RVL480

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

• Operating voltage: AC 230 V
• Frequency: 50 Hz
• Power consumption: 7 VA
• Analog inputs, number: 6
• Analog outputs, number: 1
• Digital inputs, number: 3
• Digital outputs, number: 3
• Relay output, switching voltage: AC 24…230 V
• Relay output, switching current: 2 A
• Mounting: Wall mounting
• Degree of protection: IP42
• Dimensions (W x H x D): 144 x 144 x 113 mm
• Warranty: 24 Months

• RVL481

• S55230-V283

• S55230-V133

• SSB31.1