Mitsubishi Electric CAHV-R450YA-HPB Service Manual page 60

[ III Unit Components ]
6. IO board
CNREM
1 2 4 Signal output to Control board
3 5 Signal input from Control board
CN905
Water temp. setting Analog input
CN906
Signal output to Control board
2
5VDC input
3
HWE22020
CN301
Remote controller
DIP switch
SW501
CN908
1 12VDC input
- Signal input from Control board
2 5
CN907
3.3VDC input
1
Signal input from Control board
2
Signal output to Control board
3
4 Signal input from Control board
GND
5
- 51 - 51
Voltage output at the dry contact
CNFTC
200VAC and
communication signal
input/output
CNAC3
AC input
1 L1
3 N
F401, F402
6.3A 250VAC fuse
GB