VITOTRONIC 200 HO1A Installation
I’ve just tried wiring the internet bridge into my boiler control unit, but the cables shown in the app are different colours to the ones in my boiler. Instead of black and grey cables there are blue and brown cables. The existing cables connect with the existing exterior thermostat. So to me it seems logical that I would replace these two cables with the two tado cables but I don’t know which cable should go to which junction. Does anyone have experience in installing into a VITOTRONIC? I’m trying to match the tado wiring diagram to the one for the VIESSMANN équipement but i can’t make head or tail of it.