description

Location

No. No.

15 43T49030 Solenoid coil 16 43T19005 Handle 17 43T49001 Rubber, Cushion 18 43T79001 Nipple, Drain 19 43T19002 Stopper, Guard 20 43T63001 OL-Relay 21 43T54302 Relay, Over Load 22 43T41 304 Compressor, PH80T1-4C 23 43055483 Capacitor, 25MF 400V 24 43T55009 Capacitor, PLASTIC-FILM 25 43060049 Terminal Block , 5P

Part

Description

– 71 –

RAS-07YAH-ES

12,15

8, 9

10,11

7 : CAPILLARY TUBE

Location

No. No.

1 43T19001 Guard, Fan 2 43T20001 Fan, Propeller 3 43005037 Cabinet, Front 4 43T43011 Condenser 5 43T62007 Cover, E-Parts 6 43T00032 Cabinet, Back 7 43T47306 Tube, Capillary 8 43T46302 Vale,Packed 9.52 9 43T47021 BONNET,3/8IN 10 43T46305 Valve, Packed 6,35 11 43T47020 Bonnet,1/4IN 12 43T46012 Valve,4Way,VHV-0104 13 43021928 Fan-Motor

Part

Description

Location

No. No.

14 43T47001 Nut,Flange 15 43T46013 Coil,4Way,VHV-01AI501A1 16 43T19005 Handle 17 43T49001 Rubber,Cushion 18 43T79001 Drain -Nipple 19 43T19002 Guard - Stopper 20 43T41309 Compressor,PA79X1T-4FZ 21 43055470 Capacitor,15MFD,400V 22 43T55009 Capacitor,Plastic-Film 23 43060049 Terminal Block,5P

Part

Description

– 72 –

TOSHIBA CARRIER (THAILAND) CO., LTD.

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

TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

Toshiba RAS-13YKH-ES, RAS-07YKHE, RAS-07YAH-ES, RAS-07YAH-E, RAS-10YKH-E SERVICE MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1. SPECIFICATIONS

2-1. Indoor Unit

2. CONSTRUCTION VIEWS

2-2. Outdoor Unit

4-2. Outdoor Unit

5. REFRIGERANT CYCLE DIAGRAM

6. CONTROL BLOCK DIAGRAM

7. OPERATION DESCRIPTIONS

7-1. FAN ONLY Operation

7-2. COOL Operation

7-2-1. Louver Control

7-3. DRY Operation

7-4. HEAT Operation

7-6. ECONO. Mode

7-7. Current Limit Control

7-6-1. Cooling

7-6-2. Heating

7-11. Defrost Operation

7-11-2. Defrost Operation Time Control

7-12. Auto Restart Function

7-12-1. How to Set the Auto Restart

7-12-2. How to Cancel the Auto Restart

8. INSTALLATION PROCEDURE

8-1. Safety Cautions

8-3. Installation

8-3-1. Optional Parts

8-3-2. Installation Parts

8-4. Indoor Unit

8-4-2. Electrical Work

8-4-3. Wiring Connection

8-4-4. Piping and Drain Hose Installation

8-4-5. Indoor Unit Installation

8-4-6. Drainage

8-5. Outdoor Unit

8-5-2. Refrigerant Piping Connection

8-5-1. Required Tools for Installation Work

8-5-3. Vacuum Pumping

8-5-4. Wiring Connection

8-6. Others

8-6-1. Gas Leak Test

8-6-2. Test Operation

8-6-3. Auto Restart Setting

9. TROUBLESHOOTING CHART

9-1. What to be Prechecked First

9-1-1. Power Supply Voltage

9-1-2. Incorrect Cable Connection between Indoor and Outdoor Units

9-2. Primary Judgement of Trouble Sources

9-2-1. Role of Indoor Unit Controller

9-2-2. Display of Abnormalities and Judgement of the Abnormal Spots

9-3. Troubleshooting Flowcharts

9-3-1. Power can not be Turned on (No Operation at All)

9-3-3. Outdoor Unit does not Operate

9-3-4. Only Compressor does not Operate

9-3-5. Only Outdoor Fan does not Operate

9-3-6. Only 4-Way Valve does not Operate (During Heating Operation)

9-3-7. Only the Indoor Fan does not Operate

9-4. How to Check the Remote Control (Including the Indoor P.C. Board)

9-4-1. How to Check the P.C. Board

9-4-2. P.C. Board Layout

10. PART REPLACEMENT

10-1. Indoor Unit

10-2. Microcomputer

10-3. Outdoor Unit

11. EXPLODED VIEWS AND PARTS LIST

11-1. Indoor Unit (1)

11-2. Outdoor Unit