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Haier HSU09 VHG(DB)-G&W Service Manual

Ek-series wall mounted type air conditioner
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SERVICE MANUAL

Order No. AC1011S00 V0
HSU09 VHG(DB)-G&W
indoor unit and remote controller
outdoor unit
2011
Haier Group

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  Summary of Contents for Haier HSU09 VHG(DB)-G&W

  • Page 1: Service Manual

    SERVICE MANUAL Order No. AC1011S00 V0 HSU09 VHG(DB)-G&W indoor unit and remote controller outdoor unit 2011 Haier Group...
  • Page 2 HSU09VHG(DB)-SM of indoor unit main function and control specification of outdoor unit Removal of Air Filter Removal of Front panel ……………………………… Horiaontal Blade and Front Grill ………………………………………………………… Drain pan ……………………………… Vertical Blades and Swing Motor …………………………………………………… ………………………………………………… ………………………………………...
  • Page 3: Table Of Contents

    HSU09VHG(DB)-SM …………………………………………………… Removal of Outdoor panel …………………………………………………… 9.10 Removal of Electrical Box ……………………………………………… 9.11 Removal of Fan and Fan motor ……………………………… Removal of fan motor bracted and partition 9.12 ……………………………… Removal of compressor and heat exchanger 9.13 ……………………………………………………………… Wiring Diagrams ……………………………………………………………………...
  • Page 4: Safety Cautions

    HSU09VHG(DB)-SM Introduction 1. Introduction 1.1 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.
  • Page 5: Cautions Regarding Products After Repair

    HSU09VHG(DB)-SM Introduction Warning Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
  • Page 6 HSU09VHG(DB)-SM Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.
  • Page 7: Inspection After Repair

    HSU09VHG(DB)-SM Introduction Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site, to prevent electrical shocks. Do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire.
  • Page 8 HSU09VHG(DB)-SM Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.
  • Page 9 HSU09VHG(DB)-SM Functions HSU099HG(DB) Category make your room full of an abundance natural negative ions. Healthy negative ion Child lock Avoid the child's wrong operation on the remote controller The 3D airflow is able to deliver the airflow horizontally and vertically. 3D air flow Use the timer function to set on,or off,or from on to off,or from off to on 24Hour timer...
  • Page 10 HSU09VHG(DB)-SM HSU09VHG(DB) 2.6(1.3~3.4) 2.9(1.4~3.8) 8800(4400~11600) 9900(4700~13000) 2236(1118~2924) 2494(1204~3268) pints/hr 2.11 670(320~1080) 740(330~1180) 3.88 3.92 inches inches inches feet 49 3/16 feet 32 13/16 22 15/16 feet 0.018 OZ/inches 0.15 0.15 inches 31 5/16 x 10 7/16 x 7 3/8 inches 34 5/16 x 14 3/16 x 11 15/16 19.40 24.91...
  • Page 11 HSU09VHG(DB)-SM HSU099HG(DB) DA89X1C-20FZ ESTER IL VG74 pints 0.65 R410a 22.93 inches 30 11/16 x 9 5/8 x 21 1/4 inches 36 5/8 x 13 3/8 x 24 3/16 70.99 77.16 16 3/8 feet...
  • Page 12: Printed Circuit Board Connector Wiring Diagram

    HSU09VHG(DB)-SM Wiring Diagrams 4.Printed Circuit Board Connector Wiring Diagram Indoor unit Connectors Connectors PCB(1) (Control PCB) For HSU099HG(DB) 1) CN26 Connector for fan motor 2) CN1 Connector for heat exchanger thermistor and Room temperature thermistor 3) CN11 Connector for UP&DOWN STEP motor 4) CON2 Connector for power N wire 5) CON1 Connector for power L 6) CN32 Connector for display board...
  • Page 13 HSU09VHG(DB)-SM Wiring Diagrams PCB(1) CN26 CN27 CN11 CN32 CN20 CON1 CON2 CON6 CN34 CON8 CON7 Domestic Air Conditioner...
  • Page 14 HSU09VHG(DB)-SM Wiring Diagrams 4.2: outdoor unit Connectors PCB(1) (Control PCB) 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) CN9,CN8 Connector for CN2,CN1 on the module board 5) CN21 Connector for fan motor 6) CN10 Connector for four way valve coil 7) CN17,CN18,CN19, CN20 Connector for thermistors...
  • Page 15 HSU09VHG(DB)-SM Wiring Diagrams PCB(1) CN26 CN24 CN23 CN22 CN21 CN17 CN18 CN19 CN20 CN16 CN10 Domestic Air Conditioner...
  • Page 16 HSU09VHG(DB)-SM Wiring Diagrams CN11 CN10 Domestic Air Conditioner...
  • Page 17: Funcitions And Control

    HSU09VHG(DB)-SM Funcitions and Control 5.Funcitions and Control 5.1 Main functions and control specification of indoor unit 5.1.1 Automatic operation When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode.
  • Page 18: Heating Operation Mode

    HSU09VHG(DB)-SM Funcitions and Control 5.1.3 Demoisture mode. * temperature control range: 16---30 * temperature difference: Control feature: send the demoisture signal to the outdoor system. When Tr>Ts+2 , the compressor will be turned on, the indoor fan will operate at the set speed. When Tr is between the Ts and Ts+2 , the outdoor system will operate at the high demoisture frequency for 10 minutes and then at the low demoisture mode for six minutes.
  • Page 19 HSU09VHG(DB)-SM Funcitions and Control *Indoor fan control manual control: You can choose high, medium, low and automatic speed control. Automatic: When Tr<Ts, high speed. When Ts≤Tr≤Ts+2 , medium speed. When Tr> Ts+2 , low speed. When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3 minutes (remain at high speed for 3 minutes.) before the next switch.
  • Page 20 HSU09VHG(DB)-SM Funcitions and Control 5.1.5 strength operation a. the system enters the mode after receiving the ‘strength signal’. Send strength operation signal to the outdoor system. The mode change finishes the strength operation. Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strength operation.
  • Page 21 HSU09VHG(DB)-SM Funcitions and Control 5.1.9 Dormant operation The dormant timing is an eight hours unadaptable one. The timing signs are shown on the V series board. (RC series show the dormant signal, the timing light is lighted on the 6 lights board). 2.1 Under the cooling/ demoisture operation, after the setting of the dormant operation, the set temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade 1 hour later.
  • Page 22 HSU-09VHG(DB)-SM Funcitions and Control 5.1.10 Urgent on/off input Press the urgency button the buzzer will ring. The system will enter the automatic mode if you don’t press the button for more than 5 seconds. Under the system off mode, if you press the urgency key for 5 to 10 seconds, the system will start the test operation.
  • Page 23 HSU-09VHG(DB)-SM Funcitions and Control 5.1.13 abnormal operation of indoor system When the outdoor system operates, if the indoor system operation differs from the outdoor system, the abnormal operation malfunction will be reported. 10s after the report, the indoor system will be closed.
  • Page 24 HSU09VHG(DB)-SM Funcitions and Control * After the system enters the separate indoor system operation mode, the indoor system will operate according to the set mode and neglect the communication signals of the outdoor system. However, it has to send signals to the outdoor system. * Quitting condition: This mode can be quitted after receiving the quitting signal from the remote control or urgency system.
  • Page 25: The Control System Of Outdoor Unit

    HSU09VHG(DB)-SM Functions and control white—the background light turns to white—the background light is fully lighted for 0.5 second—LED screen lights for 0.5 second— the step-in motor fully output for 0.5 second—then the motor doesn’t output for 0.5 second—the motor fully output again for 0.5 second. The test program finishes. 5.1.20 Time cutting function: connect the test program terminal on the mainboard after connecting the system to the power circuit.
  • Page 26 HSU09VHG(DB)-SM Functions and control Wh_c<12 Max_hz1 80HZ Wh_c<17 Max_hz2 70 HZ Wh_c<20 Max_hz2 55 HZ ≥ Max_hz6 45 HZ Wh_c Remarks: the above are the maximum frequency limitations of the complete appliance which are affected by the environment, and they have nothing to do with the ability of the indoor unit. Refrigeration/dehumidification mode:: Serial No.
  • Page 27: The Outdoor Fan Control (Exchange Fan)

    HSU09VHG(DB)-SM Functions and control 5.2.2 The outdoor fan control (exchange fan) When the fan is changed among every airflow speed (including stop blowing), in order to avoid the airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and then it can be changed to another mode (when refrigerating, the time is changed to 15 seconds).
  • Page 28: Protection Function

    HSU09VHG(DB)-SM Functions and control 5.2.4 Four way control For the details of defrosting four-way valve control, see the defrosting process. Four way working in other ways: Under the mode of heating, open the four-way valve, when the compressor is not started or changed to non-heating mode, make sure the compressor is stoped for 2 minutes, and then close the four-way valve.
  • Page 29 HSU09VHG(DB)-SM Functions and control 5.2.5.2 TC high temperature-preventing control of the indoor heating unit Tpg_indoor is the highest value of the effective indoor unit (start it and it is in accord with the running state). The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the temperature is higher than 55 , decrease the rotate speed of the compressor and do the high temperature-preventing protection of the indoor heat exchanger;...
  • Page 30 HSU09VHG(DB)-SM Functions and control 5.2.5.4 The protection function of AC current: During the starting process of the compressor, if the AC current is greater than 15A, the frequency of the compressor decreases at the speed of 1HZ/second. During the starting process of the compressor, if the AC current is greater than 13A, the frequency of the compressor decreases at the speed of 0.1HZ/second.
  • Page 31 HSU09VHG(DB)-SM Functions and control 5.2.5.6 The frequency limitation of modification rate In the field which is controlled by high frequency, if the modification rate is not high enough, the control-driven chip will enter into weak magnetic control, this will help to relieve the problem of modification rate.
  • Page 32 HSU09VHG(DB)-SM Value of Thermistor ---- Loop of the station detect error High work-intense protection Overcurrent of the compressor Overcurrent protection for single-phase of the compressor ---- The socket protect 5.3 Value of Thermistor 5.3.1 intdoor Unit Room sensor and Pipe Sensor R25 =10K B25 /50 =3700K 3% Temp.(( ))
  • Page 33 HSU09VHG(DB)-SM Value of Thermistor 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 26.5605 25.0851 23.6704 -1.25 1.20 25.3193 23.9462 22.6273 -1.23 1.18 24.1432 22.8656 21.6361 -1.20 1.16 23.0284 21.8398 20.6939 -1.18 1.14 21.9714 20.8659 19.7982 -1.15...
  • Page 34 HSU09VHG(DB)-SM Value of Thermistor 4.6708 4.4252 4.1887 -1.53 1.47 4.5083 4.2666 4.0342 -1.57 1.51 4.3524 4.1145 3.8862 -1.61 1.55 4.2026 3.9686 3.7443 -1.65 1.59 4.0588 3.8287 3.6084 -1.70 1.62 3.9206 3.6943 3.4780 -1.74 1.66 3.7878 3.5654 3.3531 -1.78 1.70 3.6601 3.4416 3.2332 -1.82...
  • Page 35 HSU09VHG(DB)-SM Value of Thermistor 1.1223 1.0174 0.9215 -3.64 3.33 1.0910 0.9882 0.8942 -3.69 3.37 1.0607 0.9599 0.8679 -3.74 3.42 1.0314 0.9326 0.8424 -3.80 3.46 1.0030 0.9061 0.8179 -3.85 3.51 0.9756 0.8806 0.7941 -3.90 3.55 0.9490 0.8558 0.7711 -3.96 3.60 0.9232 0.8319 0.7489 -4.01...
  • Page 36 HSU09VHG(DB)-SM Value of Thermistor 103.3598 93.8305 85.1031 -1.80 1.64 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...
  • Page 37 HSU09VHG(DB)-SM Value of Thermistor 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 8.4583 8.1621 7.8691 -0.91...
  • Page 38 HSU09VHG(DB)-SM Value of Thermistor 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 1.8533 1.7064 1.5697 -2.78 2.58 1.7974 1.6533 1.5194 -2.83...
  • Page 39 HSU09VHG(DB)-SM Value of Thermistor 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 0.5460 0.4841 0.4288 -5.16 4.60 0.5325 0.4717 0.4175 -5.22 4.65 0.5194 0.4597 0.4066 -5.28...
  • Page 40 HSU09VHG(DB)-SM Value of Thermistor 2045.9191 1784.3336 1554.7931 -2.52 2.21 1932.0242 1687.8144 1473.1460 -2.50 2.20 1825.0899 1597.0431 1396.2333 -2.48 2.19 1724.6540 1511.6468 1323.7551 -2.47 2.17 1630.2870 1431.2787 1255.4324 -2.45 2.16 1541.5904 1355.6163 1191.0048 -2.43 2.15 1458.1938 1284.3593 1130.2298 -2.41 2.14 1379.7528 1217.2282 1072.8813 -2.40...
  • Page 41 HSU09VHG(DB)-SM Value of Thermistor 208.7855 194.6066 181.2273 -1.65 1.55 199.6531 186.3369 173.7524 -1.63 1.54 190.9639 178.4584 166.6217 -1.60 1.52 182.6945 170.9508 159.8181 -1.58 1.50 174.8228 163.7951 153.3249 -1.56 1.48 167.3280 156.9733 147.1268 -1.53 1.46 160.1904 150.4683 141.2090 -1.51 1.44 153.3914 144.2641 135.5577 -1.49...
  • Page 42 HSU09VHG(DB)-SM Value of Thermistor 35.1903 33.7653 32.3689 -1.22 1.19 34.0269 32.6151 31.2338 -1.26 1.23 32.9075 31.5096 30.1438 -1.30 1.27 31.8302 30.4467 29.0970 -1.33 1.30 30.7933 29.4246 28.0915 -1.37 1.34 29.7950 28.4417 27.1254 -1.41 1.37 28.8337 27.4961 26.1970 -1.45 1.41 27.9078 26.5864 25.3048 -1.49...
  • Page 43 HSU09VHG(DB)-SM Value of Thermistor 8.9824 8.2623 7.5931 -3.14 2.92 8.7404 8.0329 7.3760 -3.19 2.96 8.5059 7.8108 7.1660 -3.24 3.00 8.2787 7.5958 6.9629 -3.29 3.04 8.0584 7.3875 6.7664 -3.33 3.09 Domestic Air Conditioner...
  • Page 44 HSU09VHG(DB)-SM...
  • Page 45: Parts And Functions

    HSU09VHG(DB)-SM System Configration Parts and Functions Remote controller Indoor Unit Additional functions display Supplemented electrical Operation mode QUITE SLEEP HEALTH POWER heating Remote controller 9. QUIET button 10. HEAT button 11. COOL button 12. AUTO button 13. FAN button 14. TIMER button 15.
  • Page 46: Emergency Operation

    HSU09VHG(DB)-SM Function and control Operation Emergency Operation: Use this operation only when the remote controller is defective or lost, and with function of emergency running, air conditoner Remote controller can run automatically for a while. When the emergency operation switch is pressed, the " Pi " sound is heard once, which means the start of this operation.
  • Page 47: Sleep Operation

    HSU09VHG(DB)-SM Function and control Operation Sleep Operation 4. In FAN mode It has no SLEEP function. Press button to enter additional options, when 5.Set the wind speed change when sleeping cycle display to will flash. And then press If the wind speed is high or middle before setting for the enter to sleep function.
  • Page 48 HSU09VHG(DB)-SM Function and control EUROPEAN REGULATIONS Operation CONFORMITY FOR THE MODELS All the products are in conformity with the following European provision: 1.After unit starts, select your desired operation mode. - Low Voltage Directive 73/23/EEC 2.Press TIMER button to change TIMER mode. Every - Low Voltage Directive 2006/95/EC time the button is pressed, display changes as follows: -Electomagnetic CompatibilitY 89/336/EEC...
  • Page 49 HSU09VHG(DB)-SM Introduction Maintenance 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 temperature soft and dry cloth.For serious stains, use a neutral detergent diluted with Do not usewater,wipe the controller water.Wring the water out of the with a dry cloth.Do not use glass...
  • Page 50 HSU09VHG(DB)-SM Introduction 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, Use an exclusive immediately stop the operation button and installation of the...
  • Page 51: Trouble Shooting

    HSU09VHG(DB)-SM Introduction Trouble shooting Cautions grille of the air Do not obstruct or cover the ventilation conditoner.Do not put fingers or any other things into the inlet/outlet and swing louver. .In no Do not allow children to play with the air conditioner Phenomenon Cause or check points case should children be allowed to sit on the outdoor unit.
  • Page 52: Service Diagnosis

    HSU09VHG(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. 2.When a signal transmission error occurs between the indoor and outdoor units.In either case, conduct the diagnostic procedure described in the following pages.
  • Page 53: Error Codes And Description Indoor Display

    HSU09VHG(DB)-SM Service Diagnosis 7.4.Error Codes and Description indoor display Code indication Indoor Reference Outdoor fault description displaying Page (LED1 flash panel code times) indication Indoor Communication fault between indoor and Page .60 Outdoor outdoor units Room temperature sensor failure Page .51 Indoor Malfunction Heat-exchange sensor failure Page .51...
  • Page 54: Thermistor Or Related Abnormality

    HSU09VHG(DB)-SM Service Diagnosis 7.4.1 Thermistor or Related Abnormality Indoor Display E1: Room temperature sensor failure E2: Heat-exchange sensor failure outdoor display LED1 flash 10 times Defrost temperature sensor failure LED1 flash 11 times Suction temperature sensor failure LED1 flash 12 times Ambient temperature sensor failure LED1 flash 13 times Discharge temperature sensor failure Method of The temperatures detected by the thermistors are used to determine thermistor errors...
  • Page 55: Eeprom Abnormal

    HSU09VHG(DB)-SM Service Diagnosis 7.4.2 EEPROM abnormal Indoor Display E4: indoor EEPROM error Indoor display F12: Outdoor EEPROM error ;Outdoor LED1 flash 1 times Method of The Data detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
  • Page 56: Indoor Ac Fan Motor Malfunction

    HSU09VHG(DB)-SM Service Diagnosis 7.4.3 Indoor AC fan motor malfunction Indoor Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation Detection Malfunction when the detected rotation feedback singal don’t receiced in 2 minutes Decision Conditions Supposed...
  • Page 57: Outdoor Dc Fan Motor Fault

    HSU09VHG(DB)-SM Service Diagnosis 7.4.4 Outdoor DC fan motor fault Check whether Terminal on the outdoor mainboard is well inserted. Reinsert the terminals Is it normal? Electrify the machine again and turn it on in the Cool state with the remote controller.
  • Page 58: Ipm Protection

    HSU09VHG(DB)-SM Service Diagnosis 7.4.5 IPM protection Outdoor display LED1 flash 2 times Method of IPM protection is detected by checking the compressor running condition and so on Malfunction Detection Malfunction ■ The system leads to IPM protection due to over current ■...
  • Page 59 HSU09VHG(DB)-SM Service Diagnosis 7.4.6 Over-current of the compressor Outdoor Display LED1 flash 3 or 24 or 25 times Method of The current of the compressor is too high Malfunction Detection Malfunction when the IPM Module is damaged Decision or the compressor is damaged Conditions power supply.
  • Page 60: The Communication Fault Between Ipm And Outdoor Pcb

    HSU09VHG(DB)-SM Service Diagnosis 7.4.7 The communication fault between IPM and outdoor PCB Outdoor display LED1 flash 4 times Method of Communication is detected by checking the IPM module and the outdoor PCB Malfunction Detection Malfunction ■ The outdoor PCB broken leads to communication fault ■...
  • Page 61 HSU09VHG(DB)-SM Service Diagnosis 7.4.8 Power Supply Over or under voltagve fault outdoor display: LED1 flash 6 times The power supply is over voltage Method of An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit. Malfunction Detection Malfunction...
  • Page 62 HSU09VHG(DB)-SM Service Diagnosis 7.4.9 Overheat Protection For Exhaust Temperature outdoor display LED1 flash 8 times Method of The discharge temperature control is checked with the temperature being detected Malfunction by the exhaust pipe thermistor Detection Malfunction when the compressor discharge temperature is above 110 Decision Conditions Supposed...
  • Page 63: The Communication Fault Between Indoor And Outdoor

    HSU09VHG(DB)-SM Service Diagnosis 7.4.10 The communication fault between indoor and outdoor Indoor display outdoor display LED1 flash 15 times Method of Communication is detected by checking the indoor PCB and the outdoor PCB Malfunction Detection ■ The outdoor PCB broken leads to communication fault Malfunction Decision ■...
  • Page 64 HSU09VHG(DB)-SM Service Diagnosis The outdoor mainboard needs Restart the a/c and it dehumidification. becomes normally. If starting up normally, but The outdoor mainboard needs malfunction occurs again after a dedust. while Check whether the linking cable 1. Reconnect the linking cable; between the indoor and outdoor is well 2.
  • Page 65 HSU09VHG(DB)-SM Service Diagnosis Check the indoor mainboard. measure the voltage between Jumpers 3 and 4 of IC1 on the indoor mainboard with a multimeter. Test the outdoor power supply (230VAC and +310VDC) with a multimeter. If the voltage is of a constant value of 0V DCto5V DC If 230VAC is available but 310DC not, the power module is damaged, replace it...
  • Page 66: Loss Of Synchronism Detection

    HSU09VHG(DB)-SM Service Diagnosis 7.4.11 Loss of synchronism detection Inverter side current detection is abnoraml Outdoor Display LED1 flash 18 times LED1 flash 19 times Method of The position of the compressor rotor can not detected normally Malfunction Detection Malfunction when the wiring of compressor is wrong or the connection is poor; Decision or the compressor is damaged Conditions...
  • Page 67 HSU09VHG(DB)-SM Service Diagnosis 7.4.12 High work-intense protection Outdoor display LED1 flash 21 times Method of High work-intense control is activated in the heating mode if the temperature Malfunction being sensed by the heat exchanger thermistor exceeds the limit. Detection Malfunction Activated when the temperature being sensed by the heat exchanger Decision rises above 65...
  • Page 68: Installation Manual Of Room Air Conditioner

    HSU09VHG(DB)-SM I nstallation 8 Installation Installation Manual of Room Air Conditioner Preparation Selection of Installation Place Necessary Tools for Installation Torque wrench Indoor Unit Driver (17mm,22mm,26mm) Nipper Place, robust not causing vibration, where the body can be supported sufficiently. Hacksaw Pipe cutter Place, not affected by heat or steam generated in the vicinity, where inlet and outlet of Hole core drill...
  • Page 69: Indoor Unit

    Installation HSU09VHG(DB)-SM 1. Insert the drain hose into the dent of heat insulation materials of indoor unit. Accessory parts 2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then connect them. 3.
  • Page 70: Outdoor Unit

    HSU09VHG(DB)-SM Installation 1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F. 2. If the fuse on PC board is broken please change it with the type of T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor).
  • Page 71 Installation HSU09VHG(DB)-SM Attaching Drain-Elbow 1.Cut pipe 2.Remove burs Flare tooling die If the drain-elbow is used, please attach it as gure. (Note: Only for heat pump unit.) Purging Method:To use vacuum pump 3.Insert the are nut 4.Flare pipe Detach the service port’s cap of 3-way valve, the valve rod’s cap for 2-way valve and 3-way’s, connect the service port into the projection of charge hose (Iow) for gaugemanifold.
  • Page 72 Removal Procedure HSU09VHG(DB)-SM Domestic air conditioner...
  • Page 73 Removal Procedure HSU09VHG(DB)-SM Please embed the air filters into the unit along the grooves as installation. Please embed the two hooks on air filter completely into the unit during installation. Domestic air conditioner...
  • Page 74 Removal Procedure HSU09VHG(DB)-SM 9.2 Remocal of front panel until it is on the horizontal position, and then release the pivots on both sides of the unit to remove the front panel. Please close the panels before start the removal procedure of front grille. one side to another to release each axis.
  • Page 75 Removal of procedure HSU099HG(DB)-SM HOOKS three Domestic air conditioner...
  • Page 76 Removal of procedure HSU09VHG(DB)-SM horizontal flap horizontal flap flap flap flap flap flap flap flap flap Domestic air conditioner...
  • Page 77 Removal of procedure HSU09VHG(DB)-SM Domestic Air Conditioner...
  • Page 78 Removal of procedure HSU09VHG(DB)-SM Domestic Air Conditioner...
  • Page 79 HSU09VHG(DB)-SM Removal of Electrical Box Domestic air conditioner...
  • Page 80: Removal Of Heat Exchanger

    Removal of Heat Exchanger HSU09VHG(DB)-SM 9.7 Removal of Heat Exchanger Domestic Air Conditioner...
  • Page 81 HSU09VHG(DB)-SM Removal of procedure Domestic Air Conditioner...
  • Page 82: Removal Of Fan Rotor And Fan Motor

    Removal of procedur e HSU09VHG(DB)-SM 9.8 Removal of Fan Rotor and Fan Motor Domestic Air Conditioner...
  • Page 83 HSU09VHG(DB)-SM Removal of procedure Domestic Air Conditioner...
  • Page 84: Removal Of Outdoor Panel

    HSU09VHG(DB)-SM Removal Procedure 9.9 Removal of Outdoor panel Domestic Air Conditioner...
  • Page 85 Removal Procedure HSU09VHG(DB)-SM Domestic Air Conditioner...
  • Page 86 HSU09VHG(DB)-SM Removal Procedure...
  • Page 87: Removal Of Electrical Box

    Removal Procedure HSU09VHG(DB)-SM 9.10 Removal of Electrical Box...
  • Page 88: Removal Of Fan And Fan Motor

    Removal Procedure HSU09VHG(DB)-SM 9.11 Removal of Fan and Fan Motor Domestic Air Conditioner...
  • Page 89 HSU09VHG(DB)-SM Removal Procedure 9.12 Removal of fan motor bracket and partition...
  • Page 90: Removal Of Compressor And Heat Exchanger

    Removal Procedure HSU09VHG(DB)-SM 9.13 Removal of compressor and heat exchanger...
  • Page 91 Removal Procedur e HSU09VHG(DB)-SM...
  • Page 92: Wiring Diagrams

    HSU09 VHG(DB) Wiring Diagrams 10.Wiring Diagrams 10.1. INDOOR UNIT Domestic Air Conditioner...
  • Page 93: Wiring Diagrams

    HSU09 V HG(DB) 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. Domestic Air Conditioner...
  • Page 94: Indoor Unit

    HSU09 VHG(DB) Wiring Diagrams 11.Circuit Diagrams 11.1.INDOOR UNIT +12V R16 1K R68 10K TSVC-1 0.1UF CN13 0.01UF SW1-1 TEST JTP1288LA 2SC2412 B2B-XH-A JSS1270 3.3K 0.1UF AT24C02B COM2 R301 COM3 R18 4.7K 2SC2412 B8B-PH R302 JSS1270 3.3K R110 CN11 0.1UF FCR8.0MC5 ULN2003 0.01UF CN9-1...
  • Page 95: Outdoor Unit

    HSU09V HG(DB) Wiring Diagrams 11.2.OUTDOORUNIT 11.2.1Control Bard Circuit Diagrams COM heater AC-L AC-N AC-N OUT AC-L OUT Four -Way Comment: CN25 CN11 CN27 CN36 Three-speed AC Fan Two-speed AC Fan CN14 CN15 White Black C COM FUSE1 PTC1 J24 J25 J26 J27 Black 2U/450V FUSE2...
  • Page 96 HSU 09 VHG(DB) Wiring Diagrams CN26 250 Connector 220K/2W 105/275VAC 680U/400V/450V 680U/400V/450V LED2 POWER 250 Connector CN24 11.2.2 module board Circuit Diagram 5.2M H/15A C N7 C N6 C N1 C N2 D207 FF A30U60DN PS21964-AT/AST/PS219A4-ASTX C N8 C N3 IC 8 AC-L C 405...
  • Page 97: Description Of Coding Rules Of Unit Model

    20. Description of coding rules of unit model DC Inverter Refrigerant type:R2(R410A) Applicable voltage:3(220~240V) Applicable frequency:0(50HZ) apparance of indoor unit is EK series H-heat pump Nominal cooling capacity (9000 BTU/h) The structure code of indoor unit: S(wall-mounted) H-Abbreviation of Haier HSU-09HEG03/R2(DB) means 9000BTU. Domestic Air Conditioner...
  • Page 98 HSU099HG(DB)-SM The end Sincere Forever Haier Group Shi Longfei Yu Huali Wang fei 86 532 88936935 Wu Hongjin...