Haier AB122ACERA Service Manual Download

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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 function

Weekly timer (standard)

Group control function

Auto restart function

Room card function

AB122ACERA

AC122ACERA

AD122ALERA

AU122AEERA

Can be connected with the universal outdoor unit AU122AEERA

Manual code:

SYJS-020-07REV.

Edition: 2007-05-

Summary of Contents for AB122ACERA

Page 1: ...ambient heating kit optional New friendly refrigerant R410a environment protection Advanced technology DC inverter control function Weekly timer standard Group control function Auto restart function Room card function AB122ACERA AC122ACERA AD122ALERA AU122AEERA Can be connected with the universal outdoor unit AU122AEERA Manual code SYJS 020 07REV 0 Edition 2007 05 15 ...

Page 2: ...ioner Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 3 Safety precaution 10 4 Net dimension 12 5 Installation instructions 14 6 Parts and functions 30 7 Controller functions 32 8 Refrigerant circuit 33 9 Electrical control functions 34 10 Electrical data 49 11 Troubleshooting 57 12 Noise level 61 ...

Page 3: ...ds for cassette type C stands for convertible type D stands for duct S stands for wall mounted type Q stands for chiller system E stands for ceiling concealed type U stands for outdoor unit Air Conditioner 1 2 Brief Introduction for T1 T2 T3 working condition 1 3 Operating Range of Air Conditioners Temp Mode Rated Maximum Minimum DB 27 32 15 Indoor WB 19 23 14 DB 35 43 5 Cooling Outdoor WB 24 26 6...

Page 4: ...on 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 Low temperature cooling realized super low temperature heating realized Low ambient cooling kit optional Group control function with a group controller YR E12 Central control function if connected with a central con...

Page 5: ... to the set pressure 2 24 hours later check if the pressure in the pipe has reduced 1 Do not connect the power supply 1 Use piping material of the specified thickness 2 Do not use dirty pipe 3 Always flow nitrogen during welding work hand over trial running and adjustment maintenance panel installation gas leakage check additional refrigerant charging evacuation and drying leakage test refrigerant...

Page 6: ...ge manifold Charging hose Vacuum evacuation and refrigerant charging operation check Air tightness test Refrigerant additional charging Vacuum pump with adapter Vacuum drying Electronic scale Gas leakage detector Gas leakage test Refrigerant additional charging Work precautions Refrigerant check Before work check the used refrigerant and prepare materials matched to the refrigerant Refrigerant pip...

Page 7: ... A 8A 6 0 1 4 8 0 A 8A Start Current A 3 3 Circuit breaker A 13 13 Unit model color Type Number Speed H M L r min Fan motor output power kW Air flow H M L m h Type Diameter mm Total Area m Temp scope External L W H mm mm mm Package L W H mm mm mm Drainage pipe material I D O D mm Control type Remote wired dB A kg kg item Mode AB122ACERA Total power input Max power input ENERGY CLASS 1 5 3 2 5 1 22...

Page 8: ... Connecting Method m m Item Model AD122ALERA Total power input Max power input 1 6 3 2 5 1 220 230 50 Running Indoor unit AD122ALERA GREY Fan Centrifugal fan 1 1000 900 800 50 0 05 550 450 400 Heat exchanger inner grooved pipe φ7 0 11 2 7 Dimension 610 483 220 695 536 265 20 18 wired Noise level H M L 35 32 30 Weight Net Shipping 14 16 Item Mode AU122AEERA 3 2 5 1 220 230 50 3 Outdoor unit AU122AE...

Page 9: ...ormation duct unit without auxiliary duct duct unit with auxiliary duct outdoor unit 1 air outlet from side the noise level is the average sound pressure level measured from front left right directions 2 air outlet from top the noise level is the average sound pressure level measured from front back left right directions measured point H height to the ground h unit height 1m 2 and it is 1m to each...

Page 10: ...user this manual should be as well transferred to the new user WARNING If any abnormal phenomena is found e g smell of firing please cut off the power supply immediately and contact the dealer to find out the handling method Don t dismantle the outlet of the outdoor unit The exposed fan is very dangerous which may harm human beings switch off In such case to continue using the conditioner will dam...

Page 11: ...installation may cause water leak electrical shock and fire hazard Call the dealer to take measures to prevent the refrigerant from leaking If conditioner is installed in a small room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage When conditioner is removed or Incorrect installation may cause water leaking electrical shock and fire hazar...

Page 12: ... UVMTQTO LQSMTYQUT8 99SS 7VITMR LQSMTYQUT8 9SS 7QTLUUX TQZ LQSMTYQUT8 9SS 7KMQRQTO UVMTQTO LQSMTYQUT8 99SS 7VITMR LQSMTYQUT8 GFEH D B 9 A9 NXMYP IQX PURM Y YVMTYQUT PURLMX 9SS 9SS 9SS U MXRIVML LQYZITKM JMZ MMT ZPM KMQRQTO ITL ZPM VITMRC SS KMQRQTO VITMR 240 100 900 990 655 200 880 620 605 600 40 35 35 30 199 4 2 AC122ACERA Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 12 ...

Page 13: ...cial 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 7 B 9 6AF B 8 B 4 CDB ED A 5A 0 23 1 0 245 4 4 AU122AEERA 13 ...

Page 14: ... disturb the neighborhood Place where there is not heavy snowfall in the winter time Place where obstacles do not exist near the air inlet and air outlet Place where the air outlet may not be exposed to a strong wind Place surrounded at four sides are not suitable for installation A 1m or more of overhead space is needed for the unit Mount guide louvers to place where short circuit is a possibilit...

Page 15: ...122AEERA AB122ACERA AC122ACERA AD122ALERA 15 Installation 9 9 7 r 53D9 d s9 5 C9 6 3 53D9 7 9 5 u 1B5 3 53D9 v1C 9 5 e G1I F1 F5 x 4 B 9D ED4 B E 9D z9AE94 9 5 f G1I F1 F5 u 1B5 3 53D9 deaj iafh v1C 9 5 z9AE94 9 5 e 85 1H9 E 5 7D8 1 4 4B 85978D 6 3 53D9 7 9 5 85 1H9 E 5 7D8 9C ec 85 1H9 E 4B 85978D 9C 5 CEB5 D85 5669395 3I _ 9 5C C81 25 1C C8 BD 1C CC92 5a u9D D85 ED 1 4 61CD5 90 0 5 15m 1 5B 1 5B...

Page 16: ...Commercial Air Conditioner Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 2 16 ...

Page 17: ...tor only Select wire sizes and circuit protection from table below This table shows 20 m length wires with less than 2 voltage drop WARNING 30mA Item Model PhaseSwitch breaker A Circuit breaker Overcurrent protector Power source wire size 1 40 2 Switch break Earth leakage breaker Leak curren 2 Wiring connection Make wiring to supply power to the outdoor unit so that the power for the indoor unit i...

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Page 19: ...cm ncfncha a chmn nb_ cl_ ncih i q n_l l ch a_0jli f_g g s i ol ih fi ncha q n_l f_ e a_2 Jh nb_ m_ i _cfcha fl_ s _rcmnm 5 Jhmn ff ohcn n_gjil ffs 6 B domn nb_ b_cabn h jimcncih i nb_ ohcn2 7 Pli __ qcnb jli _ ol_ 8 i Jh nb_ m_ i hi _cfcha Non Pl_j l_ ch _cf W mb_l Pl_j l_ ch _cf Somj_h cha ifnm G mn_h io f_ honm Jhm_ln W mb_l crcha j jl_j l_ ch _cf X m_ ol_ nb_ q mb_l clgfsY f_p_f_l Pifsnb_h_ jc...

Page 20: ...ge hose shall be within 75mm make the drainage plug not to bear excessive force If several water hoses join together of as per following procedures Specifications of the selected drainage hoses shall meet the requirements for the unit running 6 Installation of Ornament Panel Install ornament panel on indoor unit 1 Check whether indoor unit is horizontal with leveler or polythene pipe filled with w...

Page 21: ...A 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 connected Electric control box 21 ...

Page 22: ... Be sure to arrange the drain hose correctly as shown in Fig 7 so that it is lower than the drain hose connecting point of the indoor unit if condensate pump is not fitted to system B UNDER CEILING MOUNTING Using the installation template drill holes for piping and anchor bolts for holes Fig 9 1 DRILLING FOR PIPING Select piping and drain directions Fig 10 Fig 10 Fig 6 Drain pan Drain hose Insulat...

Page 23: ...4 Apply the indoor unit to the brackets Fig 15 Now securely tighten the hex bolts in both sides 5 INSTALL THE DRAIN HOSE The drain hose will be connected to the right side Fig 3 Insert the drain hose into the drain pan then secure the drain hose with a nylon fastener Fig 5 Wrap the insulation drain hose around the drain hose connection Fig 9 Be sure to arrange the drain hose correctly so that it i...

Page 24: ...Fig 27 Electrical component box Fig 28 Base Electrical component box cover CAUTION Be careful not to pinch the wiring between the electric component box and base 1 Ensure all wiring complies with current regulations 2 It is recommended that a MCB of the correct rating is used to protect the system 3 Always use a circuit breaker that can trip all the poles of the wiring is fitted and has an isolati...

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Page 26: ... f X ghf VihUfm f fYhifb XiWh f fYhifb V bX PigdYbX b cc_ BfU b d dY QfUbg h cb XiWh f cih XiWh Q Y g_YhW aUd cZ cb XiWh Q Y1 b cZ U f X ghf VihUfm KchY T Yb WcbbYWh b h Y cb XiWhg0 igY h Y a XX Y ghUh W hYfa bU g0 k W Wc cf g fYX2 J k XY YldUbg cb Vc h J gigdYbXYf gWfYk J k XY cW_ kUg Yf J gWfYk bih f WcbX h cbYf Q Y X ghUbWY I Zfca h Y U f cih Yh cZ h Y XiWh hc h Y U f cih Yh cZ h Y g f WcbX h c...

Page 27: ...bg cb gWfYk RgY J cf J54 gigdYbg cb gWfYkg 80dfYdUfYX b h Y Z Y X k Yb h Y gigdYbg cb gWfYk Y h YlWYYXg 42 a0 J54 g nY g h Y cb m W c WY 2Q YgY gWfYkg g U VY bghU YX Ug Zc ckg k h gdUWY UXUdh b hc U f WcbX h cbYf cjYfU X aYbg cbg UWWcfX b hc h Y cf bU Vi X b ghfiWhifYg2 TccXYb ghfiWhifY geiUfY kccX g U VY giddcfhYX Vm h Y VYUag UbX h Yb gYh h Y gigdYbg cb gWfYkg2 KYk WcbWfYhY g UV Qc gYh k h YaVYX...

Page 28: ... h Y XfU b d dY WcbbYWh cb dUfh2 M dY UbX bgi Uh cb aUhYf U O X MSA d dY SM7529aa bhYfbU X UaYhYf DcUaYX MC k h h W_bYgg UVcjY aa M dY Gbgi Uh cb FcgY BfU b d dY g nY 738 MSA d dY Q Y cgY g igYX Zcf UX igh b h Y cZZ1WYbhYf UbX Ub Y cZ h Y f X MSA d dY2 B fYWh m ghfYhW h Y cgY hc bghU k h cih aU_ b Ubm XYZcfaUh cb2 Q Y gcZh YbX cZ h Y cgY aigh VY ZUghYbYX k h U cgY W Uad2 M YUgY Udd m h Y cgY cb cf...

Page 29: ...bh cb Vch h Y Ug g XY UbX ei X g XY cZ d dYg fYgdYWh jY m2 Bif b Wcc b cdYfUh cb0Vch h Y ei X UbX Ug g XYg UfY Wc X UbX h ig g U VY bgi UhYX gc Ug hc Ujc X XYk YbYfUh cb2 Q Y bgi Uh b aUhYf U Uh Ug g XY g U VY fYg ghUbh hc U hYadYfUhifY UVcjY 564 XY fYY2 Q Y bXccf ib h d dY WcbbYWh cb dUfh g U VY bgi UhYX2 Q Y bchW idkUfX hhUW YX XYhU j Yk GbXccf ib h PiVg X Ufm bgi Uh cb hiVY D Y X d d b g XY 8 J...

Page 30: ... Air Direction Flaps 11 RIGHT LEFT Air Direction Louvers behind UP DOWN Air Direction Flaps 3 9 8 Fig 1 11 10 5 6 1 AB122ACERA 6 2 AC122ALERA F_RWP UX NZ 9RZ OUX_ MRZNL RXW LJW KN JMS NM K RWP QN FI B K XW XW QN ZNVX N LXW ZXUUNZ 9RZ WUN ZRUUN 9RZ RU NZ W RMN XO QN WUN ZRUUN CYNZJ RWP XW ZXU DJWNU ENVX N ZNLNR NZ XVYZN XZ JVY G A E JVY CD E9G CB JVY DX_NZ JVY VNZPNWL _R LQ a b c d e CAD G A E CD E...

Page 31: ... 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: ...A4 2 29 A8 4 4A 42 C4 F 27429 58 A4 4 4A 34 50 0BA 0BA 50 F 2 3 F 740A A4 7867 43 D 58E 24 A 0 4 0A8 A0 31F 4 740A 345 A 58 A4 740 A7 27429 D8 6 B 8A 34 0 3 0 B0 24 033 F 033 A4 4A A4 A8 4 2 29 B 3 D C4 A8 0A8 55 308 F 0BA 42 C4 F 0 55 Mg_jZj hgljhee j YS LB Wired controller YR E12 Commercial Air Conditioner Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 32 ...

Page 33: ...st temp sensor Te condenser 4 way valve check valve high pressure switch discharge temp sensor Td check valve 2 way stop valve liquid side evaporator indoor coil temp sensor Tc 3 way stop valve air side compressor muffle low pressure switch outdoor ambient temp sensor Tao indoor ambient temp sensor Tai Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 33 ...

Page 34: ...ure is not available 1 2 3 Heating mode cooling mode After performing the compressor startup procedure the unit will run according to the indoor frequency 2 minutes later the unit will compensate the running frequency due to the relative condition 1 2 4 Compressor frequency rising reducing speed Rapid rising reducing frequency speed 1 1Hz second Slow rising reducing frequency speed 2 1Hz 10 second...

Page 35: ...on the outdoor small indicate board ON means DC motor OFF means inverter motor Blowing remain heat function In cooling mode when compressor shuts off outdoor motor will run in low speed and will shut off after 30 seconds Fan speed chart in 3 minutes after compressor starts up Ambient temp 15 15 25 25 Cool Low speed High speed High speed Ambient temp 10 10 20 20 heat High speed High speed Low speed...

Page 36: ...180 220 240 230 260 1 3 3 Confirmation of over heat degree Standarded over heat degree Actual running Hz 20 30 40 50 60 70 80 90 90 Cool dry 2 2 1 1 1 1 1 2 2 TXRH0 heat 2 2 1 1 1 1 1 1 1 When discharging temp Td is too high or too low modify the EEV angle Mode Modification angle Max modification Cooling Ttc 100 standarded over heat degree 1 degree 2 minutes 90 Ttc 100 keep the angle Ttc 90 1 degr...

Page 37: ...tection or failure in defrost mode resume after stopping for 3 minutes accumulative operation time will not be cancelled Enter defrost when the continuous operation time is met When enter defrost quit defrost only when 2 minutes of the compressor min operation time is met 1 5 4 Quit condition When any of the following condition is met change defrost to heating mode 1 Outdoor heat exchanger temp ov...

Page 38: ... compressor has started up for 4 minutes If Ttc 115 keeping for 10s the discharge temp over heat protection excutes and unit stops resumable after quit the protection If in 60 minutes the protection occurs for 3 times the failure can be sent to indoor unit 1 10 3 In heating indoor Tc high temperature protection Indoor heat exchanger temp sensor will check the indoor coil temperature if it is over ...

Page 39: ...er b1 W the compressor will reduce FQY 0 1HZ S when compressor power over c1 W rise the compressor FQY is forbidden when compressor power over d1 W the compressor will rise FQY 0 1HZ S Remark a b c d and a1 b1 c1 d1 are written in EEPROM can be adjusted according to different system 1 10 5 High low pressure protection High pressure protection high pressure switch will not detect when in standby de...

Page 40: ...ing and compulsory heating can not be setted ON synchronously 1 10 10 Failure code and troubleshooting The outdoor lamp will flash if there is failure the flash FQY is 1HZ the flash time is according to the following table the lamp will off for 3 seconds after one flash circuit meanwhile the lamps on LED board will light in 5 bit binary system light is 1 LED1 LED5 from low bit to high bit Alarm la...

Page 41: ...en indoor and outdoor unit 00011 Communication fail over 4min 3 Compressor V phase over current 00101 The current of compressor V phase is too high 33 Compressor W phase over current 00101 The current of compressor W phase is too high 34 Compressor jam only for spdu Inner compressor is abnormal jamed 15 Compressor phase loss 11110 U V W loss 30 Module lack voltage protection only for ISPM 11011 Se...

Page 42: ...ion The LED for remote control type includes POWER TIMER COMPRESSOR WATER PUMP the POWER LED also indicate failure when the unit is switched on by the controller the POWER LED will be ON when being switched off the POWER LED will be OFF If the controller is in TIMER and SLEEP mode the TIMER LED will be on if it is not in TIMER and SLEEP mode the TIMER LED will be off When the compressor is running...

Page 43: ...hange shutoff signal and protection action will not be limited by 6 minute protection and the compressor can stop immediately 5 3 ΔT 1 compressor will run ΔT 1 compressor will stop 1 ΔT 1 compressor will stay in original state 5 4 Anti freezed protection invalid in compulsory operation trial running heating mode When the unit has run for over 6 minutes after compressor starts up if indoor coil tem...

Page 44: ...r restart up if the temperature cutoff occurs for 3 times continuously the unit will stop and alarm 7 HEAT mode control 7 1 4 way valve control in heating mode compressor startup 4 way valve being electrified 10 seconds ahead compressor running 4 way valve retains original state compressor shutoff 4 way valve being powered off 2 minutes and 50 seconds later except for defrosting 4 way valve being ...

Page 45: ...ndition The defrosting temp over 14 or the defrosting time is over 12 minutes use the defrosting end signal from outdoor in the condition of with outdoor communication 7 8 4 Defrost process a enter defrosting mode the compressor outdoor and indoor fan motor stops b 55 seconds later 4 way valve will be reverse after more 5 sensonds compressor begins to run c defrosting is over compressor stops outd...

Page 46: ...es 7 After setting sleep function press CLOCK button to check the clock press TEMP button to display the set temperature and press again to change the set temperature 11 Water level inspection and water pump control 1 In COOL including cooling state of AUTO mode and the compulsory cooling and DRY mode as long as the compressor runs water pump will work and once the compressor stops water pump will...

Page 47: ...wer failure Wrong phase phase failure or loss Need to be checked reset 8 07 07H 06D Communication failure between wired controller and indoor unit communication abnormal for more than 4m continuously due to the signal resumable 9 06 06H 05D Communication failure between indoor and outdoor units communication abnormal for more than 4m continuously due to the signal resumable 11 11 0BH 30D External ...

Page 48: ...ol infrared control Temp compensation available not available With no outdoor PCB Cooling only heat pump J5 J6 Time shorting switch Forced or not Ornarment or not Oxygen or not J7 J8 J9 J10 Other 2P convertible single split multi split Indoor unit address 0 other 2P convertible single blade 15 Network address selection shows jumper connected ON shows jumper disconnected OFF SW1 SW2 address 1 2 3 4...

Page 49: ...RE NOT AVAILABLE 2 PARTS 4 5 6 ARE OPTIONAL AND THE LINE MARKED 13 ONLY AVAILABLE IN CONVERTIBLE TYPE 3 PART 7 NOT AVAILABLE IN DUCT TYPE 4 PARTS AND CONNECTED WIRES IN DASHED FRAME 8 ONLY FOR AB14 182ACBEA 5 PARTS AND CONNECTED WIRES IN DASHED FRAME 9 10 ARE NOT AVAILABLE IN AD14 182AMBEA AND IN CONVERTIBLE TYPE CORRESPONDINGLY THERE IS A CLIP ON PCB PARTS AND CONNECTED WIRES IN DASHED FRAME 11 O...

Page 50: ...7 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: ... 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 0010451690E for AC122ACERA and AD122ALERA Commercial Air Conditioner Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA 51 ...

Page 52: ...10 CN6 CN7 SW3 SW1 SW2 CN5 CN15 SW4 CN11 TO INDOOR UNIT P6 P5 P2 P3 P1 N L COM W R R R BL BL BL R B P4 1 2 3 Ground MAIN BOARD CN13 CN1 CN12 Y G Y G WIRING DIAGRAM OF OUTDOOR UNIT 0150501661 4 WAY VALVE COMPRESSOR DISCHARGE SENSOR COMPRESSOR SUCTION SENSOR ON LED BOARD LED3 LED4 LED5 1 4 3 4 3 5 1 2 3 4 6 7 5 7 1 2 LED1 LED2 AC FAN MOTOR DC FAN MOTOR M SPDU L IN N IN CN5 B BLACK BL BLUE W WHITE R ...

Page 53: ...ioner 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 Outdoor PCB 0151800037 53 ...

Page 54: ...e sensor 0010450196 001A3800096 R80 50KΩ 3 B25 80 4450K 3 AU122AEERA Condenser inlet temp sensor 0010451307 001A3800093 R25 10KΩ 3 B25 50 3700K 3 Indoor ambient temp sensor 001A3900005 001A3900003 R25 23KΩ 2 5 B25 50 4200K 3 AB122ACERA AC122ACERA Indoor coil temp sensor 001A3900006 001A3900004 R25 10KΩ 3 B25 50 3700K 3 Indoor ambient temp sensor 0010451323 001A3900003 R25 23KΩ 2 5 B25 50 4200K 3 A...

Page 55: ...0 11 71 3 36 19 41 5 32 3 99 04 41 11 22 2 34 41 42 5 12 2 93 52 42 10 76 1 32 73 43 4 93 1 88 35 43 10 31 0 31 14 44 4 9 0 83 5 44 9 89 1 29 64 45 4 58 1 78 94 45 9 49 2 28 22 46 4 42 2 74 67 46 9 1 3 26 4 47 4 26 3 70 65 47 8 74 4 25 61 48 4 11 4 66 88 48 8 39 5 24 41 49 3 97 5 63 33 49 8 05 6 23 27 50 3 83 6 60 50 7 73 7 22 2 51 3 7 7 56 86 51 7 43 8 21 18 52 3 57 8 53 91 52 7 14 9 20 21 53 3 4...

Page 56: ...0 27 464 15 4488 28 442 3 14 4225 29 421 7 13 3978 30 402 1 12 3747 31 383 6 11 3531 32 366 10 3328 33 349 3 9 3138 34 333 5 8 2960 35 318 4 7 2793 36 304 1 6 2636 37 290 5 5 2489 38 277 6 4 2351 39 265 3 3 2221 40 253 6 2 2099 41 242 5 1 1984 42 232 0 1877 43 221 9 1 1775 44 212 3 2 1680 45 203 2 3 1590 46 194 5 4 1506 47 186 3 5 1426 48 178 4 6 1351 49 170 9 7 1280 50 163 7 8 1214 51 155 9 9 115...

Page 57: ...es no no no 1 Sensor failure Replace PCB Check if the power normal outdoor indicator indicate the above failure check if the any current among compressor input port U V W is over high check if the system is blocked yes yes no check if module bottom temperature is over high more than 90degree if ventilation beside the module radiator is good yes compressor startup procedure is abnormal and vibrates...

Page 58: ... unit is switched on for 4 minutes indoor failure indicator flashes 9 times no check if wiring between indoor and outdoor is correct power supply is 50Hz if indoor unit alarms other failure codes check if the indoor PCB worked normally yes eliminate other faults adjust wiring and power supply note not connect the outdoor connecting port 1 2 wrong Replace outdoor PCB no no check the indoor wires co...

Page 59: ...ilures replace the outdoor module when compressor starting up unit stops abnormally and can not start up normally yes 6 Outdoor high pressure protection Alarm condition When compressor running high pressure is over 4 5 MPa for 30 seconds continously check if the piping is blocked yes adjust refrigerant adjust piping yes replace sensor 7 Outdoor power supply is abnormal Alarm condition if power sup...

Page 60: ...clean indoor outdoor heat exchanger check if indoor evaporator or outdoot condenser is too dirty yes check if the 4 way valve port of PCB output 230V check if outdoor pressure is normal no yes outdoor failure lamp indicates 28 12 4 way valve reversing failure systerm lack of refrigerant or discharging side dirty and blocked Alarm condition alarm and stop the unit when Td Tci 25 and lasts for 1 min...

Page 61: ...h super heating high cooling low cooling middle cooling high super cooling high fan low fan middle fan high super fan high Noise level AB122ACERA 10 14 18 22 26 30 34 38 42 46 50 54 2 5 3 1 5 4 0 5 0 6 3 8 0 1 0 0 1 2 5 1 6 0 2 0 0 2 5 0 3 1 5 4 0 0 5 0 0 6 3 0 8 0 0 1 0 0 0 1 2 5 0 1 6 0 0 2 0 0 0 2 5 0 0 3 1 5 0 4 0 0 0 5 0 0 0 6 3 0 0 8 0 0 0 1 0 0 0 0 1 2 5 0 0 1 6 0 0 0 0 2 0 0 0 0 Third octa...

Page 62: ... heating middle heating high cooling low cooling middle cooling high fan low fan middle fan high Noise level AC122ACERA 10 14 18 22 26 30 34 38 42 46 50 2 5 3 1 5 4 0 5 0 6 3 8 0 1 0 0 1 2 5 1 6 0 2 0 0 2 5 0 3 1 5 4 0 0 5 0 0 6 3 0 8 0 0 1 0 0 0 1 2 5 0 1 6 0 0 2 0 0 0 2 5 0 0 3 1 5 0 4 0 0 0 5 0 0 0 6 3 0 0 8 0 0 0 1 0 0 0 0 1 2 5 0 0 1 6 0 0 0 0 2 0 0 0 0 Third octave band frequency Hz Sound pr...

Page 63: ...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 ...

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