TCL TCC-09C2HRH/DV Service Manual
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TCL TCC-09C2HRH/DV Service Manual

TCL TCC-09C2HRH/DV Service Manual

Inverter air conditioner
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TCL Air Conditioner Service Manual
Inverter air conditioner
Service Manual
Models：
TCC-09C2HRH/DV
TCC-12C2HRH/DV
TCC-18C2HRH/DV
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Summary of Contents for TCL TCC-09C2HRH/DV

  • Page 1 TCL Air Conditioner Service Manual Inverter air conditioner Service Manual Models： TCC-09C2HRH/DV TCC-12C2HRH/DV TCC-18C2HRH/DV...

  • Page 2: Table Of Contents

    TCL Air Conditioner Service Manual CONTENTS Part Ⅰ Technical Information…………………………………...….…………3 1. Important Notice……………………………………………………….………..…………..3 2. The Production Dimensions………………………………………………….…..……….3 3. Refrigeration cycle diagram……………………………………………………………….5 4. Electric Diagram……………………………………………………………….…….……..6 4.1 Wiring Diagram…………………………………………………………………………………….….……..…... 6 5. Electronic Controller Introduction…………………………………….……….…….…..8 5.1 Remote controller…………………………………………….…………………….……………..………. 8 5.2 Electronic controller…………………………………….………………….……………………..…..………..9 5.3 WIFI introduction……………………………………………….……………..…..…..…….…………….……..16 PART Ⅱ...

  • 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 TCL Air Conditioner Service Manual Outdoor unit Model 48.5 TCC-09C2HRH/DV 48.5 TCC-12C2HRH/DV TCC-18C2HRH/DV...

  • Page 5: Refrigeration Cycle Diagram

    TCL Air Conditioner Service Manual 3. Refrigeration cycle diagram Heat pump 9K,12K,18K 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 Liquid side 2-way valve...

  • Page 6: Electric Diagram

    TCL Air Conditioner Service Manual 4. Electric Diagram 4.1 Wiring diagram INDOOR UNIT： MODEL： TCC-09C2HRH/DV，TCC-12C2HRH/DV，TCC-18C2HRH/DV θ PIPE TEMPERATURE REMITE MONITOR θ ROOM TEMPERATURE (OPTIONAL PART) SWING MOTOR 2 CN12 POSITION SWITCH WI-FI CN16 GNYE (OPTIONAL PART) GNYE DISPLAY CN8B OUTDOOR...
  • Page 7 TCL Air Conditioner Service Manual MODEL：TCC-18C2HRH/DV θ θ θ...

  • Page 8: Remote Controller

    Air Conditioner Service Manual 5. Operation Details 5.1 Remote controller ON/OFF button To switch the conditioner on and off. MODE button To select the mode of operation SWING button To activate the swing of horizontal flap(up/down) or deactivate it. TEMP DOWN button Decrease the temperature or time by 0.5 unit.
  • Page 9 TCL Air Conditioner Service Manual Remote controller DISPLAY Meaning of symbols on the liquid crystal display. FEEL mode indicator or AUTO COOLING indicator or COOL DEHUMIDIFYING indicator or DRY FAN ONLY OPERATION indicator or FAN HEATING indicator or HEAT SIGNAL RECEPTION indicator...

  • Page 10: Electronic Controller

    TCL Air Conditioner Service Manual 5.2 Electronic controller RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT---Outdoor Pipe Temperature. OAT---Outdoor Ambient Temperature. ODT---Outdoor Discharge 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 11 TCL Air Conditioner Service Manual c. to the set temperature. After compressor ceased, the fan motor stops working according to the temperature of OPT and OAT, the max delay for the motor should be less than 160s. 2). When switch on unit on cooling mode, ODU fan motor will delay 5s after compressor starts up.
  • Page 12 TCL Air Conditioner Service Manual a. ST-CRT≤－3℃ and compressor keeps 2 min continuously; or b. ST-CRT≤－2℃ and compressor works in lowest frequency for 5 min continuously; or c. RT-CRT≤－1℃ and compressor works in lowest frequency for 10 min continuously, The compressor stops operation.
  • Page 13 TCL Air Conditioner Service Manual When AC unit working to: a. t1≥t2, or b. t3≤t1＜t2. and also the temperature (related to OAT & OPT) tested 3 min continuously meets for defrosting. 1) Defrosting start up: Compressor stops working, and re-starts to working after 50s delay;...
  • Page 14 TCL Air Conditioner Service Manual 3. ODU always OFF. ℃ δt goes up δt comes down 4℃ High fan Mid fan 2℃ Low fan 5.2.6 Timer The unit has times control, when the unit meet the timer preset, it will be switched on or off automatically.
  • Page 15 TCL Air Conditioner Service Manual 5.2.10 Protection 5.2.10.1 Overload protection 1. Overload protection for Cooling or Dry mode 1). if: a. OPT≥62℃, unit stops working for overload protection. b. OPT＜55℃, after compressor stopped for 3 min, can the unit be started to operate.
  • Page 16 TCL Air Conditioner Service Manual 5.2.10.4 IPM overheating protection 1. When IPM temperature T ≥87℃, the compressor will be frequency limited / reduced for IPM over temperature protection. 2. When T ≥95℃, the AC unit stops working for AC system protection.

  • Page 17: 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 18 TCL Air Conditioner Service Manual Improper installation may lead to fire hazard, explosion, electric shock or injury. Safety precautions for Installing and Relocating the unit. To ensure safety, please be mindful of the following precautions. Warnings When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
  • Page 19 TCL Air Conditioner Service Manual 2) R32/R290 air conditioner installation area requirement m1=(4m )×LFL, m2=(26m ) ×LFL, m3=(130m ) ×LFL Where LFL is the lower flammable limit in kg/m , R290 LFL is 0.038kg/m , R32 LFL is 0.306kg/m For the appliances with a charge amount m1<M<m2: The maximum charge in a room shall be in accordance with the flowing: M =2.5×(LFL)
  • Page 20 TCL Air Conditioner Service Manual When filling the combustible refrigerant, any of your rude operations may cause serious injury or  injuries to human body or bodies and object or objects. A leak test must be done after the installation is completed.
  • Page 21 TCL Air Conditioner Service Manual Special tools: Tool Name Requirement(s) for Use It should be an explosion-proof vacuum pump; can ensure certain precision Mini Vacuum and its vacuum degree should be lower than 10Pa. Pump It should be a special explosion-proof filling device; have certain precision and its filling deviation should be less than 5g.
  • Page 22 TCL Air Conditioner Service Manual  It is necessary to ensure that the air conditioner is in reliable ground connection before maintenance.  Make sure powered supply to air conditioner is off. Before maintenance, it is necessary to cut off the power and discharge the capacitor power which used in the air conditioner.
  • Page 23 TCL Air Conditioner Service Manual  It is necessary to provide firefighting devices such as dry powder or carbon dioxide fire extinguisher appropriate for extinguishing the electrical fire and keep such firefighting devices in a usable condition.  Temporary wires and sockets are prohibited on the maintenance location.

  • Page 24: Installation

    TCL Air Conditioner Service Manual A maintenance station should establish emergency handling plans. It is necessary to take appropriate precautionary measures in work. For example, it is prohibited to enter the location with any kindling material and it is prohibited to wear clothing or shoes which easily produce static.

  • Page 25: Indoor Unit Installation

    TCL Air Conditioner Service Manual More than 30cm More than 60cm (Service space) More than 30cm More than 60cm More than 200cm 2.2 Indoor Unit Installation...
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  • Page 31: Outdoor Unit Installation

    TCL Air Conditioner Service Manual 2.3 Outdoor Unit Installation 2.3.1 Service Space for Outdoor Unit NOTE: The minimum distance between the outdoor unit and walls described in the installation guide does not apply to airtight rooms. Be sure to keep the unit unobstructed In at least two of the three directions (Front, Left, Right).

  • Page 32: Drainage Pipe Installation

    TCL Air Conditioner Service Manual 2.4 Drainage Pipe Installation Install the drainage pipe as shown below and take measures against condensation. Improperly installation could lead to leakage and eventually wet furniture and belongings. 2.4.1 Installation Principle  Ensure at least 1/100 slope of the drainage pipe ...
  • Page 33 TCL Air Conditioner Service Manual PVC50 1440 PVC63 2760 PVC75 5710 PVC90 8280 Attention: Adopt PVC40 or bigger pipe to be the main pipe. 2. Install the drain hose with downward gradient (1/50 to 1/100) and no risers or traps are used for the hose .
  • Page 34 TCL Air Conditioner Service Manual Drainage pipe Drainage pipe Drain tee Drainage pipe Water flow Water flow Water flow Water flow Water flow Drain tee Drain tee Water flow Water flow Water flow Water flow Branch pipe Water flow Water flow...
  • Page 35 TCL Air Conditioner Service Manual 1) Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leakage due to dew condensation. (1) Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leakage due to dew condensation.

  • Page 36: Drainage Test

    TCL Air Conditioner Service Manual Blowhole Indoor unit Indoor unit Plug Plug 11. Using a 65-mm (2.5")core drill, drill a hole in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 12mm (0.5") This will ensure proper water drainage (as shown).

  • Page 37: Refrigerant Pipe Installation

    TCL Air Conditioner Service Manual of the length of drainage pipe, water shall be discharged about 1 minute delayed) 2.3 Stop the operation of air conditioner, power off the power supply and put the cover of water test hole back to the original place.
  • Page 38 TCL Air Conditioner Service Manual 2.6.2.2 If the Outdoor Unit Is Installed Higher than the Indoor Unit: It is recommended that vertical suction risers not be upsized. Proper oil return to the compressor shouId be maintained with suction gas velocity. If velocities drop below 7.62m/s(1 500fpm (feet per minute)), oil return will be decreased.
  • Page 39 TCL Air Conditioner Service Manual  According to the following table to flare the pipe Flare dimension A (mm) Pipe diameter Flare shape 90 ° 4 1/4" (6.35) 3/8" (9.52) 12.0 12.4 R0.4~0.8 1/2" (12.7) 15.4 15.8 5/8" (15.9) 18.6 19.1...
  • Page 40 TCL Air Conditioner Service Manual  For vertical refrigerant pipe, the distance between supporters should not be exceed 1.5m. 2.6.3.13 Connect the Pipe to Indoor Unit and Outdoor Unit by Using Two Spanners. NOTE: Connect the copper pipes to the indoor unit first, then connect it to the outdoor unit. You should first connect the low-pressure pipe, then the high-pressure pipe.

  • Page 41: Vacuum Drying And Leakage Detection

    TCL Air Conditioner Service Manual 2.7 Vacuum Drying and Leakage Detection 2.7.1 Safety Precautions ● Use a vacuum pump with a gauge reading lower than -0.1 MPa and an air discharge capacity above 40L/min. ● The outdoor unit does not need vacuuming. DO NOT open the outdoor unit's gas and liquid stop valves.

  • Page 42: Additional Refrigerant Charge

    TCL Air Conditioner Service Manual NOTE: When opening valve stems, turn the hexagonal wrench until it hits against the stopper. DO NOT try to force the valve to open further. 2.7. 3 Leakage Detection 1).With leakage detection. Check if there is leakage with leakage detection.

  • Page 43: Electricity And Wiring

    TCL Air Conditioner Service Manual  The thickness of insulation layer shall be above 10mm.If in hot or wet environment place, the layer of insulation should be thicker accordingly. 2.9.1.4 Installation Highlights of Insulation Construction  Gas pipe and liquid pipe shall be insulated separately, if the gas pipe and liquid pipe were insulated together;...

  • Page 44: Maintenance

    TCL Air Conditioner Service Manual 3. Maintenance 3.1 Failure code Code Reason Remark IDU & ODU Communication failure The IDU & ODU wiring connection correct? IDU Room Temperature sensor failure.（IDU IDU sensor and PCB. RT failure） IDU Coil temperature sensor failure.（IDU IPT IDU sensor and PCB.
  • Page 45 TCL Air Conditioner Service Manual Electric Power test module failure. （IDU Querying by press remote controller failure） Discharge temperature sensor failure Please check the troubleshooting for detail. PROTECTION. ODU coil temperature failure PROTECTION.. Please check the troubleshooting for detail. Cooling system gas flow abnormal Please check the troubleshooting for detail.

  • Page 46: Trouble Shooting

    TCL Air Conditioner Service Manual 3.2 Trouble shooting 3.2.1 E0 ---IDU & ODU communication failure Start Display E0 IDU wiring Check and re- E0 disappear? connection correct ? connect Check communication Replace/ re- E0 disappear? wiring and the connection, connect...
  • Page 47 TCL Air Conditioner Service Manual 3.2.2 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 sensor, is it open or...
  • Page 48 TCL Air Conditioner Service Manual 3.2.3 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off condition Adjust the motor and blade Can the fan blades run assembly so that rotor can smoothly? run smoothly.
  • Page 49 TCL Air Conditioner Service Manual 3.2.4 E3, E7 or E8----ODU Coil temperature sensor, Ambient temperature sensor or Discharge temperature sensor failure. When any of the sensor resistance open or short circuit , unit will display failure code as E3/E7 or E8, IDU and ODU turns off.
  • Page 50 TCL Air Conditioner Service Manual 3.2.5 E9---ODU IPM /Compressor drive fault If unit have 6 times stopping works for IPM protection (P0) continuously, it will display E9 error, and unit can’t be recovered to operation, except press ON/OFF button. Display E9...
  • Page 51 TCL Air Conditioner Service Manual 3.2.6 EF---ODU DC fan motor failure Shut off Check the fan blade by Re install the DC motor hand, can it rotate freely Works normal? Fan motor well Re-connect connect to PCB Works normal? 1. For built-in control (5pins)
  • Page 52 TCL Air Conditioner Service Manual 3.2.7 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 Check while voltage...
  • Page 53 TCL Air Conditioner Service Manual 3.2.8 P0---IPM protection When overheat or overcurrent for IPM, AC unit will display P0protection. Display P0 Restart unit. It works normal? Wiring connection Re-connect U/V/W correct? P0 disappear? ODU fan motor no Replace ODU Can compressor...
  • Page 54 TCL Air Conditioner Service Manual 3.2.9 P1--- Over / under voltage protection 1. Test voltage between L &N, When the power supply V＞AC260V or V＜AC150V, AC will display P1 protection, unit will recover back to previous status while V＞AC155V. 2. 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...
  • Page 55 TCL Air Conditioner Service Manual 3.2.10 P2---Over Current protection When the AC unit running current more than I , it will stop and display P2 protection. Note: for different AC model, I has difference valve. Display P2 ODU fan motor...
  • Page 56 TCL Air Conditioner Service Manual 3.2.11 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature Normal protection higher than 60℃? ODU location Adjust ODU Enough space for Unit operate? acceptable? installation ventilation? Condenser too Clean IDU filter or P4 disappear? dirty? or filter ODU condenser.
  • Page 57 TCL Air Conditioner Service Manual 3.2.12 P5---Sub-cooling protection on Cooling/Dry mode On Cooling or Dry mode, when IDU evaporator coil temperature IPT＜1℃ continuously for 3 min after compressor start up for 6 min, CPU will switch off outdoor unit and show P5 failure code.
  • Page 58 TCL Air Conditioner Service Manual 3.2.13 P6---Overheating protection on Cooling mode On Cooling or Dry mode, when ODU condenser coil temperature OPT≥62℃ , MCU will switch off outdoor unit and show P6 failure code. Display ODU fan motor Fan motor...
  • Page 59 TCL Air Conditioner Service Manual 3.2.14 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 Fan motor...
  • Page 60 TCL Air Conditioner Service Manual 3.2.15 P8---Outdoor Overtemperature/Under-temperature protection When environment temperature as below condition, the compressor will stop working, after 200s delay, the IDU will show P8 failure code. (1). On Cooling or Dry mode: ODU ambient temperature: OAT＜-20℃ or OAT＞63℃;...
  • Page 61 TCL Air Conditioner Service Manual 3.2.16 F4---Cooling system Gas flow abnormal protection When compressor startup, unit will check the variation 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.
  • Page 62 TCL Air Conditioner Service Manual 3.2.17 F6 The Compressor Lack of phase / Anti-phase protection. If ODU PCB can’t test one, or even three phase of compressor current, it will show F6 protection. Display F6 Check compressor Re-connect wiring connector, is...
  • Page 63 TCL Air Conditioner Service Manual 3.2.18 F7---Module temperature protection. IPM overtemperature protection, when IPM temperature more than 95℃, it will show F7. Display F7 Clean or adjust the gap IPM well contact Any dust or gap btw btw IPM and heat sink to heat sink? IPM &...
  • Page 64 TCL Air Conditioner Service Manual 3.2.19 F8---4-Way Value Reversing abnormal On heating mode, if IDU Coil temperature tested lower than Room temperature 5℃ or even more after compressor works for 8min, unit will show F8 code. Display F8 the 4-way valve...
  • Page 65 TCL Air Conditioner Service Manual 9.2.20 Fy--- Gas leakage protection After compressor works in high frequency for 9 min, if the temperature on IDU evaporator & ODU condenser has only a little variation comparing previous, but, the compressor discharge temperature on high level, then the unit will show Fy failure code.

  • Page 66: Exploded View

    TCL Air Conditioner Service Manual 4. Exploded view and parts list IndoorUnit: TCC-09C2HRH/DV,TCC-12C2HRH/DV, TCC-18C2HRH/DV Q’ty Part No. Part Name Remark 45014-001266 Front Panel 46601-000037 Face Frame Assembly 45008-000018 Downward Vane Assembly 45801-000100 Downward Vane 45002-000084 Downward Vane Bush 45008-000286 Downward Out Blow Casing...
  • Page 67 TCL Air Conditioner Service Manual 22001-000494 Step Motor 45005-000179 Fixed seat with wind motor 45002-000088 Motor Vane Bush 45005-000331 Air Guide Splash motor cover 35010-000002 Display panel 41505-000323 Display Film 35006-000001 Buckle base 46701-000003 Buckle cover 45014-002709 Air filter 45004-000231...
  • Page 68 TCL Air Conditioner Service Manual Outdoor Unit : TCC-09C2HRH/DV Q’ty Part No. Part Name Remark 42011-000127 Back Grille 41207-000029 Top cover 92011-000657 Condenser 41203-000054 Outdoor motor supporter 22001-000049 Outdoor motor 42004-000107 Propeller fan 41205-000133 Left grille supporter 41206-000054 Front plate...
  • Page 69 TCL Air Conditioner Service Manual Outdoor Unit : TCC-12C2HRH/DV Q’ty Part No. Part Name Remark 42011-000127 Back Grille 41207-000029 Top cover 92011-000657 Condenser 41203-000054 Outdoor motor supporter 22001-000049 Outdoor motor 42004-000107 Propeller fan 41205-000133 Left grille supporter 41206-000054 Front plate...
  • Page 70 TCL Air Conditioner Service Manual Outdoor Unit : TCC-18D2HRH/DV Q’ty Part No. Part Name Remark 42011-000105 Back Grille 41207-000033 Top cover 92011-005200 Condenser 41203-000052 Outdoor motor supporter 22001-000096 Outdoor motor 42004-000104 Propeller fan 41205-000130 Left grille supporter 41206-000055 Front plate...

  • Page 71: Appendix

    TCL Air Conditioner Service Manual APPENDIX Appendix 1 The comparison table of Celsius-Fahrenheit temperature Fahrenheit Fahrenheit Fahrenheit diplay Fahrenheit Celsius diplay Fahrenheit Celsius diplay Fahrenheit Celsius temperature temperature temperature (℉) (℃) (℉) (℃) (℉) (℃) (℉) (℉) (℉) 60.8 69/70 69.8...
  • Page 72 TCL Air Conditioner Service Manual D. Check 1) Compare the flared work with figure below. 2) If flare is noted to be defective, cut off the flared section and do flaring work again. Appendix 3 THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP.
  • Page 73 TCL Air Conditioner Service Manual 14.871 3.723 2.494 1.642 0.615 0.538 14.212 3.680 2.410 1.604 0.598 0.525 13.586 3.635 2.328 1.567 0.582 0.512 12.991 3.590 2.250 1.530 0.566 0.499 12.426 3.545 2.174 1.495 0.550 0.487 11.889 3.499 2.102 1.459 0.535 0.475...
  • Page 74 TCL Air Conditioner Service Manual 117.3 131.3 146.8 9.986 10.63 11.31 1.54 1.596 1.653 111.3 124.4 10.21 10.85 1.493 1.549 1.604 105.6 131.7 9.231 9.813 10.42 1.448 1.502 1.558 100.3 111.9 124.7 8.878 9.43 1.404 1.458 1.512 95.24 106.2 118.2 8.54...
  • Page 75 TCL Air Conditioner Service Manual R—Resistance Resistance at 25℃:20 kΩ TH3: Outdoor unit discharge pipe sensor Before measuring resistance, disconnect connectors as shown above.

This manual is also suitable for:

Tcc-12c2hrh/dvTcc-18c2hrh/dv

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