TCL TAC-09CSD/XAB1 Service Manual
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TCL TAC-09CSD/XAB1 Service Manual

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TCL Air Conditioner Service Manual 
ON/OFF type air conditioner
Service Manual
Models
TAC-09CSD/XAB1
TAC-12CSD/XAB1
TAC-18CSD/XAB1
1 

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Summary of Contents for TCL TAC-09CSD/XAB1

  • Page 1 TCL Air Conditioner Service Manual  ON/OFF type air conditioner Service Manual Models TAC-09CSD/XAB1 TAC-12CSD/XAB1 TAC-18CSD/XAB1 1 ...

  • Page 2: Table Of Contents

    TCL Air Conditioner Service Manual  CONTENTS PART  Ⅰ  TECHNICAL INFORMATION ................ 3  1. I   ......................  3 MPORTANT  OTICE 2. R   .....................  4 EFRIGERATION CYCLE DIAGRAM 3. E  ......................  5 LECTRIC  IAGRAM 3.1 Wiring diagram ......................  5   3.2 PCB LAOUT  ........................  8   4. E  ................ ...

  • Page 3: Part Ⅰ Technical Information

    TCL Air Conditioner Service Manual  Part Ⅰ Technical Information 1. Important Notice This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage.

  • Page 4: Refrigeration Cycle Diagram

    TCL Air Conditioner Service Manual  2. Refrigeration cycle diagram Cool only Heating Check valve Liquid side 2-way valve Capillary Heat exchange Heat exchange (Condenser) (Evaporator) Gas side 3-way valve 4-way valve Muffler Muffler Heating Cooling Compressor 4 ...

  • Page 5: Electric Diagram

    TCL Air Conditioner Service Manual  3. Electric Diagram 3.1 Wiring diagram MODEL：TAC-09CSD/XAB1 INDOOR UINT: OUTDOOR UINT:   5 ...
  • Page 6 TCL Air Conditioner Service Manual  MODEL：TAC-12CSD/XAB1 INDOOR UINT: OUTDOOR UINT:   6 ...
  • Page 7 TCL Air Conditioner Service Manual  MODEL：TAC-18CSD/XAB1 INDOOR UINT: OUTDOOR UINT:   7 ...

  • Page 8: Pcb Laout

    TCL Air Conditioner Service Manual  3.2 PCB LAOUT（Only for reference） Indoor unit Indoor PCB 7k, 9K, 12K, 18K A010268 9 10 ODU AC power output Fuse Transformer out IDU AC power input AC motor driver IDU/ODU wiring connection-N connector Power supply-N connector...
  • Page 9 TCL Air Conditioner Service Manual  7K, 9K, 12K, 18K Top view A010235 1  ODU AC power output  2  Fuse  3  ODU AC power input  4  AC motor driver  IDU/ODU wiring connection‐N  5  connector  6  Power supply‐N connector  7  Left‐Right swing connector  8  Up‐Down swing connector  9  AC Motor feedback  Display  Emergency button  Temperature sensor connector Trans former IN  Trans former OUT  Anion connrctor  7K, 9K, 12K, 18K，24K...
  • Page 10 TCL Air Conditioner Service Manual  7K, 9K, 12K, 18K，24K Top view A010422 1  Trans former IN  2  ODU AC power output  3  Fuse  4  ODU AC power input  5  AC motor driver  IDU/ODU wiring  6  connection‐N connector  Power supply‐N  7  connector  Left‐Right swing  8  connector  Up‐Down swing  9  connector  10  AC Motor feedback  11  Emergency button  Temperature sensor  12 ...

  • Page 11: Electronic Controller Introduction

    TCL Air Conditioner Service Manual  4. Electronic Controller Introduction 4.1 Electronic controller RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT--- Outdoor Pipe Temperature. CRT--- Compensated Room Temperature. IDU--- Indoor unit ODU--- Outdoor unit. Note: When AC finishing installation, because of the air ventilation and the distance of temperature test sensor to different location of the house, the temperature for IDU PCB control need compensation.
  • Page 12 TCL Air Conditioner Service Manual  2). When switch on unit on cooling mode, ODU fan motor will delay 5s after compressor starts up. 4.1.2.4. When ODU failure or stops for protection, IDU works as preset. 4.1.2.5. Anti-frosting protection While condition a), b) matched, the AC unit transferred to anti-frosting protection.
  • Page 13 TCL Air Conditioner Service Manual  c. changed to fan mode. 4). Under normal operation, the compressor can be stopped by program until it works for 6 min at least once starts 5). In the process of unit operation, once the compressor ceased, it should be 3 min delay for the next procedure.
  • Page 14 TCL Air Conditioner Service Manual  2). Vane blade operation for cold air prevention. a. If the vane works on status of non-swing: While IPT increase to a special degree, the vane blade will change the position to: ① Default angle; or ②...
  • Page 15 TCL Air Conditioner Service Manual    4.1.8 Emergency switch When the EMERGENCY switch is pressed one time, COOLING mode is selected and if it pressed again within 3s, HEATING mode selected, while press once again, the unit will be switched off.

  • Page 16: Part Ⅱ Installation And Maintenance

    TCL Air Conditioner Service Manual    PART Ⅱ Installation and Maintenance 1. Notes for installation and maintenance Safety Precautions Important! Please read the safety of precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions bellow.
  • Page 17 TCL Air Conditioner Service Manual    6) Make sure no foreign objects are left in the unit after finishing installation. Improper installation may lead to fire hazard, explosion, electric shock or injury. Safety precautions for Installing and Relocating the unit.
  • Page 18 TCL Air Conditioner Service Manual    install your air conditioner in a room with an appropriate area and use it correctly. Compared with ordinary refrigerants, Refrigerants R32 & R290 are environmentally friendly and do not destroy the ozone sphere and that their values of greenhouse effect are also very low.
  • Page 19 TCL Air Conditioner Service Manual    Caution:  Please contact the nearest after-sale service center when maintenance is necessary. At the time of maintenance, the maintenance personnel must strictly comply with the Operation Manual provided by the corresponding manufacturer and any non-professional is prohibited to maintain the air conditioner.
  • Page 20 TCL Air Conditioner Service Manual    user’s site.  It is necessary to choose the place where the inlet and outlet air of the indoor unit is even.  It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit.
  • Page 21 TCL Air Conditioner Service Manual     Check the maintenance equipment is applicable to the refrigerant or not and it is only allowed to use the professional equipment recommended by the air conditioner manufacturer.  Check the refrigerant leak detector whether has been calibrated. The set maximum alarm concentration of the refrigerant leak detector should not exceed 25% of the lower explosion limit (LEL), the refrigerant leak detector must be working during maintenance.
  • Page 22 TCL Air Conditioner Service Manual    and have a leak detecting instrument management system. It is necessary to confirm that the leak detector can work normally before maintenance.  The main power switch should be set outside the maintenance location and equipped with protective (explosion-proof) devices.
  • Page 23 TCL Air Conditioner Service Manual    Before doing the trial operation after finishing the maintenance, it is a must to use a practical leak detector to inspect the leakage and reliability of ground connection in order to ensure that no refrigerant leakage and reliable ground connection.

  • Page 24: Installation

    TCL Air Conditioner Service Manual    2 Installation 2.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Space to the obstruction Space to the floor Space to the obstruction Drainage pipe Connecting wire  ...

  • Page 25: Accessory

    TCL Air Conditioner Service Manual    2.2 Accessory Remote controller Remote controller Batteries Vinyl tape supporter Drain hose Screw Insulation material Hole cover        ...

  • Page 26: Position

    TCL Air Conditioner Service Manual    2.4 Electricity and wiring 2.3 Position Safety precaution Indoor unit 1） Must follow the electric safety regulations when  Install the indoor unit level on a strong wall that installing the unit. is not subject to vibrations 2）...
  • Page 27 TCL Air Conditioner Service Manual    7K/9K(698X) The hole must slope downwards towards the exterior. Note: Keep the drain pipe down towards the direction of the wall hole, otherwise leakage may occur. 2.5.3 Electrical connections---Indoor unit 1).Lift the front panel.
  • Page 28 TCL Air Conditioner Service Manual    Wrap the insulation material around the connecting portion.  Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no gap.

  • Page 29: Odu Installation

    TCL Air Conditioner Service Manual    Pay attention that water is drained in a suitable place.  Insert the pipe connection into the relative slot.  Press to join the pipe connection to the base. Electronic connections 1. Take the cover away.

  • Page 30: Vacuum And Gas Leakage Test

    TCL Air Conditioner Service Manual    2.7 Vacuum and gas leakage test 2.8 Final test 1. Use vacuum Pump 1 Preparation of test operation. 1) Air and humidity left inside the refrigerant circuit  The client approves the air conditioner can cause compressor malfunction.

  • Page 31: Maintenance

    TCL Air Conditioner Service Manual    3. Maintenance 3.1 Failure code   Code Reason Remark IDU Room Temperature sensor failure. IDU sensor and PCB. （IDU RT failure） IDU Coil temperature sensor failure.（IDU IDU sensor and PCB. IPT failure） Gas not enough...

  • Page 32: Trouble Shooting

    TCL Air Conditioner Service Manual    3.2 Trouble shooting 3.2.1 E1, E2 ---IDU Room temperature sensor and/or coil temperature sensor failure. Start Display E1or E2 Is the sensor well Re-connect connected to PCB E1/E2 disappear? Multi-meter check the Replace the sensor...
  • Page 33 TCL Air Conditioner Service Manual    3.2.2 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off Adjust the motor and blade Can the fan blades run assembly so that rotor can smoothly? run smoothly.
  • Page 34 TCL Air Conditioner Service Manual    3.2.3 P7---Overheating protection on Cooling mode On heating mode, when IDU evaporator coil temperature IPT≥62 ℃ , ODU PCB will switch off outdoor unit and show P7 failure code. Display P7 ODU fan motor...

  • Page 35: Disassembly Idu & Odu

    TCL Air Conditioner Service Manual    4. Disassembly IDU & ODU 4.1. IDU Disassembly Steps  Reference photo  1. Before disassembly  The orginal status.    2. Disassembly front panel, display board and WIFI module.    显示盒 Display box  A. Open front panel.  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 middle frame.    WiFi模块...
  • Page 36 TCL Air Conditioner Service Manual    4. Remove the electric control box cover  Unfix  one  screw  on  the  cover  of  固   定 The    electric box, and remove the cover.  Fix  螺 screw    钉   5. Remove the filter    Push the filter upwards a little, you can  take it out from unit.        6. Disassembly the middle frame.    Clasps 插扣 A. Open  the  screw  cover,  and  unfix ...
  • Page 37 TCL Air Conditioner Service Manual    7. Disassembly the electric control box.  电控盒 Electric control box  A.  Remove  the  RT  &  IPT  out  from  evaporator;    B.  Unscrew  all  the  earth  ground  wirings on the evaporator.      C.  Take  all  the  connectors  out  from    PCB.      D.  Unfix  one  screw  of  the  control  box ...
  • Page 38 TCL Air Conditioner Service Manual    9. Disassembly the evaporator    screws Screws + motor  螺钉/卡扣 螺钉 A. Unfix 2 screws of left side shown as  cover picture.  B. Unfix 2 screws of right side on motor  cover/right support plate.    C. Take the evaporator out from unit by  uplifting  the  IUPUT/OUTPUT  pipes  slightly.          10. Remove the MOTOR COVER      螺钉 screws  Unfix 4 screws on the motor cover with  base frame.        11. Disassembly fan motor and fan blade.   ...

  • Page 39: Odu Assembly

    TCL Air Conditioner Service Manual    4.2 ODU Assembly Step Reference picture Before disassembly 1：Remove the PCB Cover , Valve Cover and Top Cover 1). Unfix one screw on the PCB cover, you can take the cover out from unit.
  • Page 40 TCL Air Conditioner Service Manual    Unfix screws btw the top cover with front panel, left and right plate, then you can take the top cover out. 2：Disassemble the Fan Guard and Front Panel 1). Unfix screw btw fan guard and front panel, and take the fan guard out.
  • Page 41 TCL Air Conditioner Service Manual    3：Disassemble the Left and Right side Plate. Unfix screws btw Right Plate and the Electric Box assembly, Valve Plate , Base Plate, then you can take the Right plate out. Unfix screws btw left...
  • Page 42 TCL Air Conditioner Service Manual    5：Disassemble the Electric Box Unfix screw btw Electric Box and motor supporter etc. loosen the wiring clamp, then you can take the control box out. 6：Take out the Noise Cotton Shown as picture to take the cotton out.
  • Page 43 TCL Air Conditioner Service Manual    Unfix the screw btw separate plate and unit, and take it out. 8：Disassemble the 2 and 3-way Valve Unfix screw btw Valve plate and base, you can take the 2-way and 3-way valve out by welding.

  • Page 44: Appendix

    TCL Air Conditioner Service Manual    Unscrew the nuts and take the compressor out. 11：Remove the Fan Motor and motor 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 out by force.

  • Page 45: Appendix 2 The Pipe Length And Gas Charging

    TCL Air Conditioner Service Manual    Appendix 2 The Pipe length and Gas charging Indoor unit Outdoor unit Pipe l ength is Pi pe length is 15 meters Max. 15 meters Max. Indoor unit Outdoor unit Refrigerant piping Additional refrigerant Max.

  • Page 46: Appendix 3 Pipes Flaring

    TCL Air Conditioner Service Manual    Appendix 3 Pipes Flaring Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. A. Cut the pipes and the cable. 1) Use the piping kit accessory or the pipes purchased locally.

  • Page 47: Appendix 4 Thermistor Temperature Characteristics

    TCL Air Conditioner Service Manual    Appendix 4 THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP. Resistance Voltage of TEMP. Resistance Voltage of TEMP. Resistance Voltage of (℃) (k Ohm) resistance (℃)
  • Page 48 TCL Air Conditioner Service Manual    Resistance at 25℃: 5 kΩ. TH1: indoor room temperature sensor and outside air temperature sensor TH2: indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance, disconnect connectors as shown above.  ...

This manual is also suitable for:

Tac-12csd/xab1Tac-18csd/xab1

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