With Room Influence - Siemens RVA63.280 Basic Documentation

Introduction
Process
Switching off
Switching on
Siemens Building Technologies
Landis & Staefa Division
4.2.2

With room influence

The automatic 24-hour heating limit operates depending on the current flow
temperature setpoint. If a room unit is connected, the room influence continuously
readjusts the flow temperature setpoint.
This means that the automatic 24-hour heating limit differs when room influence is
used.
The temperature basis used for this process are the values of the flow temperature
setpoint and the current room temperature setpoint.
If the flow temperature setpoint corrected by the room influence falls below the room
temperature setpoint plus a correction value, the heating will be switched off.
Heating's switch-off point:
≤
TVwk
If the flow temperature setpoint corrected by the room influence exceeds the room
temperature setpoint plus a correction factor, the heating will be switched on.
Heating's switch-on point:
TVwk
TVwk Flow temperature setpoint corrected by the room temperature
TRw Room temperature setpoint
s Slope of heating curve
Basic Dokumentation RVA63.280, RVA53.280
S 31OEM
+ −
TRw 2
10 16
S 31OEM
≥ + −
TRw 4
10 16
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CE1P2374E
19.04.2001