Discussion about the binding for WR3223 ventilation controller. This is used for room ventilation systems, for example in houses produced by company “Schwörer Haus”. The manufacturer of the controller is Hermes Electronic. (http://www.hermes-electronic.de/d/produkt/lueftungen/l_steuerungen.html)
The WR3223 binding can read several measurements and the current state of the ventilation system. It can also adjust the fan speed, operation mode and the target temperature.