MATelec HydroWHIZ FPC-63321-C Mild Steel 2.2 kW Variable Speed Three Pump Controller

Pressure boosting, water transfer and hot water circulation with three pumps are managed by the HydroWHIZ FPC-63321-C, 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 2.2 kW VSD rating matching motor speed to system demand.

Coordinating pump control, the controller provides automatic duty alternation and bumpless transfer to rotate duty pumps and stagger startup cycles. 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 build pipe pressure during startup, with staggered start-stop delays reducing water surge.

Proportional speed control handles level and temperature regulation, while PID control responds to pressure changes. Housed in an IP44-rated powder-coated mild steel enclosure with removable gland plate and cooling fan, the panel includes a colour touchscreen HMI.

Modbus RTU RS485 provides SCADA connectivity, and a volt-free common fault relay delivers remote alarm signalling. 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

• Sensor loops and internal low-voltage controls guarded by a dedicated circuit breaker
• Integrated thermostatically controlled fan provides enclosure ventilation
• Pipe Fill gently builds pipe pressure during startup
• Dedicated BMS volt-free common fault relay output for remote system warning signals
• Integrated RS485 serial communication supports Modbus RTU for SCADA connection
• 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