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Siemens Heating and D.h.w. Controller RVL481 CE1P2541en
Building Technologies 26 Function block "D.h.w. solar charging" 20.05.2008
26.2.8 Maximum limitation of charging temperature
Operating line 206 allows for setting the maximum limitation for charging temperature.
The collector pump is switched off if the maximum charging temperature in the storage
tank is reached.
T
ON
OFF
TSpMax
t
2541D12
1 K
TSp
TSp Storage tank temperature
TSpMax Maximum limitation of the charging temperature-
ON/OFF Collector pump
T Temperature
t Time
• Charging is stopped if the storage tank temperature exceeds the maximum limita-
tion:
TSp > TSpMax
• Charging is again released if the storage tank temperature drops below the maximum
limitation by 1 K:
TSp < TSpMax – 1 K
The collector overheating protection function can again activate the collector pump until
the storage tank temperature maximum limitation is reached.
26.2.9 Storage tank temperature maximum limitation
Operating line 207 allows for setting the d.h.w. storage tank temperature maximum
limitation.
The storage tank is never charged in excess of the set temperature (refer to
section "26.2.5 Collector temperature to protect against overheating").
The storage tank maximum limitation function is not a safety function!
Note
Caution
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