162/617
Building Technologies Division User Manual LMS14... CC1U7471en
6 The settings in detail 07.05.2014
6.5.24 Locking signals
Pump heating circuits receive locking signals from heat sources or locking signals
resulting from DHW heating. They are used to reduce or prevent heat consumption.
Critical locking signals
Locking signals from the heat source (protective boiler startup, maintained boiler return
temperature) are considered critical. If received, the heating circuit pump is immediately
deactivated.
Uncritical locking signals
Locking signals from DHW heating (shifting or absolute priority) are considered
uncritical.
Impact on the heating circuit pump:
State Effect
Locking signal ≤20% Normal pump operation
Locking signal >20% to 70% Heating circuit pump cycles. The cycling frequency is
dependent on the magnitude of the locking signal
Locking signal ≥70% Heating circuit pump cycles at a fixed rate (3 minutes
On/4 minutes Off)
Locking signal 100% Heating circuit pump Off
6.5.25 Forced signals
Pump heating circuits receive forced signals from the heat source (Boiler
overtemperature protection or Chimney sweep function). This means that heat
consumers can make use of forced signals to extend or enforce heat consumption.
6.5.26 Overtemperature protection for the mixing heating circuit
If the flow temperature exceeds the maximum flow temperature setpoint by more than
15%, the mixing heating circuit pump is deactivated. The pump is activated again when
the flow temperature drops below the maximum flow temperature setpoint.
Note!
This function is active only if the Temperature limiter function is not activated.
To Next Page
Loading...
Need help?
General
