Variable Frequency Drives and Electrically Commutated Motors

Evaluate motors for compatibility with variable frequency drive (VFD)

Analyze load profile and source equipment for use of VFD to provide variable ventilation rates

Replace motor and/or starter per the manufacturer's specifications and in compliance with applicable codes

If using a sensor-controlled strategy, install feedback sensors in accordance with manufacturer specifications at locations that will optimize the chosen control strategy

Install manual controls in accordance with manufacturer specifications at a location easy to access for continued operation

Set VFD and/or ECM parameters to accept feedback from sensors dependent upon chosen control strategy

Optimize system to meet design ventilation rates at the lowest possible speed setting.