With label field. For Busch-Installationsbus® KNX bus coupler 6120/12-101, 6120/13 and Busch-Powernet® KNX network coupling 6920/12, 6920/13. 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 / ventilation function) Master / slave operation. With base load operation. The controller is a constant room temperature controller for fan convectors (fan coil) in 2- and 4-pipe systems and conventional heating or cooling systems. The fan level can be switched manually or to automatic mode. Transparent label sheet with standard symbols included in delivery. Incl. 5 logic channels (logic gate, gate, delay and staircase light). Temperature controller class: 1 Contribution to space heating energy efficiency: 1.0%. ETS programming only from ETS 3.0f