Siemens RVP201 Basic Documentation page 17

Siemens
Building Technologies
T
V
110
100
90
80
70
60
50
40
30
20
20 10
Heating curve chart
S Slope
T Composite outside temperature
AM
T Flow temperature
V
The heating curve has a fixed tilting point at an outside temperature of 22 °C and a flow
temperature of 20 °C. The heating curve slope can be infinitely set around this point in
the range 0.25...4.
The substitute line of each heating curve runs through the tilting point and intersects
"its" heating curve at an outside temperature of 0 °C. Its slope is calculated as follows:
s = T : T and is adjusted on the controller.
V AM
The substitute lines are needed because the heating curve is slightly inflected. This is
required to compensate for the non-linear characteristics of the different types of radia-
tors and convectors.
The basic setting is to be made in agreement with the planning documentation or ac-
cording to local practices.
The heating curve is based on a room temperature setpoint of 20 °C.
Heating controllers RVP201 and RVP211
3 Technical design
S =
4 3,5 3 2,75
0 -10 -20
2,5 2,25
2
1,75
1,5
1,25
1
0,75
0,5
0,25
T
-30
AM
CE1P2464en
2017-07-21
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