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137
Part name
Check method and criterion
Defrost thermistor (RT61)
Fin temperature thermistor (RT64)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger
temperature thermistor (RT68)
Measure the resistance with a tester.
Refer to 11-7. "TEST POINT DIAGRAM AND VOLTAGE" 1. "Inverter P.C. board", 2.
"Outdoor control P.C. board " or 3. "Outdoor power P.C. board" for the chart of thermis-
tor.
Discharge temperature thermistor
(RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 11-7. "TEST POINT DIAGRAM AND VOLTAGE" 1. "Inverter P.C. board", 2.
"Outdoor control P.C. board ", for the chart of thermistor.
Compressor
Measure the resistance between terminals with a tester.
(Winding temperature : -10°C - 40°C)
Normal (Each phase)
MXZ-2D33VA
MXZ-2D40VA
MXZ-2D42VA
MXZ-2D42VA2
MXZ-2D53VA MXZ-2D53VAH
MXZ-2D53VA2 MXZ-2D53VAH2
MXZ-3D54VA
MXZ-3D54VA2
MXZ-3D68VA
MXZ-4D72VA
MXZ-4D83VA
MXZ-5D102VA
MXZ-6D122VA
1.49 - 1.84
0.86 - 1.06
0.63 - 0.78
1.29 - 1.49
0.77 - 0.95
Outdoor fan motor
2
3
W
U
V
1
WHT
RED BLK
MXZ-2D33VA/40VA/42VA/42VA2/53VA
MXZ-2D53VA2/2D53VAH/2D53VAH2
MXZ-4D83VA/5D102VA
Measure the resistance between lead wires with a tester.
(Part temperature : -10°C - 40°C)
Normal (Each phase)
MXZ-2D
MXZ-4D83VA
MXZ-5D102VA
12 - 16
13.4 - 16.4
Outdoor fan motor
MXZ-3D54VA/3D54VA2/3D68VA/4D72VA/6D122VA
Refer to 11-6. .
R.V. coil
Measure the resistance with a tester. (Part temperature : -10°C - 40°C)
Normal
MXZ-2D33VA
MXZ-2D40VA
MXZ-2D42VA
MXZ-2D42VA2
MXZ-2D53VA MXZ-2D53VAH
MXZ-2D53VA2 MXZ-2D53VAH2
MXZ-4D83VA
MXZ-5D102VA
MXZ-3D54VA
MXZ-3D54VA2
MXZ-3D68VA
MXZ-4D72VA
MXZ-6D122VA
1.2 k - 1.56 k
1.26 k - 1.62 k
1.24 k - 1.86 k
Linear expansion valve
LEV
WHT
RED
YLW
ORN
BLU
Measure the resistance with a tester. (Part temperature : -10°C - 40°C)
Color of lead wire
Normal
WHT - RED
37.4 - 53.9
RED - ORN
YLW - RED
RED - BLU
High pressure switch (HPS)
MXZ-3D54VA2-
E3
,
ER3
,
ET3
MXZ-3D68VA/4D72VA
MXZ-4D83VA/5D102VA
MXZ-6D122VA
Pressure
Normal
HPS
MXZ-3D54VA2-
E3
,
ER3
,
ET3
MXZ-3D68VA-
E3
,
ER3
,
ET3
MXZ-4D72VA-
E3
,
ER3
,
ET3
MXZ-3D68VA-
E1
,
E2
,
ER2
,
ET2
MXZ-4D72VA-
E1
,
E2
,
ER2
,
ET2
MXZ-4D83VA/5D102VA
MXZ-6D122VA
3.43 0.15 MPa
3.7 0.3 MPa
3.43 0.15 MPa Close
4.41 0.1 MPa
4.8 0.2 MPa
4.41 0.1 MPa Open
Defrost heater
MXZ-2D53VAH/53VAH2
Measure the resistance with a tester. (Part temperature : -10°C - 40°C)
Normal
349 - 428
W
U
V
WHT
RED
BLK
11-5. TROUBLE CRITERION OF MAIN PARTS
MXZ-2D33VA MXZ-2D40VA MXZ-2D42VA
MXZ-2D42VA2 MXZ-2D53VA
MXZ-2D53VA2 MXZ-2D53VAH MXZ-2D53VAH2 MXZ-3D54VA
MXZ-3D54VA2
MXZ-3D68VA MXZ-4D72VA MXZ-4D83VA
MXZ-5D102VA MXZ-6D122VA
OBH626K
Содержание MXZ-2D33VA
Страница 25: ...25 WIRING DIAGRAM 6 MXZ 2D33VA E1 MXZ 2D40VA E1 MXZ 2D53VA E1 OUTDOOR DISPLAY P C BOARD OBH626K ...
Страница 26: ...26 MXZ 2D33VA E2 MXZ 2D42VA E2 MXZ 2D53VA E2 OBH626K ...
Страница 27: ...27 MXZ 2D33VA E3 MXZ 2D42VA E3 MXZ 2D53VA E3 OBH626K ...
Страница 28: ...28 MXZ 2D33VA ER2 MXZ 2D40VA ER2 MXZ 2D53VA ER2 OBH626K ...
Страница 29: ...29 MXZ 2D33VA ER3 MXZ 2D42VA ER3 MXZ 2D53VA ER3 OBH626K ...
Страница 30: ...30 MXZ 2D33VA ET2 MXZ 2D42VA ET2 MXZ 2D53VA ET2 OBH626K ...
Страница 31: ...31 MXZ 2D33VA ET3 MXZ 2D42VA ET3 MXZ 2D53VA ET3 OBH626K ...
Страница 33: ...33 MXZ 2D53VAH E1 OUTDOOR DISPLAY P C BOARD OBH626K ...
Страница 34: ...34 MXZ 2D53VAH E2 OBH626K ...
Страница 35: ...35 MXZ 2D53VAH E3 OBH626K ...
Страница 36: ...36 MXZ 2D53VAH ER2 OBH626K ...
Страница 37: ...37 MXZ 2D53VAH ER3 OBH626K ...
Страница 39: ...39 MXZ 3D54VA E1 OBH626K ...
Страница 40: ...40 MXZ 3D54VA2 E2 OBH626K ...
Страница 41: ...41 MXZ 3D54VA2 E3 OBH626K ...
Страница 42: ...42 MXZ 3D54VA2 ER2 OBH626K ...
Страница 43: ...43 MXZ 3D54VA2 ER3 OBH626K ...
Страница 44: ...44 MXZ 3D54VA2 ET2 OBH626K ...
Страница 45: ...45 MXZ 3D54VA2 ET3 OBH626K ...
Страница 46: ...46 MXZ 3D68VA E1 OBH626K ...
Страница 47: ...47 MXZ 3D68VA E2 OBH626K ...
Страница 48: ...48 MXZ 3D68VA E3 OBH626K ...
Страница 49: ...49 MXZ 3D68VA ER2 OBH626K ...
Страница 50: ...50 MXZ 3D68VA ER3 OBH626K ...
Страница 51: ...51 MXZ 3D68VA ET2 OBH626K ...
Страница 52: ...52 MXZ 3D68VA ET3 OBH626K ...
Страница 53: ...53 MXZ 4D72VA E1 OBH626K ...
Страница 54: ...54 MXZ 4D72VA E2 OBH626K ...
Страница 55: ...55 MXZ 4D72VA E3 OBH626K ...
Страница 56: ...56 MXZ 4D72VA ER2 OBH626K ...
Страница 57: ...57 MXZ 4D72VA ER3 OBH626K ...
Страница 58: ...58 MXZ 4D72VA ET2 OBH626K ...
Страница 59: ...59 MXZ 4D72VA ET3 OBH626K ...
Страница 60: ...60 MXZ 4D83VA E1 OBH626K ...
Страница 61: ...61 MXZ 4D83VA E2 OBH626K ...
Страница 62: ...62 MXZ 4D83VA ER1 OBH626K ...
Страница 63: ...63 MXZ 4D83VA ER2 OBH626K ...
Страница 64: ...64 MXZ 4D83VA ET2 OBH626K ...
Страница 65: ...65 MXZ 5D102VA E1 OBH626K ...
Страница 66: ...66 MXZ 5D102VA E2 OBH626K ...
Страница 67: ...67 MXZ 5D102VA ER1 OBH626K ...
Страница 68: ...68 MXZ 5D102VA ER2 OBH626K ...
Страница 69: ...69 MXZ 5D102VA ET2 OBH626K ...