Toshiba RAS-07S2AX-1 Service Manual Download Page 1

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FILE NO. SVM-08028

SERVICE MANUAL

AIR CONDITIONER

SPLIT WALL TYPE

RAS-

07SKSX-1 / RAS-07S2AX-1

RAS-

09SKSX-1 / RAS-09SASX-1

April, 2008

Summary of Contents for RAS-07S2AX-1

Page 1: ...FILE NO SVM 08028 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 07SKSX 1 RAS 07S2AX 1 RAS 09SKSX 1 RAS 09SASX 1 April 2008 ...

Page 2: ...rol 7 4 Auto Restart Function 7 2 Description of Operation Circuit 7 3 Low Temperature Limit Control FILE NO SVM 08028 2 3 Outdoor Unit RAS 09SASX 1 8 INSTALLATION PROCEDURE 8 1 Safety Cautions 8 2 Installation Diagram of Indoor and Outdoor Units 8 3 Installation 8 4 Indoor Unit 8 5 Outdoor Unit 8 6 How to Set Remote Control Selector Switch 8 7 Others 9 TROUBLESHOOTING CHART 9 1 Troubleshooting Pr...

Page 3: ...ndoor Unit 10 2 Outdoor Unit RAS 07S2SX 1 11 EXPLODED VIEWS AND PARTS LIST 11 1 11 4 Outdoor Unit RAS 09SASX 1 FILE NO SVM 08028 11 3 Outdoor Unit RAS 07S2SX 1 11 2 Indoor Unit Indoor Unit E Parts Assy 10 3 Outdoor Unit RAS 09SASX 1 ...

Page 4: ...5 Interconnection Connection type Flare connection pipe Maximum length m 10 1 One way Maximum height m 5 difference INDOOR UNIT RAS 07SKSX 1 RAS 09SKSX 1 Height mm 250 Dimensions Width mm 740 Depth mm 185 Net weight kg Evaporator type Finned tube Indoor fan type Cross flow fan Air volume High fan m3 h 430 470 Fan motor output W 20 Air filter Honeycomb woven filter with PP frame OUTDOOR UNIT RAS 07...

Page 5: ...following temperature conditions Note 2 Temperature Condition JIS C9612 Cooling Indoor unit inlet air temperature DB 27 C WB Outdoor unit inlet air temperature DB 35 C WB 24 C 19 C 1 No need to charge extra refrigerant FILE NO SVM 08028 ...

Page 6: ...2 CONSTRUCTION VIEWS 2 1 Indoor Unit FILE NO SVM 08028 135 16 54 Wireless remote control 5 ...

Page 7: ...FILE NO SVM 08028 6 2 2 Outdoor Unit C L C L 400 280 ...

Page 8: ...ceiver WP 017 and indication parts 1 1 2 2 1 1 2 2 1 1 2 2 3 3 4 4 5 6 7 8 5 6 7 8 1 1 2 2 3 3 4 4 5 6 7 8 5 6 7 8 BLU BLU BLU BLU BLU BLU BLU WHI 4 3 RY01 F01 6 3 A 250 VAC R62 R63 SG01 DSA L01 C25 C26 2 1 3 4 R64 DB01 C27 DC 12V DC 5V C07 IC03 12V MCU CN04 PNK PNK RED BLK WHI CN10 YEL GRY BRW CN11 1 1 2 2 3 3 1 1 2 2 3 3 4 4 5 5 1 1 2 2 3 3 4 4 5 5 YEL YEL YEL YEL WHI CN07 Louver motor Fan motor...

Page 9: ... 240 20A Type A SKF 240 20B Type B Fan motor for outdoor 2 Specifications PH108X1C 4DZDN2 Compressor 1 JMRA99208 9102 ST 001 No Parts name Type Specifications 1 Fan motor for indoor AFS 220 20 4AR AC Motor with 145 C thermo fuse 2 Thermo sensor TA sensor 10k at 25 C 3 Switching power supply T01 4 Microcontroller unit IC30 TMP87CM40ANG 6P68 5 Heat exchanger sensor 10k at 25 C TC sensor 6 Line filte...

Page 10: ...d Black White Black at 20ºC 410 435 Output Rated 20 W 6 poles 1 phase 220 240 V 50Hz Winding resistance Ω Red Black White Black at 20ºC 235 2 260 1 Running capacitor for fan motor Running capacitor for compressor 4 RS44B356U0215S AC 440 V 35µF 5 Overload relay U T 6 1A 80ºC Open 135 5ºC Close 75 11ºC DS451155NPQB AC 450 V 1 5µF 3 WLF 240 20A Type A SKF 240 20B Type B Fan motor for outdoor 2 Specif...

Page 11: ... 43 26 Low temperature 0 42 4 0 Low 21 15 21 15 Standard pressure P MPaG Surface temp of heat exchanger interchanging pipe T1 C Fan speed indoor 50Hz Heat exchanger Indoor unit Cross flow fan Cooling Cooling Compressor Heat exchanger Propeller fan Outdoor unit Capillary tube 1 2x500s PH108X1C 4DZDN2 Cooling Mark means check points of Gas Leak O D 9 52mm O D 6 35mm Cooling Packed valve 9 52 Packed ...

Page 12: ...ger interchanging pipe T1 C Fan speed indoor 50Hz Heat exchanger Indoor unit Cross flow fan Cooling Cooling Compressor Heat exchanger Propeller fan Outdoor unit Capillary tube 1 5x700s QK164PBA Cooling Mark means check points of Gas Leak O D 9 52mm O D 6 35mm Cooling Packed valve 9 52 Packed valve 6 35 0 39m Connecting pipe 9 52 0 49m Connecting pipe 6 35 T1 P Refrigerant R22 0 58 kg Note Measure ...

Page 13: ...sor Outdoor Fan Motor Initiallizing Circuit Clock Frequency Oscillator Circuit Louver Control 3 minutes Delay at Restart for Compressor Processing Temperature Processing Motor Revolution Control Timer Thermo Sensor Infrared Rays Signal Reciver FILE NO SVM 08028 6 CONTROL BLOCK DIAGRAM Remote Control Operation START STOP Operation Mode Selection AUTO COOL DRY AUTO FAN Temperature Setting Fan Speed ...

Page 14: ... emitter 1 Set louver button FIX 2 Auto Louver button SWING 3 Mode select button MODE 4 Reset button RST 5 On timer button ON 6 Off timer button OFF 7 Reserve button SET 8 Cancel button CLR 9 Check button CHK 10 ECO button ECO 11 Fan speed button FAN 12 Start Stop button START STOP 13 Temperature button 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 7 1 Remote control 7 1 1 Function of Push Putton ...

Page 15: ...ton to start and press it again to stop operate 5 A B change indicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller seting is A there is no indication at this position 8 7 FILE NO SVM 08028 14 5 6 Swing Indicate when louver is swing Press swing button to start the swing operation and press it again to s...

Page 16: ...le 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 measurement of the indoor heat exchanger by the heat exchanger sensor Louver motor control Indoor fan motor operation control LED display control Transferr...

Page 17: ...g operation MODE button on the remote control is set to the cooling operation 1 The compressor outdoor fan and operation display lamp are controlled as shown in Fig 7 3 2 Fig 7 3 2 2 When FAN button is set to AUTO the indoor fan motor operates as shown in Fig 7 3 5 When FAN button is set to LOW MED or HIGH the motor operates with a constant air flow 1 2 3 3 2 5 2 1 5 1 0 5 0 5 0 M Preset temp C Ro...

Page 18: ... OFF 4min ON 5min OFF 5min Room temp Preset temp 7 3 4 Automatic operation MODE button on the remote control is set to the automatic operation 1 One of 2 operations Cooling or Fan only 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 3 6 The Fan only operation continues until the room temperat...

Page 19: ... Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work...

Page 20: ...red to operate at this time press RESET button once more or use the remote controller to turn it on 7 5 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the sys...

Page 21: ...e 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 TOSHIBA dealer immediately CAUTION Exposure of unit to water or other moisture before installation could result in ele...

Page 22: ... 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 acceptance please c...

Page 23: ...auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Rear left Left Bottom left Right Rear right Bottom right 8 2 Installation Diagram of Indoor and Outdoor Units FILE NO SVM 08028 Before installing the wireless remote control With the remote control cover open load the batteries supplied correctly observing their polarity 2 Wireless remote control 3...

Page 24: ...tallation 8 3 1 Optional installation parts Fixing bolt arrangement of outdoor unit Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind Use 8 mm or 10 mm anchor bolts and nuts Refrigerant piping Liquid side 6 35 mm Gas side 9 52 mm Fig 8 3 1 500 mm 97 mm 53 mm 280 mm Drain outlet Air outlet Air inlet ...

Page 25: ... Installation plate x 1 Wireless remote control x 1 Part name Q ty Battery x 2 Part No Part No Others Name Owner s manual Installation manual Part name Q ty Pan head wood screw l l 3 1 x 16 x 2 Mounting screw 4 x 25 x 6 Remote control holder x 1 3 4 5 6 7 Active Carbon Catechin filter x 2 ...

Page 26: ...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 shown below Fig 8 4 1 45 45 75 Top view Indoor unit Reception range Reception range Remote control Indoor unit Remote control Side view 8 4 2 Cutting a hole and mounting installation plate ...

Page 27: ...all Insert clip anchors for appropriate 6 mounting screws NOTE Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it Installation plate Keep horizontal direction Power source 50 Hz 220 240 V Single phase Maximum 7 5A running current Plug socket 16A fuse rating Power cord 1 mm2 or more 8 4 3 Electrical work 1 The supply voltage must be the same as t...

Page 28: ...ning torque 1 2 N m 0 12 kgf m 7 Secure the connecting cable with the cord clamp 8 Fix the terminal cover rear plate bushing and air inlet grille on the indoor unit CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel Check local electrical cords and also any specific wiring instructions or limitations Fig 8 4 5 Fig 8 4 6 NOTE Use stranded wire only Wire type H07 RN...

Page 29: ... 8 4 9 How to fix the drains cap 1 Insert hexagonal wrench 4 mm in a center head Fig 8 4 10 2 Firmly insert drains cap Fig 8 4 11 CAUTION Firmly insert the drain hose and drain cap otherwise water may leak In case of right or left piping After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool Fig 8 4 12 In case of bottom right ...

Page 30: ...ing tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material When bending a pipe carefully do it not to crush it Installation plate Auxiliary pipes Indoor unit Connecting cable 8 4 5 Indoor unit fixing 1 ...

Page 31: ... not disturb your neighbors A place which is not exposed to a strong wind A place free of a leakage of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet An allowable length of the connecting pipe is up to 10 m An allowable height level is up to 5 m A place where the drain water does not raise any pro...

Page 32: ...ter dia Tightening torque of copper pipe 6 35 16 to 18 1 6 to 1 8 kgf m 9 52 30 to 42 3 0 to 4 2 kgf m 8 5 2 Refrigerant piping connection 1 Cut the pipe with a pipe cutter Fig 8 5 2 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Fig 8 5 3 FILE NO SVM 08028 Fig 8 5 4 Internally threaded side A Rigid Imperial 6 35 0 5 to 1 0 1 0 to 1 5 9 52 0 5 to 1 0 1...

Page 33: ...air conditioner which use R410A refrigeration cycle trouble may result 1 Connect the charge hose from the manifold valve to the service port of the gas side packed valve 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the gauge manifold valve 4 Operate the vacuum pump to start evacuating Perform evacuating for about 15 minutes if the piping len...

Page 34: ... 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 FILE NO SVM 08028 75 mm 10 mm 10 mm 65 mm Earth line Connecting cable Screw Cord clamp Earth li...

Page 35: ...the steps described in the section Auto Restart Function of the Owner s Manual Valve stem cap connection Service cap connection Valve cover 2 Set the remote control selector switch with the remote control B is indicated on the liquid crystal display when setting remote control selector switch to B A is not indicated on the display even if the selector switch is set to A 1 Load the remote control w...

Page 36: ...f 4 The compressor is not turned on and off even though the thermo control is operated in the Dry operation The compressor is not turned on even though the room temperature is in the range that the compressor is turned on 6 The operation mode changes in the Automatic operation 7 The Auto Fan operation continues in the Automatic operation 8 The ECO operation operation does not work The compressor i...

Page 37: ...ing 5Hz E OPERATION lamp is blinking 5Hz F OPERATION and TIMER lamps are blinking 5Hz G OPERATION and TIMER lamps are blinking Table 9 3 2 Diagnosis by detective operation The remote control does not work The outdoor fan does not rotate Turn off the power supply once then turn it on Try to operate the remote control The compressor operates The compressor does not operate The remote control still d...

Page 38: ...splay of the remote control The timer lamp on the indoor unit blinks continuously 5 times per 1 sec 2 Press 8TEMP 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 9TEMP button to change the check code backwards If there is a fault the i...

Page 39: ...or 2 If it is OK check P C board 1 Check heat thermal fuse is blow or not Terminal block part 2 If the thermal fuse is not blow check indoor fan motor Refer to trouble shooting flow charts Replace P C borad 1 Check connective cable correct if wiring is wrong 2 Check thermal fuse and Terminal blocks 3 If it is OK check P C board 1 If overload relay and themostat for compres sor are OK check refrige...

Page 40: ...on Is the indication voltage DC12V or 5V of main P C board correct Does the CN12 connector the wrong connecting P C board is defective Replace the main P C board Is the voltage across C27 measured DC310 340V Refer to the paragraph Pre check or defective circuit before power P C board block Is the voltage across C32 Shut off the power supply once and turn it on again after disconnecting the motor c...

Page 41: ...oes the OPERATION lamp blink Is it wired as shown in Figure below Return the wiring of the power relay is returned to the normal procedure To the paragraph of No Power turns on YES NO NO YES FILE NO SVM 08028 40 1 2 Black White Indoor Terninal Block CN31 RY01 Blue Brown Green Yellow 3 4 Supply 50 60 Hz AC 220 240V ...

Page 42: ...ES YES YES Does the power turn on by pushing the START STOP button of the remote control Is AC 220 240V supplied between terminal block 1 2 Relays RY01 Q02 or IC30 is failure Replace the P C board Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Does the OPERATION lamp blink See Power can not be turned on 9 5 3 Outdoor unit does not oper...

Page 43: ...ard Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Is the voltage across the outdoor terminal 1 2 AC 220 240V Cables between indoor and outdoor units are defective Are all the cords for compressor normal Re wire or replace the defective cords Is the compressor motor winding normal Check the winding resistor Compressor is defective Is t...

Page 44: ...ure Replace the P C board Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Cables between indoor and outdoor units are defective Are all the cords for outdoor fan motor normal Correct the wire or replace the defective cords Is the outdoor fan motor winding normal Check the winding resistance Outdoor fan motor is defective Is the capacito...

Page 45: ...f cooling to hight fan Does the cross flow fan rotate normally Repair the bearing of the fan Thermal fuse operated due to prevent temperature rising cause of incompleted connecting Shut off the power supply Turn on the power supply Does the fan speed become higher Operation stops Motor control circuit failure IC30 IC03 Q08 or 12V power circuit failire Replace the P C board Is the rotation signal D...

Page 46: ... light NO NO NO NO NO NO NO NO Is operation possible when setting the temporary switch of the air conditioner main unit to TEST RUN or TEMPORARY AUTO Can any signal tone be heard when transmitting within 5 cm distance from the radio P C board is failure Replace P C board Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Battery life R...

Page 47: ...d hold the Whole housing Do not pull at the lead wire 2 Inspection procedres 1 When a P C board is judged to be defective check for disconnection burning or discolora tion of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part power relay indoor fan motor drive circuit and control circuit C P U and peripheral circuits buzzer drive circu...

Page 48: ...n pin C of Q02 and GND 2 Between No 1 and 2 of connecting cable terminal block AC 220 240V 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec 1 Compressor does not operate 2 OPERATION lamp blinks 1 Motor does not rotate The key operation is accepted 2 The Motor rotates but it vibrates too much Shut off the power supply and remove the P C board assembly f...

Page 49: ... START STOP signal to the indoor unit Table 9 6 3 Approximate resistance value of thermo sensor Temperature 0 C 10 C 20 C 25 C 30 C Resistance value 33 8 20 35 12 59 10 00 7 99 kΩ FILE NO SVM 08028 MODE AUTO COOL FAN TEMP TEMP START STOP SWING MODE TIMER ON OFF SET CLR ECO RST CHK FIX FAN AUTO QUIET AUTOFAN DRY Hr ON OFF 1 2 2 1 ...

Page 50: ...he screw for the electrical part box Then remove the LED and the electrical part box from the main unit How to mount the electrical part 1 To put back the electrical part box lock it to the upper hook of the back body 2 Tighten the screws on the electrical part box 3 Connect the 3 connectors and arrange the wiring same as original condition and then tighten the screw from the LED unit to the back ...

Page 51: ... assemble cross flow fan and fan motor to the unit please turn the fan motor unit the center of its terminal meets the top position of band motor R Fix the cross flow fan with the set screw at the position where the gap between the back body and the right surface of the cross flow fan is 4 7 mm 1 Remove the front panel electrical part horizontal louver heat exchanger and the cross flow fan followi...

Page 52: ...ing the power cord and connecting cable attach the cord clamp and wiring cover Insert the upper part into the upper cabinet and insert the claw which has been hooked to the lower part into the square hole and then fix it with screw ST1T 4 x 10s 1 pc 3 Attach the valve cover ST1T 4 x 10s 1 pc Insert the upper part to the upper cabinet set the hook claw of the valve cover to square holes at three po...

Page 53: ...ed for the ASM E PARTS and pinch the lead wires using the closed end splice 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 10s 3 pcs 4 Remove the sound insulation material 5 Remove the terminal cover of the compressor and disconnect the lead wire of the compressor thermo and the compressor from the terminal 6 Remove the pipe connected to the compressor with a burner Make sure the ...

Page 54: ...n guard in the hole of the front cabinet Push the hooking claws 8 positions by your hand and fix the claws Requirement This completes all the attaching work Check that all the hooking claws are fixed to the specified positions 5 Fan guard Minus screwdriver Hooking claw 1 Perform the common procedure 1 2 Remove the fixing screw and the capacitor band 1 Screw 4 x 10s 6 Capacitor for compressor 7 Cap...

Page 55: ...on Part No No No No 401 43T60378 TERMINAL 410 43T62003 CORD CLAMP 403 43T69371 SENSOR HEAT EXCHANGER 411 43T69745 PC BOARD RAS 07SKSX 1 404 43T69005 SENSOR THERMOSTAT 411 43T69746 PC BOARD RAS 09SKSX 1 405 43T69612 DISPLAY UNIT 414 43T60343 POWER CORD 406 43T69364 FUSE TEMPERATURE Description Description ...

Page 56: ...3T39320 MOTOR BAND LEFT 206 43T70313 HOSE DRAIN 221 43T39321 MOTOR BAND RIGHT 207 43T79301 CAP DRAIN 222 43T21393 FAN MOTOR 208 43T21363 MOTOR STEPPING 224 43T82309 INSTALLATION PLATE 209 43T44424 REFRIGERATION CYCLE ASSY 225 43T69437 WIRELESS REMOTE CONTROL 210 43T47353 PIPE SUCTION RAS 13 226 43T63002 REMOTE CONTROL HOLDER 211 43T47355 PIPE SUCTION U1U2_GD 227 43T62326 TERMINAL COVER 212 43T1131...

Page 57: ...43T00481 UPPER CABINET 7 43T46332 VALVE PACKED 6 35 DIA 22 43T96305 BUSHING 8 43T00347 VALVE PACKED 9 52 DIA 23 43T62323 TERMINAL COVER 9 43T47331 BONNET 6 35 DIA 24 43T19336 FIN GUARD 10 43T47332 BONNET 9 52 DIA 25 43T54314 RELAY OVERLOAD 11 43T47007 CAPILLARY TUBE 1 2 DIA 26 43T61310 ELECTRIC PARTS BASE 12 43T00486 FRONT CABINET 27 43T55338 CAPACITOR PLASTIC FILM 13 43T21401 MOTOR FAN 28 43T5532...

Page 58: ...COVER 6 43T00448 FIXING PLATE VALVE 21 43T00481 UPPER CABINET 7 43T46332 VALVE PACKED 6 35 DIA 22 43T96305 BUSHING 8 43T00347 VALVE PACKED 9 52 DIA 23 43T62323 TERMINAL COVER 9 43T47331 BONNET 6 35 DIA 24 43T19336 FIN GUARD 10 43T47332 BONNET 9 52 DIA 25 43T54303 RELAY OVERLOAD 11 43T47008 CAPILLARY TUBE 1 5 DIA 26 43T61310 ELECTRIC PARTS BASE 12 43T00487 FRONT CABINET 27 43T55337 MF CAPACITOR 13 ...

Page 59: ... 72 FILE NO SVM 03001 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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