Description | Traditional
solution | New Standard
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Control, VVC plus,
way an adjustable frequency drive and variable speed pump respond to
the system curve is shown in the diagram. The control curve shows
the actual operation points of the secondary pump with variable
speed control. The setpoint is the amount of pressure that must be
maintained, at the sensor location, even at zero flow, to satisfy
system requirements such as minimum pressure differential to operate
the coils and control valves. The lower the setpoint, the greater
the potential savings, as shown in the diagram. More...
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