Haier AP24DF1HRA Service Manual Download

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Intuoduction

Domestic air conditioner

1 Introduction

1.1 Model name explanation

Indoor unit

Type of indoor unit: P (packaged type)

Nominal cooling capacity (24000BTU/h)

Version number

R410A refrigerant

DC inverter

Apply toT1; 220~240V50HZ/1ph

Platform of indoor units: Cabinet

72N Platform

Heat pump &

Summary of Contents for AP24DF1HRA

Page 1: ...mpting 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 WARNING 2017 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying and distribu...

Page 2: ...2 Features 7 3 Specifications 8 4 Sensors list 9 5 Piping diagrams 10 6 Printed Circuit Board Connector Wiring Diagram 11 7 Functions and Control 8 System configuration 9 Dimensional drawings 10 Conter of gravity 11 Service Diagnosis 12 Circuit diagrams 14 59 43 42 42 25 ...

Page 3: ... Model name explanation A P 2 4 D F 1 H R A Indoor unit Type of indoor unit P packaged type Nominal cooling capacity 24000BTU h Version number R410A refrigerant DC inverter Apply toT1 220 240V50HZ 1ph 1 Platform of indoor units Cabinet 72N Platform Heat pump ...

Page 4: ...t before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refriger...

Page 5: ... the welder in an enclosed room can cause oxygen deficiency 1 2 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to 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 ...

Page 6: ...generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results ...

Page 7: ...roperly water can enter the room and wet the furniture and floor 1 2 3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damage...

Page 8: ...k Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 2 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 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides informa...

Page 9: ...door noise can be adjusted to a more comfortable level when you set the sleep mode during night sleep 4 Fan setting Select the fan speed LOW MED HI AUTO 24 hours timer Use the timer function to set on or off or from on to off or from off to on 3D air flow The 3D airflow is able to deliver the airflow horizontally and vertically Child lock Avoid the child s wrong operation on the remote controller ...

Page 10: ...o i t p m u s n o C r e w o P K d e t 01 4 0 7 W W P O C S R E E S h W K n o i t p m u s n o c y g r e n e l a u n n A 360 1921 h m l a v o m e R e r u t s i o M 4 25 10 TECHNICAL SPECIFICATIONS 407 377 1810 m m D W H s n o i s n e m i D 555 525 1935 m m D W H s n o i s n e m i D d e g a k c a P 34 G K t h g i e W 45 G K t h g i e w s s o r G e t i h W r o l o C Sound level Sound peessure high dB ...

Page 11: ... Removable Washable Mildew Proof Temperature control Microcomputer Control HB15 R Y l e d o m r e l l o r t n o c e t o m e R Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i t a e h g n i l o o c Indoor 32 DB 23 WB Outdoor 43 DB 26 WB Indoor 20 DB Outdoor 2 DB 1 WB 5m 4 Sensors list type Description Qty 1 e r u t a r e p m e t m o o r g n i t c e t ...

Page 12: ...Piping diagrams Domestic air conditioner 5ˊPinping diagrams 10 electrical expansion valve electrical expansion valve ...

Page 13: ... s e i r e s 1 CN17 Connector for power N 2 CN21 Connector for power L 3 CN35 Connector for communication with outdoor 4 CN2 CN4 CN5 CN8 CN13 Connector for 5 CN9 6 CN6 7 CN11 8 CN23 9 CN3 Connector for anion generator Connector for display board Connector for step motor Connector for heat exchanger thermistor and Room temperature thermistor Connector for photoelectric switch fan motor ...

Page 14: ...Connector Wiring diagrams PCB 1 ...

Page 15: ...y B Black W White R Red NOTES Horizontal CN54 CN55 TO OUTDOOR UNIT TERMINAL CN35 CN17 CN21 CN18 CN22 Down vertical INDOOR WIRING DIAGRAM Grown What in dotted box are reserved function Control board WIFI MODULE Ambient temp pipe temp sensor sensor moter moter moter Anion brush Remove PM2 5 generator Anion Module CN6 CN9 CN4 CN8 CN13 CN2 CN5 Y G CN11 CN33 CN34 CN3 T3 15A 250V CON R BR BL Y G ...

Page 16: ...e Temperature control range 16ć 30ć Temperature difference 1ć Control features When Tr input airflow Ts set temperature ć the compressor will be opened the indoor fan will operate at the set speed When Tr input airflow Ts set temperature ć the compressor will be Airflow speed control temperature difference 1ć Automatic 14 Ts 3ć be closed and the outdoor fan will not operate After the compressor st...

Page 17: ...n mode temperature control range 16 30ć temperature difference 1ć control feature the temperature compensation is automatically added and the system will send the heating signals to the outdoor system If Tr Ts the outdoor compressor is turned on the indoor fan will be at the cold air proof mode If Tr Ts the outdoor system is turned off the indoor fan will operate 30s at low speed and then After th...

Page 18: ...o low the indoor fan will stopped running or run at low speed After the temperature of the indoor coil is raised the indoor fan will operate as per the setted airflow speed After turning off the temperature sensor or during the heating operation except defrosting the indoor fan will run at low speed for 30s and then stop running Heating overload protection During the running of the compressor the ...

Page 19: ...ion stops 2 In HEAT mode 1 hours after SLEEP mode starts temp will become 2 ºC lower than temp setting After another 1 hours temp decrease by 2 ºC further After more another 3 hours temp rises by 1 ºC further The unit will run for further 3 hours then stops Temp is lower than temp setting so that room temperature won t be too high for your sleep Temp setting Decreases 2 ºC Decreases 2 ºC Unit stop...

Page 20: ...ncelling the power saving function the unit will restore the original setting temperature and fan speed 7 1 9 Power cut compensation Entering condition Press dormant button 10 times within 5 seconds the buzzer will ring 4 times and the present system status will be stored into the EEPROM of the indoor system After entering the power cut compensation mode the processing of the indoor system should ...

Page 21: ... 59 17 78 1230 71 5010 65 3815 1 70 1 57 16 73 9543 67 7939 62 0907 1 68 1 55 15 70 0342 64 3023 58 9863 1 66 1 54 14 66 3463 61 0123 56 0565 1 64 1 52 13 62 8755 57 9110 53 2905 1 62 1 51 12 59 6076 54 9866 50 6781 1 60 1 49 11 56 5296 52 2278 48 2099 1 58 1 47 10 53 6294 49 6244 45 8771 1 56 1 46 9 50 8956 47 1666 43 6714 1 54 1 44 8 48 3178 44 8454 41 5851 1 51 1 42 7 45 8860 42 6525 39 6112 1 ...

Page 22: ...0964 0 75 0 75 25 10 3000 10 0000 9 7000 0 75 0 75 26 9 8975 9 5974 9 2980 0 76 0 76 27 9 5129 9 2132 8 9148 0 80 0 80 28 9 1454 8 8465 8 5496 0 84 0 83 29 8 7942 8 4964 8 2013 0 87 0 86 30 8 4583 8 1621 7 8691 0 91 0 90 31 8 1371 7 8428 7 5522 0 95 0 93 32 7 8299 7 5377 7 2498 0 98 0 97 33 7 5359 7 2461 6 9611 1 02 1 00 34 7 2546 6 9673 6 6854 1 06 1 04 35 6 9852 6 7008 6 4222 1 10 1 07 36 6 7273...

Page 23: ...032 1 8516 2 54 2 38 70 2 0983 1 9393 1 7908 2 59 2 42 71 2 0337 1 8778 1 7324 2 63 2 46 72 1 9714 1 8186 1 6761 2 68 2 50 73 1 9113 1 7614 1 6219 2 73 2 54 74 1 8533 1 7064 1 5697 2 78 2 58 75 1 7974 1 6533 1 5194 2 83 2 63 76 1 7434 1 6021 1 4710 2 88 2 67 77 1 6913 1 5528 1 4243 2 92 2 71 78 1 6409 1 5051 1 3794 2 97 2 75 79 1 5923 1 4592 1 3360 3 02 2 80 80 1 5454 1 4149 1 2942 3 07 2 84 81 1 ...

Page 24: ...6 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667 0 5043 4 80 4 31 113 0 6200 0 5518 0 4907 4 86 4 36 114 0 6043 0 5374 0 4775 4 92 4 41 115 0 5891 0 5235 0 4648 4 98 4...

Page 25: ...tation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and handing over of the unit can only be considered to have been ...

Page 26: ...Domestic air conditioner 9 Dimensional drawings Deepth Wide Height unit mm unit mm 407 10 Dimensional drawings other parts Dimensional drawings 24 1810 377 Inlet grille outlet grille Back Right Left ...

Page 27: ...oken Operation sometimes stops Check the power supply A power failure of 2 to 10 cycles can stop air conditioner operation Equipment operates but does not cool or does not heat only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among rooms to ch...

Page 28: ...rent protection of AC electricity for the outdoor model F3 4 Communication fault between the IPM and outdoor PCB Page F19 6 Power voltage is too high or low Page F4 8 Overheat protection for Discharge temperature Page F8 9 Outdoor DC fan motor fault F21 10 Defrost temperature sensor failure F7 11 Suction temperature sensor failure F6 12 Ambient temperature sensor failure F25 13 Discharge temperatu...

Page 29: ...han 0 08V during compressor Decision operation Conditions z Note The values vary slightly in some models Supposed Ŷ Faulty connector connection Causes Ŷ Faulty thermistor Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector of the thermistor on the PC...

Page 30: ... detection conditions Supposed causes Troubleshooting The Data detected by the EEPROM are used to determine MCU when the data of EEPROM is error or the EEPROM is damaged ŶFaulty EEPROM data ŶFaulty EEPROM ŶFaulty PCB Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard 11 4 2 EEPROM abnormal 28 ...

Page 31: ...uses Ŷ Fan motor overheat protection Ŷ Operation halt due to breaking of the fan motor lead wires Ŷ Detection error due to faulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred How to check Fan Motor DC 1 Check connector connection 2 Check motor power supply voltage output pins 1 4 3 Check motor c...

Page 32: ...unit PCB Replace indoor fan motor PCB NO Replace indoor unit PCB Is motor control power voltage DC15V generated NO Does fan rotate smoothly NO Turn power ON and operate fan Does it rotate Yes Turn off power supply and disconnect fan motor connector then turn power ON Check output of fan motor connector Is motor power voltage DC310V g e n e r a t e d Replace fan motor Stop fan motor Turn off power ...

Page 33: ...mainboard about DC310V Measure the voltage between 3 and 4 of the terminal about DC15V Measure the voltage between 5 and 3 of the terminal about 1 6v NO Is it normal The mainboard of the outdoor unit is damaged and needs replacing N0 Yes Yes Method of malfunction detection Malfunction detection conditions Troubleshooting DC fan motor is detected by checking the fan running condition and so on when...

Page 34: ...unctions are reported after it has run for some time Malfunction unsolved Method of malfunction detection Malfunction detection conditions Troubleshooting IPM protection is detected by checking the compressor running condition and so on ŶThe system leads to IPM protection due to over current ŶThe compressor faulty leads to IPM protection Ŷcircuit component of IPM is broken and led to IPM protectio...

Page 35: ... NO Yes NO The compressor is started normally but malfunctions are reported after it has run for some time Check the power supply is too low or too high NO Method of malfunction detection Malfunction detection conditions Troubleshooting he current of the compressor is too high when the IPM Module is damaged or the compressor is damaged power supply voltage is too low or too high Supposed causes LE...

Page 36: ...board with a new one Replace the outdoor IPM module with a new one YES NO NO YES Malfunction unsolved 1 Pull out and reinsert the terminals 2 Replace connected wire Method of malfunction detection Malfunction detection conditions Troubleshooting Communication is detected by checking the IPM module and the outdoor PCB ŶThe outdoor PCB broken leads to communication fault ŶThe IPM module broken leads...

Page 37: ...r supply 310VDC with a multimeter check whether the power is 150 V or 390V Method of malfunction detection Malfunction detection conditions Troubleshooting An abnormal voltage rise or fall is detected by checking the specified voltage detection An voltage signal is fed from the voltage detection circuit to the microcomputer ŶSupply voltage not as specified ŶThe IPM module is broken ŶThe outdoor PC...

Page 38: ...ure is below 110ć Pull out the exhaust sensor and measure its resistance at standard temperatures according to the resistance temperature table the results deviate much The sensor is damaged Replace the sensor with a new one The outdoor mainboard is damaged and needs be replaced YES NO NO YES Method of malfunction detection Malfunction detection conditions Troubleshooting The Discharge temperature...

Page 39: ...ust 1 Reconnect the linking cable 2 Replace the linking cable with new one Method of malfunction detection Malfunction detection conditions Troubleshooting Communication is detected by checking the indoor PCB and the outdoor PCB ŶThe outdoor PCB broken leads to communication fault ŶThe indoor PCB broken leads to communication fault ŶCommunication wiring disconnected ŶThe indoor PCB is broken ŶThe ...

Page 40: ...door unit with a multimeter If 230VAC is available but 310DC not the power module is damaged replace it with a new one Test the outdoor power supply 230VAC and 310VDC with a multimeter The outdoor mainboard is damaged replace it with a new one The indoor mainboard is damaged replace it with a new one If the value varies between 0 and 80 VAC the outdoor mainboard is damaged replace it with a new on...

Page 41: ...mes IPM Module is damaged and needs replacing the Malfunctions exist also the compressor is damaged replace a new one YES NO YES Malfunction unsolved Maybe there is some disturbance Method of malfunction detection Malfunction detection conditions Troubleshooting The position of the compressor rotor can not detected normally when the wiring of compressor is wrong or the connection is poor or the co...

Page 42: ... 2 Reinstall the fan Use some tools to measure the pressure of systemˈ YES NO YES NO Method of malfunction detection Malfunction detection conditions Troubleshooting High work intense control is activated in the heating mode if the temperature being sensed by the heat exchanger thermistor exceeds the limit Activated when the temperature being sensed by the heat exchanger rises above 65ć twice in 3...

Page 43: ...Circuit diagrams Domestic air conditioner Circuit diagrams 41 ...

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