.Buildings.DHC.Plants.Combined.Controls.BaseClasses.ModeHeatRecoveryChiller

Information

This block computes the command signals to the HRCs to initiate the switchover into either cascading cooling mode (with the evaporator indexed to the CHW loop and the condenser indexed to the CW loop) or direct heat recovery mode (with the evaporator indexed to the CHW loop and the condenser indexed to the HW loop). Switching a HRC to cascading cooling mode is done starting from the unit nearest to the CW interconnection, that is the unit with the highest index. Switching a HRC to direct heat recovery mode is done starting from the unit nearest to the CW interconnection and that is not operating in cascading cooling, that is the unit with the highest index below the lowest index of HRCs operating in cascading cooling mode.

Revisions

• February 24, 2023, by Antoine Gautier:
  First implementation.