Toshiba RAS-M18SAH-E User manual

PRINTED IN JAPAN, Apr.,1998 ToMo

SERVICE MANUAL

FILE NO. A00-9805

AIR-CONDITIONER

MULTI SPLIT WALL TYPE

SUPPLEMENT

RAS-10SKH-E-1

RAS-M18SAH-E

RAS-10SKH-E-1

RAS-13SKH-E

RAS-3M31SAH-E-1

RAS-10SKH-E-1

RAS-4M36SAH-E

x 2 x 3 x 4

– 2 –

CONTENTS

1. DESCRIPTION .................................................................................................................3

2. SPECIFICATIONS............................................................................................................ 4

3. CONSTRUCTIONVIEWS .............................................................................................. 11

3-1. Indoor Unit ................................................................................................................................ 11

3-2. Outdoor Unit ............................................................................................................................. 12

4. REFRIGERANT CYCLE DIAGRAMS ............................................................................ 14

5. WIRING DIAGRAM ........................................................................................................ 17

6. SPECIFICATIONS OF ELECTRICAL PARTS ............................................................... 19

6-1. Indoor Unit ................................................................................................................................ 19

6-2. Outdoor Unit ............................................................................................................................. 20

7. MICROCOMPUTER BLOCK DIAGRAMS ..................................................................... 21

8. OPERATION DESCRIPTIONS....................................................................................... 23

8-1. FAN ONLY Operation ............................................................................................................... 23

8-2. COOL Operation....................................................................................................................... 23

8-3. DRY Operation.......................................................................................................................... 24

8-4. HEAT Operation........................................................................................................................ 25

8-5. AUTO Operation ....................................................................................................................... 26

8-6. ECONO. Mode ........................................................................................................................... 27

8-7. Current Limit Control............................................................................................................... 27

8-8. High-Temperature Limit Control............................................................................................. 28

8-9. Low-Temperature Limit Control (Cooling Operation) .......................................................... 28

8-10. Cool Airflow Prevention Control (Heating Operation) ......................................................... 29

8-11. Defrost Operation..................................................................................................................... 29

8-12. Auto Restart Function ............................................................................................................. 31

8-13. Operation Control of Following Outdoor Unit....................................................................... 33

9. TROUBLESHOOTING CHART...................................................................................... 34

9-1. What to be Prechecked First................................................................................................... 34

9-2. Primary Judgement ofTrouble Sources ................................................................................ 36

9-3. Troubleshooting Flowcharts ................................................................................................... 40

9-4. How to Check the Remote Control (Including the Indoor P.C. Board) ............................... 47

10. PART REPLACEMENT.................................................................................................. 52

10-1. Indoor Unit ................................................................................................................................ 52

10-2. Microcomputer ......................................................................................................................... 54

10-3. Outdoor Unit ............................................................................................................................. 55

11. CAUTIONS ON REPLACEMENT OF P.C. BOARD ASSEMBLY................................... 64

12. EXPLODEDVIEWS AND PARTS LIST ......................................................................... 65

12-1. Indoor Unit (1)........................................................................................................................... 65

Indoor Unit (2)........................................................................................................................... 66

Indoor Unit (3)........................................................................................................................... 67

12-2. Outdoor Unit ............................................................................................................................. 68

– 3 –

1. DESCRIPTION

RAS-M18SAH-E

RAS-M18SAH-E can be used alone with two indoor units RAS-10SKH-E-1.

RAS-3M31SAH-E-1

in a combination of two outdoor units

RAS-13SAH-E (upper unit, one compressor)

RAS-M18SAH-E (lower unit, two compressors)

The upper unit can be used with one indoor unit RAS-13SKH-E and the lower

unit with two indoor units RAS-10SKH-E-1.

RAS-4M36SAH-E

The lower unit RAS-M18SAH-E can be used as a double decker under the

combination name RAS-4M36SAH-E with four indoor units RAS-10SKH-E-1.

– 4 –

2. SPECIFICATIONS

RAS-10SKH-E-1 x 2 / RAS-M18SAH-E

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Starting current A

Moisture removal lit/h

Noise Indoor (H/M/L) dB

Outdoor (220/230/240V) dB

Refrigerant Name of refrigerant

Rated volume kg

Refrigerant control Gas side size mm

Connection type

Liquid side size mm

Interconnection pipe Connection type

Maximum length (One way) m *2

Maximum height difference

Indoor unit m

Outdoor unit

Condensate drain pipe Outer diameter mm

INDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Evaporator type

Indoor fan type High fan m3/h

Air volume Medium fan m3/h

Low fan m3/h

Fan motor output W

Air filter

OUTDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Condenser type

Outdoor fan type

Airflow volume (220/230/240V) m3/h

Fan motor output W

Compressor Model

Output W

Safety device

Auto louver

Usable outdoor temperature range °C

RAS-10SKH-E-1 x 2 / RAS-M18SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

5,0 5,0 5,0 5,6 5,6 5,6

Single

220/230/240

2,04/2,10/2,18 1,78/1,86/1,96

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,22/9,54 0,22/9,7 0,22/9,96 0,22/8,38 0,22/8,66 0,22/9,16

1,2

41/36/31

52/53/54

R-22

1,4 (0,7+0,7)

Capillary tube

9,52

Flare connection

6,35

Flare connection

RAS-10SKH-E-1

265

790

174

Finned tube

Cross flow fan

600

500

400

Polypropylene net filter (Washable)

RAS-M18SAH-E

538

830

300

Finned tube

Propeller

1830/1920/2010

PH120T1-4C x 2

750W x 2

Fuse, Overload relay

Yes

21 ~ 43 – 5 ~ 21

Specifications are subject to change without notice.

– 5 –

RAS-10SKH-E-1

RAS-M18SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

2,50 2,50 2,50 2,80 2,80 2,80

Single

220/230/240

1,02/1,05/1,09 0,89/0,93/0,98

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,11/4,77 0,11/4,85 0,11/4,98 0,11/4,19 0,11/4,33 0,11/4,58

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

– 6 –

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Starting current A

Moisture removal lit/h

Noise Indoor (H/M/L) dB

Outdoor (220/230/240V) dB

Refrigerant Name of refrigerant

Rated volume kg

Refrigerant control Gas side size mm

Connection type

Liquid side size mm

Interconnection pipe Connection type

Maximum length (One way) m *2

Maximum height difference

Indoor unit m

Outdoor unit

Condensate drain pipe Outer diameter mm

INDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Evaporator type

Indoor fan type High fan m3/h

Air volume Medium fan m3/h

Low fan m3/h

Fan motor output W

Air filter

OUTDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Condenser type

Outdoor fan type

Airflow volume (220/230/240V) m3/h

Fan motor output W

Compressor Model

Output W

Safety device

Auto louver

Usable outdoor temperature range °C

RAS-10SKH-E-1 x 2, RAS-13SKH-E / RAS-3M31SAH-E-1

Specifications are subject to change without notice.

RAS-10SKH-E-1

2, RAS-13SKH-E

RAS-3M31SAH-E-1

Cooling Heating

220V 230V 240V 220V 230V 240V

8,45 8,50 8,50 9,60 9,65 9,70

Single

220/230/240

3,30/3,38/3,48 2,97/3,09/3,23

96/93/90 94/93/89

220V 230V 240V 220V 230V 240V

0,37/15,24 0,37/15,36 0,37/15,71 0,37/13,92 0,37/14,14 0,37/14,70

19+19+25

1,2+1,2+2,0

RAS-10SKH-E-1 : 41/36/31 RAS-13SKH-E : 44/39/36

52/53/54

R-22

2,28 (0,7+0,7+0,88)

Capillary tube

RAS-10SKH-E-1 : 9,52 RAS-13SKH-E : 12,7

Flare connection

6,35

Flare connection

RAS-10SKH-E-1 : 5 RAS-13SKH-E : 6

RAS-10SKH-E-1 RAS-13SKH-E

265

790

174

Finned tube

Cross flow fan

600 650

500 560

400 510

Polypropylene net filter (Washable)

RAS-3M31SAH-E-1

1125

830

300

106

Finned tube

Propeller

1830/1920/2010

PH120T1-4C x 2 + PH170T2-4L2

750W x 2 + 1100W x 1

Fuse, Overload relay

Yes

21 ~ 43 – 5 ~ 21

– 7 –

RAS-10SKH-E-1, RAS-13SKH-E

RAS-3M31SAH-E-1

Cooling Heating

220V 230V 240V 220V 230V 240V

5,95 6,00 6,00 6,80 6,85 6,90

Single

220/230/240

2,28/2,33/2,39 2,08/2,16/2,25

97/94/91 95/93/90

220V 230V 240V 220V 230V 240V

0,26/10,47 0,26/10,51 0,26/10,73 0,26/9,73 0,26/9,81 0,26/10,12

RAS-10SKH-E-1

RAS-3M31SAH-E-1

Cooling Heating

220V 230V 240V 220V 230V 240V

5,0 5,0 5,0 5,6 5,6 5,6

Single

220/230/240

2,04/2,10/2,18 1,78/1,86/1,96

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,22/9,54 0,22/9,70 0,22/9,96 0,22/8,38 0,22/8,66 0,22/9,16

RAS-13SKH-E

RAS-3M31SAH-E-1

Cooling Heating

220V 230V 240V 220V 230V 240V

3,45 3,50 3,50 4,00 4,05 4,10

Single

220/230/240

1,26/1,28/1,30 1,19/1,23/1,27

98/96/92 95/95/93

220V 230V 240V 220V 230V 240V

0,15/5,70 0,15/5,66 0,15/5,75 0,15/5,54 0,15/5,48 0,15/5,54

RAS-10SKH-E-1

RAS-3M31SAH-E-1

Cooling Heating

220V 230V 240V 220V 230V 240V

2,50 2,50 2,50 2,80 2,80 2,80

Single

220/230/240

1,02/1,05/1,09 0,89/0,93/0,98

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,11/4,77 0,11/4,85 0,11/4,98 0,11/4,19 0,11/4,33 0,11/4,58

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

– 8 –

Specifications are subject to change without notice.

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Starting current A

Moisture removal lit/h

Noise Indoor (H/M/L) dB

Outdoor (220/230/240V) dB

Refrigerant Name of refrigerant

Rated volume kg

Refrigerant control Gas side size mm

Connection type

Liquid side size mm

Interconnection pipe Connection type

Maximum length (One way) m *2

Maximum height difference

Indoor unit m

Outdoor unit

Condensate drain pipe Outer diameter mm

INDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Evaporator type

Indoor fan type High fan m3/h

Air volume Medium fan m3/h

Low fan m3/h

Fan motor output W

Air filter

OUTDOOR UNIT Height mm

Dimensions Width mm

Depth mm

Net weight kg

Condenser type

Outdoor fan type

Airflow volume (220/230/240V) m3/h

Fan motor output W

Compressor Model

Output W

Safety device

Auto louver

Usable outdoor temperature range °C

RAS-10SKH-E-1

RAS-4M36SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

10,0 10,0 10,0 11,2 11,2 11,2

Single

220/230/240

4,08/4,20/4,36 3,56/3,72/3,92

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,44/19,08 0,44/19,4 0,44/19,92 0,44/16,76 0,44/17,32 0,44/18,32

19+19+19+19

1,2+1,2+1,2+1,2

41/36/31

54/55/56 55/56/57

R-22

2,8 (0,7+0,7+0,7+0,7)

Capillary tube

9,52

Flare connection

6,35

Flare connection

RAS-10SKH-E-1

265

790

174

Finned tube

Cross flow fan

600

500

400

Polypropylene net filter (Washable)

RAS-4M36SAH-E

1125

830

300

119

Finned tube

Propeller

1830/1920/2010

PH120T1-4C

750W x 4

Fuse, Overload relay

Yes

21 ~ 43 – 5 ~ 21

RAS-10SKH-E-1 x 4 / RAS-4M36SAH-E

– 9 –

RAS-10SKH-E-1

RAS-4M36SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

7,50 7,50 7,50 8,40 8,40 8,40

Single

220/230/240

3,06/3,15/3,27 2,67/2,79/2,94

97/94/91 95/93/90

220V 230V 240V 220V 230V 240V

0,33/14,31 0,33/14,55 0,33/14,94 0,33/12,57 0,33/12,99 0,33/13,74

RAS-10SKH-E-1

RAS-M36SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

5,0 5,0 5,0 5,6 5,6 5,6

Single

220/230/240

2,04/2,10/2,18 1,78/1,86/1,96

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,22/9,54 0,22/9,70 0,22/9,96 0,22/8,38 0,22/8,66 0,22/9,16

RAS-10SKH-E-1

RAS-4M36SAH-E

Cooling Heating

220V 230V 240V 220V 230V 240V

2,50 2,50 2,50 2,80 2,80 2,80

Single

220/230/240

1,02/1,05/1,09 0,89/0,93/0,98

95/92/89 94/91/87

220V 230V 240V 220V 230V 240V

0,11/4,77 0,11/4,85 0,11/4,98 0,11/4,19 0,11/4,33 0,11/4,58

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoor

Model

Item

Capacity *1 kW

Phase

Power source V

Power consumption kW

Power factor %

Running current A

Indoor/Outdoorr

– 10 –

Cooling

27°C

19°C

35°C

24°C

Heating

20°C

—

7°C

6°C

JIS C9612-1994Condition

(DB)

(WB)

(DB)

(WB)

Temperature

Indoor unit inlet air temperature

Outdoor unit inlet air temperature

Notes : *2

RAS-13SKH-E /RAS-3M31SAH-E-1

• 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.

RAS-10SKH-E-1 / RAS-M18SAH-E,

RAS-10SKH-E-1 / RAS-3M31SAH-E-1,

RAS-10SKH-E-1 / RAS-4M36SAH-E

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

• There is need to add the refrigerant 20g/m as long as the each length of the connection piping is up to 11m to

15m.

Note : *1

• Capacity is based on the following temperature conditions.

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