TCL TAC-09CHSD/FBI Service Manual

Inverter air conditioner

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Air Conditioner Service Manual

Inverter air conditioner

Service Manual

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TAC-09CHSD/FBI

TAC-12CHSD/FBI

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Summary of Contents for TCL TAC-09CHSD/FBI

Page 1 Air Conditioner Service Manual Inverter air conditioner Service Manual Models TAC-09CHSD/FBI TAC-12CHSD/FBI...
Page 2 Air Conditioner Service Manual CONTENTS Part Ⅰ Technical Information .......................... 3 1. Important Notice ..............................3 2. Product Dimensions ............................4 3. Refrigeration cycle diagram ..........................5 4.Electric Diagram ..............................6 4.1 Wiring diagram ............................... 6 4.2 PCB LAOUT ..............................7 5.Electronic Controller Introduction ........................
Page 3 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 Air Conditioner Service Manual 2. Product Dimensions Indoor Unit: Outdoor Unit: Indoor unit Outdoor unit Model...
Page 5 Air Conditioner Service Manual 3. Refrigeration cycle diagram Heat pump 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...
Page 6 Air Conditioner Service Manual 4.Electric Diagram 4.1 Wiring diagram MODEL: 09K、12K INDOOR UNIT： OUTDOOR UNIT...
Page 7 Air Conditioner Service Manual 4.2 PCB LAOUT Indoor PCB ODU AC power output Fuse ODU AC power input ODU power supply IDU power input DC motor driver IDU/ODU wiring connection-N connector Power supply-N connector WIFI connector IDU/ODU communication wiring Display Bottom view Fresh fan swing connector...
Page 8 Air Conditioner Service Manual Outdoor unit Top view 4-way valve Heater L, N & Communication Fuse ODU PCB Mainly relay DC FAN Motor connector Electronic expansion valve Discharge sensor connector Discharge/OAT/OPT sensor connector LED5 Bottom view Note: OAT: Outdoor Ambient Temperature OPT: Outdoor pipe temperature...
Page 9 Air Conditioner Service Manual 5.Electronic Controller Introduction 5.1 Remote controller Meaning Symbols Battery indicator Auto Mode Cooling Mode Dry Mode Fan only Mode Heating Mode ECO Mode Timer Temperature indicator Fan speed: Auto/ low/ low-mid/ mid/ mid-high/ high Mute function TURBO function Up-down auto swing Left-right auto swing...
Page 10 Air Conditioner Service Manual Note : If the remote controller is cooling only, you can press MODE button for 5 seconds when the remote controller off. If the unit display fahrenheit degree, you can press TURBO button for 5 seconds change to centigrade degree.
Page 11 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 TIMER OFF indicator TIMER ON indicator AUTO FAN indicator...
Page 12 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 13 Air Conditioner Service Manual 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. 4. When ODU failure or stops for protection, IDU works as preset. Anti-frosting protection Control the unit operation frequency and the frequency changing rate to achieve anti-frosting protection.
Page 14 Air Conditioner Service Manual 3). The compressor frequency control: Based on relation of RT & ST, and the changing speed of RT. 4). The compressor will also stop working while unit: a. switched off. b. under protection. c. changed to fan mode. 5).
Page 15 Air Conditioner Service Manual 6. Defrost Note: t1: compressor continuous works time. t2: AC unit operation first time going to defrost circle. t3: compressor accumulated working time (when OPT≤3℃ unit starts to count the time for t3). When AC unit working to: a.
Page 16 Air Conditioner Service Manual 5.2.5 Fan mode 1. The temperature setting: 16~31℃, Fan speed and vane position: as preset. The function for remote controller 58E only. 2. For above function, when unit preset to be auto fan mode, the fan motor will change its operation speed based on the temperature difference of ambient and preset temperature.
Page 17 Air Conditioner Service Manual 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 AUTO-RESTART will be activated. 5.2.10 Protection 5.2.10.1 Overload protection 1.
Page 18 Air Conditioner Service Manual working protection will be reset to zero and re-start a new counting process. Note: For different models, I and I have different programmed value. 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.
Page 19 When a VOC fault occurs, the color of the light ring is fixed and displayed in full white. 5.3 WIFI OPERATION MAUAL 5.3.1 The WIFI control logic CLOUD Internet controller Home wireless router TCL AC IDU WIFI module IDU PCB Remote controller...
Page 20 Air Conditioner Service Manual 5.3.2 Download and installation...
Page 21 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 22 Air Conditioner Service Manual 5) Use equipped components or appointed components during installation. 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. To ensure safety, please be mindful of the following precautions.
Page 23 Air Conditioner Service Manual Introduction R32, R290 air conditioner installation 1) Introduction to Refrigerants R32 & R290 The refrigerants used for air conditioners are environmentally friendly hydrocarbons R32 and R290. The two kinds of refrigerants are combustible and odorless. Moreover, they can burn and explode under certain condition.
Page 24 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 25 Air Conditioner Service Manual 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 ...
Page 26 Air Conditioner Service Manual leak detector must be working during maintenance. 2) Inspection of air conditioner  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 27 Air Conditioner Service Manual  Temporary wires and sockets are prohibited on the maintenance location. 6). Requirements for fill the refrigerants  It is necessary to use nitrogen to clear the cyclic system before operating the refrigerating system and vacuumize the outdoor unit for 30 minutes at least. ...
Page 28 Air Conditioner Service Manual call, set the emergency area and prohibit irrelevant personnel and vehicles from approaching.  The professional firefighters should wear anti-static clothing to handle the emergency on the site and cut off the source of leak. It is necessary to use nitrogen for blowing the site, especially the low-lying positions, clear away the ...
Page 29 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 30 Air Conditioner Service Manual 2.2 Accessory Remote controller Batteries Screw Vinyl tape Efficient purification Attachment joint Pressure tube plate Through-wall filter pipe assembly Threaded fresh air pipe Hole cover Drain hose Insulation material Wall cover Sealant Adapters 2.3 Tools Picture Picture Picture Tool name...
Page 31 Air Conditioner Service Manual 1） Must follow the electric safety regulations when 2.4 Position installing the unit. Indoor unit 2） According to the local safety regulations, use  Install the indoor unit level on a strong wall that is qualified power supply circuit and air switch. not subject to vibrations 3）...
Page 32 Air Conditioner Service Manual 9K,12K requirements. For the special installation of the back pipe, drill two 5).The cable connecting the outdoor and indoor units standard wall holes (diameter 63mm) side by side must be suitable for outdoor use. with a width of 105mm side by side as shown in the 6).The plug must be accessible also after the appliance following figure has been installed so that it can be pulled out if...
Page 33 Air Conditioner Service Manual Wrap the area which accommodates the rear piping pipe by unwinding it gently as shown in the housing section with vinyl tape. picture. Extending the rolled pipe  Bundle the piping and drain hose together by 2.6.5 Connections to the indoor unit wrapping them with vinyl tape over the range 1).Remove the indoor unit pipe cap (check that there...
Page 34 Air Conditioner Service Manual 2.6.7 Connecting Fresh Air Pipe including the fresh air pipe and soft joints. 1. According to the wall hole position, select the 3. Adjusting the length of the fresh air pipe assembly appropriate piping mode. According to the installation environment, determine to Mode1: Left, together with refrigerant piping ,the adjust the length of fresh air pipe assembly.
Page 35 Air Conditioner Service Manual space, protect and insulate them, it must be bundle 2. Hook the top of indoor unit on the mounting plate. with insulating tape before passing them through 3. Apply slight pressure to the left and right sides of the the wall hole.
Page 36 Air Conditioner Service Manual 2.7 ODU Installation ● The outdoor unit should be installed on a solid wall and fastened securely. Screw ● The following procedure must be observed before connecting the pipes and connecting cables : Remove the upper cover decide which is the best position on the wall and leave enough space to be able to carry out Outdoor unit...
Page 37 Air Conditioner Service Manual 2.9 Final test 1 Preparation of test operation.  The client approves the air conditioner installation.  Specify the important notes for air conditioner to the client. 2 Method of test operation  Put through the power, press ON/OFF button on the remote controller to start operation.
Page 38 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 39 Air Conditioner Service Manual PFC PROTECTION Please check the troubleshooting for detail. The Compressor lack of phase / Anti-phase Please check the troubleshooting for detail. PROTECTION. IPM Module temperature PROTECTION Please check the troubleshooting for detail. 4-Way Value reversing abnormal.. Please check the troubleshooting for detail.
Page 40 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 in good condition? ODU wiring Check and re- E0 disappear?
Page 41 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 short circuit? The malfunction eliminated?
Page 42 Air Conditioner Service Manual 3.2.3 E4 --- AC Cooling system abnormal (Gas not enough) Start Display E4 Check the pressure AC pressure correct? Check the sensor short or (cooling:0.8-1.3Mpa,/ open? heating 2.0-3.6Mpa) Replace the sensor Check the valves open or Replace the main PCB Open the valves Lower than 0.8 Mpa in...
Page 43 Air Conditioner Service Manual 3.2.4 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 44 Air Conditioner Service Manual 3.2.5 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 45 Air Conditioner Service Manual 3.2.6 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 Display F9 or FA first Replace ODU PCB then E9...
Page 46 Air Conditioner Service Manual 3.2.7 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) motor: check the V =310V? =15V?
Page 47 Air Conditioner Service Manual 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 Check while voltage terminal L/N, more than become normal 50V~? Unit works?
Page 48 Air Conditioner Service Manual 3.2.9 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 works or too slowly? fan motor start up?
Page 49 Air Conditioner Service Manual 3.2.10 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 Display P1 Wait until the AC...
Page 50 Air Conditioner Service Manual 3.2.11 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 Replace fan motor works? P2 disappear? IDU filter or ODU...
Page 51 Air Conditioner Service Manual 3.2.12 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature Normal protection higher than 60℃? ODU location Adjust ODU Enough space for Unit operate? installation acceptable? ventilation? Condenser too Clean IDU filter or P4 disappear? dirty? or filter ODU condenser.
Page 52 Air Conditioner Service Manual 3.2.13 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. Display P5 Switch on unit after minutes...
Page 53 Air Conditioner Service Manual 3.2.14 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 Replace fan motor works normal? broken? P6 disappear?
Page 54 Air Conditioner Service Manual 3.2.15 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 Replace fan motor works normal? broken?
Page 55 Air Conditioner Service Manual 3.2.16 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℃; (2).
Page 56 Air Conditioner Service Manual 3.2.17 P9---The compressor driving protection (the compressor load abnormal) When compressor start up or in the process of operation, if: (1). MCU can’t test the feedback signal from compressor, or (2). Tested a abnormal signal from compressor, or (3).
Page 57 Air Conditioner Service Manual 3.2.18 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. Start Display F4 Check the 2-way...
Page 58 Air Conditioner Service Manual 3.2.19 F5---PFC Protection PFC Overcurrent protection F5 Code Check the power supply, Display F5 by is it abnormal? (this is random? normal protection) Display F5 frequently Switch off the unit for 3 Still F5? minutes and re-switch on Still F5? Replace ODU PCB...
Page 59 Air Conditioner Service Manual 3.2.20 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 it well connected? Problem solved? The Compressor...
Page 60 Air Conditioner Service Manual 3.2.21 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 61 Air Conditioner Service Manual 3.2.22 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 wiring connection Re-connect correct?
Page 62 Air Conditioner Service Manual 3.2.23 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 63 Air Conditioner Service Manual 4. Disassembly IDU & ODU 4.1. IDU Disassembly Step Reference photo 1. Before disassembly The original status. 2. Disassembly front panel A. Open the front panel B. Release panel axis slightly by hand and take the panel out from unit.
Page 64 Air Conditioner Service Manual 4. Remove the Louver Slide a shaft to the right, remove the Louver(keep the shaft on the base after removing the Louver) 5. Remove the Filter Remove the Filter shown as arrows (Two holding buttons on the filter help you easily to take it out)
Page 65 Air Conditioner Service Manual 6.Disassemble the Middle Frame and display board. A. Remove the 6 screws on the Mid frame shown as photo, B. Take the Mid Frame Upside to loosen the Frame Locker 1 (totally 5 lockers) along with the direction shown as arrow.
Page 66 Air Conditioner Service Manual 8. Disassembly the Lifting structure A. take the wires of Lifting structure out from middle frame. B. Push AIR-Fresh Assembly from the inside of the middle frame to the top in the direction shown as the arrow. C.
Page 67 Air Conditioner Service Manual 10. Disassembly the Electric box A. Unfix screw btw Electric Box and Unit Base. B. Unfix the screw of Earth ground to Evaporator, and take the Copper Pipe Sensor out. C. Take the Electric Box out from unit.
Page 68 Air Conditioner Service Manual A. Unfix 2 screws of Evaporator left side, 1 screw on the right side. B. Loosen EVP left side locker, and lift EVP left up. C. While EVP left side up, it’s easily to take EVP out from right locker.
Page 69 Air Conditioner Service Manual Remove the fixing Screw btw the cross-flow fan and fan motor, then take the cross-flow fan and fan motor out separately.
Page 70 Air Conditioner Service Manual 4.2 ODU Assembly Step Reference picture step1：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. 2). Unfix one screw on the valve cover, you can take it out easily.
Page 71 Air Conditioner Service Manual ODU middle separate plate and base plate, uplift front panel you can take it out from unit. step3：Disassemble the Left and Right plate. Unfix screws btw Right Plate and the Electric Box assembly, Valve Plate , Base Plate, then you can take the Right plate out.
Page 72 Air Conditioner Service Manual step4：Disassemble the Axis Fan Blade 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 take the control box out.
Page 73 Air Conditioner Service Manual step7：Disassemble the separate plate Unfix the screw btw separate plate and unit, and take it out step8：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 74 Air Conditioner Service Manual step10：Disassemble the compressor. Unscrew the nuts and take the compressor out. 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 out by force.
Page 75 Air Conditioner Service Manual APPENDIX Appendix 1 The comparison table of Celsius-Fahrenheit temperature Fahrenheit Fahrenheit Fahrenheit Celsius Celsius Celsius diplay Fahrenheit diplay Fahrenheit diplay Fahrenheit temperature ℃ temperature ℃ temperature ℃ (℉) (℉) (℉) (℉) (℉) (℉) 60.8 69/70 69.8 78/79 78.8 62/63...
Page 76 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. 2) Measure the distance between the indoor and the outdoor unit.
Page 77 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 (k Ohm) resistance...
Page 78 Air Conditioner Service Manual 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. Outdoor unit sensor temperature characteristics TEMP. R min R(t) R max TEMP.
Page 79 Air Conditioner Service Manual 63.74 70.48 77.87 6.309 6.655 7.013 1.073 1.12 1.168 60.69 67.05 6.08 6.409 6.748 1.042 1.089 1.136 57.81 63.8 70.34 5.861 6.173 6.495 1.013 1.058 1.104 55.08 60.72 66.88 5.651 5.947 6.253 0.9833 1.028 1.074 52.49 57.81 63.61 5.449...

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Tac-12chsd/fbi