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Haier AB122ACERA Service Manual

Manual is about: Service Manual

Summary of AB122ACERA

  • Page 1

    Commercial air conditioning service manual models features high energy efficiency infrared control type or wired control type low ambient cooling kit (optional) and low ambient heating kit (optional) new friendly refrigerant r410a, environment protection advanced technology, dc inverter control func...

  • Page 2: Contents

    2 contents contents………………………………………………………...2 1. Description of products & features………………………..3 2. Specification………………………………………………… 7 commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera 3. Safety precaution………………………………………… ..10 4. Net dimension……………………………………………… 12 5. Instal...

  • Page 3

    Commercial air conditioner 3 1.1. Products code explanation climate type: t1 (see table 1) design number (r stands for design sequence, dc inverter frequency type) product type: a stands for heat pump type, refrigerant is r22 b stands for heat pump type, refrigerant is r407c e stands for heat pump t...

  • Page 4

    Commercial air conditioner 4 1.4 product features adopt the much friendlier refrigerant r410a the air conditioner system adopts the greatly friendly refrigerant r410a, which is protective for the ozone layer and is good to avoid the earth getting warmer. Benefit for the environment. Adopt the advanc...

  • Page 5

    Commercial air conditioner 5 1.5 new friendly refrigerant r410a introduction: ■ r410a the working pressure of r410a is approximately 1.6 times higher than r22. Because the oil in the refrigerant is different, please do not mix them. Refrigerant r22 (single) r410a (mixed) r407c (mixed) oil mineral oi...

  • Page 6

    Commercial air conditioner 6 ■ piping material 1. Use the correct refrigerant piping and materials for r410a 2. For the pipe wall thickness, see the table below: pipe diameter Φ 6.35 Φ 9.52 Φ12.7 Φ15.88 Φ19.1 pipe wall thickness 0.8 0.8 0.8 1.0 1.2 note: always observe and comply with the local regu...

  • Page 7

    Commercial air conditioner 2. Specification function cooling heating capacity kw 3.52(0.9--4.4) 4.4(1.0---4.8) sensible heat ratio 0.71 w 1250(280---1650) 1210(280--1650) w 1650 1650 eer or cop w/w 2.81（c） 3.64（a） dehumidifying capacity 10‐³×m³/h power cable power source n, v, hz a / a 6.0(1.4--8.0)...

  • Page 8

    Commercial air conditioner 8 function cooling heating capacity kw 3.8(0.9--4.4) 4.1(1.0---4.8) sensible heat ratio 0.71 w 1260(280--1650) 1260(280--1650) w 1650 1650 eer or cop w/w 3.02（b） 3.25（c） dehumidifying capacity 10‐³×m³/h power cable power source n, v, hz a / a 6.0(1.4--8.0)a/8a 6.0(1.4--8.0...

  • Page 9

    Commercial air conditioner mounting-on-ceiling unit: note: ⊙ is the real time analyser norminal condition: indoor temperature (cooling): 27℃db/19℃wb, indoor temperature (heating): 20℃db outdoor temperature(cooling): 35℃db/24℃wb, outdoor temperature(heating): 7℃db/6℃wb the noise level will be measure...

  • Page 10: Warning!

    3. Safety precaution 3. Safety precaution carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of safety cautions and suggestions. Warning! Caution! Incorrect operations may result in injuries or machine damages; in some cases may ca...

  • Page 11

    Commercial air conditioner air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard. Connect earthing wire. Use discharge pipe correctly to ensure efficient discharge. Earthing wire should not be con- nec...

  • Page 12

    Commercial air conditioner 4. Net dimension 4.1 ab122acera b9 a9 :;9 gfeh d >ss 7jmz]mmt y[yvmtyqut vurmy8 lxiqtiom vqvm oiyvqvm rqw[ql vqvm >@9ss 7qtluux [tqz lqsmtyqut8 ?>9ss 7kmqrqto uvmtqto lqsmtyqut8 @99ss 7vitmr lqsmtyqut8 >@9ss 7qtluux [tqz lqsmtyqut8 ?>9ss 7kmqrqto uvmtqto lqsmtyqut8 @99ss 7...

  • Page 13

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera : ; = > ? @ a b 9ebg df=>c : 1/3 ; 03/+1 -/- = 2-, > .11 ? -,1 @ 0-3 a 1,3 b .., 45-..47684 4.3 ad122alera 6af;b 8=b=@ 6af;b 8=b=@ 4=cdb=:ed=a@ 5a>; -0 23+ 1/+ 0++ 2 4 5 4.4 au122aeera 13.

  • Page 14

    Commercial air conditioner 5. Installation instructions note : (1) fix the parts with screws (2) don't intake the strong wind directly to the outlet air-flow hole. (3) a one meter distance should be kept from the unit top (4) don't block the surroundings of the unit with sundries 2. Selection of the...

  • Page 15

    Commercial air conditioner (a) concrete foundation anchor bolt concrete foundation unit to fix by bolts (b) foundation anchor concrete foundation unit anchor bolt 5.1 installation of outdoor unit fix the unit in a proper way according to the condition of a place where it is installed by referring to...

  • Page 16

    Commercial air conditioner ¡ model: au122aeera ab122acera ac122acera ad122alera 2 16.

  • Page 17

    Commercial air conditioner electric wiring danger of bodily injury or death turn off electric power at circuit breaker or power source before making any electric connections. Ground connections must be completed before making line voltage connections. (1) selection of size of power supply and interc...

  • Page 18

    Jhmn[ff[ncih niifm sn[h^[l^ []]_mmilc_m 52 s]l_q ^lcp_l 62 i[]em[q 72 elcff qcnb [ ^c[g_n_l i` :4gg 82 jhh_l b_r[aih mj[hh_l0mbc`ncha mj[hh_l 92 sj[hh_l -5805;05=06806;gg. :2 pcj_ ]onn_l ;2 pcj_ _rj[h^_l =2 pch]_lm 542 l_[e[a_ ^_n_]nil il mi[js q[n_l 552 c[h^ n[j_ 562 s]l[j_l 572 r_`lca_l[hn icf tb_...

  • Page 19

    -7. Jhmn[ff [ momj_h^cha \ifn ti mojjiln nb_ ohcn q_cabn 0[h]bil \ifn mbiof^ \_ om_^ ch nb_ ][m_ i` [fl_[^s _rcmnm ]_cfcha2 giq h_q ]_cfcha0 om_ `fomb1ch nsj_ \ifn0\ocfn1ch nsj_ \ifn il j[lnm jl_n[l_^ ch nb_ `c_f^2 c_`il_ aicha ih chmn[ffcha0[^domn mj[]_ ni ]_cfcha2 72 jhmn[ff[ncih i` ch^iil ohcn jh...

  • Page 20

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera use the drainage hose and clip provided with unit. Insert water pipe into water plug until it reaches the white tape. Tighten the clip until head of the screw is less than 4mm from hose. Wind the drainage hose to the clip ...

  • Page 21

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera panel limitation board installation (1)install the panel board in the direction shown in the figure. (2)the incorrect direction will result in water leakage,meanwhile swing and signal receiving are displayed that cannot be...

  • Page 22

    Caution! Installation procedure install the room air conditioning unit as follows: preparing indoor unit installation first remove the intake grill a. Floor mounting (ac36/42 only suitable for exposed ceiling mounting) 1. Drilling for piping the piping and drain can exit the unit in two directions a...

  • Page 23

    68 16 21 28 381 232 26.5 26.5 2-r2.5 10 18 7.5 4-r5 68 16 21 28 381 232 26.5 26.5 2-r2.5 10 18 7.5 4-r5 wall 6mm 12.5mm fig. 11 fig. 12 fig. 13 spring washer special nut bracket caution hex bolt 8 to 13mm indoor unit fig. 14 fig. 16 remove the hole cover. Ok arrange the drain hose lower than this po...

  • Page 24

    Wiring caution (1) match the terminal block numbers and connection cable colours with those of the outdoor unit. Incorrect wiring may cause damage to the electrical parts. (2) connect the connection cables firmly to the terminal block. Incorrect installation may result in a fire. (3) always fasten t...

  • Page 25

    Q\y ]bxccf ib]h g\u`` vy ]bghu``yx uh `cwuh]cbg k\yfy wc`x ubx \ch u]f wci`x yjyb`m w]fwi`uhyx2 q\y zc``ck]b[ `cwuh]cbg g\ci`x vy ujc]xyx> m`uwyg k]h\ f]w\ gu`h -gyug]xy ufyu.2 m`uwyg k]h\ d`ybhm cz [ug gi`z]xyg -au]b`m ]b kufa gdf]b[ ufyug k\yfy h\y wcddyf hivy ubx vfuny ky`x ]g yugm hc wcffcg]cb.2...

  • Page 26

    Cuw\ cz h\y u]f gybx]b[ xiwh ubx u]f fyhifb xiwh g\u`` vy z]lyx cb h\y dfyzuvf]wuhyx duby` cz h\y z`ccf vm h\y ]fcb vfuw_yh2 q\y fywcaaybxyx x]ghubwy vyhkyyb h\y yx[y cz h\y u]f fyhifb xiwh ubx h\y ku`` ]g cjyf 594aa2 q\y [fux]ybh cz h\y wcbxybguhy kuhyf d]dy g\u`` _yyd cjyf 5,2 q\y wcbxybguhy kuhyf...

  • Page 27

    62 gbghu``uh]cb cz u]f fyhifb xiwh rgy f]jyh hc wcbbywh h\y u]f fyhifb xiwh cb h\y u]f fyhifb ]b`yh cz h\y ]bxccf ib]h0 h\yb wcbbywh h\y ch\yf ybx k]h\ h\y u]f fyhifb v`]bx2 ?G d][2 6 g\ckb2 7 q\yfau` ]bgi`uh]cb cz xiwh ?]f1gybx]b[ xiwh ubx u]f fyhifb xiwh g\u`` vy h\yfau``m ]bgi`uhyx2 d]fgh gh]w_ h...

  • Page 28

    Fub[]b[ cz h\y ]bxccf ib]h dughyb h\y bih cb h\y gigdybg]cb gwfyk ubx h\yb \ub[ h\y gigdybg]cb gwfyk ]b h\y q g`ch cz h\y gigdybg]cb dufh cz h\y ib]h2 ?]xyx k]h\ u `yjy` ayhyf0ux^igh `yjy` cz h\y ib]h k]h\]b 9aa2 u gb cfxyf hc xfu]b kuhyf bcfau``m0 h\y xfu]b d]dy g\u`` vy dfcwyggyx ug gdyw]z]yx ]b h...

  • Page 29

    Suwiia diad]b[ ldyb u`` ju`jyg eug `yu_u[y xyhywh]cb t]h\ u juwiia diad0wfyuhy juwiia zfca h\y ghcd ju`jy cz h\y cihxccf ib]h2 cadhm]b[ k]h\ fyzf][yfubh gyu`yx ]b h\y cihxccf ib]h ]g uvgc`ihy`m zcfv]xxyb2 ldyb u`` h\y ju`jyg cb h\y cihxccf ib]h2 a\yw_ k]h\ u `yu_u[y xyhywhcf cf gcud kuhyf h\uh ]z h\...

  • Page 30

    6. Parts and functions ad36nambea ad42nambea fig.1 indoor unit 1 4 6 7 3 fig.2 power oper timer comp emer 2 1 operating control panel (fig.2) 2 emergency switch 3 remote control signal receiver 4 power indicator lamp (red) 5 operation indicator lamp (green) 6 timer indicator lamp (yellow) 7 compress...

  • Page 31

    Electrical components case drain pan evaporator air outlet frame 6.3 ad122alera 6.4 au122aeera air inlet air outlet compressor (inside of unit) commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera 31.

  • Page 32

    Fqerh high4ro simeq res filseq b a healsh qeres lock rleep fan semp on off ruing mode clock code lighs qjj e v u q heas 7. Controller functions * 740:a7 + ;=34 50 @d8 a4;> 2:=29 a8;4? @4a ?42=c4?F 27429 58:a4? ?4@4a ;=34 50 0ba= 0ba= 50 2==: 3?F 740a a4@ 7867 ;43 :=d 58e 24 =>4?0a8= @a0 >?4-740a 345...

  • Page 33

    Commercial air conditioner 8. Refrigerant circuit ma in ca pi llar y ass ist an t ca pi llar y on e- w ay v alv e conden ser a ir-i nl et tem p. Se ns or t ci co olin g he at ing def ro st te m p. Sens or te cond ense r 4- w ay val ve ch eck va lv e hi gh p ress ur e sw itch dis cha rge tem p. Sen s...

  • Page 34

    9 . Electrical control functions 9. 1. Outdoor electric control functions commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera system main functions definition of sensor sign: tnh=indoor ambient temp., twh=outdoor ambient temp., tpg=indoor coil, ttc=discharge, tcs= outdoor c...

  • Page 35

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera ambient temperature, and 3 minutes later, the unit will adjust according to the outdoor ambient temperature and compressor running frequency. Fan speed chart in 3 minutes after compressor starts up: ambient temp. ~10 10~25...

  • Page 36

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera initialize movement: 600 pulse close, then 50 pulse open, that is stop at 50 pulse at last; full-open: 480 pulse open(e); upper/lower limitation of open angle: 480---50 pulse; driving speed: open direction: 30.3 pps; close...

  • Page 37

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera 1.5 outdoor defrosting control 1.5.1 enter condition in heating mode, if the compressor has run for 10 minutes continuously and run for 45 minutes in all(clear the compressor accumulative operation time when defrost over o...

  • Page 38

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera and led1 are black out. 1.9 time shorting function time shorting function: if the time shorting port is in short circuit after electrifying cj601, the unit will perform a 1/60 time shorting control. 1.10 additional functio...

  • Page 39

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera the compressor will stop and alarm if current exceed 11a for 3 seconds contineously during compressor startup, the compressor can re-start up after 3 minutes. But the compressor will stop and alarm and confirm the failure ...

  • Page 40

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera normal control 11℃ slow rise fqy 1hz/10s 9℃ remaining 6℃ slow reduce fqy 1hz/10s 1.10.8 rated operation(the value can be setted by eeprom) ● rated cooling: when receiving the indoor rated operation command, the unit will e...

  • Page 41

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera trouble description display of led borad led 5-4-3-2-1 analyze and diagnose flash times of led on mainborad 01111 eeprom failure 01110 outdoor main board eeprom fail 14 ipm failure 00001 ipm failure 1 compressor u-phase ov...

  • Page 42

    High mid 3 1 mid low low high 2 0 Δt Δt 1.General features 1.1 control mode: remotr or wired control + connecting port of long-distance control + passive port switch control. 1.2 temperature control: 16-30℃ ; 1.3 precise of temperature control: ±1℃ ; 1.4 indoor fan speed: auto, high, middle, low (no...

  • Page 43

    Conditions, then perform the selected mode. Tr≥ts-3℃ select cool mode (includes fan mode) tr＜ts-3℃ select heat or fan mode 4.2 after entering the auto mode, the mode can change over among cool, heat or fan modes according to the indoor ambient temperature (conversion temperature difference is ±3℃). ...

  • Page 44

    Δ t＞2, the compressor and the outdoor motor will run continuously, indoor motor will run at the set speed, this area is defined as area a; 0≤Δt≤2, the compressor and the outdoor motor will always run for 10 minutes and then stop for 6 minutes, indoor motor will be low speed, this area is defined as ...

  • Page 45

    Alarm. 7.6 anti-cold air function in heating mode after entering heating mode, or last defrosting is over, the compressor will start up, if tg＜28℃, indoor motor will stop; if 38℃>tg≥28℃, indoor motor will run at low speed; if tg≥38℃ or the compressor has run for over 4 minutes, indoor motor will run...

  • Page 46

    When timer is over, the unit begins to run, and the timer led is off. The unit operation begins from receiving the timer signal for the last time. The sleep function only can be set before the timer on begins. Timer off: the unit running, the timer led on, while the timer is over, timer led off, the...

  • Page 47

    After compressor is running for 3 minutes, the unit will check the pipe pressure, when the pipe pressure is too low and low pressure switch is running for 30 senconds, compressor and outdoor fan motor will stop and will send failure 13. Trouble code the remote receiver, wired controller and indoor p...

  • Page 48

    ) discharge b (oil temp. Sensor-multi) circuit for more than 2m continuously resumable 21 20(32d) 07d module failure module overheat, overcurrent, short-circuit due to the signal, resumable 22 36(54d) 08d fault in zero-load current sensor failure or compressor is not started due to the signal, resum...

  • Page 49

    Commercial air conditioner circuit diagram of indoor unit 0010576546 (freeze) cn8 sw2 bl p13 (humi) (pump) (hea t) y (l) (fresh) p8 p9 p7 p12 p10 p11 (comm) w (n') (m) (h) sw3 p17 (l') p14 p15 sw5 sw4 p16 cn4 cn17 cn5 motor filter cn1 trans. Switch (door) (controller) (float) cn15 cn13 (up-down) (12...

  • Page 50

    Cn4 cn15 cn17 cn20 cn21 cn22 cn6 cn7 cn8 cn10 cn11 cn12 cn13 cn14 led1 led2 bm2 bm1 bm3 bm4 cn19 cn16 cn3 cn1 cn2 cn18 0010452325e for ab122acera commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera 50

  • Page 51

    Cn12 cn15 cn16 cn11 cn17 led1 cn14 cn13 cn20 sw3 sw2 cn21 sw5 sw4 cn19 cn7 led4 led5 cn5 cn4 p5 p7 p9 p6 p8 p10 p12 p11 p15 p14 p13 p17 cn1 p4 p3 p2 p1 p16 cn8 cn6 sw1 0010451690 e for ac122acera and ad122alera commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera 51.

  • Page 52

    Commercial air conditioner react or cap acit or board lx1 notes: 1.Dashed p ar ts are just can select one between this two f an mot or 2.P ar ts in dashed frames are optional 3. The led1-5 on led board are used for error alarm 4.Please do not press sw1-4 in dashed frame 5.Please do not chang the dip...

  • Page 53

    Commercial air conditioner model: au242agera ab242acera ac242acera ad242alera ad242amera p5 p1 cn16 cn1 cn2 cn19 cn20 cn18 cn17 cn24 led001 cn5 cn6 cn7 cn10 cn8 cn11 cn3 sw3 sw2 sw1 cn12 cn15 cn13 p7 p6 p8 p2 p3 p4 sw4 ou tdoor pcb 0151800037 53.

  • Page 54

    Commercial air conditioner 10.3 sensor characteristic model name code sub-part code characteristic outdoor ambient temp. Sensor 0010450192 001a3800082 r25=10k Ω±2.5% b25/50=4200k±3% compressor sunction sensor 001a3900062 / r25=10k Ω±3% b25/50=3700k±3% outdoor defrost sensor 0010450194 001a3800093 r2...

  • Page 55

    Commercial air conditioner t(℃) rnom(kΩ) t(℃) rnom(kΩ) -20℃ 90.79 24 10.43 68 2.09 -20℃ 281.34 24℃ 24.12 -19 85.72 25 10 69 2.03 -19℃ 263.56 25℃ 23 -18 80.96 26 9.59 70 1.96 -18℃ 247.04 26℃ 21.94 -17 76.51 27 9.21 71 1.9 -17℃ 231.66 27℃ 20.94 -16 72.33 28 8.84 72 1.85 -16℃ 217.35 28℃ 19.99 -15 68.41...

  • Page 56

    Commercial air conditioner t(℃) rnom(kΩ) -30 11600 13 933.4 56 127.3 -29 10860 14 886.4 57 122.1 -28 10170 15 841.9 58 117.2 -27 9529 16 800 59 112.5 -26 8932 17 760.8 60 108 -25 8375 18 722.8 61 103.8 -24 7856 19 687.3 62 99.68 -23 7372 20 653.8 -22 6920 21 622 -21 6498 22 592 -20 6104 23 553.6 -19...

  • Page 57

    11. Troubleshooting commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera yes if the refrigerant is normal improve the ventilation condition no no stop the unit, restart up until power module temperature has reduced yes if compressor wiring is correct yes if compressor windin...

  • Page 58

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera no yes alarm condition: outdoor dc motor is blocked rotor or broken, abnormal. Outdoor indicator led indicate dc motor abnormal 3) outdoor dc motor abnormal adjust fan blade to make it run normally adjust lead wire of fan ...

  • Page 59

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera if high pressure switch is normal check if the refrigerant is too much or less by the pressure gauge no no yes outdoor failure indicator indicate high pressure failure check if the wiring between indoor and outdoor is corr...

  • Page 60

    Commercial air conditioner model: au122aeera ab122acera ac122acera ad122alera measure actual pressure by a pressure gauge to adjust the output failure lack of refrigerant, charge additional refrigerant and check if piping leaks, if yes, replace piping check if high pressure is low,too yes check if p...

  • Page 61

    Commercial air conditioner 12. Noise level noise level-ad122alera 9 13 17 21 25 29 33 37 41 45 49 53 25 31. 5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 12500 160000 20000 third octave band frequency hz sound pressure level db heating ...

  • Page 62

    Commercial air conditioner noise level-au122aeera 7 11 15 19 23 27 31 35 39 43 47 51 55 59 63 67 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 12500 160000 20000 third octave band frequency hz sound pressure level db heating low h...

  • Page 63: Sincere Forever

    Commercial air conditioner sincere forever haier group haier industrial park, no.1, haier road 266101, qingdao, china http://www.Haier.Com model: au122aeera ab122acera ac122acera ad122alera.