77
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-2D53VA
MXZ-2D53VAH
MXZ-3D54VA
MXZ-3D68VA
MXZ-4D72VA
MXZ-4D83VA
MXZ-5D102VA
1.49 ~ 1.84
0.86 ~ 1.06
0.63 ~ 0.78
1.29 ~ 1.49
Outdoor fan motor
MXZ-2D33VA/40VA/53VA
MXZ-2D53VAH
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/3D68VA/4D72VA
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-2D53VA
MXZ-2D53VAH
MXZ-4D83VA
MXZ-5D102VA
MXZ-3D54VA
MXZ-3D68VA
MXZ-4D72VA
1.2 k ~ 1.56 k
1.26 k ~ 1.62 k
Linear expansion valve
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-3D68VA/4D72VA
MXZ-4D83VA/5D102VA
Pressure
Normal
HPS
3.7 0.3 MPa
Close
4.8 0.2 MPa
Open
Defrost heater
MXZ-2D53VAH
Measure the resistance with a tester. (Part temperature : -10 °C ~ 40 °C)
Normal
349 ~ 428
W
U
V
WHT
RED
BLK
LEV
WHT
RED
YLW
ORN
BLU
11-5. TROUBLE CRITERION OF MAIN PARTS
MXZ-2D33VA MXZ-2D40VA MXZ-2D53VA MXZ-2D53VAH
MXZ-3D54VA MXZ-3D68VA MXZ-4D72VA MXZ-4D83VA MXZ-5D102VA
2
3
W
U
V
1
WHT
RED BLK
OBH626B
Содержание MXZ-2D33VA-E1
Страница 16: ...16 OUTLINES AND DIMENSIONS 5 MXZ 2D33VA MXZ 2D40VA MXZ 2D53VA MXZ 2D53VAH Unit mm OBH626B ...
Страница 20: ...20 WIRING DIAGRAM 6 MXZ 2D33VA MXZ 2D40VA MXZ 2D53VA OUTDOOR DISPLAY P C BOARD OBH626B ...
Страница 21: ...21 MXZ 2D53VAH OUTDOOR DISPLAY P C BOARD OBH626B ...
Страница 22: ...22 MXZ 3D54VA OBH626B ...
Страница 23: ...23 MXZ 3D68VA OBH626B ...
Страница 24: ...24 MXZ 4D72VA OBH626B ...
Страница 25: ...25 MXZ 4D83VA OBH626B ...
Страница 26: ...26 MXZ 5D102VA OBH626B ...