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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.23.21 Setpoint compensation
Line no. Operating line
6116 Time constant setp compens
Here, the time constant for central setpoint compensation can be set.
Note!
In the case of fast-acting boilers, this time constant should always be set to 0 min.
Line no. Operating line
6117 Central setp compensation
Central setp compensation matches the setpoint of the heat source to the required
central flow temperature. The setting limits the maximum readjustment, even in cases
where greater adaption would be required.
Note!
This function can be implemented only when using sensor B10.
Line no. Operating line
6118 Setpoint drop delay
A negative change of setpoint at the common flow is forwarded to the heat sources
according to a ramp.
This prevents multistage heat sources from shutting down prematurely, or freely
modulating heat sources from shutting down immediately due to their load control.
Since the demand for heat continues to exist, the heat sources would resume operation
soon after cooling down.
Temperature
Time
Setpoint heat source
dT
dt
Drop out delay time
dT/dt
7471d47e/0111
Figure 96: Building room model – setpoint compensation
Note!
The drop out delay time is only active in the event of setpoint changes, but not when
there is no more request for heat.
Time constant setp
compens
Central setp
compensation
Setpoint drop delay
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