32
7-4. Specifications of Optional Connectors on the Air to
Air Heat Exchanger Unit Board
Function
Connector No. Pin No.
Specification
Note
External
input
No-voltage
contact a
CN705
1
0V (COM)
2
Remote controller
prohibition input
Remote controller prohibition input (ON: Prohibited, OFF:
Allowed)
3
Ventilation fan speed
change input
Ventilation fan speed change input (ON: LOW, OFF: HIGH)
4
Ventilation mode change
input
Ventilation mode change input (ON: Bypass, OFF: Heat
Exchange)
5
Start/Stop input
Start/Stop input (pulse/static input changed by No. 1 of DIP
SW701, OFF: Static (default), ON: Pulse)
External
input
DC12V, 24V
CN706
1
DC12V (COM)
2
Start/Stop input
Start/Stop input (pulse/static input changed by No. 1 of DIP
SW701, OFF: Static (default), ON: Pulse)
Summary of Contents for VN-M1000HE
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