The Evergreen™ retrofit ECM blower motor gives contractors the ability to replace a PSC motor running on a 24-V thermostat with the ECM motor. The Evergreen AH is the first model available in the line ...

HVACR technicians have traditionally swapped out customers’ faulty blower motors with like motors, and, more often than not, those motors have been single-speed permanent split capacitor (PSC) units.