Automatic 24-Hour Heating Limit; Without Room Influence - Siemens RVA47.320 User Manual

Example
Benefit
Description
Notes
Introduction
Process
Switching off
Switching on
Siemens Building Technologies
HVAC Products
T
°C
90
80
70
60
50
40
30
20
20 10
TKw Boiler temperature setpoint
TVw1 Flow temperature setpoint of the controller-internal heating circuit (incl. setpoint boost if any)
TVw2 Flow temperature setpoint of a controller-external heating circuit (incl. setpoint boost if any)
7.3

Automatic 24-hour heating limit

Automatic shutdown of heating.
Saving energy without sacrificing comfort.
This is a fast-acting savings function since the heating is switched off when there is no
more demand for heat. Economical operation is ensured throughout the year,
especially during intermediate seasons. Manual switching off is no longer required.
The automatic 24-hour heating limit does not function in continuous operation
The display shows the automatic 24-hour heating limit as "ECO"
7.3.1

Without room influence

If no room unit is connected, the room temperature setpoint will not be readjusted by
the room influence. In that case, the automatic 24-hour heating limit operates according
to the selected setpoint of
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 falls below the room temperature setpoint plus a
correction value, the heating will be switched off.
Heating OFF:
TVw
If the flow temperature setpoint exceeds the room temperature setpoint plus a
correction value, the heating will be switched on.
Basic Documentation RVA47.320
Functions with no settings
TK
w
TV
w1
0 -10
or .
= TRw +2 S/10
TV
w2
-20 -30
TA
gem
137/166
CE1P2379E
15.07.2002