Operation Manual

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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products Buffer storage tank 23. August 2007
Off:
The stratification protection function is switched off.
Always:
The stratification protection function is active when the
source (generator) is enabled.
With solid fuel boiler
The stratification protection function is active only if
the solid fuel boiler is enabled.
A common flow sensor B10 must be connected for this
function.
Overtemperature protection
Line no. Operating line
4750 Charging temp max
Solar energy charges the buffer storage tank until the preset maximum charging
temperature is reached.
The protective collector overtemperature function can reactivate the collector pump
until the maximum storage tank temperature is reached.
Recooling
Line no. Operating line
4755 Recooling temp
4756 Recooling DHW/HCs
4757 Recooling collector
Off
Summer
Always
2 functions are available for recooling the buffer storage tank down to the recooling
temperature.
Heating energy can be drawn off either by space heating or the DHW storage tank.
This can be selected separately for each heating circuit (operating page for heating
circuit 1…).
If the collector is cold, the energy can be emitted to the environment via the collector
surfaces.
Plant hydraulics
Line no. Operating line
4783 With solar integration
Select here whether the buffer storage tank can be charged by solar energy.
Return diversion
Line no. Operating line
4790 Temp diff on return div
4791 Temp diff off return div
4795 Compar temp return div
B4 ¦ B41 ¦ B42
4796 Optg action return diversion
Temp decrease
Temp increase
If there is a certain temperature differential between the common return temperature
sensor (B73) and the selectable comparative temperature, the return is diverted
through the lower section of the buffer storage tank. The function can be used for a
Recooling DHW/HCs
Recooling collector
2358A42