Be sure to purchase from an AUTHORIZED DISTRIBUTOR to ensure you are receiving a 2-Year Warranty with your purchase Evergreen EM X-13 Direct Replacement Motors Evergreen EM X-13 Direct Replacement Motors...No programming required Designed to replace ALL X13 Style Constant torque ECM Motors. 5 discreet speeds available using 24VAC (3 using 18VDC) , always energized providing the ability to adjust airflow for faulty duct systems and designs. Fully encapsulated, one-piece design offers lower profile and easy installation. Bi-directional CW and CCW with rotation sensing technology.Need Help Identifying the Correct Component...Contact AirstarSupply