Mitsubishi SUZ-KA35VA Service Manual page 70

12-4. Trouble criterion of main parts (2)
SUZ-KA50VA.TH SUZ-KA50VA
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA
Part name
Defrost thermistor
(RT61)
Fin temperature
thermistor (RT64)
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor
(RT68)
Discharge temperature
thermistor (RT62)
Compressor
Outdoor fan motor
R.V. coil
Expansion valve coil
(LEV)
High pressure switch
(HPS)
SUZ-KA60VAR2.TH
SUZ-KA71VA .TH
(1)
OC322G
.TH SUZ-KA50VAR2.TH
1
.TH SUZ-KA60VAR2.TH
1
.TH
1
Check method and criterion
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.
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.
Measure the resistance between the terminals with a tester.
(Part temperature -10°C ~ 40°C)
SUZ-KA50/60VA .TH SUZ-KA50/60VAR2.TH
(1)
0.40 ~ 0.49
Measure the resistance between lead wires with a tester.
(Part temperature -10°C ~ 40°C)
Color of the lead wire
RED - BLK
BLK - WHT
WHT - RED
Measure the resistance with a tester.
(Part temperature -10°C ~ 40°C)
SUZ-KA50/60VAR2.TH
1.32 k ~ 1.62 k
Measure the resistance with a tester.
(Part temperature : -10°C ~ 40°C)
Color of the lead wire
WHT - RED
RED - ORN
YLW - BRN
BRN - BLU
Pressure
3.7 ± 0.15 MPa
+ 0.05
4.8
- 0.1
Normal
SUZ-KA71VA
0.86 ~ 1.06 1.29
Normal
13.4 ~ 16.4
Normal
Other models
2.6 k ~ 3.3 k
Normal
37.4 ~ 53.9
Close
Open
MPa
70
.TH
(1)
V
WHT
~ 1.49
WHT
RED
ORN
Figure
W
RED
U
BLK
RED
U (W)
WHT
(V)
V
BLK
(U)
W
LEV
YLW BRN BLU