Mitsubishi Electric MXZ-2C30VA Service Manual page 98

MXZ-6C120VA
3. Outdoor control P.C. board
Discharge temperature thermistor (RT62)
700
600
500
400
300
200
100
0
0 10 20 30
(
CN701
Signal transmission
to power board
Signal reception
F930 FUSE
T3.15AL250V
CN801 to power board
325 - 350V DC Input
F801 FUSE
T3.15AL250V
SW1
SW2
SW871
CN881
To power board
18V DC
17V DC
LED 3
LED 2
LED 1
(
Defrost
thermistor (RT61)
Discharge temperature
thermistor (RT62)
CN661
Outdoor heat exchang-
er temperature
thermistor (RT68)
CN681
High pressure switch
40 50 60 70 80 90 100 110 120
Temperature (°C)
(
X64A
CN781
X64B
to power board
12V DC
GND
325-350V DC
15V DC
0~15V DC
15V DC pulse wave
CN663 Ambient temp thermistor (RT65)
CN711
To power board
230V AC Input
LEV: 12V DC pulse wave
98
Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature thermistor (RT68)
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0 10 20 30 40
Temperature (°C)
CN931 to fan moter
Serial signal Room F
Serial signal Room E
Serial signal Room D
Serial signal Room C
Serial signal Room B
Serial signal Room A
Terminal block (S2)
Terminal block (S1)
CN714 Heater (option)
230V AC Output
CN713 Valve coil
230V AC Output
CN712 R.V. coil
230V AC Output
F711 FUSE
T3.15AL250V
)
CN631
signal to
indoor
unit
CN611
)
signal to
indoor
unit
)
CN601
signal to
indoor
unit