Key functions
Weather-compensated flow temperature control, with or without room influence
6 preprogrammed plant types are provided

Plant system

• Control of a mixing valve serving a heating zone (space heating)


• Control of a burner (1- or 2-stage)


• Control of a valve in the primary return of a heating zone with district heat connection


• Demand-dependent control (precontrol) of a mixing valve / of the boiler temperature / of a heat exchanger (heat demand signal via data bus)

• Display of parameters, actual values, operating states and fault status signals


• 7-day program with 3 heating periods per day


• 2 additional programs, each with 3 switching periods per day


• Automatic summer/winter changeover


• Holiday program (up to 8 holiday periods per year)


• Optimum start/stop in accordance with the heating program (with or without room influence)


• Automatic ECO function, depending on the outside temperature and the type of building construction


• Optional remote selection of operating modes (via room unit or external switch)


• Scalable DC 0…,10 V output for passing on the heat request to other devices


• Quick setback and boost heating


• Preselection of flow temperature setpoint via external contact


• Minimum and maximum limitation of the flow temperature


• Minimum and maximum limitation of the return temperature (shifting / constant)


• Maximum limitation of the room temperature


• Communication with other devices via the data bus


• Limitation of the return temperature differential (DRT) for district heat applications


• Frost protection and pump protection


• Flow temperature alarm