Mitsubishi Electric MXZ-2B30VA Service Manual page 84

2. Outdoor electronic control P.C. board
MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA
Discharge temperature thermistor (RT62)
700
600
500
400
300
200
100
0
0 10 20 30 40 50 60 70
Temperature (°C)
LED 1
LED 2
LED 3
SW1
Bus-bar
voltage
CN801
325~370
V DC
Input
F801
FUSE
T3.15AL250V
OBH554D
80 90 100 110 120
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature thermistor (RT68)
84
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0 10 20 30 40
Temperature (°C)
CN604
Serial signal Room D
12~24V DC
CN603
Serial signal Room C
12~24V DC
CN602
Serial signal Room B
12~24V DC
CN601
230V AC
Input
Serial signal
Room A
12~24V DC