toshiba conditioner.pdf

8/10/2019 Toshiba conditioner.PDF

1/73

SERVICE MANUAL

FILE NO. DAS-SM-00-003

AIR-CONDITIONER

SUPP M NT

SPLIT WALL TYPE

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

RAS-10YKH-E

/

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

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




2/73 2

CONTENTS

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


3/73 3

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

ITEM Cooling Heating Cooling Heating

220V240V 220V240V 220V240V 220V240VCapacity kW *1 2,652,70 3,003,10 3,453,50 4,004,10

Phase Single

V 220240Power source

Hz 50

Power consumption kW 0,981,02 0,890,91 1,261,30 1,191,27

Power factor % 9590 9588 9892 9593

V 220V240V 220V240V 220V240V 220V240VRunning current

Indoor/Outdoor A 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

Starting current A 19 14 25 25

Moisture removal lit/h 1,2 2,0

Indoor (H/M/L) dB (A) 41 / 36 / 29 41 / 36 / 29 44 / 39 / 34 44 / 39 / 34Noise(SPL at 1 meter) Outdoor (220240V) dB (A) 4749 4749 49 / 51 49 / 51

Name of refrigerant R-22Refrigerant

Rated volume kg 0,74 0,88

Refrigerant control Capillary tubeGas side size mm 9,52 12,7

Connection type Flare connection

Liquid side size mm 6,35


Maximum length (of one way) m *2 10 15Interconnection pipe

Maximum height difference

Indoor unit

Outdoor unitm

5 6

Condensate drain pipe Outer diameter mm 16

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

Height mm 265

Width mm 790Dimensions

Depth mm 189Net weight kg 8

Evaporator type Finned tube

Indoor fan type Cross flow fan

High fan m/h 600 650

Medium fan m/h 500 560Air flow rate

Low fan m/h 400 510

Fan motor output W 20

Air filter Polypropylene net filter (Washable)

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

Height mm 530 538

Width mm 770 780Dimensions

Depth mm 200 300

Net weight kg 31 42

Condenser type Finned tube

Outdoor fan type Propeller

Air flow rate (220240V) m/h 15001700 16901730

Fan motor output W 18 28

Model PH120T1-4C PH170T2-4L2Compressor

Output W 750 1100

Safety device Fuse, Overload relay

Auto louver Yes

Usable outdoor temperature range C 2143 -521 2143 -521

1. SPECIFICATIONS

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

Specifications are subject to change without notice.


4/73 4

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

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

ITEM Cooling Heating Cooling Heating

220V240VCapacity kW *1 2,652,70 3,003,10 3,453,50 4,004,10

Phase Single

V 220240Power source

Hz 50

Power consumption kW 0,981,02 0,890,91 1,261,30 1,191,27

Power factor % 9590 9588 9894 9793

V 220V240VRunning current

Indoor/Outdoor A 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

Starting current A 19 14 25 25

Moisture removal lit/h 1,2 2,0

Indoor (H/M/L) dB (A) 41 / 36 / 29 41 / 36 / 29 44 / 39 / 34 44 / 39 / 34Noise(SPL at 1 meter) Outdoor (220240V) dB (A) 4749 4749 49 / 51 49 / 51

Name of refrigerant R-410ARefrigerant

Rated volume kg 0,69 0,80

Refrigerant control Capillary tube

Gas side size mm 9,52


Liquid side size mm 6,35


Maximum length (of one way) m *2 10 15Interconnection pipe

Maximum height difference

Indoor unit

Outdoor unitm

5 6

Condensate drain pipe Outer diameter mm 16

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

Height mm 265

Width mm 790Dimensions

Depth mm 189

Net weight kg 8Evaporator type Finned tube

Indoor fan type Cross flow fan

High fan m/h 600 650

Medium fan m/h 500 560Air flow rate

Low fan m/h 400 510

Fan motor output W 20

Air filter Polypropylene net filter (Washable)

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

Height mm 530 538

Width mm 770 780Dimensions

Depth mm 200 300

Net weight kg 31 42

Condenser type Finned tubeOutdoor fan type Propeller

Air flow rate (220240V) m/h 15001700 16901730

Fan motor output W 18 28

Model PA118X1T-4FZ PA160X2T-4FMCompressor

Output W 750 1100

Safety device Fuse, Overload relay

Auto louver Yes

Usable outdoor temperature range C 2143 -521 2143 -521

Specifications are subject to change without notice.


5/73


6/73 6

Note : *1 Capacity is based on the following temperature conditions.

CONDITION COOLING HEATINGTEMPERATURE

Indoor unit inlet air temperature

(DB) 27 C 20 C

(WB) 19 C 12 C

Outdoor unit inlet air temperature

(DB) 35 C 7 C

(WB) 24 C 6 C

Notes : *2 CHARGELESSRAS-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.


7/73 7

2. CONSTRUCTION VIEWS

2-1. Indoor Unit

Air filter

790

Heat exchangerAir inlet

265

Air outlet47 1

0

50

189

4710

50

Knock out system

790

232 326 232

Hanger

321Drain hose (0,54m)

Connecting pipe (0,39m)

(Flare 6,35)(Flare 9,52)(Flare 12,7 for 13YKH-E only)

Hanger

65965,5

326

450

65,5

For stud bolt

(8~10)

For stud bolt

(6)

Hanger

Minimumdistanceto wall

Minimumdistanceto ceiling

265

178,

5

Knock out system

Front panel

Back body

20

20

37

40,

5

60,5

790

12626931976

Center line Installationplate outline

HangerHanger40,

5

3,

5

Hanger

Minimumdistanceto wall1

7

20

46

120 or more 120 or more

66 or more

2,

5

Connecting pipe (0,49m)


8/73 8

2-2. Outdoor Unit

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

600 85

36 11125 Drain hole

50

302

16

230

8-6 Holes(For fixing the outdoor unit)

4-11x14 Long holes

(For anchor bolt 8-10)

Gas side (flare 9,52)

Liquid side (flare 6,35)

111

A600

R105036

252

16

230

11x14 Hole 6 Hole

Handle

11

525

530

5

268

Fan guard

420 TOSHIBA

770 59

89

200

11

12

Electricparts cover

Z

54 62

Serviceport

250

Z View600

45ormor

e

Inlet port

600 or more

(Minimum distanceof the wall)

4-11x14 Long holes

(For anchor bolt 8-10)

400ormore Outlet

port

Centerport

230

100 or more

Inlet port

Visible outlineof the product

A Detail Drawing

Mounting dimension of anchor bolt

268

77059

89


9/73 9

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

538

325

325

52,

5

23

301

325

300

Handle

25 Drain outlet

Electric parts cover

Serviceport

6154

325 (pitch) (8,5)(8,5)

342

100 or more

100 or more 600 or more

600 or more

Installation dimension

600

Air inlet

Air outlet

8-6 hole(for fixing outdoor unit)

Liquid side (Flare 6,35)

Gas side(Flare 12,7 for 13YAH-E,

Flare

9,52 for 13YAH-ES)

120

11x14 hole

6 hole

R10

600

Detail Drawing

5036

A

A

6-11x14 hole (for 8-10 anchor bolt)

600

100

130

780

90

59

27

Fan guard

420 Z

ViewZ

4x11x14 Long holes (for 8-10 anchor bolt)


10/73


11/73 11

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

1 2 3 4 5 61 2 3 4 5 6

5 3 1 1 21 2

1 21 2

LN

FANMOTOR

WHI

WHI

PNK

BLK BLUBLU

RED

RED

RED

SOLENOIDCOIL

BLK

CAPACITOR

CAPACITOR

GRN & YELCHASSIS

INDOOR

OUTDOOR

RED

BLU

BLK

WHI

GRN&YEL

GRN&YEL

P04BLK

BRW

BLU

ORN

ORN

CN04 CN13

CN25

CN03CN10

C58 MCC-798

CN11 CN01

BLK

BLK

BLK

BLK

POWERSUPPLYCIRCUIT

C02

DC 12V

DB01R01C01

L01C15

R22

F01

6,3A

250V

R21

RY01RY02

WHI

CR01

CR02

RY04RY03

BLK

T02C.T

3

4

3

4

220V-240V50Hz

POWERTERMINALBLOCK

INDOORTERMINAL

BLOCK

THERMOSENSOR

(TA)

AC FAN MOTOR

HEATEXCHANGER

SENSOR(TC)

::::::::::

BROWNREDWHITEYELLOWBLUEBLACKGRAYPINKORANGEGREEN &YELLOW

BRWREDWHIYELBLUBLK

GRYPNKORN

GRN&YEL

COLOR IDENTIFICATION

VARISTOR

1987654321

98765

98765

4

4

3

3

2

2

1

1

221

SG01

DSA

1 2 35 3 11 2 3

YEL

BLK B

LK

BRW

PNK

WHI1

3

321 4

321 4

COMPRESSOR

BLU

PNK

BLK

WHI

BLU

BLU

BLU

BLU

BLU

OUTDOORTERMINAL

BLOCK

THERMALFUSE77C x 2

LOUVER MOTOR

12346 5PNK

YEL

ORN

RED

BRW

BLU

CN07 12346 5

DC 5VCR03 IC 03

INFRARED RAYS RECEIVEAND INDICATION PARTS

BLK

BLK

OVER LOADRELAY

THERMOSTATFOR

COMPRESSORSame as

figure.

COMPRESSOR

Detail B

Detail A

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

Same asfigure. BLK

A

B

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


12/73


13/73 13

4-2. Outdoor Unit



No. PARTS NAME MODELS TYPE SPECIFICATIONS

Output (Rated) 750W, 2poles, 1phase, 220240V, 50Hz

C-R C-SRAS-10YAH-E PH120T1-4C Winding resistance ()

(at 20C) 4,53 8,73


C-R C-SRAS-13YAH-E PH170T2-4L2 Winding resistance ()

(at 20C) 2,22 3,04


C-R C-SRAS-10YAH-ES PA118X1T-4FZ Winding resistance ()

(at 20C) 3,17 5,18


C-R C-S

1 Compressor

RAS-13YAH-ES PA160X2T-4FM Winding resistance ()(at 20C) 2,26 3,53


Red-Black White-BlackRAS-10YAH-E

RAS-10YAH-ESUE6-21SJ5P Winding resistance ()

(at 20C) 370 370


Red-Black White-Black

2Fan motor

(for outdoor)

RAS-13YAH-E

RAS-13YAH-ESAF-230-28P Winding resistance ()

(at 20C) 198 160

RAS-10YAH-E

RAS-10YAH-ESSK-50FMP1,5U1 AC 500V, 1,5F

3

Running

capacitor(for fan motor) RAS-13YAH-E

RAS-13YAH-ESSK-50FMP1,5U2 AC 500V, 1,5F

RAS-10YAH-E

RAS-10YAH-ESSK-40CMP25U1 AC 400V, 25F

4

Running

capacitor

(for compressor) RAS-13YAH-E

RAS-13YAH-ESSK-40CMP35U1 AC 400V, 35F

RAS-10YAH-E JMRA99269-9200 U/T : 6,8A (90C), OPEN 135 5C, CLOSE : 69 11C5 Overload relay

RAS-13YAH-E JMRA99257-9200 U/T : 8,0A (80C), OPEN 145 5C, CLOSE : 75 11C

6Thermostat

(for compressor)RAS-10YAH-E CS-7 OFF : 130C, ON : 70C

RAS-10YAH-ERAS-13YAH-E LB60012 AC 200 / 240V

7Solenoid coil

(for 4-way valve) RAS-10YAH-ES

RAS-13YAH-ESVHV-01A1501A1 AC 200 / 240V


14/73


15/73 15

5. REFRIGERANT CYCLE DIAGRAM

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

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.

Evaporator

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve

Heating CoolingCompressor

Accumulator

Condenser

Propeller fan

Outdoor unit

Dryer

Capillary tube1,5x500

PH120T1-4C

CoolingHeating

Mark( )means check points of Gas Leak

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

Cooling

Heating

Packed valve(9,52)

Packed valve(6,35)

0,39m(Connecting pipe)9,52


T

P

RefrigerantR-22 0,74kg

Ambient temp.conditions DB/WB (C)50Hz

Standardpressure P(kg/cmG)

Surface temp. of heatexchanger interchanging

pipe T (C)

Fan speed(indoor)

Indoor Outdoor

Standard 15,0 40,0 High 21/ - 7/6High temperature *1 1923 52,059,0 Low 27/ - 21/15HeatingLow 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


16/73 16




Heat exchanger

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve

Gas container connection (Reinstall etc.)


Accumulator

Condenser

Propeller fan

Outdoor unit


PH170T2-4L2

CoolingHeating


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

Cooling

Heating

Packed valve(12,7)

Packed valve(6,35)



T

P







pipe T (C)

Fan speed(indoor)

Indoor Outdoor


Standard 5,0 10,0 High 27/19 35/24




17/73 17







pipe T (C)

Fan speed(indoor)

Indoor Outdoor


Standard 6,0 12,0 High 27/19 35/24



Evaporator

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve


Accumulator

Outdoor unit

Dryer


PH80T1-4C

CoolingHeating


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

Cooling

Heating

Packed valve(9,52)

Packed valve(6,35)



T

P


Condenser

Propeller fan


18/73 18

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



Evaporator

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve


Accumulator

Condenser

Propeller fan

Outdoor unit

Dryer


PA118X1T-4FZ

CoolingHeating


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

Cooling

Heating

Packed valve(9,52)

Packed valve(6,35)



T

P

RefrigerantR-410A 0,69kg


MufflerMuffler


Standardpressure P

(MPaG)


pipe T (C)

Fan speed(indoor)

Indoor Outdoor

Standard 2,5 43,0 High 20/ - 7/6High temperature *1 3,13,6 51,058,0 Low 27/ - 21/15HeatingLow temperature 2,2 36,0 High 20/ - -10/-10

Standard 0,9 10,0 High 27/19 35/24




19/73 19




Heat exchanger

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve


Condenser

Propeller fan

Outdoor unit

Dryer


PA160X2T-4FM

CoolingHeating


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

Cooling

Gas container connection (Reinstall etc.)

Packed valve(9,52)

Packed valve(6,35)

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



T

P



Muffler


Standardpressure P

(MPaG)


pipe T (C)

Fan speed(indoor)

Indoor Outdoor

Standard 2,7 43,0 High 20/ - 7/6High temperature *1 3,23,6 52,057,0 Low 27/ - 21/15HeatingLow temperature 2,0 30,0 High 20/ - -10/-10

Standard 0,9 11,0 High 27/19 35/24




20/73 20







pipe T (C)

Fan speed(indoor)

Indoor Outdoor

Standard 2,5 43,0 High 20/ - 7/6High temperature *1 3,1-3,6 51,058,0 Low 27/ - 21/15Heating

Low temperature 2,2 36,0 High 20/ - -10/-10

Standard 0,9 10,0 High 27/19 35/24



Evaporator

Indoor unit

Cross flow fan

Cooling

Heating

4-way valve


Accumulator

Outdoor unit

Dryer


PA79X1T-4FZ5

CoolingHeating


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

Cooling

Heating

Packed valve(9,52)

Packed valve(6,35)



T

P


Condenser

Propeller fan


21/73

21

Infrared Rays Signal Receiver

Current Sensor

Thermo. Sensor

Functions

Louver Control

3-minutes Delay at Restart for Compressor

Motor Revolution Control

Processing (Temperature Processing)

Timer

ECONO.

Louver Direction Setting

Louver AUTO Swing

OFF TIMER Setting

ON TIMER Setting

Fan Speed Selection

Thermo. Setting

Operation Mode Selection

AUTO, COOL, DRY, HEAT, FAN ONLY

Operation (START/STOP)

Relay Driver, Louver Driver

Clock FrequencyOscillator Circuit

Heat Exchanger Sensor

Infrared

RaysInitializing Circuit

C. P. UMain Unit Control Panel

AC 220/230/240V ~

50Hz

Remote Control

Lo

ON/O

4-Way Valve

ON/OFF Signal

Outdoor Fan

ON/OFF Signal

Compressor

ON/OFF Signal

RelayRelayRelay

4-Way VOutdoor Fan MotorCompressor

(Compressor Current)

Relay

RY02

RY01 RY03

Noise Filter

Power Supply

Circuit


22/73 22

7. OPERATION DESCRIPTIONS

7-1. FAN ONLY Operation

(MODE of the remote control : FAN ONLY)

(1) During this mode, the relay RY01 is alwaysturned off so that only the indoor fan is operated.

RY02 is always turnd on.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 constantin volume as listed in Table 7-1-1.

7-2. COOL Operation

(MODE of the remote control : COOL)

(1) Compressor, 4-way valve, outdoor fan andoperation display are controlled as shown in Fig.

7-2-1.

Fig. 7-2-2

(3) Once the setting is made, the operation mode ismemorized in the microcomputer so that the

same operation can be effected thereafter simplyby pushing the START/STOP button.

Fig. 7-2-1

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

gize the outdoor unit, and a cool operation iscarried out.

1) When the FAN is set to AUTO, the indoor fanmotor 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 constantin volume as listed in Table 7-1-1.

(Roomt

emp.

Settemp.)

MED

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

LOW

LOW(continuous)

+4

+3

+2

+1

0

RY01

OFF

Settemp.

Manual

FAN

Accordingto the setposition

HIGH

AUTO

HIGH

MED

LOW(+)

LOW

LOW

28

27

26

25

24

(Roomtemp.

Settemp.)

Settemp.

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

Table 7-1-1 Manual setting of FAN SPEED

Indication of

FAN SPEED

LOW

MED

HIGH

HIGH Air volume (m3/hr)

RAS-10YKH-E RAS13-YKH-ERAS-10YKH-ES RAS13-YKH-ES

400(430)* 510

500(490)* 560

600(550)* 650

(Roomt

emp.

Settemp.)

+1

0Settemp.

ON

OFF

4-way

valve

(RY

04)

Outdo

orfan

(RY

03)

OPER

ATION

display

ON

OFF

OFFON ON

Comp

ressor

(RY

01)

Commonrelay

(RY

02)

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

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

by pushing the START/STOP button.


23/73 23

7-2-1. Louver Control

(1) By pushing the SET button of the remote controlduring the operation, the louver can be set to the

desired position.

And the louver position is stored in the micro-computer, the louvers will be set to the positionautomatically at the next operation.

(2) When the AUTO button is pushed, the louververtically 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.

(Roomtemp.S

ettemp.)

Settemp.

OFF ON

+3

+2

+1

0

OFF

4-wayvalve

(RY04)

Outdoorfan

(RY03)

OPERATION

display

Compressor

(RY01)

Commonrelay

(RY02)

ON:6min.

OFF:4min.

ON:5min.

OFF:5min.

OFF

ON:6min.

OFF:4min.

ON:5min.

OFF:5min.

ON

Fig. 7-3-1

The microprocessor turns the compressor onand off at regular intervals (4 to 6 minutes onand/or off). During the compressor off, the

indoor fan will operate in the super lowposition.

The indoor fan will operate in the AUTOposition.

(2) The pattern of operation depending on therelation between room temperature and set

temperature is shown below:

Room temp.

Set temp.+1

Set temp.

Compressor

Outdoor fan

Indoor fan L. *S.L. S.L.L. L. S.L. L.

ON ON ON ON

OFF OFF OFF

*Super Low

Fig. 7-3-2

7-4. HEAT Operation

(MODE of the remote control : HEAT)

(1) Relays compressor 4-way valve, outdoor fan andoperation display are controlled as shown in Fig.7-4-1.

Fig. 7-4-2

(3) Once the setting is made, the operation mode ismemorized in the microcomputer so that the

same operation can be effected thereafter simplyby pushing the START/STOP button.

Fig. 7-4-1

(2) Relays RY01 and RY02 are turned on to ener-gize the outdoor unit, and a heat operation is

carried out. The indoor fan motor operates asshown 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 toLOW, MED, or HIGH.

0

1

ON

OFF

ON

OFFONON ON

(Roomtemp.

Settemp.)

4-wayvalve

(RY04)

Outdoorfan

(RY03)

OPER

ATION

dis

play

Comp

ressor

(RY01)

Comm

onrelay

(RY02)

(Roomt

emp

.Settemp.)

0

-1

-2

-3

-4

Settemp.

MED

RY01 OFF

MED(-)

LOW(+)

LOW

FAN

ManualAUTO

Accordingto the setposition


24/73


25/73


26/73 26

7-8. High-Temperature Limit Control

(Heating Operation)

The microprocessor detects the indoor heat ex-changer temperature so as to prevent exceeding thecondensate pressure.

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

60

53

52

(C)Compressor,Outdoor fan

OFF

ON

*1 Only outdoor fan is turned off.

*1

Heat exchangertemperature

Fig. 7-9-1

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

Compressor

Less than 2C continuesfor 5 minutes

OFF

ON

Outdoor fan

6


2

(C)

Fig. 7-8-1

7-9. Low-Temperature Limit Control(Cooling Operation)

The microprocessor detects the indoor heat ex-changer temperature so as to prevent freezing up theindoor heat exchanger.

Control is performed as shown in Fig. 7-9-1 and 7-9-2.

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

Compressor

Less than 5C continuesfor 5 minutes

OFF

ON

Outdoor fan

7


5

(C)

Fig. 7-9-2

According to theset position

Indoor fan speed

35

32

30

20


(C)

U.L. (Ultra Low)

Room temp.

Set temp.S.L (Super Low)

Room temp.

Set temp.OFF

>

toshiba conditioner.pdf

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