Toshiba RAS-18UA-AR4 Service Manual Download Page 91

Page: 91 / 95

– 90 –

FILE NO. SVM-05015

11-6. Outdoor Unit (RAS -18UAX4-T2)

Location

Part

Location

Part

No.

43T00024

PANEL; AIR OUTLET

43T41369

COMPRESSOR (PH290X2C-4FT1)

43T00025

PANEL; FRONT

43T62014

PROTECTOR; CORD

43T00026

PANEL;SIDE

43T62015

PROTECTOR; CORD

43T42316

BASE ASSY

43T49008

CUSHION,RUBBER

43T19320

GUARD; FIN

43T21314

MOTOR FAN; AC220-240V 50Hz

43T19319

GUARD; FAN

43T20301

FAN;PROPELLER;PP491

43T91001

PLATE;ROOF

43T96001

BUSHING

43T42005

PLATE; VALVE; PACKED

43T96004

BUSHING; CORD

43T15001

HANDLE

43T62013

COVER; E-PARTS

10 43T43320 CONDENSER ASSEMBLY 29 43T52302 MAGNETIC CONTACTOR; AC220-240V
11

43T46014

VALVE;PACKED; 15.88

43T55320

MF CAPACITOR (35uF 440V)

43T46016

VALVE;PACKED 6.35

43T55321

MF CAPACITOR (3.5uF 450V)

43T47334

BONNET; 15.88 DIA.

43T96003

CLIP; CABLE

43T47331

BONNET, 6.35 DIA

43T47317

NUT; FLANGE

43T47013

CAPILLARY TUBE; 2.0 DIA

43T33002

SPARK-KILLER

43T60324

TERMINAL BLOCK;6P

Description

Summary of Contents for RAS-18UA-AR4

Page 1: ...18UFP E4 RAS 18UA E4 RAS 18UFPX4 RAS 18UAX4 RAS 18UFP AR4 RAS 18UA AR4 RAS 18UFPX4 T2 RAS 18UAX4 T2 RAS 24UFHP E4 RAS 24UAH E4 RAS 24UFP E4 RAS 24UA E4 RAS 24UFPX4 RAS 24UAX4 RAS 24UFP AR4 RAS 24UA AR4 FILE NO SVM 05015 18 Class Heat pump model 24 Class 18 Class Cooling only model May 2005 ...

Page 2: ...4UFPX4 RAS 24UAX4 RAS 24UFP AR4 RAS 24UA AR4 4 SPECIFICATION OF ELECTRICAL PARTS 4 1 Indoor Unit 4 2 Outdoor Unit RAS 18UAH E4 4 3 Outdoor Unit RAS 18UAX4 RAS 18UA E4 4 4 Outdoor Unit RAS 18UA AR4 4 5 Outdoor Unit RAS 18UAX4 T2 4 6 Outdoor Unit RAS 24UAH E4 4 7 Outdoor Unit RAS 24UA E4 RAS 24UAX4 4 8 Outdoor Unit RAS 24UA AR4 RAS 18AX4 T2 RAS 18UFPX4 T2 RAS 18UAX4 T2 5 REFRIGERATION CYCLE DIAGRAM ...

Page 3: ...ndoor 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 Wiring Interconnect Cable and Serial...

Page 4: ...it E Parts Assy 11 2 Indoor Unit 11 4 Outdoor Unit RAS 18UA E4 RAS 18UAX4 11 6 Outdoor Unit RAS 18UAX4 T2 11 7 Outdoor Unit RAS 24UAH E4 11 8 11 9 Outdoor Unit RAS 24UA E4 RAS 24UAX4 Outdoor Unit RAS 24UA AR4 11 5 Indoor Unit RAS 18UA AR4 11 3 Outdoor Unit RAS 18 UAH E4 ...

Page 5: ...tion type Flare connection pipe Maximum length m 15 1 One way 20 2 Maximum height m 8 difference INDOOR UNIT RAS 18UFHP E4 RAS 18UFP E4 RAS 18UFP AR4 RAS 18UFPX4 T2 RAS 18UFPX4 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 volume Medium fan m3 h 680 700 680 730 Low fan m3 h 580 650 ...

Page 6: ...m 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 E4 RAS 24UFP AR4 RAS 24UFPX4 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 930 930 900 Air volume Medium fan m3 h 750 760 750 Low fan m3 h 650 660 650 Fa...

Page 7: ...Condition JIS B8615 1 Cooling Heating 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 RAS 18UFHP E4 RAS 18UAH E4 RAS 24UFHP E4 RAS 24UAH E4 RAS 18UFP E4 RAS 18UA E4 RAS 24UFP E4 RAS 24UA E4 RAS 18UFPX4 RAS 18UAX4 RAS 24UFPX4 RAS 24UAX4 Refrigerant RAS 18UFP AR4 RAS 18UA AR4 RAS 24UFP AR4 RAS 24UA AR4 RAS 18UFPX4 T2 RAS 18UAX4 T...

Page 8: ...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 9: ... 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 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: ...r bolt 436 4x 11 Long holes For 8 10 anchor bolt 11x14 Hole 6 Hole 36 52 310 330 R15 270 600 90 780 62 COVER PV Electrical part cover Liquid side Flare 6 35 Gas side Flare 12 7 Service port 600 or more 100 or more 600 or more 100 or more 325 600 Air inlet Air outlet Installation dimension 120 75 5 4 B Z Z View 10 FILE NO SVM 05015 2 4 Outdoor Unit RAS 18UA E4 RAS 18UAX4 RAS 18UA AR4 ...

Page 12: ...U 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 J4...

Page 13: ...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 3 1 1...

Page 14: ... 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 TION B...

Page 15: ...RN 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 1 2 3...

Page 16: ...LU 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 J401 CN40...

Page 17: ...RAIN 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 1 2 3 3 3 6 6 3 3...

Page 18: ...EA12 Output Rated 2W 6poles 4phase DC 12V 4 2 Outdoor Unit RAS 18UAH E4 No Parts name Type Specifications Output Rated 1500 W 2 poles 1 phase 220 240 V 50 Hz 1 Compressor 2JS350D5DA02 Winding resistance Ω C R C S at 20 C 0 981 2 845 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 capaci...

Page 19: ...ance Ω C R C S at 20 C 1 46 2 47 Output Rated 42 W 6 poles 1 phase 220 240 V 50 Hz 2 Fan motor for outdoor WLF 240 42A 1 Winding resistance Ω Red Black White Black at 20 C 188 289 3 Running capacitor 451155L AC 450 V 1 5µF for fan motor 4 Running capacitor BUM44X4505B AC 440 V 45µF for compressor 5 Magnetic contactor CLK 26J 220 240 V 50 Hz No Parts name Type Specifications Output Rated 1500 W 2 p...

Page 20: ... kΩ at 25 C 50 kΩ at 25 C 7 Magnetic contactor A35 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 24UAH E4 4 8 Outdoor Unit RAS 24UA E4 RAS 24UAX4 No Parts name Type Specifications Output Rated 2200 W 2 poles 1 phase 220 240V 50 Hz 1 Compressor PH400X3CS 4KT1 Winding resistance Ω C R...

Page 21: ...H400X3CS 4KTS1 Winding resistance Ω C R C S at 20 C 1 01 2 32 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 451305L for fan motor 4 Running capacitor AC 420 V 60µF for compressor 5 Magnetic contactor A35 220 240V 50 Hz 20 FILE NO SVM 05015 ...

Page 22: ...high temperature 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 0x600S 2JS350D5A02 Accumulator Cooling Heating O D ...

Page 23: ...z 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 PH340X3C 4KT1 O D 6 35 mm Packed valve 12 70 Packed valve T P Refrigerant R 22 1 17 kg Evaporator Capillary tube 2 0x1400S 0 49m Connecting pipe 6 35 mm Mark means check points of...

Page 24: ... 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 PH340X3C 4KTS1 O D 6 35 mm Packed valve 12 70 Packed valve T P Refrigerant R 22 1 20 kg Evaporator Capillary tube 2 0x1000S Capillary tube 0 8x1200S 0 49m Connecting pipe 6 35 mm Mark means check points of...

Page 25: ...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 Conn...

Page 26: ... 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 0x1080S 2JS386D5BB02 Accumulator Cooling Heating Mark means check p...

Page 27: ...Surface temp of heat exchanger interchanging pipe T C Evaporator Indoor unit Multi blade fan Compressor Condenser Propeller fan Outdoor unit Capillary tube 2 4x1500S PH400X3CS 4KT1 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 70kg 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 Coo...

Page 28: ...p 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 PH400X3CS 4KTS1 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 70kg Mark means check points of Gas L...

Page 29: ...rol 3 minute Delay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer Drain Pump ON OFF Serial Signal Communication Remote Control Infrared Rays 36 7 kHz 8 MHz M C U Indoor Unit Control Panel OPERATION Display Indoor Fan Motor Louver Motor Float Switch Drain Pump From Outdoor Unit Serial Signal Transmitter Receiver Operation Operation Remote Control Operatio...

Page 30: ...ay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer Drain Pump ON OFF Compressor ON OFF Remote Control Infrared Rays 36 7 kHz 8 MHz M C U Indoor Unit Control Panel OPERATION Display Indoor Fan Motor Louver Motor Float Switch Drain Pump Power Supply Circuit Noise Filter Driver Operation Operation Remote Control Operation Mode Selection AUTO COOL DRY FAN ONL...

Page 31: ...tdoor 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 the air inlet of the indoor heat exchanger by the indoor temperature sensor Temperature setting of the indoor heat exchanger by the heat exchanger sensor Louver motor control Indoor fan motor operation co...

Page 32: ... marked with 1 are calculated and controlled by the difference in motor speed between M and L 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 lamp are controlled as shown in Fig 7 2 2 Fig 7 2 2 2 When FAN button is set to AUTO the indoor fan motor operates as shown in Fig 7 2 3 When FAN button ...

Page 33: ...wn in Fig 7 2 4 Fig 7 2 4 2 The microprocessor 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 to AUTO only 4 ...

Page 34: ...ng Fan only or Heating is selected according to difference between the preset temperature and the room temperature at which the automatic operation has started as shown in Fig 7 2 9 The Fan only operation continues until the room temperature reaches a level at which another mode is selected 2 Temporary Auto When the TEMPORARY button on the indoor unit is pushed the preset temperature is fixed at 2...

Page 35: ...ure 7 3 Hi PO 2 Cooling operation The setting temperature drops 3 C The value of the setting temperature on the remote control does not change If the room temperature is higher than the setting temperature by 3 5 C or more the horizontal louver moves to the Hi POWER position automatically Then when the room temperature is 1 C less than the setting temperature the horizontal louver returns automati...

Page 36: ...5 min ofter operation C Zone If 2ºC Teo 10 C defrost will start when 7 6 2 Defrost finish condition 1 If Te 3 C at least 60 sec 4 way value on 2 If Te 8 C 4 way value on Timing Fig 7 6 2 Operation time 4 Loops Tt Td1 Td2 FILE NO SVM 05015 35 Teo Te 3 C at least 20 sec or 60 min after operation Td3 Td4 Finish time record Start time record Defrost time rate Td Tt x 100 Heating time rate Tt Td x Tt ...

Page 37: ...ceed as follows The power supply to the unit must be on the function will 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 While the filter check lamp is on the TEMPOR...

Page 38: ...eck lamp Press FILTER button on the remote control Or push TEMPORARY button 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 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 un...

Page 39: ...r When AUTO RESET is ON or green color When AUTO RESTART is OFF Hold down the TEMPORARY button for more than 20 seconds The air conditioner will stop suddenly when the TEMPORARY button is pressed but keep holding it continue Then will beep 3 times is the first 3 seconds but it is not related to Self Cleaning function After holding about 20 seconds the air conditioner will beep 5 times and OPERATIO...

Page 40: ...apacity 7 11 1 Cooling mode The fan speed of indoor unit operates automatically it relates with the compressor s operation Compressor s Operation Fan Speed ON L OFF SL The preset temperature will increase 1 C after the Comfort sleep mode has operated for 1 hour and automatically the temperature will increase another 1 C after the comfort sleep mode has operated for 2 hour The value of the preset t...

Page 41: ...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 42: ...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 43: ...rew 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 Extension drain hose Not available Extension drain hose Extension drain hose Not available Electric parts cover Electric parts cover 18 Class Heat pump 600 mm or more 24 Class 18 Class Cooling only 600 mm or more 600 mm or more 100 mm or more 600...

Page 44: ... 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 18UFPX4 T2 Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes Air outlet Air outlet Drain outlet Air inlet 600 mm 325 mm 5...

Page 45: ...y x 2 Remote control holder x 1 Part name Q ty Filter frame x 2 Bio enzyme Ginglo filter x 1 Sasa zeolite plus 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 ...

Page 46: ...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 47: ...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 48: ...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 49: ...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 50: ... 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 51: ...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 52: ...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 53: ...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 54: ...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 55: ...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 56: ...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 57: ...ile pressing the CHECK button B is indicted at the right of 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 Dr...

Page 58: ...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 59: ... operation 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 OPE...

Page 60: ...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 61: ...s continuously 5 times per 1 sec 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 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 fault the indoor unit will beep for 10 seconds Pi Pi Pi Note the check cod...

Page 62: ... errors The lamp 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...

Page 63: ...ES NO YES 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 Replace Four way valve Circuit check modification Replace TC sensor YES NO YES NO YES YES NO NO YES NO Indoor P C board is def...

Page 64: ...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 65: ... 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 66: ...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 67: ...as 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 con...

Page 68: ...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 69: ...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 70: ...ng normal Check winding resistor NO Compressor is defective YES Replace compressor Is capacitor for compressor normal NO Capacitor is defective Is it possible to detect AC 200V between 2 and 3 on terminal block Is crossover cable normal YES Is overload relay normal Does compressor start Does compressor stop after a while Is gas quantity normal Check gas pressure Compressor is defective Replace P C...

Page 71: ... 70 Inspection procedure Heating model Replace transformer FILE NO SVM 05015 AC 70 100V outdoor P C board ...

Page 72: ... compressor motor winding normal Check winding resistor Is gas quantity normal Check gas pressure Is capacitor for compressor normal Is overload relay normal Does compressor start Does compressor stop after a while Replace compressor Compressor is defective Compressor is defective NO Capacitor is defective NO Overload relay is defective NO Compressor is defective NO Gas shortage Gas leak FILE NO S...

Page 73: ...o restart the unit 2 1 3 Terminal block on indoor side Terminal block Tester Red White 2 The 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 Measure gas pressure Gas shortage Pipe clogging Compressor is turned...

Page 74: ...ndoor 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 TP3 and TP4 of CN30 and CN31 220 240V AC 2 Between and of C02 DC310 340V 3 Between 12V and GND 4 Betw...

Page 75: ...sor operates 2 Check whether or not the OPERATION lamp blinks 1 Check it is impossible to detect the voltage between 2 and 3 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 1 The temperature of the indoor heat exchanger is extremely high 2 The connector of the heat ex changer sensor short circuited ...

Page 76: ...FILE NO SVM 05015 75 9 8 4 P C board layout Top View Bottom View ...

Page 77: ...s 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 Replace remote co...

Page 78: ...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 79: ...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 80: ...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 81: ...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 82: ...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 83: ...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 the co...

Page 84: ...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 85: ...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 procedure 1 2 Remove the fix...

Page 86: ...it 406 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 E4 RAS 24UFHP E4 RAS 24UFHP ES4 43T69312 used for these models RAS 24UFP E4 RAS 24UFPX E4 RAS 24UFP AR4 RAS 24UFP ES4 RAS 24UFP E4 RAS 18UFPX4 T2 43T69313 used for these models ...

Page 87: ...OLDER REMOTE CONTROLLER 208 43T00360 CAP SCREW LR 231 43T69421 WIRELESS REMOCO WH H01EE 209 43T20303 FAN COVER FOR Heat pump model 210 43T20304 MOTOR BAND ASSY 231 43T69422 WIRELESS REMOCO WC H01EE 211 43T20305 FAN ASSY MULTIBLADE FAN FOR Cooling model 212 43T19309 SCREW SET D T 232 43T85490 OWNER S MANUAL 213 43T21325 FAN MOTOR 232 43T85491 OWNER S MANUAL 214 43T72301 DRAIN PAN ASSY FOR RAS 18 24...

Page 88: ...30 43T46330 COIL V 4WAY AC220 240V 50Hz 09 43020302 FAN PROPELLER PP411 31 43T69059 SENSOR TE 10 43T21333 MOTOR FAN AC220 240V 50Hz 32 43T69060 SENSOR TD 11 43T47001 NUT FLANGE 33 43T79305 DRAIN NIPPLE 13 43T96001 BUSHING 34 43T58301 TRANSFORMER TT 05 14 43043609 CONDENSER ASSEMBLY 35 43T69336 PC Board 15 43T46311 VALVE PACKED 6 35 DIA 36 43T43316 SUB CONDENSOR 16 43T47331 BONNET 6 35 DIA 37 43T47...

Page 89: ...R M6 05 43T62311 ELECTRIC PART COVER 18 43T49008 CUSHION RUBBER 06 43T20307 FAN PROPELLER 19 43T52310 PACKED VALVE COVER ASSEMBLY 07 43T21345 FAN MOTOR 20 43T00396 UPPER CABINET ASSEMBLY 08 43T47001 NUT FLANGE 21 43T55322 MF CAPACITOR 45uF 440V 09 43T43359 CONDENSER ASSEMBLY 22 43T55325 CAPACITOR PLASTIC FILM 10 43T46308 VALVE PACKED 6 35 DIA 23 43T60352 TERMINAL BLOCK 6P 11 43T46019 VALVE PACKED ...

Page 90: ...05 43T62311 ELECTRIC PART COVER 18 43T49008 CUSHION RUBBER 06 43T20307 FAN PROPELLER 19 43T52310 PACKED VALVE COVER ASSEMBLY 07 43T21348 FAN MOTOR 20 43T00396 UPPER CABINET ASSEMBLY 08 43T47001 NUT FLANGE 21 43T55326 MF CAPACITOR 50uF 440V 09 43T43360 CONDENSER ASSEMBLY 22 43T55324 CAPACITOR PLASTIC FILM 10 43T46308 VALVE PACKED 6 35 DIA 23 43T60352 TERMINAL BLOCK 6P 11 43T46019 VALVE PACKED 12 7 ...

Page 91: ... 43T20301 FAN PROPELLER PP491 07 43T91001 PLATE ROOF 26 43T96001 BUSHING 08 43T42005 PLATE VALVE PACKED 27 43T96004 BUSHING CORD 09 43T15001 HANDLE 28 43T62013 COVER E PARTS 10 43T43320 CONDENSER ASSEMBLY 29 43T52302 MAGNETIC CONTACTOR AC220 240V 11 43T46014 VALVE PACKED 15 88 30 43T55320 MF CAPACITOR 35uF 440V 12 43T46016 VALVE PACKED 6 35 31 43T55321 MF CAPACITOR 3 5uF 450V 13 43T47334 BONNET 15...

Page 92: ... 450V 09 43T15001 HANDLE 32 43T96003 CLIP CABLE 10 43T43357 CONDENSER ASSEMBLY 33 43T46319 4 WAY VALVE 11 43T46014 VALVE PACKED 15 88 34 43T46330 COIL V 4WAY AC220 240V 50Hz 12 43T46016 VALVE PACKED 6 35 35 43T69059 SENSOR TE 13 43T47334 BONNET 15 88 DIA 36 43T69060 SENSOR TD 14 43T47331 BONNET 6 35 DIA 37 43T79305 DRAIN NIPPLE 15 43T47013 CAPILLARY TUBE 2 0 DIA 38 43T58301 TRANSFORMER TT 05 16 43...

Page 93: ...AN 26 43T96001 BUSHING 07 43T91001 PLATE ROOF 27 43T96004 BUSHING CORD 08 43T42005 PLATE VALVE PACKED 28 43T62013 COVER E PARTS 09 43T15001 HANDLE 29 43T52305 MAGNETIC CONTACTOR 10 43T43349 CONDENSER ASSEMBLY 30 43T55322 MF CAPACITOR 45uF 440V 11 43T46014 VALVE PACKED 15 88 31 43T55321 MF CAPACITOR 3 5uF 450V 12 43T46016 VALVE PACKED 6 35 32 43T96003 CLIP CABLE 13 43T47334 BONNET 15 88 DIA 40 43T4...

Page 94: ...07 43T91001 PLATE ROOF 27 43T96004 BUSHING CORD 08 43T42005 PLATE VALVE PACKED 28 43T62013 COVER E PARTS 09 43T15001 HANDLE 29 43T52305 MAGNETIC CONTACTOR 10 43T43349 CONDENSER ASSEMBLY 30 43T55309 MF CAPACITOR 60uF 420V 11 43T46014 VALVE PACKED 15 88 31 43T55321 MF CAPACITOR 3 5uF 450V 12 43T46016 VALVE PACKED 6 35 32 43T96003 CLIP CABLE 13 43T47334 BONNET 15 88 DIA 40 43T47317 NUT FLANGE 14 43T4...

Page 95: ... 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 ...

Search results

Summary of Contents for RAS-18UA-AR4

Reviews:

Related manuals for RAS-18UA-AR4

Brands by name

Popular brands

Toshiba RAS-18UA-AR4, Service Manual

Search results

Summary of Contents for RAS-18UA-AR4

Reviews:

Related manuals for RAS-18UA-AR4

Brands by name

Popular brands