Staging control for variable speed pumps
This model implements a simple staging control logic for variable speed pumps.
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When the mass flowrate in each pump is greater than a threshold,
and the speed signal is greater
than a threshold, then activate one more pump;
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When the mass flowrate in each pump is less than a threshold,
or the speed signal is smaller than a threshold,
then deactivate one more pump.
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December 30, 2022, by Kathryn Hinkelman:
Added an on input for a plant-level override to turn pumps off.
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September 11, 2017, by Michael Wetter:
Revised switch that selects the operation mode for
issue 921
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July 30, 2017, by Yangyang Fu:
First implementation.
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