MATelec HydroWHIZ FPC-63420-I Mild Steel Three Phase 15 kW Variable Speed Four Pump Controller

Pressure boosting, water transfer and hot water circulation with four pumps benefit from the HydroWHIZ FPC-63420-I, which delivers variable-speed regulation with level, pressure and temperature operating modes. Its 15 kW VSD rating runs from a three-phase 400 Vac supply, with speed adjusted according to system demand.

Duty rotation balances run hours across all four pumps, while bumpless transfer ensures smooth transitions between active drives. Additional pumps are brought into operation as demand increases to maintain the selected setpoint, then removed from service when they are no longer required. In pressure-control modes, Pipe Fill builds line pressure while jacking pump control brings Pump 1 out of sleep first, activating additional pumps when demand increases.

Proportional speed control responds to level or temperature changes, with PID control maintaining steady pressure. Housed in an IP44-rated powder-coated mild steel enclosure with removable gland plate and cooling fan, the panel includes a colour touchscreen HMI, pump circuit breakers and a padlockable isolator. The touchscreen provides system and individual pump status, operating modes, logged events and diagnostic functions.

A volt-free common fault relay provides BMS signalling, and Modbus RTU RS485 supports SCADA integration. 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

• Jacking pump control brings Pump 1 out of sleep first, with the main pumps starting when it can no longer keep up with demand
• Removable gland plate
• Padlockable mains power isolator switch allows the incoming power supply to be physically isolated during servicing and maintenance
• Pump anti-seize protection runs pumps periodically during low use to help prevent seizing
• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling
• 4-20mA analogue channel for continuous sensor feedback and process monitoring
• Built-in Modbus RTU RS485 connection enables SCADA integration