Reftronix recommend the Invertek variable frequency drive (VFD) to fully harness the energy efficient performance of BLDC (Sensorless Brushless Direct Current) / PM (Permanent Magnet) motors. The drive works in conjunction with the Reftronix controller to modulate compressor speed and consequently unit cooling capacity. Variations in load are managed precisely combined with constant control of the compressor envelope.
The invertek drive is fully integrated with the Reftronix controller. All setup, monitoring, alarms, and detailed fault diagnostics, are accessible from the controller webpage and the cloud link.