Mitsubishi SUZ-KA35VA - Page 70

70
SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA.TH SUZ-KA60VA1.TH SUZ-KA60VAR2.TH
SUZ-KA71VA.TH SUZ-KA71VA1.TH
12-4. Trouble criterion of main parts (2)
Part name
Figure
Check method and criterion
Outdoor fan motor
R.V. coil
Expansion valve coil
(LEV)
Measure the resistance between lead wires with a tester.
(Part temperature -10°C ~ 40°C)
RED - BLK
BLK - WHT
WHT - RED
Normal
Measure the resistance with a tester.
(Part temperature -10°C ~ 40°C)
Normal
SUZ-KA50/60VAR2.TH
1.32 k ~ 1.62 k
Other models
2.6 k ~ 3.3 k
WHT - RED
RED - ORN
YLW - BRN
BRN - BLU
Normal
37.4  ~ 53.9 
Measure the resistance with a tester.
(Part temperature : -10°C ~ 40°C)
Measure the resistance with a tester.
Refer to 12-6. “Test point diagram and voltage”, 12-6-4. “Outdoor
electronic control P.C. board” or 12-6-7. “Inverter P.C. board”,
for the chart of thermistor.
Color of the lead wire
Color of the lead wire
Discharge temperature
thermistor (RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 12-6. “Test point diagram and voltage”, 12-6-4. “Outdoor
electronic control P.C. board” or 12-6-7. “Inverter P.C. board”,
for the chart of thermistor.
Defrost thermistor
(RT61)
Fin temperature
thermistor (RT64)
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor
(RT68)
13.4  ~ 16.4 
Measure the resistance between the terminals with a tester.
(Part temperature -10°C ~ 40°C)
Compressor
High pressure switch
(HPS)
SUZ-KA60VAR2.TH
SUZ-KA71VA
(1).TH
Pressure
3.7 ± 0.15 MPa
4.8 MPa
Close
Open
Normal
SUZ-KA50/60VAR2.TH
0.86  ~ 1.06 
SUZ-KA50/60VA(1).TH
0.40  ~ 0.49 
SUZ-KA71VA(1).TH
1.29  ~ 1.49 
W
U
V
WHT
RED
BLK
U
RED
WHT
BLK
V
W
(W)
(V)
(U)
LEV
WHT
RED
YLW
BRN
ORN
BLU
+ 0.05
- 0.1
OC322G