Siemens AVS75.39 Series User Manual page 56

24-hour heating limit.
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Siemens
Building Technologies
The 24-hour heating limit is used to switch the heating on and off in the course of
the day, depending on the outside temperature. This function is used primarily
during intermediate seasons (spring and autumn) to respond to short-time
temperature variations.
Example:
Operating line
Comfort setpoint (TRw)
24-hour heating limit (THG)
Changeover temperature (TRw – THG) heating off
Switching differential (fixed)
Changeover temperature
A change in value shortens or extends the corresponding heating phases.
Increase: Heating mode will start earlier,
changeover to ECO later.
Decrease: Heating mode will start later,
changeover to ECO earlier.
The function is not active in operating mode "Continuously Comfort temperature"
The display shows ECO.
To give consideration to the building's thermal dynamics, the outside
temperature is attenuated
User manual RVS43.345
The settings in detail
heating on
E.g.
22 °C
-3 °C
=19 °C
-1 °C
=18 °C
CE1U2354en_021
2013-09-02