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Service manual

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11 Troubleshooting

11.1 Display board

Operation

The indicator flashes once every second after power is on and illuminates when the air conditioner is in

operation.

Timer indicator:

The indicator illuminates then TIMER is set ON.

PRE-DEF. indicator (For cooling & heating mode only)

The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating.
At this time, PRE-DEF. indicator illuminates.

Auto indicator:

This indicator flashes when the air conditioner is in AUTO operation.

ECON indicator

This indicator illuminates while the air conditioner is in economic operation.

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Содержание CIC-09M1Z

Страница 1: ...MODEL CIC 09M1Z CIH 09M1Z CIC 12M1Z CIH 12M1Z CIC 18M2Z CIH 18M2Z CIC 24M2Z CIH 24M2Z SERVICE MANUAL ...

Страница 2: ...es 27 8 8 Evacuation 28 8 9 Gas charging 29 9 Electronic function 30 9 1 Electronic control working environment 30 9 2 Proper symbols and their meaning 30 9 3 Function 31 9 4 Protection 31 9 5 Fan only mode 32 9 6 Cooling mode 32 9 7 Dehumidifying mode 33 9 8 Heating mode 33 9 9 Defrosting mode available for heating mode 34 9 10 Auto mode 35 9 11 Force cooling function 35 9 12 Sleep mode Economic ...

Страница 3: ...ontrol 45 11 6 Temperature sensor error 46 11 7 Over current protection of the compressor occurs 4 times 46 11 8 EEROM error 46 11 9 Outdoor unit protects 47 11 10 Indoor unit communication error 47 12 Characteristic of temperature sensor 48 ...

Страница 4: ...aker of fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury Be caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the c...

Страница 5: ...ctric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure When the product is soaked flooded or submerged contact an Authorized service center There is risk of fire or electric shock Be caution that water could not enter the product There is risk of fire...

Страница 6: ...of personal injury Do not step on pr put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other object through air inlet or outlet ...

Страница 7: ...be set at the desired position or swing up and down automatically 13 Auto mode The unit can be change by the room temperature 14 Anti cold function Prevent the cold wind at the beginning of unit start 15 Temp Compensation 16 Defrost mode 17 Auto restart function 18 Flexible wiring connection 19 Easy clean panel 20 Ionizer optional The function is operated by remote controller 21 Follow me optional...

Страница 8: ...Service manual 5 3 Dimension Indoor unit Dimension Mode W H D 9K 790 265 195 12K 920 292 225 18K 1080 330 225 24K 1250 325 230 ...

Страница 9: ...Service manual 6 outdoor unit Dimension Mode W H D L1 L2 9K 780 540 250 549 276 12K 760 590 285 530 290 18K 845 695 335 560 335 24K 895 860 330 590 333 ...

Страница 10: ...0 1100 1000 m3 h 580 500 420 580 500 420 800 730 600 800 730 600 dB A 40 34 27 40 34 27 44 40 36 44 40 36 Model YDK23 6A YDK23 6A YDK23 6A YDK23 6A Brand DY DY DY DY Input W 77 77 77 77 Capacitor μF 6μF 250V 6μF 250V 6μF 250V 6μF 250V Speed r min 880 880 880 880 m3 h 1800 1800 1850 1850 dB A 53 53 55 55 g R410A 1050 R410A 1070 R410A 1330 R410A 1350 MPa 4 5 4 5 4 5 4 5 Liquid side Gas side mm inch ...

Страница 11: ...70 1100 1000 1285 1235 1145 1045 1285 1235 1145 1045 m3 h 800 730 600 800 730 600 1150 1080 1020 960 1150 1080 1020 960 dB A 44 40 36 44 40 36 50 47 44 50 47 44 Model YDK36 6B YDK36 6B YDK53 6KB YDK53 6KB Brand Welling Welling Welling Welling Input W 85 85 172 172 Capacitor μF 2 5μF 450V 2 5μF 450V 3μF 450V 3μF 450V Speed r min 930 930 840 840 m3 h 1900 1900 2500 2500 dB A 55 55 58 58 g R410A 1330...

Страница 12: ... 1350 1200 1090 1350 1200 1090 Model 52 48 45 52 48 45 Brand YDK100 6EB YDK100 6EB Input W Welling Welling Capacitor uF 140 140 Speed r min 4μF 450V 4μF 450V m3 h 760 760 dB A 2500 2500 g 59 59 MPa R410A 2400 R410A 2450 Liquid side Gas side mm 4 5 4 5 Max refrigerant pipe length m Ф9 53 Ф16 Ф9 53 Ф16 Max difference in level m 20 20 10 10 17 30 17 30 m2 18 45 7 45 Model Power supply Cooling Heating...

Страница 13: ...Service manual 10 5 Refrigerant cycle diagram Cooling only Heat pump mode ...

Страница 14: ...lt from the continuous operation under constant air temperature conditions However excludes the initial pull down stage Heating operation Indoor air temp DB Outdoor unit air temp DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage ...

Страница 15: ...AN2 CAP2 XTI CT1 RELAY PAR T NAME COMPRE SSOR COMPRE SSOR CAP ACITOR OUTDOO R FAN OUTDOO R FAN CA PACITOR 7 WAY TERMINAL CURREN T INDUCT OR COMPRE SSOR REL AY CN 2 CN 3 C N 4 CN 1 0 CN 9 BR OW N BL UE BL AC K RE D R E LA Y W HITE BLACK Y G W H ITE W H ITE RE D RE D BLACK BL UE WHITE Y G POWER SUPPLY TO IND OOR UN IT P1 P2 N N L Y G Y G CAP2 G G G CT1 G CIC 09M1Z ...

Страница 16: ...MP RESSOR CA PACI TOR OUTD OOR FA N OUTD OOR FA N C APAC ITOR 7 WA Y TERM INA L CURR ENT IN DUC TOR COMP RESSOR RE LAY FUSE REVE RSING VAL VE CN2 C N3 CN4 CN10 CN6 CT 1 BROWN BLU E BLA CK RED R EL AY WHITE BL ACK Y G WHITE RE D BLAC K BLUE WHIT E Y G POWER SUPPL Y T O INDO OR U NIT P1 P 2 N N L CN5 BLAC K O R BLU E FS2 FS1 VALVE CA P2 WHITE G G G G Y G Y G CN1 CONDEN SATOR SENSOR BL ACK O R BLUE C...

Страница 17: ...XTI CT1 RELAY PAR T NAME COMPRE SSOR COMPRE SSOR CAP ACITOR OUTDOO R FAN OUTDOO R FAN CA PACITOR 7 WAY TERMINAL CURREN T INDUCT OR COMPRE SSOR REL AY CN 2 CN 3 C N 4 CN 1 0 CN 9 BR OW N BL UE BL AC K RE D R E LA Y W HITE BLACK Y G W H ITE W H ITE RE D RE D BLACK BL UE WHITE Y G POWER SUPPLY TO IND OOR UN IT P1 P2 N N L Y G Y G CAP2 G G G CT1 G CIC 12M1Z ...

Страница 18: ...COMPRESSOR CAPACITOR OUTDOOR FAN OUTDOOR FAN CAPACITOR 7 WAY TERMINAL CURRENT INDUCTOR COMPRESSOR RELAY FUSE REVERSING VALVE CN2 C N3 CN4 CN10 CN6 CT 1 BROWN BLU E BLA CK RED R EL AY WHITE BLACK Y G WHITE RED BLACK BLUE WHITE Y G POWER SUPPL Y T O INDO OR U NIT P1 P 2 N N L CN5 BLACK OR BLUE FS2 FS1 VALVE CA P2 WHITE G G G G Y G Y G CN1 CONDEN SATOR SENSOR BLACK OR BLUE CIH 12M1Z ...

Страница 19: ... CT1 RELAY PAR T NAME COMPRE SSOR COMPRE SSOR CAP ACITOR OUTDOO R FAN OUTDOO R FAN CA PACITOR 7 WAY TERMINAL CURREN T INDUCT OR COMPRE SSOR REL AY CN 2 CN 3 C N 4 CN 1 0 CN 9 BR OW N BL UE BL AC K RE D R E LA Y W HITE BLACK Y G W H ITE WHITE RE D RE D BLACK WHITE BL UE Y G POWER SUPPLY TO IND OOR UN IT P1 P2 N N L Y G Y G CAP2 BLUE G G G G CT1 CIC 12M2Z ...

Страница 20: ...RE SSOR COMPRE SSOR C APACITO R OUTDOO R FAN OUTDOO R FAN CAPACIT OR 7 WAY TERMIN AL CURREN T INDU CTOR COMPRE SSOR R ELAY FUSE REVERS ING VA LVE CN2 CN 3 C N4 CN10 C N6 BROWN BLUE B LA CK R ED R ELAY WHITE BLACK Y G WHITE RED RED BLACK BLUE WHITE Y G P OWER S UPPLY TO INDOOR UNIT P1 P2 N N L CN5 BLUE BLUE FS2 F S1 VALVE CA P2 WHITE G G G G Y G Y G CONDEN SATOR SENSOR CN1 CT1 CIH 12M2Z ...

Страница 21: ...S C ON NECTO RS XS 2 X P2 C N4 CN8 A NIO N G ENE RAT OR CN11 G Y G O N SOM E MODEL S G G 8 2 5 5 10 5 4 8 Outdoor unit CODE UNIT1 COMP CAP1 FAN2 CAP2 XT1 XT2 KM1 CT TRANS1 CN1 CN11 PART NAM E OUT DOOR CON TRO L PCB COM PRESSOR COM PRESSOR CAP ACITOR OUT DOOR FAN OUT DOOR FAN CA PACITOR 5 W AY TERMI NAL MID DLE TERM INA L AC CONTACTO R CUR RENT IND UCT OR TRA NSFORMER PCB SOCKETS XT 1 XT2 CT TRANS1...

Страница 22: ... Y G O N SOM E MODEL S G G 8 2 5 5 10 5 4 8 Outdoor unit CODE UNIT1 COMP CAP1 FAN2 CAP2 XT1 XT2 VALVE XP1 XS1 RT3 KM1 CT TRANS1 CN1 CN11 PART NAM E OUT DOOR CON TRO L PCB COM PRESSOR COM PRESSOR CAP ACITOR OUT DOOR FAN OUT DOOR FAN CA PACITOR 5 W AY TERMI NAL MID DLE TERM INA L REV ERSING V ALV E CON NECTORS PIP E TEMPER ATU RE SENSO R AC CONTACTO R CUR RENT IND UCT OR TRA NSFORMER PCB SOCKETS XT ...

Страница 23: ...Service manual 20 Indoor Outdoor CIC 24M2Z ...

Страница 24: ...Service manual 21 Indoor same with the indoor wiring diagram Outdoor CIH 24M2Z CIC 24M2Z ...

Страница 25: ...wer cord of connect should be selected according to the following specifications sheet Amp 10 15 20 mm2 1 0 1 5 2 5 Grade 8 3 Pipe length and the elevation Standard length Max Max Additional m Elevation Elevation refrigerant Btu h GAS LIQUID B m A m g m 3 8 φ9 52 1 4 φ6 35 5 5 10 30 1 2 φ12 7 1 4 φ6 35 5 5 10 30 18K 1 2 φ12 7 1 4 φ6 35 5 8 15 30 24K 5 8 φ15 88 3 8 φ9 52 5 10 20 65 Pipe size 9K 12K...

Страница 26: ... torque wrenches wrench to hold the joints and gas leak detector Note The air in the indoor unit and in the piping must be purged If air remains in the refrigeration piping it will affect the compressor reduce the cooling capacity and could lead to a malfunction of unit Be sure using a torque wrench to tighten the service port cap after using the service port so that it prevents the gas leakage fr...

Страница 27: ... wait for one minute 7 Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m 8 Set the 3 way valve to the opened position 9 Mounted the valve stem nuts to the 2 way and 3 way valves 10 Check for gas leakage 11 At this time especially check for gas leakage from the 2 way and 3 way stem nuts and from the service port Caution If gas leakage is discovered in step 3 above take...

Страница 28: ... charge hose with the push pin to the gas service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 5 Set the 2 way valve to the close position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 7 Immediately set the 3 way valve to the closed position Do this quickly so that the...

Страница 29: ...minutes repeat 3 times 6 After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 7 Check the gas leakage 8 Check the flare connections for gas leakage 9 Discharge the refrigerant 10 Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa 11 Disconnect the charge set and the charging cylinder and set the 2 way a...

Страница 30: ...the service port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If this is the case it will not be necessary to apply a evacuation Discharge ...

Страница 31: ...e has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle ...

Страница 32: ...he specified amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be...

Страница 33: ... temperature TE3 Anti cold wind from Setting Fan Speed to Breeze temperature TE4 Anti cold wind from Breeze to Fan Off temperature TE5 Evaporator low temperature protection entering temperature TE6 Evaporator low temperature protection restoring temperature TE7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evapo...

Страница 34: ...0RPM the unit stops and LED displays failure information and can t returns to normal operation automatically 9 4 4 Cross Zero signal error warning If there is no Cross Zero signals in 4 minutes the unit stops and LED displays failure information and can t returns to normal operation automatically 9 4 5 The current protection of the compressor Current up I restore I fan I 5min I 3sec Indoor fan On ...

Страница 35: ...up Room temp down 1 Compressor on outdoor fan on Compressor off outdoor fan off Auto fan at cooling mode 4 T Ts Room temp up Room temp down 5 High fan Low fan 1 Mid fan Anti freezing control to indoor evaporator at cooling mode T evaporator temp TE5 T EVAP temp up EVAP temp down TE6 Compressor and outdoor fan on Compressor and outdoor fan off after 5 mins Condenser high temperature protection only...

Страница 36: ...sn t delay in dehumidifying mode 9 8 2 Generally the outdoor fan is turned off with the on off action of compressor in heating mode except for the defrosting mode or the end of defrost 9 8 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still valid Ts 2 T Room temp up Room temp ...

Страница 37: ...r exchanger temp T T temp up T temp down TE7 Compressor on Fan on TE8 TE9 Compressor off Fan off Compressor on Fan off The louver opens to Standard Angle ANGLHEAT when power is on for the first time 9 9 Defrosting mode available for heating mode 9 9 1 Defrosting condition Defrost starts when either of the following 1 2 1 T3 lower than 0 C lasts for more than 40 minutes and during this period T3 is...

Страница 38: ...only according to the temperature difference between room temperature TA and set temperature TS 1 TA TS 2 Heating fan only at cooling Fan only Cooling 9 10 2 The indoor fan blows automatically in corresponding selected mode 9 10 3 The motion of indoor fan s blade should accord with the selected operation mode 9 10 4 One mode should be carried out for at least 15 minutes once selected If the compre...

Страница 39: ...en these two modes by pressing the buttons the cycling order of the button press is as below graph show to you Forced cooling Forced auto Remote mode 9 12 Sleep mode Economic mode 9 12 1 The sleep function is available at cooling heating or auto mode 9 12 2 Cooling The set temperature rise 1 per hour Two hours later the set temperature will maintain as a constant and the fan speed is kept at low s...

Страница 40: ...on occur a mode changed b get into Force Cooling mode c turn off the air conditioner 9 14 3 Sleep mode is not available in this mode 9 15 Ionizer air clean function 9 15 1 Ionizer air clean function is effected when the unit is working and controlled by the remote controller 9 15 2 This function is active when the unit received the signal from the remote controller first time and inactive when rec...

Страница 41: ...Service manual 38 9 16 3 When the indoor unit have not received the corrected signal for 7 minutes this function will be shut down The air conditioner is working in common way ...

Страница 42: ...100 CSPEEDL 800 1000 1000 CSPEEDS 700 900 900 TE1 31 31 31 TE2 34 33 33 TE3 30 27 27 TE4 22 20 20 TE5 4 5 5 TE6 10 12 12 TE7 60 62 62 TE8 54 54 54 TE9 48 48 48 ANGLRANGE 185 160 160 ANGLOFF 106 0 0 ANGLCOOL 160 50 50 ANGLHEAT 30 78 78 ANGLCSL 30 35 35 ANGLCSH 55 60 60 ANGLHSL 30 63 63 ANGLHSH 55 78 78 ANGLDL 30 10 10 ANGLDH 160 78 78 ANGLFL 55 78 78 ANGLFH 140 78 78 THDEFROST 14 14 14 TMDEFROST 15...

Страница 43: ...0H AngleDefH 00H AngleMotorOn 39H AngleStep 25H AngleLouver 00H AngleTime 05H IResume 92H I5min C4H I3sec D0H IOFan A3H Idefrost 00H TE1 28H TE2 2FH TE3 2DH TE4 23H TE5 11H TE6 1BH TE7 4EH TE8 47H TE9 41H TE10 50H TE11 46H TE12 40H TE13 45H TE14 2FH TE15 47H TE16 39H TC1 0FH TC2 23H TC3 0CH DefrostTimeL 58H DefrostTimeH 02H CIC CIH 18M2Z ...

Страница 44: ...dicator illuminates then TIMER is set ON PRE DEF indicator For cooling heating mode only The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating At this time PRE DEF indicator illuminates Auto indicator This indicator flashes when the air conditioner is in AUTO operation ECON indicator This indicator illuminates while the air conditioner is in economic opera...

Страница 45: ...rature sensor is open circuit or short circuit illumine alternately Extinguish Flash at 5Hz For 18K Failure phenomenon Operati on lamp Ti mer la mp Defrosti ng lamp Auto lamp Over current protection of the compressor occurs 4 times Indoor room temp sensor is open circuit or short circuit X X X Temp sensor on indoor evaporator is open circuit or short circuit X X X Temp sensor on outdoor condenser ...

Страница 46: ...ck if AC 12V and AC 35V 5 exist at second coil of transformer in the outdoor PCB Outdoor PCB is defective Yes Yes No Take off the secondary plug of transformer and then check if AC 12V and AC 35V 5 exist at secondary coil of transformer No Transformer is defective No Check if DC 35V exists between 2 and 3 on the indoor terminal and DC 12V between 3 and 4 No Indoor PCB is defective Check if DC 35V ...

Страница 47: ...ry coil of outdoor and indoor transformer Check if AC 12V exist at second coil of outdoor and indoor transformer Outdoor or indoor PCB is defective Yes Yes No Take off the secondary plug of transformer and then check if AC 12V exist at secondary coil of outdoor and indoor transformer No Outdoor or indoor transformer is defective Yes Yes Outdoor or indoor PCB is defective No Yes No Change good ones...

Страница 48: ...urs during operation After changing indoor PCB check if the failure realease Yes After changing indoor fan motor check if the failure realease Yes YES Yes Power supply circuit has problems Indoor PCB is defective 11 5 Indoor fan speed out of control Just for 9K and 12K type when indoor fan speed has been out of control for over 1 minute Is connector connection good Is voltage being applied to the ...

Страница 49: ...r current protection of the compressor occurs 4 times Operation lamp off and Timer lamp flashes The voltage of power supply is too low less than 187V No Indoor PCB is defective After changing the main control board check if the failure realease Power supply fault No Outdoor unit fault such as the compressor 11 8 EEROM error EEROM error indoor PCB is defective Over current protection of compressor ...

Страница 50: ...check if the error is still exit Connect the signal wire well or change the signal wire if it sthe problem of the wires No Yes Indoor PCB failure No Outdoor PCB failure change outdoor PCB Yes Check if the power supply is good Change outdoor PCB and check if the error is still exit Power supply failure No Yes Outdoor PCB failure No Compressor failure Yes ...

Страница 51: ...39 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 ...

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