167/218
Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of OEM settings 26.03.2001
Due to the deactivation of the pumps, heat consumption will be reduced. This reduces
considerably the boiler water's heating up time.
• Heating circuit pump:
Status Effect
Locking signal > 0 % Heating circuit pump OFF
Locking signal = 0 % Normal pump operation
• D.h.w. pump:
Status Effect
Locking signal < 50 % D.h.w. pump OFF
Locking signal < 50 % Normal pump operation
• System pump
Status Effect
Locking signal > 5 % System pump OFF
Locking signal < 0 % Normal pump operation
Through the generation of the temperature-time integral it is not only the period of time
that is considered, but also the extent of return temperature undershoot. This means
that when the crossing is significant, the pumps will be deactivated earlier.
Due to the lowering of the setpoint, heat consumption will be reduced. This reduces
considerably the boiler water's heating up time.
• Mixing valve:
Status Effect
Locking signal > 0 % Flow temperature setpoint will be lowered.
The extent of lowering is dependent on the magnitude and the period
of time of return temperature undershoot.
Locking signal reduced to 0 % Setpoint according to the normal control condition
Through the generation of the temperature-time integral it is not only the period of time
that is considered, but also the extent of return temperature undershoot. This means
that when the undershoot is significant, the setpoint reduction will be greater.
Impact on 2-position
loads
Switching point
Impact on modulating
loads
Lowering of setpoint
To Next Page
Loading...
