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Midea MOF-24HDN1-QC2W, Руководство по обслуживанию

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32

9.3  Key parts checking. 

9.3.1.  Compressor checking (Model:

 

DA150S1C-20FZ) 

        Measure the resistance value of each winding by using the multi-meter.  

                 

 

 

9.3.2    Outdoor Fan Motor (Model: YDK55-6G) 

        Measure the resistance value of each winding by using the multi-meter. 

               

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position

 

 Resistance Value 

Blue - Red 

0.95

Ω

 

(20

Ԩ

) 

 

Blue - Black 

Red - Blue 

Position

 

 Resistance Value 

Black - Red 

        191

Ω

 (20

Ԩ

) 

Red -Yellow 

        191

Ω

 (20

Ԩ

) 

Red -Blue 

        220

Ω

 (20

Ԩ

) 

Содержание MOF-24HDN1-QC2W

Страница 1: ...SERVICE MANUAL MIDEA AIRCONDITIONER DC INVERTER SPLIT WALL MOUNTED TYPE MSR1 24HRDN1 QC2W V1 0 Mar 2010...

Страница 2: ...e installation 13 7 6 Re air purging Re installation 14 7 7 Balance refrigerant of the 2 way 3 way valves 15 7 8 Evacuation 16 7 9 Gas charging 17 8 Electronic function 18 8 1 Abbreviation 18 8 2 Disp...

Страница 3: ...a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall wi...

Страница 4: ...directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operational Do not expose the skin d...

Страница 5: ...3 your skin or clothes wash it well with clean Do not use the remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards...

Страница 6: ...direction according to operation mode Turbo wind high med low breeze Restarting is for approx 3 minutes Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooli...

Страница 7: ...ency at operation mode Hydrophilic aluminum fin It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover 4 way valve control Made from ele...

Страница 8: ...6 3 Dimension 3 1 Indoor Unit 3 2 Outdoor Unit MOF 24HDN1 QC2W Dimension Model W H D 24k 1030 313 221...

Страница 9: ...45 41 Indoor unit Dimension W H D mm 1030 313 221 Packing W H D mm 1135 435 315 Net Gross weight Kg 14 19 Outdoor fan motor Model YDK55 6G Brand Welling Input W 103 76 Capacitor uF 2 5 Speed r min 840...

Страница 10: ...8 5 Refrigerant cycle diagram...

Страница 11: ...9 6 Wiring diagram 6 1 Indoor Unit...

Страница 12: ...10 6 2 Outdoor Unit...

Страница 13: ...16 0 3 8 9 52 5 10 25 40 Caution Capacity is based on standard length and maximum allowance length is base of reliability Oil trap should be installed per 5 7 meters 7 4 Air purging of the piping and...

Страница 14: ...and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kgf m 18N m 6 Set the 3 way valve to the opened position 7 Mounted the valve stem nuts to the 2 way...

Страница 15: ...hose with the push pin to the gas service port 5 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 6 Set the 2 way valve to the cl...

Страница 16: ...te repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigera...

Страница 17: ...ice port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1Mpa If there is no air in the refrigeration cycle the pressure when the air con...

Страница 18: ...ved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after...

Страница 19: ...fied amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait appr...

Страница 20: ...8 2 2 LED display control function Pressing LED display button on remote controller will turn off all displays on indoor unit while pressing once again all displays will resume 8 3 Protection 8 3 1 Pr...

Страница 21: ...cable will work 2 Preheating mode A weak current flows through the coil of compressor from the wiring terminal of compressor then the compressor is heated without operation 3 Preheating release condit...

Страница 22: ...ler 6 times or more within 10 seconds make sure indoor unit receives these signals the machine will turn into rating capacity test mode the buzzer will make a di sound for 2 seconds continuously Also...

Страница 23: ...changed The horizontal angle is the same as in cooling mode 8 6 2 Room overlow temperature protection In drying mode if room temperature is lower than 10 compressor will stop and not resume until roo...

Страница 24: ...ed 8 7 2 Indoor fan speed can be set as high medium low or auto grade but anti cold wind function is preferential Auto fan action in heating mode 8 7 3 After start the operation frequency of compresso...

Страница 25: ...ion 1 if the two items are satisfied then judges if T2 has descended for more than 5 if it has the machine starts defrosting or continues to judge T2 and will not defrost until T2 drops more than 5 Co...

Страница 26: ...rating capacity test mode 2 The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting temperature 8 7 9 Turbo function in heating mode Elevate c...

Страница 27: ...essing the touch button continuously the unit will be turned off 8 9 3 In forced operation mode all general protections is available 8 9 4 In forced cooling mode the unit will run with fixed frequency...

Страница 28: ...follow 1 After pressing ECONOMIC or SLEEP button on controller the machine will turn into sleep mode 2 When cooling the setting temperature rises 1 be lower than 30 every one hour 2 hour later the ris...

Страница 29: ...pacitors in PCB and relative circuit in outdoor unit even shut down the power supply electricity power still are kept in capacitors do not forget to discharge the electricity power in capacitor Electr...

Страница 30: ...munication protection E5 Open or short circuit of outdoor temperature sensor E6 Open or short circuit of indoor temperature sensor P0 Inverter module over strong current protection P1 Over voltage or...

Страница 31: ...between indoor and outdoor unit Is the connection of L N S and GND good Is the GND connection on outdoor PCB good NO NO Reconnect and retest again Is the LED4 red on outdoor PCB bright and LED1 yello...

Страница 32: ...nd compressor good Repair or correct the connector or connection Replace the outdoor PCB and then repower on Is the failure cleared NO YES Check the compressor NO Is the indoor temperature and evapora...

Страница 33: ...ressor is it right YES Replace inverter compressor Reconnect and retry NO NO YES Does compressor operate Is the connection good Is refrigerant circulation volume normal NO NO Charge refrigerant Is abn...

Страница 34: ...value of each winding by using the multi meter 9 3 2 Outdoor Fan Motor Model YDK55 6G Measure the resistance value of each winding by using the multi meter Position Resistance Value Blue Red 0 95 20 B...

Страница 35: ...or Measure the resistance value of each winding by using the multi meter Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30 40 50 60 Resistance Value K 26 9 20 7 16...

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