Freely configurable multifunctional control element. With integrated KNX bus coupler. With label field. Support of KNX functions through innovative color concept (yellow = lighting, blue = blinds, orange = RTR, magenta = scene and white = neutral / no function assignment) or standard lighting red / green. Button function: switching / dimming / blinds / sending value / light scenes etc. Master / slave operation. With base load operation. The controller is a constant room temperature controller for fan coil units in 2- and 4-pipe systems and conventional heating or cooling systems. The fan level can be switched manually or to automatic mode. Class of temperature controller: 1 Contribution to room heating energy efficiency: 1.0%. Number of bus participants: 1 If required, please refer to the current application description for the programmable functions, which you can download from our website www.busch-jaeger.de.