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Toyotomi Kuro MTG A228DV, Руководство по обслуживанию

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10.2    Diagnosis and Solution .................................................................................................................................... 32

 

10.3    Key parts checking. ......................................................................................................................................... 35

 

Содержание Kuro MTG A228DV

Страница 1: ...SERVICE MANUAL DC INVERTER SPLIT WALL MOUNTED TYPE AIR CONDITIONER MTN MTG A228DV MTN MTG A235DV V1 0 2009...

Страница 2: ...7 Balance refrigerant of the 2 way 3 way valves 15 7 8 Evacuation 16 7 9 Gas charging 17 8 Operation characteristics 18 8 1 MTN MTG A228DV 18 8 2 MTN MTG A235DV 19 9 Electronic function 20 9 1 Abbrevi...

Страница 3: ...10 2 Diagnosis and Solution 32 10 3 Key parts checking 35...

Страница 4: ...t 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 with it causing property damage pr...

Страница 5: ...se product malfunction or inefficient operation Operational Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the p...

Страница 6: ...louver 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...

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: ...5 3 Dimension 3 1 Indoor Unit MTN A228DV MTN A235DV Dimension Mode W H L 9K 790 213 252 12K 790 213 252 W L H...

Страница 9: ...6 3 2 Outdoor Unit MTG A228 DV MTG A235 DV...

Страница 10: ...887x355x645 887x355x645 Net Gross weight Kg 40 5 43 40 5 43 Model DA108X1C 20FZ3 DA108X1C 20FZ3 Type ROTARY ROTARY Brand TOSHIBA TOSHIBA Capacity Btu h 10918 5 10918 5 Input W 855 5 855 5 Rated curre...

Страница 11: ...8 5 Refrigerant cycle diagram...

Страница 12: ...E L L O W T E R M IN A L M A INB O A R D I ND OO R UN I T C N 9 E V A P O R A T O RSE N S O R 2 1 2 1 C N 11 AM B IE N T S EN S O R 2 1 2 1 C N 7 M I R CO S W ITC H 2 1 123 45 S W IN GM O TO R M 5 123...

Страница 13: ...10 6 2 Outdoor Unit MTG A228DV MTG A235DV...

Страница 14: ...ngth m Max Elevation B m Max Length A m Additional refrigerant g m Gas Liquid 9k 3 8 9 52 1 4 6 35 5 5 10 30 12k 1 2 12 7 1 4 6 35 5 5 10 30 Caution Capacity is base on standard length and maximum all...

Страница 15: ...lve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1...

Страница 16: ...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 17: ...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 18: ...ce 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 cond...

Страница 19: ...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 20: ...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 21: ...58 0 60 0 62 0 64 0 52 0 54 0 56 Cooling Power Input KW Remark Indoor room temperature 27 19 Outdoor temperature 35 Indoor fan speed High 15 Cooling Capacity KW Cooling Characteristics Outdoor Ambient...

Страница 22: ...ength m 3 3 3 2 3 0 3 1 3 4 3 5 3 6 10 11 12 13 14 5 6 7 8 9 0 84 0 86 0 88 0 90 0 78 0 80 0 82 Heating Power Input KW Remark Indoor room temperature 20 Outdoor temperature 7 6 Indoor fan speed High 1...

Страница 23: ...RATION indicator This indicator illuminates when the AC is in operation TIMER indicator This indicator illuminates when TIMER is set ON OFF SELF CLEAN indicator This indicator illuminates when the AC...

Страница 24: ...the motor rotates again The spacing of Cross Zero signal is 6 13ms 9 3 9 Indoor fan delayed open function 9 3 10 For all modes when the units are turned on the indoor fan can operate 10 seconds after...

Страница 25: ...when T2 5 9 5 3 Outdoor unit current control in cooling mode Remark I1COOL I2COOL I3COOL 9K Model 4 5A 6 0 A 7 0 A 12K Model 5 2A 6 4 A 7 5 A 9 5 4 Rating capacity test function 1 Set the indoor unit...

Страница 26: ...n cooling and drying mode If T3 60 for 5 seconds compressor will stop immediately and the machine will not resume until T3 52 9 6 Drying mode 9 6 1 Indoor fan speed is fixed at breeze grade and can t...

Страница 27: ...ction is preferential Auto fan action in heating mode 9 7 3 The operation frequency of compressor after starting submits to following rule When the machine runs if Th stays in a zone for 3 minutes act...

Страница 28: ...n 6 for more than 3 minutes b The units runs with T3 3 for 80 minutes and T3 keeps lower than 4 for more than 3 minutes Condition 2 If T4 0 The program judges according to the condition 1 if the two i...

Страница 29: ...ill change to rating speed the frequency of compressor will be fixed as rating value Any condition of above is not satisfied the machine can not be turned into rating capacity test mode 2 The machine...

Страница 30: ...again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine In forced operaton remot...

Страница 31: ...ooling the setting temperature rises 1 be lower than 30 every one hour 2 hour later the rising stops and indoor fan is fixed as low speed 3 When heating the setting temperature descends 1 be lower tha...

Страница 32: ...ll be turned off automatically if indoor fan stops running due to malfunctions or anti cold wind When indoor fan restarts after malfunctions being eliminated and anti cold wind being released Plasma w...

Страница 33: ...apacitors 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 Elect...

Страница 34: ...mination error Indoor fan speed out of control Open or short circuit of outdoor temperature sensor or outdoor EEPROM parameter error Open or short circuit of room temperature sensor IPM error Over vol...

Страница 35: ...f 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 yellow blinking Replace outdoor e box Yes Yes The power s...

Страница 36: ...the failure cleared NO YES Check the compressor NO Is the indoor temperature and evaporator sensor connector and connection good Repair the connector and reconnect Replace the sensor and check if E6 d...

Страница 37: ...verter compressor is it 0 71ohm YES Replace inverter compressor Reconnect and retry NO NO Is the power supply good Be sure the power supply is normal when using the units NO YES Replace the outdoor e...

Страница 38: ...nce value of each winding by using the multi meter 10 3 2 Step Motor Model MP2835 Measure the resistance value of each winding by using the multi meter Position Resistance Value Blue Red 0 71 20 Blue...

Страница 39: ...he 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 1 0 1 5 2 0 2 5 3 0 4 0 5 0 6 0 Resistance Value K 2 6 9 2 0 7 1 6 1...

Страница 40: ...37...

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