Siemens Albatros2 AVS37 User Manual Page 83

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Siemens Schweiz AG Basic units RVS61.843 and RVS41.813 CE1U2355en_02
Landis & Staefa Division The settings in detail 3. Juli 2008
In Protection mode, the room temperature is prevented from falling below a certain
level. This means that the frost protection setpoint of the room temperature will be
maintained.
Line no. Operating line
HC1 HC2 HC3P
720 1020 1320 Heating curve slope
721 1021 1321 Heating curve displacement
726 1026 1326 Heating curve adaption
The heating curve generates the flow temperature setpoint, which is used to maintain a
certain flow temperature depending on the prevailing weather conditions. The heating
curve can be adjusted via a number of settings, thus matching heat output and room
temperature to individual needs.
The steeper the heating curve slope, the greater the change of flow temperature at low
outside temperatures. In other words, if the room temperature is not correct at low
outside temperatures, but at higher outside temperatures, the heating curve slope
needs readjusting.
Increasing the setting: Raises the flow temperature, especially when outside
temperatures are low.
Decreasing the setting: Lowers the flow temperature, especially when outside
temperatures are low.
The set heating curve is based on a room temperature setpoint of 20 °C. If the room
temperature setpoint is adjusted, the heating curve adapts automatically to the new
value.
20 10 0 -10 -20
-30
90
80
70
60
50
40
30
°C
°C
4
3,5
3
2,75 2,5 2,25
2
1,75
1,5
1,25
1
0,75
0,5
0,25
100
2000D02
Parallel displacement of the heating curve is used to change the flow temperature
evenly across the entire outside temperature range or, in other words, if the room
temperature is always too high or too low, a readjustment must be made via parallel
displacement.
Adaption of the heating curve is used by the controller to automatically adapt the
heating curve to the prevailing weather conditions. It can only be switched on or off. In
that case, a readjustment of heating curve slope and parallel displacement is not
required.
Frost protection
Heating curve
Heating curve slope
Heating curve
displacement
A
daption
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