Heating controller RVL 470 Landis & Staefa RVL480

Weather-dependent, multi-functional, communicative heating controller with or without room influence.
Functions:
Six system types heating circuit with automatic assignment of the required functions:


Control of a mixer in a heating group.
Burner control (single or dual stage).
Valve control in primary return in a heating group with district heat
connection.
Consumption dependent control of the main flow temperature through
controlling a timer in the main advance flow. Requisition via data bus. Consumption dependent control of the boiler temperature through controlling a burner (single or dual stage) requisition via data bus.
Consumption dependent control of secondary flow temperature through
controlling a valve in the primary return flow of a district heat
connection. Requisition via data bus.
Further functions:
Display of actual values, parameters, error messages and operating states. Week program with 3 time settings per day.
400 day clock with automatic summer/winter change
Holiday program (8 times per year)
Remote control of operating modes through room controller or external
contacts.
ECO function: consumption dependent switching of the heating, depending on the building and the outdoor temperature
Optimisation of On and Off times according to the set 7-day program
Quick decrease and quick increase of temperature according to the set 7day program
Flow temperature setting via external contact.
Min and max limitation of the flow temperature.
Constant/smooth min and max limitation of the return temperature.
Max. limit of room temperature.
Max. limit of setpoint increase.
Flow temperature alarm.
Frost protection.
Pump protection.
Communication via data bus.
Temperature difference limitation (DRT) for district heat connection
Technical data:
QAC22 and QAC32 can be used as weather sensors.
Operating voltage AC 230 V 50 Hz
Power consumption 7 VA
Relay outputs AC 24 … 250 V, 2 A

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