Toshiba RAS-10YK-HX, RAS-07YAX-T, RAS-07YKX, RAS-07YK-E, RAS-7YA-X SERVICE MANUAL

...

SERVICE MANUAL

AIR-CONDITIONER

SPLIT WALL TYPE

RAS-07YKX / RAS-07YAX RAS-10YKX / RAS-10YAX

FILE NO. DAS-SM-00-001

SUPPLEMENT

RAS-11YKX / RAS-11YAX RAS-07YK-E / RAS-07YA-E RAS-10YK-E / RAS-10YA-E

RAS-07YK-ES/RAS-07YA-ES

RAS-10YK-ES / RAS-10YA-ES

RAS-10YK-HX / RAS-10YA-HX

RAS-07YKX-T / RAS-07YAX-T RAS-10YKX-T / RAS-10YAX-T

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

2. CONSTRUCTION VIEWS ........................................................................ 8

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

4. SPECIFICATIONS OF ELECTRICAL PARTS ...................................... 11

5. REFRIGERANT CYCLE DIAGRAM ...................................................... 13

6. CONTROL BLOCK DIAGRAM .............................................................. 14

7. OPERATION DESCRIPTIONS................................................................. 15

8. INSTALLATION PROCEDURE ............................................................... 20

9. TROUBLESHOOTING CHART............................................................... 33

10. PART REPLACEMENT........................................................................... 46

11. EXPLODED VIEWS AND PARTS LIST ............................................... 50

– 2 –

1. SPECIFICATIONS

RAS-07YKX/07YAX, RAS-07YK-E/07YA-E, RAS-07YKX-T/07YAX-T

MODEL

ITEM

Capacity kW *1

Phase Single V220–240 220Power source

Hz 50 Power consumption kW 0,60–0,65 0,60 Power factor % 96–94 96

Running current

Starting current A 12 Moisture removal lit/h 0,8

Noise (SPL at 1 meter)

Refrigerant

Refrigerant control Capillary tube

Interconnection pipe

Condensate drain pipe Outer diameter mm 16

INDOOR UNIT RAS-07YK-E RAS-07YKX RAS-07YKX-T

Net weight kg 8 Evaporator type Finned tube Indoor fan type Cross flow fan

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

OUTDOOR UNIT RAS-07YA-E RAS-07YAX RAS-07YAX-T

Net weight kg 26

Condenser type

Indoor/Outdoor A 0,15/2,70–0,15/2,72 0,15/2,70

Indoor (H/M/L) dB (A) 39 / 33 / 29 Outdoor (220–240V) dB (A) 44–45 44 Name of refrigerant R-22 Rated volume kg 0,59

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 Maximum height difference Indoor unit Outdoor unit

Height mm 265 Width mm 790Dimensions Depth mm 189

High fan m³/h 550 Medium fan m³/h 490Air flow rate Low fan m³/h 430

Height mm 530 Width mm 770Dimensions Depth mm 200

↑ ↓

V220V–240V 220V

RAS-07YK-E/YA-E RAS-07YKX/YAX RAS-07YKX-T/YAX-T

Cooling

220V–240V 220V

2,10–2,20 2,10

Finned tube

Outdoor fan type Propeller Air flow rate (220–240V) m³/h 1500–1700 1500 Fan motor output W 18 (UE6-21SJ5P) 18 (UE6-21A5P), 20 (HF-240-20A)

Compressor

Safety device Fuse, Overload relay Auto louver Ye s Usable outdoor temperature range °C21–43

Model PH80T1-4C Output W 605

Specifications are subject to change without notice.

– 3 –

RAS-10YKX/10YAX, RAS-11YKX/11YAX RAS-10YK-E/10YA-E, RAS-10YK-HX/10YA-HX

MODEL

ITEM

Capacity kW *1

Phase Single

V220–240Power source

Hz 50 Power consumption kW 0,80–0,85 Power factor % 96–94

Running current

Starting current A 16 Moisture removal lit/h 1,2 Noise

(SPL at 1 meter)

Refrigerant

Refrigerant control Capillary tube

Interconnection pipe

Condensate drain pipe Outer diameter mm 16

INDOOR UNIT RAS-10YKX

Net weight kg 8 Evaporator type Finned tube Indoor fan type Cross flow fan

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

OUTDOOR UNIT RAS-10YAX

Net weight kg 29 Condenser type Finned tube Outdoor fan type Propeller Air flow rate (220–240V) m³/h 1500–1700 Fan motor output W 18 (UE6-21SJ5P) 18 (UE6-21A5P), or 20 (HF-240-20A)

Compressor

Safety device Fuse, Overload relay Air flow rate Ye s Usable outdoor temperature range °C21–43

Indoor/Outdoor A 0,15/3,65–0,15/3,60

Indoor (H/M/L) dB (A) 44 / 36 / 29 Outdoor (220–240V) dB (A) 44–45 Name of refrigerant R-22 Rated volume kg 0,70

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 Maximum height difference Indoor unit Outdoor unit

Height mm 265 Width mm 790Dimensions Depth mm 189

High fan m³/h 650 Medium fan m³/h 510Air flow rate Low fan m³/h 430

Height mm 530 Width mm 770Dimensions Depth mm 200

Model PH102T1-4C 2PS146D5AB02 Output W 750

↑ ↓

V220V–240V

RAS-10YKX/10YAX

RAS-10YK-E/10YA-E

RAS-10YK-HX/10YA-HX

Cooling

220V–240V

2,70–2,70

RAS-10YK-E

RAS-10YK-HX

RAS-10YA-E

RAS-10YA-HX

RAS-11YKX/11YAX

RAS-11YKX

RAS-11YAX

Specifications are subject to change without notice.

– 4 –

RAS-10YK-ES / RAS-10YA-ES RAS-10YKX-T / RAS-10YAX-T

MODEL

ITEM

Capacity kW *1

Phase Single

Power source

Power consumption kW 0,80–0,85 0,80 Power fac t or % 96–94 96

Running current

Starting current A 16 11 Moisture removal lit/h 1,2

Noise (SPL at 1 meter)

Refrigerant

Refrigerant control Capillary tube

Interconnection pipe

Condensate drain pipe Outer diameter mm 16

INDOOR UNIT RAS-10YK-ES RAS-10YKX-T

Net weight kg 8 Evaporator type Finned tube Indoor fan type Cross flow fan

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

OUTDOOR UNIT RAS-10YA-ES RAS-10YAX-T

Dimensions

Net weight kg 29 31 Condenser type Finned tube Outdoor fan type Propeller Air flow rate m³/h (220–240V) 1500 (220V)1700 Fan mot or output W 18 (UE6-21SJ5P) 27 (UE6-31C5P) or 30 (HF-240-30A)

Compressor

Safety device Fuse, Overload relay Auto louver Ye s Usable outdoor temperature range °C21–43

Indoor/Outdoor A 0,15/3,65

Indoor (H/M/L) dB (A) 44 / 36 / 29 Outdoor dB (A) (220–240V) 44 (220V) 46 Name of refrigerant R-410A R-22 Rated volume kg 0,69 0,75

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 Maximum height difference Indoor unit Outdoor unit

Height mm 265 Width mm 790Dimensions Depth mm 189

High fan m³/h 650 Medium fan m³/h 510Air flow rate Low fan m³/h 430

Height mm 530 Width mm 770 Depth mm 200

Model PA98X1T-4FZ RM5510GNE92 Output W 750

↑ ↓

V220–240 220 Hz 50

V220V–240V 220V

RAS-10YK-ES/10YA-ES RAS-10YKX-T/10YAX-T

Cooling

220V–240V 220V

2,65–2,70 2,70

Specifications are subject to change without notice.

– 5 –

Note : *1

• Capacity is based on the following temperature conditions.

TEMPERATURE

Indoor unit inlet air temperature

Outdoor unit inlet air temperature

CONDITION COOLING

(DB) 27 °C

(WB) 19 °C

(DB) 35 °C

(WB) 24 °C

Notes : *2 CHARGELESS

• 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.

– 7 –

2-1.Indoor Unit

2.CONSTRUCTION VIEWS

Air inlet

265

Air outlet

Air filter

790

232 326 232

Hanger

Heat exchanger

1800

07YK-E, 07YK-ES, 10YK-E 10YK-ES: Without power cord

07YKX, 10YKX, 11YKX 07YKX-T, 10YKX-T : With power cord

10YK-HX : With power cord & plug

Front panel

Back body

189

Knock out system

Drain hose (0,54m)

Hanger

Connecting pipe (0,39m)

(Flare Ø9,52)

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

- 8 -

2-2. Outdoor Unit

Detail Drawing

600

36 50

216

230

Ø11x14 Hole

Handle

R10

Ø6 Hole

230

216

Fan guard

600 85

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

Access for charging

250

230

100 or more

Inlet port

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)

- 9 -

3. WIRING DIAGRAM

LOUVER MOTOR

Datail A

RAS-10YK-HX

L N

Power cord with plug

RAS-07YK-E RAS-10YK-E

RAS-07YK-ES RAS-10YK-ES

RAS-10YAX-T

RAS-10YA-ES

POWER

TERMINAL

BLOCK

RAS-07YKX RAS-10YKX

RAS-11YKX RAS-07YKX-T RAS-10YKX-T

FAN MOTOR

only

COMPRESSOR

only

RAS-07YKX/10YKX/11YKX RAS-07YKX-T/10YKX-T/10YK-HX

THERMAL FUSE 77°C x 1

ORN

P04

BRW

BLU

SG01

DSA

VARISTOR

BLK

GRN&YEL

L N

RY02

BLK

WHI

INDOOR

TERMINAL

BLOCK

OUTDOOR TERMINAL

BLOCK

OVER LOAD

RELAY

BLK

COMPRESSOR

PNK WHI

RAS-07YK-E/10YK-E RAS-07YK-ES/10YK-ES

ORN

CN04

R22

F01

6,3A

250V

R21

RY01

WHI

BLK

RED

FAN

MOTOR

CAPACITOR CAPACITOR

RED

THERMAL FUSE 77°C x 2

ORN

VARISTOR

C15

1 1

YEL

GRN&YEL

GRN & YEL

CHASSIS

RED

WHI

INFRARED RAYS RECEIVE

AND INDICATION PARTS

544332211

BLU

PNK

BLU

ORN

PNK

YEL

RED

CN07

C01

BLU

6 6

5 5

4 4

R01

BRW

54321

DB01

C02

POWER

L01

CR03 IC 03

DC 12V DC 5V

SUPPLY CIRCUIT

C58

CN11 CN01

BLK

BRW

5 3 1 5 3 1

BLK

23456

PNK

WHI

1 1

BLK

2 2

BLK

CN03CN10

THERMO SENSOR

(TA)

EXCHANGER

SENSOR

AC FAN MOTOR

INDOOR

OUTDOOR

COLOR IDENTIFICATION

BROWN

BRW

RED

WHITE

WHI

YEL

YELLOW

BLU

BLUE

BLK

BLACK

GRY

GRAY

PINK

PNK

ORN

GRN&YEL

ORANGE

GREEN & YELLOW

CN25

BLK

WHI

CN13

MCC-798

BLK

HEAT

(TC)

– 10 –

4. SPECIFICATIONS OF ELECTRICAL PARTS

4-1. Indoor Unit

No. PARTS NAME TYPE SPECIFICATIONS

Output (Rated) 20W, 6poles, 1phase, 220–240V, 50Hz

Fan motor

2 Thermo. sensor (TA-sensor) (Microprocessor) 10kW at 25°C

3 Switching transformer SWT-47

4 Microcomputer TMP87CK40AN

5 Power relay, Common relay DI1U Coil : DC 12V 75mA, Rated AC 250V 20A

6 Heat exchanger sensor (TC-sensor) (Microprocessor) 10kW at 25°C

7 Line filter SS11V-06180 18mH, AC 0,6A

8 Diode D3SBA60 4A, 600V

9 Capacitor ECEC2GA470BL 47mF, 400V

10 Fuse TSCR T6, 3A, 250V

11 Varistor 15G561K 560V

12 Resistor 5,6W, 2W

13 Louver motor MP35EA12 Output (Rated) 2W, 10poles, 1phase, DC 12V

(for indoor) MMF-240-20-4A

Winding resistance (W) (at 20°C)

Red-Black White-Black1

220,8 324,3

4-2. Outdoor Unit

RAS-07YAX, RAS-07YA-E, RAS-07YAX-T

No. PARTS NAME TYPE SPECIFICATIONS

Output (Rated) 605W, 2poles, 1phase, 220–240V, 50Hz

Winding resistance (W) (at 20°C)

Output (Rated) 18W, 6poles, 1phase, 220–240V, 50/60Hz

RAS-07YA-E

Fan motor

(for outdoor)

RAS-07YAX RAS-07YAX-T

Runnin

(for fan motor)

4 Running capacitor (for compressor) SK-40CMP15U1 AC 400V, 15mF

5 Overload relay JMRA99208-9201 U/T 4,2A (25°C), OPEN 130 ± 5°C, CLOSE 69 ± 11°C

capacitor

RAS-07YA-E

RAS-07YAX RAS-07YAX-T

UE6-21SJ5P

HF-240-20A

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

DS501155BPQA AC 500V, 1,5mF

Winding resistance (W) (at 20°C)

Output (Rated) 18W, 6poles, 1phase, 220–240V, 50/60Hz

Winding resistance (W) (at 20°C)

Output (Rated) 20W, 6poles, 1phase, 220–240V, 50/60Hz

Winding resistance (W) (at 20°C)

C-R C-S1 Compressor PH80T1-4C

4,80 8,37

Red-Black White-Black

370 370

Red-Black White-BlackUE6-21A5P

370 370

Red-Black White-Black

387 466

– 11 –

Indoor Unit Control Panel

C. P. U

Heat Exchanger Sensor

Thermo. Sensor

Infrared Rays Signal Receiver

Infrared

Rays

Remote Control

Operation (START/STOP)

– 14 –

Operation Mode Selection

AUTO, COOL, DRY, FAN ONLY

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

Initializing Circuit

Clock Frequency

Oscillator Circuit

Power Supply

Circuit

Noise Filter

Functions

• Louver Control

• 3-minute Delay at Restart for Compressor

• Motor Revolution Control

• Processing

(Temperature Processing)

• Timer

Compressor, Outdoor Fan

ON/OFF Signal

Louver DriverRelay Driver

Louver

Operation

Display

Timer

Display

ECONO.

Sign Display

6. CONTROL BLOCK DIAGRAM

FAN-ONLY

Sign Display

Indoor

Fan Motor

Louver

Motor

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

ECONO.

AC 220-240V AC 220V

(RAS-07YKX-T, 10YKX-T only)

50Hz

Relay

RY02

Relay

RY01

Compressor

Outdoor Fan Motor

7. OPERATION DESCRIPTIONS

(Room temp. – Set temp.)

Set temp.

OFF

OPERATION

display

ON ON

Compressor

Outdoor fan

(RY01)

Common relay

(RY02)

7-1. FAN ONLY Operation

(The Remote Control MODE Button is Set to the FAN ONLY Operation)

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 [START/STOP] button.

(MODE of the remote control : FAN ONLY)

(1) During this mode, the relay RY01 is always

turned off so that only the indoor fan is operated. RY02 is always turnd on. FAN-ONLY display is lit.

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

2) When the FAN is set to LOW, MED. or HIGH, the indoor fan motor operates with a constant in volume as listed in Table 7-1-1.

HIGH

MED

LOW(+)

LOW

(Room temp. – Set temp.)

Set temp.

7-2. COOL Operation

(MODE of the remote control : COOL)

(1) Compressor, outdoor fan and operation display

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

Fig. 7-2-1

(2) Relays RY01 and RY02 are turned on to

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

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

2) When the FAN is set to LOW, MED, or HIGH, the indoor fan motor operates with a constant in volume as listed in Table 7-1-1.

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

FAN

Table 7-1-1 Manual setting of FAN SPEED

Indication of

FAN SPEED

LOW

MED

HIGH

For model :

RAS-07YKX, RAS-07YK-E, RAS-07YK-ES, RAS-07YKX-T

HIGH Air volume

(m3/hr)

430 (*430)

510 (*490)

650 (*550)

(Room temp. – Set temp.)

Set temp.

AUTO

HIGH

MED

LOW(+)

LOW

RY01

OFF

LOW

(continuous)

Manual

According to the set

position

Fig. 7-2-2

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

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

– 15 –

by pushing the START/STOP button.

7-2-1. Louver Control

(Room temp. – Set temp.)

Set temp.

OFF

OPERATION

display

Compressor

Outdoor fan

(RY01)

Common relay

(RY02)

ON:6min.

OFF:4min.

ON:5min.

OFF:5min.

7-3. DRY Operation

(1) Vertical air flow louvers

Positions of vertical air flow louvers are automatically controlled according to the operation status (COOL, AUTO, DRY, FAN ONLY). Besides, positions of vertical air flow louvers can be arbitrarily set by pushing the [SET] button. The louver position which has been set by the [SET] button is stored in microcomputer, and the louver is automatically set at the stored position in the next operation.

(2) Swing

If the [AUTO] button is pushed during running operation, vertical air flow louvers start swinging. When the [AUTO] button is pushed again, swinging stops.

(MODE of the remote control : DRY)

(1) Compressor, outdoor fan and operation display

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

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 low 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.

Set temp.+1

Set temp.

Compressor

Outdoor fan

Indoor fan

– 16 –

ON ON ON ON

OFF OFF OFF

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

*Super Low

Fig. 7-3-2

7-4. AUTO Operation

(MODE of the remote control : AUTO)

(1) One of the 2 modes, Cooling or Dry is selected

according to room temperature at which operation is to start, as shown in Fig. 7-4-1. The Fan mode will continue until room temperature reaches a level at which another mode is selected.

7-4-1. Temporary Auto

When the TEMPORARY button is pushed (1 sec), the set temperature is fixed at 24°C and controlled in accordance with the chart shown in Fig. 7-4-1.

Powerful Cooling mode

(The same cooling mode as the room temperature control is set at set temp. –1˚C) The Louver moved downward. (DIRECT AUTO COOL)

Cooling mode

(The same cooling mode as the room temperature control is set at set temp. –1˚C)

Dry mode

(The same dry operation as the room temperature control is set at set temp. –1˚C)

(Room temp. – Set temp.)

7-5. ECONO. Mode

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

7-5-1. Cooling

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

remote control is changed automatically as shown in Fig. 7-5-1.

(2) Fan speed → LOW

(˚C)

Set temp. is changed

Fig. 7-4-1

7-6. Low-Temperature Limit Control

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. 7-6-1.

Heat exchanger temperature

(Cooling Operation)

(˚C)

Compressor

Less than 5˚C continues

Outdoor fan

for 5 minutes

OFF

Set temp.

ECONO. button is pushed

Set temp. is changed

Fig. 7-6-1

1H 2H TIME0H

Fig. 7-5-1

– 17 –

7-7. Auto Restart Function

This unit is equipped with an Automatic restarting function which allows the unit to restart and resume the set operating conditions in the event of a supply power shutdown without the use of the hand control.

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

INFORMATION

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)

7-7-1. 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, push the TEMPORARY button continuously for three seconds.

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

The above 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.

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

– 18 –

+ 41 hidden pages

Toshiba RAS-10YK-HX, RAS-07YAX-T, RAS-07YKX, RAS-07YK-E, RAS-7YA-X SERVICE MANUAL

CONTENTS

2.CONSTRUCTION VIEWS

2-2. Outdoor Unit

4. SPECIFICATIONS OF ELECTRICAL PARTS

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. AUTO Operation

7-4-1. Temporary Auto

7-5. ECONO. Mode

7-7. Auto Restart Function

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