Solar; Charging Controller (Dt); Start Function; Frost Protection For The Collector - Siemens Albatros 2 RVS13 Series User Manual

Charging controller (dT)

Start function

Collector start function
Min run time collector
pump

Frost protection for the collector

Overtemperature protection for the collector

Siemens
Building Technologies

6.6 Solar

Line no. Operating line
3810 Temp diff on
3811 Temp diff off
3812 Charg temp min DHW st tank
To charge the DHW storage tank via the heat exchanger, a certain temperature
differential between collector and storage tank is required, and the minimum charging
temperature must be reached.
T
TSp
On
OFF
Tkol Collector temp
On / Off Collector pump
SdEin Temperature differential ON
SdAus Temperature differential OFF
Line no. Operating line
3830 Collector start function
3831 Min run time collector pump
If the collector temperature cannot be accurately acquired during the time the pump is
deactivated (especially in the case of vacuum tubes), the pump can be switched on
from time to time.
The function periodically activates the collector pump for at least the selected minimum
running time.
Line no. Operating line
3840 Collector frost protection
When there is risk of frost at the collector, the collector pump will be activated to
prevent the heat-carrying medium from freezing.
·
If the collector temperature falls below the frost protection temperature, the
collector pump will be activated: TKol < TKolFrost
·
When the collector temperature returns to a level of 1 °K above the frost protection
temperature, the collector pump will be deactivated again: TKol > TKolFrost + 1
Line no. Operating line
User Manual
6 The settings in detail
Tkol
SdEin
SdAus
t
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CE1U2357en
2014-07-30