MATelec HydroWHIZ FPC-63220-G Mild Steel Three Phase 7.5 kW Variable Speed Two Pump Controller

Pressure boosting, water transfer and hot water circulation with two pumps are handled by the HydroWHIZ FPC-63220-G, providing variable-speed regulation with level, pressure and temperature operating modes. Its 7.5 kW VSD rating runs from a three-phase 400 Vac supply, with speed adjusted according 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. Sleep Assist Boost and Pipe Fill reduce pump cycling and gently build pipe pressure during startup, with staggered starting reducing excessive current draw and water hammer.

Housed in an IP44 mild steel cabinet with integral cooling fan and removable gland plate, the panel includes individual motor circuit breakers, a padlockable mains isolator and a colour touchscreen HMI with logged data and diagnostics. The touchscreen provides system and individual pump status, operating modes, historical faults and run hours. A volt-free common fault relay provides BMS signalling, and Modbus RTU RS485 supports SCADA integration.

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. Pump limiting can be configured where maximum flow or power requirements need to be kept within defined system limits.

Features

• Built-in Modbus RTU RS485 connection enables SCADA integration
• Integral cooling fan operates thermostatically to provide enclosure ventilation
• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling
• 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
• Pipe Fill gently builds pipe pressure during startup
• User setup and diagnostics managed through colour touchscreen HMI