Heating controller for boiler temperature control and d.h.w. heating

Stock no. BPZ:RVL481

Stock no. BPZ:RVL481

Key functions

Weather-compensated flow temperature control, with or without room influence, with simultaneous demand-compensated boiler and DHW control.

29 preprogrammed plant types can be selected from a combination of 6 heating applications and 5 DHW applications.

Heating circuit plant types

  • Control of a mixing valve serving a heating circuit (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)

DHW plant types

  • Charging of DHW storage tank through control of a charging pump.

  • Charging of DHW storage tank through control of a mixing valve

  • Charging of DHW storage tank through control of a diverting valve

  • DHW heating via heat exchanger through control of a 2-port valve in the primary return

  • DHW heating with electric immersion heater only

  • DHW heating with solar collector

Additional functions

In addition to the functions of the RVL480, the RVL481 offers the following functions (no submodules or extra devices required):

  • 2 programs for heating and DHW, each with 3 heating periods per day

  • 1 multifunctional relay for switching on/off the plant according to various parameters and functions



Operating voltage

AC 230 V


50 Hz

Power consumption

9 VA

Relay output, switching voltage

AC 24...230 V

Relay output, switching current

2 A

Dimensions (W x H x D)

144 x 144 x 113 mm