Haier HSU12XHK Service Manual

Ek-series wall mounted type air conditioner
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SERVICE MANUAL

Order No.
AC1205S001V0

Wall mounted Type

ON/OFF
EK-Series
Model No.
HSU09XHK
HSU12XHK
HSU09/12XHK
HSU09/12XHK
indoor unit and remote controller
WARNING
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
©
2012
(Qingdao Haier Air Conditioner General corp.,Ltd)
All right reserved .Unauthorized copying and distribution is a violation of law
Haier Group

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  Summary of Contents for Haier HSU12XHK

  • Page 1: Service Manual

    © 2012 (Qingdao Haier Air Conditioner General corp.,Ltd) All right reserved .Unauthorized copying and distribution is a violation of law Haier Group...
  • Page 2: Table Of Contents

    Table of Contents 1.Introduction ...................... 1 2.List of Functions ..................... 6 3.Specifications ....................7 4.Printed Circuit Board Connector Wiring Diagram ......... 9 5.Functionsand Control ................. 10 5.1 main functions and control specifications .......... 10 5.2 Value of Thermistor................6.System Configuratio n .................. 24 6.1 System Configuration ................
  • Page 3 9.1.5 Removal of Vertical Blades and Swing Motor ....... 45 9.1.6 Removal of Electrical Box ..............46 9.1.7 Removal of Heat Exchanger............. 47 9.1.8 Removal of Fan Rotor and Fan Motor ..........49 9.2 Outdoor Unit.................... 51 9.2.1 Removal of Outdoor Panel..............51 9.2.2 Removal of Electrical Box ..............
  • Page 9: List Of Functions

    HSU09/12XHK-SM F unctions H S U09XHK H S U12XHK C ategory H ealthy negative ion m ake your room full of an abundanc e natural negative ions. A void the child's w rong operation on the rem ote controller C hild lock M ake dehum iditying in the room w hen the unit is w orking in the "D R Y "...
  • Page 10: Specifications

    HSU09/12XHK-SM 3 Specifications HSU09XHK HSU12XHK Model Cooling Heating Cooling Heating 2.64 2.78 3.51 3.51 Capacity Rated(Min.~Max.) Btu/h 9000 9500 12000 12000 kal/h 2267 2393 3023 3023 Running Current(Rated Power Consumption Rated 1080 1100 (Min.~Max.) φ φ inches Piping inches φ...
  • Page 11 HSU09/12XHK-SM Outdoor Unit HSU09XHK HSU12XHK Type Rotary Compressor Rotary Compressor Compressor NMOC Ze-Gles Model NMOC Ze-Gles RB68EP RB68EP Refrigerant oil pints Refrigerant 2.07 2.92 m³/min 26.7 27.5 33.3 34.1 Air Flow Rate(H/L) 942.5 970.8 1175.5 1203.7 Type Axial fiow fan...
  • Page 12: Printed Circuit Board Connector Wiring Diagram

    HSU09/12XHK-SM Connecter Wring Diagram 4.Printed Circuit Board Connector Wiring Diagram 4.1 Indoor unit Connectors Indoor PCB 1)CN1connector for transformer. 2)CN2 connector for power line. 3)CN3 connector for transformer. 4)CN5” 1 connector for up and down step motor. 5)CN6 connector for ambient temp. sensor and piping temp.sensor. 6)CN7 connector for receiver display.
  • Page 13: Functionsand Control

    HSU09/12XHK Functions and Control 5 Functions and Control 5.1 main functions and control specifications Including brief introduction to air conditioners of series models and electric control function. 5.1.1 Automatic running mode (1) Single cold automatic run mode: After entering into this mode, the main control “MCU” determines the corresponding work pattern according to the indoor temperature so as to maintain the preset temperature (the preset temperature is 78°F).
  • Page 14 HSU09/12XHK Functions and Control speed. When Tr Ts, outlet air from compressor is off , and when Tr > Ts, outlet air from compressor is on. wind speed control: (the temperature difference is 2°F) auto: hen Tr≥Ts+9°F, the wind speed is high; When Ts+1°F dTr Ts+5°F, the wind speed is medium.
  • Page 15 HSU09/12XHK-SM Functions and Control 5.1.5 Heat in g mode: *Temperature control range : 60°F ---86°F *Temperature control precision: 2°F *Control Character: When Tr ≤ Ts, compressor, four-ways valve and outdoor fan motor is on, indoor fan motor runs as in cold , and 7°F of compensation is added after compressor is started.
  • Page 16 HSU09/12XHK Functions and Control *Current protection and current expiration protection: (Not detecting within 60 seconds after start up) *Overcooling protection One and half a minutes later after compressor starts, if the temperature of coil pipe is below 2°F, compressor and air outlet stop, and air inlet runs according to the temp. setting. Compressor can be restarted 3 minutes later.
  • Page 17 HSU09/12XHK-SM Functions and Control the indicator of indoor unit is on , and it is off when timer setting is completed. There are several timer mode as follows. 5.1.5.1 Timer on: The LED of “timer on” lights up, and unit behaves with halt status. Timer on is completed, and then unit starts running with the LED of “timer on”...
  • Page 18 HSU09/12XHK Functions and Control 5.1.7.4 Enter emergency operation from timer mode, then timer is cancelled. 5.1.8 Test run: 5.1.8.1 The temperature sensor of inlet air doesn’t work, and compressor starts (but subject to the limit of -minute delay excluding the first time), and high wind, cooling, and air door is open.The indoor fan motor runs, running indicator lights up, compressor relay and the one of outdoor fan motor is closed 5.1.8.2 During test run: The prevention of freezing of evaporator doesn’t work.
  • Page 19: Value Of Thermistor

    HSU09/12XHK Functions and Control 5.2 Value of Thermistor 5.2.1 Indoor unit Room sensor R25 =23KΩ±3.5% B25 /50 =4200K±3% Temp.( ) Max.(KΩ) Normal(KΩ) Min.(KΩ) Tolerance( ) 568.8372 501.0746 440.8435 -1.97 1.75 530.9600 468.6491 413.1441 -1.95 1.74 495.8488 438.5314 387.3645 -1.93 1.72 463.2850 410.5433 363.3602...
  • Page 20 HSU09/12XHK-SM Functions 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 43.3410 41.1509 39.0236 -1.05...
  • Page 21 HSU09/12XHK Functions 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 6.3140 5.8552 5.4230 -2.03...
  • Page 22 HSU09/12XHK Functions and Control 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 1.5180 1.3470 1.1937 -4.13 3.70 1.4726 1.3054 1.1559 -4.19 3.75 1.4287 1.2654 1.1194 -4.24...
  • Page 23 HSU09/12XHK Functions and Control Pipe Sensor R25 =10KΩ±3% B25 /50 =3700K±3% Temp.(( )) Max.(KΩ) Normal(KΩ) Min.(KΩ) Tolerance( ) 165.2170 147.9497 132.3678 -1.94 1.75 155.5754 139.5600 125.0806 -1.93 1.74 146.5609 131.7022 118.2434 -1.91 1.73 138.1285 124.3392 111.8256 -1.89 1.71 130.2371 117.4366 105.7989 -1.87 1.70...
  • Page 24 HSU09/12XHK Functions and Control 20.0176 19.0621 18.1358 -1.11 1.07 19.1149 18.2270 17.3646 -1.08 1.05 18.2580 17.4331 16.6305 -1.06 1.03 17.4442 16.6782 15.9315 -1.03 1.01 16.6711 15.9601 15.2657 -1.01 0.99 15.9366 15.2770 14.6315 -0.98 0.96 15.2385 14.6268 14.0271 -0.96 0.94 14.5748 14.0079 13.4510 -0.93...
  • Page 25 HSU09/12XHK Functions and Control 3.5374 3.3227 3.1183 -1.87 1.78 3.4195 3.2085 3.0079 -1.91 1.82 3.3060 3.0989 2.9021 -1.95 1.85 3.1969 2.9935 2.8005 -2.00 1.89 3.0919 2.8922 2.7029 -2.04 1.93 2.9909 2.7948 2.6092 -2.08 1.97 2.8936 2.7012 2.5193 -2.13 2.01 2.8000 2.6112 2.4328 -2.17...
  • Page 26 HSU09/12XHK Functions and Control 0.9232 0.8319 0.7489 -4.01 3.64 0.8983 0.8088 0.7275 -4.07 3.69 0.8741 0.7863 0.7067 -4.12 3.74 0.8507 0.7646 0.6867 -4.18 3.78 0.8281 0.7436 0.6672 -4.23 3.83 0.8061 0.7233 0.6484 -4.29 3.88 0.7848 0.7036 0.6303 -4.34 3.92 0.7641 0.6845 0.6127 -4.40...
  • Page 27: System Configuration

    HSU09/12XHK-SM System Configration 6. System Configuration 6.1 System Configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air conditioner, to check if it is capable of cooling (or heating) well, and to know a clever method of using it.In order to meet this expectation of the users, giving sufficient explanations taking enough time can be said to reduce about 80% of the requests for servicing.
  • Page 28: Parts And Functions

    Instruction HSU09/12XHK-SM Parts and Functions 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. HEALTH button 16.
  • Page 29: Emergency Operation

    HSU09/12XHK-SM Instruction Operation Emergency Operation: Use this operation only when the remote controller is defective Remote controller or lost, and with function of emergency running, air conditoner can run automatically for a while. When the emergency operation switch is pressed, the unit beeps once, which means the start of this operation.
  • Page 30: Sleep Operation

    HSU09/12XHK-SM Instruction Operation Sleep Operation In AUTO mode The unit operaters in corresponding sleep mode Press button to enter additional options, when adapted to the automatically selected operation mode. cycle display to will flash. And then press enter to sleep function. 4.
  • Page 31 HSU09/12XHK-SM Instruction Operation 1.After unit starts, select your desired operation mode. 1.Press to starting Setting the comfort work conditions. 2.Press TIMER button to change TIMER mode. Every time the button is pressed, display changes as follows: 2.The setting of healthy airflow function Remote controller: Press button to enter additional options,Press this...
  • Page 32 HSU09/12XHK-SM Instruction 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 33 HSU09/12XHK-SM Instruction Cautions WARNING This system should be installed by a qualified HVAC professional. Do not attempt to install the air conditioner by yourself because improper works may cause fire, water leakage, personal injury or cleath. WARNING Check proper When abnormality such as burnt-small found, Use an exclusive immediately stop the operation button and power source...
  • Page 34: Trouble Shooting

    HSU09/12XHK-SM Instruction Trouble shooting Cautions Do not obstruct or cover the ventilation grille of the air or any other things into the conditoner.Do not put fingers inlet/outlet and swing louver. Phenomenon Cause or check points Do not allow children to play with the air conditioner .In no When unit is stopped, it won't restart case should children be allowed to sit on the outdoor unit.
  • Page 35: Codes And Description

    HSU09/12XHK-SM Codes and Description 7.Codes and Description 7.1.Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated Check the power supply voltage is supplied. None units Check to make sure that the indoor PCB operates Check the indoor PCB is broken...
  • Page 36 HSU09/12XHK-SM Codes and Description Pull the sensor out of the mainboard Measure the value of resistance Between its two jumpers Measure the temperature at the room temperature sensing head. Check the value of the Sensor is broken,replace it with new sensor sensor to see whether the sensor is damaged or not? The indoor PCB is broken, replace with new indoor PCB...
  • Page 37 HSU09/12XHK-SM Codes and Description whether terminal CN8 Pull out and reinsert the terminals and CN9 on indoor PCB well inserted or not? Electrify the machine again and turn it on in the cooling operation the indoor mainboard is damaged and need replace Measure whether there is voltage 60VAC-115VAC between the red wire and the black wire of Terminal CN9 on the indoor mainboard.
  • Page 38: Installation Manual Of Room Air Conditioner

    HSU09/12XHK-SM Installations 8 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 sufficiently. Hacksaw Pipe cutter Not affected by heat or steam generated in the vicinity, where inlet and outlet of the...
  • Page 39: Indoor Unit

    Installations HSU09/12XHK-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 40: Outdoor Unit

    Use lock nuts to secure conduit tubes. Power cable: 2wire with ground 16AWG HSU12XHK 1. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V(indoor unit),25A/250V(outdoor unit). 2. The wiring method should be in line with the local wiring standard.
  • Page 41 HSU09/12XHK-SM Installations No gas leakage? On Drainage In case of gas leakage, tighten parts of pipe connection. If leakage stops, step 6. If leak continues, remove the refrigerant used for the Please install the drain hose so as to be downward slope without fail. then proceed leakage check and flare tubes again.
  • Page 42: Removal Procedure

    HSU09/12XHK-SM 9.1.1...
  • Page 43 HSU09/12XHK-SM...
  • Page 44: Removal Of Front Panel

    HSU09/12XHK-SM Removal Procedure 9.1.2 Removal of Front Panel Open the 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.
  • Page 45 HSU09/12XHK-SM Removal Procedure HOOKS three...
  • Page 46: Removal Of Horizontal Flap

    HSU09/12XHK-SM Removal Procedure Removal of horizontal flap flap flap flap flap...
  • Page 47: Removal Of Drain Pan

    HSU09/12XHK-SM Removal Procedure...
  • Page 48: Removal Of Vertical Blades And Swing Motor

    Removal Procedure HSU09/12XHK-SM...
  • Page 49: Removal Of Electrical Box

    HSU09/12XHK-SM Removal Procedure...
  • Page 50: Removal Of Heat Exchanger

    HSU09/12XHK-SM Removal Procedure...
  • Page 51 HSU09/12XHK-SM Removal Procedure...
  • Page 52: Removal Of Fan Rotor And Fan Motor

    HSU09/12XHK-SM Removal Procedure...
  • Page 53 HSU09/12XHK-SM Removal Procedure...
  • Page 54: Outdoor Unit

    HSU09/12XHK-SM 9.2 Outdoor unit 9.2.1 Outdoor panel...
  • Page 55 HSU09/12XHK-SM...
  • Page 56 HSU09/12XHK-SM...
  • Page 57 HSU09/12XHK-SM...
  • Page 58: Removal Of Electrical Box

    HSU09/12XHK-SM 9.2.2...
  • Page 59: Removal Of Fan And Fan Motor

    HSU09/12XHK-SM 9.2.3...
  • Page 60: Removal Of Fan Motor Bractek And Exchanger

    HSU09/12XHK-SM 9.2.4...
  • Page 61 HSU09/12XHK-SM...
  • Page 62: Removal Of Compressor And Heat Exchanger

    HSU09/12XHK-SM 9.2.5...
  • Page 63 HSU09/12XHK-SM...
  • Page 64: Appendix

    x i d HSU09/12XHK-SM 10. Appendix 10.1 Piping Diagrams...
  • Page 69: Circuit Diagram

    S5B-PH CN5''(1) +12V +12V 3.3K 3.3K +12V CN5'' 1_8_D 1_27_RXD1 3.3K 3.3K 1_7_C CN36 RLS4148 step m otor 1_6_B SS8050LT1 B3B-XH-A 2SA1037AK S5B-PH 1_5_A R39 2K RLS4148 100nF 1_26_TXD1 ULN2003A 4.7K SS8050LT1 +12V 100nF +12V BUZZ JTP1288LA COM P SNI2/X1A/PG2 ICON SNI1/X0A/PG1 X1/PF1...
  • Page 70: Description Of Codingrules Of Unit Model

    HSU09/12XHK-SM The series number H-Heating pump Applicable voltage:X(115V) 9000 HSU12XHK means 12000BTU.
  • Page 71 HSU09/12XHK-SM Cui Wenjuan Wu Hongjin...

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