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Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2021 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law Haier Group Version:V1...
Introduction 1.Introduction 1.1 Model name explanation Apply toT1; 220~240V50HZ/1ph DC inverter Heat pump & R32 refrigerant Version number Europe Platform of outdoor units: 3P p latform Nominal cooling capacity (24000BTU/h ) Type of outdoor unit : U (normal type) The maximum combination number Domestic air conditioner...
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Intuoduction 1.2 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 ●...
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Intuoduction When disconnecting the suction or discharge pipe of the compressor at the welded section, release the refrigerant gas completely at a well-ventilated place first. If there is a gas remaining inside the compressor , the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected, and it can cause injury.
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Intuoduction conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can cause an electrical shock, excessive heat generation or fire. When relocating the equipment, make sure that the new installation site has sufficient strength to withstand the weight of the equipment.
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Intuoduction itself is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters, stoves and ranges. When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent children from swallowing it.
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Intuoduction 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. ●...
Specification c t i 2*30*1.4 TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type Refrigerant charge Refrigerant Maximum allowable distance circuit between indoor an outdoor Maximum allowable level difference ● Refrigerant control liquid Φ6.35 Piping connections Φ12.7 (external diameter) drain Φ16 ● Heat insulation type Both liquid and Gas pipes ●...
Wiring diagrams 6.Printed Circuit Board Connector Wiring Diagram Connectors PCB (1) (Outdoor Control PCB) Connector for power N and L ● Connector for ground CN7(BLACK) CN8(WHITE) Connector for the U, V, W wire of the compressor CN9(RED) L-IN(CN5) Connector for reactor L-OUT (CN6) CN10 Connector for fan motor...
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Wiring diagrams PCB (1) Bottom L N PE heater 4-way valve E-valve Sensor DC fan motor ● Compressor PFC Reactor ● Domestic air conditioner...
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Wiring diagrams Wiring diagrams Domestic air conditioner...
Functions and control 7.Outdoor Functions and Control 7.1 Main functions and control specification .1.1 The operation frequency of outdoor unit and its control ● 7.1.1.1 The operation frequency control of compressor The operation frequency scope of compressor: Mode Minimu m operation frequency Maximum operation frequency ●...
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Functions and control 109HZ Wh_c<-8 Max_hz2 98HZ Wh_c<-2 Max_hz3 86HZ Wh_c<5 Max_hz4 81HZ Wh_c<10 Max_hz5 77HZ Wh_c<17 Max_hz6 70HZ Wh_c<20 Max_hz7 66HZ Wh_c>=20 Max_hz8 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.
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Functions and control When refrigerating, it is needed to satisfy F-MIN-d(compressor’s Min_hz)< F<F-MAX-d(compressor’s Max_hz) When heating, it is needed to satisfy F-MIN-r (compressor’s Min_hz)< F<F-MAX-r (compressor’s Max_hz) PID control : The innital frequency Sn is determined by Pn . We can calculate Hzoutf according to the value of Kp ,Ki ,Kd, Out_gain,Pn.Then , Fn = Sn + Hzoutf.
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Functions and control 7.1.4 Four way valve 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.
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Functions and control state). TC=indoor coil temp. The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the temperature is higher than 63 ℃ , decrease the rotate speed of the compressor and do the high temperature-preventing protection of the indoor heat exchanger;...
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Functions and control the compressor increases at the prohibited speed. During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency of the compressor increases at the speed of no faster than 0.1HZ/second. Remarks: when the outdoor temperature is high, there’s compensation for AC current protection. (1) When the outdoor environment temperature is higher than 40℃, AC current protection value decreases by 2A/1A(09K/12K).
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Functions and control the compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest frequency. When the temperatures are lower than 68℃ and higher than 62℃, keep the frequency of the compressor. When the temperatures are lower than 62℃, relieve the defrosting temperature protection. 7.2 Value of Thermistor Ambient Sensor, Defrosting Sensor, Pipe sensor ●...
Service diagnosis 10.Service Diagnosis 10.1 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.
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Service diagnosis 10.3 Error Codes and Description indoor display Code indication Indoor displaying panel code indication Only For 498 and Outdoor Reference fault description 498A display (LED1 flash Page Other display (Red/Green Time times) Run □On★Flash■ Off) Indoor and Communication fault between Page.42 ■...
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Service diagnosis 10.3.1 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...
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Service diagnosis 10.3.2 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 ●...
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Service diagnosis 10.3.3 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 d etected rotation feedback signal don’t received in 2 minutes ●...
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Service diagnosis 10.3.4 Outdoor DC fan motor fault Outdoor display LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
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Service diagnosis Check whether Terminal on the outdoor mainboard is well inserted. it is normal Reinsert the terminals Electrify the machine again and turn it on in The motor and the Cool state with the remote controller. outdoor pcb are check whether the motor could run.
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Service diagnosis 10.3.5 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 Decision ■...
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Service diagnosis 10.3.6 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 ●...
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Service diagnosis 10.3.7 Power Supply Over or under voltage 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...
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Service diagnosis 10.3.8 Overheat Protection For Discharge Temperature Outdoor display: LED1 flash 8 times ● Method of The Discharge temperature control is checked with the temperature being detected ● Malfunction by the Discharge pipe thermistor Detection Malfunction when the compressor discharge temperature is above 110℃ Decision Conditions Supposed...
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Service diagnosis 10.3.9 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 ■...
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Service diagnosis The outdoor pcb is damaged, replace it with a new one. The outdoor pcb is damaged, replace it with a new one. Domestic air conditioner...
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Service diagnosis 10.3.10 Loss of synchronism detection Inverter side current detection is abnormal 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; ●...
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Service diagnosis 10.3.11 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℃...
Circuit diagrams 13 Wiring Diagrams 13.1 Outdoor unit control board circuit diagrams ICE5AR4770BZ 30A/600V, IKCM30F60GD Domestic air conditioner...
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Circuit diagrams Sincere Forever ● Haier Group ● Edited by : Shi haiyan Haier Industrial Park, No.1, Haier Road ● Wang wanli 266101, Qingdao, China Signed by : Li jingsheng Http://www.haier.com Approved by: Yang wenjun ● Domestic air conditioner...
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Removal of procedure Removal of procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies Procedure before disassembling work Step 1. Removal of Outdoor panel Procedure Points 1.Remove the panels Loosen the screws and lift the top panel and remove the handle.
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Removal of procedure Points Procedure Step Loosen the screws of the panel, pull and remove the front panel. Loosen the fixting screws and remove the side panel. Domestic air conditioner...
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Removal of procedure Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the fixing screws, than lift the electrical box. Domestic air conditioner...
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Removal of procedure Removal of Fan and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Loosen the fixing screw and remove the fan. Domestic air conditioner...
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Removal of procedure Procedure Step Points Loosen fixing screws and remove the fan motor. Put the head wire through the back of motor when assembling.(so as not to be entangled with the propeller fan) Domestic air conditioner...
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Removal of procedure Removal of fan motor bracket and partition Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Loosen fixing screws and remove the fan motor bracket. Domestic air conditioner...
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Removal of procedure Step Procedure Points Loosen fixing screws. The partition When assembling, fit plate has a hook on the lower hook into the lower side, than lift the bottom frame. pull proof plate. Remove partition plate. Domestic air conditioner...
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Removal of procedure Removal of compressor and heat exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points down concenting pipe and compressor remove valve bracket. Domestic air conditioner...
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Removal of procedure Step Procedure Points Loosen the marked fixing screws remove heat exchanger. Domestic air conditioner...