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Haier 1U12BE8ERA Service Manual

Other manuals for 1U12BE8ERA: Installation Manual
Manual is about: Wall Mounted Type DC Inverter

Summary of 1U12BE8ERA

  • Page 1

    Service manual wall mounted type dc inverter 1u12be8era model no. 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 attem...

  • Page 2: Contents

    Contents domestic air conditioner contents 1. Introduction ............................................................................................1 2. Specifications.........................................................................................7 3. Sensors list ..........................

  • Page 3: 1. Introduction

    Introduction domestic air conditioner 1. Introduction 1.1 model name explanation 1 u 2 b e 8 e a r the maximum combination number type of outdoor unit : u (normal type) nominal cooling capacity (12000btu/h) platform of outdoor units: 35 (35 platform) europe version number heat pump & r410a refrigera...

  • Page 4

    Introduction domestic air conditioner 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 ar...

  • Page 5

    Introduction domestic air conditioner 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. Be sure to prov...

  • Page 6

    Introduction domestic air conditioner 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...

  • Page 7

    Introduction domestic air conditioner 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...

  • Page 8

    Introduction domestic air conditioner 1.2.5 using icons list icon type of information description note note a “note” provides information that is not indispensable, but may nevertheless be valuable to the reader, such as tips and tricks. Caution caution a “caution” is used when there is danger that ...

  • Page 9: 2 Specifications

    Specification domestic air conditioner 2 specifications nominal distribution system voltage 1 / e s a h p 0 5 z h y c n e u q e r f 0 3 2 v e g a t l o v nominal capacity and nominal input cooling heating capacity rated kw 3.6 （1.0-4.1） btu/h power consumption(rated) kw 1.12 1.02 0 . 4 1 . 6 w / w p...

  • Page 10: 3ˊsensors List

    Specification domestic air conditioner technical specifications-others refrigerant circuit refrigerant type r410a refrigerant charge kg 0.78 maximum allowable distance between indoor an outdoor m 15 maximum allowable level difference m 10 refrigerant control capillary piping connections (external di...

  • Page 11: 4ˊpiping Diagrams

    Pinping diagrams domestic air conditioner 4ˊpiping diagrams.

  • Page 12: 5ˊoperation Range

    Operation range domestic air conditioner 5ˊoperation range 10

  • Page 13

    Printed circuit board connector wiring diagram 11 domestic air conditioner 6. Printed circuit board connector wiring diagram connectors pcb (1) (control pcb) for 1u09br4era 1) cn1, cn2 connector for power n and l 2) cn3 connector for ground 3) cn22 connector for dc power 15vand 5v to the module boar...

  • Page 14

    Printed circuit board connector wiring diagram 12 domestic air conditioner pcb (1) cn26 cn22 cn1 cn2 cn3 cn23 cn24 cn4 cn10 cn21 cn9 cn8 cn19.

  • Page 15

    Printed circuit board connector wiring diagram 13 domestic air conditioner pcb(2) cn6 cn7 cn10 cn3 cn2 cn1 cn11 cn5 cn4.

  • Page 16

    Wiring diagrams 14 domestic air conditioner wiring diagrams 0010584656 ac-n out cn8 cn9 ac-l out cn10 valve a cn18 xq cn21 cn3 pe y/g cn1 cn2 ac-n ac-l fuse1 t25a 250vac cn23 cn22 module com module power cn7 cn10 b bl bl or cn2 cn8 cn6 cn1cn5 cn9 cn11 cn3cn4 b m r(u) s(v) c(w) b w r bl ˄ w ˅ br ˄ b ...

  • Page 17: 7. Functions and Control

    Functions and control 15 domestic air conditioner 7. Functions and control 7.1 main functions and control specification 7.1.1 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 minimun operat...

  • Page 18

    Functions and control 16 domestic air conditioner refrigeration/dehumidification mode: serial no. Temperature scope frequency limitation 1 wh_c max_hz1 46hz 2 wh_c max_hz2 72hz 3 wh_c max_hz3 80hz 4 wh_c max_hz4 65hz 5 wh_c>=48 max_hz5 50hz remarks: the above are not only the maximum frequency limit...

  • Page 19

    Functions and control 17 domestic air conditioner 7.1.2 the outdoor fan control (exchange fan) when the fan is changed among every airflow speed (including stop blowing), in order to avoid the airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and then it ca...

  • Page 20

    Functions and control 18 domestic air conditioner 7.1.4 four way 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 ...

  • Page 21

    Functions and control 19 domestic air conditioner tc(ć) the compressor stops fgh_t1 65ć fgh_t1ˉ2 fgh_t2ˉ2 n decreasing the frequency rapidly fgh_t2 59ć p decreasing the frequency slowly fgh_t3 55ć fgh_t3ˉ2 fgh_t4—2 q prohibiting increasing the frequency fgh_t4 51ć r increasing slowly fgh_t5 47ć fgh_...

  • Page 22

    Functions and control 20 domestic air conditioner decreases by 1a. (2) when the outdoor environment temperature is higher than 50ć, ac current protection value decreases by 2.5a. 7.1.5.5 anti-freezing protection of the indoor heat exchanger when refrigerating/heating, prevent freezing. Tpg_indoor is...

  • Page 23

    Functions and control 21 domestic air conditioner the compressor. When the temperatures are lower than 60ć, relieve the defrosting temperature protection. 7.2 value of thermistor ambient sensor, defrosting sensor, pipe sensor r25ć=10k¡f3% b25ć/50ć=3700kf3% temp.(ć) max.(k Ω) normal(kΩ) min.(kΩ) tole...

  • Page 24

    Functions and control 22 domestic air conditioner 6 24.1432 22.8656 21.6361 -1.20 1.16 7 23.0284 21.8398 20.6939 -1.18 1.14 8 21.9714 20.8659 19.7982 -1.15 1.12 9 20.9688 19.9409 18.9463 -1.13 1.09 10 20.0176 19.0621 18.1358 -1.11 1.07 11 19.1149 18.2270 17.3646 -1.08 1.05 12 18.2580 17.4331 16.6305...

  • Page 25

    Functions and control 23 domestic air conditioner 50 4.0588 3.8287 3.6084 -1.70 1.62 51 3.9206 3.6943 3.4780 -1.74 1.66 52 3.7878 3.5654 3.3531 -1.78 1.70 53 3.6601 3.4416 3.2332 -1.82 1.74 54 3.5374 3.3227 3.1183 -1.87 1.78 55 3.4195 3.2085 3.0079 -1.91 1.82 56 3.3060 3.0989 2.9021 -1.95 1.85 57 3....

  • Page 26

    Functions and control 24 domestic air conditioner 94 1.0314 0.9326 0.8424 -3.80 3.46 95 1.0030 0.9061 0.8179 -3.85 3.51 96 0.9756 0.8806 0.7941 -3.90 3.55 97 0.9490 0.8558 0.7711 -3.96 3.60 98 0.9232 0.8319 0.7489 -4.01 3.64 99 0.8983 0.8088 0.7275 -4.07 3.69 100 0.8741 0.7863 0.7067 -4.12 3.74 101 ...

  • Page 27

    Functions and control 25 domestic air conditioner -19 6953.2930 5851.9864 4920.6791 -2.82 2.38 -18 6515.8375 5494.2064 4628.5894 -2.80 2.37 -17 6108.5393 5160.4621 4355.6078 -2.79 2.37 -16 5729.1413 4848.9963 4100.3708 -2.77 2.36 -15 5375.5683 4558.1906 3861.6201 -2.76 2.35 -14 5045.9114 4286.5535 3...

  • Page 28

    Functions and control 26 domestic air conditioner 25 564.4275 511.0760 462.3510 -2.09 1.90 26 536.9865 486.9352 441.1516 -2.07 1.89 27 511.0105 464.0500 421.0258 -2.05 1.87 28 486.4151 442.3499 401.9146 -2.03 1.86 29 463.1208 421.7683 383.7626 -2.01 1.84 30 441.0535 402.2430 366.5175 -1.99 1.83 31 4...

  • Page 29

    Functions and control 27 domestic air conditioner 69 78.9116 75.6668 72.4902 -1.10 1.08 70 75.8343 72.8004 69.8249 -1.08 1.06 71 72.8916 70.0561 67.2703 -1.05 1.03 72 70.0770 67.4283 64.8213 -1.03 1.01 73 67.3844 64.9115 62.4731 -1.00 0.99 74 64.8080 62.5006 60.2211 -0.98 0.96 75 62.3423 60.1906 58....

  • Page 30

    Functions and control 28 domestic air conditioner 113 17.4214 16.3564 15.3427 -2.10 2.00 114 16.9023 15.8542 14.8577 -2.15 2.04 115 16.4010 15.3696 14.3902 -2.19 2.08 116 15.9167 14.9020 13.9394 -2.23 2.12 117 15.4489 14.4506 13.5047 -2.27 2.16 118 14.9968 14.0149 13.0855 -2.32 2.19 119 14.5599 13.5...

  • Page 31: 8.Dimensional Drawings

    Dimensinal drawings domestic air conditioner 8.Dimensional drawings 9.Center of gravity 4 0 0 4 0 0 4 unit:mm unit:mm 780

  • Page 32: 10 Service Diagnosis

    Service diagnosis domestic air conditioner 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 operatio...

  • Page 33

    Service diagnosis domestic air conditioner 10.2 problem symptoms and measures e r u s a e m f o s l i a t e d m e t i k c e h c m o t p m y s none of the units operates check the power supply. Check to make sure that the rated voltage is supplied. Check the indoor pcb check to make sure that the ind...

  • Page 34

    Service diagnosis 32 domestic air conditioner 10.3 error codes and description indoor display code indication fault description reference page indoor displaying panel code indication outdoor (led1 flash times) indoor and outdoor e7 15 communication fault between indoor and outdoor units page .42 ind...

  • Page 35

    Service diagnosis 33 domestic air conditioner 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 led...

  • Page 36

    Service diagnosis 34 domestic air conditioner 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 eepr...

  • Page 37

    Service diagnosis 35 domestic air conditioner 10.3.3 indoor ac fan motor malfunction indoor display e14 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 detected rotation feedb...

  • Page 38

    Service diagnosis 36 domestic air conditioner 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 c...

  • Page 39

    Service diagnosis 37 domestic air conditioner check whether terminal on the outdoor mainboard is well inserted. Is it normal? Yes no reinsert the terminals electrify the machine again and turn it on in the cool state with the remote controller. Check whether motor can run˛ yes measure the voltage be...

  • Page 40

    Service diagnosis 38 domestic air conditioner 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 ■ th...

  • Page 41

    Service diagnosis 39 domestic air conditioner 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. Conditions p...

  • Page 42

    Service diagnosis 40 domestic air conditioner electrify the machine again and turn it on with the remote controller, if malfunctions are reported before or upon the compressor being started up, ipm module is damaged and needs replacing. Repair the power supply the system may have been over or under ...

  • Page 43

    Service diagnosis 41 domestic air conditioner 10.3.7 the communication fault between ipm and outdoor pcb outdoor display: led1 flash 4 times method of communication is detected by checking the ipm module and the outdoor pcb malfunction detection malfunction ■ the outdoor pcb broken leads to communic...

  • Page 44

    Service diagnosis 42 domestic air conditioner 10.3.8 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 malfunc...

  • Page 45

    Service diagnosis 43 domestic air conditioner 10.3.9 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 th...

  • Page 46

    Service diagnosis 44 domestic air conditioner 10.3.10 the communication fault between indoor and outdoor indoor display e7 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 broke...

  • Page 47

    Service diagnosis 45 domestic air conditioner ˄a˅ no yes yes check the indoor mainboard. No if the voltage is of a constant value of 0v dcto5v dc yes measure the voltage between jumpers 3 and 4 of ic1 on the indoor mainboard with a multimeter. No the outdoor mainboard is damaged; replace them with a...

  • Page 48

    Service diagnosis 46 domestic air conditioner 10.3.11 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 ...

  • Page 49

    Service diagnosis 47 domestic air conditioner 10.3.12 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 malfun...

  • Page 50

    Performance and curves diagrams domestic air conditioner 11.Performence and curves diagrams 11.1 cooling capacity-temperature curves 48 indoor temp. Db/wb 10ć 15ć 20ć 25ć 30ć 35ć 38ć 40ć 43ć 21/15ć 2742 2676 2601 2454 3060 3315 3231 3164 2896 24/16ć 2832 2832 2712 2588 3226 3527 3431 3262 3120 27/19...

  • Page 51

    Performance and curves diagrams domestic air conditioner 11.2 cooling power consumption value- temperature curves 49 indoor temp. Db/wb 10ć 15ć 20ć 25ć 30ć 35ć 38ć 40ć 43ć 21/15ć 885 863 839 506 724 916 1117 1301 1362 24/16ć 885 885 848 528 748 953 1174 1328 1452 27/19ć 961 969 935 569 822 1045 1265...

  • Page 52

    Performance and curves diagrams domestic air conditioner 11.3 cooling discharge pressure curves 50 outdoor temp. (humidity 46%) db/wb 21/15ć 27/19ć 35/24ć 10ć 1869 1973 2099 15ć 1946 1999 2112 20ć 1929 2025 2118 25ć 2034 2104 2212 30ć 2194 2341 2425 35ć 2438 2499 2608 38ć 2612 2683 2836 40ć 2919 302...

  • Page 53

    Performance and curves diagrams domestic air conditioner 11.4 cooling suction pressure curves 51 outdoor temp. (humidity 46%) db/wb 21/15ć 27/19ć 35/24ć 10ć 4 0 0 1 4 6 8 8 3 7 15ć 4 1 0 1 3 7 8 6 4 7 20ć 4 2 0 1 1 9 8 3 5 7 25ć 5 4 0 1 0 0 9 3 9 7 30ć 6 5 0 1 7 4 9 5 3 8 35ć 1 1 1 1 6 5 9 3 4 8 38ć...

  • Page 54

    Performance and curves diagrams domestic air conditioner 11.5 heating capacity-temperature curves 52 outdoor temp. Db/wb 10ć 20ć 27ć -15ć 1 2 9 1 4 1 0 2 1 6 1 2 -10ć 2 0 8 2 7 3 0 3 2 2 3 3 -7/-8ć 0 4 4 3 1 0 7 3 2 8 0 4 2/1ć 3 9 4 3 1 5 8 3 4 6 3 4 7/6ć 0 9 4 3 2 2 9 3 8 4 2 4 12/11ć 4 5 0 3 3 0 5...

  • Page 55

    Performance and curves diagrams domestic air conditioner 11.6 heating power consumption value- temperature curves 53 outdoor temp. Db/wb 10 ć 20 ć 27 ć -15 ć 3 1 2 1 4 4 1 1 7 8 0 1 -10 ć 4 2 4 1 6 5 3 1 2 0 3 1 -7/-8 ć 8 1 5 1 6 4 4 1 9 5 3 1 2/1 ć 0 6 5 1 6 8 4 1 2 1 4 1 7/6 ć 0 3 4 1 2 6 3 1 7 0 ...

  • Page 56

    Performance and curves diagrams domestic air conditioner 11.7 heating discharge pressure curves 54 outdoor temp db/wb 10ć 20ć 27ć -15ć 6 2 8 2 0 1 7 2 4 5 5 2 -10ć 1 7 0 3 2 2 9 2 2 7 7 2 -7/-8ć 3 2 4 3 4 4 3 3 5 5 1 3 2/1ć 3 2 7 3 6 2 6 3 3 8 3 3 7/6ć 5 2 6 3 0 2 5 3 0 7 3 3 12/11ć 4 0 5 3 4 1 4 3 ...

  • Page 57

    Performance and curves diagrams domestic air conditioner 11.8 heating suction pressure curves 55 outdoor temp db/wb 10ć 20ć 27ć -15ć 6 0 4 6 8 3 7 4 3 -10ć 9 4 4 9 2 4 0 0 4 -7/-8ć 3 5 5 3 3 5 4 9 4 2/1ć 2 7 6 2 5 6 3 1 6 7/6ć 5 0 8 5 8 7 6 4 7 12/11ć 6 0 9 6 8 8 7 4 8 18/16ć 1014 1053 1073 24/20ć 1...

  • Page 58

    Circuit diagrams 56 domestic air conditioner 12.1 outdoor unit control board circuit diagrams gnd 4 gnd 3 gnd 2 gnd 1 vcc 8 gnd 7 scl 6 sda 5 ic6 24c04 1 cn2 ac-l 1 cn1 ac-n 咥 ⱑ fuse1 t25a 250vac rv1 s14k350 r1 1m r12 100/1w cx 1 225 /27 5v l1 16mh/12a rv 2 s 1 4k 350 rv 3 s 1 4k 350 cx2 225/275v cy...

  • Page 59

    Circuit diagrams 57 domestic air conditioner r19 10/0.5w ic3 tl431c c3 102/100v e5 470u/25v e6 470u /25v e3 22u/50v d7 er202 c2 102/100v r18 10/0.5w r22 1k/1w r17 10 +15v r32 5k/1% r30 1.5k r31 20k c5 104/50v r16 2/1w r24 5.1k/1% r1 4 100k /2 w c4 102/50v cy8 472/1kv cx5 104/275v d9 er202 d10 er106 ...

  • Page 60

    Circuit diagrams 58 domestic air conditioner 12.2 module board circuit diagram c009 103 ic8 irgp20b60pdpbf 1 2 3 4 bg1 d25bx60b d207 ffa30u60dn c404 474/630v c405 104/275v l 5.2mh/15a ac-l ac-n lo li cn8 cn9 cn7 cn6 rs1 0.015/5w r215 10k rs2 0.02/5w r 0 03 4. 7 k r0 0 2 4 .7 k r 0 07 4. 7 k r006 100...

  • Page 61: Sincere Forever

    Circuit diagrams domestic air conditioner sincere forever haier group haier industrial park, no.1, haier road 266101, qingdao, china_ http˖//www.Haier.Com edited by : signed by : approved by: jing yanqin yang xiaodong he 6 hiquan wu hongjin.

  • Page 62: Wall Mounted Type

    Wall mounted type dc inverter free match t-series 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...

  • Page 63

    Removal procedure 1.Removal of outdoor panel 'rphvwlf$lu&rqglwlr.

  • Page 64

    Removal procedure 2 domestic air condition.

  • Page 65

    4 removal procedure 3 domestic air condition.

  • Page 66

    Removal procedure 2.Removal of electrical box 'rphvwlf$lu&rqglwlr.

  • Page 67

    Removal procedure 3.Removal of fan and fan motor 'rphvwlf$lu&rqglwlr.

  • Page 68

    Removal procedure 4.Removal of fan motor brcked and partition 'rphvwlf$lu&rqglwlr.

  • Page 69

    Removal procedure 7 domestic air condition.

  • Page 70

    Removal procedure 5.Removal of compressor and heat exchanger 'rphvwlf$lu&rqglwlr.

  • Page 71

    Removal procedure 9 domestic air condition.