Locking Signals; Forced Signals - Siemens LMS14 User Manual

Albatros2 boiler management unit
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6.5.29 Locking signals

Mixing heating circuits receive locking signals from the heat source (protective boiler
startup, maintained boiler return temperature) or locking signals resulting from DHW
heating with priority (shifting, absolute).
With a valid locking signal, the amount of heat drawn is reduced resulting from the
decrease of the flow temperature setpoint. This shortens considerably the heating up
time for DHW, with minimum impact on the heating circuits.
The mixing heating circuit pump is deactivated when the locking signal stays at 100%
for more than 10 minutes. It is activated again as soon as the locking signal drops
below 100%.
Impact on the mixing valve:
State
Locking signal >0%
Locking signal reduced to 0%

6.5.30 Forced signals

Mixing 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.
User Manual LMS14...
6 The settings in detail
Effect
Flow temperature setpoints is lowered.
The extent of lowering is dependent on the magnitude
and the period of time of undershoot
Setpoints according to the normal control condition
CC1U7471en
07.05.2014

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