Boiler temperature influence on the stand-pipe temperature calculation
If the temperature of the solid fuel boiler drops below the minimum boiler temperature,
then the calculated stand-pipe temperature begins to decrease proportionally. In case,
that the boiler temperature exceeds the so called protection limit, then the controller pro-
portionally increases the calculated stand-pipe temperature. This way the overheating of
the boiler is prevented, and the heat excess is conducted into the building. The protection
limit is calculated with dependence to outdoor temperature and lies between minimum
boiler temperature + 15 K and the parameter S5.14 value. In the night heating interval the
room temperature is automatically increased, if the solid fuel boiler temperature is higher
than the set minimum boiler temperature + 6 K and reaches the day temperature, if the
boiler temperature is equal or higher than the setting of parameter S5.14.
The boiler protection is activated, if the boiler temperature exceeds the maximum set boil-
er temperature - parameter S5.9. At this time for the stand-pipe temperature the maxi-
mum stand-pipe temperature value is taken - parameter 2.7. The protection is deactivat-
ed, when the temperature drops below the maximum temperature.
Heat accumulator temperature influence on the stand-pipe temperature calculation
If the temperature of the heat accumulator drops below the minimum heat accumulator
temperature - parameter 5.10, the calculated stand-pipe temperature begins to decrease
proportionally. If the heat accumulator temperature exceeds the maximum heat accumu-
lator temperature - parameter 5.9, the heat accumulator overheating protection is activat-
ed. At this time for the stand-pipe temperature the maximum stand-pipe temperature val-
ue is taken - parameter 2.7. The protection is deactivated, when the temperature drops
below the maximum temperature.
Return-pipe temperature sensor influence on the stand-pipe temperature
calculation
Whenever the return-pipe temperature sensor for the mixing heating circuit is used, the
day time heating interval algorithm is changed in a way to regulate the average tempera-
ture of the heating bodies. With this function a faster rise of the room temperature in tran-
sition from night to day heating interval is achieved.
Boiler return-pipe temperature sensor RLKF influence on the stand-pipe tempera-
ture calculation
Whenever the boiler return-pipe temperature RLKF - parameter S1.3=1 is used and the its
temperature drops below the minimum boiler return-pipe temperature - parameter S5.4,
the calculated temperature for the stand-pipe decreases proportionally.
Floor temperature sensor influence on the stand-pipe temperature calculation
Whenever the floor temperature EF - parameter S1.3=3 is used and its temperature ex-
ceeds the maximum floor temperature - parameter S2.11, the calculated temperature for
the stand-pipe decreases proportionally.
Constant stand-pipe temperature
If you need the constant stand-pipe temperature control, set parameters S1.8 and S1.9.
Service settings manual
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