What is ECM in HVAC?
Also asked, what is the difference between a PSC and ECM motor?
The big difference between the two models is that the PSC motor has one speed: full speed. Any time that the blower is on it blows at full force. The ECM model is a variable speed unit that will adjust the airflow to optimal levels based on the desired temperature of the home.
One may also ask, how does a variable speed ECM motor work? A variable-speed furnace includes a type of blower motor called an electronically commutated motor (ECM). These are DC motors that contain a magnet rotor and built-in inverter that cause them to run more efficiently than AC motors. When your traditional furnace runs, the fan motor blows at a constant speed.
Also to know is, how much does an ECM motor cost?
HVAC Blower Parts Cost
|ECM Motor Module||$230-$830|
Are ECM motors reliable?
Not only are they simple and inexpensive, but they've proven to be an extremely reliable component. The average lifespan of a PSC motor is around 40,000 hours, though an ECM surpasses it at 90,000 hours.