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Siemens Building Technologies
Basic Dokumentation RVA63.280, RVA53.280
CE1P2374E
Landis & Staefa Division
19.04.2001
Heating circuit
2.23
Parallel displacement of heating curve
Readjustment of room temperature setting, especially in plants without room sensor.
Produces a parallel displacement of the heating curve in order to achieve a better
match of heat generation and heat consumption.
Setting range
Unit
Factory setting
-4.5...+4.5
°C (K)
0.0
By changing the value entered, all room temperature setpoints will be appropriately
raised or lowered. This allows the room temperature setpoints to be matched to the
effective room temperatures.
If a nominal room temperature setpoint of 20 °C adjusted on the controller always
produces a room temperature of 22 °C, displace the heating curve downward by 2 °C.
Each setpoint readjustment, be it via the setting value or the operational level, is a
parallel displacement of the heating curve.
20
10
0
-10
-20
-30
90
80
70
60
50
40
30
°C
°C
24
0
6
D
0
2
100
0
10
10
0
30
TR
w
TA
TV
TV
Flow temperature
TA
Composite outside temperature
TRw
Room temperature setpoint
Benefit
Description
Setting
Effect
Example
Parallel displacement