.Buildings.DHC.ETS.Combined.Controls.Reset

Information

This block implements the supervisory reset of the heating water supply temperature. The heating water supply temperature is reset down whenever the heating demand signal yielded by the building automation system is false. This enables operating the chiller at a reduced lift whenever there is no requirement on the water temperature supplied to the building system.

Note that the chilled water supply temperature is not reset for the sake of simplicity. It would indeed require a more involved algorithm preventing the reset in case it limits the cold rejection capacity considering the actual district water temperature.

Revisions

• March 6, 2025, by Hongxiang Fu:
  Renamed variables for generality so that this block could be used for both heating and cooling.
  This is for #4133.
• July 31, 2020, by Antoine Gautier:
  First implementation.