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9.2 Diagnosis and Solution

9.2.1 Indoor fan speed out of control diagnosis

Is the indoor fan motor connector and

connection good?

The unit does not work normally

Turn off the unit, rotate the cross

fan.Does it rotate freely?

Disassemble the connection between

fan and motor, check if the bearing is

normal. If not, change the bearing.If

yes, follow the below step.

Replace the fan motor

Yes

Replace the indoor PCB

Yes

Is the voltage being applied to the fan

motor?

Yes

Shut off the power supply and turn on it 5s later

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Содержание ACP-09CH25AEF

Страница 1: ...ACP 09CH25AEF ACP 12CH35AEF ACP 18CH50AEF ACP 09CH25AEG ACP 12CH35AEG ACP 18CH50AEG ACP 24CH70AEG Service manual ENG RoHS NNO 1 09 ...

Страница 2: ......

Страница 3: ... 16 6 3 Pipe length and the elevation 17 6 4 Air purging with vacuum pump 18 6 5 Pumping down Re installation 19 6 6 Re air purging Re installation 20 6 7 Balance refrigerant of the 2 way 3 way valves 21 6 8 Evacuation 22 6 9 Gas charging 23 7 Operation characteristics 24 8 Electronic function 25 8 1 Abbreviation 25 8 2 Display function 25 8 3 Main Protection 26 9 Troubleshooting 36 9 1 Indoor uni...

Страница 4: ... there is risk of fire or electric shock n Always ground the product There is risk of fire or electric shock n Install the panel and the cover of control box securely There is risk of fire of electric shock n Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock n Use the correctly rated breaker of fuse There is risk of fire or electric sho...

Страница 5: ...isk of fire or electric shock n Do not place anything on the power cable There is risk of fire or electric shock n Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock n Do not touch operation the product with wet hands There is risk of fire or electric shock n Do not place a heater or other appliance near the power cable There is risk of fire and el...

Страница 6: ...nter the product There is risk of fire electric shock or product damage n Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock n Turn the main power off when cleaning or maintaining the product There is risk of electric shock n When the product is not be used for a long time disconnect the power supply plug or turn off the brea...

Страница 7: ...of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property n Do not block the inlet or outlet of air flow It may cause product failure n Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product n Do not touch the metal parts of the product whe...

Страница 8: ... not mix old and mew batteries or different types of batteries There is risk of fire or explosion n Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode n If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries could cause burns o...

Страница 9: ...units Outdoor units 9k ACP 09CH25AEF ACP 09CH25AEG 12k On Off 18k PDF pdfFactory Pro www fineprint cn 24k ACP 09CH25AEF ACP 09CH25AEG ACP 12CH35AEF ACP 12CH35AEG ACP 24CH70AEG ACP 18CH50AEF ACP 18CH50AEG ACP 12CH35AEF ACP 12CH35AEG ACP 24CH70AEG ACP 18CH50AEF ACP 18CH50AEG ...

Страница 10: ...en on evaporator by sensing the evaporator pipe temperature in cooling mode Room temperature sensor Pipe temperature sensor Indoor units Operation by remote controller Sensing by room temperature Room temperature control Anti freezing control in cooling mode Time Delay Safety control Indoor fan speed control Sleep mode auto control Independent dehumidification Air flow Direction control Auto mode ...

Страница 11: ...water from dripping Outdoor units Power relay control Valve protection cover Made from electrolytic zinc steel sheet and anti rust coated components Low noise air flow system Anti rust cabinet PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 12: ...9 3 Dimension 3 1 Indoor Units Figure 1 Figure 2 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 13: ...H Figure 1 ACP 09CH25AEF ACP 09CH25AEG 710 189 250 Figure 2 790 190 275 Figure 3 940 198 275 Figure 4 1030 221 313 ACP 12CH35AEF ACP 12CH35AEG ACP 24CH70AEG ACP 18CH50AEF ACP 18CH50AEG PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 14: ...r Units Model W H D B C F 700 535 235 458 250 60 780 540 250 549 276 58 760 590 285 530 290 63 845 695 335 560 335 73 ACP 09CH25AEF ACP 09CH25AEG ACP 12CH35AEF ACP 12CH35AEG ACP 24CH70AEG ACP 18CH50AEF ACP 18CH50AEG ...

Страница 15: ...12 4 Refrigerant Cycle Diagram PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 16: ...13 5 Wiring Diagram 5 1 Indoor Units ACP 09CH25AEF ACP 12CH35AEF ACP 18CH50AEF ACP 09CH25AEG ACP 12CH35AEG ACP 18CH50AEG ACP 24CH70AEG ...

Страница 17: ...14 ACP 09CH25AEF ACP 12CH35AEF ACP 09CH25AEG ACP 12CH35AEG PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 18: ...15 ACP 18CH50AEF ACP 18CH50AEG ACP 24CH70AEG ...

Страница 19: ...he power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm 3 and 6 0 75 6 and 10 1 0 10 and 16 1 5 16 and 25 2 5 The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate bef...

Страница 20: ...h m Max Elevation B m Max Length A m 5 8 20 ACP 18CH50AEF ACP 18CH50AEG 5 10 25 ACP 09CH25AEF ACP 09CH25AEG ACP 12CH35AEF ACP 12CH35AEG ACP 18CH50AEF ACP 18CH50AEG ACP 24CH70AEG ACP 09CH25AEF ACP 09CH25AEG ACP 12CH35AEF ACP 12CH35AEG ACP 24CH70AEG 5 10 20 Caution Capacity test is based on standard length and maximum allowance length is based on system reliability Oil trap should be installed per 5...

Страница 21: ...ompound meter Pressure gauge 76cmHg Handle Lo Charge hose Charge hose Outdoor unit Close Three way valve Procedure 1 Completely tighten the flare nuts of the indoor and outdoor units connect the manifold valve charge 2 Connect the charge hose connection to the vacuum pump 3 Fully open the handle Lo of the manifold valve 4 Operate the vacuum pump to evacuate After starting evacuation slightly loose...

Страница 22: ...ral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 6 5 Pumping down Re installation Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position ...

Страница 23: ...closed position Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa 8 Disconnect the charge set and amount the 2 way and 3 way valve s stem nuts and service port caps Use a torque wrench to tighten the service port cap Be sure to check for gas leakage 6 6 Re air purging Re installation Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect ...

Страница 24: ...akage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrenc...

Страница 25: ... the refrigerant until the gauge indicates 0 05 to 0 1 Mpa Discharge the refrigeration gradually if it is discharged too suddenly the refrigeration oil will be discharged 6 8 Evacuation Procedure 1 Connect the vacuum pump to the charge set s centre hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve ...

Страница 26: ...e the air be careful of the liquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant 4 Disconnect the charge hose from the 3 way valve s service port immediately Stopping partway will allow the refrigerant to be discharged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner befo...

Страница 27: ...bnormally 2 Room relative humidity less than 80 If the air conditioner operates in excess of this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 Optimum performance will be achieved within this operating temperature PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 28: ... board Auto indicator This indicator illuminates when the air conditioner is in AUTO operation Timer indicator This indicator illuminates when TIMER is set ON OFF PRE DEF Indicator For Cooling Heating models only This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode OPERATION indicator This indicator il...

Страница 29: ...rrent exceeds IFAN the outdoor fan will shut off if AC is in heating mode If AC is in cooling mode the indoor fan will run at low speed I3SEC 10 0A I5min 8 5A IFAN 6 5A IRESTORE 5 5A for ACP 09CH25AEF ACP 09CH25AEG models I3SEC 12 0A I5min 10 0A IFAN 9 0A IRESTORE 8 0A for ACP 12CH35AEF ACP 12CH35AEG models I3SEC 16 0A I5min 15 0A IFAN 14 0A IRESTORE 12 0A for ACP 18CH50AEF ACP 18CH50AEG models 8 ...

Страница 30: ...wing conditions happen the PTC heater will close Running not in heating mode PTC function is inactive Compressor running time is less than 6 seconds Indoor fan is off Indoor evaporator coil temperature T2 52 for 3 minutes T1 33 for 3 minutes Running in defrosting mode Note If AC did not run in heating mode before and change to heating mode now the PTC function will be active In this condition the ...

Страница 31: ...wer than Tn the compressor and outdoor fan will shut off When T1 is higher than Tm the compressor and outdoor fan will start up Tm Ts 1 Tn Ts 8 4 2 2 Outdoor fan running rules The On off outdoor units have single fan speed The outdoor fan will run following the compressor except when AC is in evaporator high temp protection in heating mode condenser high temp protection in cooling mode defrosting ...

Страница 32: ... ACP 12CH35AEF 8 4 3 Heating Mode 8 4 3 1 Compressor running rules Everytime the compressors start up they will keep running for t minutes protections are active and then follow the below rules While t 7 When indoor room temp T1 is higher than Tj the compressor and outdoor fan will shut off When T1 is lower than Tk the compressor and outdoor fan will start up ACP 12CH35AEG models While TE5 3 C TE6...

Страница 33: ...r is on the indoor fan can be set to high med low auto And the anti cold wind function has the priority Anti cold wind function When evaporator coil temp T2 is getting higher T2 TE2 the indoor fan will run at setting speed TE1 T2 TE2 the indoor fan will run at low speed When T2 is getting lower TE4 T2 TE3 the indoor fan will run at low speed T2 TE4 the indoor fan will shut off While TE1 28 TE2 32 ...

Страница 34: ...5AEF ACP 09CH25AEG models 2 After the last defrosting the time that the outdoor fan is off but the compressor is on in high T2 protection cumulates up to 90 minutes Condition of ending defrosting If any one of the following items is satisfied the defrosting will terminate and the machine will turn to normal heating mode 1 The defrosting time is reached to the setting value 2 The compressor current...

Страница 35: ...rosting The defrosting time is 10 minutes l No matter what condition of defrosting is if the defrosting time keeps 7 5 minutes for 3 times it will be 10 minutes in the 4th defrosting 8 4 3 5 High evaporator coil temp T2 protection For 7k 9k 18k models While TE7 60 C TE8 53 C TE9 50 C for ACP 09CH25AEF ACP 09CH25AEG models TE7 63 C TE8 53 C TE9 52 C for ACP 12CH35AEF ACP 12CH35AEG models TE7 60 C T...

Страница 36: ...ng mode 8 4 5 1 The indoor fan will run following the compressor If the compressor is on the indoor fan will run at low speed If the compressor is off the indoor fan will run at breeze Running rules No Condition Indoor fan Compressor and outdoor fan 1 T1 TS 2 Low Breeze ON 6 minutes OFF 4 minutes 2 TS T1 TS 2 Low Breeze ON 5 minutes OFF 5 minutes 3 T1 TS Low Breeze ON 4 minutes OFF 6 minutes 8 4 5...

Страница 37: ...setting time 8 4 7 3 Timer off The machine will turn off automatically when reaching the setting time 8 4 7 4 Timer on off The machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setting off time 8 4 7 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reach...

Страница 38: ...to restart module In case of a sudden power failure the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including Swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit will run in cooling mode for 30 minutes and then turn to drying mode as 24 setting temp...

Страница 39: ...lay Operation lamp Timer lamp Failure X Indoor fan speed has been out of control O The T1 or T2 sensor is open circuit or short circuit O EEPROM error Zero crossing detection error O light X off flash PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 40: ...rotate the cross fan Does it rotate freely No Disassemble the connection between fan and motor check if the bearing is normal If not change the bearing If yes follow the below step Replace the fan motor Yes Replace the indoor PCB No Yes Is the voltage being applied to the fan motor Yes Shut off the power supply and turn on it 5s later PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Страница 41: ... fault Replace indoor PCB Shut off the power supply and turn on it 5s later The problem comes out again Is the EEPROM chip plugged in indoor PCB well No Correct the connection Replace the main PCB of indoor unit Yes Replace outdoor PCB Yes Check the connections between the sensors and the PCB Are the connections good Replace the sensor and check if the errors happen again PDF 文件使用 pdfFactory Pro 试...

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