Mitsubishi MUH-A18WV Скачать руководство пользователя страница 18

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MSH-A18WV -

: MUH-A18WV -

(230V)

5.88 2.76 0.47

1424

5.63 2.64 0.47

1495

5.40 2.54 0.47

1566

5.20 2.44 0.47

1638

6.13 2.14 0.35

1495

5.88 2.06 0.35

1584

5.70 2.00 0.35

1620

5.50 1.93 0.35

1691

5.88 3.00 0.51

1424

5.63 2.87 0.51

1495

5.40 2.75 0.51

1566

5.20 2.65 0.51

1638

6.13 2.39 0.39

1495

5.88 2.29 0.39

1584

5.70 2.22 0.39

1620

5.50 2.15 0.39

1691

6.38 1.72 0.27

1549

6.15 1.66 0.27

1647

6.00 1.62 0.27

1691

5.75 1.55 0.27

1762

5.88 3.23 0.55

1424

5.63 3.09 0.55

1495

5.40 2.97 0.55

1566

5.20 2.86 0.55

1638

6.13 2.63 0.43

1495

5.88 2.53 0.43

1584

5.70 2.45 0.43

1620

5.50 2.37 0.43

1691

6.38 1.98 0.31

1549

6.15 1.91 0.31

1647

6.00 1.86 0.31

1691

5.75 1.78 0.31

1762

5.88 3.47 0.59

1424

5.63 3.32 0.59

1495

5.40 3.19 0.59

1566

5.20 3.07 0.59

1638

6.13 2.88 0.47

1495

5.88 2.76 0.47

1584

5.70 2.68 0.47

1620

5.50 2.59 0.47

1691

6.38 2.23 0.35

1549

6.15 2.15 0.35

1647

6.00 2.10 0.35

1691

5.75 2.01 0.35

1762

6.70 1.54 0.23

1620

6.45 1.48 0.23

1709

6.30 1.45 0.23

1762

6.10 1.40 0.23

1851

5.88 3.70 0.63

1424

5.63 3.54 0.63

1495

5.40 3.40 0.63

1566

5.20 3.28 0.63

1638

6.13 3.12 0.51

1495

5.88 3.00 0.51

1584

5.70 2.91 0.51

1620

5.50 2.81 0.51

1691

6.38 2.49 0.39

1549

6.15 2.40 0.39

1647

6.00 2.34 0.39

1691

5.75 2.24 0.39

1762

6.70 1.81 0.27

1620

6.45 1.74 0.27

1709

6.30 1.70 0.27

1762

6.10 1.65 0.27

1851

5.88 3.94 0.67

1424

5.63 3.77 0.67

1495

5.40 3.62 0.67

1566

5.20 3.48 0.67

1638

6.13 3.37 0.55

1495

5.88 3.23 0.55

1584

5.70 3.14 0.55

1620

5.50 3.03 0.55

1691

6.38 2.74 0.43

1549

6.15 2.64 0.43

1647

6.00 2.58 0.43

1691

5.75 2.47 0.43

1762

6.70 2.08 0.31

1620

6.45 2.00 0.31

1709

6.30 1.95 0.31

1762

6.10 1.89 0.31

1851

6.90 1.31 0.19

1709

6.70 1.27 0.19

1798

6.60 1.25 0.19

1851

6.40 1.22 0.19

1905

5.88 4.17 0.71

1424

5.63 3.99 0.71

1495

5.40 3.83 0.71

1566

5.20 3.69 0.71

1638

6.13 3.61 0.59

1495

5.88 3.47 0.59

1584

5.70 3.36 0.59

1620

5.50 3.25 0.59

1691

6.38 3.00 0.47

1549

6.15 2.89 0.47

1647

6.00 2.82 0.47

1691

5.75 2.70 0.47

1762

6.70 2.35 0.35

1620

6.45 2.26 0.35

1709

6.30 2.21 0.35

1762

6.10 2.14 0.35

1851

6.90 1.59 0.23

1709

6.70 1.54 0.23

1798

6.60 1.52 0.23

1851

6.40 1.47 0.23

1905

5.88 4.41 0.75

1424

5.63 4.22 0.75

1495

5.40 4.05 0.75

1566

5.20 3.90 0.75

1638

6.13 3.86 0.63

1495

5.88 3.70 0.63

1584

5.70 3.59 0.63

1620

5.50 3.47 0.63

1691

6.38 3.25 0.51

1549

6.15 3.14 0.51

1647

6.00 3.06 0.51

1691

5.75 2.93 0.51

1762

6.70 2.61 0.39

1620

6.45 2.52 0.39

1709

6.30 2.46 0.39

1762

6.10 2.38 0.39

1851

6.90 1.86 0.27

1709

6.70 1.81 0.27

1798

6.60 1.78 0.27

1851

6.40 1.73 0.27

1905

5.88 4.64 0.79

1424

5.63 4.44 0.79

1495

5.40 4.27 0.79

1566

5.20 4.11 0.79

1638

6.13 4.10 0.67

1495

5.88 3.94 0.67

1584

5.70 3.82 0.67

1620

5.50 3.69 0.67

1691

6.38 3.51 0.55

1549

6.15 3.38 0.55

1647

6.00 3.30 0.55

1691

5.75 3.16 0.55

1762

6.70 2.88 0.43

1620

6.45 2.77 0.43

1709

6.30 2.71 0.43

1762

6.10 2.62 0.43

1851

6.90 2.14 0.31

1709

6.70 2.08 0.31

1798

6.60 2.05 0.31

1851

6.40 1.98 0.31

1905

5.88 4.88 0.83

1424

5.63 4.67 0.83

1495

5.40 4.48 0.83

1566

5.20 4.32 0.83

1638

6.13 4.35 0.71

1495

5.88 4.17 0.71

1584

5.70 4.05 0.71

1620

5.50 3.91 0.71

1691

6.38 3.76 0.59

1549

6.15 3.63 0.59

1647

6.00 3.54 0.59

1691

5.75 3.39 0.59

1762

6.70 3.15 0.47

1620

6.45 3.03 0.47

1709

6.30 2.96 0.47

1762

6.10 2.87 0.47

1851

6.90 2.42 0.35

1709

6.70 2.35 0.35

1798

6.60 2.31 0.35

1851

6.40 2.24 0.35

1905

5.88 5.11 0.87

1424

5.63 4.89 0.87

1495

5.40 4.70 0.87

1566

5.20 4.52 0.87

1638

6.13 4.59 0.75

1495

5.88 4.41 0.75

1584

5.70 4.28 0.75

1620

5.50 4.13 0.75

1691

6.38 4.02 0.63

1549

6.15 3.87 0.63

1647

6.00 3.78 0.63

1691

5.75 3.62 0.63

1762

6.70 3.42 0.51

1620

6.45 3.29 0.51

1709

6.30 3.21 0.51

1762

6.10 3.11 0.51

1851

6.90 2.69 0.39

1709

6.70 2.61 0.39

1798

6.60 2.57 0.39

1851

6.40 2.50 0.39

1905

5.88 5.35 0.91

1424

5.63 5.12 0.91

1495

5.40 4.91 0.91

1566

5.20 4.73 0.91

1638

6.13 4.84 0.79

1495

5.88 4.64 0.79

1584

5.70 4.50 0.79

1620

5.50 4.35 0.79

1691

6.38 4.27 0.67

1549

6.15 4.12 0.67

1647

6.00 4.02 0.67

1691

5.75 3.85 0.67

1762

6.70 3.69 0.55

1620

6.45 3.55 0.55

1709

6.30 3.47 0.55

1762

6.10 3.36 0.55

1851

6.90 2.97 0.43

1709

6.70 2.88 0.43

1798

6.60 2.84 0.43

1851

6.40 2.75 0.43

1905

INDOOR

DB(

)

INDOOR

WB(

)

OUTDOOR DB(

)

SHC SHF INPUT

CAPACITY : 5.0(KW) SHF : 0.65 INPUT : 1780(W)

PERFORMANCE DATA COOL operation

NOTE

Q : Total capacity (kW)

SHF : Sensible heat factor

DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW)

INPUT : Total power input (W)

WB : Wet-bulb temperature

OB322-1.qxp 03.11.13 4:06 PM Page 18

Содержание MUH-A18WV

Страница 1: ... MICROPROCESSOR CONTROL 25 10 SERVICE FUNCTIONS 29 11 TROUBLESHOOTING 29 12 DISASSEMBLY INSTRUCTIONS 39 13 PARTS LIST 43 Wireless type Models MUH A18WV MUH A24WV MUH A30WV E1 E1 E1 No OB322 SPLIT TYPE HEAT PUMP AIR CONDITIONERS MUH A18WV E1 Indication of model name NOTE This service manual describes technical data of outdoor unit As for indoor unit MSH A18WV MSH A24WV and MSH A30V refer to the ser...

Страница 2: ......

Страница 3: ...ble 0 055 1700 Gas phase Possible Compatible oil Light yellow Non Refrigerant Composition Ratio Refrigerant handling Chlorine Safety group ASHRAE Molecular weight Boiling point Steam pressure 25 Mpa Saturated steam density 25 Kg K Combustibility ODP w1 GWP w2 Refrigerant charge method Additional charge on leakage Kind Color Smell w1 Ozone Destruction Parameter based on CFC 11 w2 Global Warmth Para...

Страница 4: ...detector R410A has high pressures beyond the measurement range of existing gauges Port diameters have been changed to prevent any other refrigerant from being charged into the unit Hose material and cap size have been changed to improve the pressure resistance Dedicated for HFC refrigerant 6 35 mm and 9 52 mm Description Clamp bar hole has been enlarged to reinforce the spring strength in the tool...

Страница 5: ... the vacuum pump for air purging for the purpose of environmental protection 5 Additional charge For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas phase composition change may occur in the refrigerant inside the cylinder and the outdoor unit In this case ability of the refrigerating cycle decreases or normal operation ca...

Страница 6: ...Air inlet Air inlet Air outlet Drain outlet back and side Air outlet back and side OUTDOOR UNIT ACCESSORIES MUH A18WV E1 Outdoor unit 1 2 Drain socket Drain cap 33 Drain cap 16 1 2 1 2 1 MUH A18WV E1 MUH A24WV MUH A30WV E1 E1 MUH A24WV MUH A30WV E1 E1 ...

Страница 7: ...pacity Dehumidification Air flow High Starting current Compressor motor current Fan motor current Model Output Winding resistance at20 Model Winding resistance at20 Dimensions WOHOD Weight Sound level High Fan speed High Fan speed regulator Refrigerant filling capacity R410A Refrigerating oil Model Thermistor RT61 at0 kW r h K h A A A W mm kg dB rpm kg cc k MUH A18WV E1 Single phase 230V 50Hz 2 19...

Страница 8: ...ENCIES Hz Test conditions Cooling Dry bulb temperature 35 Wet bulb temperature 24 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE 53 SPL dB A LINE High FAN SPEED Heating Dry bulb temperature 7 Wet bulb temperature 6 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR MUH A18WV E1 MUH A24WV E1 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 NC 60 NC 50 NC 40 NC 30 NC 20 NC 7...

Страница 9: ... 30 100 161 157 74 850 500 183 20 292 605 248 35 350 50 290 310 345 20 355 90 Drainage hole 16 2 3 0 3 5 155 90 198 40 515 299 66 34 51 330 360 850 430 500 80 121 840 Open as a rule 500mm or more if the front and both sides are open 100mm or more 200mm or more if there are obstacles to both sides Open as a rule 500mm or more if the back both sides and top are open 350mm or more 100mm or more Servi...

Страница 10: ...CTOR VARISTOR DEFROST THERMISTOR SOLID STATE RELAY TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER CONTACTOR R V COIL RELAY R V COIL COMPRESSOR CONTACTOR SG79J883H01 MUH A18WV E1 MODEL WIRING DIAGRAM OUTDOOR UNIT MC CN661 3 1 2 CN721 21S4 MF SR62 SR61 TAB20 GRN YLW BLU CIRCUIT BREAKER POWER SUPPLY BLU BRN DSAR BLK BRN RED DEICER P C BOARD 4 C1 BLK RED 3 WHT S C R CN730 RT61 BLK 2 3 1 RED WHT 12V TO CONN...

Страница 11: ...62 SYMBOL CZ C1 C2 DSAR F61 LEV MC NAME NAME NAME CZ SURGE ABSRBER COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE 3 15A EXPANSION VALVE COIL COMPRESSOR INNER PROTECTOR OUTDOOR FAN MOTOR INNER PROTECTOR VARISTOR DEFROST THERMISTOR DISCHARGE TEMPERATURE THERMISTOR AMBIENT TEMPERATURE THERMISTOR SOLID STATE RELAY SOLID STATE RELAY TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER CONTACTOR R ...

Страница 12: ...low in cooling Refrigerant flow in heating Oil separator 100 4 way valve MUH A24WV E1 OUTDOOR UNIT Refrigerant pipe 15 88 with heat insulator Flared connection Flared connection Refrigerant pipe 6 35 with heat insulator Stop valve Receiver Check valve Capillary tube 3 0X 2 0X650 Defrost thermistor RT61 Compressor Stop valve with service port Outdoor heat exchanger Refrigerant flow in cooling Refri...

Страница 13: ...ling OFF Muffler 100 Strainer 100 Receiver Muffler Ambient temperature thermistor RT63 Strainer 100 Indoor unit wMax Height difference 10m MSH A18 A24WV 15m MSH A30WV A Refrigerant Piping Max Length w Height difference should be within 10m MSH A18 A24WV 15m MSH A30WV regardless of which unit indoor or outdoor position is high Outdoor unit MAX HEIGHT DIFFERENCE MAX REFRIGERANT PIPING LENGTH Model P...

Страница 14: ... Refrigerant piping length m 7 Model MUH A24WV E1 Refrigerant piping length one way Outdoor unit precharged 2 150 15m 160 20m 260 25m 360 7m 0 10m 60 Calculation Xg 20g m Refrigerant piping length m 7 Outdoor unit precharged 0 165 440 715 990 1 265 2 300 Refrigerant piping length one way 15m 10m 7m Model MUH A30WV E1 20m 25m 30m Calculation Xg 55g mo Refrigerant piping length m 7 ...

Страница 15: ...left side of the chart on this page and next page shows the differ ence between the indoor intake air wet dry bulb temperature and the indoor outlet air wet dry bulb temperature for your reference at service How to measure the indoor air wet bulb dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 ...

Страница 16: ...3 3 The unit of pressure has been changed to MPa on the international system of units SI unit system The conversion factor is 1 MPa Gauge 10 2 kgf f f Gauge 18 32 70 230V 15 20 50 25 60 30 35 0 7 0 8 0 9 1 0 1 1 1 2 1 3 7 8 9 10 11 12 13 15 20 50 25 60 30 70 35 5 6 8 7 18 32 230V MUH A18WV E1 MUH A18WV E1 Outdoor low pressure Ambient temperature C Ambient humidity Ambient temperature C Ambient hum...

Страница 17: ...3 12 11 230V Outdoor unit current A Ambient temperature C MUH A24WV E1 MUH A30WV E1 Ambient temperature C Ambient humidity 18 32 70 230V 15 20 50 25 60 30 35 5 6 7 8 9 10 11 5 6 7 8 9 10 11 Ambient temperature C Ambient humidity 18 32 70 230V 15 20 50 25 60 30 35 10 11 12 13 14 15 16 Outdoor low pressure Outdoor unit current A kgf F Gauge MPa Gauge MUH A30WV E1 Ambient temperature C 7 21 230V 5 10...

Страница 18: ...8 5 88 4 41 0 75 1424 5 63 4 22 0 75 1495 5 40 4 05 0 75 1566 5 20 3 90 0 75 1638 28 20 6 13 3 86 0 63 1495 5 88 3 70 0 63 1584 5 70 3 59 0 63 1620 5 50 3 47 0 63 1691 28 22 6 38 3 25 0 51 1549 6 15 3 14 0 51 1647 6 00 3 06 0 51 1691 5 75 2 93 0 51 1762 28 24 6 70 2 61 0 39 1620 6 45 2 52 0 39 1709 6 30 2 46 0 39 1762 6 10 2 38 0 39 1851 28 26 6 90 1 86 0 27 1709 6 70 1 81 0 27 1798 6 60 1 78 0 27...

Страница 19: ...0 75 1851 4 33 3 24 0 75 1887 28 20 5 15 3 24 0 63 1816 4 80 3 02 0 63 1905 4 63 2 91 0 63 1958 28 22 5 45 2 78 0 51 1887 5 10 2 60 0 51 1994 4 93 2 51 0 51 2029 28 24 5 75 2 24 0 39 1958 5 40 2 11 0 39 2047 5 25 2 05 0 39 2092 28 26 6 05 1 63 0 27 2029 5 70 1 54 0 27 2118 5 53 1 49 0 27 2163 29 18 4 90 3 87 0 79 1744 4 50 3 56 0 79 1851 4 33 3 42 0 79 1887 29 20 5 15 3 45 0 67 1816 4 80 3 22 0 67...

Страница 20: ...8 7 40 5 48 0 74 1928 7 09 5 24 0 74 2024 6 80 5 03 0 74 2121 6 55 4 85 0 74 2217 28 20 7 72 4 78 0 62 2024 7 40 4 59 0 62 2145 7 18 4 45 0 62 2193 6 93 4 30 0 62 2290 28 22 8 03 4 02 0 50 2097 7 75 3 87 0 50 2229 7 56 3 78 0 50 2290 7 25 3 62 0 50 2386 28 24 8 44 3 21 0 38 2193 8 13 3 09 0 38 2314 7 94 3 02 0 38 2386 7 69 2 92 0 38 2506 28 26 8 69 2 26 0 26 2314 8 44 2 19 0 26 2434 8 32 2 16 0 26...

Страница 21: ...0 74 2506 5 45 4 03 0 74 2555 28 20 6 49 4 02 0 62 2458 6 05 3 75 0 62 2579 5 83 3 61 0 62 2651 28 22 6 87 3 43 0 50 2555 6 43 3 21 0 50 2699 6 21 3 10 0 50 2747 28 24 7 25 2 75 0 38 2651 6 80 2 59 0 38 2772 6 62 2 51 0 38 2832 28 26 7 62 1 98 0 26 2747 7 18 1 87 0 26 2868 6 96 1 81 0 26 2928 29 18 6 17 4 82 0 78 2362 5 67 4 42 0 78 2506 5 45 4 25 0 78 2555 29 20 6 49 4 28 0 66 2458 6 05 3 99 0 66...

Страница 22: ...2738 9 18 6 61 0 72 2869 8 84 6 36 0 72 2999 28 20 10 41 6 25 0 60 2738 9 99 5 99 0 60 2901 9 69 5 81 0 60 2967 9 35 5 61 0 60 3097 28 22 10 84 5 20 0 48 2836 10 46 5 02 0 48 3016 10 20 4 90 0 48 3097 9 78 4 69 0 48 3227 28 24 11 39 4 10 0 36 2967 10 97 3 95 0 36 3130 10 71 3 86 0 36 3227 10 37 3 73 0 36 3390 28 26 11 73 2 82 0 24 3130 11 39 2 73 0 24 3293 11 22 2 69 0 24 3390 10 88 2 61 0 24 3488...

Страница 23: ... 72 3390 7 35 5 29 0 72 3456 28 20 8 76 5 25 0 60 3325 8 16 4 90 0 60 3488 7 86 4 72 0 60 3586 28 22 9 27 4 45 0 48 3456 8 67 4 16 0 48 3651 8 37 4 02 0 48 3716 28 24 9 78 3 52 0 36 3586 9 18 3 30 0 36 3749 8 93 3 21 0 36 3831 28 26 10 29 2 47 0 24 3716 9 69 2 33 0 24 3879 9 39 2 25 0 24 3961 29 18 8 33 6 33 0 76 3195 7 65 5 81 0 76 3390 7 35 5 59 0 76 3456 29 20 8 76 5 60 0 64 3325 8 16 5 22 0 64...

Страница 24: ... INPUT 2480 W 15 21 26 4 54 4 32 3 89 1612 1736 1860 5 47 5 18 4 82 1934 2058 2182 6 41 6 12 5 69 2182 2282 2406 7 34 6 98 6 62 2356 2455 2579 8 28 7 92 7 56 2505 2579 2703 9 14 8 78 8 42 2579 2654 2778 10 08 9 68 9 36 2629 2753 2852 MSH A24WV MUH A24WV 230V E1 E1 NOTE Q Total capacity kW INPUT Total power input W DB Dry bulb temperature OUTDOOR WB INDOOR 10 5 0 5 10 15 20 DB Q INPUT Q INPUT Q INP...

Страница 25: ...igh NOTE2 When indoor fan speed is Low except HEAT operation mode and the outside temperature is 30 or less the outdoor fan operates at Low Outdoor fan Low operation is cancelled according to the following conditions 1 or 2 1 When the operation is not changed and the outside temperature goes to 33 or more 2 When the operation is changed Change to HEAT operation mode Change of the indoor fan speed ...

Страница 26: ...ection is as same as during COOL mode of I FEEL CONTROL 3 Defrosting time chart Defrost thermistor RT61 13 or more MUH A30WV 3 or more MUH A18 A24WV 3 or less Outdoor 52C contactor Compressor X62 R V coil SR61 Outdoor fan Defrost counter Indoor fan Indoor vane ON OFF ON OFF ON OFF ON OFF ON OFF Horizontal Set position Max 10 min 30 sec 15 sec 30 sec 5 sec NOTE 4 Defrosting Defrosting of outdoor he...

Страница 27: ...ximate for 2 minutes since compressor has started Opening is set by the initial opening Initial opening is set according to each operation modes and outer temperature conditions From approximate 2 minutes to approximate 13 minutes for 11 minutes since compressor has started Opening is set by standard opening Standard opening is set according to each operation modes and outer temperature conditions...

Страница 28: ...s than 3 COOL RT is 3 or more NOTE Target discharge temperature Tb 85 80 70 65 Operation mode NOTE When the discharge temperature Ta is 50 or less on the cool operation or is 49 or less on heat operation LEV opening is set in 54 pulse When this state continues for 20 minutes the compressor is stopped and restarts in 3 minutes When the compressor is stopped the indoor unit indicates the abnormality...

Страница 29: ...V Defrost finish temperature changes from 13 to 15 MUH A30WV E1 E1 MUH A18WV MUH A24WV MUH A30WV MUH A18WV MUH A24WV MUH A30WV E1 E1 E1 TROUBLESHOOTING 11 11 1 Cautions on troubleshooting 1 Before troubleshooting check the following 1 Check the power supply voltage 2 Check the indoor outdoor connecting wire for mis wiring 2 Take care the following during servicing 1 Before servicing the air condit...

Страница 30: ...it Trouble of room temp erature indoor coil thermistor 3 time flash Cause Indoor unit Trouble of indoor fan motor Check room temperature thermistor and indoor coil thermis tor Refer to Test point diagram and voltage Refer to Check of indoor fan motor 4 time flash Cause Indoor unit Trouble of indoor unit control system Replace the indoor electronic control P C board 1 Check indoor outdoor connectin...

Страница 31: ...62 MUH A30WV Ambient temperature thermistor RT63 MUH A30WV Measure the resistance with a tester Before measurement hold the thermistor with your hands to warm it up Part temperature 0 C 40 C Normal 120 k 800k Abnormal Open or short circuit Normal 5 k 60 k Abnormal Open or short circuit Measure the resistance with a tester Part temperature 10 C 40 C Normal 5 k 60 k Abnormal Open or short circuit De...

Страница 32: ...tor Refer to page 31 Yes Is there 230V AC between 4 on the compressor contactor 52C and TAB20 on the deicer P C board Is there 230V AC between L N on the outdoor terminal block TB1 Replace the deicer P C board Replace the deicer P C board No No Yes Yes No Check the outdoor fan motor Refer to page 31 Is there 230V AC between 4 on the compressor contactor 52C and TAB 20 on the deicer P C board Repla...

Страница 33: ...mpressor contactor 52C and N on the outdoor terminal block Yes Replace the deicer P C board Replace the deicer P C board No Yes No Is there 230V AC between 1 L1 on the compressor contactor 52C and N on the outdoor terminal block No No Yes Yes Yes Is there 230V AC between CN711 2 3 MUH A24WV CN711 1 3 or 2 3 MUH A30WV on the deicer P C board w Operate the unit in COOL or HEAT mode by pressing the E...

Страница 34: ...ng wire After 3 minutes is there 230V AC between CN721 1 3 on the deicer P C board Replace the deicer P C board Yes No Replace the R V coil Disconnect the TAB52 on the deicer P C board Turn ON the power supply and operate the indoor unit in HEAT mode by pressing the EMERGENCY OPERATION switch Unit operates COOL mode even if it is set to HEAT mode MUH A18WV w First measure the resistance of R V coi...

Страница 35: ...401 MUH A24 A30 WV on the deicer P C board Refer to page 37 or 38 Yes No Replace the deicer P C board Yes No Make the wiring between CN730 on the deicer P C board and outdoor terminal block correct Refer to page 37 or 38 Replace the deicer P C board Yes Yes Yes After 3 minutes mis wiring is indicated 0 5 second ON 0 5 second OFF on OPERATION INDICATOR lamp on indoor unit w w Short circuit of JPG a...

Страница 36: ...ction Is LEV coil properly fixed to the body Ok Do you hear LEV click click Do you touch LEV and feel it vibrate Does the resistance of LEV coil have the characterictics No Yes Yes Yes No LEV CN724 WHT RED RED ORN YLW BRN BRN BLU Resistance 30 3 37 0 Characteristics of LEV coil No Properly fix LEV coil to the body Replace the deicer P C board NOTE After check of LEV do the undermentioned operation...

Страница 37: ... Fuse 2A 250V CN661 1 2 Defrost thermistor RT61 Refer to page 36 12V DC J204 J101 R601 5 10V DC 5V DC J205 J101 Power supply input 230V AC NR61 Varistor Jumper wire for change in defrost setting JRF JRG Refer to page 29 Defrost interval time short pin JPDS JPSG Refer to page 29 Refer to page 32 or 35 ...

Страница 38: ...20 30 40 50 60 70 80 90 100110120 0 100 200 300 400 500 600 700 800 900 Defrost thermistor RT61 Ambient temperature thermistor RT63 20 10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 Temperature Resistance k MUH A30WV CN662 1 2 Discharge temper ature thermistor RT62 Refer to page 36 CN662 3 4 MUH A30WV Ambient temperature thermistor RT63 Refer to page 36 MUH A30WV LEV connector CN724 Fan motor c...

Страница 39: ...ed by pulling it out Check the shape of the terminal and work Terminal with lock mechanism Detaching points Connector Sleeve Locking lever OPERATING PROCEDURE PHOTOS 1 Removing the cabinet 1 Remove the screws of the cabinet 2 Hold the down of the cabinet on the both side and remove the cabinet 2 Removing the deicer P C board 1 Remove the service panel and the cabinet 2 Disconnect all the connector...

Страница 40: ...rk on the propeller 3 Remove the clamp of outdoor fan motor lead wire and disconnect the outdoor fan motor connector 4 Remove the screws fixing the outdoor fan motor 5 Remove the outdoor fan motor 4 Removing the compressor 1 Remove the cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the compressor 6...

Страница 41: ...ont panel 9 Remove the screws of the back panel 10 Remove the back panel Photo 2 Photo 1 Photo 3 Screw of the top panel Screws of the cabinet Screws of the cabinet Screws of the top panel Screw of the motor support Set screws of the back panel Screws of the front panel 2 Removing the deicer P C board 1 Remove the service panel and the cabinet 2 Disconnect all the connectors and the terminals on th...

Страница 42: ...he outdoor fan motor 5 Remove the outdoor fan motor Photo 5 Set screws of the outdoor fan motor Set screws of the outdoor fan motor Propeller nut 4 Removing the compressor 1 Remove the cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the compressor 6 Recover gas from the refrigerant circuit 7 Disconn...

Страница 43: ...TOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR BASE STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL 4 WAY VALVE COMPRESSOR CAPACITOR OUTDOOR FAN MOTOR SURGE ABSORBER DEICER P C BOARD TERMINAL BLOCK TERMINAL BLOCK DEFROST THERMISTOR HANDLE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE FUSE R V COIL CHECK VALVE VARISTOR MC C1 MF DSAR TB1 TB2 RT61 F61 21S4 NR61 3RUBBERS SET RN196VHSHT 12 7...

Страница 44: ...44 MUH A24WV 13 2 OUTDOOR UNIT STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS E1 3 23 16 12 1 15 13 14 2 4 5 6 7 8 9 10 11 17 18 19 20 21 22 24 25 26 27 ...

Страница 45: ...3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 TOP PANEL OUTDOOR HEAT EXCHANGER OUTDOOR FAN MOTOR PROPELLER BASE CABINET HANDLE FAN GUARD 4 WAY VALVE R V COIL DEFROST THERMISTOR COMPRESSOR RUBBER SET COMPRESSOR STOP VALVE GAS STOP VALVE LIQUID VALVE COVER SERVICE PANEL SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR DEICER P C BOARD COMPRESSOR CONTACTOR COMPRESSOR CAPAC...

Страница 46: ...46 MUH A30WV 13 3 OUTDOOR UNIT STRUCTURAL PARTS ELECTRICAL PARTS AND FUNCTIONAL PARTS E1 4 24 17 13 1 16 14 15 2 5 6 7 8 9 10 11 12 18 19 20 21 22 23 25 26 27 28 3 2 ...

Страница 47: ...3 24 25 26 27 28 29 30 31 32 33 34 TOP PANEL THERMISTOR OUTDOOR HEAT EXCHANGER OUTDOOR FAN MOTOR PROPELLER BASE CABINET HANDLE FAN GUARD 4 WAY VALVE R V COIL DEFROST THERMISTOR COMPRESSOR RUBBER SET COMPRESSOR STOP VALVE GAS STOP VALVE LIQUID VALVE COVER SERVICE PANEL SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR DEICER P C BOARD COMPRESSOR CONTACTOR COMPRESSOR CAPACITOR BACK ...

Страница 48: ...17 704 E02 444 705 E02 444 706 1 2 DRAIN SOCKET DRAIN CAP DRAIN CAP 33 16 1 2 1 1 2 1 2 1 2 New publication effective Nov 2003 Specifications subject to change without notice C C Copyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Nov 2003 No OB322 6 Made in Japan HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN ...

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