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For the past few years, Mainstream has been at the forefront of the fan array revolution, and we have seen the vast majority of our customers, at our recommendation, make the switch to electronically commutated (EC) motors. The benefits are significant and tangible, and it’s hard to find any drawbacks.
Space is always at a premium, particularly in retrofit or replacement applications. EC fans enable us to reduce the depth of fan sections, which increases our flexibility, and enables us to match tight footprints.
EC fan arrays can be sized to include n+1 redundancy, ensuring mission-critical AHUs are able to run at full speed even in the event of a failure. The direct drive design eliminates the need for replacement belts, shafts, and alignment.
Already an inherently quiet design, EC fans can be selected to run at lower speeds to reduce noise as needed, in sound-sensitive environments.
Mainstream’s panel design makes installing a fan array in any AHU extremely simple. The light weight and compact profile of the fans means they can be easily transported through small openings or passageways.
EC motors meet the requirements for efficiency class IE5, the equivalent of NEMA Ultra Premium Efficiency
An integrated inverter in each motor eliminates the need for expensive, inefficient VFDs, and greatly simplifies the control and communication wiring.
