Description

The Variable Frequency Drive (VFD) Municipal Water Booster System was designed to be the next step forward in Municipal Water Booster Systems. This serves as a reliable alternative to the existing bladder tank pressurization systems.

The VFD Municipal Booster System utilizes a Variable Frequency Drive motor controller in lieu of a contactor and thermal overload. The system is also equipped with a pressure transducer which senses the pressure on the outlet/discharge side of the pump which will maintain the pressure programed into the controller. Once the system is set-up at the final site, it must be calibrated before use. This procedure is included with each system.

Once installed and calibrated, the system will adjust and maintain the preset pressure required for adequately running the RO system and the regeneration cycles of the media tanks. The pressure sensor continuously transmits an electronic signal to the VFD motor controller, which then accelerates or decelerates the pump in an attempt to maintain the preset pressure. This speed adjustment is accomplished by varying the frequency of the power going to the motor on the pump, which in turn controls the speed (RPM revolutions per minute) at which the motor, and therefore the pump, turns. The motor/pump RPM controls the amount of pressure and flow the pump produces.

This allows the pump to operate when the R.O. turns on, or when a pre-treatment component (such as a media tank) goes into backwash and/or regeneration. This tight control all but eliminates pressure spikes when the R.O. turns off, and also prolongs the life of the Municipal Boost pump and motor.

The VFD Municipal Boost system is designed to convert single phase 220 volts into three phase, using one third of the energy required by the existing pump systems. This moves the SWT Municipal Boost System forward into the next generation of pretreatment equipment.