Intuitive, convenient and efficient operation of your Vitodens 300 and Vitodens 200 heating systems with color touch display and integrated LAN Module.The Viessmann Vitotrol Plus app allows you to easily operate Viessmann Vitodens 300 and Vitodens 200 heating systems with color touch display and integrated LAN Module. Operation of the app is intuitive, simple and easy from anywhere and at any time of the day. The Vitotrol Plus app has a context-sensitive help function. The Vitotrol Plus app will provide access to the following functions: Easy setting of heating program, room temperature setpoint, domestic hot water temperature setpoint, holiday program and time programs. Transparent display of operating parameters including all relevant temperatures. Display of efficiency data including solar yield and run time hours. Remote site monitoring including the notification of fault conditions.To use all the functions of the Vitotrol Plus app, the Ethernet connection of the LAN Module integrated in the Vitodens 300 and Vitodens 200 needs to be connected to a DSL router on site.Vitotrol Plus app includes a Showcase function, which allows access to a simulated heating system.