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Haier AS072XVERA Service Manual

Manual is about: X MULTI SERIES

Summary of AS072XVERA

  • Page 1

    Commercial air conditioning service manual models as072xvera as092xvera as122xvera au182xfera au222xfera features high energy efficiency newly designed v-appearance for wall mounted unit, step or stepless air flow control new outdoor unit with valve cover plate, also the grille is changed from metal...

  • Page 2: Contents

    Commercial air conditioner model: au18/222xfera as072/092/122xvera contents contents……………………………………………………….. ..2 1. Description of products & features……………………….. .3 2. Specification………………………………………………… .6 3. Safety precaution…………………………………………… 10 4. Net dimension of indoor and outdoor…………………….. 12 5. I...

  • Page 3

    Commercial air conditioner model: au18 /222xfera as072/092/122xvera 1.Description of products & features 1.1. Products code explanation a u 18 2 x f e r a climate type: t1 (see table 1) design number (r stands for design sequence, dc inverter type) product type: a stands for heat pump type, refriger...

  • Page 4

    Commercial air conditioner model: au18 /222xfera as072/092/122xvera 1.4 product features high efficienct, universal outdoor unit the outdoor unit can match with wall mounted type, duct and cassette type indoor unit. One set outdoor can match with multiple indoor units, up to 3 sets. Even when you ha...

  • Page 5

    Auto–restart function (optional) all indoor units have auto-restart function. When the power supply cut off suddenly, the unit will automatically recover the previous running mode once the power supply is on. Self-diagnostic function in the course of operation, if the failure occurs, the failure cod...

  • Page 6

    2. Specification -6- —— cooling heating w 5300 7000 w 1650 1800 w/w 3.21 3.88 w 1500 1800 w 500 500 w 5800 7400 w 2300 2300 —— a / a 10.2 10.2 —— 99% 99% a model / manufacture —— oil charge and type —— type —— number —— type × number —— speed r/min motor output power w air-flows (h/m/l) m³/h type / ...

  • Page 7

    —— cooling heating w 6400 7300 w 2100 2000 a 9.3 8.9 w/w 3.04 3.65 w 1500 1800 w 500 500 w 6800 7500 w 2900 2900 —— a / a 12.9 12.9 —— 99% 99% a model / manufacture —— oil charge and type —— type —— number —— type × number —— speed r/min motor output power w air-flows (h/m/l) m³/h type / diameter mm...

  • Page 8

    -8- —— cooling heating cooling heating btu/h 7000 8000 9000 10000 w 2000 2300 2500 2900 —— —— 10‐³×m³/h 1.0 / 1.0 / n, v, hz a / a 0.15 0.15 0.15 0.15 type × number —— speed r/min motor output power w air-flows (h/m/l) m³/h type / diameter mm total area m² external mm package mm drainage pipe materi...

  • Page 9

    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 measured in the third octave band limited values, using a real time analyser calibrated sound...

  • Page 10

    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 cause serious conseque...

  • Page 11

    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- nected to the gas pipe, water ...

  • Page 12

    4. Net dimension of indoor and outdoor au18/222xfera: 870 305 225 wall mounted unit: -12- 18 commercial air conditioner model: au18 /222xfera as072/092/122xvera.

  • Page 13

    5. Installation instructions ■ 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 oil (sontex 200lt) synthetic oil (poe oil) syntheti...

  • Page 14

    ■ 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 regulations when installing the r...

  • Page 15

    -15- commercial air conditioner model: au18 /222xfera as072/092/122xvera 4. The wiring method should be in line with the local wiring standard. 5. The power cable and connecting cable are self- provided. The requirement of the power cable to the outdoor unit: h05rn-f 3g 4.0mm 2 all the cables shall ...

  • Page 16

    (c) where there is strong radiation. It will affect the unit's control system, causing malfunction of the unit. (d) where there are flammable gas, dirt, and volatile matter (thinner, gasoline) exist, these items will cause a fire risk. All units shall be earthed. The earth must not be connected to a...

  • Page 17

    The following accessories are supplied together with the outdoor unit. Place, robust not causing vibration, where the body can be supported sufficiently. Place, not affected by heat or steam generated in the vicinity, where inlet and outlet of the unit are not disturbed. Place, possible to drain eas...

  • Page 18

    1. Do not connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in ordor to add another indoor unit later. Make sure that no dirt or mositure gets into eigher side of the embedded branch piping. 2.It is impossible to connect the...

  • Page 19

    Commercial air conditioner model: au18 /222xfera as072/092/122xvera -19- before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponded nameplate. Install an exclusive branch circuit of the power. A receptacle shall be set up in a distan...

  • Page 20

    2. Connection of pipe apply refrigerant oil on half union and flare nut. To bend a pipe, give the roundness as large as possible not to crush the pipe. Connecting the pipe of gas side firstly makes working easier. Refrigerant piping work l1 l2 l3 h h + a b c h - the piping length information, please...

  • Page 21

    -21- 4.Cutting and flaring work of piping pipe cutting is carried out with a pipe cutter and burs must be removed. After inserting the flare nut, flaring work is carried out. Forced fastening without careful centering may damage the threads and cause a leakage of gas. Pipe diameter ( ) fastening tor...

  • Page 22

    In case of gas leakage, tighten parts of pipe connection. If leakage stops, then proceed 6 steps. Purging method: to use vacuum pump 2 way valve 3 way valve 90 0 service port 90 0 for 6 sec. 6 .Detach the charge hose from the service port, open 2-way valve and 3-way. Turn the valve rod anticlockwise...

  • Page 23

    1. Electric wiring note: the air conditioner must use special circuit , and wiring by the qualified electrician according to the wiring rules specified in national standard. The grounding wire and the neutral wire shall be strictly separated. Connect the neutral wire with grounding wire is incorrect...

  • Page 24

    3. Wiring method of outdoor unit: loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly. Note: when connecting power line to power supply terminal, please pay attention to the following items: do not connect the power line with different d...

  • Page 25

    5. Example wiring diagram please refer to the indoor unit installation manual to find detailly how to set and check the communication address. Incorrect address setting will cause abnormal to the system. Test running before starting the test running, please confirm the following works have been done...

  • Page 26

    Items to confirm test running. 1) if the temperature is lower than 16 c, it is impossible to test cooling with remote controller, and also when the temperature is higher than 30 c, it is impossible to test heating. 2) to test cooling, set the lowest temperature at 16 c. To test heating,set the highe...

  • Page 27

    Indoor unit installation 4. The wiring method should be in line with the local wiring standard. 5. The power cable and connecting cable are self- provided. The requirement of the connecting cable: all the cables shall have got the local authentication certificate. 6. The breaker of the air condition...

  • Page 28

    Warning! Carefully read the following information in order to operate the air conditioner correctly. Below are listed three kinds of safety cautions and suggestions. Instructions: these information can ensure the correct operation of the machine. Be sure to conform with the following important safet...

  • Page 29

    Don't dismantle the outlet of the outdoor unit. The exposure of fan is very dangerous which may harm human be- ings. When air-conditioner is co-used with other heat-radiator the frequent replacement of room atmosphere should be required. Inefficient venti- lation may cause suffocation. After a long ...

  • Page 30

    [location] [wiring] [operating noise] air-conditioner should be located in well- vented and easily-accessible place. Air-conditioner should not be located in the following places: (a) places with machine oils or other oil vapours. (b) seaside with high salt content in the air. (c) near to hot spring...

  • Page 31

    2. Emergency and test operation use this operation only when the remote controller is defective or lost. When the emergency operation switch is pressed "pi" sound is heard once, which means the start of this operation. In this operation,the system automatically selects the operation modes, cooling o...

  • Page 32

    6. Method for cutting and expanding pipes. Correct not correct cracks on expanded mouth burr incomplete too long tilting 7. When the mounting plate is first fixed 1. Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be fixed against the wall, then temporarily...

  • Page 33

    Heat insulation material drain hose piping indoor/outdoor electric cable signal wire change-for-fresh-air tube indoor/outdoor electric cord and drain hose must be bound with refrigerant piping by protecting tape 9. Indoor unit communication addresses setting lid for right piping lid for under piping...

  • Page 34

    I. If you want to change the address, please repeat the above steps from e to g. J. After setting all the addresses, please power off the system and then power on again. Otherwise the system will not start to work. K. Once the addresses are successfully set, please do not change it any more to avoid...

  • Page 35

    10.2 trial operation the person who has completed this installation shall be requested to conduct a test operation for check: is the temperature adjuster working normally? Does the location for installation conform to requirements? Winding up with protective plastic tape.The connection pipes,drain p...

  • Page 36

    .4=96:18 28;37 06=4 3;?4= + 06=4 3;?4= , /18?4 3;?4= .; ->; +6= 6:84> 5=6884 commercial air conditioner model: au18 /222xfera as072/092/122xvera 6. Parts and functions front panel air inlet grille air inlet grille louver display board -36-.

  • Page 37

    Commercial air conditioner model: au18 /222xfera as072/092/122xvera mode clock used to set correct time. Timer light used to set temp.,temp. Range:16 c~30 c sleep used to select sleep mode hour used to set clock and timer setting. Reset used to reset the controller back to normal condition. Lock use...

  • Page 38

    2r-03 dry batteries min ute s confirmation indicator: in disorderation, reload the batteries or load the new batteries after 5 mins. Note:the waster batteries should be disposed properly,use two new same-type batteries when loading. If the remote controller can’t function normally or doesn’t work at...

  • Page 39

    Cooling operation press on/off button unit starts running. The previous status appears on the display(except. Timer, sleep mode) press mode button. For each press, operation mode changes as follows: select temp. Button press temp button every time the button is pressed, temp. Setting increases 1 c e...

  • Page 40

    A press on/off button unit stops running, and when entering this mode for the next time, it will show the previous setting unit runs at the speed displayed on lcd. In dry mode, when room temp.Becomes 2 c lower than temp. Setting,unit will run intermittently at low speed regardless of fan setting. 5 ...

  • Page 41

    Air flow adjustment a swing louvers (vertical louvers) up and down side from side on off temp health fan mode sleep swing clock timer set lock light reset (horizontal louvers) 2 sterilize health airflow fresh code 1 position 1 position 2 position 3 position 4 position 5 position 6 position 7 positio...

  • Page 42

    Put louvers at up position in cooling and down position in heating mode. This will be helpful to keep an even room temp. Note: in cooling or dry operation, don't put horizontal louvers at downward position for a long time, or outlet grill might get frosted. Don't expose your skin to cool or warm air...

  • Page 43

    A on off temp health fan mode sleep swing clock timer set lock light reset sterilize health airflow fresh code raise 1 c drop for 2 c drop for 2 c about 3 hours the sleep running starts the sleep running stops set the temperature close down the machine in heating 1 hour 1 hour 3 hours timer on/off o...

  • Page 44

    To cancel timer mode just press timer button several times until timer mode disappears. Hints after replacing batteries or a power failure happens, time setting should be reset. Remote controller possesses memory function when use timer mode next time, just press set button after mode selecting if t...

  • Page 45

    8. Refrigerant diagram to c i ta ia ta ib ta ic tm a tm b tm c tc 2c tc 2b tc 2a tc te tao ts td c ap illa r y accum ul at o r 4- w ay val ve wa y- c wa y- b wa y- a pm v- c pm v- b pm v- a str ai n er mu ff le r h eate r co m pre ss o r lp s w it c h hp s w it c h tc 1 c tc 1 d tc 1c -45- commercia...

  • Page 46

    Main p art explanation: no . M ai n p a rt nam e s p eci fi cati o n f o r w h at p u rp o se? 1 h ea te r 220v , 35w heat up t he c om pres so r w hen s ys tem s tops to av oi d l iqui d c om pres si ng and li qui d f lood-bac k 2 c om pres so r dc in ve rt er dri ve t he s ys tem to real iz e t he...

  • Page 47

    9. Electrical control functions 3.1 refrigerant diagram outdoor electric control functions: -47- 1. Switch setting and functions: no item a8 set in factory switch function: sw5-1---outdoor fan motor selection, on: dc fan motor; off: ac fan motor c1 switch function: sw5-2---defrosting data setting, o...

  • Page 48

    T d ts tao tc te tmc tinc taic toci touc tinb tmb taib toub tina tma taia toua hpsw l ps w 3.2 outdoor frequency control 3.2.1 compressor running frequency range: 20~90rps 3.2.2 defination of high-efficiency operation and its frequency control in order to meet the cooling request at high ambient tem...

  • Page 49

    -5degree/30seconds, and reduce to 0 degree gradually heating mode indoor modification angle 100℃ +50degree/30seconds, it will stop until up to the max. Permitted opening angle 90℃ keep the angle -5degree/30seconds, and reduce to 0 degree gradually 3.4 4-way valve control in heating protection when 4...

  • Page 50

    Te≤c×ta－α herein: c：ta＜0℃，c=0.8 ta≥0℃，c=0.6 according to sw2, the setting is as follow: in the place easy to frost, it is h; when out of factory, it is m. Jumper selection m(out of factory) h α (℃) 8(e) 6(e) ② defrosting entering condition: -15℃≤c×ta－α≤-2℃ ③ stop and pause condition of compressor ru...

  • Page 51

    3.7.4 defrosting operation flow chart beginning end fixed frequency indicated fqy 60s defrosting fqy 80 hz（e） 60s soft startup compressor 0hz 0hz 5s outdoor motor on send defrosting signal to indoor auto off 4-way valve on off 15s on spray valve sv2 off 450-pulse 450-pulse 350-pulse(e) all eevs auto...

  • Page 52

    3.8 frequency control when td is too high purpose: make compressor frequency control if the discharging temp. Is too high, to lower the discharging temp. Efficiently and ensure the system can run normally. 3.9 frequency control when there is ct over current protection 1.0 i 0.95i 0.93i 0.90i 0.88i 0...

  • Page 53

    3.10 high pressure protection when the input signal of pressure switch is high level:1, that shows there is no protection. When the input signal of pressure switch is low level: 0 for 1 minute, that shows high pressure protection works. At this time, compressor stops, outdoor will send the alarm sig...

  • Page 54

    In cooling, confirm through tc2ave: in heating, confirm through defrosting temp. Te: if the failure is not confirmed as the permanent protection, outdoor will not send failure code to indoor, and indoor will not alarm. T ina ve -25℃ -30℃ -35℃ -40℃ -45℃ normal operation min. Running fqy 20hz sv2 off ...

  • Page 55

    Indoor electric control functions: note: the following functions are applicable for the unit in normal state. 1. Parameter input: 1.1 analog data input: 1.1.1 indoor temperature sensor input (ta): 1-way, 23kΩ at 25℃ 1.1.2 indoor coil outlet temp/inlet temp (tc1: gas pipe, tc2: liquid pipe): 2-way, 1...

  • Page 56

    Note: the above dip switches are correlative to the system security, so please confirm the conformity between the unit and the dip switch. The incorrect dip switch setting will result in the system wrong operation or the wrong failure diagnosis. 2. Cooling operation 2.1 the set temperature in coolin...

  • Page 57

    In defrosting period, indoor fan motor will stop running; in heating mode, if unit shutoff, indoor fan motor will stop after running for 30 seconds at super low speed. Note: the above temp. Point has taken fuzzy control, and has tolerance ±2℃ according to the different state. 10. Fan motor control i...

  • Page 58

    Press on/off button (from off mode to on mode), the times of sleep button to be pressed is the set unit number, then press on/off button to quit unit number setting state, at this time, indoor unit is at off state, the display panel will display this unit number. For example, press sleep button once...

  • Page 59

    10. Diagnostic information and troubleshooting indoor failure code note: 1. Please contact the installers or distributors when trouble happens. 2. Turn the power off and power on again, if the failure code recurs, please change the indoor unit pcb. 3. Failrue codes maked with* are resumable. Trouble...

  • Page 60

    Failure code state of led 5-4-3-2-1 trouble shooting possible reasons 1 faulty defrost sensor te sensor disconnected, or broken, or short circuit faulty sensor tao sensor disconnected, or broken, or short circuit faulty sensor ts sensor disconnected, or broken, or short circuit faulty sensor td sens...

  • Page 61

    Troubleshooting: replace the fuse and check again replace power wiring and check again display panel circuit is damaged, replace it pcb is faulty, replace check if fuse is burnt yes yes yes check if power wiring is in open circuit no no no check if display panel is 12v power supply pcb is faulty, re...

  • Page 62

    Adjust the distance and check again replace the communication connection wire, check again pcb is faulty, replace and check again if the power cable and the communication wire are too close, resulting in the wrong commission data check if the communication port connecting to the indoor/outdoor pcb i...

  • Page 63

    Trouble 9: ac current over current protection or current transducer damaged, or compressor blocked rotor, compressor great vibration, compressor abnormal startup, state detecting curcuit abnormal or compressor damaged. Yes pcb is faulty and repalce it, check again replace sensor and check again repl...

  • Page 64

    Replace indoor motor and check again check if the indoor motor has power input replace pressure switch connector, shut off and be electrified again, re-check replace pressure switch connector, shut off and be electrified again, re-check yes yes yes replace main control board and check again if indoo...

  • Page 65

    11. Electric data 11.1 wiring diagram outdoor unit wiring diagram piping temper- ature sensor ambient temperature sensor swing motor cn18 cn19 sw03 cn16 sw02 sw01 cn8 swing motor swing motor cn22 cn21 swing motor cn23 ac fan motor m ¡« b: black br: brown r: red w : white y/g : yellow/green bl:blue y...

  • Page 66

    11.2 circuit diagram outdoor circuit diagram: -66- commercial air conditioner model: au18 /222xfera as072/092/122xvera.

  • Page 67

    Indoor circuit diagram: -67- commercial air conditioner model: au18 /222xfera as072/092/122xvera.

  • Page 68

    11.3 sensor part number and their resistor value model name code sub-part code characteristic suction temp. Sensor 0010451513 001a3900059 1.R25=10kΩ±3% b25/50=3700k±3% 2.R25=23kΩ±2.5% b25/50=4200k±3% coil temp. Sensor 001a3900059 1.R25=10kΩ±3% b25/50=3700k±3% 2.R25=23kΩ±2.5% b25/50=4200k±4% liquid p...

  • Page 69

    T(℃) rnom(kΩ) t(℃) rnom(kΩ) t(℃) rnom(kΩ) t(℃) rnom(kΩ) -30 11600 24 536.6 -20℃ 90.79 34 6.95 -29 10860 25 511.1 -19 85.72 35 6.68 -28 10170 26 486.9 -18 80.96 36 5.43 -27 9529 27 464 -17 76.51 37 5.6 -26 8932 28 442.3 -16 72.33 38 5.59 -25 8375 29 421.7 -15 68.41 39 5.73 -24 7856 30 402.1 -14 64.73...

  • Page 70

    T(℃) rnom(kΩ) t(℃) rnom(kΩ) -20℃ 281.34 22℃ 26.54 -19℃ 263.56 23℃ 25.3 -18℃ 247.04 24℃ 24.12 -17℃ 231.66 25℃ 23 -16℃ 217.35 26℃ 21.94 -15℃ 204.02 27℃ 20.94 -14℃ 191.61 28℃ 19.99 -13℃ 180.04 29℃ 19.09 -12℃ 169.24 30℃ 18.23 -11℃ 159.17 31℃ 17.42 -10℃ 149.77 32℃ 16.65 -9℃ 140.99 33℃ 15.92 -8℃ 132.78 34...

  • Page 71

    1 2. Performance curves the data in the curves are measured with three indoor unit as07+as09+as12 and au182. Heating capacity curves 4000 5000 6000 7000 8000 9000 10000 16/10 18/12 20/14.5 21/15 22/16 24/17 26/18 indoor wb/db heating capacity (w) -6/-7 -4/-5 -1/-2 1/0 6/5 7/6 12/10 16/15 power input...

  • Page 72

    Cooling capacity curves 2000 3000 4000 5000 6000 7000 8000 18/12 20/14 22/16 25/18 27/19 30/22 32/24 indoor db/wb cooling capacity (w) -5 20 25 32 35 40 power input curves in cooling mode 0 500 1000 1500 2000 2500 3000 18/12 20/14 22/16 25/18 27/19 30/22 32/24 indoor db/wb power input (w) -5 20 25 3...

  • Page 73

    -73- commercial air conditioner model: au18 /222xfera as072/092/122xvera eer (w/w) unit a unit b unit c unit d min. Data rated data max. Data min. Data rated data max. Data min. Data rated data max. Data rated capacity 07+12 cooling and heating 2.0 3.2 — — 1.00 5.20 5.80 0.47 1.75 2.30 2.15 7.80 10....

  • Page 74

    -74- commercial air conditioner model: au18 /222xfera as072/092/122xvera eer (w/w) unit a unit b unit c unit d min. Data rated data max. Data min. Data rated data max. Data min. Data rated data max. Data rated capacity 07+12 cooling and heating 2.30 3.80 — — 1.20 6.10 6.50 0.55 1.90 2.30 2.50 8.43 1...

  • Page 75

    1 3. Noise level 1/3 octave band noise level-au182xfera 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 25. 0 31. 5 40. 0 50. 0 63. 0 80. 0 100 .0 125 .0 160 .0 200 .0 250 .0 315 .0 400 .0 500 .0 630 .0 800 .0 100 0. 0 125 0. 0 160 0. 0 200 0. 0 250 0. 0 315 0. 0 400 0. 0 50...

  • Page 76

    1/3 octave band noise level-au182xfera 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 25. 0 31. 5 40. 0 50. 0 63. 0 80. 0 100 .0 125 .0 160 .0 200 .0 250 .0 315 .0 400 .0 500 .0 630 .0 800 .0 100 0. 0 125 0. 0 160 0. 0 200 0. 0 250 0. 0 315 0. 0 400 0. 0 500 0. 0 630 0. 0 8...

  • Page 77

    1/3 octave band noise level-au182xfera 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 25. 0 31. 5 40. 0 50. 0 63. 0 80. 0 100 .0 125 .0 160 .0 200 .0 250 .0 315 .0 400 .0 500 .0 630 .0 800 .0 100 0. 0 125 0. 0 160 0. 0 200 0. 0 250 0. 0 315 0. 0 400 0. 0 500 0. 0 630 0. 0 800 0. 0 10...

  • Page 78

    1 4. Air velocity and distribution m fig 1 top view flow control panel horizal lourer:center fig 3 top view flow control panel horizontal lourer:center 0.25 0.5 1.0 2.0 fig 4 top view flow control panel vertical lourer:center condition fan speed:high operation mode:fan voltage:230v,50hz fig 2 top vi...

  • Page 79: Sincere Forever

    Commercial air conditioner model: au182xfera as072/092/122xvera sincere forever haier group haier industrial park, no.1, haier road 266101, qingdao, china http://www.Haier.Com.