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Haier 1U26QE4ERA Service Manual

Manual is about: Wall Mounted Type DC Inverter FREE MATCH N-Series

Summary of 1U26QE4ERA

  • Page 1

    Service manual wall mounted type dc inverter free match n-series 1u82sa2era 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 potent...

  • 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 8 2 s a 2 e a r the maximum combination number type of outdoor unit : u (normal type) nominal cooling capacity (2800w) platform of outdoor units: s (s platform) australia version number heat pump & r410a refrigerant ...

  • 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 do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire. Be sure to install the packing and seal on the installation frame properly. If the packing...

  • Page 8

    Introduction domestic air conditioner check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can cause an electrical shock. Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 m ohm or higher. Faulty insulati...

  • 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 tl o v nominal capacity and nominal input g n it a e h g n il o o c capacity rated kw btu/h power consumption(rated) kw 53 . 3 3.31 w / w p o c s / r e e ...

  • Page 10: ˊsensors List

    Specification domestic air conditioner technical specifications-others refrigerant circuit refrigerant type r410a refrigerant charge kg 1.48 maximum allowable distance between indoor an outdoor m 25 maximum allowable level difference m 15 refrigerant control capillary piping connections (external di...

  • Page 11: ˊpinping Diagrams

    Pinping diagrams domestic air conditioner 4 ˊpinping diagrams 11.

  • Page 12: Operation Range

    Operation range domestic air conditioner 5 operation range 12 -10 0 -20 16 32 -10 -20 -15.

  • Page 13

    Wiring diagrams domestic air conditioner 6. Printed circuit board connector wiring diagram 1 3 connectors pcb (1) (outdoor control pcb) note: 09k -12kseries needn’t connect with cn6 and cn7 other designations 1) fuse 1, (25a, 250vac); fuse 2(1a, 250vac) 2) led 1 keep light representative normal, if ...

  • Page 14

    Connector wiring diagram domestic air conditioner 1 4 pcb (1) cn1 cn2 cn36 cn24 cn10 cn9 cn22 cn11 cn17 cn50 cn47 cn23 cn25 cn28 cn3 cn15 cn7 cn6 cn45.

  • Page 15

    Connector wiring diagram domestic air conditioner 1 5 pcb (2) cn4 cn3 cn11 cn10 cn1 cn2 cn9 cn7 cn6 cn5 cn8.

  • Page 16: Wiring Diagrams

    Functions and control domestic air conditioner wiring diagrams 1 $ ac-n out cn9 cn10 ac-l out cn11 4-way valve m cn22 cn15 valve a cn3 pe po w er bl(or w) y/g cn36 comb coma n r cn1 cn2 ac-n ac-l fuse1 t25a 250vac cn24 cn23 module com module power t o indo o r un it cn3 cn10 b bl bl or cn5 cn1 cn4 c...

  • Page 17: 7. Functions And Control

    Functions and control 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 7.1.1.2 the starting of compressor 7.1.1.3 the speeds of increasing...

  • Page 18

    Functions and control domestic air conditioner 1 8 z h 4 7 2 z h _ x a m 2 3 c _ h w 2 3 wh_c 40 max_hz3 90 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. Whe...

  • Page 19

    Functions and control 7.1.3 ˖the control of the outdoor electronic expansion valve when starting the compressor: the opening size of the valve must be guaranteed to have entered into the standard opening size, and then the compressor can be started. When refrigeration is in vain (the machine is shut...

  • Page 20

    Functions and control 7.1.5 ˖protection function 7.1.5.1 ˖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 cou...

  • Page 21

    Functions and control remarks: the outdoor unit 7.1.5.3 ˖the control of preventing the overcurrent of the compressor˖ ƽduring the starting process of the compressor, if the current of the compressor is greater than 15a for 3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if...

  • Page 22

    Functions and control when tpg_indoor begins to rise again, and ice_temp_2 İtpg_indoorİ ice_temp_3ć, the frequency of thecompressor doesn’t change. When ice_temp_3 LJtpg_indoorLJice_temp_4ć, the frequency of the compressor increases at the speed of 1hz/10seconds. For example, tpg_indoor İ0ćˈlast for 2...

  • Page 23

    Functions and control f21 10 frost-removing temperature sensor failure f6 12 ambient temperature sensor failure f25 13 exhaust temperature sensor failure e7 15 communication fault between indoor and outdoor units f11 18 deviate from the normal for the compressor ---- 19 loop of the station detect er...

  • Page 24

    Functions and control -26 130.2371 117.4366 105.7989 -1.87 1.70 -25 122.8484 110.9627 100.1367 -1.85 1.69 -24 115.9272 104.8882 94.8149 -1.83 1.67 -23 109.4410 99.1858 89.8106 -1.81 1.66 -22 103.3598 93.8305 85.1031 -1.80 1.64 -21 97.6556 88.7989 80.6728 -1.78 1.63 -20 92.3028 84.0695 76.5017 -1.76 ...

  • Page 25

    Functions and control 19 13.3431 12.8572 12.3778 -0.88 0.87 20 12.7718 12.3223 11.8780 -0.86 0.85 21 12.2280 11.8126 11.4011 -0.83 0.83 22 11.7102 11.3267 10.9459 -0.81 0.80 23 11.2172 10.8634 10.5114 -0.78 0.78 24 10.7475 10.4216 10.0964 -0.75 0.75 25 10.3000 10.0000 9.7000 -0.75 0.75 26 9.8975 9.5...

  • Page 26

    Functions and control 64 2.5396 2.3611 2.1932 -2.31 2.17 65 2.4591 2.2840 2.1195 -2.36 2.21 66 2.3815 2.2098 2.0486 -2.40 2.25 67 2.3068 2.1383 1.9803 -2.45 2.29 68 2.2347 2.0695 1.9147 -2.49 2.34 69 2.1652 2.0032 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 2.4...

  • Page 27

    Functions and control 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 4.45 116 0.5743 0.5100 0.4524 -...

  • Page 28

    Functions and control -2 2434.5487 2112.5459 1831.4826 -2.56 2.24 -1 2296.6230 1996.2509 1733.6024 -2.55 2.23 0 2167.2730 1887.0018 1641.4966 -2.53 2.22 1 2045.9191 1784.3336 1554.7931 -2.52 2.21 2 1932.0242 1687.8144 1473.1460 -2.50 2.20 3 1825.0899 1597.0431 1396.2333 -2.48 2.19 4 1724.6540 1511.6...

  • Page 29

    Functions and control 43 239.0983 221.9825 205.9065 -1.71 1.61 44 228.4809 212.4060 197.2844 -1.69 1.59 45 218.3860 203.2887 189.0648 -1.67 1.57 46 208.7855 194.6066 181.2273 -1.65 1.55 47 199.6531 186.3369 173.7524 -1.63 1.54 48 190.9639 178.4584 166.6217 -1.60 1.52 49 182.6945 170.9508 159.8181 -1...

  • Page 30

    Functions and control 88 38.9643 37.5045 36.0668 -1.11 1.09 89 37.6569 36.2078 34.7831 -1.14 1.13 90 36.3996 34.9622 33.5513 -1.18 1.16 91 35.1903 33.7653 32.3689 -1.22 1.19 92 34.0269 32.6151 31.2338 -1.26 1.23 93 32.9075 31.5096 30.1438 -1.30 1.27 94 31.8302 30.4467 29.0970 -1.33 1.30 95 30.7933 2...

  • Page 31

    Functions and control 133 9.7563 8.9971 8.2895 -3.00 2.80 134 9.4901 8.7441 8.0495 -3.05 2.84 135 9.2322 8.4993 7.8175 -3.09 2.88 136 8.9824 8.2623 7.5931 -3.14 2.92 137 8.7404 8.0329 7.3760 -3.19 2.96 138 8.5059 7.8108 7.1660 -3.24 3.00 139 8.2787 7.5958 6.9629 -3.29 3.04 140 8.0584 7.3875 6.7664 -...

  • Page 32: 8.Dimensional Drawings

    Dimensinal drawings domestic air conditioner 8.Dimensional drawings 9.Center of gravity 3 3 920 1018 762 385 385 920 12.7 3/4 920 288 762 374 385 132 unit:mm unit:mm.

  • Page 33

    Connector wiring diagram domestic air conditioner 1 0.Service diagnosis 1 0.1 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 ...

  • Page 34

    Connector wiring diagram domestic air conditioner 35 indoor malfunction e2 -- heat-exchange sensor failure page34 e35 g a p r o r r e m o r p e e r o o d n i - - 4 e e14 -- indoor fan motor malfunction page35 outdoor malfunction e35 g a p r o r r e m o r p e e r o o d t u o 1 2 1 f f1 2 e36 g a p m ...

  • Page 35

    Seivice diagnosis domestic air conditioner 36 thermistor resistance check method: remove the connector of the thermistor on the pcb, and measure the resistance of thermistor using tester. The relationship between normal temperature and resistance is shown in the value of indoor thermistor. 10.3.2 ee...

  • Page 36

    1 0.3.4 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 supposed Ƶ dc fan motor protection dues to the dc fan motor faulty causes Ƶ dc fan motor protection dues to faulty pcb troubleshooting * caution be...

  • Page 37

    1 0.3.5 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 Ŷ the system leads to ipm protection due to over current decision Ŷ the compressor faulty leads to ipm protection co...

  • Page 38

    1 0.3.6 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 power supply voltage is too low or too high sup...

  • Page 39

    10 b c p r o o d t u o d n a m p i n e e w t e b t l u a f n o i t a c i n u m m o c e h t 7 . 3 . Outdoor display: led1 flash 4 times method of communication is detected by checking the ipm module and the outdoor pcb malfunction detection malfunction Ŷ the outdoor pcb broken leads to communication ...

  • Page 40

    10 t l u a f e g a t l o v r e d n u r o r e v o y l p p u s r e w o p 8 . 3 . 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 an voltage...

  • Page 41

    1 0.3.9 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 the compressor discharge temperature is above 1...

  • Page 42

    1 0.3.10 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 Ŷ the outdoor pcb broken leads to communication fault decision Ŷ the ...

  • Page 43

    1 0.3.11 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 wiring of compressor is wrong or the connecti...

  • Page 44

    1 0.3.12 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 malfunction activated when the temperature being se...

  • Page 45

    Capacity domestic air conditioner 1 1 perforance and curves diagrams 1 1.1 cooling capacity temperature curves 54 indoor temp. Db/wb -15 ć -10 ć 0 ć 10 ć 20 ć 25 ć 30 ć 35 ć 40 ć 46 ć 18/12 ć 5244 5258 5281 5139 4877 5941 6463 6249 6190 5772 21/15 ć 5506 5534 5451 5287 5064 6278 6881 6571 6419 6076 ...

  • Page 46

    Capacity domestic air conditioner 1 1.2 power consumption temperature curves 55 indoor temp. Db/wb ˉ15ć ˉ10ć 0 ć 10 ć 20 ć 25 ć 30 ć 35 ć 40 ć 46 ć 18/12 ć 1692 1696 1704 1658 960 1342 1703 2046 2435 2599 21/15 ć 1721 1729 1703 1652 977 1369 1768 2110 2477 2697 24/16 ć 1884 1899 1842 1832 1076 1519 ...

  • Page 47

    Domestic air conditioner capacity 1 1.3 heating capacity temperature curves 56 outdoor temp. Db/wb 15 ć 20 ć 25 ć -25 ć 3555 3225 3160 -20 ć 3950 3600 3555 -15 ć 4266 3975 3792 -10 ć 6556 5995 5530 -7/-8 ć 8057 7305 6789 2/1 ć 8886 8024 7276 7/6 ć 8383 7742 6589 12/11 ć 7504 6913 6027 18/16 ć 6140 5...

  • Page 48

    Domestic air conditioner 1 1.4 power consumption value -temperature curves capacity · 57 outdoor temp. Db/wb 15 ć 20 ć 25 ć -25 ć 2012 2236 2459 -20 ć 2246 2496 2745 -15 ć 2480 2756 3031 -10 ć 2720 3023 3325 -7/-8 ć 2941 3268 3594 2/1 ć 2861 3179 3497 7/6 ć 2273 2526 2778 12/11 ć 1569 1743 1917 18/1...

  • Page 49

    Domestic air conditioner 1 1.5 cooling discharge pressure curves capacity 58 outdoor temp. (humidity 46%) db/wb 21/15 ć 27/19 ć 32/23 ć -15 ć 1811 1862 1971 -10 ć 1827 1913 1984 0 ć 1876 1938 2016 10 ć 1877 1964 2077 20 ć 1981 2040 2172 25 ć 2169 2270 2406 30 ć 2366 2448 2560 35 ć 2477 2550 2698 40 ...

  • Page 50

    Domestic air conditioner 1 1.6 cooling suction pressure curves capacity 59 outdoor temp. (humidity 46%) db/wb 21/15 ć 27/19 ć 32/23 ć -15 ć 664 754 876 -10 ć 671 761 884 0 ć 678 769 893 10 ć 685 809 902 20 ć 692 818 950 25 ć 728 826 960 30 ć 735 834 969 35 ć 774 860 989 40 ć 851 946 1088 46 ć 937 10...

  • Page 51

    Domestic air conditioner capacity 1 1.7 heating discharge pressure curves 6 0 outdoor temp db/wb 15 ć 20 ć 25 ć -25 ć 2223 2345 2466 -20 ć 2326 2479 2604 -15 ć 2467 2580 2641 -10 ć 2600 2781 2845 -7/-8 ć 2978 3183 3267 2/1 ć 3317 3451 3639 7/6 ć 3173 3350 3490 12/11 ć 3098 3250 3404 18/16 ć 2872 305...

  • Page 52

    Capacity domestic air conditioner 1 1.8 heating suction pressure curves 61 outdoor temp db/wb 15 ć 20 ć 25 ć -25 ć 358 319 332 -20 ć 385 379 392 -15 ć 393 419 432 -10 ć 485 479 492 -7/-8 ć 557 583 596 2/1 ć 676 702 715 7/6 ć 809 835 848 12/11 ć 926 952 965 18/16 ć 1093 1119 1132 24/20 ć 1279 1305 13...

  • Page 53: 12 Circuit Diagrams

    Circuit diagrams domestic air conditioner 12 circuit diagrams 1 2.1 outdoor unit control board circuit diagrams 62.

  • Page 54

    Circuit diagrams 63 domestic air conditioner.

  • Page 55

    Circuit diagrams domestic air conditioner 1 2.2 module board circuit diagram 64.

  • Page 56: 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: zou na he shiquan shen weijie.