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6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

6-2. Outdoor Unit

No.

Fan motor

(for indoor)

Room temp. sensor (TA-sensor)

Heat exchanger temp. sensor (TC-sensor)

Louver motor

AFS-220-31-4B

( — )

MSBPC20F04

AC 220V, 31W

10k

Ω

at 25°C

10k

Ω

at 25°C

Output (Rated) 1W, 16 poles, DC12V

No.

Parts name

Reactor

Outdoor fan motor

Suction temp. sensor (TS sensor)

Discharge temp. sensor (TD sensor)

Outside air temp. sensor (TO sensor)

Terminal block (

Compressor

Coil for PMV

Model name

CH-69-Z-T

ICF-140-43-4R

(Inverter attached)

——

DA131S1B-31FZ

CAM-MD12T

CTH-5

Rating

L = 1

mH, 1

DC140V, 43W

10k

Ω

(25°C)

62k

Ω

(20°C)

10k

Ω

(25°C)

20A, AC250V

3-phases 4-poles 1100W

DC12V

FILE NO. SVM-12052

Parts name Type Specifications

Содержание 39cvur018-703

Страница 1: ...R410A FILE NO SVM 12052 SERVICE MANUAL SPLIT TYPE September 2012 Outdoor Unit Heat PumpType 38CVUR018 703 Indoor Unit High Wall Heat PumpType 42CVUR018 703 ...

Страница 2: ...5 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 40 11 HOW TO DIAGNOSE THE TROUBLE 55 12 HOW TO REPLACE THE MAIN PARTS 74 13 EXPLODED VIEWS AND PARTS LIST 89 FILE NO SVM 12052 ...

Страница 3: ... 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 naterials with highpressure 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 may be...

Страница 4: ... out of the pipe into the room and is heated by fire or something else from a fanheater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly earthed Do not connect the earth wire to a gas pipe water pipe lightning conductor or telephone earth wire Improper earth work may be the cause of electrical shock Do not install the unit where flammable gas may leak If...

Страница 5: ... Ensure that drained water is discharged Improper drainage can result in water leakage causing water damage to furmiture Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installation work Failure to ...

Страница 6: ...argeless length m Maximum height difference m Refrigerant Name of refrigerant Weight kg Wiring Power supply connection Interconnection Usable temperature range Indoor C Outdoor C Accessory Indoor unit Installation plate Wireless remote controller Batteries Remote controller holder Nano Photo Copper Zinc filter Nano Silver Ginseng filter Mounting screw Remote controller holder Pan head wood screw I...

Страница 7: ...5 46 Outdoor Temperature C Capacity Ratio 2 3 Capacity Variation Ratio According to Temperature Condition Indoor DB27 C WB19 C Indoor Air Flow Volume High Pipe Length 7 5m Capacity Ratio 100 5 0kW Cooling 0 00 1 00 2 00 3 00 4 00 5 00 6 00 7 00 8 00 9 00 10 00 11 00 12 00 0 10 20 30 40 50 60 70 80 90 100 110 120 Current A Compressor Speed RPS ...

Страница 8: ... 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 9: ...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 10: ... 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 11: ...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 12: ... 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 Whether conven tional equ...

Страница 13: ...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 14: ... 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 15: ... 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 16: ...oller holder Wireless remote controller Grille Inlet Front Panel 132 150 200 222 200 278 525 Drain hose 0 5 Hanger Hanger Connecting pipe 0 39m Flare 6 35 Flare 12 70 Connecting pipe 0 49m 786 262 5 262 5 235 215 215 235 320 6 5 40 47 85 6 5 40 23 109 215 5 153 5 Hanger Installation plate outline Hanger Hanger Outline of indoor unit For stud bold 6 For stud bold 8 10 Center line 17 5 149 57 172 18...

Страница 17: ... Liquid side Flare 6 35 Ø Ø Gas side Flare 12 7 Service port 4x 11 Long holes For 8 10 anchor bolt Installation dimension Air outlel 100 or more 100 or more 600 or more 600 or more Air intlel Ø Ø Ø Ø6 hole 86 Ø6 hole Ø11x14 hole R15 28 A 320 R5 5 36 108 125 50 129 84 5 4 600 320 90 600 90 290 550 Ø 436 Z R15 50 36 2 320 342 69 Ø Ø Ø 275 2 2 Outdoor Unit FILE NO SVM 12052 16 ...

Страница 18: ...EL YEL YEL WHI BLU BLU BLU BLU BLU BLU BLU BLU Color indication YEL YELLOW BLK BLACK RED RED BLU BLUE WHI WHITE GRN YEL GREEN YELLOW Varistor Line Filter WP 027 Wireless Unit Assembly Thermo Sensor TA Heat Exchanger Sensor TC AC Motor Louver Motor Fan Motor Main P C Board WP 020 Power Supply Circuit DC12V DC5V T3 15A Fuse F01 CN21 CN10 WHI CN11 BLK CN32 WHI CN33 WHI CN22 WHI CN31 WHI CN62 BLU CN61...

Страница 19: ...les DC12V No 1 2 3 4 5 6 7 8 Parts name Reactor Outdoor fan motor Suction temp sensor TS sensor Discharge temp sensor TD sensor Outside air temp sensor TO sensor Terminal block 5P Compressor Coil for PMV Model name CH 69 Z T ICF 140 43 4R Inverter attached Inverter attached Inverter attached DA131S1B 31FZ CAM MD12TCTH 5 Rating L 19mH 10A DC140V 43W 10kΩ 25 C 62kΩ 20 C 10kΩ 25 C 20A AC250V 3 phases...

Страница 20: ...dized 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 Strainer Pulse Modulating valve at liquid side Compressor DA131S1B 31FZ Outdoor heat exchanger Propeller fan Refrigerant amount 1 40kg OUTDOOR UNIT Min 2m Chargeless 15m Max 20m Charge 20g ...

Страница 21: ...oor Outdoor T1 C 27 19 35 0 9 to 1 1 9 to 12 High High 66 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchaner path U bent Thermistor themometer 2 Connecting piping condition 7 5 m Standard pressure P Mpa Compressor revolution rps Outdoor fan mode Indoor fan mode ...

Страница 22: ...ssor Fan Motor Starting Control Processing Temperature Processing Timer Serial Signal Communication Clean Function Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Initializing Circuit Power Supply Circuit Converter D C circuit Noise Filter Clock Frequency Oscillator Circuit M C U Power Supply From Outdoor Unit Serial Signal Transmitter Receiver Seri...

Страница 23: ...sensor Indoor unit send receive circuit Noise Filter MCC5009 P C B PWM synthesis function Input current release control IGBT over current detect control Outdoor fan control High power factor correction control Inverter output frequency control A D converter function PMV control Discharge temp control Signal communication to indoor unit PMV Pulse Motor Valve M C U Micro Control Unit Outdoor Fan mot...

Страница 24: ... of error 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 Operation control of outdoor fan motor P M V control Operations followed to judgment of serial signal from indoor side Detection of inverter input current and current release operation Over current detection...

Страница 25: ...2 Air direction adjustment 30 3 Swing 30 8 ECO operation 31 9 Temporary operation 31 10 Discharge temperature control 32 11 Pulse Modulating valve P M V control 32 12 Remote A or B selection 33 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 34 9 3 2 How to Cancel the Auto Restart Function 35 9 3 3 Power Failure During Timer Operation 35 9 4 Remote Control 9 4 1 Remote Control...

Страница 26: ...r unit Control contents of remote controller ON OFF Air conditioner Air purifier Operation select COOL 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 i...

Страница 27: ... 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 follow figure The Fan only operation continues unit the room temperature reaches a level at which another mode is selected 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode 4 DRY operation DR...

Страница 28: ... 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 L L M M H W6 L M 2 W9 M H 2 WC Indication Fan...

Страница 29: ...ions of outdoor temperature To and compressor revolution the speed of the outdoor fan shown in 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 ir OFF Alarm d...

Страница 30: ...r 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 Change of compressor speed Remote controller Indoor unit Ts Ta Current decrease Correction value of Hz signal Operating Hz Outdoor unit inverter main circuit control current High Low Reduce compressor speed O...

Страница 31: ...ture When the value is in Q zone the compressor speed is kept FILE NO SVM 12052 Horizontal blowing Inclined blowing Blowing downward Air direction Inclined blowing Horizontal blowing Initial setting of Storage position Louver Directs downward 37 4 7 Louver control This function controls the air direction of the indoor unit Swing operation is performed in width 35 with the stop position as the cent...

Страница 32: ...depend on presetting and can change every speed after setting ECO operation Cooling operation 3 The compressor speed is controlled as shown in the left figure 9 Temporary operation Pressing RESET button starts the temporary opera tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed Filter lamp ON Press RESET button Did you press ...

Страница 33: ...According to operating status of the air conditioner this function also controls the open degree of valve with an expansion valve with pulse Modulation 1 When starting the operation move the valve once until it fits to the stopper Initialize In this time Click sound may be heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was exces sively up adj...

Страница 34: ... POWER mark is indicated on the display of the remote controller and the unit operates as follows 1 Automatic operation The indoor unit operates in according to the current operation 2 Cooling operation remote controller does not change The indoor unit s fan speed level increase 1 tap The preset temperature drops 1ºC The value of the preset temperature on the 3 The Hi POWER mode can not be set in ...

Страница 35: ...on once more or use the remote controller to turn it on 9 3 Auto Restart 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 w...

Страница 36: ...times If the unit is required 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 ...

Страница 37: ...on 2 Mode select button 3 Temperature button 4 Fan speed button 5 Swing louver button 6 Set louver button 7 On timer button 8 Off timer button 9 ECO Sleep button 10 Setup button 11 Clear button 12 Memory and Preset button 13 High power button 14 Economy button 15 Quiet button 16 Filter reset button 17 Set clock button 18 Check button 19 Reset button 20 4 6 5 16 14 11 9 10 18 19 20 17 8 15 13 7 12 ...

Страница 38: ... the timer Press Set the timer Press Cancel the timer Press Press Set the ON timer Press Press Set the OFF timer Press button during the or mark flashing 1 1 2 3 2 3 4 Daily timer allows the user to set both the ON OFF timers and will be activated on a daily basis Setting Daily Timer During the daily day timer is activation both arrows are indicated or Cancel the timer Note Keep the remote control...

Страница 39: ...low and automatically turn OFF Press Select 1 3 5 or 9 hrs for OFF timer operation 8 PRESET OPERATION Set your preferred operation for future use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold for 3 seconds to memorize the setting The mark P displays 3 Press Operate the preset operation Note The cooling op...

Страница 40: ...POWER operation starts Press the Hi POWER button to start and press it again to stop the operation 8 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is blinks Press another button to turn off the mark 9 ECO indicator Indicates when the ECO is in activated Press the ECO bu...

Страница 41: ...all For the rear left and left piping Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack Make sure to run the drain hose sloped downward Cut the piping hole sloped slightly Attach to the front panel 6 Filter 5 Filter Hook 600 mm or more Vinyl tape Apply after carrying out a drainage test Saddle Extension drain ...

Страница 42: ...et Air outlet Drain outlet 600 mm 90 mm 125 mm 108 mm 28 mm 86 mm 102 mm 320 mm 2 5 m m Æ 10 2 1 Optional installation parts Fixing bolt arrangement of outdoor unit Part Code A B C Q ty One each 1 One each Parts name Refrigerant piping Liquid side 6 35 mm Gas side 12 70 mm Pipe insulating material polyethylene foam 8 mm thick Putty PVC tapes 10 2 Optional Parts Accessories and Tools ...

Страница 43: ...tery x 2 Part name Q ty Remote control holder x 1 Nano Silver Ginseng filter x 2 Part No 4 5 6 Part No Others Name Owner s manual Installation manual Part name Q ty 11 Nano Photo Copper Zinc Filter x 2 Battery cover x 1 7 8 9 10 Mounting screw 4 x 25 s x 6 Flat head wood screw 3 1 x 16 s x 2 Flat head wood screw 3 1 x 25 s x 1 Screw 4 x 10 s x 2 ...

Страница 44: ... 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 45: ...pipe hole brim ring sold separately Mounting the installation plate Fig 10 3 2 m from the right side edge is e center of pipe hole 35 120 180 240 23 mm 65 mm The center of the pipe hole is above the arrow Pipe hole Fig 10 3 1 Fig 10 3 3 FILE NO SVM 12052 5 4 45 5 7 Top view Reception range Remote control Remote control Side view Indoor unit I ndoor unit R e c e p t i o n r a n g e To unit out line...

Страница 46: ...re 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 2 Connection with power s...

Страница 47: ...open the iower part of the front panel thon pull the upper part of the front toward you to remove it from the rear plate as shown on figure 4 After removing the front panel remove the screws and Display unit from the unit as shown on figure 2 then open the front cover of Display unit as shown on figure 1 3 2 Securely remove four screws at the front panel 5 Arrange the control wire as detail and sp...

Страница 48: ...er 0 25 N m 0 03 kgf m 7 8 connect remote control and air conditioner 1 Recommend to use double insulation lead wire for 2 For wire operation 1 remote control can control only Remark 1 indoor unit How to install the air inlet grille on the indoor unit When attaching the air inlet grille perform the same process as for removal but in severse order 10 3 6 Piping and drain hose installation Piping an...

Страница 49: ...d then pulling out the drain hose When removing the drain hose be careful of any sharp edges of steel plate The edges can injuries To install the drain hose insert the drain hose firmly until the connection part contacts with heat insulator and the secure it with original screw CAUTION Firmly insert the drain hose and drain cap otherwise water may leak Slit 4 mm How to attach the drain cap 1 Inser...

Страница 50: ...ind 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 Fig 10 3 20 Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to one another and cut off the insulating tape wound on...

Страница 51: ...ain hose insulate the connection part of extension drain hose with shield pipe Fig 10 3 25 Screw Screw 11 Information The lower part of indoor unit may float due to the condition of piping and you cannot fix it to the installation plate In that case use the 11 screws trovided to fix the unit and the installation plate Fig 10 3 23 CAUTION Arrange the drain pipe for proper drainage from the unit Imp...

Страница 52: ... place full of machine oil A saline place such as the coast A place full of sulfide gas A place where high frequency waves are likely to be generated such as from audio equipment welders and medical equipment Strong wind 90 Roughness Warp Obliquity 1 Cut the pipe with a pipe cutter Fig 10 4 2 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm 10 4 2 Refrig...

Страница 53: ...cked valves both gas and liquid sides 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Fig 10 4 7 Packed valve at liquid side Pressure gauge Manifold valve Packed valve at gas side Vacuum pump adapter for counter flow prevention 101 kPa 76 cmHg Handle Lo Compound pressure gauge Charge hose Connecting pipe Vacuum pump Charge hose Handle Hi Keep full ...

Страница 54: ...can be connected to the mains Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring Maximum running current Plug socket fuse rating 220 230V Single phase 60Hz Power cord 9 2A 12A More than H07RN F or 60245 IEC66 1 The supply voltage must be the same as the rated voltage of the air conditioner Wire type...

Страница 55: ... pencil 00 will be shown on the display 4 Press MODE during pushing CHECK B will show on 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 is memorized Picture 1 2 Picture 1 2 10 5 3 Test operation To switch t...

Страница 56: ...ic shock may be caused in case of touching parts on the P C board by hand The inverter will be incorporated starting with this unit The control circuitry has an uninsulated construction Fig 11 1 IGBT 6 FET 6 MCU Compressor Fan motor Shared potential Driver Driver Amplifier Amplifier No 1 2 3 4 5 6 7 8 Troubleshooting Procedure First Confirmation Primary Judgment Judgment by Flashing LED of Indoor ...

Страница 57: ... the components Do NOT lay the circuit board assembly flat 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 touching the cha...

Страница 58: ... the room temperature is within range of compressor ON Increasing 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 Description The OPERATION lamp of the indoor unit flashes when power source is turned on If START STOP button is operated once flashing stops Fla...

Страница 59: ...played when air conditioner operates 2 When item B and C and item B and 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 Green Flashing display 1 Hz OPERATION Green TIMER Yellow FILTER Orange Flashing display 5 Hz OPERATION Green FILTER Orange Flashing display 5 Hz OPERATION Green TIMER ...

Страница 60: ...n the display All indicators on the indoor unit will flash 5 times per 1 sec 1 2 3 4 11 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the remote controller 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the ...

Страница 61: ...m errors The lamp on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is defected And it returns to the normal condition when recovering from errors The lamp on the indoor unit blinks when error is defected The lamp on the indoor unit blinks when error is detected 1 Check the indoor thermo sensor T...

Страница 62: ...V indicated on rear of indoor control board normal Does transmission mark on remote controller flash normally and is its signal transmitted properly Item by symptoms Operation Check Item Considerable principle cause Measures Parts R01 C01 C02 R64 C27 DB01 Remote controller is defective Refer to 5 Troubleshooting for remote controller Parts of a power supply circuit defective Unit operates normally...

Страница 63: ...cross flow fan by hand at the operation stop condition is the rotation signal DC 12V 0V detected between 2 Purple lead and 3 Blue lead of the motor connector CN33 1 pulse 1 revolution Dose AC120V or ligher voltage apply to between red and black lead of the motor Is it possible to change airflow level to HIGH Stop the operation Does fan motor continue to operate Does indoor fan operate Fan motor op...

Страница 64: ...e cover of the fan motor lead wires 3 Check DC voltage with CN31 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating Use a thin test rod Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan...

Страница 65: ...t Does indoor unit operate when moving remote controller near receiver or indoor unit Batteries are exhausted Point remote to digital camera can see infrared at sending LED on carmera monitor when push button Is transmission mark indicated Reciver P C board is defective Replace reciver P C board Replace batteries Replace remote controller Normal operation Remote controller is defective NO YES NO Y...

Страница 66: ...tdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 If the unit stops once it does not operate until the power will be turned on again 2 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Red White Terminal block S5277G Tester...

Страница 67: ...und hitting to stopper heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once 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 indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor...

Страница 68: ...ressor Check whether 25A fuse on the control board assembly is blown or not F01 Turn on the power breaker and operate the air condi tioner in COOL mode by time shortening Measure terminal voltage of the electrolytic capacity 500µF 400V 3 760µF 400V 3 After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electrolytic capacitor by soldering iron Check voltage...

Страница 69: ...or control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the P C board follow the procedure described below NG OK B A Replace control board assembly Replace control board Replace compressor Check compressor winding resistance Diagnosis Process flowchart Item Check Operation ...

Страница 70: ... 1 Between CN51 and No 1 of CN01 DC 15 60V Check whether or not all indicators OPERATION TIMER FILTER are lit for 3 seconds and they return to normal 3 seconds later 1 Check whether or not the com pressor operates 2 Check whether or not the OP ERATION 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 or the ...

Страница 71: ...0 0 0 10 20 30 40 50 Resistance value k Temperature C TD Discharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TS Suction temp sensor TA TC TO TS TD 1 Sensor characteristic table 70 FILE NO SVM 12052 12V GND 5V 12V ...

Страница 72: ...stance value of winding by using the tester Under 20 C Measure the resistance value of winding by using the tester Under 20 C 4 Part name Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS Checking procedure Disconnect the connector and measure resistance value with the tester Normal temperature Temperature Sensor TD kΩ TO TS kΩ 10 C 20 C 25 C 30 C 40 C 50 ...

Страница 73: ...k that electrolytic liquid does not blow off 6 Check that the normal charging characteristics are shown in continuity test by the tester Case that product is good Pointer swings once and returns slowly When performing test once again under another polarity the pointer should return C12 C13 C14 500µF 400V 1 Turn OFF the power supply breaker 2 Completely discharge the four electrolytic capacitors 3 ...

Страница 74: ...f 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 lea...

Страница 75: ...shed they may ignite any oil mixed with the refrigerant gas 2 Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if 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 inspectin...

Страница 76: ...pcs 6 Take off four hooks of panel from rear side How to assemble the front panel 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 4 pcs at the top side of the front panel to the rear plate 2 Tighten four screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 2 Screws Three hooks 4 Scr...

Страница 77: ...ads once at the bottom 4 Disengage the display unit by simply pushing at the top of the display unit 5 Remove the fixing screw that secures the conduit mount electric parts box assembly LED assembly and remove the assembly Electric art box cover s screw TC sensor Earth Screw Fan motor connector Louver motor connector Fixing screw LED assembly Fixing screw Loof the qrunding wire p FILE NO SVM 12052...

Страница 78: ...ontal louver leftward m Evaporator Heat exchanger 1 Follow to the procedure in the item k 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger Remarks 4 Remove two fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body Screw Screw 2 Screws FILE NO SVM 12052 ...

Страница 79: ...s out from the housing push it into the specified position and then incorporate it in the main body Two screws Bearing Bearing base Two screws Bearing Bearing base FILE NO SVM 12052 One screw One screw 4 Remove three fixing screw at the right side of the heat exchanger and separate the heat exchanger from the back body Bearing Evaporator Heat exchanger Figure 5 Figure 4 5 Figure 4 n o ...

Страница 80: ...ew of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band Remarks 5 Pull the fan motor outward Set screw Two screws on motor band Two screws on motor cover FILE NO SVM 12052 p ...

Страница 81: ...e 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 q FILE NO SVM 12052 Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooki...

Страница 82: ...e the indoor unit 2 Attach the upper cabinet ST1TØ4 10L 5 pcs 3 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws ST2T 4 x 14L 3 pcs fitting 2 concave parts of the cord clamp to each connecting cables 4 Attach the valve cover ST1T 4 x 10L 2 pcs Insert the upper part into the square hole of the side cabinet set hook claws of the valve cover to...

Страница 83: ...t is fitted into the side cabinet left at the front left side so pull up the top of the front cabinet to remove it 2 Attachment 1 Insert the claw on the front left side into the side cabinet left 2 Hook the bottom part of the front right side onto the concave section of the bottom plate Insert the claw of the side cabinet right into the square hole in the front cabinet 3 Return the screws that wer...

Страница 84: ... 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 Discharging position Discharging period 10 seconds or more Plug of soldering iron The connector is one with lock so remove it while pushing...

Страница 85: ... released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the heat sink and control board assembly while keeping them screwed together NOTE Disengage the four claws of the P C board base hold the heat sink and lift to remove it 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembl...

Страница 86: ...d heat exchanger Remarks Detail A Detail B Detail C 1 Perform work of item 1 of and 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 4 pcs holding by hands so that the fan motor do...

Страница 87: ...the terminal 6 Remove pipe connected to the compressor with a burner Remarks Reactor 1 Perform work of item 1 of and 2 Remove screws fixing the reactors ST1TØ4 10L 2 pcs FILE NO SVM 12052 7 Remove the fixing screw of the bottom plate and heat exchanger ST1TØ4 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1TØ4 10L 1 pc 9 Pull upward the refrigeration cycle 10 Remov...

Страница 88: ...oil from the valve body use your hand to secure the body in order to prevent the pipe from being bent out of shape 1 Detachment 1 Perform work of item 1 of 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according to the arrow ma...

Страница 89: ...nd trouble will result if the sensors have not been installed in their proper positions TS sensor Suction pipe temperature sensor Attachment Install the senser onto the straight pipe part of the suction pipe Be careful for the lead direction of the sensor TD sensor Discharge pipe temperature sensor Attachment With its leads pointed upward install the sensor onto the vertical straight pipe part of ...

Страница 90: ...RIGHT DOWN ASSY 204 43T80331 FILTER AIR 215 43T44030 EVAPORATOR ASSY 205 43T09040 LOUVER HORIZONTAL 216 43T19333 HOLDER SENSOR 206 43T70313 HOSE DRAIN 217 43T49010 PIPE SHIELD 207 43T79313 CAP DRAIN 218 43T82008 PLATE INSTALLATION 208 43T21360 MOTOR FAN 219 43T49043 HOLDER PIPE 209 43T20016 FAN ASSY CROSS FLOW 220 43T62031 COVER TERMINAL 210 43T39021 BASE BEARING 221 43T66319 WIRELESS REMOTE CONTR...

Страница 91: ...Part No No No No 401 43T50324 SENSOR HEAT EXCHANGER 405 43T6V318 PC BOARD ASSY WRS LED 402 43T60331 TERMINAL 3P 407 43T69834 PC BOARD ASSY 403 43T69320 TEMPERATURE SENSOR 412 43T21434 STEPPING MOTOR 404 43T62003 CORD CLAMP 413 43T60386 MOTOR CORD Description Description ...

Страница 92: ...FAN 6 43T19330 PACKED VALVE COVER 22 43T21375 FAN MOTOR 7 43T62325 ELECTRIC PART COVER 23 43T47001 NUT FLANGE 8 43T41446 COMPRESSOR 24 43T97001 NUT 9 43T43444 CONDENSER ASSEMBLY 25 43T49335 RUBBER CUSHION 10 43T46354 VALVE PACKED 6 35 DIA 28 43T63319 HOLDER SENSOR 11 43T46355 VALVE PACKED 12 7 DIA H4 30 43T39333 MOTOR BASE CONNECTION PLATE 12 43T47331 BONNET 6 35 DIA 32 43T63317 HOLDER SENSOR 13 4...

Страница 93: ...052 Location Part Location Part No No No No 701 43T62320 HEATSINK 705 43T60377 TEMPERATURE SENSOR 702 43T69944 PC BOARD 706 43T50304 SENSOR HEAT EXCHANGER 703 43T60392 TERMINAL 5P 707 43T62313 BASE PLATE PC 704 43T60326 FUSE Description Description ...

Страница 94: ...TOSHIBA CARRIER THAILAND CO LTD ...

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Carrier 39cvur018-703, Руководство по обслуживанию, Страница: 19 / 94

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