RFC and DVF Cycling Refrigerated Compressed Air Dryers
Energy efficient operation is of paramount importance to any industrial machine and the process it supports. The RFC dryer line, with Ultrapulse control, and the DVF digital scroll series, offer the latest in energy-saving technology up to 2,000 cfm.

The Donaldson RFC Series dryers (200-650 cfm) operate a microprocessor-based controller to turn the refrigerant compressor on and off based on actual load conditions. The controller has been programmed to not only measure and respond to critical operating parameters, but to track (up to 8 times per second) and anticipate demand. This ability to proactively encounter load changes and adjust the operating cycle accordingly sets the RFC series dryers apart from the competition.

The Donaldson DVF Series Dryers (800-2,000 cfm) utilizes digital scroll compressors to modulate between 10% and 100% capacity. The microprocessor-controlled modulation provides a near linear power reduction when unloaded, which results in a highly consistent performance pattern during load variations. Using our patented Variable Flow aluminum block heat exchanger, the DVF dryers provide the high separation efficiency our customers have come to expect.

High –Capacity Cycling Refrigerated Compressed Air Dryers
The Donaldson RTM high-capacity cycling refrigerated compressed air dryers use multiple compressors with defined loading/unloading capacities and a thermal mass storage medium for energy-efficient operation. These dryers are ideally suited when large air volumes need to be dried to a reliable and constant dewpoint.