As standard the new Smart ventilation unit comes with two programmable I/O channels, for example, for the fireplace switch and emergency stop switch (IO1 and IO2). If there is a need of additional connection points, the ventilation unit has space for a separate SEC-connection cable.
The SEC connection cable includes extra connection points for an adapter cable from an analogue monitoring centre (DCC), three programmable I/O channels and 5 V supply voltage.
Fits the R2, R5-H, W3, W4, W5 and W9 Smart ventilation units
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