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Toshiba RAS-18UA-AR3, Service Manual

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Toshiba RAS-18UA-AR3 Service Manual Download Page 41

8-2. Installation Diagram of Indoor and Outdoor Units

For installation of the indoor unit, use the paper pattern, which is inside the package box cover.

Before install the wireless

remote control

With the remote control cover

open, load the batteries supplied

correctly, observing their polarity.

22222  Wireless remote control

33333  Batteries

Cover

Pipe

shield

(Under Ceiling Installation)

70 mm or more

200 

mm 

or more

200 mm or more

Insulate the refrigerant

pipes separately with

insulation, not together.

6 mm thick heat resisting

polyethylene foam

(Console Installation)

6

Zeolite filter

7 

Bioenzyme filter

Air filter

5

Filter frame

2

Wireless remote

control

4

Remote control

holder

9

Pan head

wood screw

200 mm

or more

8

Mounting

screw

Hook

70

 m

m

 o

r m

ore

200 mm

or more

1

Installation

plate

100 mm

 or m

ore

Vinyl tape Apply

after carrying out

a drainage test

Saddle

Extension

drain hose

(Option:

RB

-

821SW)

Extension

drain hose

(Option:

RB

-

821SW)

Electric

parts

cover

Electric

parts cover

18 Class

Heat pump

600

 mm

 or 

mo

re

24 Class

18 Class

Cooling only

600 mm or more

600 mm

or more

100 m

m or 

mor

e

600 mm or more

600

 mm

 or 

mo

re

Loop the connective cable

(about 100 mm in diameter and 300 

−

 

 

350 mm long).

Loop the connective cable

(about 100 mm in diameter and 300 

−

 

 

350 mm long).

100 mm

or more

600 mm

or more

100 mm

or more

600 mm

or more

FILE NO. SVM-04032

– 40 –

Summary of Contents for RAS-18UA-AR3

Page 1: ...8UA E3 RAS 18UFPX3 RAS 18UAX3 RAS 18UFP AR3 RAS 18UA AR3 RAS 18UFPX3 T2 RAS 18UAX3 T2 RAS 24UFHP E3 RAS 24UAH E3 RAS 24UFP E3 RAS 24UA E3 RAS 24UFPX3 RAS 24UAX3 RAS 24UFP AR3 RAS 24UA AR3 RAS 24UFPX3 T RAS 24UAX3 T FILE NO SVM 04032 18 Class Heat pump model 24 Class 18 Class Cooling only model June 2004 ...

Page 2: ...X3 T 4 SPECIFICATION OF ELECTRICAL PARTS 4 1 Indoor Unit 4 2 Outdoor Unit RAS 18UAH E3 4 3 Outdoor Unit RAS 18UAX3 RAS 18UA E3 4 4 Outdoor Unit RAS 18UA AR3 4 5 Outdoor Unit RAS 18UAX3 T2 4 6 Outdoor Unit RAS 24UAH E3 4 7 Outdoor Unit RAS 24UA E3 RAS 24UAX3 RAS 24UAX3 T 4 8 Outdoor Unit RAS 24UA AR3 2 3 Outdoor Unit RAS 18UA E3 RAS 18UAX3 RAS 18UA AR3 RAS 18UFPX3 T2 RAS 18UAX3 T2 5 REFRIGERATION C...

Page 3: ...tdoor Units 8 3 Installation 8 4 Indoor Unit 8 5 Outdoor unit 8 6 How to Set Remote Control Selector Switch 8 7 How to Use Drain Pump Kit of Option 8 8 Others 9 TROUBLESHOOTING CHART 9 1 Troubleshooting Procedure 9 2 Basic Check Items 9 3 Primary Judgement 9 4 Self Diagnosis by Remote Control Check Code 9 5 How to Diagnose Faulty Parts 9 6 Troubleshooting for Indoor Unit 9 7 Troubleshooting for Wi...

Page 4: ...rts Assy 11 2 Indoor Unit 11 4 Outdoor Unit RAS 18UA E3 RAS 18UAX3 11 6 Outdoor Unit RAS 18UAX3 T2 11 7 Outdoor Unit RAS 24UAH E3 11 8 11 9 Outdoor Unit RAS 24UA E3 RAS 24UAX3 RAS 24UAX3 T Outdoor Unit RAS 24UA AR3 11 5 Indoor Unit RAS 18UA AR3 11 3 Outdoor Unit RAS 18 UFHP E3 ...

Page 5: ...nection Liquid side size mm 6 35 Interconnection Connection type Flare connection pipe Maximum length m 15 1 One way 20 2 Maximum height m 8 difference INDOOR UNIT RAS 18UFHP E3 RAS 18UFP E3 RAS 18UFP AR3 RAS 18UFPX3 T2 RAS 18UFPX3 Width mm 1093 Dimensions Height mm 633 Depth mm 208 Net weight kg 23 Evaporator type Finned tube Indoor fan type Multi blade fan High fan m3 h 800 830 800 900 Air volum...

Page 6: ...de size mm 6 35 Interconnection Connection type Flare connection pipe Maximum length m 15 1 One way 25 2 Maximum height m 10 difference INDOOR UNIT RAS 24UFHP E3 RAS 24UFPX3 T RAS 24UFPX3 Width mm 1093 Dimensions Height mm 633 Depth mm 208 Net weight kg 23 Evaporator type Finned tube Indoor fan type Multi blade fan High fan m3 h 900 930 900 Air volume Medium fan m3 h 750 760 750 Low fan m3 h 650 6...

Page 7: ... way 25 2 Maximum height m 10 difference INDOOR UNIT RAS 24UFP AR3 Width mm 1093 Dimensions Height mm 633 Depth mm 208 Net weight kg 23 Evaporator type Finned tube Indoor fan type Multi blade fan High fan m3 h 900 Air volume Medium fan m3 h 750 Low fan m3 h 650 Fan motor output W 50 Air filter Washable filter OUTDOOR UNIT RAS 24UA AR3 Width mm 880 Dimensions Height mm 690 Depth mm 310 Net weight k...

Page 8: ...3 Cooling Heating Cooling Indoor unit inlet air temperature DB 27 C 20 C 29 C WB 19 C 12 C 19 C Outdoor unit inlet air temperature DB 35 C 7 C 46 C WB 24 C 6 C 24 C RAS 18UFHP E3 RAS 18UAH E3 RAS 24UFHP E3 RAS 24UAH E3 RAS 18UFP E3 RAS 18UA E3 RAS 24UFP E3 RAS 24UA E3 RAS 18UFPX3 RAS 18UAX3 RAS 24UFPX3 RAS 24UAX3 Refrigerant RAS 18UFP AR3 RAS 18UA AR3 RAS 24UFP AR3 RAS 24UA AR3 RAS 18UFPX3 T2 RAS ...

Page 9: ...t system For stud bolt 8 10 For stud bolt 6 Grille air inlet Back Body Installation plate Mount plate M10 Suspention bolt Wireless remote control Knock out system 200 Min 1093 1015 742 450 20 20 330 165 7 4 70 Min 633 460 57 18 160 633 208 1093 UNDER CEILING CONSOLE INSTALLATION ...

Page 10: ...cover Liquid side Flare 6 35 Gas side Flare 12 7 Installation dimension 100 or more Air inlet 600 or more 100 or more Air inlet Air outlet 600 or more 600 50 35 600 344 325 91 54 60 50 90 600 830 90 120 52 23 325 Handle 538 300 Service Port 4x 11x14 for 8 10 anchor bolt 8 6 holes for fixing outdoor unit 6 11x14 holes for 8 10 anchor bolt ...

Page 11: ...ng outdoor unit A 325 120 Liquid side Flare 6 35 Gas side Flare 12 7 52 5 Service Port Electric parts cover 344 27 130 100 Installation dimension 100 or more Air inlet 600 or more 100 or more Air inlet Air outlet 600 or more 600 325 23 301 325 11x14 hole 6 hole R10 600 Detail Drawing 50 35 A 4x 11x14 for 8 10 anchor bolt 4 11x14 hole for 8 10 anchor bolt ...

Page 12: ... 140 88 310 340 340 pitch 12 12 364 A 12x18 hole A Detail Drawing 25 Drain outlet 52 Handle Installation dimension 600 100 or more 100 or more 600 or more 600 or more Air outlet Air inlet Electric Parts cover Liquid side Flare 6 35 Gas side Flare 15 88 Service Port 600 340 23 68 Handle 4 12x18 for 8 10 anchor bolt 4 12x18 holes for 8 10 anchor bolt ...

Page 13: ...BLU BLU BLU BLU BLU BLU BLU BLU BLU WHI LOUVER MOTOR C15 R405 C501 RY401 L01 MAIN PCB RY501 CR502 DC12V DC5V CR501 IC03 R506 CN10 BLK BLK BLK CN03 THERMO SENSOR TA C01 R01 DB01 C02 SWITCH PCB MCC 865B POWER SUPPLY CIRCUIT R22 F01 T6 3A BLK CN30 CN31 CN23 FOR FLOAT SWITCH OPTION GRN YEL FOR DRAIN PUMP OPTION BRW GRY BLK RED RED WHI WHI FAN MOTOR PUR BLU GRY YEL When you use float switch you should ...

Page 14: ...T R22 F01 T6 3A BLK CN30 CN27 CN31 FOR FLOAT SWITCH OPTION GRN YEL FOR DRAIN PUMP OPTION BRW GRY BLK RED RED WHI WHI FAN MOTOR PUR BLU GRY YEL CN402 CN401 CN11 WHI RED FUSE 250VAC R21 CR02 RY04 MCC 865A CR401 2 1 1 1 2 3 2 1 1 3 3 3 1 2 3 6 5 4 6 5 4 3 2 1 3 2 1 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 CN25 INFRARED RAYS RECEIVE AND INDICATION PARTS 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 5 3 5...

Page 15: ... CN402 CN401 CN11 WHI RED FUSE 250VAC R21 CR02 RY04 MCC 865A CR401 2 1 1 1 2 3 2 1 1 3 3 3 1 2 3 6 5 4 6 5 4 3 2 1 3 2 1 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 CN25 INFRAREDRA YSRECEIVE ANDINDICA TIONP ARTS 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 5 3 5 3 1 1 1 1 1 1 1 1 2 2 CN100 WHI GRY GRY CN101 1 1 2 2 3 3 1 2 3 3 3 6 6 3 3 2 2 BLK BLK CN01 HEAT EXCHANGER SENSOR TC 1 1 2 2 COLORIDENTIFICA ...

Page 16: ...TION GRN YEL FOR DRAIN PUMP OPTION BRW GRY BLK RED RED WHI WHI FAN MOTOR PUR BLU GRY YEL CN402 CN401 CN11 WHI RED FUSE 250VAC R21 CR02 RY04 MCC 865A CR401 2 1 1 1 2 3 2 1 1 3 3 3 1 2 3 6 5 4 6 5 4 3 2 1 3 2 1 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 CN25 INFRARED RAYS RECEIVE AND INDICATION PARTS 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 5 3 5 3 1 1 1 1 1 1 2 2 CN100 WHI GRY GRY CN101 1 1 2 2 3 3...

Page 17: ... BLU BLU BLU BLU BLU BLU BLU WHI LOUVER MOTOR C15 R405 C501 RY401 L01 MAIN PCB RY501 CR502 DC12V DC5V CR501 IC03 R506 CN10 BLK BLK BLK CN03 THERMO SENSOR TA C01 R01 DB01 C02 SWITCH PCB MCC 865B POWER SUPPLY CIRCUIT R22 F01 T6 3A BLK CN30 CN31 CN23 FOR FLOAT SWITCH OPTION GRN YEL FOR DRAIN PUMP OPTION BRW GRY BLK RED RED WHI WHI FAN MOTOR PUR BLU GRY YEL When you use float switch you should cut J40...

Page 18: ...OPTION GRN YEL FOR DRAIN PUMP OPTION BRW GRY BLK RED RED WHI WHI FAN MOTOR PUR BLU GRY YEL CN402 CN401 CN11 WHI RED FUSE 250VAC R21 CR02 RY04 MCC 865A CR401 2 1 1 1 2 3 2 1 1 3 3 3 1 2 3 6 5 4 6 5 4 3 2 1 3 2 1 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 CN25 INFRARED RAYS RECEIVE AND INDICATION PARTS 1 2 3 1 2 3 4 5 6 4 5 6 7 8 9 7 8 9 10 10 5 3 5 3 1 1 1 1 1 1 2 2 CN100 WHI GRY GRY CN101 1 1 2 2 3...

Page 19: ...35EA12 Output Rated 2W 6poles 4phase DC 12V 4 2 Outdoor Unit RAS 18UAH E3 No Parts name Type Specifications Output Rated 1500 W 2 poles 1 phase 220 240 V 50 Hz 1 Compressor PH250X3 4LM Winding resistance Ω C R C S at 20 C 2 29 1 22 Output Rated 65 W 6 poles 1 phase 220 240 V 50 Hz 2 Fan motor for outdoor KFG6 71SB5P T3 Winding resistance Ω Red Black White Black at 20 C 64 4 127 4 3 Running capacit...

Page 20: ...45 Output Rated 65 W 6 poles 1 phase 220 240 V 50 Hz 2 Fan motor for outdoor KFG6 71SB5P T4 Winding resistance Ω Red Black White Black at 20 C 68 15 170 50 3 Running capacitor 451205KQ AC 450 V 2µF for fan motor 4 Running capacitor SK42CMP45U1 S AC 420 V 45µF for compressor 5 Magnetic contactor CLK 35J 220 240 V 50 Hz 4 4 Outdoor Unit RAS 18UA AR3 No Parts name Type Specifications Output Rated 150...

Page 21: ...at 25 C 50 kΩ at 25 C 7 Magnetic contactor CLK 35J 220 240 V 50 Hz 8 Transformer TT 05 220 240 V 9 Microcontroller TMP47C840N 10 Varistor R73 R74 R86 15G471K 470 V 11 Fuse F01 MT3 T6 3 A 250 V 4 7 Outdoor Unit RAS 24UA E3 RAS 24UAX3 RAS 24UAX3 T No Parts name Type Specifications Output Rated 2200 W 2 poles 1 phase 220 240V 50 Hz 1 Compressor 2JS386D5BB02 Winding resistance Ω C R C S at 20 C Output...

Page 22: ... C R C S at 20 C 0 886 1 979 Output Rated 65 W 6 poles 1 phase 220 240V 50 Hz 2 Fan motor for outdoor MMF 230 65I Winding resistance Ω Red Black White Black at 20 C 71 2 139 0 3 Running capacitor 451355KQ for fan motor 4 Running capacitor AC 420 V 60µF for compressor 5 Magnetic contactor CLK 35J 220 240V 50 Hz 21 FILE NO SVM 04032 4 8 Outdoor Unit RAS 24UA AR3 ...

Page 23: ...re limit control operation is included 50Hz Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Fan speed indoor Ambient temp conditions DB WB C Indoor Outdoor Evaporator Indoor unit Multi blade fan Cooling Heating Muffler 4 way valve Heating Cooling Compressor Condenser Propeller fan Outdoor unit Capillary tube 1 2x1500S Capillary tube 2 0x1200S PH250X3 4LM Accumulator ...

Page 24: ...Hz Fan speed indoor Ambient temp conditions DB WB C Indoor Outdoor Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Indoor unit Multi blade fan Compressor Condenser Propeller fan Outdoor unit 2JS350D5DA02 O D 6 35 mm Packed valve 12 70 Packed valve T P Refrigerant R 22 1 05 kg Evaporator Capillary tube 2 0x700S 0 49m Connecting pipe 6 35 mm Mark means check points of ...

Page 25: ...emp conditions DB WB C Indoor Outdoor Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Indoor unit Multi blade fan Compressor Condenser Propeller fan Outdoor unit 2JS350D5DA02 O D 6 35 mm Packed valve 12 70 Packed valve T P Refrigerant R 22 1 17 kg Evaporator Capillary tube 2 0x1000S Capillary tube 0 8x900S 0 49m Connecting pipe 6 35 mm Mark means check points of Gas ...

Page 26: ... indoor Ambient temp conditions DB WB C Indoor Outdoor Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Indoor unit Multi blade fan Condenser Propeller fan Outdoor unit O D 6 35 mm Packed valve 15 88 Packed valve T Refrigerant R 22 1 47 kg Evaporator Capillary tube 2 0x800S 0 49m Connecting pipe 6 35 mm 6 35 Mark means check points of Gas Leak P O D 15 88 mm 0 39m Con...

Page 27: ...ure limit control operation is included 50Hz Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Fan speed indoor Ambient temp conditions DB WB C Indoor Outdoor Evaporator Indoor unit Multi blade fan Cooling Heating 4 way valve Heating Cooling Compressor Condenser Propeller fan Outdoor unit Capillary tube 2 4x1400S PH310X3 4MM Accumulator Cooling Heating Mark means check...

Page 28: ...p of heat exchanger interchanging pipe T C Evaporator Indoor unit Multi blade fan Compressor Condenser Propeller fan Outdoor unit Capillary tube 2 0x650S Dryer 2JS386D5BB02 O D 6 35 mm Packed valve 15 88 Packed valve 6 35 0 49m Connecting pipe 6 35 mm T P Refrigerant R 22 1 80kg Mark means check points of Gas Leak O D 15 88 mm 0 39m Connecting pipe 15 88 mm 15 88 mm 0 39m Flexible pipe RAS 24UFPX3...

Page 29: ...emp conditions DB WB C Indoor Outdoor Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T C Evaporator Indoor unit Multi blade fan Compressor Condenser Propeller fan Outdoor unit Capillary tube 2 4x1400S Dryer 2JS386D5BB02 Accumulator O D 6 35 mm Packed valve 15 88 Packed valve 6 35 0 49m Connecting pipe 6 35 mm T P Refrigerant R 22 1 63kg Mark means check points of Gas Le...

Page 30: ...itiallizing Circuit Clock Frequence Oscillator Circuit Power Supply Circuit Noise Filter Relay RY401 Louver ON OFF Signal Serial Signal Communication Hi POWER Display FILTER Sign Display PRE DEF Sign Display TIMER Display Louver Driver Functions Louver Control 3 minute Delay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer Drain Pump ON OFF Serial Signal C...

Page 31: ...erature Sensor Infrared Rays Signal Receiver Initiallizing Circuit Clock Frequency Oscillator Circuit From Outdoor Unit Relay RY401 Relay RY04 Louver ON OFF Signal Compressor Hi POWER Display FILTER Sign Display FAN ONLY Sign Display TIMER Display Louver Driver Functions Louver Control 3 minute Delay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer Drain P...

Page 32: ...ion commands from the indoor unit and operates the outdoor fan motor and the compressor 1 Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them Temperature measurement at air inlet of the indoor unit by the indoor temperature sensor Temperature setting of the indoor heat exchanger by the heat exchanger sensor Louver moto...

Page 33: ...OTE 1 The values marked with 1 are calculated and controlled by the difference in motor speed between M and L Fig 7 2 1 Setting of air flow FAN AUTO 2 ECO and Hi Power operation cannot be set 7 2 2 Cooling operation MODE button on the remote control is set to the cooling operation 1 The compressor 4 way valve outdoor fan and operation display on the remote control are controlled as shown in Fig 7 ...

Page 34: ...rolled as shown in Fig 7 2 4 Fig 7 2 4 2 The microcontroller turns the compressor on and off at the regular intervals 4 to 6 minutes While the compressor is turning off the indoor fan motor operates in the SUPER LOW position The pattern of operation depending on the relation between room temperature and preset temperatures is shown in Fig 7 2 5 Fig 7 2 5 3 FAN button on the remote control is set t...

Page 35: ...nother mode is selected 2 Temporary Auto When the TEMPORARY button on the indoor unit is pushed the preset temperature is fixed at 24 C and the indoor unit is controlled as shown in Fig 7 2 9 4 0 1 Room temp Preset temp C Cooling operation The louver moves to the position same as Hi POWER operation Cooling operation Fan only operation Heating operation RAS 18UFHP E3 RAS 18UFP E3 RAS 18UFPX3 RAS 24...

Page 36: ...ing mode except the preset temperature is higher 2 C 4 The Hi POWER mode can not be set in Dry or Fan only operation 7 4 High Temperature Limit Control The microcontroller detects the indoor heat exchanger temperature to prevent pressure of a refrigerating cycle from increasing excessively The compressor and outdoor fan motor are controlled as shown in Fig 7 4 1 Fig 7 4 1 7 5 Low Temperature Limit...

Page 37: ... not set if the power is off Push the TEMPORARY button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is on standby Not operating When the unit is in operation Operation Motions Push TEMPORARY button for m...

Page 38: ...ton on the indoor unit Note If TEMPORARY button is pushed while the filter check lamp is not indicating the indoor unit will start the Automatic Operation When the unit is on standby Not operating Operation Motions Push TEMPORARY button for more The unit is on standby than three seconds The unit starts to operate The orange lamp is on After approx three seconds The unit beeps three times The lamp ...

Page 39: ...install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit falls Before doing the electrical work attach an approved plug to the power supply cord Also make sure the equipment is properly earthed Appliance shall be installed in accordance with national wiring regulations If you detect any damage do not install the unit Contact your TOSHIB...

Page 40: ...essor technical process following installation conditions do apply 1 The power connection for the air conditioner has to be done at the main power distribution This distribution has to be of an impedance Normally the required impedance is reached at a 32A fusing point Air conditioner fuse has to be 16A max 2 No other equipment should be connected to this power line 3 For detailed installation acce...

Page 41: ...6 Zeolite filter 7 Bioenzyme filter Air filter 5 Filter frame 2 Wireless remote control 4 Remote control holder 9 Pan head wood screw 200 mm or more 8 Mounting screw Hook 70 mm or more 200 mm or more 1 Installation plate 100 mm or more Vinyl tape Apply after carrying out a drainage test Saddle Extension drain hose Option RB 821SW Extension drain hose Option RB 821SW Electric parts cover Electric p...

Page 42: ...hor bolts and nuts If it is necessary to drain the defrost water attach Drain nipple to the bottom plate of the outdoor unit before installing it Part Code A B C Q ty One each 1 One each Parts name Refrigerant piping Liquid side 6 35 mm Gas side 12 70 mm RAS 18UF 15 88 mm RAS 24UF RAS 18UFPX3 T2 Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes Air outlet Air outlet Drain outle...

Page 43: ...V 50 Hz 11 43T47001 Nut Flange 12 43T63004 Clamp Lead Wire 13 43T96001 Bushing 14 43T43348 Condenser Assembly Location Part Description No No 15 43T46311 Valve Packed 6 35 Dia 16 43T47020 Bonnet 6 35 Dia 17 43T46019 Valve Packed 12 7 Dia 18 43T47018 Bonnet 12 7 Dia 20 43T47013 Capillary Tube 2 0 Dia 23 43T49309 Rubber Cushion 24 43T55316 MF Capacitor 45µF 370 V 25 43T55318 MF Capacitor 2µF 450 V 2...

Page 44: ...e filter x 1 Bioenzyme filter x 1 Mounting screw 4 x 25 s x 8 Part No 5 6 7 8 Part name Q ty Pan head wood screw 3 1 x 16 s x 2 Drain nipple x 1 Packaged with the outdoor unit Flexible pipe x 1 Pipe shield x 1 Part No 9 Others Owner s manual Installation manual Option For the Extension drain hose use an optionally available RB 821SW or commercially available one This model is not equipped with an ...

Page 45: ...ch as a curtain that may block the signal from the indoor unit Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove Keep 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 show...

Page 46: ...ove the Panel arms from the Front panel Fig 8 4 4 1 1 2 2 5 3 3 8 4 3 After installation Install the Air inlet grille 1 Insert the three Panel arms on the Air inlet grille and fix each securely by screws Fig 8 4 5 CAUTION The screws that fixed with Panel arms must not be loose 2 Set the Air inlet grille arm to the axis of the Front panel 3 Insert the Grille stopper to the correct position and fix ...

Page 47: ...ion bolts into the metal fittings of the indoor unit 3 Set to nuts spring washers and washers on both sides of the metal fittings and then move the indoor unit backward 4 Secure it with the M10 Nuts 4pcs 5 Attach the Side covers to the unit Fig 8 4 9 Condition for installation The unit must not decline more than 15 mm in either axis Fig 8 4 10 240 mm or more 235 mm or more 15 mm 15 mm 140 330 1015...

Page 48: ...hose installation The piping direction can be 4 ways as illustrated The Drain hose is only one way Fig 8 4 11 How to install the Drain hose 1 Remove the two screws and the Drain band 2 Cut a slit for the drain hose hole Fig 8 4 12 3 Place the Drain hose on the U shape space and secure it with the Drain band and two screws Fig 8 4 13 Rear piping hole 80 Ceiling Wall Ceiling 175 mm or more 140 mm Sc...

Page 49: ... Insert clip anchors for appropriate Mounting screws 8 NOTE Secure four corners and lower parts of the Installation plate 1 with 6 to 8 mounting screws to install it 390 mm or more 375 mm or more Rear piping hole 80 Floor REMOCON INSTALL A C B F 140 633 320 160 742 1093 60 Projection 15 mm or less 8 8 8 8 8 Mounting screw 4 x 25 s s s s s Clip anchor local parts 5 mm dia hole Anchor bolt Install t...

Page 50: ...5 1 Remove the Terminal cover and the Cord clamp 2 Insert the connecting cable into the pipe hole on the wall 3 Insert the connecting cable fully into the Terminal block and secure it tightly with the screw Tightening torque 1 2 N m 0 12kgf m 4 Fix the connecting cable by the Cord clamp with two screws 5 Fix the Terminal cover Stripping length of the connecting cable Fig 8 4 26 NOTE Use strand wir...

Page 51: ...0 3 When connecting the Extension drain hose insulate the connecting part of Extension drain hose with the Pipe shield Fig 8 4 31 CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping Provided by customer Extension drain hose Inside the room Drain hose Pipe Shield 8 4 7 Pipe shield for flare nut connection Joints in liquid and gas pipes of th...

Page 52: ...ll the outdoor unit without anything blocking the air discharging 2 When the outdoor unit is installed in a place always exposed to strong wind like a coast or on a high storey of a building secure the normal fan operation using a duct or a wind shield 3 Especially in windy area install the unit to prevent the admission of wind 4 Installation in the following places may result in trouble Do not in...

Page 53: ...ngth is 20 meters 15 minutes for 20 meters Assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure side valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both sides of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valve...

Page 54: ...5 to 80 N m 6 5 to 8 0 kgf m 50 to 62 N m 5 0 to 6 2 kgf m 16 to 18 N m 1 6 to 1 8 kgf m 9 to 10 N m 0 9 to 1 0 kgf m No need to charge refrigerant Need to charge refrigerant 15 m or less Over 15 m up to 20 m 20g m 15 m or less Over 15 m up to 25 m 30g m A Hexagonal wrench is required 8 5 4 Wiring connection 1 Remove the electric parts cover from the outdoor unit 2 Connect the connecting cable to ...

Page 55: ...te control selector switch When two indoor units are installed in the same room or the adjacent two rooms they may be controlled simultaneously with a single remote control To prevent this set either unit and its remote control to B setting Both units are set to A setting before shipment The remote control signal is not recived when the indoor unit setting is different from the remote control one ...

Page 56: ...f the present temperature display To reset the switch to the A setting press the MODE button again while pressing the CHECK button Fig 8 6 3 3 Confirm that the indoor unit can operate with the new setting 8 7 How to Use Drain Pump Kit of Option In the case of upward drainage from the unit Under ceiling installation It is necessary to use Drain pump kit of option parts By using a Drain pump kit it ...

Page 57: ...ame operating mode as before the power failure Information The product was shipped with Auto Restart function in the off position Turn it on as required How to set the auto restart Press and hold the TEMPORARY button for about 3 seconds After 3 seconds the electronic beeper makes three short beeps to tell you the Auto Restart has been selected To cancel the Auto Restart follow the steps described ...

Page 58: ...ation starts 6 The outdoor fan motor stops in the Heating operation 7 The compressor is not turned on even though the room temperature is in the range that the compressor is turned on 8 The operation mode changes in the Auto matic operation 9 The Fan only operation continues in the Automatic operation 10 The Hi POWER operation does not work No Operation of Air Conditioner Descriptions The OPERATIO...

Page 59: ...mpressor is defective Symptom Check Primary judgement 9 3 Primary Judgement 9 3 1 Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them Temperature measurement at the air outlet of the indoor heat exchanger by the indoor temperature sensor Temperature setting of the indoor heat exchanger by the heat exchanger sensor Louv...

Page 60: ...ec Alphanumeric characters are used for the check code is 5 is 6 is A is B is C is D 2 Press TIMER 8 button If there is no fault with a code the indoor unit will beep once Pi and the display of the remote control will change as follows 00 01 02 1d 1E 22 Check the unit with all 35 check codes 00 to 22 as shown in Table 9 4 1 Press TIMER 9 button to change the check code backwards If there is a faul...

Page 61: ...p on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is defected And it returns to the normal condition when recovering from errors The lamp on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is detected 1 Check the indoor thermo sensor TA 2 Check the in...

Page 62: ...ES NO YES NO Does four way valve operate properly Is TC sensor resistance value 10kΩ at 25 C normal Does coil terminal have 220 240 V in heating operation Are circuit wires normal Is outdoor P C board normal Four way valve is defective Outdoor P C board is defective CN11 220 240V Replace Four way valve Circuit check modification Replace TC sensor YES NO YES NO YES YES NO NO YES NO Operation Measur...

Page 63: ...erload Check compressor Outdoor P C board is defective Replace compressor Wiring check modification Replace P C board YES NO YES NO YES NO YES NO YES NO YES NO YES NO NO YES Connect connector properly Replace condenser Replace fan motor Is connector connected properly Is condenser normal Is indoor fan motor normal Does indoor fan operate Are filters clogged Is TC sensor resistance value 10kΩ at 25...

Page 64: ... TA sensor Replace P C board Connect CN03 properly Is TE sensor connector connected properly Is TE sensor resistance value 10 kΩ at 25 C normal Is CN01 TC sensor connector connected properly YES NO YES NO Is TC sensor resistance value 10 kΩ at 25 C normal Indoor P C board is defective Replace TC sensor Replace P C board Connect CN01 properly YES NO YES NO Indoor P C board is defective Replace TE s...

Page 65: ...ler such as discharge thermostat normal Is charged amount of refrigerant normal Is overload relay normal Is TD sensor resistance value 50 kΩ at 25 C normal Are wires connected to connector properly Outdoor P C board is defective Connect wires to connector properly Check and modify charged amount of refrigerant Unit operates normally Replace TD sensor Replace P C board YES NO Replace TD sensor Repl...

Page 66: ... remote controller Select switch to remocon A B for correct same as remote controller Remote control is defective Refer to 9 9 Troubleshooting for Remote Control Unit operates normally Is fuse F01 of indoor control board blown Parts R21 R22 SG01 C15 C01 DB01 C02 and T01 are defective Does the fan motor connector between 1and 3 short circuit Is voltage DC 12V or 5V indicated on rear of indoor contr...

Page 67: ...ted connecting Does the cross flow fan rotate normally Is the rotation signal DC 5V 0V output between 3 Brown lead wire and 2 Gray lead wire of the motor connector CN11 when rotating the cross flow fan by hand in no operating status 3 pulses one turn Turn on the power supply Repair the bearing of the fan NO YES YES NO NO YES YES YES NO Turn the power supply Shut off the power supply once NO NO Doe...

Page 68: ...on Is it possible to detect AC 220 240V between 2 and 3 on terminal block Are all of compressor cords normal Is compressor motor winding normal Check winding resistor Is capacitor for compressor normal Is overload relay normal Does compressor start Does compressor stop after a while Is gas quantity normal Check gas pressure Compressor is defective NO YES YES YES Replace P C board Gas shortage Gas ...

Page 69: ...ible to detect DC 5V at Q60 and 12V at Q50 All lamps on indoor unit normal Are TD and TE sensors normal TD 17 9kΩ at 50 C TE 10kΩ at 25 C Is it possible to detect AC 220 240V at CN11 Does MG switch operate Refer to 9 9 Troubleshooting for Remote Control Check TA and TC sensors or refer to 01 04 in Table 9 4 1 Connect crossover cable properly Refer to 9 8 3 How to check outdoor P C board Replace MG...

Page 70: ...ormal Does compressor start Does compressor stop after a while Is gas quantity normal Check gas pressure Compressor is defective Replace P C board Replace compressor Compressor is defective Capacitor is defective Overload relay is defective Compressor is defective Gas shortage Gas leak Replace capacitor Replace overload relay Replace compressor Supply gas YES YES YES YES YES YES YES YES NO NO NO N...

Page 71: ...outdoor unit stops once it would not operate until the power is turned on again 3 The outdoor unit stops between 10 minutes to 1 hour after starting and a check code is indicated on the remote control Check code 03 1E Refer to Table 9 4 1 2 1 3 Red White S5277G Terminal block Tester S5277G or equivalent G or J type Diode with rated voltage of 400V or more is acceptable Gas has a low circulation Me...

Page 72: ...parts Power relay indoor fan motor drive circuit and control circuit C P U and peripheral circuits buzzer drive circuit and buzzer b Infrared rays parts Infrared rays receiving circuit Check the defects of the P C board with Table 9 8 1 Check whenther or not the fuse F01 is blown Check power supply voltage 1 Between CN30 and CN31 220 240V AC 2 Between and of C02 DC310 340V 3 Between 12V and GND 4 ...

Page 73: ... the fan speed level to HIGH The unit compressor operates continuously in the above condition 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION lamp blinks 1 Check it is impossible to detect the voltage between 3 and 4 of the CN11 2 The motor does not operate But it is possible to receive the signal from the remote control 2 The motor rotates but vibrates strongly...

Page 74: ...tective operation Four times Emergency stop follows 18 Thermo sensor TE circuit All off 19 Heat exchanger sensor TD circuit 1E Heat exchanger sensor TD temperature rise protection 21 IOL operation Dip LED switch 1 Red 2 Yellow 3 Yellow 4 Yellow Table 1 Table 2 Timer short 18 Thermo sensor TE circuit 19 Heat exchanger sensor TD circuit 1E Heat exchanger sensor TD temp rise protection 21 IOL operati...

Page 75: ...FILE NO SVM 04032 73 9 8 4 P C board layout Top View Bottom View ...

Page 76: ...dicated Does indoor unit beep and operate Remote control is defective Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio P C board is defective Keep indoor unit away from thyristor fluorescent light Avoid direct sunlight Replace P C board Replace batteries Normal operation Replac...

Page 77: ...r from the axis of the Front panel After that remove the Air inlet grille 6 Remove the Panel arms from the Front panel How to install the Air inlet grille 1 Insert three Panel arms on the Air inlet grille and fix each securely by screws 2 Set the Air inlet grille arm to the axis of the Front panel Refer to page 47 8 4 3 3 Insert the Grille stopper to the correct position and fix it securely with s...

Page 78: ...through the Front panel Remove the Drain band from the Front panel Cut away the Opening base for piping from Front panel and keep parts 3 Open 3 Cap screws and remove the screws 4 Remove 5 screws fixing the Front panel 5 Remove the hooks of the Panel LED nearly side from the Drain pan Front panel Continue Drain band Drain panel Cap screws Front Panel Screws ...

Page 79: ...t 3 Fix 5 hooks around the Front panel with conformation the Guide rib is inserting into the Back body 4 Fix 8 screws and close 3 Cap screws 5 Install the Drain band into the Front panel 6 Check the gap between the Front panel and the Back body 3 How to remove the Drain pan 1 Remove the Air inlet grille and the Front panel 1 2 2 Remove the Louver motor from the Drain pan 3 Remove the shaft of Hori...

Page 80: ...nect the connecting cable 4 Remove the Connector cover and disconnect the Fan motor cords 5 Remove the TC sensor and earth wire from Refrigeration assembly 6 Remove the Electrical parts assembly NOTE When install the electrical parts assembly fix the screw after the Back body is fixed Drain pan assembly Electrical parts assembly Screw Drain Pan Screw Continue Connecting cable Cord clamp TC sensor ...

Page 81: ...move 2 screws and remove the refrigeration assembly with pushing it to right hand 6 How to remove the Multiblade fan and Fan motor 1 Remove the Air inlet grille and the Front panel 1 2 2 Disconnect 2 connectors 3 Remove the Fan covers 4 Remove the Motor band with holding the Fan motor and then remove the Fan motor with the Multi blade fans 5 Unfasten the Set screw and remove the Multi blade fans R...

Page 82: ...ect the lead wires from the capacitor terminal 1 Perform the common procedure 1 2 Remove the fixing screw 1 screw 4 x 10L 3 Disconnect the lead wires from the capacitor terminal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screw 4 x 16L 3 Disconnect the lead wires from the terminal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screws 4 x 10L 3 Disconnect the housing ...

Page 83: ...the common procedure 1 2 Remove the capacitor band 1 screw 4 x 10L 3 Disconnect the lead wires from the capacitor terminal 1 Perform the common procedure 1 2 Remove the fixing screw 1 screw 4 x 10L 3 Disconnect the lead wires from the capacitor terminal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screws 4 x 10L 3 Disconnect the lead wires from the terminal 1 Perform the common pro...

Page 84: ...m the capacitor terminal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screws 4 x 10L 3 Disconnect the lead wires from the terminal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screws 4 x 10L 3 Disconnect the housing from the P C Board 1 Perform the common procedure 1 2 Disconnect the lead wires from the P C Board 3 Remove P C Board after unhooking 4 clams 1 Perform ...

Page 85: ...43T50302 Temperature sensor 407 43T69311 PC Board 407 43T69312 PC Board 407 43T69313 PC Board 407 43T69314 PC Board 408 43T08349 Switch cover Note Location No 401 and N0 407 43T69311 used for these models RAS 24UFHP E3 RAS 24UFHP E3 RAS 24UFHP ES3 43T69312 used for these models RAS 24UFP E3 RAS 24UFPX E3 RAS 24UFP AR3 RAS 24UFPX3 T RAS 24UFP ES3 RAS 24UFP E3 RAS 18UFPX3 T2 43T69313 used for these ...

Page 86: ...307 Bush Body R 226 43T19308 Bush Body D 227 43T82302 Installation Plate 228 43T60314 Terminal Cover 229 43T62303 Connector Cover 230 43T83003 Remote control Holder 231 43T69309 Wireless Remote control Heating 231 43T69310 Wireless Remote control Cooling 232 43T85335 Owner s Manual RAS 18 24UFHP ES3 232 43T85336 Owner s Manual RAS 18 24UFP E3 232 43T85337 Owner s Manual RAS 18 24UFPX3 232 43T85341...

Page 87: ...020 Bonnet 6 35 Dia 17 43T46019 Valve Packed 12 7 Dia 18 43T47018 Bonnet 12 7 Dia 19 43T47309 Capillary Tube 0 8 Dia Location Part Description No No 20 43T47007 Capillary Tube 1 2 Dia 23 43T49008 Cushion Rubber 24 43T55316 MF Capacitor 45µF 370V 25 43T55318 MF Capacitor 2µF 450V 26 43T60324 Terminal Block 6P 27 43T41800 Compressor PH250X3 4LM 28 43T52302 Magnetic Contactor 29 43T46319 Valve 4way 3...

Page 88: ...14 43043618 Condenser Assembly 15 43T46311 Valve Packed 6 35 Dia 16 43T47020 Bonnet 6 35 Dia Location Part Description No No 17 43T46019 Valve Packed 12 7 Dia 18 43T47018 Bonnet 12 7 Dia 19 43T47309 Capillary Tube 0 8 Dia 20 43T47013 Capillary Tube 2 0 Dia 23 43T49309 Rubber Cushion 24 43T55307 MF Capacitor 45µF 420 V 25 43T55318 MF Capacitor 2µF 450 V 26 43T60324 Terminal Block 6P 27 43T41341 Com...

Page 89: ...Bonnet 15 88 Dia 14 43T47020 Bonnet 6 35 Dia 15 43T47013 Capillary Tube 2 0 Dia 16 43T60324 Terminal Block 6P 18 43T41314 PH210T2 4L7 19 43T62014 Protector Cord 20 43T62015 Protector Cord Location Part Description No No 23 43T49008 Rubber Cushion 24 43T21314 Motor Fan AC220 240 V 50 Hz 25 43T20301 Fan Propeller 491 26 43T96001 Bushing 27 43T96004 Bushing Cord 28 43T62013 Cover E Parts 29 43T52302 ...

Page 90: ...ord 20 43T62015 Protector Cord 21 43T49011 Base Spring A Location Part Description No No 22 43T49012 Base Spring B 23 43T49019 Spring Buffer 24 43T21315 Motor Fan AC 220 240 V 50 Hz 25 43T20301 Fan Propeller 491 26 43T96001 Bushing 27 43T96004 Bushing Cord 28 43T62013 Cover E Parts 29 43T52301 Switch Magnet CLK 35J 220 240V 50 Hz 30 43T55319 MF Capacitor 60µF 440 V 31 43T55317 MF Capacitor 3 5µF 4...

Page 91: ...acked 6 35 Dia 13 43T47310 Bonnet 15 88 Dia 14 43T47020 Bonnet 6 35 Dia 15 43T47013 Capillary Tube 2 0 Dia 16 43T60324 Terminal Block 6P 18 43T41343 2JS386D5BB02 19 43T62014 Protector Cord 20 43T62015 Protector Cord Location Part Description No No 23 43T49309 Rubber Cushion 24 43T21314 Motor Fan AC 220 240 V 50Hz 25 43T20301 Fan Propeller 491 26 43T96001 Bushing 27 43T96004 Bushing Cord 28 43T6201...

Page 92: ...nnet 15 88 Dia 14 43T47020 Bonnet 6 35 Dia 16 43T60324 Terminal Block 6P 18 43T41343 Compressor 2JS386D5BB02 19 43T62014 Protector Cord 20 43T62015 Protector Cord Location Part Description No No 23 43T49309 Rubber Cushion 24 43T21316 Motor Fan AC220 240 V 50 Hz 25 43T20301 Fan Propeller 491 26 43T96001 Bushing 27 43T96004 Bushing Cord 28 43T62013 Cover E Parts 29 30 43T52301 Switch Magnet AC 220 2...

Page 93: ... 87 FILE NO SVM 03010 1 TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...

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