An HVAC blower motor that uses an electronically commutated motor (ECM) to adjust airflow speed continuously rather than operating at a single fixed speed. This allows the system to match airflow precisely to current heating or cooling demand.
An HVAC blower motor that uses an electronically commutated motor (ECM) to adjust airflow speed continuously rather than operating at a single fixed speed. This allows the system to match airflow precisely to current heating or cooling demand.
Variable speed blowers improve comfort by maintaining steadier temperatures, reducing humidity more effectively, and operating at lower noise levels during partial-load conditions. They use 60-75% less electricity than single-speed motors and are required in most high-efficiency (16+ SEER) systems.
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