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)


Additional functions
The RVL480 offers the following functions (no submodules or extra devices required):
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