Davey Speedman Dual Pump Variable Speed Pump Control System - Manual (Page 6)

6
System Operation
The operating constraints for the system are detailed below.
When the system pressure drops below the SYSTEM CUT IN pressure setting, the Speedman will start the
VSD to run the first pump and increases in speed until the SET POINT PRESSURE is reached. If one pump
cannot satisfy the pressure requirement another pump will start. The VSD pump will continue to run until the
SET POINT PRESSURE is achieved. This procedure is repeated until the set point is reached or all pumps are
running. The controller will modulate the speed of the VSD pump to maintain the set point pressure.
CANCELLING AUDIBLE BEEPER
If during commissioning you wish to cancel the BEEP heard on key strokes go to the “Flow-Rate Vsd-Sp”
menu and press *
HIGH PRESSURE SHUTDOWN
HIGH PRESSURE LIMIT
SET POINT PRESSURE
SYSTEM CUT IN PRESSURE
LOW PRESSURE SHUT DOWN