Mitsubishi Electric MXZ-2D33VA Service Manual page 161

MXZ-6D122VA
CN171
Fin temperature thermistor
(RT64)
CN152
Signal
Transmission
(From Outdoor
Control P.C. board)
5 VDC pulse wave
(+)
(-)
4. Outdoor display P.C. board
MXZ-2D33VA MXZ-2D40VA
MXZ-2D53VA MXZ-2D53VA2 MXZ-2D53VAH MXZ-2D53VAH2
OBH626K
Output to drive compressor
Connect to reactor Connect to reactor
(White line) (Red line)
MXZ-2D42VA
To inverter P.C. board (CN936)
5V GND
LED1 LED2
CNDC
Bus-bur voltage
290 - 370 VDC
CNAC2
Connect
230
to earth
VAC Output
MXZ-2D42VA2
SW1 SW2
161
Connect to earth
CNAC1
230 V Output
F1 FUSE
T6.3AL250V
F2 FUSE
T6.3AL250V
Connect
to earth
230 VAC 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 k ± 2%
B constant = 4150 ± 3%
1
273+t
1
323