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Senior marketing engineer, Dennis Nelson has been with McQuay for 23 years. He specializes in applied air-handling equipment. For more information, call 800-432-1342 or visit www.mcquay.com.
In
the early days, variable-frequency
drives (VFDs) were not always reliable. We’re now light years away from the old, unreliable VFD technology. Today's VFDs are smaller, run cooler, are readily available, and their energy-saving performance in air-handling systems is well-known.