Haier AP482AKEAA Service Manual
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Haier AP482AKEAA Service Manual

Commercial air conditioning
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See also: Operation & Installation Manual
Commercial Air Conditioning
Features
High energy efficiency
Fixed frequency
Optional different side frame color
Quiet operation
Auxiliary electric heating function (optional)
New friendly refrigerant R410a, environment protection
Weekly timer (standard)
Group control function
Auto restart function
Manual code: SYJS-029-06REV.0

SERVICE MANUAL

Models
AU182AEEAA
AU242AGEAA
AU48NAIEAA
AU60NAIEAA
AP482AKEAA
Edition: 2006-08-24

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Summary of Contents for Haier AP482AKEAA

  • Page 1: Service Manual

    Commercial Air Conditioning SERVICE MANUAL Models AU182AEEAA AU242AGEAA AU48NAIEAA AU60NAIEAA AP482AKEAA Features High energy efficiency Fixed frequency Optional different side frame color Quiet operation Auxiliary electric heating function (optional) New friendly refrigerant R410a, environment protection Weekly timer (standard) Group control function Auto restart function Manual code: SYJS-029-06REV.0...

  • Page 2: Table Of Contents

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA CONTENTS Contents………………………………………………………...2 1. Description of products & features………………………..3 2. Specification…………………………………………………5 3. Safety precaution……………………………………………8 4. Net dimension……………………………………………….10 5. Installation instructions………..……………………………12 6. Parts and functions………………………………………….12 7. Controller functions………………………………………….13 8. Electrical control functions………………………………….14 9. Refrigerant circuit…………………………………………..23 10 . Electrical data…………………………………………..2 4 11.

  • Page 3: Description Of Products & Features

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code explanation U 18 Climate type: T1 (see table 1) Design number (A-G stands for fixed frequency type, R-Z stands for 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 type, refrigerant is R410a Q stands for cool only type, refrigerant is R410A...

  • Page 4: Product Features

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 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. Universal outdoor unit The outdoor unit has been uniformed which can be connected with different type indoor units with identical capacity such as cassette type, duct type, convertible, cabinet type etc..

  • Page 5: Specification

    3.05 D EER or COP Dehumidifying capacity 10 ³×m³/h Running /Max.Running current 8.0A/9.5A 9.0A/10.5A A / A Start Current Unit model (color) AP482AKEAA white) centrifugal fan X1 Type × Number 460/430/400±40 Speed(H-M-L) r/min 0.06 Fan motor output power 1750/-/-m³/h Air-flow(H-M-L) m³/h...
  • Page 6 Commercial Air Conditioner Model: AP*****EAA AU*****EAA item Model AU242AGEAA H05RN-F 3G 4.0mm2 Power cable 1PH,220-230VAC,50HZ Power source N, V, Hz WHITE Unit model (color) Model / Manufacture PA290X3CS-4MU1 TOSHIBA VG74 Oil model Compressor Oil charging 950ML Rotary Type axial×1 Type × Number 1000±50 Speed r/min...
  • Page 7 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU60NAIEAA item Model Power cable H07RN-F 5G 4.0mm2 connectting cable H05RN-F 4G 0.75mm2 OU: 380-400V, 3N, 50HZ IU:1PH, 220-230V, 50HZ Power source N, V, Hz WHITE Unit model (color) Model / Manufacture JT170G-P8Y1 DAIKIN Oil model DAPHNE Compressor...

  • Page 8: Safety Precaution

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 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. Incorrect operations may result in severe consequences of death or serious injuries. WARNING! CAUTION! Incorrect operations may result in injuries or machine damages;...
  • Page 9 Commercial Air Conditioner Model: AP*****EAA AU*****EAA WARNING! No goods or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker. It easily cause electrical shock without The falling of goods and people may circuit breaker. cause accidents.

  • Page 10: Net Dimension

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 4. Net dimension AP482AKEAA AU182AEAA 6AF;B 8=B=@< 7;B?=@9> 6AF;B 8=B=@< 4=CDB=:ED=A@ 5A>;...
  • Page 11 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU242AGEAA AU48NAIEAA, AU60NAIEAA Power wiring Terminal Screw Hole (4xM10)

  • Page 12: Installation Instructions

    For outdoor unit, Please reference to the ROOM AIR CONDITIONER OUTDOOR UNIT INSTALLATION INSTRUCTIONS 0010577959A. As for the cabinet indoor unit, Please reference to the CABINET TYPE AIR CONDITIONER Operation & Installation Manual 0010578212. 6. Parts and Functions AP482AKEAA HEALTH TEMP - MODE HEALTH...

  • Page 13: Controller Functions

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU242AGEAA FNW NSQJY YTU HT[JW KWTSY UFSJQ \NWNSL GT] HT[JW HTRUWJXXTWnNSXNIJ TK ZSNYo XYTU [FQ[J GTYYTR UQFYJ FNW TZYQJY FNW TZYQJY LWNQQJ AU48NAIEAA, AU60NAIEAA FNW NSQJY FNW TZYQJY HTRUWJXXTWnNSXNIJ TK ZSNYo XYTU [FQ[J 7. Controller functions For cabinet type, the indoor unit can be controlled by remote controller YR-H49.

  • Page 14: Electrical Control Functions

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 8. Electrical Control Functions 8.1 For cabinet indoor unit 1.Indoor AUTO FAN control A. During cooling program. If the unit enters AUTO FAN for the first time, when Tr Ts+2, select high speed; when Tr Ts, select low speed;...
  • Page 15 Commercial Air Conditioner Model: AP*****EAA AU*****EAA temperature and Ts means setting temperature. Select running mode according to the following conditions at the first time to enter Auto mode: Tr Ts-3 to select cooling mode (with setting temperature being Ts +3) Tr Ts-3 to select heating mode (with setting temperature being Ts) After the system entering auto run mode, the running mode can convert automatically...
  • Page 16 Commercial Air Conditioner Model: AP*****EAA AU*****EAA Current peak value protection Controlled by outdoor unit. 4. DRY mode control (in the following selections, Tr means room temperature and Ts means setting temperature.) When the uint enters DRY mode for the first time, the compressor, outdoor motor and indoor motor will perform according to the below conditions: Tr>...
  • Page 17 Commercial Air Conditioner Model: AP*****EAA AU*****EAA Ts-1<Tr<Ts + 1 compressor retains original state Ts+1 Ts-1 stop Outdoor motor and the compressor runs or stops simultaneously (except for overheat protection), indoor fan speed can be set at High, Med, Low or Auto speed, and the fan blade can swing or be fixed on one position.
  • Page 18 Commercial Air Conditioner Model: AP*****EAA AU*****EAA defrosting. For the unit with auxiliary electric heating function, If the auxiliary electric heating function is working when the defrosting condition is met, please stop electric heater firstly, 3 seconds later, defrosting can begin. 7.
  • Page 19 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 8.2 For outdoor unit 1. Outdoor motor control When the system does not occur overcooling, overheating, and over current protections, the outdoor motor will occur the below changes according to the outdoor ambient temperature and indoor coil temperature.
  • Page 20 Commercial Air Conditioner Model: AP*****EAA AU*****EAA Type 1: Standard defrost 1) If Tr -2 , when Tp -6 , enter defrost. 2) If -12 Tr -2 , when Tp -6 , please refer to the following chart. 3) No matter the ambient temperature, when Tp -16 , enter defrost. Coil temp.( ) Ambient Type 2: Non-standard defrost (rectify defrost data by the device)
  • Page 21 Commercial Air Conditioner Model: AP*****EAA AU*****EAA When compressor has run for over 6 minutes, to prevent indoor evaporator freezing (in cooling/dry mode), if indoor coil temp. is below -1 degree for over 1 minutes, compressor and outdoor motor will stop and enter Fan mode. After compressor stops for 9 minutes, and indoor coil temp. rises up to 10 , the unit resumes to cooling mode, compressor and outdoor motor will work again.
  • Page 22 Commercial Air Conditioner Model: AP*****EAA AU*****EAA pressure switch act, low pressure switch has acteivated more than 30 seconds, LCD will display Low pressure abnormal (3) In defrosting and in 6 minute after defrost is over , low pressure switch will not be checked. (4) In heating, compressor run and outdoor motor stop, low pressure switch will be shielded.

  • Page 23: Refrigerant Circuit

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 9. Refrigerant circuit AU182AEEAA main sub-capillary cooling capillary single check stop valve heating valve condenser evaporator 4-way valve maintenance valve compressor 3-way stop valve AU242AGEAA, AU48NAIEAA, AU60NAIEAA capillary 3-way stop cooling valve (liquid heating side) condenser evaporator...

  • Page 24: Electric Data

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 10. Electric data 10.1 Electric Wiring diagram and PCB photo AP482AKEAA CIRCUIT DIAGRAM OF INDOOR UNIT 0010578100 TRANSFORMER CN24 T3.15A/250VAC ROOM TEMP. SENSOR CN25 FUSE PIPING TEMP. SENSOR CONTROL PANEL CN23 CN22 CN11 CN12...
  • Page 25 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 0010452322 (for AP482AKEAA) CN22 CN13 CN12 CN20 CN11 CN19 CN25 CN10...
  • Page 26 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU182AEEAA 0010573313 CIRCUIT DIAGRAM OF OUTDOOR UNIT RELAY TRANS. FAN MOTOR SPEED CONTROLLER FAN MOTOR CAP. CIRCUIT HIGH PRESSURE SWITCH FAN MOTOR DETECTOR 4-WAY VAVLE WIND CN10 CRANK LOW PRESSURE SWITCH HEATER OUTDOOR AMBINENT SENSOR CN12 OUTDOOR PIPING SENSOR CN11...
  • Page 27 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU242AGEAA CIRCUIT DIAGRAM OF OUTDOOR UNIT TRANS. RELAY 3 HIGH PRESSURE SWITCH FAN MOTOR LOW PRESSURE SWITCH SPEED CN10 CONTROLLER MOTOR OUTDOOR AMBINENT SENSOR CAP. CN12 FAN MOTOR OUTDOOR PIPING SENSOR CN11 4-WAY VAVLE DISCHARGE SENSOR SOLENOID FUSE...
  • Page 28 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU48NAIEAA, AU60NAIEAA 0010573510 CIRCUIT DIAGRAM OF OUTDOOR UNIT TRANS. HIGH PRESSURE SWITCH MOTOR FAN MOTOR MOTOR SPEED CN10 CONTROLLER LOW PRESSURE SWITCH MOTOR OUTDOOR AMBINENT SENSOR CN12 FAN MOTOR 4-WAY VALVE OUTDOOR PIPING SENSOR SOLENOID CN11 COMPRESSOR VENT SENSOR...
  • Page 29 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 0010452378E CN10 CN12 CN11...
  • Page 30 R25=5K ±3% 001A3900110 001A3800090 sensor B25/50=3450K±3% AU48NAIEAA R25=5K ±3% coil temperature sensor 0010451314 001A3800091 AU60NAIEAA B25/50=3450K±3% R80=50K ±3% discharging temperature sensor 0010450398 001A3800096 B25/80=4450K±3% R25=10K ±3% coil temperature sensor 0010401922 001A3900004 AP482AKEAA B25/50=3700K±3% R25=23K ±2.5% temperature sensor 001A3900159 001A3900003 B25/50=4200K±3%...

  • Page 31: Troubleshooting

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 11. Troubleshooting 1) Pressure protection Confirm the fault according to the fault code list Does system have Are CN17 and CN18 Replace PCB pressure switch? in PCB cut off? Make them in short circuit Is actual pressure detected by Change pressure pressure gage acceptable?
  • Page 32 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 3) Low pressure protection Confirm the fault according to the fault code list Are connectors of pressure switch in good Check and reconnect condition? Is low side pressure switch Replace PCB activated? (If not, DC voltage is 0V.) Is the low side pressure detected by the gage lower than threshold value? Replace low pressure...
  • Page 33 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 4) High pressure protection Confirm the fault according to the fault code list Are connectors of pressure switch in good Check and reconnect condition? Is high side pressure switch Replace PCB activated? (If not, DC voltage is 0V.) Is the high side pressure detected by Replace high pressure the gage higher than threshold...
  • Page 34 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 5) Communication error between indoor and outdoor units Confirm commumication failure according to the fault code list Confirm the fault indicator is communication failure Are communication wire Does indoor communication S and supply wires L and re-wiring indicator flash? N properly connected?
  • Page 35 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 7) High current protection in 3-phase fixed frequency models Is three-phase circuit not balanced? Is supply voltage too Modify power supply circuit low? Is supply voltage too low at compressor start-up? Is power cable or compressor wire re-wiring securely connected? Properly? Confirm detecting circuit...
  • Page 36 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 9) Overcurrent protection for single-phase fixed frequency models Is supply voltage too low? Especially modify power supply circuit when compressor starts up? Is supply wire securely re-wiring connected? Is compressor current more than overcurrent Confirm detecting circuit protection limit? Is current detecting circuit in is abnormal,replace...
  • Page 37 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 10) Temperature cutoff protection confirm the malfunction according to the fault code list Does small relay coil Is outdoor four-way valve Relay is broken. of four-way valve have in good condition during Replace PCB a voltage of 12V DC? heating cycle? Does four-way...
  • Page 38 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 11) Fault in drain system confirm the malfunction according to the fault code list Unclog pipe and Is drain pipe clogged? water pump Is pump motor in Replace water good condition? pump Is drain pan dirty and Clean drain pan float switch ineffective? Is float switch holder tinted...
  • Page 39 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 13) Fault in indoor fan motor confirm the malfunction according to the fault code list Is indoor status Is output voltage of indication good? fan motor good? Is fan capacitor Is power supply good? Replace fan in good capacitor...
  • Page 40 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 14) Troubleshooting (before replacement of PCB) Service call Fault confirmation For example: no cooling, etc. 1.Is supply voltage acceptable? Confirm operating 2.Is temperature setting correct? (e.g. too high) conditions 3.Is system in TIMER mode? 4.Is user aware of product features, etc.

  • Page 41: Performance Curves

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 12. Performance curves AU182AEEAA 16/10 4920 5190 5310 5500 5700 5940 18/12 4860 5060 5230 5550 5620 5860 20/14.5 4650 4970 5180 5400 5540 5780 22/16 4498 4821 5061 5320 5490 5650 24/17 4320 4723 4993 5210...
  • Page 42 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 20/14 5200 5050 4800 4700 4500 4300 22/16 5500 5400 5100 4980 4750 4480 25/18 5800 5650 5400 5300 5000 4700 27/19 6000 5780 5550 5400 5170 4850 30/22 6420 6320 5950 5800 5550 5400 32/24 6680...
  • Page 43 Commercial Air Conditioner Model: AP*****EAA AU*****EAA AU242AGEAA -6/-7 -4/-5 -1/-2 12/10 16/15 16/10 6210 6340 6690 7061 7916 8012 8763 9023 18/12 6138 6266 6613 6980 7827 7922 8664 8923 20/14.5 5900 6023 6358 6713 7534 7625 8338 8590 21/15 5749 5868 6195...
  • Page 44 Commercial Air Conditioner Model: AP*****EAA AU*****EAA 18/12 6421 —— 6682 6630 6657 5861 20/14 6676 —— 7183 7012 6920 6236 22/16 6852 —— 7483 7249 7101 6505 25/18 7106 —— 8026 7670 7362 6790 27/19 7350 —— 8453 7980 7613 7042 30/22 7565...

  • Page 45: Noise Level Charts

    Commercial Air Conditioner Model: AP*****EAA AU*****EAA 13. Noise level charts sound pressure level DB sound pressure level DB...
  • Page 46 Commercial Air Conditioner Model: AP*****EAA AU*****EAA sound pressure level DB...
  • Page 47 Commercial Air Conditioner Model: AP*****EAA AU*****EAA Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

This manual is also suitable for:

Au60naieaaAu48naieaaAu242ageaaAu182aeeaa

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