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Haier HSU18VHK-G Service Manual

Ek-series wall mounted type
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SERVICE MANUAL

Order No.

Wall mounted Type

ON/OFF
-Series
EK
Model No.HSU18VHK-G&W
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 HSU18VHK-G

  • Page 1: Service Manual

    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...
  • Page 2: Table Of Contents

    Table of Contents 1.Features...................... 1 2.Introduction ....................2 3.Specifications ..................... 7 4.Printed circuit board connector wiring diagram ........9 5.Functions and control ................10 5.1 Main functions and control specification ..........10 5.2 Value of thermistor ................... 15 6. System configuration ................23 6.1 System configuration ................
  • Page 3: Features

    Features 1. Features Intelligent air With twin-blade technology ,the airflow can be adjusted not to blow directly to human ESF filter : Trap harmful dust and remove unpleasant odors effectively DRY function: Make dehumidifying in the room when the unit is working in the "DRY" mode Anti-mold filter: Catches most small particles and remove unpleasant odors effectively Sleep mode: The setting temprature and the indoor noise can be adjusted to a more comfortable level when you set the "sleep mode"during night sleep...
  • Page 4: Introduction

    Introduction 2. Introduction 2.1 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

    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 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 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 8: Using Icons

    Introduction 2.1.4 Using Icons Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: 2.1.5 Using Icons List Icon Type of Information Description A “note” provides information that is not indispensable, but may Note: Note nevertheless be valuable to the reader, such as tips and tricks.
  • Page 9: Specifications

    Specifications HSU18VHK-G&W Model Cooling Heating 5128/5274 5128/5274 17500/18000 17500/18000 208/230V 3.52 PINT/h 3.52 8.01/7.45 8.01/7.45 1600/1645 1600/1645 EER/COP BTU/(H*W) 10.94 10.94 0.25 0.50 0.63 Both Liquid and Gas Pipes 1bs/in 1.12 Indoor Unit HSU18VHK-G White Cross Flow Fan 3 Steps, Silent, Auto...
  • Page 10 Specifications Outdoor Unit HSU18VHK-W White Rotary Compressor PA165M2C-3ETU 1625/1635 ESTER OIL VG74 0.48 R410A 18.3 568.3 Axial fan 7.45 1645 33.86x12.13x28.74 39.17x16.54x32.09 106.48 113.10 Conversion Formulate Heating Indoor:95 FDB/71 Indoor:73 3413 196.85 IN Outdoor:121 FDB/85 Outdoor:31 FDB/28 Domesfication Air Conditioner...
  • Page 11: Printed Circuit Board Connector Wiring Diagram

    Connector Writing Diagram 4. Printed Circuit Board Connector Wiring Diagram 4.1 Indoor unit Connectors Indoor PCB CN26 CN11 connector for power line L 2) connector for DC fan motor 3) connector for step motor CN32 CN48 connector for receiver display 5) connector for Emergency switch 6) connector for CN54...
  • Page 12: Functions And Control

    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 5.1.1.1 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 When the indoor temperature is below , outlet air from compressor is off, the automatic wind from fan...
  • Page 13 Functions and Control Domestic Air Conditioner...
  • Page 14 Functions and Control Domestic Air Conditioner...
  • Page 15 Function and Control Domestic Air Conditioner...
  • Page 16 Functions and Control 5.1.6 Timer function: You can set 24-hour timer on or timer off as required, and the minum time unit is 1 minute. After setting, the indicator of indoor unit is on , and it is off when timer setting is completed. There are several timer mode as follows.
  • Page 17: Value Of Thermistor

    Functions and Control 5.1.8.4 Enter emergency operation from timer mode, then timer is cancelled. 5.1.9 Test run: 5.1.9.1 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 5.1.9.2 During test run: The prevention of freezing of evaporator doesn’t work.
  • Page 18 Functions and Control 199.8093 181.4531 164.5813 -2.99 2.75 187.8698 170.9169 155.3033 -2.95 2.72 176.7176 161.0578 146.6059 -2.92 2.68 10.4 166.2961 151.8284 138.4495 -2.88 2.66 12.2 156.5532 143.1847 130.7973 -2.84 2.63 14.0 147.4409 135.0863 123.6153 -2.81 2.59 15.8 138.9148 127.4956 116.8717 -2.75 2.57 17.6...
  • Page 19 Functions and Control 18.2094 17.4484 16.6988 -1.75 1.71 87.8 17.4302 16.6792 15.9410 -1.80 1.78 89.6 16.6885 15.9480 15.2217 -1.87 1.84 91.4 15.9825 15.2530 14.5389 -1.94 1.91 93.2 15.3103 14.5920 13.8903 -2.02 1.96 95.0 14.6700 13.9632 13.2743 -2.09 2.03 96.8 14.0599 13.3650 12.6889 -2.16...
  • Page 20 Functions and Control 3.1881 2.8946 2.6249 -5.26 4.82 168.8 3.0812 2.7946 2.5316 -5.35 4.91 170.6 2.9785 2.6986 2.4420 -5.44 4.99 172.4 2.8796 2.6063 2.3560 -5.53 5.06 174.2 2.7845 2.5176 2.2735 -5.62 5.15 176.0 2.6931 2.4324 2.1943 -5.71 5.22 178.8 2.6050 2.3505 2.1182 -5.80...
  • Page 21 Functions and Control Pipe Sensor =10K ±3% F/169 =3700K±3% Temp. Max.(K ) Normal(K ) Min.(K ) Tolerance( 165.2170 147.9497 132.3678 -3.49 3.15 -22..0 155.5754 139.5600 125.0806 -3.47 3.13 -20.2 146.5609 131.7022 118.2434 -3.44 3.11 -18.4 138.1285 124.3392 111.8256 -3.40 3.08 -16.6 130.2371 117.4366...
  • Page 22 Functions and Control 20.0176 19.0621 18.1358 -2.00 1.93 50.0 19.1149 18.2270 17.3646 -1.94 1.89 51.8 18.2580 17.4331 16.6305 -1.91 1.85 53.6 17.4442 16.6782 15.9315 -1.85 1.82 55.4 16.6711 15.9601 15.2657 -1.82 1.78 57.2 15.9366 15.2770 14.6315 -1.76 1.73 59.0 15.2385 14.6268 14.0271 -1.73...
  • Page 23 Functions and Control 3.4195 3.2085 3.0079 -3.44 3.28 131.0 3.3060 3.0989 2.9021 -3.51 3.33 132.8 3.1969 2.9935 2.8005 -3.60 3.40 134.6 3.0919 2.8922 2.7029 -3.67 3.47 136.4 2.9909 2.7948 2.6092 -3.74 3.55 138.2 2.8936 2.7012 2.5193 -3.83 3.62 140.0 2.8000 2.6112 2.4328 -3.91...
  • Page 24 Functions and Control 0.8741 0.7863 0.7067 -7.42 6.73 212.0 0.8507 0.7646 0.6867 -7.52 6.80 213.8 0.8281 0.7436 0.6672 -7.61 6.89 215.6 0.8061 0.7233 0.6484 -7.72 6.98 217.4 0.7848 0.7036 0.6303 -7.81 7.06 219.2 0.7641 0.6845 0.6127 -7.92 7.15 221.0 0.7441 0.6661 0.5957 -8.03...
  • Page 25: System Configuration

    System Configuration 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 26: Instruction

    System Configuration 6.2Parts and Functions Remote controller 9. QUIET button Indoor Unit 10. HEAT button 11. COOL button 12. AUTO button 13. FAN button 14. TIMER button 15. HEALTH button 16. LOCK button Used to lock buttons and LCD display. 17.
  • Page 27: Emergency Operation

    System Configuration Operation Emergency operation and test operation Base Operation Emergency Operation: Use this operation only when the remote controller is defective 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 Remote controller beeps once, which means the start of this operation.
  • Page 28: Sleep Operation

    System Configuration Operation Sleep Operation 3. In AUTO mode Press button to enter additional options, cycle If the unit is running cooling, the sleep mode will follow the display to will flash. And then press the function as in cool mode, while follow as in heat enter for sleep function.
  • Page 29: Healthy Airflow Operation

    System Configuration Operation Timer On/Off On-Off Operation Healthy airflow Operation 1.After unit starts, select your desired operation mode. 1.Press to starting Setting for comfortable 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...
  • Page 30: Replacement Of Air Purifying Filter

    System Configuration 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 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...
  • Page 31 System Configuration Cautions WARNING This system should be installed by a qualified HVAC professional. Do not attempt to install the air conditioner by yourself improper installation may cause fire, water leakage, personal injury or death. WARNING Check proper Use an exclusive If something abnormal occurs immediately stop the operation button and contact service installation of the...
  • Page 32: Trouble Shooting

    System Configuration Cautions Trouble shooting Before asking for service, check the following Do not obstruct or cover the ventilation grille of the air first. 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...
  • Page 33: Service Diagnosis

    Functions and control 7.Codes and Description 7.1.Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated voltage is None of the units Check the power supply. supplied. operates Check the indoor PCB Check to make sure that the indoor PCB is broken Equipment operates but does Diagnosis...
  • Page 34: Error Codes And Description Indoor Display

    Codes and description 7.2 Error Codes and Description indoor display Code indication Reference Description Page indoor Room temperature sensor failure Indoor Malfunction u l i Indoor fan motor malfunction The code indication that is listed above is the main fault Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or else parts damage may be occurred.
  • Page 35 Codes and Description Turn off power supply and rotate fan by hand Does fan rotate Replace fan motor smoothly? Turn power ON and operate fan Turn off power supply and disconnect fan Does it rotate? motor connector, then turn power ON Check output of fan motor connector Replace indoor Is motor power voltage...
  • Page 36: Capacity Diagrams And Curves Diagrams

    Capacity 8.Capacity diagrams and curves diagrams 8.1 Cooling Capacity-temperature Curves HSU18VHK-G&W performance curves cooling value-temperature table indoor temp. outdoor temp.(humidity 46%) DB/WB 17777 18087 18023 17965 17883 17706 17508 17262 67/47 18040 67/54 18139 18071 18016 17852 17863 17801 17388...
  • Page 37 Capacity 8.2Heating capacity-temperature curves HSU18VHK-G&W performance curves heating capacity and indoor/outdoor temp.table outdoor temp. indoor temp.(humidity 46%) DB/WB 17414 17187 16961 17634 17849 17187 18146 17900 17412 31/28 18572 17985 17525 18985 18241 18013 19040 19217 18245 19607 18723 19333 heating capacity and indoor/outdoor temp.curves...
  • Page 38 Capacity 8.3 Cooling Power Consunption Value-temperature Cures HSU18VHK-G&W performance curves power consumption value-temp.table indoor temp. outdoor temp.(humidity 46%) DB/WB 1560 67/47 1520 1072 1165 1240 1329 1448 1586 67/53 1245 1387 1472 1514 1364 1560 1603 1640 1575 73/57 1520...
  • Page 39 Capacity 8.4 Heating Power Consunption Value-temperature Curves HSU18VHK-G&W performance curves power consumption value-temp.table indoor temp.(humidity 46%) outdoor temp DB/WB 1380 1465 1540 1451 1529 1620 1526 1655 1608 31/28 1640 1587 1695 1681 1624 1706 1736 1685 1708 1726 1755 1820 power consumption-temp.curves...
  • Page 40: Sound Level

    Sound level 8.5 Sound level HSU18VHK-G&W Sound pressure level 208~230V,60HZ sound power level Measureing location Model Cooling/Heating (cooling/heating) Location of microphone 48.5 HSU18VHK-G&W Indoor Cooling Outdoor Octave band cenrer frequency(HZ) Domestic Air Conditioner...
  • Page 41: Installations

    Installations 9.Installation Manual of Room Air Conditioner Preparation Selection of Installation Place Necessary Tools for Installation Indoor Unit - Select a plocation that is Torque wrench Hammer Robust not causing vibration, where the body can be supported sufficiently. (17mm,22mm,26mm) Nipper Not affected by heat or steam generated in the vicinity, where inlet and outlet of the Hacksaw Pipe cutter...
  • Page 42: Indoor Unit

    Installations 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. Drain hose (1) 3.
  • Page 43: Outdoor Unit

    Installations Ensure that on dirt or debris enters the pipe. 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 be charged, according to 50 g/m(0.045 oz/inch).But the charge of refrigerant must be conducted by professional air conditioner servicer.
  • Page 44 Installations No gas leakage? On Drainage In case of gas leakage, tighten parts of pipe connection. If leakage stops, then proceed step 6. If leak continues, remove the refrigerant used for the Please install the drain hose so as to be downward slope without fail. leakage check and flare tubes again.
  • Page 45 Piping diagrams 10.Appendix 10.1 Piping Diagrams Cooling mode Heating mode Domestic Air Conditioner...
  • Page 46 Wiring diagrams 10.2 Wiring Diagrams Indoor Up&down step motor Domestic Air Conditioner...
  • Page 47 Wiring diagrams Outdoor NOTE: 1.The parts are optional. Domestic air conditioner...
  • Page 48: Wiring Diagrams

    Wiring diagrams 10.3 Wiring diagrams Circuit Diagram remote control reiceive reset circuit MODE P4_5/INT0 TO Display 595-RCK RESET P1_3/KI3/AN11 595-SER P3_0/TRAO 595-SCK P3_1/TRBO pipe Emergency switch P0_5/AN2/CLK1 P1_0/KI0/AN8 room P0_4/AN3 P3_3/SSI DIG1 P6_3/TXD2 DIG2 P6_0/TREO B4B-XH-A P8_4/TRFO11 P8_6 RLS4148 P2_2/TRDIOC0 4.7uF-16V P2_0/TRDIOA0/TRDCLK 4.7uF/16V...
  • Page 49: Dimensional Drawings

    Dimensional drawings 10.4 Dimensional drawings Indoor unit HSU18VHK-G 41.18 in 11.77 in 9.33 in 2.95 in 2.95 in 12.99 in Outdoor unit HSU18VHK-W 33.86 in 32.28 in 12.13 in 0.25 0.37 in(3/8 ) 2.91 in 2.69 in 2.15 in Domestic air conditioner...
  • Page 50 Center of gravity 10.5 Center of gravity Indoor unit HSU18VHK-G 3.30 in 7.48 in 1.60 in 3.50 in Outdoor Unit HSU18VHK-W 33.86 in 13.78 in Domestic air conditioner...
  • Page 51 Appendix 10.6 Accessories HSU18VHK-G&W R-03 dry battery Steel nail Plastic cap Cover Cushion Pipe supporting plate Drain-elbow Domestic air conditioner...
  • Page 52 Applicable voltage:V(208~230V) Nominal cooling capacity (18000BTU/h) The structure code of indoor & outdoor unit: S(wall-mounted) H-Abbreviation of Haier Examples: HSU18VHK,It represents wall-mounted split type heat pump air conditione r.The cooling capacity is 18000BTU/h,and the power supply is 208-230V/60HZ,“K” means the indoor unit series number.
  • Page 53 The end Sincere Forever Haier Group Edited by:Wang Yujie Haier Industrial Park,NO.1,Haier Road Wang Yueliang 26601,Qingdao,China Signed by:He Shiquan E-mail:hractech@haier.com Approved by:Wu Hongjin Tel:+86 0532 8893 6935 Http://www.haier.com Domestic air conditioner...

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