.Buildings.Applications.DataCenters.ChillerCooled.Controls.ConstantSpeedPumpStage

Information

This model describes a simple staging control for two constant-speed pumps in a chilled water plant with two chillers and a waterside economizer (WSE). The staging sequence is shown as below.

• When WSE is enabled, all the constant speed pumps are commanded on.
• When fully mechanical cooling (FMC) mode is enabled, the number of running constant speed pumps equals to the number of running chillers.

Revisions

• September 11, 2017, by Michael Wetter:
  Revised switch that selects the operation mode for issue 921
• September 2, 2017, by Michael Wetter:
  Changed implementation to use Buildings.Applications.DataCenters.Types.CoolingModes.
• July 30, 2017, by Yangyang Fu:
  First implementation.