The company says its VLT® 2800 drive provides the inputs and outputs required by today's sophisticated hvac installations. Special features include adjustable carrier frequencies, automatic temperature compensation, selectable V/Hz switching patterns, and ground fault detection. Enclosures for both NEMA 1 and cabinet-mount installations are available. Quick disconnect terminal strips for both power and control terminals make installation and service easy, says the company.

- Graham, a division of Danfoss, Inc.