Toshiba RAS-10BAV-E1, Service Manual

Page 1: ...SERVICE MANUAL SPLIT TYPE Revised on November 2017 Indoor Unit RAS 10BKV E1 RAS 13BKV E1 Outdoor Unit RAS 10BAV E1 RAS 13BAV E1 FILE NO SVM 17030 3 ...

Page 2: ...5 WIRING DIAGRAM 17 6 SPECIFICATIONS OF ELECTRICAL PARTS 18 7 REFRIGERANT CYCLE DIAGRAM 19 8 CONTROL BLOCK DIAGRAM 21 9 OPERATION DESCRIPTION 23 10 INSTALLATION PROCEDURE 45 11 HOW TO DIAGNOSE THE TROUBLE 60 12 HOW TO REPLACE THE MAIN PARTS 86 13 EXPLODED VIEWS AND PARTS LIST 99 FILE NO SVM 17030 2 ...

Page 3: ...the sizes of charging port connecting sections on the main unit are different from those for the conventional refrigerant and different size tools are also required For connecting pipes use new and clean piping materials with high pressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand ma...

Page 4: ...ccordance with national wiring regulations If you detect any damage do not install the unit Contact your dealer immediately Do not use any refrigerant different from the one specifi ed for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body CAUTION Exposure of uni...

Page 5: ...pth mm 230 230 Net weight kg 9 9 Fan motor output W 25 25 Air flow rate Cooling Heating m3 min 9 0 9 2 10 0 10 3 Outdoor unit Unit model RAS 10BAV E1 RAS 13BAV E1 Dimension Height mm 530 530 Width mm 660 660 Depth mm 240 240 Net weight kg 22 23 Compressor Motor output W 682 682 Type Model ASK89D53UEZ Fan motor output W 43 Air flow rate Cooling Heating m3 min 32 32 33 33 Piping Type Flare connectio...

Page 6: ...gh Pipe Length 5m Voltage 230V RAS 13BKV E1 RAS 10BKV E1 0 0 20 0 40 0 60 0 80 0 100 0 120 0 15 10 5 10 Heating Capacity ratio 5 0 Outside Temperature ºC RAS 10BKV E1 RAS 13BKV E1 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 105 0 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 RAS 10BKV E1 RAS 13BKV E1 Cooling Capacity ratio Outside Temperature oC Conditions Indoor DB 27oC WB 19oC Outdoor...

Page 7: ... the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a larg...

Page 8: ... joints Nominal diameter 1 4 3 8 1 2 5 8 Reference outer diameter of copper pipe jointed mm 6 35 9 52 12 70 15 88 Minimum joint thickness mm 0 50 0 60 0 70 0 80 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air w...

Page 9: ...o 0 5 0 to 0 5 0 to 0 5 0 to 0 5 Conventional flare tool Clutch type Wing nut type 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R22 clutch type 0 to 0 5 0 to 0 5 0 to 0 5 0 to ...

Page 10: ...que for R410A is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufactur...

Page 11: ... charging Refrigerant cylinder Leakage detector Charging cylinder Usage Pipe flaring Flaring by conventional flare tool Connection of flare nut Evacuating refrigerant charge run check etc Vacuum evacuating Refrigerant charge Refrigerant charge Gas leakage check Refrigerant charge R410A air water heat pump installation Existence of new equipment for R410A Yes Yes Yes Yes Yes Yes Yes Yes Note 2 Whet...

Page 12: ...e connecting port of the electronic balance and charge liquid refrigerant Indoor unit Outdoor unit Opened Opened Refrigerant cylinder with siphon Check valve Open close valve for charging Electronic balance for refrigerant charging Opened Closed Service port 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the fo...

Page 13: ...is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhesive strength do not use it for re...

Page 14: ...ux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe i...

Page 15: ...ation plate hanger 131 131 140 131 120 24 Installation plate hanger Drain hose 0 4m Installation plate hanger Connecting pipe 0 35m Flare 9 52mm Connecting pipe 0 40m Flare 6 35mm 510 40 298 94 94 135 170 170 135 40 144 144 170 170 192 192 Installation plate outline Center line Hanger Hanger Hanger Outline of indoor unit 65 65 64 5 73 5 110 58 17 5 Wireless remote controller 25 Remote controller h...

Page 16: ...4 2 Outdoor Unit Unit mm C L C L 280 400 FILE NO SVM 17030 16 ...

Page 17: ...5 WIRING DIAGRAM FILE NO SVM 17030 17 ...

Page 18: ...ns 1 Compressor ASK89D53UEZ 3 Phases 6 Poles 682W 2 Fan Motor ICF 140 43 4R DC 140 340V 43W 3 Pulse Modulating Valve PMV coil PQ M10012 000313 DC 12V 4 4 Way Valve coil DXQ 939 AC 220 240V 5 Suction temp sensor TS sensor Inverter attached 6 Discharge temp sensor TD sensor Inverter attached 7 Outside air temp sensor TO sensor Inverter attached 8 Heat Exchanger temp sensor TE sensor Inverter attache...

Page 19: ...hanger Cross flow fan Deoxidized copper pipe Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length Pressure measurem P Pulse Modulating valve at liquid side TD 4 way valve Compressor ASK89D53UEZ TS T2 Outdoor heat exchanger Temp measurement Propeller fan 10k Refrigerant amount 0 52kg 13k Refrigerant amount 0 58kg OUTDOOR UNIT Muffl...

Page 20: ...oor Outdoor P MPa T1 C T2 C rps 27 19 35 10BKV E1 0 8 to 1 0 11 to 12 52 to 53 High High 58 13BKV E1 0 7 to 0 9 11 to 12 49 to 50 High High 80 condition C Tempeature Heat exchanger pipe temp Model name Standard Indoor Outdoor Compressor RAS pressure fan mode fan mode revolution Indoor Outdoor P MPa T1 C T2 C rps 20 7 6 2 5 to 2 7 42 to 43 0 to 1 High High 68 2 6 to 2 7 43 to 44 0 to 1 High High 73...

Page 21: ...l Processing Temperature Processing Timer LED brightness dim Serial Signal Communication Functions M C U Indoor Unit Control Panel Power Supply Remote Control Heat Exchanger Sensor Temperature Sensor Infrared Rays Signal Receiver Infrared Rays Initiallizing Circuit Clock Frequency Oscillator Circuit Louver Motor 36 7KHz Power Supply Circuit Noise Filter Indoor Fan Motor Timer Display Operation Dis...

Page 22: ...nt Detector PWM synthesis function Input current release control IPM over current detect control Outdoor fan control High power factor correction control Inverter output frequency control A D converter function P M V control Discharge temp control 4 way valve control Signal communication to indoor unit P M V Pulse Motor Valve M C U Micro Control Unit M C U For INDOOR UNIT 4 way valve P M V Inverte...

Page 23: ... to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether ...

Page 24: ...adjustment 33 3 Swing 33 9 ECO operation 34 10 Temporary operation 35 11 12 Discharge temperature control 35 13 Pulse Modulating valve P M V control 36 Self Cleaning function 37 14 Remote A or B selection 39 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 41 9 3 2 How to Cancel the Auto Restart Function 42 9 3 3 Power Failure During Timer Operation 42 9 4 Remote Controller and...

Page 25: ...te controller ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Temperature setup Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO ON timer setup OFF timer setup Hi POWER Indoor unit control Command signal generating function of indoor unit operation Calculation function temperature calculation Activation compensation function of indoor fan Cold draft preve...

Page 26: ...operation mode the fan speed is controlled by the previous operation mode 4 DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons 1 Detects the room temperature Ta when t...

Page 27: ...g 2 Table 1 Indoor fan air flow rate 2 5 Ta C 2 0 1 5 1 0 0 5 Tsc a b c d e M WC 3 4 5 L W7 Air volume AUTO L L M M H W7 L M 2 WA M H 2 WD Indication Fan speed Fan speed setup COOL ON AUTO MANUAL 3 Fan speed M L x 3 4 L 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L Fan speed level Cooling Heating Cooling Heating Cool Heat Dry Fan speed Air flow rate Fan speed Ai...

Page 28: ...34 45 45 33 33 33 21 32 32 20 A 4 A 4 A 4 A 4 A 4 A 4 Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting L L M M H W8 L M 2 WB M H 2 WE Indication Fan speed Fan speed setup HEAT ON AUTO YES NO MANUAL TC 42 C Min air flow rate control Tc 52 51 42 41 Limited to Min WD tap Fan speed TC W8 W8 No limit FAN AUTO FAN Manual In starting Until 12 minutes passed after operat...

Page 29: ... the table is selected 2 Fan speed 400 when the motor stopped Air conditioner ON Remote controller YES YES NO NO Indoor unit controller Fan motor ON 3 Fan lock OFF status of fan motor continues 4 Motor operates as shown in the table below 1 Outdoor unit operation command Outdoor fan control Air conditioner OFF Alarm display Outdoor fan speed rpm Compressor speed rps To 38 C To 28 C To To 15 C To 5...

Page 30: ...of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value 5 Current release control Set temp Ts Room temp Ta Correction of Hz signal Outdoor temp To Setup of current release point Capacity control continues Detection of electromotive force of compressor motor winding Detection of motor speed and rotor position Inverter output change Commutat...

Page 31: ...ssor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 48 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 52 C or when it drops below to 48 C the capacity control operation return...

Page 32: ...r 40 seconds 2 Invert OFF 4 way valve 40 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan Finish of defrost operation Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher for 3 sec...

Page 33: ...puter The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation mode COOL HEAT and the louver returns to the stored position when the next operation is performed Cooling Heating memory position The louver position can be arbitrarily set up by pressing FIX button Swing operation is perfor in range 35 with the Fixed position as the center If the swin...

Page 34: ... minutes A B C A B C Time Compressor speed 0Hz A zone aHz B zone a to cHz C zone cHz 0 0 5 1 0 1 5 2 0 2 5 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 Room temp Set temp 3 5 3 0 2 5 1 5 1 0 TSC 1 0 2 0 5 5 1H 2H 11 10 7 6 5 4 3 2 1 OFF Dry Max 12 11 9 8 10 TA 6 0 6 5 3H 4H 5 0 4 5 4 0 2 0 0 5 0 5 12 9 8 Time Zone Frequency FAN Min Hz Fan speed depend on presetting and can change every speed 1 The contro...

Page 35: ... 3 seconds or more Did you press RESET button for 10 seconds or more Switch to AUTO RESTART control YES NO NO YES Temporary AUTO operation Temporary COOL Operation 11 Discharge temperature control 1 Purpose This function detects error on the refrigerating cycle or error on the com pressor and performs protective control 2 Operation Control of the compressor speed The speed control is performed as ...

Page 36: ... the range of set tempera ture Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during preparation for defrost and during defrost operation 4 way valve is inversed 5 To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller adjust the open degree of valve to th...

Page 37: ...eration performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating Unit now performing cooling or dry operation Press STOP button Only timer indicator lights and Self Cleaning operation starts Time set now elapses Operation stops function During Self Cleaning operations The louver opens slightly The ind...

Page 38: ...ning flash 1 Hz function Timer LED Flash 1 Hz OFF flash 1 Hz not flash ON OFF ON OFF Setting diagnosis code 06 on remote controlle See detail of setting diagnosis code in 11 4 1 Turn on air conditioner again by remote controller to confirm setting Note Table above will show current status of Self Cleaning function Set or Cancel Self Cleaning function by push the RESET button on air conditioner Whe...

Page 39: ...n the Remote Control by the tip of the pencil 00 will be shown the air conditioner ON shown on the display 4 Press MODE during pushing CHK B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from facto...

Page 40: ... in real condition Operation Factory default setting prefer Heat pump system Through it is able to cooling only system heating only system or return to factory default Operating system setting Do cut J804 for cooling only system Do cut J805 for heating only system Do cut both of J804 and J805 for return to factory default FILE NO SVM 17030 40 ...

Page 41: ... 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 9 3 1 How to ...

Page 42: ...e at this time press RESET button once more or use the remote controller to turn it on 9 3 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 system is on sta...

Page 43: ... HEATING FAN ONLY OPERATION To automatically select cooling or fan only operation 1 Press Select Cool Heat or Fan only 2 Press Set the desired temperature Cooling Heating Min 17 C Max 30 C Fan Only No temperature indication 3 Press Select AUTO LOW LOW MED MED or HIGH MODE MODE FAN 2 Press Set the desired temperature 3 DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance i...

Page 44: ...dicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position Press swing button to start the swing operation and press it again to stop the swing operation 9 Swing 5 OFF TIMER indicator Indicates when the OFF timer is setting press the OFF timer button and se...

Page 45: ...drain hose sloped downward Do not allow the drain hose to get slack Cut the piping hole sloped slightly The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Right Rear right Bottom right Rear left Bottom left Left 6 mm thick heat resisting polyethylene foam 1 Batteries Flat head wood screw Remote control holder Vinyl tape Apply after carrying out...

Page 46: ... 7 to the bottom plate of the outdoor unit before installing it 10 2 1 Optional installation parts 10 2 Installation Fixing bolt arrangement of outdoor unit Drain outlet Air inlet Air outlet 280 mm 500 mm 53 mm 97 mm Ø25 mm Part Code A B C Parts name Refrigerant piping Liquid side 6 35 mm Gas side 9 52 mm Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes Q ty One each 1 One eac...

Page 47: ...te control holder x 1 Part No 4 5 6 Part No 7 Others Name Owner s manual Installation manual Part name Q ty 10 2 2 Accessory and installation parts The part marked with asterisk is packaged with the outdoor unit Mounting screw 4 x 25 s x 6 Flat head wood screw 3 1 x 16 s x 2 Drain nipple x 1 FILE NO SVM 17030 47 ...

Page 48: ...ze have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 By incr...

Page 49: ...hole and mounting installation Cutting a hole When installing the refrigerant pipes from the rear 1 After determining the pipe hole position on the mounting plate A drill the pipe hole 65 mm at a slight downward slant to the outdoor side NOTE When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate...

Page 50: ...hose installation Piping and Drain Hose Forming Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material Fig 10 3 6 Fig 10 3 7 How to remove the drain hose Fig 10 3 8 The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose When removing the drain hose be careful of ...

Page 51: ...ide Outward form of indoor unit R 30 mm Use polisin polyethylene core or the like for bending pipe Liquid side CAUTION Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Carefu...

Page 52: ...TE Hole should be made at a slight downward slant on the outdoor side Fig 10 3 16 2 Put water in the drain pan and make sure that the water is drained out of doors 3 When connecting extension drain hose insulate the connecting part of extension drain hose with shield pipe Fig 10 3 17 CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping This ...

Page 53: ...o not use the supplied drain nipple for draining water Drain the water from all the drain holes directly hood and plate Do not use a double stacked design To protect the outdoor unit from snow accumulation install a holding frame and attach a snow protection Snow protection plate Snow protection hood At least 50 cm Snow accumulation line Holding frame Front Anchor bolts Install at least 50 cm abov...

Page 54: ...art evacuating Perform evacuating for about 15 minutes if the piping length 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 side of Gas and Liquid 7 Remove the charging hose...

Page 55: ...ce Port Cap H17 H19 H22 H30 H14 H17 14 18 N m 1 4 to 1 8 kgf m 33 42 N m 3 3 to 4 2 kgf m 8 12 N m 0 8 to 1 2 kgf m 14 18 N m 1 4 to 1 8 kgf m A H Hexagon wrench is required Service Port Cap Valve Rod Cap CAUTION KEEP IMPORTANT 5 POINTS FOR PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight connection between pipes and unit 3 Evacuate the air in the connecting pipes u...

Page 56: ...tly with screws 6 Tightening torque 1 2 N m 0 12 kgf m 7 Secure the connecting cable with the cord clamp 8 Fix the terminal cover and air inlet grille on the indoor unit Cord clamp Terminal cover Screw Screws Air inlet grille Front panel Valve cover Terminals block 1 Remove the valve cover the electric parts cover and the cord clamp from the outdoor unit 2 Connect the connecting cable to the termi...

Page 57: ...ble Connecting cable Stripping length of the connecting cable 3 2 L Earth line 50 mm 10 mm 70 mm 10 mm Connecting cable Earth line Earth line Connecting cable Power cord Terminal block Power cord 1 The power supply must be same as the rated of air conditioner 2 Prepare the power source for exclusive use with air conditioner 3 Circuit breaker must be used for the power supply line of this air condi...

Page 58: ...Outdoor Terminal Block INDOOR UNIT OUTDOOR UNIT CHASSIS CHASSIS EARTH Power supply input at Outdoor unit Terminal Block Optional Indoor Terminal Block Power supply input Outdoor Terminal Block INDOOR UNIT OUTDOOR UNIT CHASSIS CHASSIS EARTH 10 5 3 Power supply input wiring diagram FILE NO SVM 17030 58 ...

Page 59: ... the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B NOTE 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from factory is A 10 6 2 Remote Control A B Selection is memorized Picture Picture 1 2 10 6 3 Test operation To switch the TEST RUN COOL mode press RESET button for 10 sec The ...

Page 60: ...ce as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter will be incorporated starting with this unit K The control circuitry has an uninsulated construction No 1 2 3 4 5 Troubleshooting Procedure First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self Diagnosis by Remote Controller Judgment of Trouble by Every Symptom No 6...

Page 61: ...lt in damage to the components Do NOT lay the circuit board assembly flat K Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if...

Page 62: ...creasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after In AUTO mode the operation mode is changed In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature Description The OPERATION lamp of the indoor unit fl...

Page 63: ...a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing OPERATION Flashing display 1 Hz OPERATION TIMER Flashing display 5 Hz OPERATION Flashing display 5 Hz OPERATION TIMER White Flashing display 5 Hz OPERATION Flashing display 5 Hz Protective circuit operation for indoor P C board Protective circuit op...

Page 64: ... button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes to as shown in Table 11 4 1 Press TEMP or TEMP button to change the check code backward If there is a fault the indoor unit will beep for 10 s...

Page 65: ...oom Operation Flashes when 1 Check the sensor TA and connection board temperature sensor is continues error is detected 2 In case of the sensor and its short Circuit or disconnection connection is normal check the P C board TC sensor The heat Operation Flashes when 1 Check the sensor TC and connection exchanger temperature continues error is detected 2 In case of the sensor and its sensor of the i...

Page 66: ...or unit open 4 The outdoor unit abnormal stop at circuit of signal some time Signal circuit of indoor If the other check codes are found P C board or outdoor concurrently check them together P C board is failure Check protector hardware such in some period as Hi Pressure switch Thermal Relay etc Check refrigerant amount or any possibility case which may caused high temperature or high pressure Che...

Page 67: ...resistance of compressor winding If circuit is shortage replace the compressor Current detect circuit of All OFF Flashes after Even if trying to operate again all inverter P C board error error is detected operations stop replace inverter 4 times P C board TE sensor The heat All OFF Flashes after 1 Check sensors TE TS and connection exchanger temperature error is detected 2 In case of the sensors ...

Page 68: ...rror count comes 4 or 8 times record error to check code But after re starting operation if no error is detected and air conditioner can operate more than 6 minutes error count is cleared The others Return signal of the outdoor Indoor unit Flashes when 1 Check power supply Rate 10 including unit has been sent when operates error is detected 2 If the air conditioner repeat operates compressor opera...

Page 69: ...Flashes after 1 Check sensors TD exceeded 117o C error is detected 2 Check refrigerant amount 4 times 3 Check P M V by measure the resistance of the coil and confirm its operation sound of initial operation etc 4 Observe any possibility cause which may affect high temperature of compressor Compressor is high current All OFF Flashes after 1 Check installation conditions such as though operation Hz ...

Page 70: ... the indo unit by using diode Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board 4 Check and clean heat exchanger area Indoor and Outdoor unit Instantaneous power failure Some protector hardware of the outdoor unit open circuit of signal Signal cir...

Page 71: ...O YES NO NO YES YES Is it possible to turn on power supply by pressing button on remote control Does transmission mark on remote control flash normally and is its signal transmitted properly Remote control is defective Refer to 4 Remote Control Is fuse F01 of indoor control board blown Is voltage DC 12V or 5V indicated on rear of indoor control board normal Microcomputer is defective Replace main ...

Page 72: ...laced Confirmation procedure YES YES NO NO Turn on power supply Does operation lamp flash 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 FILE NO SVM 17030 72 ...

Page 73: ...e Change the setting of cooling to high fan Operation stops Shut off the power supply Motor control circuit failure IC03 Q39 and D01 or 12 V Switching power supply failure Does the cross flow fan rotate normally Is the rotation signal DC 5 V 0 V output between 2 gray lead wire and 3 brown lead wire of the motor connector CN11 when rotating the cross flow fan by hand in no operating status 1 pulse ...

Page 74: ...hin test rod of Judgment of Trouble by Every Symptom SJM 240 25 Do not disconnect the connector while the fan motor is rotating For P C board side proceed to the item Only indoor fan does not operate 1 3 5 1 2 3 2 1 3 2 1 3 CN10 CN11 P C board WHI BLK RED BRW GRY YEL Resistance value Position P C board Between 3 Black 1 Red Between 3 Black 5 White Between 1 Red 5 White 120 6 8 4 Ω 244 2 17 Ω 364 8...

Page 75: ... a transistor radio 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 Replace the batteries Dose the transmission indicator light Is there any beep and operation Normal Remote control is failure Replace remote control Push the but...

Page 76: ...nsmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 7 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operat...

Page 77: ...s if pressure is low Is connecter of coil connected to inverter Is coil of the pulse motor valve P M V correctly set Existence of condensation at outlet of P M V If there is condensation at outlet 1 4 inch Ø6 35mm valve side the valve is clogged Are temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indo...

Page 78: ...R or S Summary If fuse was blown be sure to check the electrolytic capacitor and diode block DB01 Connect discharge resistance approx 100Ω 40W or soldering iron plug between terminals of the electro lytic capacitor 760µF of C07 with printed WARNING ELECTRIC SHOCK on P C board OK if 760µF DC290 to 400V Remove CN31 while pushing the part indicated by an by an arrow because CN31 is a connector with l...

Page 79: ...w to Check the P C Board Indoor Unit 1 Operating precautions 1 When removing the front panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 Whe...

Page 80: ...ION TIMER are lit for 3 seconds and they return to normal 3 seconds later 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes 1 Check it is impossible to detect the voltage AC120V or higher voltage between red and black 2 The motor does not operate...

Page 81: ...emperature C TA TC TO TS TE TD 1 Sensor characteristic table 11 8 2 P C Board Layout TD Discharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TS Suction temp sensor TE Outdoor heat exchanger temp sensor GND 12V 5V FILE NO SVM 17030 81 ...

Page 82: ... Checking procedure White Red Back Measure the resistance value of each winding by using the tester Measure the resistance value of winding by using the tester Red White Black Measure the resistance value of winding by using the tester Resistance value 1450 150Ω Under 20 C Measure the resistance value of winding by using the tester COM COM 2 5 4 Y W GR BL 1 GR 6 O 3 Position Gray White Gray Orange...

Page 83: ...ication characteristics are shown in continuity test by the tester 11 8 5 Checking Method for Each Part Case that product is good Pointer swings once and returns slowly When performing test once again under another polarity the pointer should return No Part name Checking procedure 5 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS exchanger temperature se...

Page 84: ... the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor If the resistance value between 1 Red lead...

Page 85: ... flash 1 Hz function Timer LED Flash 1 Hz OFF flash 1 Hz not flash ON OFF ON OFF Turn on air conditioner again by remote controller to confirm setting Note Table above will show current status of Self Cleaning function Set or Cancel Self Cleaning function by push the RESET button on air conditioner When setting is changed the sound warning will alarm Beep The setting is changed following below Set...

Page 86: ...the room is not properly ventilated 3 Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage cir...

Page 87: ...upper part of the front panel toward you to remove it as shown on figure 3 4 1 Follow the procedure item 3 2 Remove screw holding the electric part cover 3 Disconnect the connectors for the fan motor and louver motor from P C board assembly 4 Remove the earth screw and earth line from evaporator 5 Pull out TC sensor from sensor holder of the evaporator 6 Remove the 2 fixing screws that secures the...

Page 88: ... the motor band and the fan motor outward 3 5 mm Cross flow fan Set screw Fan motor Body back Horizontal louver 6 1 Remove shaft of the horizontal louver from the back body First remove 2 the center shafts then remove the other shafts Horizontal louver Drain pan For SJM 240 25 4 5 Fan motor wires Fan motor connector To re installation Check the type name of fan motor Keep connector position and ar...

Page 89: ...screws of the unit display and remove unit display 7 5 Remove the drain pan from the back body Electric part cover Screw Connectors Louver motor connector P C board To re installation Press the drain pan into the back body Please make sure ribs of drain pan in left and right side must be install to lock position Press the center arm of drain pan to back body Center arm of drain pan Back body Drain...

Page 90: ...g figure Install the cross flow fan so that the right end of the 1st joint from the right of the Cross flow fan is keep 3 5mm from closed wall of the main unit Holding the set screw install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw 4 Lift up the heat exchanger follow the figure Pull out the left hand side until the cross flow fan is ...

Page 91: ...e right hand side until the locking slot of heat exchanger is released from the hook of the motor cover then pull out the upper side of heat exchanger To re installation Put the evaporator hins seal on the body back before assembly the heat exchanger Please keep assembly heat exchanger follow figure as below Cross flow fan Heat exchanger Evaporator hins seal Please make sure that the hook of motor...

Page 92: ...power supply off to stop the operation of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base Remarks Replace terminal block microcomputer ass y and the P C board ass y Microcomputer FILE NO SVM 17030 92 ...

Page 93: ...nnecting cable attach the cord clamp and wiring cover Put the wiring cover into the front cabinet and insert the claw which has been hooked to the lower part into the square hole and then fix it with screw ST2T 4 x 10s 2 pc 3 Attach the valve cover ST2T 4 x 10s 1 pc Insert the upper part to the front cabinet set the hook claw of the valve cover to square holes at three positions of the main unit a...

Page 94: ...trouble type in some cases NOTE This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between Requirement As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but by holding the connector The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove t...

Page 95: ...and pinch the lead wires using the closed end splice Fan motor Compressor 1 0 0 Fan motor Propeller fan Flange nut Closed end splice 1 Perform work of item 1 of 1 1 of 2 and ƒ 2 Extract refrigerant gas 3 Remove the partition board ST2T 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 com...

Page 96: ...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 Fan guard Minus screwdriver Hooking claw 6 Pulse Modulating Valve coil 7 1 Detachment 2 Attachment 1 Insert the coil at position which perpendicular with pipe of PMV then tu...

Page 97: ...ect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the spacer Remove the heat sink and control board assembly while keeping them screwed together 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly NOTE When mounting the new contro...

Page 98: ...Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again Remarks 1 2 3 4 5 6 Parts name Sensor Sensor Spring A Sensor Spring B Thermal constringent tube Color tape Terminal Q ty 1 1 1 3 1 3 Cutting here Cutting here Cutting here Soldered part Dryer Winding the color tape 100 200 Connector Thermal sensor part Thermal c...

Page 99: ... ASSY AIR FILTER BACK BODY ASSY VERTICAL LOUVER ASSY DRAIN PAN ASSY HORIZONTAL LOUVER DRAIN HOSE DRAIN CAP STEPPING MOTOR MOTOR FAN CROSS FLOW FAN ASSY BASE BEARING BEARING ASSY MOLD MOTOR COVER MOTOR BAND BACK 229 43T91307 MOTOR BAND FRONT REFRIGERATION CYCLE ASSY RAS 10BKV E1 REFRIGERATION CYCLE ASSY RAS 13BKV E1 EVAPORATOR HINS SEAL HOLDER SENSOR PIPE SHIELD INSTALLATION PLATE PIPE HOLDER TERMI...

Page 100: ...401 43T69319 405 43T6V681 402 43T6V673 406 43T6V913 403 43T6V674 406 43T6V914 PC BOARD ASSY WRS LED PC BOARD RAS 10BKV E1 PC BOARD RAS 13BKV E1 404 43T62340 TEMPERATURE SENSOR TERMINAL 5P TF TEMPERATURE SENSOR CORD CLAMP Description Description FILE NO SVM 17030 100 ...

Page 101: ...69 52 43T91301 17 43T63360 53 43T91303 PACKED VALVE COVER UPPER CABINET ASSEMBLY FIXING PLATE VALVE BASE PLATE ASSEMBLY DRAIN NIPPLE 4 WAY VALVE 4 WAY VALVE COIL PARTITION ASSEMBLY MOTOR BASE MOTOR BASE CONNECTION PLATE CARTON BOX CUSHION PKG UPR PE SHEET ASM FBBRD UD 18 43T41524 FAN GUARD PROPELLER FAN FRONT CABINET ASSEMBLY CONDENSER ASSEMBLY TERMINAL COVER VALVE PACKED 9 52 DIA BONNET 9 52 DIA ...

Page 102: ...69 52 43T91301 17 43T63360 53 43T91303 PACKED VALVE COVER UPPER CABINET ASSEMBLY FIXING PLATE VALVE BASE PLATE ASSEMBLY DRAIN NIPPLE 4 WAY VALVE 4 WAY VALVE COIL PARTITION ASSEMBLY MOTOR BASE MOTOR BASE CONNECTION PLATE CARTON BOX CUSHION PKG UPR PE SHEET ASM FBBRD UD 18 43T41524 FAN GUARD PROPELLER FAN FRONT CABINET ASSEMBLY CONDENSER ASSEMBLY TERMINAL COVER VALVE PACKED 9 52 DIA BONNET 9 52 DIA ...

Page 103: ...ation Part Location Part No No No No 701 43T67306 704 43T60459 702 43T6V909 705 43T60465 702 43T6V910 706 43T50304 703 43T60392 HEATSINK PC BOARD RAS 10BAV E1 PC BOARD RAS 13BAV E1 TERMINAL 5P 707 43T95304 FUSE TEMPERATURE SENSOR SENSOR HEAT EXCHANGER SPACER KGES Description Description FILE NO SVM 17030 103 ...

Page 104: ...TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...