MATelec HydroWHIZ FPC-63421-B Mild Steel 1.5 kW Variable Speed Four Pump Controller

Pressure boosting, water transfer and hot water circulation with four pumps are addressed by the HydroWHIZ FPC-63421-B, offering 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 1.5 kW VSD rating matching motor speed to system demand.

Control logic allows selection between level, pressure or temperature modes, with staggered pump starting reducing excessive current draw and water surge or hammer. 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 wakes Pump 1 first, activating additional pumps when demand increases.

Proportional speed control responds to level or temperature changes, with PID control maintaining steady pressure. The IP44 mild steel enclosure with thermostatically controlled fan includes a colour touchscreen HMI, pump circuit breakers and a padlockable isolator.

Modbus RTU RS485 enables SCADA communication, and a volt-free common fault relay provides remote status indication. Configurable protection covers 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

• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling
• Pipe Fill gently fills empty lines and shuts down if pressure cannot be built within 10 minutes
• 4-20mA analogue input for hydrostatic level or pressure sensors
• Configurable low-pressure and no-flow protection
• Removable gland plate
• Colour touchscreen HMI provides immediate access to diagnostic pages and parameter configuration
• Padlockable main isolating switch allows the incoming power supply to be physically isolated during servicing and maintenance