TCL TAC-09CSD/XA81I Service Manual Download Page 42 | Manualshive

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TCL TAC-09CSD/XA81I Service Manual Download Page 42

TCL Air Conditioner Service Manual

42

3.2.8 EU---

ODU voltage test sensor failure

After power relay works, when tested voltage effective value less than 50V for 3s continuously, unit will display EU.

Start

Display EU

Test voltage btw ODU

terminal L/N, more than

50V

~?

End

Replace ODU PCB

Check while voltage

become normal

Yes

No

No

Yes

Unit works?

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Summary of Contents for TAC-09CSD/XA81I

Page 1: ...TCL Air Conditioner Service Manual 1 Inverter air conditioner Service Manual Models TAC 09CSD XA81I TAC 12CSD XA81I TAC 18CSD XA81I...

Page 2: ...2 1 Installation Dimension Diagram 26 2 2 Accessory 27 2 3 Tools 27 2 4 Position 28 2 5 Electricity and wiring 28 2 6 IDU Installation 28 2 7 ODU Installation 31 2 8 Vacuum and gas leakage test 32 2...

Page 3: ...pt to repair the appliance may result in personal injury and property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability...

Page 4: ...de 2 way valve Gas side 3 way valve Compressor 4 way valve Muffler Muffler Heat exchange Condenser Heat exchange Evaporator Electronic expansion valve Cooling Capillary Compressor Accumulator Heat exc...

Page 5: ...TCL Air Conditioner Service Manual 5 3 Electric Diagram 3 1 Wiring diagram INDOOR UNIT TAC 09CSD XA81I TAC 12CSD XA81I OUTDOOR UNIT TAC 09CSD XA81I TAC 12CSD XA81I EEV...

Page 6: ...TCL Air Conditioner Service Manual 6 INDOOR UNIT TAC 18CSD XA81I OUTDOOR UNIT TAC 18CSD XA81I...

Page 7: ...onnector 12 Up Down swing connector 13 Display 14 Emergency button 15 AC fan motor feedback 16 Temperature sensor connection 17 WIFI connection 1 ODU AC power output 2 Fuse 3 ODU AC power input 4 DC f...

Page 8: ...TCL Air Conditioner Service Manual 8 A010403 A010412...

Page 9: ...tdoor unit 9K 12K A010313 1 ODU PCB Mainly relay 2 Fuse 3 L N 1 communication wiring 4 4 way valve 5 Heater 6 DC fan motor connector 7 Electronic expansion valve 8 Discharge sensor connector 9 OAT OPT...

Page 10: ...ture OPT Outdoor pipe temperature 1 DRED OPTION 2 OAT OPT connector 3 Discharge sensor connector 4 Electronic expansion valve 5 AC DC fan motor connector 6 Heater 7 4 way valve 8 LED5 9 Communication...

Page 11: ...fan speed and vane position according to preset 2 Compressor and process control 1 When RT ST 0 5 the compressor starts up working AC operates as customer preset 2 When a RT ST 3 and compressor keeps...

Page 12: ...3 RT ST COMPRESSOR OUTDOOR FAN INDOOR FAN 160S 160S 10min 5min 2min ON OFF 5s 0 5 7min 3min 4 1 3 Dry mode 1 Temperature control 16 31 Fan speed low Vane blade position as customer preset 2 When ODU...

Page 13: ...2 When heating mode switched off or changed from heating to other modes the 4 way valve will be OFF 2 min delay after the compressor stops working 3 Unit stops working caused by any kind of protection...

Page 14: ...While IPT increase to a special degree the vane blade will change the position to Default angle or Previous position or Customer preset The above operation can work one time only when compressor stop...

Page 15: ...work at the same mode as before Note The function setting Within 3 min while power on unit set the unit on cooling mode set temperature 30 and mid fan speed press the ECO button 10 times within 8s the...

Page 16: ...peration 3 If unit have 6 times of over current stop working protection continuously this protection can t be recovered unless press ON OFF button In the process of unit operation once the compressor...

Page 17: ...CL Air Conditioner Service Manual 17 code as IDU ODU communication failure Once the IDU ODU communication recovery and also the compressor stopped for 3 min already can the unit be recovered to operat...

Page 18: ...e and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air conditioner 8 The power cord and power connection wires can t be pressed by hard...

Page 19: ...may be cause compressor overheat resulting in injury During refrigerant recovery make sure that two way valve and 3 way valve are fully closed and power is disconnected before detaching the connectin...

Page 20: ...tall an appliance with refrigerant charge M kg shall be in accordance with following Amin M 2 5 x LFL 5 4 x h0 2 Where Mmax is the allowable maximum charge in a room in kg M is the refrigerant charge...

Page 21: ...ic Electricity Must wear protective clothing and anti static gloves Don t use mobile phone Installation Safety Caution The installation should be in a well ventilated condition location When you insta...

Page 22: ...he functions before using the concentration detectors Pressure Gauge A The pressure gauges should be calibrated regularly B The pressure gauge used for Refrigerant 22 can be used for Refrigerants R290...

Page 23: ...y is lower than 40 it is necessary to wear anti static clothing and gloves If the combustible refrigerant is found leaking during the maintenance it is a must to immediately take forced ventilation an...

Page 24: ...ventilated Before welding the outdoor unit it is a must to confirm that the refrigerating system has been drained and the system has been cleaned and ensure that there has been no refrigerant in the o...

Page 25: ...and evacuating the affected personnel urgently from the location It is necessary to inform near residents of evacuating for over 20 meters from the location make an alarm call set the emergency area a...

Page 26: ...least 300cm Space to the wall At least 15cm Space to the wall Space to the obstruction At least 250cm Space to the floor At least 50cm Space to the obstruction At least 30cm Space to the obstruction...

Page 27: ...djustable Crescent Wrench Screw drivers Phillips Flat blade Safety Glasses Torque Wrench Manifold and Gauges Work Gloves Hex Keys or Allen Wrenches Level Refrigerant Scale Drill Drill Bits Flaring too...

Page 28: ...eave the spaces as shown in the picture for The air to circulate freely Install the outdoor unit in a safe and solid place If the outdoor unit is subject to vibration place rubber gaskets onto the fee...

Page 29: ...front panel 4 Connect the cable wires to the screw terminals by following the numbering Use wire size suitable to the electric power input see name plate on the unit and according to all current nati...

Page 30: ...odates the rear piping housing section with vinyl tape Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing sect...

Page 31: ...e outdoor unit during heating operation can be drained away through the drain pipe 1 Fasten the drain port in the 25mm hole placed in the part of the unit as shown in the picture 2 Connect the drain p...

Page 32: ...ew caps of valve and refrigerant charging vent 2 Leakage Detection 1 With leakage detection Check if there is leakage with leakage detection 2 With soap water If leakage detection is not available ple...

Page 33: ...failure Fan motor ODU PCB EU ODU Voltage test circuit abnormal ODU PCB P0 IPM module protection ODU PCB P1 Over under voltage protection 1 ODU PCB broken 2 Power supply abnormal P2 Over current protec...

Page 34: ...ture protection Querying by press remote controller FH Limiting Reducing frequency for Compressor driving protection Querying by press remote controller FP Limiting Reducing frequency for anti condens...

Page 35: ...rom IDU terminal btw L N is there 220V Replace IDU PCB No Yes Yes Is the ODU PCB LED5 ON Replace ODU PCB Check voltage from IDU terminal btw L N is there 220V Check the power supply connection Replace...

Page 36: ...r and or coil temperature sensor failure Start Display E1or E2 Re connect Is the sensor well connected to PCB Multi meter check the sensor is it open or short circuit Replace the sensor No Yes Yes Rep...

Page 37: ...e Lower than 0 8 Mpa in cooling 2 0 Mpa in heating is not enough Add gas Check the valves open or not E4 display System block Maintain the system Check the sensor short or open AC pressure correct coo...

Page 38: ...reconnect Multi meter check resistance of fan motor is there open or short circuit of winding Replace IDU PCB Replace fan motor Yes Yes No No End Turn the fan blades by hand while power off Can the f...

Page 39: ...t unit will display failure code as E3 E7 or E8 IDU and ODU turns off When the sensor resistance recovery unit revert to be standby customer can switch on the unit directly Start Display E3 E7 or E8 R...

Page 40: ...odule temperature test circuit failure Solution Replace the ODU PCB 2 FA code Reason The compressor phase current test circuit failure Solution Replace the ODU PCB Display E9 Re power on unit running...

Page 41: ...tor well connect to PCB Re connect 1 For built in control 5pins motor check the Vm 310V Vcc 15V 2 For external control 3pins motor test voltage btw U V W normally from DC 20 200V Replace ODU PCB Check...

Page 42: ...r failure After power relay works when tested voltage effective value less than 50V for 3s continuously unit will display EU Start Display EU Test voltage btw ODU terminal L N more than 50V End Replac...

Page 43: ...o slowly Replace ODU fan motor Yes Replace compressor End Yes No Yes P0 disappear test voltage btw U V W normally from DC 20 200V Unit works normal Turn unit on to check whether the malfunction is eli...

Page 44: ...Test voltage on the big size electrolytic capacitor of ODU PCB When DC busbar voltage V DC420V or V DC150V unit will recover back to previous status while DC190V V DC410V Display P1 Is the power supp...

Page 45: ...han Imax it will stop and display P2 protection Note for different AC model Imax has difference valve Display P2 ODU fan motor works Replace fan motor IDU filter or ODU condenser too dirty Clean IDU f...

Page 46: ...ondenser too dirty or filter blocked IDU ODU fan motor running slowly or stopped Capillary blocked Is the unit gas pressure normal cooling0 8 1 3Mpa heating2 0 3 6Mpa Replace ODU PCB Clean IDU filter...

Page 47: ...ay P5 Switch on unit after minutes Display P5 Normal t ti No Yes IDU filter dirty Yes Clean filter IDU air inlet blocked No Clean Yes Can fan blade rotate freely Check and repair fan blade Fan motor w...

Page 48: ...e OPT 62 MCU will switch off outdoor unit and show P6 failure code Display P6 ODU fan motor works normal Replace OPT sensor Replace ODU PCB Fan motor broken Replace fan motor End No No Yes Yes P6 disa...

Page 49: ...62 ODU PCB will switch off outdoor unit and show P7 failure code Display P7 ODU fan motor works normal Replace IPT sensor Replace IDU PCB Fan motor broken Replace fan motor End No No Yes Yes P7 disap...

Page 50: ...delay the IDU will show P8 failure code 1 On Cooling or Dry mode ODU ambient temperature OAT 20 or OAT 63 2 On Heating mode a OAT 40 b 30 OAT 40 and RT 35 Display P8 Ambient temperature under spec ra...

Page 51: ...bnormal The outdoor unit will shut off and show P9 protection The unit will re startup 6 times continuously if it still can t work normal then show P9 code Display P9 Normal protection as the High pre...

Page 52: ...ion of IDU coil temperature If there is mistake installer forgetting to open the 2 way or 3 way valve on ODU the gas can t flow in the cooling system it will show F4 protection Start Display F4 Open t...

Page 53: ...ction PFC Overcurrent protection F5 Code Display F5 by random Check the power supply is it abnormal this is normal protection Display F5 frequently Still F5 End Replace ODU PCB Yes No No Switch off th...

Page 54: ...f compressor current it will show F6 protection Display F6 Check compressor wiring connector is it well connected Re connect The Compressor wiring in good quality Replace the wires Compressor phase cu...

Page 55: ...and heat sink Fix the screw ODU cooling system abnormal Compressor with big running current 9 12K 6 7A 18 24K 7 9A Low pressure normal 0 8 1 2Mpa IPM temperature circuit abnormal Replace ODU PCB Is th...

Page 56: ...5 or even more after compressor works for 8min unit will show F8 code Display F8 Is there 220V voltage on the 4 way valve Replace ODU PCB Multimeter test the valve coil resistance does it open or sho...

Page 57: ...ll show Fy failure code Check the pipe connection any gas leakage Repair and charge new gas as SPEC Check the room evaporator coil temperature No Is the temperature difference more than 2 btw RT IPT a...

Page 58: ...B Remove one screw and take the displa box out from the panel C Release panel axis which shown in re arrows out from middle frame and tak the panel out D Unscrew and take the WIFI module ou from midd...

Page 59: ...the cover 5 Remove the filter Push the filter upwards a little you can take it out from unit 6 Disassembly the middle frame A Open the screw cover and unfix screw with cross screwdriver B Remove the m...

Page 60: ...ectors out from PCB D Unfix one screw of the control box with unit BASE FRAME and take the control box out from unit Note The right picture for your reference only for the exact model the wiring conne...

Page 61: ...e the evaporator out from unit by uplifting the IUPUT OUTPUT pipes slightly 10 Remove the MOTOR COVER Unfix 4 screws on the motor cover with base frame 11 Disassembly fan motor and fan blade A Uplift...

Page 62: ...Unfix one screw on the PCB cover you can take the cover out from unit 2 Unfix one screw on the valve cover you can take it out easily B Unfix screws btw the top cover with front panel left and right...

Page 63: ...panel you can take it out from unit step3 Disassemble the Left and Right plate A Unfix screws btw Right Plate and the Electric Box assembly Valve Plate Base Plate then you can take the Right plate out...

Page 64: ...e the Axis Fan Blade A Unscrew the fan blade nut and take the blade out step5 Disassemble the electric box Unfix screw btw Electric Box and motor supporter etc loosen the wiring clamp then you can tak...

Page 65: ...Conditioner Service Manual 65 A Shown as picture to take the cotton out step7 Disassemble the separate plate Unfix the screw btw separate plate and unit and take it out step8 Disassemble the 2 and 3 w...

Page 66: ...only place while no gas in the unit 2 Pay attention to the fire to prevent any injury step9 Disassemble exhaust pipe and air return pipe assembly Take exhaust pipe and air return pipe assembly out fro...

Page 67: ...tioner Service Manual 67 step11 Remove the fan motor and fan supporter Unfix screws btw fan motor with supporter and supporter with base plate Note Pay attention to the motor wiring it can t be taken...

Page 68: ...0 6 27 64 65 64 4 18 73 74 73 4 23 82 83 82 4 28 66 67 66 2 19 75 76 75 2 24 84 85 84 2 29 68 68 20 77 77 25 86 86 30 Appendix 2 The Pipe length and Gas charging Mode Standard length m Refrigerant pip...

Page 69: ...n the pipe length B Burrs removal 1 Completely remove all burrs from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a down ward direction as you remove burrs in order to a...

Page 70: ...27 567 4 219 31 3 981 2 192 76 0 895 0 746 13 26 239 4 186 32 3 836 2 146 77 0 869 0 728 12 24 984 4 152 33 3 697 2 101 78 0 843 0 710 11 23 795 4 117 34 3 563 2 057 79 0 819 0 692 10 22 671 4 082 35...

Page 71: ...21 170 7 192 5 217 33 13 25 14 18 15 17 87 1 922 1 983 2 045 20 161 6 182 1 205 34 12 72 13 6 14 54 88 1 861 1 922 1 983 19 153 1 172 3 193 7 35 12 21 13 05 13 93 89 1 802 1 862 1 923 18 145 163 1 18...

Page 72: ...4 117 0 7837 0 8233 0 8641 10 36 04 39 39 43 01 64 4 101 4 288 4 479 118 0 7623 0 8012 0 8413 11 34 42 37 59 41 65 3 961 4 139 4 32 119 0 7415 0 7798 0 8193 12 32 89 35 87 39 1 66 3 827 3 995 4 167 12...

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