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TCL Air Conditioner Service Manual

 

 

61 

 

 

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. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start 

Display F4 

Open the valve 

No   

End 

Check the 2-way 

valve and 3-way 

valve opened

？

 

No 

Yes 

No 

F4 disappear? 

The

 IPT

 sensor 

open or short? 

Replace the sensor 

Yes 

Yes 

No 

Содержание TCC-09C2HRH/DV

Страница 1: ...TCL Air Conditioner Service Manual 1 Inverter air conditioner Service Manual Models TCC 09C2HRH DV TCC 12C2HRH DV TCC 18C2HRH DV...

Страница 2: ...PART Installation and Maintenance 17 1 Notes for installation and maintenance 17 2 Installation 24 2 1 Location Selection 24 2 2 Indoor Unit Installation 25 2 3 Outdoor Unit Installation 29 2 4 Draina...

Страница 3: ...responsible for the interpretation of this information nor can it assume any liability in connection with its use The information specifications and parameter are subject to change due to technical mo...

Страница 4: ...ir Conditioner Service Manual 4 Model Outdoor unit D E F G H I J K TCC 09C2HRH DV 712 498 234 415 291 225 48 5 52 TCC 12C2HRH DV 712 498 234 415 291 225 48 5 52 TCC 18C2HRH DV 780 605 290 516 349 314...

Страница 5: ...e 3 way valve Compressor 4 way valve Muffler Muffler Heat exchange Condenser Heat exchange Evaporator Check valve Cooling Heating Capillary 24K Liquid side 2 way valve Gas side 3 way valve Compressor...

Страница 6: ...B DISPLAY CN6 ROOM TEMPERATURE CN5 2 DC FAN MOTOR PCB SWING MOTOR 2 CN5 1 SWING MOTOR 1 OPTIONAL PART CN9 OPTIONAL PART PIPE TEMPERATURE 81102 015585 GND A B 12V G A B REMITE MONITOR CN12 POSITION SWI...

Страница 7: ...TCL Air Conditioner Service Manual 7 MODEL TCC 18C2HRH DV PCB EEV...

Страница 8: ...ng of horizontal flap up down or deactivate it CLEAN button ON OFF button TURBO button 9 SWING button To activate the swing of vertical flap left right or deactivate it 9 10 To active this function pr...

Страница 9: ...r or or LOW FAN SPEED indicator 11 or or or or or MIDDLE FAN SPEED indicator 12 or or or or HIGH FAN SPEED indicator 13 or or or SLEEP indicator 14 COMFORTABLE SLEEP indicator optional 15 FEEL indicat...

Страница 10: ...etween RT and ST shown as table Mode t RT ST COOLING t 1 FAN 1 t 1 HEATING t 1 5 2 2 Cooling mode 1 Temperature control 16 31 and the operation of fan speed and vane position according to preset 2 Com...

Страница 11: ...l Frequency Decreasing NFD If 3 IPT 4 the frequency decreasing rate is 8Hz 90s until to the lower frequency limit 4 Fast Frequency Decreasing FFD If 2 IPT 3 the frequency decreasing rate is 16Hz 90s u...

Страница 12: ...ture of OPT and OAT the max delay for the motor should be less than 160s 2 When switch on unit on heating mode ODU fan motor will delay 5s after compressor starts up 3 in the process of defrosting the...

Страница 13: ...or operation within 2min if IPT 27 fan motor works in low speed 2 min then change to preset speed When RT 24 a Within 2 min after compressor start up working once IPT 27 fan motor will change to prese...

Страница 14: ...cording to the SLEEP CURVE as designed Sleeping mode the unit can work 10 hours continuously after that it will quit from this mode and work as previous presetting 5 2 8 Emergency switch When the EMER...

Страница 15: ...ately once the unit to be switched off on fan mode or changed to be heating mode from others Note If the defective failure can t be recovered the failure can t eliminate even if operation mode changed...

Страница 16: ...eliminate immediately once the unit to be switched off or changed to fan mode Note If the defective failure can t be recovered the failure can t eliminate even if operation mode changed 5 2 11 Comple...

Страница 17: ...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...

Страница 18: ...ssure rise and then compressor overheat or gas leak resulting in injury 5 When installing the unit make sure that connecting pipe is securely connected before the compressor starts running If compress...

Страница 19: ...0 14 0 18 1 0 08 0 11 0 03 0 06 0 09 0 2 0 3 1 8 0 15 0 2 0 24 0 29 0 34 0 41 0 53 2 2 0 18 0 24 0 29 0 36 0 41 0 51 0 65 R32 0 306 0 6 0 68 0 9 1 08 1 32 1 53 1 87 2 41 1 1 14 1 51 1 8 2 2 2 54 3 12...

Страница 20: ...lling an air conditioner of R32 R290 it is necessary to take appropriate anti static measures such as wear anti static clothing and gloves It is necessary to choose the location for installation or ma...

Страница 21: ...itioner On the maintenance site there should be two or more kinds of dry powder carbon dioxide and foam fire extinguishers and that such fire extinguishers should be placed at stipulated positions wit...

Страница 22: ...t is damaged to the extent that it is a must to open the refrigerating system for maintenance it is a must to carry the product back to the maintenance station for maintenance It is prohibited to weld...

Страница 23: ...nfirm that the refrigerating system has been drained and the system has been cleaned and ensure that there has been no refrigerant in the outdoor unit It is necessary to close the stop valve of the ou...

Страница 24: ...tion and inspection The place can ensure the indoor unit horizontally installed The place shall allow easy water drainage The place shall easily connect with the outdoor unit The place where air circu...

Страница 25: ...TCL Air Conditioner Service Manual 25 More than 30cm More than 60cm More than 200cm More than 30cm More than 60cm Service space Fence or obstacles 2 2 Indoor Unit Installation...

Страница 26: ...TCL Air Conditioner Service Manual 26...

Страница 27: ...TCL Air Conditioner Service Manual 27...

Страница 28: ...TCL Air Conditioner Service Manual 28...

Страница 29: ...TCL Air Conditioner Service Manual 29...

Страница 30: ...TCL Air Conditioner Service Manual 30...

Страница 31: ...hold the inlet of the outdoor unit to prevent it from deforming Do not touch the fan with hands or other objects Do not lean it more than 45 and do not lay it sidelong Make concrete foundation accord...

Страница 32: ...or unit Relationship between water flowrate and capacity of indoor unit Capacity x1000Btu Water flowrate l h 12 2 4 18 4 24 6 30 7 36 8 42 10 48 12 60 14 According to the above table to calculate the...

Страница 33: ...vertical pipe is respectively 1m 1 5m and 1 5m 2 0m Each vertical pipe shall be equipped with not less than two hangers Overlarge hanger gap for horizontal pipe shall create bending thus leading to ai...

Страница 34: ...n below 7 When unifying multiple drain pipes install the pipes as Figure 3 1 51 Select converging drain pipes whose gauge is suitable for the operating capacity of the unit take the cassette type unit...

Страница 35: ...rtically and make sure it is not further than 300mm 11 3 4inch from the base of the drain outlet 4 Secure a downward gradient of 1 100 or more for the drain pipe To accomplish this mount supporting br...

Страница 36: ...ome blocked and malfunction 2 5 Drainage Test 2 5 1 Water Leakage Test After finishing the construction of drainage pipe system fill the pipe with water and keep it for 24 hours to check whether there...

Страница 37: ...Drain plug at the main water containing plate is used for eliminating accumulated water in water containing plate when maintaining air conditioner fault During normal operation the plug shall be fille...

Страница 38: ...l trap should be installed every 6m 20ft of vertical suction line riser 2 6 3 The Procedure of Connecting Pipes 2 6 3 1 Choose the Pipe Size according to the Specification Table 2 6 3 2 Confirm the Cr...

Страница 39: ...ipes more than three times 4 When bending the pipe do not bend it as is The pipe will be collapsed In this case cut the heat insulating pipe with a sharp cutter as shown in Figure 3 3 3 and bend it af...

Страница 40: ...ng table for different pipe connection Pipe Diameter Torque Sketch map kgf cm N cm 1 4 6 35 144 176 1420 1720 3 8 9 52 333 407 3270 3990 1 2 12 7 504 616 4950 6030 5 8 15 9 630 770 6180 7540 3 4 19 99...

Страница 41: ...nifold pressure gauge to vacuum pump 3 Open the Low Pressure side of the manifold gauge Keep the High Pressure side closed 4 Turn on the vacuum pump to empty the gas in the system 5 Run the vacuum pum...

Страница 42: ...liquid state Before recharging The air in the flexible pipe and manifold gauge should be exhausted After finished refrigerant recharge process check whether there is refrigerant leakage at the connect...

Страница 43: ...temperature of condensate drainage water is very low If insulation is not enough it shall form dew and cause leakage to damage the house decoration 2 9 2 3 Insulation Material Selection for Drainage...

Страница 44: ...nd Display board IDU failure Display board and main PCB EE ODU EEPROM failure 1 ODU PCB broken 2 Try to re power on AC unit EF ODU DC fan motor failure Fan motor ODU PCB EU ODU Voltage test circuit ab...

Страница 45: ...e current protection phase current of compressor Querying by press remote controller FF Limiting Reducing frequency for Module temperature protection Querying by press remote controller FH Limiting Re...

Страница 46: ...eplace re connect Check and re connect No n Check voltage from 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...

Страница 47: ...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...

Страница 48: ...nnect 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 condition Can...

Страница 49: ...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...

Страница 50: ...unit can t be recovered to operation except press ON OFF button Display E9 Re power on unit running for 30 min and check the failure code display Normal protection Display F9 or FA first then E9 Repl...

Страница 51: ...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...

Страница 52: ...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...

Страница 53: ...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...

Страница 54: ...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 suppl...

Страница 55: ...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...

Страница 56: ...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...

Страница 57: ...P5 Switch on unit after minutes Display P5 Normal protection 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 moto...

Страница 58: ...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...

Страница 59: ...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...

Страница 60: ...elay 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 or b 30 OAT 40 and RT 35 Display P8 Ambient temperature under spec r...

Страница 61: ...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...

Страница 62: ...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...

Страница 63: ...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...

Страница 64: ...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...

Страница 65: ...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...

Страница 66: ...00276 Cover of motor 1 10 25001 000049 Fan Motor 1 11 45014 002903 Cotton Base assembly 1 12 A5006 000008 Base Rear Foam Assembly 1 13 45013 000054 Left trim strip 1 14 45001 000002 Installation Plate...

Страница 67: ...31 45005 000331 Air Guide Splash motor cover 1 32 35010 000002 Display panel 1 33 41505 000323 Display Film 1 34 35006 000001 Buckle base 2 35 46701 000003 Buckle cover 2 36 45014 002709 Air filter 1...

Страница 68: ...08 000209 4 way valve 1 12 92007 005836 4 way valve assembly 1 13 41202 000177 Base 1 14 41205 000211 Right plate 1 15 92008 000051 Two way valve 1 16 41204 000051 Valve supporter 1 17 92008 000146 Th...

Страница 69: ...4 000542 Compressor and accessories 1 11 92008 000209 4 way valve 1 12 92007 005836 4 way valve assembly 1 13 41202 000177 Base 1 14 41205 000211 Right plate 1 15 92008 000051 Two way valve 1 16 41204...

Страница 70: ...ries 1 11 92008 000207 4 way valve 1 12 92007 000445 4 way valve assembly 1 13 41202 000156 Base 1 14 41205 000082 Right plate 1 15 92008 000051 Two way valve 1 16 41204 000041 Valve supporter 1 17 92...

Страница 71: ...ing 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 3 Cut the...

Страница 72: ...627 4 477 22 5 621 2 621 67 1 175 0 936 22 41 403 4 452 23 5 404 2 572 68 1 139 0 913 21 39 305 4 426 24 5 198 2 524 69 1 105 0 890 20 37 326 4 399 25 5 000 2 475 70 1 072 0 868 19 35 458 4 371 26 4...

Страница 73: ...nit sensor temperature characteristics TEMP R min k Ohm R t k Ohm R max k Ohm TEMP R min k Ohm R t k Ohm R max k Ohm TEMP R min k Ohm R t k Ohm R max k Ohm 30 283 3 322 9 367 7 24 19 36 20 89 22 52 78...

Страница 74: ...9997 1 045 3 50 03 55 05 60 52 57 5 255 5 522 5 798 111 0 9283 0 9719 1 016 4 47 71 52 44 57 59 58 5 07 5 323 5 585 112 0 9021 0 9451 0 9892 5 45 5 49 97 54 82 59 4 891 5 132 5 381 113 0 8765 0 9191...

Страница 75: ...TCL Air Conditioner Service Manual 75 R Resistance Resistance at 25 20 k TH3 Outdoor unit discharge pipe sensor Before measuring resistance disconnect connectors as shown above...

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