Heating controller Landis & Staefa RVL480

Weather-compensated, 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 mixing valve 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 by controlling a mixing valve in the main advance flow.
Requisition via data bus.
Consumption-dependent control of the boiler temperature by controlling a burner (single or dual stage) Requisition via data bus.
Consumption-dependent control of secondary flow temperature by 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 statuses. Weekly programme with 3 operating times per day.
Annual clock with automatic summer/winter changeover.
Holiday programme (8 periods per year).
Remote control option for operating modes via room unit or external contacts.
ECO function: Switching the heating on and off as required based on the building construction and outside temperature.
Optimisation of switch-off and switch-on times according to the entered weekly programme.
Rapid lowering and rapid heating according to the entered weekly programme.
weekly programme.
Flow setpoint specification via external contact.
Min. and max. limitation of the flow temperature.
Constant/sliding min. and max. limitation of the return temperature.
Maximum limitation of the room temperature.
Maximum limitation of the setpoint increase.
Flow temperature alarm.
Frost protection.
Pump protection.
Communication with other devices via data bus.
Temperature difference limitation (DRT) especially for district heating connection.
Technical data:
- QAC22 and QAC32 can be used as weather sensors.
- Operating voltage AC 230 V 50HZ
- Power consumption max. 7 VA
- Relay outputs Type AC 24 ... 230 V, 2 

For more information see Downloads