... control, but without the drawbacks of brushes. Without brushes to wear out, EC motors have design lives equal or longer than AC ... . GP ECM motors can be operated directly from AC mains supply (115V/230V/380V), or from DC(12V/24V/ ... to include features like data communications, constant volume control, variable speed, etc. 3/4hp high pressure large airflow evaporative air cooler EC electirc motor