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FILE NO. SVM-10017

11. HOW TO DIAGNOSE THE TROUBLE

The pulse modulating circuits are mounted to both
indoor and outdoor units. Therefore, diagnose troubles
according to the diagnosis procedure as described
below. (Refer to the check points in servicing written on
the wiring diagrams attached to the indoor/outdoor
units.)

No. Troubleshooting Procedure

1 First Confirmation

2 Primary Judgement

3 Judgement by Flashing LED

of Indoor Unit

4 Self-Diagnosis by Remote Controller

5 Judgement of Trouble by

Every Symptom

6 Check Code 1C (Miswiring in indoor/

Fig. 11-1

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 DC280V)
remains and discharging takes a lot of time. After
turning off the power source, if touching the charging
section before discharging, an electrical shock may be
caused. Discharge the electrolytic capacitor completely
by using soldering iron, etc.

<Discharging method>
(1) Remove the inverter cover (plating) by opening

four mounting claws.

(2) As shown below, connect the discharge resistance

(approx. 100

Ω

40W) or plug of the soldering iron to

voltage b – terminals of the C12
(“CAUTION HIGH VOLTAGE” is indicated.)
electrolytic capacitor (500

µ

F/400V) on P.C. board,

and then perform discharging.

PC board
(Soldered surface)

Inverter cover

Discharging position
(Discharging period
10 seconds or more)

Plug of
soldering
iron

outdoor units) and 1E

7 How to Diagnose Trouble in

8 How to Check Simply the Main Parts

9 How to Simply Judge Whether outdoor

Table 11-1

Outdoor Unit

Fan Motor is Good or Bad

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Содержание RAS-107SAV-E

Страница 1: ...R410A SERVICE MANUAL SPLIT TYPE Indoor Unit Outdoor Unit High Wall Heat PumpType Heat PumpType RAS 107SKV E3 RAS 107SAV E3 Feburary 2010 FILE NO SVM 10017 ...

Страница 2: ...4 5 WIRING DIAGRAM 16 6 SPECIFICATIONS OF ELECTRICAL PARTS 18 7 REFRIGERANT CYCLE DIAGRAM 20 8 CONTROL BLOCK DIAGRAM 22 9 OPERATION DESCRIPTION 24 10 INSTALLATION PROCEDURE 44 11 HOW TO DIAGNOSE THE TROUBLE 57 12 HOW TO REPLACE THE MAIN PARTS 73 13 EXPLODED VIEWS AND PARTS LIST 81 FILE NO SVM 10017 ...

Страница 3: ...nd installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fit...

Страница 4: ...ed electrician in accordance with the Installation Manual Make sure the air conditioner uses an exclusive circuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground wires to...

Страница 5: ...S 107SKV E3 Dimention Height mm 250 Width mm 740 Depth mm 195 Net weigh kg 8 Fan motor output W 20 Air flow rate Cooling Heating m3 min 8 7 9 6 Outdoor unit Unit model RAS 107SAV E3 Dimention Height mm 530 Width mm 660 Depth mm 240 Net weigh kg 29 Compressor Motor output W 750 Type Single rotary type with DC inverter variable speed control Model DA89X1C 23EZ Fan motor output W 20 Air flow rate Coo...

Страница 6: ...B 24 C Air Flow High Pip Length 5m Voltage 230V Conditions Indoor DB 20 C WB 15 C Outdoor DB 7 C WB 6 C Air Flow High Pip Length 5m Voltage 230V 50 55 60 65 70 75 80 85 90 95 100 105 32 33 34 35 36 37 38 39 40 41 42 43 Cooling Capacity ratio Outside Temperature o C 0 20 40 60 80 100 120 10 5 0 5 10 Heating Capacity ratio Outside Temperature ºC Conditions Indoor DB 27 C WB 19 C Indoor Air Flow High...

Страница 7: ... in 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 l...

Страница 8: ...et 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...

Страница 9: ... to 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 t...

Страница 10: ...torque 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 manufac...

Страница 11: ...ant 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 W...

Страница 12: ...d the 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 th...

Страница 13: ... of silver and copper It 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 stre...

Страница 14: ... flux 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 pip...

Страница 15: ...lare 6 35 Connecting pipe 0 37m Hanger 135 500 105 290 45 165 38 40 90 135 235 250 For stud bold 6 For stud bold 8 10 Center line Installation plate outline Hanger Hanger Hanger 605 215 235 215 145 145 26 45 90 135 Knock out system 250 60 58 740 8 8 52 195 Knock out system 14 FILE NO SVM 10017 26 Remote controller holder 63 125 Wireless remote controller 56 19 157 ...

Страница 16: ...FILE NO SVM 10017 15 4 2 Outdoor Unit C L C L 280 400 ...

Страница 17: ... 16 FILE NO SVM 10017 5 WIRING DIAGRAM 5 1 Indoor Unit ...

Страница 18: ...FILE NO SVM 10017 17 5 2 Outdoor Unit ...

Страница 19: ...H 15A Noise filter L03 GET 04052 10A 2mH Primary side DC280V Secondary 2 DC DC transformer SWT 72 side 7 0 V x 1 12 V x 1 17V x 2 3 Reactor CH 69 Z T L 19mH 10A 4 Outside fan motor WLF 240 20A 1 20W 5 G5NB 1A CA Coil DC12V Contact 3A 125VAC 6 Outside air temp Inverter attached 10kΩ 25 C sensor TO sensor 8 JX0 5B 20A AC250V Terminal block 5P 9 11 Fuse For protection of switching power source 3 15A ...

Страница 20: ...xchanger 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 P Pressure measurement Gauge attaching port Vacuum pump connecting port TD 4 way valve STF 0108Z Compressor DA89X1C 23EZ T2 Outdoor heat exchanger Temp measurement Propeller fan Refrigerant amount 0 63kg OUTDOOR UNIT Muffler Muffler...

Страница 21: ...0 9 to 1 1 9 to 11 47 to 49 High High 54 Heating Tempeature Standard Heat exchanger Indoor Outdoor Compressor condition C pressure pipe temp fan mode fan mode revolution Indoor Outdoor P MPa T1 C T2 C rps 20 7 6 2 4 to 2 6 43 to 45 0 to 3 High High 68 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping cond...

Страница 22: ...or Compressor Motor Revolution Control Timer Serial Signal Communication Processing Temperature Processing Functions M C U Indoor Unit Control Panel From Outdoor Unit 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 Time...

Страница 23: ... Fan motor 4way Valve Relay High power factor correction circuit 1 PWM synthesis function 2 Input current release control 3 IGBT over current detect control 4 Outdoor fan control 5 High power factor correction control 6 Signal communication to indoor unit M C U M C U Inverter DC AC Compressor Discharge temp sensor Outdoor air temp sensor Heat Exchanger temp sensor MICRO COMPUTER BLOCK DIAGRAM 220 ...

Страница 24: ...f error Air purifier operation control 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control 4 way valve control of serial signal from indoor side Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT mo...

Страница 25: ...33 2 Air direction adjustment 33 3 Swing 33 8 ECO operation 34 9 Temporary operation 35 10 35 Discharge temperature control 11 Self Cleaning function 36 12 13 Remote A or B selection 38 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 39 9 3 2 How to Cancel the Auto Restart Function 40 9 3 3 Power Failure During Timer Operation 40 9 4 Remote Controller and Its Fuctions 9 4 1 Pa...

Страница 26: ...ontents of remote controller ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Temperature setup Air direction Swing Air volume select AUTO LOW MED HIGH ECO ON timer setup OFF timer setup Indoor unit control Command signal generating function of indoor unit operation Calculation function temperature calculation Activation compensation function of indoor fan Cold draft prevent...

Страница 27: ...peed 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 the DRY operation started...

Страница 28: ...e constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature Fig 1 Fig 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 WB 3 4 5 L W6 Air volume AUTO Fan speed setu...

Страница 29: ... g 5 0 5 5 L W9 M WD 1 2 3 H WE H WE Line approximate H and SUL with Tc SUL W2 Stop 46 46 Tc 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 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 ÐW8 W8 TC 42 a 10 x WD W8 W8 a In up operatio...

Страница 30: ...rive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value 4 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 motor speed and rotor position Inverter output change Commutation timing change Change of compressor speed Rem...

Страница 31: ...pressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 46 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 50 C or when it drops below to 46 C the capacity control operation ret...

Страница 32: ... 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 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning from defrost operation 1 Stop operation of the compressor for approx 50 seconds 2 ...

Страница 33: ...r lower limit position swing operation is performed in width 35 from the limit which the stop position exceeded 3 Swing 2 Louver position in heating operation 2 Air direction adjustment The position is automatically controlled according to the operation The set louver position is stored in memory by the microcomputer The angle of the louver is indicated as the louver closes fully is 0 1 Louver pos...

Страница 34: ...min 9 DRY max COOL min 6 x 2 COOL min 8 DRY max COOL min 6 x 1 COOL min 30 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 Min Hz ...

Страница 35: ...ter lamp ON Press RESET button Did you press RESET button for 3 seconds or more Did you press RESET button for 10 seconds or more Switch to AUTO RESTART control YES YES NO NO NO YES Temporary AUTO operation Temporary COOL Operation FILE NO SVM 10017 10 Discharge temperature control 1 Purpose This function detects error on the refrigerating cycle or error on the com pressor and performs protective ...

Страница 36: ... operation 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 ...

Страница 37: ...s this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating 3 Operation The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting di...

Страница 38: ...the preset temperature on the 4 The Hi POWER mode can not be set in Dry operation 13 COMFORT The principles of comfort sleep mode are Quietness for more comfortable When Save energy by changing room temperature The air condition can shut down by itself Remarks Comfort sleep mode will not operate in dry automatically mode and fan only mode automatically room temperature reach setting temperature Th...

Страница 39: ... 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...

Страница 40: ...red to operate 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 sys...

Страница 41: ...ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Pre...

Страница 42: ...remote control Pressing the RESET button the unit can start or stop without using the remote control Operation mode is set on AUTOMATIC operation preset temperature is 24 C and fan operation is automatic speed 8 TIMER OPERATION Setting the ON Timer Setting the OFF Timer Press ON Set the desired ON timer Press OFF Set the desired OFF timer Press SET Set the timer Press SET Set the timer Press CLR C...

Страница 43: ...e indoor unit for 3 seconds to cancel the Setting operation 3 beep sound but OPERATION lamp does not blink 11 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press QUIET Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling or heating due to low sound features 12 COMFORT SLEEP OPERATION To save energy wh...

Страница 44: ...utton for more than 3 seconds while the mark is flashing Press another button to turn off the mark 8 ECO indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 9 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 setting is A th...

Страница 45: ...ear right right bottom right Right Rear right Bottom right Rear left Bottom left Left 6 mm thick heat resisting polyethylene foam Vinyl tape Apply after carrying out a drainage test Saddle Extension drain hose Not available provided by installer Shield pipe Hook Installation plate Hook 65 mm or more 170 mm or more 170 mm or more 600 mm or more 100 mm or more 45 mm or more 400 mm or more 600 mm or ...

Страница 46: ...se 8 mm or 10 mm anchor bolts and nuts 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 Part Code A B C Q ty One each 1 One each If it is necessary to drain the defrost water attach drain nipple r to the bottom plate of the outdoor outdoor unit before installing it 25mm 500 mm 97 mm 60 mm 275 mm Drain outlet Ai...

Страница 47: ...ol holder x 1 Active carbon catechin x 1 Active carbon catechin x 1 Part No 4 5 6 Part No 7 8 9 Others Name Owner s manual Installation manual Part name Q ty Mounting screw 4 x 25 s x 6 Flat head wood screw 3 1 x 16 s x 2 Drain nipple x 1 10 1 3 Accessory and installation parts The part marked with asterisk is packaged with the outdoor unit ...

Страница 48: ... size 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 i...

Страница 49: ...close to a heating source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Fig 10 3 1 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refrigerant pipes from th...

Страница 50: ...e air conditioner NOTE Wire type More than 1 5 mm2 H07RN F or 60245IEC66 CAUTION This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit breaker or switch must be used ...

Страница 51: ...n cap with needle nose pliers and pull out Fig 10 3 8 How to remove the drain hose The drain hose is secured in place by a screw Remove the screw securing the drain hose then pull out the drain hose Screw Drain hose Fig 10 3 9 NOTE Use stranded wire only Wire type H07 RN F or more 10 mm 10 mm 50 mm 110 mm Earth line Connecting cable Stripping length of the connecting cable about 15 cm Terminal cov...

Страница 52: ...posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Fig 10 3 14 NOTE If the pipe is incorrectly bent the indoor unit may be unsta...

Страница 53: ...hooked on the installation plate Installation plate Indoor unit Connecting cable Auxiliary pipes 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hole should be made at a slight downward slant on the outdoor side Fig 10 3 17 2 Put water in the drain pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection part of e...

Страница 54: ...s up 10 m An allowable height level is up to 8 m A place where the drain water does not raise any problem CAUTION 1 Install the outdoor unit without anything blocking the air discharging 2 When the outdoor unit is installed in a place exposed 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 In particularly ...

Страница 55: ...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 using VACUUM PUMP 4 Check gas leak connected points or about 15 minutes if the 5 Be save to fully open the packed valves piping length is 20 meters before operation 15 minutes for 20 meters assuming a pump capacity of 27 liters per minute The...

Страница 56: ...45 IEC66 1 0 mm2 or more Packed valve handling precautions Open the valve stem all the way out but do not try to open it beyond the stopper Securely tighten the valve stem cap with torque in the following table Fig 10 4 8 10 4 4 Wiring connection 1 Remove the valve cover from the outdoor unit 2 Connect the connecting cable to the terminal as identified with their respective matched numbers on the ...

Страница 57: ...ing 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 RESET 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 in the section...

Страница 58: ...rge charging voltage DC280V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc Discharging method 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resist...

Страница 59: ...tops Flashes also in power failure The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates The air flow indication is fixed to AUTO For smooth operation of the compressor the compressor motor speed is restricted to Max 41 rps for 2 minutes and Max 91 rps for 2 m...

Страница 60: ...codes can be confirmed on the remote controller for servicing OPERATION Green Flashing display 1 Hz OPERATION Green TIMER Yellow Flashing display 5 Hz OPERATION Green Flashing display 5 Hz Protective circuit operation for indoor P C board Protective circuit operation for connecting cable and serial signal system Protective circuit operation for outdoor P C board Protective circuit operation for ot...

Страница 61: ...ce 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 9 4 1 Press ON or OFF button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote co...

Страница 62: ...tion continues Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Flashes when trouble is detected on return serial signal and normal status when signal is reset Flashes when trouble is detected on operation command signal and normal status when signal is reset 1 Check the room temp sensor 2 When the room temp sensor ...

Страница 63: ...d on return serial signal and normal status when signal is reset Displayed when error is detected Displayed when error is detected Displayed when error is detected Even if trying operation again all operations stop immediately Replace P C board 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board 2 Measure resistance between wires of comp...

Страница 64: ...ol 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 P C board Refer to Primary check or this problem is one step short of power P C Is the voltag...

Страница 65: ...P C board is replaced Confirmation procedure YES YES NO NO To item of Power is not turned on Turn on power supply Does operation lamp flash Is wired correctly to white and black lead wires of terminal board Correct wiring 64 FILE NO SVM 10017 ...

Страница 66: ...er 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 CN33 when rotating the cross flow fan by hand in no operating status 1 pulse one turn Turn on the power supply Repair the bearing of the fan Turn the power supply Shut off the power supply once Does connecting terminal connecting c...

Страница 67: ...ic 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 control The unit does not beep at all OPERATION lamp on indoor unit is not indicated NO YES YES NO NO NO ...

Страница 68: ...2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to restart the unit 2 If the unit stops once it dose not operate until the power will be turned on again 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alar...

Страница 69: ...t column Push button once to start the unit Do not set the mode to On Timer operation Shorten the restart delay timer and start unit Push button once to start the unit Shorten the restart delay timer Set the operation mode to COOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature The unit com pressor operates continuously in the above condition Check p...

Страница 70: ... compressor operates continuously in the above condition in No 5 1 Check whether or not the com pressor operates 2 Check whether or not the OPERATION indicator flashes 1 Check it is impossible to detect the voltage DC 15V between 3 and 4 of the motor terminals 2 The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote cont...

Страница 71: ...king procedure 11 6 3 Outdoor unit 1 Compressor Model DA89X1C 23EZ Sensor TA TC kΩ 20 7 12 6 10 0 7 9 4 5 5 4 3 2 1 White Yellow Yellow Yellow Yellow 5 4 3 2 1 No Part name Checking procedure Position Resistance value 1 to 2 1 to 3 380Ω 7 1 to 4 1 to 5 Temperature 10 C 20 C 25 C 30 C 40 C Measure the resistance value of winding by using the tester For details refer to Section 10 9 White Black Red ...

Страница 72: ...in continuity test by the tester 11 6 4 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 Soldered surface Heat sink IGBT side C12 C14 3 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature exchanger temperature s...

Страница 73: ... hold down the RESET button on the indoor unit for 3 seconds but not more than 10 seconds The indoor unit s buzzer will emits 3 beeps 3 To operate a cooling mode for 20 minutes then turn off by remote control to ensure that Clean operation is cancelled Remark If Auto restart still require take off J201 when finish a Clean operation cancelling procedure J201 FILE NO SVM 10017 ...

Страница 74: ...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 ...

Страница 75: ... 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...

Страница 76: ...et 2 After connecting 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...

Страница 77: ...charge and voltage remains depending on the malfunction state in some cases NOTE This capacitor has mass capacity Therefore it is dangerous that a large spark generates if short circuiting between the e d polarities with screwdriver etc for discharging 4 Perform the work of 2 5 Remove the screw ST1T 4 x 10s 1 pc fixing the main body and the inverter box 6 Remove the lead wire from the holder on th...

Страница 78: ...sed end splice 1 Perform work of item 1 of 1 1 of 2 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 flame does not touch the...

Страница 79: ... guard side faces downwards 3 Remove the hooking claws by pushing a minus screwdriver according to the arrow mark in the right figure and remove the fan guard 2 Attachment 1 Insert the claws of the fan 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 ...

Страница 80: ...Note 1 As the connector has a stopper release the housing lock when removing Note 2 Hold the housing resin part with stopper and pull out to remove 2 Remove the control board assembly from the inver ter box Note 2 Remove the claw of the board support fixed to the inverter board and remove upwards holding the heat sink 3 Remove the three screws fixing the heat sink and control board assemble 4 Atta...

Страница 81: ...ctive tube is used 10 Fix the sensor again NOTES 1 Store the joint part of the sensor and the connector in the electric parts box 2 Never joint them near the thermal sensor part Otherwise it would cause insulation inferiority because of dew drops 3 When replacing the sensor using the colored protective tube wind the color tape matching the color of that tube Replacement of temperature sensor for s...

Страница 82: ...arts Assy FILE NO SVM 10017 Location Part Location Part No No No No 401 43T60365 TERMINAL BLOCK 3P 405 43T69612 DISPLAY UNIT 403 43T69319 TEMPERATURE SENSOR 410 43T62003 CORD CLAMP 404 43T69320 TEMPERATURE SENSOR 411 43T69824 PC BOARD Description Description ...

Страница 83: ...205 43T09392 HORIZONTAL LOUVER 221 43T39321 MOTOR BAND RIGHT 206 43T70313 HOSE DRAIN 222 43T21409 FAN MOTOR 207 43T79301 CAP DRAIN 224 43T82309 INSTALLATION PLATE 208 43T21363 MOTOR STEPPING 225 43T69615 REMOTE CONTROLLER WIRELESS 209 43T44387 REFRIGERATION CYCLE ASSY 226 43T83003 HOLDER REMOTE CONTROL 210 43T47353 PIPE SUCTION 227 43T62326 TERMINAL COVER 211 43T47355 PIPE SUCTION 228 43T60317 COR...

Страница 84: ...TERMINAL COVER 21 43T00448 FIXING PLATE VALVE 6 43T19341 FIN GUARD 22 43T42331 BASE PLATE ASSEMBLY 7 43T47308 CAPILLARY TUBE 1 0 DIA 23 43T79305 DRAIN NIPPLE 8 43T46331 VALVE PACKED 9 52 DIA 24 43T46351 REACTOR 9 43T47332 BONNET 9 52 DIA 25 43T46343 4 WAY VALVE 10 43T46332 VALVE PACKED 6 35 DIA 26 43T63320 4 WAY VALVE COIL ASSEMBLY 11 43T47331 BONNET 6 35 DIA 27 43T04305 PARTITION 12 43T21400 FAN ...

Страница 85: ...ation Part No No No No 701 43T62320 HEATSINK 705 43T60377 TEMPERATURE SENSOR 702 43T69819 PC BOARD 706 43T50304 SENSOR HEAT EXCHANGER 703 43T60392 TERMINAL 5P 707 43T62313 BASE PLATE PC 704 43T60326 FUSE 708 43T55325 CAPACITOR PLASTIC FILM Description Description ...

Страница 86: ... 56 FILE NO SVM 03005 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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