Siemens RVD230 - Setpoint of Room-Compensated Control; Setpoint of Weather-Compensated Control with Room Influence

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Siemens Building Technologies Basic Documentation RVD230 CE1P2383en
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 TRw Room temperature setpoint
E Room influence TRx Actual value of room temperature
H Heating curve TVw Flow temperature setpoint
L Limiter Operating line 5 Adjustment of heating curve slope
I Integrator with limitation Operating line 70 Adjustment of gain factor of room influence
s Heating curve slope Operating line 71 Adjustment of parallel displacement of 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 and room influence
* Multiplier TRw Room temperature setpoint
E Room influence TRx Actual value of room temperature
H Heating curve TVw Flow temperature setpoint
L Limiter Operating line 5 Adjustment of heating curve slope
s Heating curve slope Operating line 70 Adjustment of gain factor of room influence
T
AM
Composite outside
temperature
Operating line 71 Adjustment of parallel displacement of heating
curve