MATelec HydroWHIZ FPC-63321-A Mild Steel 0.75 kW Variable Speed Three Pump Controller

Pressure boosting, water transfer and hot water circulation with three pumps are addressed by the HydroWHIZ FPC-63321-A, providing variable-speed regulation with level, pressure and temperature operating modes. The system utilises single-phase 230 Vac input to generate three-phase 230 Vac output, with a 0.75 kW VSD rating with speed adjusted according to system demand.

The control module executes duty sharing, rotation and staging as demand changes, with bumpless transfer ensuring smooth transitions. Additional pumps are brought into operation as demand increases to maintain the selected setpoint, then removed from service when they are no longer required. Sleep Assist Boost and Pipe Fill reduce pump cycling and gently pressurise empty pipelines, with proportional speed control for level or temperature and PID control for pressure.

Jacking pump control brings Pump 1 out of sleep first, activating the main pumps when demand increases. The IP44-rated mild steel enclosure with integral cooling fan and removable gland plate includes a colour touchscreen HMI for commissioning and diagnostics. The touchscreen provides system and individual pump status, operating modes, logged events and diagnostic functions.

Modbus RTU RS485 supports SCADA communication, and a common fault relay provides remote status indication. Protection features include high and low limits, no-flow and feedback-signal faults. VSD and system protection functions monitor operating conditions and provide configurable responses to faults such as overload, pressure, level, temperature, no-flow and feedback-signal conditions.

Features

• Padlockable main isolating switch allows the incoming power supply to be physically isolated during servicing and maintenance
• Pipe Fill gently builds pipe pressure during startup
• Integrated thermostatically controlled fan provides enclosure ventilation
• 4-20mA analogue input for hydrostatic level or pressure sensors
• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling
• Removable gland plate
• Pump anti-seize protection runs pumps periodically during low use to help prevent seizing