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Haier HSU09VHJ Service Manual

Ea-series dc inverter wall mounted type
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See also: Installation Manual
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death
©
(Qingdao Haier Air Conditioner General corp.,Ltd)
All right reserved .Unauthorized copying and distribution is a violation of law

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Summary of Contents for Haier HSU09VHJ

  • Page 1 © (Qingdao Haier Air Conditioner General corp.,Ltd) All right reserved .Unauthorized copying and distribution is a violation of law...
  • Page 2 HSU09VHJ(DB)-SM of indoor unit Main functions and control specifications of outdoor unit Function of main thermistor Value of thermistor Caution for diagnosis 3 Error codes and description indoor display For indoor unit For outdoor unit ..................10.1 Indoor Unit ....................
  • Page 3 HSU09VHJ(DB)-SM...
  • Page 4 HSU09VHJ(DB)-SM...
  • Page 5 HSU09VHJ(DB)-SM...
  • Page 6 HSU09VHJ(DB)-SM...
  • Page 7 HSU09VHJ(DB)-SM...
  • Page 8 HSU09VHJ(DB)
  • Page 9 HSU09VHJ(DB)-SM HSU09VHJ(DB) 3.51(1.47-4.1) 3.93(1.35-4.1) 12000(5000-14000 ) 13400(4600-14000) 3018.6(1260-3520) 3380(1160-3530) pints/hr 2.82 1090( 190(2 0-14 0) 16.8 SEER/HSPF inches inches inches feet 49 3/16 feet 32 13/16 feet 32 13/16 OZ/inches 0.018 7. 2 7. 2 6. 3 6. 3 0.15 0.15...
  • Page 10 HSU09VHJ(DB)-SM Rotary Compressor DA89X1C-20FZ ESTER OIL VG74 pints 0.65 R410a 35.5 31.6 31.6 1115 1115 inches 21 3/8 x 30 13/16 x 10 1/16 inches 23 9/16 x 36 x 12 13/16 72.75 79.37 80 F 67 F 70 F /60°...

  • Page 11: Indoor Unit Connectors

    HSU09VHJ DB -SM Connector Wiring Diagram 4.1 Indoor unit Connectors 1) CN26 Connector for fan motor 2) CN11 Connector for STEP motor 3) CN8 Connector for heat exchanger thermistor and Room temperature thermistor 4)CN27 Connector for fan feedback 5)CH1 Connector for power L wire...
  • Page 12 HSU09VHJ DB -SM Connector Wiring Diagram CN26 CON12 CN27 CN32 CN11 CON2 CN30 CON8 CN31 Domestic Air Conditioner...

  • Page 13: Outdoor Unit

    HSU09VHJ DB -SM Connector Wiring Diagram outdoor unit 1) CN1,CN2 Connector for power N and L 2) CN3 Connector for ground 3) CN22 Connector for DC POWER 15Vand 5V to the module board 4) CN16 Connector for electric expansion valves...
  • Page 14 HSU09VHJ DB -SM Connector Wiring Diagram CN26 CN24 CN23 CN22 CN21 CN17 CN18 CN19 CN20 CN16 CN10 CN25 Domestic Air Conditioner...
  • Page 15 HSU09VHJ DB -SM Connector Wiring Diagram CN11 CN10 Domestic Air Conditioner...

  • Page 16: Funcitions And Control

    This specification use for HSU18VHJ DB frequency conversion air condition are manufactured by Haier air condition parent company. "Setting value" (express in parameter) in this specification means is a parameter that is stored in EEPROM. Refer to [EEPROM parameter table].

  • Page 17: Main Functions

    HSU09VHJ DB -SM Funcitions and Control When the compressor is working and the max setting for indoor fan motor is medium or weak, the upper limit of indicated frequency is as follows: Frequency control form for wind volume Limited frequency...

  • Page 18: Special Functions

    HSU09VHJ DB -SM Funcitions and Control 20 seconds after the compressor stops, the up wind volume is weak (switching to SSLO in silent running mode) and then slightly weak. While the down wind volume is stoped If the compressor stops when the heat running starts, the wind volume is weak Under the dehumidification mode the fan motor stops as the compressor stops The operation is weak after 3 minutes’...
  • Page 19 HSU09VHJ DB -SM Funcitions and Control When in automatic mode, there are powerful and silent functions for your choice. When the main unit is in cooling mode, it operates with powerful cooling or silent cooling. When the main unit is in heating mode, it operates with powerful heating or silent heating.
  • Page 20 HSU09VHJ DB -SM Funcitions and Control a. After setting the sleeping function, the refrigerating mode and dehumidification mode will run as per the following rules: 1 hour 1 hour 6hours T( ) Ts+4 Ts+2 b.After setting the sleeping function, the heating mode will run as per the following rules:...
  • Page 21 HSU09VHJ DB -SM Funcitions and Control memoried Press the sleep key for 10 times with 2 beeps in 7 seconds to exit. Rated Cooling: When receiving the instruction of indoor unit rated operation, the unit will start rated cooling operation.

  • Page 22: Outdoor Unit Operation Frequency And Control

    HSU09VHJ DB -SM Funcitions and Control 5.2 Main functions and control specification of outdoor unit Sensor Code Definition: Tai= Indoor Ambient Temperature, Tao=Outdoor Ambient Temperature, Tc1=Indoor Coil, Td= Air Discharge, Te= Outdoor Coil, Ts=Air Intake 5.2.1 Outdoor Unit Operation Frequency and Control...

  • Page 23: Outdoor Fan Control

    HSU09VHJ DB -SM Funcitions and Control 5.2.2 Outdoor fan control Outdoor Temperature Cooling/ Dehumidification Heating Cooling/ Dehumidification: Compressor Operation Frequency Hz Heating: Compressor Operation Frequency Hz When compressor shuts down in cooling mode, outdoor fan automatically jumps to low speed and blows residual heat for 30s and stop.

  • Page 24: Ptc Output Control

    HSU09VHJ DB -SM Funcitions and Control TE C×TA Among which: C:TA 0 C=0.8 TA 0 C=0.6 For area prone to frost, the value is set at 6 when unit leaves the factory. Defrosting entry temperature control -15 C×TA time interval between two defrosting cycles is 45 minutes.

  • Page 25: System Protection Function

    HSU09VHJ DB -SM Funcitions and Control 5.2.6 System Protection Function Time interval between compressor shutdown and restart is set at 3 minutes to ensure that compressor will only restart after 3-minute shutdown and initial energization valves are turned on to adequate opening position after being fully turned off.
  • Page 26 HSU09VHJ DB -SM Funcitions and Control Cooling: When outdoor temperature is lower than 23 , cooling operation will start, compressor frequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1. Heating: When outdoor temperature is higher than 18 , heating operation will start, compressor frequency is limited to less than 53 HZ, outdoor wind speed is forced at level 1.

  • Page 27: Function Of Main Thermistor

    HSU09VHJ DB -SM Funcitions and Control 5.3 Function of Main Thermistor : A:Outdoor suction temperature sensor B: Exhaust temperature sensor C: Indoor heat-exchange sensor The outdoor heat exchanger thermistor is used for controlling target discharge temperature. The system sets a target discharge temperature according to the outdoor and indoor heat exchanger temperature, and controls the electronic expansion valve opening so that the target discharge temperature can be obtained.

  • Page 28: Value Of Thermistor

    HSU09VHJ DB -SM Funcitions and Control 5.4 Value of Thermistor 5.4.1 intdoor Unit Room sensor R25 =23K ±3.5% B25 /50 =4200K±3% Temp.( ) Max.(K ) Normal(K ) Min.(K ) Tolerance( ) 568.8372 501.0746 440.8435 -1.97 1.75 530.9600 468.6491 413.1441 -1.95 1.74...
  • Page 29 HSU09VHJ DB -SM Funcitions and Control 62.7992 58.9853 55.3351 -1.22 1.17 59.4984 55.9729 52.5917 -1.20 1.15 56.3905 53.1320 50.0006 -1.17 1.13 53.4631 50.4521 47.5523 -1.15 1.11 50.7048 47.9230 45.2384 -1.13 1.09 48.1049 45.5355 43.0505 -1.10 1.07 45.6534 43.2808 40.9813 -1.08 1.04...
  • Page 30 HSU09VHJ DB -SM Funcitions and Control 8.2713 7.7345 7.2237 -1.73 1.64 7.9531 7.4280 6.9291 -1.77 1.68 7.6489 7.1353 6.6480 -1.81 1.72 7.3580 6.8556 6.3797 -1.85 1.76 7.0796 6.5884 6.1237 -1.90 1.79 6.8131 6.3329 5.8793 -1.94 1.83 6.5581 6.0887 5.6459 -1.99 1.87...
  • Page 31 HSU09VHJ DB -SM Funcitions and Control 1.8856 1.6844 1.5028 -3.75 3.38 1.8272 1.6307 1.4535 -3.80 3.43 1.7709 1.5789 1.4060 -3.86 3.47 1.7166 1.5291 1.3603 -3.91 3.52 1.6643 1.4810 1.3163 -3.97 3.56 1.6138 1.4347 1.2739 -4.02 3.61 1.5650 1.3900 1.2331 -4.08 3.66...
  • Page 32 HSU09VHJ DB -SM Funcitions and Control 97.6556 88.7989 80.6728 -1.78 1.63 92.3028 84.0695 76.5017 -1.76 1.62 87.2775 79.6222 72.5729 -1.74 1.60 82.5577 75.4384 68.8710 -1.72 1.59 78.1230 71.5010 65.3815 -1.70 1.57 73.9543 67.7939 62.0907 -1.68 1.55 70.0342 64.3023 58.9863 -1.66 1.54...
  • Page 33 HSU09VHJ DB -SM Funcitions and Control 11.2172 10.8634 10.5114 -0.78 0.78 10.7475 10.4216 10.0964 -0.75 0.75 10.3000 10.0000 9.7000 -0.75 0.75 9.8975 9.5974 9.2980 -0.76 0.76 9.5129 9.2132 8.9148 -0.80 0.80 9.1454 8.8465 8.5496 -0.84 0.83 8.7942 8.4964 8.2013 -0.87 0.86...
  • Page 34 HSU09VHJ DB -SM Funcitions and Control 2.3068 2.1383 1.9803 -2.45 2.29 2.2347 2.0695 1.9147 -2.49 2.34 2.1652 2.0032 1.8516 -2.54 2.38 2.0983 1.9393 1.7908 -2.59 2.42 2.0337 1.8778 1.7324 -2.63 2.46 1.9714 1.8186 1.6761 -2.68 2.50 1.9113 1.7614 1.6219 -2.73 2.54...
  • Page 35 HSU09VHJ DB -SM Funcitions and Control 0.6528 0.5820 0.5183 -4.74 4.26 0.6361 0.5667 0.5043 -4.80 4.31 0.6200 0.5518 0.4907 -4.86 4.36 0.6043 0.5374 0.4775 -4.92 4.41 0.5891 0.5235 0.4648 -4.98 4.45 0.5743 0.5100 0.4524 -5.04 4.50 0.5600 0.4968 0.4404 -5.10 4.55...
  • Page 36 HSU09VHJ DB -SM Funcitions and Control 37.4465 35.0144 32.7108 -1.41 1.33 35.6202 33.3552 31.2062 -1.38 1.31 33.8936 31.7844 29.7796 -1.36 1.29 32.2608 30.2968 28.4267 -1.34 1.28 30.7162 28.8875 27.1431 -1.32 1.26 29.2545 27.5519 25.9250 -1.29 1.24 27.8708 26.2858 24.7686 -1.27 1.22...
  • Page 37 HSU09VHJ DB -SM Funcitions and Control 5.5914 5.3269 5.0704 -1.33 1.29 5.3916 5.1308 4.8783 -1.37 1.33 5.2001 4.9430 4.6944 -1.41 1.36 5.0163 4.7630 4.5185 -1.45 1.40 4.8400 4.5905 4.3500 -1.49 1.44 4.6708 4.4252 4.1887 -1.53 1.47 4.5083 4.2666 4.0342 -1.57 1.51...
  • Page 38 HSU09VHJ DB -SM Funcitions and Control 1.3335 1.2153 1.1066 -3.32 3.06 1.2953 1.1794 1.0730 -3.38 3.10 1.2583 1.1448 1.0405 -3.43 3.15 1.2226 1.1113 1.0092 -3.48 3.19 1.1880 1.0789 0.9789 -3.53 3.24 1.1546 1.0476 0.9497 -3.58 3.28 1.1223 1.0174 0.9215 -3.64 3.33...
  • Page 39 HSU09VHJ DB -SM Funcitions and Control Discharging Sensor R80 =50K B25/80 =4450K 3% Temp.(( )) Max.(K ) Normal(K ) Min.(K ) Tolerance( ) 14646.0505 12061.7438 9924.4999 -2.96 2.45 13654.1707 11267.8730 9290.2526 -2.95 2.44 12735.8378 10531.3695 8700.6388 -2.93 2.44 11885.1336 9847.7240 8152.2338...
  • Page 40 HSU09VHJ DB -SM Funcitions and Control 1236.4792 1094.3200 967.6334 -2.36 2.11 1171.0715 1038.0743 919.3533 -2.35 2.09 1109.4661 985.0146 873.7359 -2.33 2.08 1051.4226 934.9440 830.6210 -2.31 2.07 996.7169 887.6792 789.8583 -2.29 2.06 945.1404 843.0486 751.3077 -2.27 2.04 896.4981 800.8922 714.8380 -2.26 2.03...
  • Page 41 HSU09VHJ DB -SM Funcitions and Control 146.9136 138.3454 130.1598 -1.47 1.40 140.7403 132.6980 125.0027 -1.44 1.38 134.8559 127.3081 120.0746 -1.42 1.36 129.2457 122.1630 115.3645 -1.40 1.34 123.8956 117.2504 110.8618 -1.37 1.32 118.7926 112.5589 106.5564 -1.35 1.30 113.9241 108.0776 102.4388 -1.32 1.28...
  • Page 42 HSU09VHJ DB -SM Funcitions and Control 27.9078 26.5864 25.3048 -1.49 1.44 27.0160 25.7110 24.4470 -1.53 1.48 26.1569 24.8685 23.6222 -1.57 1.52 25.3290 24.0574 22.8291 -1.61 1.55 24.5311 23.2765 22.0662 -1.65 1.59 23.7620 22.5245 21.3323 -1.69 1.63 23.0205 21.8002 20.6261 -1.73 1.66...
  • Page 43 HSU09VHJ(DB)-SM...

  • Page 44: Parts And Functions

    HSU09VHJ(DB)-SM system configration Parts and Functions 8. HEALTH button 9. ON/OFF button 10. TIMER ON display 11. FAN SPEED display Inlet grille Air Purifying Filter Inlet AUTO 12. LOCK display 13. SWING UP/DOWN display Emergency Outlet 14. SLEEP display Switch 15.

  • Page 45: Test Operation

    HSU09VHJ(D B)-SM Operation Press CLOCK button, "AM" or "PM" flashes. Emergency Operation: Press to set correct time. Each press will increase or decrease 1min. If the button is kept pressed,time will Use this operation only when the change quickly. After time setting is confirmed,press SET, remote controller is defective or lost.
  • Page 46 HSU09VHJ(D B)-SM Operation In AUTO mode The unit operates in corresponding sleep Before going to bed, you can simply press the mode adapted to the automatically selected SLEEP button and unit will operate in SLEEP operation mode. mode and bring you a sound sleep.
  • Page 47 HSU09VHJ(DB)-SM system configration Operation IMPORTANT INFORMATION REGA- Set clock correctly before starting TIMER operation. RDING THE REFRIGERANT USED 1.After unit starts, select your desired operation mode. 2.Press TIMER button to change TIMER mode. Every Contains fluorinated greenhouse gases time the button is pressed, display changes as follows:...

  • Page 48: Maintenance

    HSU09VHJ(DB)-SM Maintenance For Smart Use of The Air Conditioner Remote Controller Indoor Body Setting of proper room Do not block the air inlet temperature or outlet Proper Wipe the air conditioner by using a soft and temperature dry cloth.For serious stains,use a neutral detergent diluted with water.Wring the water...
  • Page 49 HSU09VHJ(DB)-SM system configration Cautions WARNING Please call Sales/Service Shop for the Installation. Do not attempt to install the air conditioner by yourself because improper works may cause electric shock, fire, water leakage. WARNING Check proper When abnormality such as burnt-small found,...

  • Page 50: Troubleshooting

    HSU09VHJ(DB)-SM system configration Trouble shooting Cautions grille of the air Do not obstruct or cover the ventilation Before asking for service, check the following first. conditoner.Do not put fingers or any other things into the inlet/outlet and swing louver. Do not allow children to play with the air conditioner .In no...

  • Page 51: Service Diagnosis

    HSU09VHJ DB -SM Service Diagnosis 7 Service Diagnosis 7.1 Caution for Diagnosis The operation lamp flashes when any of the following errors is detected. 1.When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation.

  • Page 52: Error Codes And Description Indoor Display

    HSU09VHJ DB -SM Service Diagnosis 7. .Error Codes and Description indoor display Code indication Reference Outdoor Description Page indoor (LED1 flash times) Indoorand Outdoor Communication fault between indoor and Page . outdoor units Room temperature sensor failure Page . Indoor Malfunction Heat-exchange sensor failure Page .
  • Page 53 HSU09VHJ DB -SM Service Diagnosis 7. .1Thermistor or Related Abnormality (indoor unit) : Room temperature sensor failure : Heat-exchange sensor failure the temperatures detected by the thermistors are used to determine thermistor errors when the thermistor input is more than 4.92V or less than 0.08V during compressor operation.

  • Page 54: Indoor Fan Motor Malfunction

    HSU09VHJ DB -SM Service Diagnosis 7. .2 Indoor fan motor malfunction The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation when the detected rotation feedback singal don’t receiced in 2 minutes Operation halt due to breaking of wire inside the fan motor .

  • Page 55: Ipm Protection

    HSU09VHJ DB -SM Service Diagnosis Does fan rotate Replace fan motor smoothly? Turn power ON and operate fan Turn off power supply and disconnect fan motor connector,then turn power ON Does it rotate? Check output of fan motor connector I s m o t o r p o w e r...
  • Page 56 HSU09VHJ DB -SM Service Diagnosis IPM protection is detected by checking the compressor running condition and so on. The system leads to IPM protection due to over current The compressor faulty leads to IPM protection circuit component of IPM is broken and led to IPM protection...

  • Page 57: Thermistor Or Related Abnormality (Outdoor Unit)

    HSU09VHJ DB -SM Service Diagnosis 7. .4 The IPM and outdoor PCB don’t communicate or Related Abnormality LED1 flash 4 times Indoor Display Communication is detected by checking the IPM module and the outdoor PCB The outdoor PCB broken leads to communication fault...
  • Page 58 HSU09VHJ DB -SM Service Diagnosis LED1 flash 10 times: LED1 flash 13 times: LED1 flash 12 times: LED1 flash 11times: This type of error is detected by checking the thermistor input voltage to the microcomputer. (A thermistor error is detected by checking the temperature) The thermistor input is above 4.9V or below 0.1V with the power on.

  • Page 59: Overheat Protection For Exhaust Temperature

    HSU09VHJ DB -SM Service Diagnosis 7. .6 Overheat Protection For Exhaust Temperature LED1 flash 8 times the exhaust temperature control is checked with the temperature being detected by the exhaust pipe thermistor when the compressor discharge temperature is above 117...
  • Page 60 HSU09VHJ DB -SM Service Diagnosis Pull out the exhaust sensor and measure its The sensor is damaged. Replace the sensor resistance standard temperatures with a new one. according to the resistance-temperature table The sensor is damaged. Replace the sensor the results deviate with a new one.
  • Page 61 HSU09VHJ DB -SM Service Diagnosis 7. .8 Communication error between the indoor and outdoor units LED1 flash 15 times The date received from the another unit in indoor unit-outdoor unit signal transmission is checked whether is normal Detection Malfunction When the date sent from the another unit cannot be received normally,or when the content...
  • Page 62 HSU09VHJ DB -SM Service Diagnosis Check the status of LED1 on the indoor mainboard. If the LED1 blinks measure voltage between Jumpers 3 and 4 of IC8 on the indoor mainboard with a multimeter. Test the outdoor power supply (230VAC and +310VDC) with a multimeter.
  • Page 63 HSU09VHJ DB -SM Service Diagnosis 7. .10 Power Supply Over or under voltagve fault LED1 flash 6 times An abnormal voltage rise or fall is detected by checking the specified voltage detection An voltage signal is fed from the voltage detection circuit to the microcomputer...
  • Page 64 HSU09VHJ DB -SM Service Diagnosis 7. .11 Loop of the station detect error LED1 flash 18 times LED1 flash 19 times the position of the compressor rotor can not detected normally when the The wiring of compressor is wrong or the connection is poor;...
  • Page 65 HSU09VHJ DB -SM Service Diagnosis 7. .12 Over-current of the compressor LED1 flash 3 or 24 or 25 times The current of the compressor is too high when the IPM Module is damaged the compressor is damaged power supply. voltage is too low or too high...
  • Page 66 HSU09VHJ DB -SM Service Diagnosis 7. .13Fan Motor(DC Motor) or Related Abnormality LED1 flash 9 times The rotation speed detected by the Hall IC during fan motor operation is used to abnormal fan motor operation when the detected rotation feedback singal don’t receiced in 2 minutes Operation halt due to short circuit inside the fan motor winding.
  • Page 67 HSU09VHJ DB -SM Service Diagnosis Turn power supply and rotate fan by hand Does fan rotate Replace the motor smoothly? Turn power ON and operate fan Turn power supply disconnect motor connector,then turn power ON Does rotate? Check output of fan motor connector...
  • Page 68 HSU09VHJ(DB)-SM Installation Manual of Room Air Conditioner Preparation Selection of Installation Place Necessary Tools for Installation Indoor Unit - Select a location that is Torque wrench Hammer (17mm,22mm,26mm) Nipper Robust not causing vibration, where the body can be supported s...

  • Page 69: Indoor Unit

    HSU09VHJ(DB)-SM [ Left · Left-rear piping ] Accessory parts In case of left side piping, cut away, with a nipper, the lid for left piping. In case of left-rear piping, bend the pipes according to the piping direction to Drain hose (1) Remote controller (1) the mark of hole for left-rear piping which is marked on heat insulation materials.
  • Page 70 HSU09VHJ(DB)-SM Ensure that no dirt or debris enters the pipe. Outdoor unit The standard pipe length is 7m (27 9/16) . If it is over 7m (27 9/16) , the function of the unit will be affected. If the pipe has to be lengthened, the refrigerant should Indoor uni t be charged, according to 20 g/m (0.018 oz/inch).
  • Page 71 HSU09VHJ(DB)-SM No gas leakage? On Drainage In case of gas leakage, tighten parts of pipe connection. If leakage stops, Please install the drain hose so as to be downward slope without fail. then proceed Please don’t do the drainage as shown below.

  • Page 72: Removal Procedure

    Removal Procedure 9. Removal Procedure Indoor unit Removal of Air Filter Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Step 1. Features 2. Remove the air filters. Hold the front panel by the tabs on the both sides and lift it until it stops with a click.
  • Page 73 3-hooks...
  • Page 75 Pull the two bolt dowels Pull the air filters and removel them...
  • Page 76 three...
  • Page 77 Pull the two chips out from the frame...
  • Page 78 HSU09VHJ(DB)
  • Page 79 HSU09VHJ(DB) marked and pull the electrical control box cover out hooks...

  • Page 84: For Outdoor Unit

    Removal Procedure 9.2 For Outdoor unit 9.2.1 Removal of Outdoor Panel...
  • Page 85 Removal Procedure Loosen the top panel screws Lift the top panel...
  • Page 86 Removal Procedure Loosen the csrews and pull the panel...
  • Page 87 Removal Procedure 9.2.2 Removal of Electrical Box...
  • Page 88 Removal Procedure 9.2.3 Removal of Fan and Fan Motor...
  • Page 89 Removal Procedure Loosen the fixing screws and remove the motor...
  • Page 90 Removal Procedure 9.2.4 Removal of fan motor Bracket and Partition...
  • Page 91 Removal Procedure Loosen the screw and remove the reactor...
  • Page 92 Removal Procedure 9.2.5 Removal of Computor and Heat Exchanger Loosen the marked screws and pull out the backgurd...
  • Page 93 Removal Procedure Remove the compre -ssor and pipe assay Remove the conden -ser...

  • Page 94: Wiring Diagrams

    HSU09VHJ DB -SM Wiring Diagrams 10.Wiring Diagrams 10.1.INDOORUNIT RECEIVER DISPLAY Domestic Air Conditioner...

  • Page 95: Outdoor Unit

    HSU09VHJ DB -SM Wiring Diagrams 10.2.Outdoor unit CN9 CN8 AC-N AC-L CN11 CN10 CN26 CN22 CN24 CN23 MAIN CONTROL BOARD AC-N AC-L CN10 CN13 CN15 CN14 CN19 CN18 CN17 CN20 CN16 Remark the dotted parts are optional for different unit.

  • Page 96: Circuit Diagrams

    11.Circuit Diagrams 11.1.INDOORUNIT Domestic Air Conditioner...
  • Page 97 11.2.OUTDOORUNIT 11.2.1 module board Circuit Diagrams 5. 2MH/15A D207 FFA30U60DN PS21965-AT C406 C405 C404 AC -L SGH40N60UF 104/275V 104/275V 474/275V 680U/400V*2 R215 D25B X60B 0. 015/5W 0. 015/5W AC -N R214 R225 9 10 11 12 13 14 15 16 17 D206 C023 R222...
  • Page 98 +12V L7805CV E22034 102/100V Vout MBR3100\ER302 470U/25V 100U/16V 104/50V 1K/0.5W 472/1KV 104/50V ER106 +5VD 104/275V MBR1100\SB1100 20UH/1A IN5948B 5.1K/1% 470U/25V 100U/16V 222/250VAC 220 220 R18 47 CN22 +15V R90 0 102/100V MUR115\MUR130\ER106 NCP1200P100 330/1W 470U/25V 104/50V 22U/25V 5.1K/1% IRFUC20 PC817A TL431C 103/50V 104/50V...
  • Page 99 CN26 220K/2W 105/275VAC 680U/400V/450V 680U/400V/450V LED2 POWER CN24 Domestic Air Conditioner...
  • Page 100 HSU09VHJ-SM DC Inverter The series number H-heat pump Applicable voltage:V( 9000...
  • Page 101 HSU09VHJ(DB)-SM...

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