Mitsubishi Electric MXZ-3C30NA Service Manual page 88

2. Outdoor power P.C. board
MXZ-5C42NA MXZ-2C20NAHZ
MXZ-5C42NA2 MXZ-2C20NAHZ2 MXZ-3C24NAHZ2 MXZ-3C30NAHZ2
CN171
Fin temperature thermistor
(RT64)
CN152
Signal
Transmission
(From Outdoor
Control P.C. board)
5 V DC pulse wave
(+)
(-)
Fin temperature thermistor (RT64)
200
180
160
140
120
100
80
60
40
20
0
0 10 20 30 40 50 60 70 80
32 50 68 86 104 122 140 158 176
Temperature
Thermistor R50 = 17 k ± 2%
B constant = 4150 ± 3%
1
273+t
t : ºC = (º
OBH702E
MXZ-3C24NAHZ
Output to drive compressor
Connect to reactor Connect to reactor
(White line) (Red line)
1
323
MXZ-3C30NAHZ
CNDC
Bus-bar voltage
290 - 370 V DC
CNAC2
Connect
208/230
to earth
VAC Output
88
CNAC1 Connect to earth
208/230 V Output
F1 FUSE
T6.3AL250V
F2 FUSE
T6.3AL250V
Connect
to earth
208/230 V AC Input