Mitsubishi Electric MXZ-3E54VA-E1 Service Manual page 107

MXZ-4E83VAHZ
CN171
Fin temperature thermistor
(RT64)
CN152
Signal
Transmission
(From Outdoor
Control P.C. board)
5 V DC pulse wave
(+)
(-)
OBH723D
Output to drive compressor
Connect to reactor Connect to reactor
(White line) (Red line)
CNDC
Bus-bur voltage
290 - 370 V DC
CNAC2
Connect
230
to earth
V AC Output
107
Connect to earth
CNAC1
230 V Output
F1 FUSE
T6.3AL250V
F2 FUSE
T6.3AL250V
Connect
to earth
230 V AC Input
Fin temperature thermistor (RT64)
200
180
160
140
120
100
80
60
40
20
0
0 10 20 30 40 50 60 70 80
Temperature
Thermistor R50 = 17 kΩ ± 2%
B constant = 4150 ± 3%
1
Rt = 17exp{4150(
273+t
(°C)
1
)}
323