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 Air Conditioner Service Manual

 

 

 

 

 

 

 

    

Inverter air conditioner 

 

Service Manual 

 
 
 

Models 

TAC-09CHSA/XA31 INVERTER

                        

         

TAC-12CHSA/XA31 INVERTER

                       

      

 

 

 TAC-18CHSA/XA31 INVERTER

 

 TAC-24CHSA/XA31 INVERTER 

 
 
 

 

 

 

CONTENTS 

 

1. Important Notice 

2

Product Dimensions

 

3

Refrigeration cycle diagram

4

 Operation details

 

5

Wiring diagram

 

6

Explosion view and parts

 

7

 Precaution

 

8

Names of parts

 

9

Installation

 

1

0

Trouble shooting

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for TAC-09CHSA/XA31 INVERTER

Page 1: ...31 INVERTER TAC 12CHSA XA31 INVERTER TAC 18CHSA XA31 INVERTER TAC 24CHSA XA31 INVERTER CONTENTS 1 Important Notice 2 Product Dimensions 3 Refrigeration cycle diagram 4 Operation details 5 Wiring diagram 6 Explosion view and parts 7 Precaution 8 Names of parts 9 Installation 10 Troubleshooting ...

Page 2: ...ble 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 modification or improvement without any prior notice The accurate specifications are presented on the nameplate label How to order spare parts To have your order filled promptly and correctly please furnish the...

Page 3: ...1490 470 2450 1990 660 2650 Max Current Cooling A 7 2 8 0 10 2 10 6 Heating A 7 5 8 8 11 1 12 1 Max Power input Cooling W 1250 1550 2300 2380 Heating W 1350 1650 2450 2650 Refrigerating System Refrigerant Charge Gram R410A 520g R410A 650g R410A 830g R410A 1650g Compressor Model 39A23MYJ FJKD 39A23MYJ FJKD ASD113RKPA6JT1 ATN150D42UFZ MFG RECHI RECHI HIGHLY GMCC Type Rotary Rotary Rotary Rotary Fan ...

Page 4: ...r unit A B C D E F G H I J K TAC 09CHSA XA31 INVERTER 698 255 190 700 550 256 439 302 277 8 48 55 TAC 12CHSA XA31 INVERTER 777 250 205 700 550 256 439 2 302 277 8 48 55 TAC 18CHSA XA31 INVERTER 910 292 205 760 550 256 439 302 277 8 48 55 TAC 24CHSA XA31 INVERTER 1010 315 220 820 605 300 518 357 329 55 63 ...

Page 5: ...ry Compressor Accumulator Heat exchange condenser Heat exchange Evaporator 2 way valve Liquid side 3 way valve Gas side Cooling Heating Gas side 3 way valve Liquid side 2 way valve Heat exchange Evaporator Heat exchange condenser Accumulator Compressor 4 way valve Capillary Assembly Check valve ...

Page 6: ... Only then you CAN NOT preset the Heating operation with the remote controller 9 9 1 2 4 3 5 6 10 7 MODE button ECO button FAN SPEED button TEMP UP button TIMER button SLEEP button TEMP DOWN button To select the mode of operation In cooling mode press this button the temperature will increase 2 on the base of setting temperature In heating mode press this button the temperature will decrease 2 on ...

Page 7: ...r or load of compressor is abnormity the air conditioner will shut down and show error code 7 IPM module protection IPM module has high temperature over current protection itself if there is signal feedback to IPM the outdoor unit will shut down LED on outdoor PCB will show the error code 2 Feel Mode Operation 1 When the Feel mode is selected the operation mode and initial temperature set are dete...

Page 8: ...irst it operates in cooling mode the set temperature ST is RT 2 After that t he system will operate in cooling mode with lowest fan speed for 30 minutes and then change to middle speed for 30seconds as a cycle During the course of this operation you can t use remote controller to adjust the fan speed but you can control the vane direction 3 In the dry mode when RT 12 the compressor will stop and o...

Page 9: ...heat exchanger Temperature OPT is continuously less than 3 while the unit runs for more than 120 minutes and OPT is keeping below 2 for more than 3 minutes Before the air con comes into defrosting compressor running frequency drop down to a lower frequency firstly then the compressor shuts down In defrosting the max frequency of compressor is F9 a little less than the highest frequency In this per...

Page 10: ... indoor unit for function test NOTE Do not press the EMERGEMCY Operation switch during normal operation 8 AUTO RESTART Function Option While air conditioner is operating in one mode all of its operation data such as working mode preset temperature etc would be memorized into IC by main PCB If power supply cut off due to reasons and recover again the AUTO RESTART function will set synchronously and...

Page 11: ...t z Outdoor failure display There is a LED on outdoor power board it blinks 1s ON and 1s OFF while compressor standby and it always light ON while compressor running If there is failure happened on ODU The indicator LED alerts the fault in a cycle as such that it is bright for 0 5 seconds dark for 0 5 seconds blinks n times and then dark for 3 seconds For details as table below Protection Type Fun...

Page 12: ...mpressor overheat fault compressor top switch 9 Short circuit open circuit fault of outdoor temperature sensor 10 Short circuit open circuit fault of outdoor heat exchanger temperature sensor 11 Short circuit open circuit fault of exhaust temperature sensor 12 Voltage sensor fault 13 Current sensor fault 14 IPM fault 15 Communication fault between power source board and IPM 16 No feedback from DC ...

Page 13: ...Air Conditioner Service Manual 12 6 Wiring diagram MODEL TAC 09CHSA XA31 INVERTER TAC 12CHSA XA31 INVERTER TAC 18CHSA XA31 INVERTER INDOOR UNIT OUTDOOR UNIT ...

Page 14: ...Air Conditioner Service Manual 13 MODEL TAC 24CHSA XA31 INVERTER INDOOR UNIT OUTDOOR UNIT ...

Page 15: ...5 1170120044 Power Supply Cord 1 16 210738393 Electrical Box Cover 1 17 210736832 Cable Clamp 1 18 210900478A Terminal 1 19 210901224 Transformer 1 20 210901714U Main PCB 1 21 210900333 Indoor Sensor Assembly 1 22 210736831 Electrical Box 1 23 1170030067G Indoor Motor 1 24 210737653 Indoor Motor Cover 1 25 210701902 Step Motor connector 1 26 210900129 Step Motor 1 27 210701906 Step Motor Supporter...

Page 16: ...1120110016H 4 way Valve 1 12 211232688A 4 way Valve Assembly 1 13 210800545 Base 1 14 210800541 Right Plate 1 15 1120120021 Two way Valve 1 16 1080050003 Valve Supporter 1 17 211206766 Three way Valve 1 18 1070350971 Electrical Box Cover 1 19 1070040003 Cable Clamp 1 20 1170200061 Terminal 1 21 210901774G Outdoor PCB Assembly 1 22 210901769 Inductor 1 23 211242312 Capillary assembly 1 24 108005011...

Page 17: ...0737654 Electrical Box Cover 1 17 210736832 Cable Clamp 1 18 210900478A Terminal 1 19 210901224 Transformer 1 20 210901714AQ Main PCB 1 21 210900333 Indoor Sensor Assembly 1 22 210736831 Electrical Box 1 23 1170030067G Indoor Motor 1 24 210737653 Indoor Motor Cover 1 25 210701903 Right Vertical Vane Supporter 1 26 210701902 Step Motor connector 1 27 210900129 Step Motor 1 28 210701906 Step Motor S...

Page 18: ...1 1120110016H 4 way Valve 1 12 211232688A 4 way Valve Assembly 1 13 210800466 Base 1 14 1080050002 Right Plate 1 15 1120120021 Two way Valve 1 16 1080050003 Valve Supporter 1 17 211206766 Three way Valve 1 18 1070350971 Electrical Box Cover 1 19 1070040008 Cable Clamp 1 20 1170200061 Terminal 1 21 210901774 Outdoor PCB Assembly 1 22 210901769 Inductor 1 23 211242312 Capillary assembly 1 24 1080050...

Page 19: ...Power Supply Cord 1 16 210738393 Electrical Box Cover 1 17 210736832 Cable Clamp 1 18 210900478A Terminal 1 19 210901224 Transformer 1 20 210901714AC Main PCB 1 21 210900333 Indoor Sensor Assembly 1 22 210736831 Electrical Box 1 23 1170030101B Indoor Motor 1 24 210738581 Indoor Motor Cover 1 25 210701902 Step Motor connector 1 26 210900129 Step Motor 1 27 210701906 Step Motor Supporter 1 28 210737...

Page 20: ...1120500226 4 way Valve 1 12 211230555 4 way Valve Assembly 1 13 210800433A Base 1 14 1080050002 Right Plate 1 15 1120120021 Two way Valve 1 16 1080050003 Valve Supporter 1 17 211206766 Three way Valve 1 18 1070350971 Electrical Box Cover 1 19 1070040008 Cable Clamp 1 20 1170200055 Terminal 1 21 210901380AE Outdoor PCB Assembly 1 22 1171990046 Inductor 1 23 211243110 Capillary assembly 1 24 1080050...

Page 21: ...1120500226 4 way Valve 1 12 211238423 4 way Valve Assembly 1 13 210800571 Base 1 14 1081990054 Right Plate 1 15 1120120021 Two way Valve 1 16 1081990055 Valve Supporter 1 17 1120130085 Three way Valve 1 18 1070350971 Electrical Box Cover 1 19 1070040008 Cable Clamp 1 20 1170200055 Terminal 1 21 210900444BC Outdoor PCB Assembly 1 22 1170190004 Inductor 1 23 211242999 Capillary assembly 1 24 1080050...

Page 22: ...tion under over voltage category III conditions and these means must be incorporated in the fixed wiring in accordance with the wiring rules z The air conditioner must be installed by professional or qualified persons Do not install the appliance at a distance of less than 50 cm from inflammable substances alcohol etc Or from pressurized containers e g spray cans z If the appliance is used in area...

Page 23: ...ause an excessive accumulation of dust or waste on the inner parts of the device with possible subsequent failures z The user is responsible for having the appliance installed by a qualified technician who must check that it is earthed in accordance with current legislation and insert a thermomagnetic circuit breaker z The batteries in remote controller must be recycled or disposed of properly Dis...

Page 24: ...air could contain gas oil or sulphur or near sources of heat z This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety z Do not climb onto or place any heavy or hot objec...

Page 25: ...el 2 Air filter 3 Special filter option 4 Display PCB 5 Vertical vane 6 Horizontal vane 7 Remote controller 9 Names of parts Outdoor unit No Name 8 Air outlet grille 9 Electronic box cover 10 2 way valve 11 3 way valve 1 2 3 4 6 5 7 INDOOR UNIT 8 9 10 11 OUTDOOR UNIT ...

Page 26: ...g 20g m A 5m TAC 09CHSA XA31 INVERTER 5 0 15 20g m TAC 12CHSA XA31 INVERTER 5 0 15 20g m TAC 18CHSA XA31 INVERTER 5 0 15 30g m TAC 24CHSA XA31 INVERTER 5 0 15 30g m Connecting cables The power cord should be selected according to the following specifications sheet Appliance Amps Wire Size 5 AWG21 0 75 mm2 10 AWG18 1 0 mm2 13 AWG15 1 5 mm2 18 AWG14 1 6 mm2 25 AWG12 2 0 mm2 30 AWG10 2 5 mm2 Outdoor ...

Page 27: ...DOOR UNIT Do not install the outdoor unit near sources of heat steam or flammable gas Do not install the unit in too windy or dusty places Do not install the unit where people often pass Select a place where the air discharge and operating sound level will not disturb the neighbours Avoid installing the unit where it will be exposed to direct sunlight other wise use a protection if necessary that ...

Page 28: ...ible flange through the hole in the wall to keep the latter intact and clean 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 10 2 3Electrical connections Indoor unit 1 Lift the front panel 2 Take off the cover as indicated in the picture by removing a screw or by breaking the hooks 3 For the electri...

Page 29: ...o not bend the pipe more than three times at one point z When extending the rolled pipe straighten the pipe by unwinding it gently as shown in the picture 10 2 6Connections to the indoor unit 1 Remove the indoor unit pipe cap check that there is no debris inside 2 Insert the fare nut and create a flange at the extreme end of the connection pipe 3 Tighten the connections by using two wrenches worki...

Page 30: ...ghtening procedures described for the indoor unit Note If the tightening torque is not sufficient there will probably be some leakage With excessive tightening torque there will also be some leakage as the flange could be damaged 10 2 10 Bleeding Air and humidity left inside the refrigerant circuit can cause compressor malfunction After having connected the indoor and outdoor units bleed the air a...

Page 31: ... display Health assembly control Communication with outdoor unit Louver motor control Indoor fan control Display pc board Indoor control board Voltage sampling Frequency generation Storage of working parameters Emergencyl Switch signal input Remote signal input Fan speed feedback Electric heater control Selection of heat and cool only model Selection of data sheet Selection of Fahrenheit and Centi...

Page 32: ...P3 S Black P1 ACL Brown P00 P01 P5 1 P8 VAL Electric reactor PC monitor P10 3 W P10 2 V COMP Blue W hite Red T o indoor unit Expansion valve Suction T emp sensor Out door coil T emp sensor Outdoor ambient T emp sensor COM P top T emp protection Exhaust T emp sensor CN12 ORQ P13 L P 14 L P10 1 U P9 CN12 2 P11 1 P11 2 HEAT wu v CN12 1 DC fan motor feedback C N L H CN410 OUTFAN DRM 3 DRM 2 DRM 1 DRM ...

Page 33: ...monitor P10 1 U P10 2 V COMP Red White Blue T o indoor unit Expansion valve Suction T emp sensor Out door coil T emp sensor Outdoor ambient T emp sensor COMP top T emp protection Exhaust T emp sensor CN12 ORQ P13 L P14 L P10 3 W P9 DCFAN CN11 HEAT DRM1 DRM COM DRM2 DRM3 CN13 U603 IPM Q403 IGBT DN401 rectifier D412 Fast recovery diode Indoor unit outdoor unit Power supply compressor Indoor unit PCB...

Page 34: ...slot CN6 if loose or not plugged in please connect again 2 Room temperature sensor IRT and Indoor pipe coil temperature sensor IPT damage short or broken Solution check the resistance of the sensor R 25 5 kΩ if short or broken please replace it 3 The PCB fail Solution Replace the indoor main PCB 11 5 2 Display E6 Reasons 1 The indoor motor connection terminal loose or not plugged in OK Fail ...

Page 35: ...utdoor pipe temp sensor outdoor temp sensor exhaust temp sensor connection terminal loose or not plugged in Solution Check the connecter of sensor and slot if loose or not plugged in please connect again 2 Outdoor pipe temp sensor outdoor temp sensor exhaust temp sensor damage short or broken Solution Check and replace the sensor 3 Outdoor PCB damage Solution Check and replace the outdoor PCB 11 5...

Page 36: ...ll correspond to each other on indoor and outdoor units Measure the voltage on outdoor terminal L and N before display of E0 fault If the voltage is 0 please replace indoor main PCB 2 If the 1 N which connect to indoor unit voltage is normal measure the voltage between the outdoor terminal 1 and N If the voltage change occurs between 0 24V change pulse voltage please replace indoor main PCB 3 If t...

Page 37: ...ectifier FRD IGBT etc any component broken replace PCB 7 Test the DC voltage between DC and DC If the voltage is less than 50V approximately please replace outdoor PCB 11 5 5 Display EA Reason Current sensor fault Solution 1 Check for refrigerant leakage to find the leakage point and recharge the refrigerant 2 Current sampling circuit broken on the outdoor PCB and replace outdoor PCB Communication...

Page 38: ...at affects the normal radiating of the air conditioner and installation again 5 If the above inspections are normal but the fault remains unsolved please replace the outdoor PCB Re energize and check the protection code on display Firstly display P9 a Check the U V W connection if is correctness or loose please connect again b If this code is displayed when the compressor is started for several se...

Page 39: ...rent indication error occurs Clean indoor or outdoor heat exchange Clean indoor heat exchange and outdoor heat exchange Check the refrigerant amount Check the installation condition Installation again P9 Use the remote operates the air conditioner Does compressor start up No Does the wire connects right No Connects wire again Yes Open Does low or high press valve opened Operates again after 3 Mins...

Page 40: ...ad wire on PWB Replace P WB Cooling mode Check compressor Modify compressor terminal marking Replace PWB Does compressor rotates Replace compressor Check indoor exchange sensor and discharge sensor Modify or replace the sensor Check outdoor exchange sensor and discharge sensor Modify or replace the sensor Check indoor heat exchange Check outdoor heat exchange Clean indoor heat exchange Clean outdo...

Page 41: ...blink Check terminal L N voltage Yes No Check the rectifier bridge fast recovery diode FRD and IGBT Solve as E0 Check wire connected and replace indoor PCB Normal Abnormal Replace PFC board or outdoor PCB assembly Test the DC voltage between DC and DC Damage Normal If the voltage is approx 300V If the voltage is approx zero Replace power supply board or outdoor PCB assembly Replace PFC board or ou...

Page 42: ... 765 14 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 3 435 2 012 80 0 795 0 675 9 21 606 4 045 36 3 313 1 969 81 0 773 0 658 8 20 598 4 008 37 3 195 1 926 82 0 751 0 641 7 19 644 3 969 38 3 082 1 883 83 0 729 0 625 6 18 732 3 930 39 2 974 1 842 ...

Page 43: ... 047 2 109 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 1 183 2 36 11 72 12 52 13 36 90 1 746 1 805 1 865 17 137 5 154 4 173 2 37 11 26 12 01 12 81 91 1 692 1 75 1 809 16 130 3 146 2 163 9 38 10 82 11 53 12 29 92 1 639 1 697 1 755 15 123 6 138 5 155 ...

Page 44: ... 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 4 167 120 13 31 43 34 25 37 29 67 3 698 3 858 4 021 121 0 702 0 7386 0 7773 14 30 04 32 71 35 58 68 122 0 6631 0 7195 0 7572 15 29 72 31 24 33 95 69 123 0 6649 0 7007 0 7378 16 70 3 339 3 476 3 616 124 0 6472 ...

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