This model validates
Buildings.Templates.Plants.Controls.Pumps.Generic.ControlDifferentialPressure
in a configuration with two pumps and two remote DP sensors that
either are hardwired to the controller (component
ctlDpRem) or are not hardwired to the controller,
which uses a local DP sensor instead (component
ctlDpLoc).
The simulation of this model shows that when any pump is proven
on, the controller is enabled and its output is initially set to
the minimum pump speed y_min. The minimum pump speed
sets the lower limit of the controller output for the entire time
that the controller is enabled. The output of the controller
ctlDpRem is driven by the most demanding remote DP
control loop, e.g., the controller output only drops when both loop
input measurements are above setpoints. Without remote sensors
hardwired to the controller, the pump speed is driven by the
highest local DP setpoint.
When no pump is proven on, the controller is disabled and its output is set to 0 %.