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Haier 2U14CS1ERA Service Manual

Ek series wall mounted type dc inverter
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Table of Contents
AS07GS2ERA
AS09GS2ERA
AS12GS2ERA
indoor unit and remote controller
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

SERVICE MANUAL

DC Inverter
Model No.
2U14CS1ERAoutdoor unit
WARNING
All right reserved .Unauthorized copying and distribution is a violation of law
Haier Group
Order No.

Wall mounted Type

EK-Series
2U14CS1ERA
AS07GS2ERA
AS09GS2ERA
AS12GS2ERA
©
(Qingdao Haier Air Conditioner General corp.,Ltd)
AC1012S002V0

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  Summary of Contents for Haier 2U14CS1ERA

  • Page 1: Service Manual

    © (Qingdao Haier Air Conditioner General corp.,Ltd) All right reserved .Unauthorized copying and distribution is a violation of law...
  • Page 2 2U14CS1ERA-SM of indoor unit main function and control specification of outdoor unit Removal of Air Filter Removal of Front panel Horiaontal Flap Drain Vertical Blades and Swing Motor...
  • Page 3 2U14CS2ERA-SM 9.9 Removal of Outdoor panel ................95 9.10 Removal of Electrical Box ................99 9.11 Removal of Fan and Fan Motor ..............100 9.12 Removal of Fan motor bracket and partition ..........102 9.13 Removal of Compressor and Heat Exhange ..........104 11 Description of Coding rules of Unit Model............112...
  • Page 4: Safety Cautions

    2U14CS1ERA-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

    2U14CS1ERA-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 2U14CS1ERA-SM 9.9 Removal of Outdoor panel ................95 9.10 Removal of Electrical Box ................99 9.11 Removal of Fan and Fan Motor ..............100 9.12 Removal of Fan motor bracket and partition ..........102 9.13 Removal of Compressor and Heat Exhange ..........104 11 Description of Coding rules of Unit Model............112...
  • Page 7: Inspection After Repair

    Introduction 2U14CS1ERA-SM 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.
  • Page 8 Introduction 2U14CS1ERA-SM 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.
  • Page 9 2U14CS1ERA-SM AS07/09/12GS2ERA Functions Category 2U14CS1ERA Healthy negative ion make your room full of an abundance natural negative ions. Avoid the child's wrong operation on the remote controller Child lock The 3D airflow is able to deliver the airflow horizontally and vertically.
  • Page 10: Specification

    2U14CS1ERA-SM 3 Specification (9+12)K 2U14CS1ERA 4.2(1.2~5.8) 4.6(1.5~5.0) 14300(4100~19800) 15700(5100~17050) 3612(1032~4988) 3956(1290~4300) 1070(290~1400) 1090(335~1650) 3.93 4.22 9.52 30(double)20(single) 7.5/8.0(7K/9K) 8.3/8.8(12K) 6.6/7.2(7K/9K) 7.2/7.8(12K) 6.1/6.6(12K) 5.7/6.4(7K/9K) 0.15 0.15 265×795×187 360X871X304 8.8 . 11.3 38/34/30(7K/9K) 39/36/32(12K)
  • Page 11 2U14CS1ERA-SM 2U14CS1ERA DA108X1C-20FZ3 ESTER OIL VG74 0.48 R410a 1236 1236 1070 1090 540x780x270 612X905X375...
  • Page 12: Indoor Unit Connectors

    2U14CS1ERA-SM Connector wiring diagram 4.1 Indoor unit Connectors Connectors PCB(1) 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...
  • Page 13 2U14CS1ERA-SM Connector wiring diagram PCB(1) CN26 CN27 CN11 CN32 CN20 CON1 CON2 CON6 CN34 CON8 CON7 Domestic Air Conditioner...
  • Page 14: Outdoor Unit

    2U14CS1ERA-SM Connector wiring diagram outdoor unit Connectors PCB(1) (Control PCB) 1) CN1,CN2 Connector for power N and L 2) CN3 CN8 Connector for ground 3) CN23 Connector for DC POWER 15Vand 5V to the module board 4) CN9,CN10 Connector for CN9,CN8 on the module board...
  • Page 15 2U14CS1ERA-SM Connector wiring diagram CN36 CN10 CN49 CN11 CN15 CN45 CN16 CN47 CN17 CN18 CN19 CN20 CN21 CN23 CN24 CN25 CN28 PCB(1) Domestic Air Conditioner...
  • Page 16 2U14CS1ERA-SM Connector wiring diagram CN10 CN11 PCB(2) Domestic Air Conditioner...
  • Page 17: Funcitions And Control

    2U14CS1ERA-SM Functions and control 5.Funcitions and Control 5.1 Main functions and control specification of indoor unit 5.1.1 Automatic operation When the system is under the automatic operation option, the appropriate operation mode will be decided according to the differences between the preset temperature and the indoor temperature after the system starts up.
  • Page 18 2U14CS1ERA-SM Functions and control Manus: When the system is operating, you can set the high, medium or low speed manually. ( When the sensor is on or off, the system will change the speed 2 seconds after receiving the signal.) *Airgate location control: the location for the airgate can be set according to your needs.
  • Page 19: Heating Operation Mode

    Functions and control 2U14CS1ERA-SM * timing system on/off function. * Dormant control function. 5.1.4 Heating operation mode. * temperature control range: 16---30 * temperature difference: * control feature: the temperature compensation is automatically added and the system will send the heating signals to the outdoor system.
  • Page 20: Mute Operation

    2U14CS1ERA-SM Functions and control 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 2U14CS1ERA-SM Functions 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).
  • Page 22 Functions and control 2U14CS1ERA-SM 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 Functions and control 2U14CS1ERA-SM 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: Fixed Frequency Operation

    Functions and control 2U14CS1ERA-SM 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: Display Function

    2U14CS1ERA-SM Functions and control second—LCD 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 2U14CS1ERA-SM Functions and control 5.2.1.4 The calculation of the compressor’s frequency The minimum/maximum frequency limitation While refrigerating: is the maximum operation frequency of the compressor; is the minimum operation frequency of the compressor. B While heating: is the maximum operation frequency of the compressor;...
  • Page 27: The Outdoor Fan Control (Exchange Fan)

    2U14CS1ERA-SM Functions and control Refrigeration/dehumidification mode:: Serial No. Temperature scope Frequency limitation Twh 16 Max_hz1 34HZ 16<Twh 24 Max_hz2 40 HZ 24<Twh 32 Max_hz3 62 HZ 32<Twh 44 Max_hz4 68 HZ Twh>44 Max_hz5 40 HZ Remarks: the above are not only the maximum frequency limitations of the complete appliance which are affected by the environment, but also the maximum ability limitation of the system.
  • Page 28 2U14CS1ERA-SM Functions and control seconds). 5.2.2.1 The outdoor fan control when refrigerating or dehumidifying After the compressor is started for 5 seconds, the outdoor fan is started at the medium speed at first, after 30 seconds,it begins to control the airflow speed according to the temperature conditions of the outdoor environment.
  • Page 29: Protection Function

    2U14CS1ERA-SM Functions and control close the four-way valve. 5.2.5 Protection function 5.2.5.1 TTC high temperature-preventing protection Once the machine is started, it can run TTC overheating protection of air-blowing, but air-blowing sensor malfunction must alarm after 4 minutes during which the compressor is started (during the course of self-detection, there’s no such limitation)
  • Page 30 2U14CS1ERA-SM Functions and control P Decreasing at the speed of 1Hz/10 seconds Q Continue to keep the last-time instruction cycle R Increasing at the speed of 1Hz/10seconds Remarks: the outdoor unit 5.2.5.3 The control of preventing the overcurrent of the compressor...
  • Page 31 2U14CS1ERA-SM Functions and control Stop When Tpg_indoor ice_temp_1 , the frequency of the compressor decreases at the speed of 1HZ/1second. When Tpg_indoor ice_temp_2 , the frequency of the compressor decreases at the speed of 1HZ/10seconds. When Tpg_indoor begins to rise again, and ice_temp_2 =Tpg_indoor = ice_temp_3 , the frequency of thecompressor doesn’t change.
  • Page 32: Value Of Thermistor

    Functions and control 2U14CS1ERA-SM the complete appliance’s malfunctions are prior to the units’ malfunctions. Annex 1 Malfunction codes of the whole unit Remarks: under the mode of refrigeration, the malfunctions of each unit’s thin pipe temperature sensor are not reported, under the mode of heating, the malfunctions of each unit’s thick pipe temperature sensor are not reported.
  • Page 33 2U14CS1ERA-SM Functions and control 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 66.3463 61.0123 56.0565 -1.64 1.52 62.8755 57.9110 53.2905 -1.62 1.51 59.6076 54.9866 50.6781 -1.60 1.49 56.5296 52.2278...
  • Page 34 2U14CS1ERA-SM Functions and control 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 0.90 8.1371 7.8428 7.5522 -0.95 0.93 7.8299 7.5377 7.2498 -0.98 0.97 7.5359 7.2461 6.9611 -1.02 1.00 7.2546 6.9673...
  • Page 35 2U14CS1ERA-SM Functions and control 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 2.63 1.7434 1.6021 1.4710 -2.88 2.67 1.6913 1.5528 1.4243 -2.92 2.71 1.6409 1.5051 1.3794 -2.97 2.75 1.5923 1.4592...
  • Page 36: Outdoor Unit

    2U14CS1ERA-SM Functions and control 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 4.70 5.3.2 Outdoor Unit Ambient Sensor, Defrosting Sensor, Pipe sensor R25 =10K 3% B25 /50 =3700K 3% Temp.( )
  • Page 37 2U14CS1ERA-SM Functions and control 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 1.12 20.9688 19.9409 18.9463 -1.13 1.09 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...
  • Page 38 2U14CS1ERA-SM Functions and control 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 1.74 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...
  • Page 39 Functions and control 2U14CS1ERA-SM 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 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...
  • Page 40 2U14CS1ERA-SM Functions and control 5375.5683 4558.1906 3861.6201 -2.76 2.35 5045.9114 4286.5535 3638.1938 -2.75 2.34 4738.4141 4032.7098 3429.0191 -2.73 2.34 4451.4586 3795.3910 3233.1039 -2.72 2.33 4183.5548 3573.4260 3049.5312 -2.70 2.32 3933.3289 3365.7336 2877.4527 -2.69 2.31 3699.5139 3171.3148 2716.0828 -2.67 2.30 3480.9407 2989.2460...
  • Page 41 2U14CS1ERA-SM Functions and control 441.0535 402.2430 366.5175 -1.99 1.83 420.1431 383.7151 350.1301 -1.97 1.81 400.3242 366.1295 334.5542 -1.95 1.80 381.5350 349.4341 319.7460 -1.93 1.78 363.7176 333.5801 305.6645 -1.90 1.76 346.8176 318.5216 292.2709 -1.88 1.75 330.7839 304.2151 279.5286 -1.86 1.73 315.5682 290.6199...
  • Page 42 2U14CS1ERA-SM Functions and control 62.3423 60.1906 58.0609 -0.95 0.94 59.9821 57.9770 55.9885 -0.92 0.92 57.7223 55.8552 53.9998 -0.90 0.89 55.5583 53.8210 52.0912 -0.87 0.87 53.4856 51.8706 50.2591 -0.85 0.84 51.5000 50.0000 48.5000 -0.85 0.84 49.7063 48.2057 46.7083 -0.85 0.85 47.9835 46.4842...
  • Page 43 2U14CS1ERA-SM Functions and control 14.1376 13.1879 12.2909 -2.41 2.27 13.7294 12.7955 11.9144 -2.45 2.31 13.3347 12.4165 11.5510 -2.50 2.35 12.9531 12.0503 11.2003 -2.54 2.39 12.5840 11.6965 10.8617 -2.58 2.43 12.2270 11.3545 10.5348 -2.63 2.47 11.8817 11.0240 10.2191 -2.68 2.51 11.5475 10.7046...
  • Page 44 2U14CS1ERA-SM...
  • Page 45: Parts And Functions

    2U14CS1ERA-SM Introduction Parts and Functions Remote controller Indoor Unit Additional functions display Supplemented electrical Operation mode QUITE SLEEP HEALTH POWER heating Inlet Air Purifying Filter Remote controller (inside) 9. QUIET button 10. HEAT button 11. COOL button Inlet grille 12. AUTO button 13.
  • Page 46: Base Operation

    2U14CS1ERA-SM Introduction Operation Base Operation Emergency operation and test 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.
  • Page 47: Sleep Operation

    2U14CS1ERA-SM Introduction 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 2U14CS1ERA-SM Introduction EUROPEAN REGULATIONS Operation CONFORMITY FOR THE MODELS Timer On/Off On-Off Operation 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...
  • Page 49: Indoor Unit Installaion

    2U14CS1ERA-SM Introduction Indoor Unit Installaion Necessary Tools for Installation Power Source ● Torque wrench ● Driver ● Before inserting power into receptacle, check the voltage (17mm,22mm,26mm) ● Nipper without fail. ● Pipe cutter ● Hacksaw ● The power supply is the same as the corresponding nameplate.
  • Page 50: Indoor Unit Installation

    2U14CS1ERA-SM Introduction Indoor Unit Installation · [ Left Left-rear piping ] Fitting of the Mounting Plate and Positioning of the wall Hole ● In case of left side piping, cut away, with a nipper, the lid for left piping. ●...
  • Page 51 2U14CS1ERA-SM Introduction Correct Incorrect When connecting the cable after installing the indoor unit 1. Insert from outside the room cable into left side of the wall Lean Damage of flare Partial Too outside Crack hole, in which the pipe has already existed.
  • Page 52: Maintenance

    2U14CS1ERA-SM Introduction 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,...
  • Page 53 2U14CS1ERA-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,...
  • Page 54: Troubleshooting

    Are there too much heat sources or too many people in the room during cooling operation? Haier Group Address:No.1 Haier Road,Hi-tech Zone,Qingdao 266101 P.R.China Contacts: TEL +86-532-8893-6943;FAX +86-532-8893-1010 Website: www.haier.com Domestic air conditioner...
  • Page 55: Service Diagnosis

    2U14CS1ERA-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 56: Error Codes And Description Indoor Display

    2U14CS1ERA-SM 7.4.Error Codes and Description indoor display Code indication Reference Outdoor Description Page indoor (LED1 flash times) Indoorand Outdoor Communication fault between indoor and Page .64 outdoor units Room temperature sensor failure Page .54 Indoor Malfunction Heat-exchange sensor failure Page .54 Indoor fan motor malfunction Page .56...
  • Page 57: Thermistor Or Related Abnormality

    2U14CS1ERA-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 Frost-removing temperature sensor failure LED1 flash 11 times Suction temperature sensor failure LED1 flash 12 times Ambient temperature sensor failure...
  • Page 58: Eeprom Abnormal

    2U14CS1ERA-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...
  • Page 59: Indoor Ac Fan Motor Malfunction

    2U14CS1ERA-SM Service diagnosis 7.4.3 Indoor AC fan motor malfunction Indoor Display Method of determine The rotation speed detected by the Hall IC during fan motor operation is used to Malfunction abnormal fan motor operation Detection Malfunction when the detected rotation feedback singal don’t receiced in 2 minutes...
  • Page 60: Outdoor Dc Fan Motor Fault

    2U14CS1ERA-SM Service diagnosis Outdoor DC fan motor fault 7.4.4 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 61: Ipm Protection

    2U14CS1ERA-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 62: Over-Current Of The Compressor

    2U14CS1ERA-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 63: The Communication Fault Between Ipm And Outdoor Pcb

    2U14CS1ERA-SM Service diagnosis Electrify the machine again and turn it on with the remote controller,If malfunctions IPM Module is damaged and reported before upon needs replacing. compressor being started up, The compressor is started normally, but malfunctions are reported after it Repair the power supply has run for some time.
  • Page 64 2U14CS1ERA-SM Service diagnosis 1) Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2) Check whether the connected wire between IPM and outdoor 1) Pull out and reinsert the terminals. 2) Replace connected wire...
  • Page 65: Overheat Protection For Exhaust Temperature

    2U14CS1ERA-SM Service diagnosis Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else parts damage may be occurred. Electrify the machine again and turn it on with the remote controller. Check whether the...
  • Page 66 2U14CS1ERA-SM Service diagnosis Electrify the machine again and turn it on with the remote controller, then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit 1) The cryogen may have been leaked during installation, or there may be leakage in the piping the temperature exceeds system.
  • Page 67: The Communication Fault Between Indoor And Outdoor

    Service diagnosis 2U14CS1ERA-SM 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 Malfunction The outdoor PCB broken leads to communication fault...
  • Page 68 2U14CS1ERA-SM Service diagnosis Check the status of LED1 on the indoor mainboard. If the LED1 blinks interruptedly 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.
  • Page 69: Loss Of Synchronism Detection

    2U14CS1ERA-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;...
  • Page 70: High Work-Intense Protection

    2U14CS1ERA-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...
  • Page 71: Installation

    Installation 2U14CS1ERA-SM 8 Installation IMPORTANT INFORMATION REGA- EUROPEAN REGULATIONS RDING THE REFRIGERANT USED Selection of Installation Place CONFORMITY FOR THE MODELS Contains fluorinated greenhouse gases covered by the Kyoto Protocol All the products are in conformity with the following R410A...
  • Page 72 2U14CS1ERA-SM Installation The models adopt HFC free refrigerant R410A. For installation of the indoor units,refer to the installation manual which was provided with the units. (The diagram shows a wall-mounted indoor unit.) Attention must be paid to the rising up of drain hose...
  • Page 73 2U14CS1ERA-SM Installation WARNING CAUTION Domestic air conditioner...
  • Page 74 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 75 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 76 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 77 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 78 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 79 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 80 2U14CS1ERA-SM Installation Air outlet Wind direction Cushion rubber 4.Installation dimension(Unit:mm) Domestic air conditioner...
  • Page 81 2U14CS1ERA-SM Installation 2U14CS1ERA 2U18FS1ERA Connection of pipes ● To bend a pipe, give the roundness as large as possible not to crush the pipe , and the bending radius should be 30 to 40 mm or longer. ● Connecting the pipe of gas side first makes working easier.
  • Page 82 2U14CS1ERA-SM Installation Domestic air conditioner...
  • Page 83 2U14CS1ERA-SM Installation 2-way valve 2-way valve 3-way valve 3-way valve 2-way valve 2-way valve 3-way valve 3-way valve Each indoor unit musts to be vacuumed , according to the above steps. If the refrigerant of the air conditioner leaks, it is necessary to discharge all the refrigerant. Vacuumize first, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.
  • Page 84 2U14CS1ERA-SM Installation 2U14CS1ERA 2U18FS1ERA T 25A/250V. Outdoor unit A Outdoor unit A To Indoor unit A To Indoor unit A 2U14CS1ERA Model 2U18FS1ERA Outdoor unit B Outdoor unit B DOUBLE Connecting wiring 4G0.75mm DOUBLE To Indoor unit B To Indoor unit B Power cable 3G2.5mm...
  • Page 85: Outdoor Unit Troubleshooting

    When the The wiring of compressor is wrong or Suction temperature sensor failure the connection is poor Check if there is leakage in the unit. Lack of refrigerant Haier Group Address:No.1 Haier Road,Hi-tech Zone,Qingdao 266101 P.R.China Contacts: TEL +86-532-8893-6943;FAX +86-532-8893-1010 Website: www.haier.com Domestic air conditioner...
  • Page 86 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 87 2U14CS1ERA-SM Removal of procedure 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 88 2U14CS1ERA-SM Removal of procedure 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 89 2U14CS1ERA-SM Removal of procedure HOOKS three Domestic air conditioner...
  • Page 90 2U14CS1ERA-SM Removal of procedure horizontal flap flap flap flap flap Domestic air conditioner...
  • Page 91 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 92 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 93 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 94 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 95 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 96 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 97 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 98 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 99 2U14CS1ERA-SM Removal of procedure Loosen the top panel screws Lift the top panel Domestic air conditioner...
  • Page 100 2U14CS1ERA-SM Removal of procedure Loosen the csrews and pull the panel Domestic air conditioner...
  • Page 101 2U14CS1ERA-SM Removal of procedure 2 Pull the wind circle Remove the inlet grill Push the hooks first Domestic air conditioner...
  • Page 102 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 103 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 104 2U14CS1ERA-SM Removal of procedure Loosen the fixing screws and remove the motor Domestic air conditioner...
  • Page 105 2U14CS1ERA-SM Removal of procedure Domestic air conditioner...
  • Page 106 2U14CS1ERA-SM Removal of procedure Loosen the screw and remove the reactor Domestic air conditioner...
  • Page 107 2U14CS1ERA-SM Removal of procedure Loosen the marked screws and pull out the backgurd Domestic air conditioner...
  • Page 108 2U14CS1ERA-SM Removal of procedure Loosen the marked screws and remove the stop valves Loosen the marked screws and remove the stop valves bracket Domestic air conditioner...
  • Page 109 2U14CS1ERA-SM Removal of procedure Loosen the screw and remove the reactor Domestic air conditioner...
  • Page 110 2U14CS1ERA-SM 10. Appendix 10.1 Piping Diagrams...
  • Page 111: Wiring Diagrams

    2U14CS1ERA-SM Wring Diagram 10.2 Wiring Diagrams Indoor Domestic air conditioner...
  • Page 112 Wring Diagram 2U14CS1ERA-SM Outdoor DON'T TOUCH CAPACITOR, EVEN AFTER PLUG-OFF ( DANGER OF ELECTRIC SHOCK) THE CAPACITOR RETAINS HIGH VOLTAGE EVEN AFTER THE R em arks PLUG-OFF.FOR YOUR SAFETY,BE SURE TO 1 .the d o tte d pa rts a re op tion a l fo r WAIT AT LEAST 5 MINUTES.AFTER PLUG...
  • Page 113: Circuit Diagram

    2U14CS1ERA-SM Wring Diagram 10.3 CIRCUIT DIAGRAM 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 R301 R65 100 COM2 COM3 R66 100 R18 4.7K 2SC2412 B8B-PH R302 JSS1270 3.3K...
  • Page 114 2U14CS1ERA-SM Wring Diagram outdoor unit control board Circuit Diagrams CN10 AC-L OUT AC-N OUT AC-N OUT AC-L OUT CN14 CN13 FUSE1 PTC1 2U/450V T25A 250VAC 400N/PSB400 AC-L S14K350 225/275V 225/275V 225/275V 100/1W 8MH/20A 8MH/20A 103/275V +12V CN16 472/250V/275V AC-N AC-L...
  • Page 115: Description Of Coding Rules Of Unit Model

    Appendix 2U14CS1ERA-SM Description of coding rules of unit model Apply to T1;220~240V 50HZ 1ph DCInverter Heat pump&R410 refrigerant version number Super-match range Platform of indoor units: G(EK Platform) Nominal cooling capacity (7000BTU/h) Type of indoor unit: S(wall-mounted) Indoor unit means9000BTU.
  • Page 116 2U14CS1ERA-SM The end Sincere Forever Haier Group Chen Huimin Li Peng Yang Bifei 88936935 W Hongjin...

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