modelDownStartWithoutOn

Validate sequence of starting the staging down process which does not require enabling a chiller
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Information

This example validates Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.DownStart. It shows the beginning steps when the plant starts staging down. In this example, the staging down process does not require enabling one chiller and disabling another chiller.

It stages from stage 2, which has both chiller 1 and chiller 2 enabled, down to stage 1 which only has chiller 1 enabled.

  • The staging process begins at 180 seconds. Before the moment, the chiller 1 and 2 are enabled.
  • Since 180 seconds, the staging down process starts. The chiller 2 becomes disabled and its demand becomes 0.

The chiller head pressure control, the chilled water isolation valve and the chilled water minimum flow setpoint will be controlled in the down process after this down beginning process.

Components

TypeNameDefaultDescription
Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.DownStartstaStaDowChiller stage down when the process does not require one chiller on and another chiller off

Revisions

  • September 26, 2019, by Jianjun Hu:
    First implementation.