Going by the little diagram on that bracket, A is COM, B is Normally Open, C is Normally Closed.
So blue to COM and brown to NO on the Tado if you want to match exactly what was done before. But it's likely just a switch, so polarity doesn't actually matter.
@grams
Going by the little diagram on that bracket, A is COM, B is Normally Open, C is Normally Closed.
So blue to COM and brown to NO on the Tado if you want to match exactly what was done before. But it's likely just a switch, so polarity doesn't actually matter.