Siemens RVD240 - Setpoint of Room-Compensated Control; Setpoint of Weather-Compensated Control with Room Influence

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Siemens Building Technologies Basic documentation RVD240 CE1P2384en
HVAC Products 12 Function block Space heating 27.05.2004
12.4.3 Setpoint of room-compensated control
The setpoint is generated based on the deviation of the actual room temperature from
the setpoint. In addition, the heating curve at a fixed outside temperature of 0 °C is
taken into consideration.
2383B02
E
H
T
Vw
T
Rw
/ /
+10 K
-10 K
I
+50 K
-50 K
L
T
Rx
1
/
2
1
ss
0 °C
s
Generation of setpoint with room-compensated control
* Multiplier T
Rw
Room temperature setpoint
E Room influence T
Rx
Actual value of the room temperature
H Heating curve T
Vw
Flow temperature setpoint
I Integrator with limiter Operating line 5 Setting the heating curve slope
L Limiter Operating line 70 Setting the gain factor for room influence
s Heating curve slope Operating line 71 Setting the parallel displacement of the heating curve
12.4.4 Setpoint of weather-compensated control with room
influence
Here, in addition to the outside temperature and the room temperature setpoint, the
heating curve and the room influence act on the flow temperature setpoint.
2381B03
E
H
T
Vw
T
Rw
/ /
+50 K
-50 K
L
T
Rx
1
/
2
1
ss
T
AM
s
Generation of setpoint with weather-compensated control with room influence
* Multiplier T
Rw
Room temperature setpoint
E Room influence T
Rx
Actual value of the room temperature
H Heating curve T
Vw
Flow temperature setpoint
L Limiter Operating line 5 Setting the heating curve slope
s Heating curve slope Operating line 70 Setting the gain factor for room influence
T
AM
Composite outside temperature Operating line 71 Setting the parallel displacement of the
heating curve