05.07.13If comfortable and energy-efficient air conditioning are highly-valued commodities in your South Florida home, upgrading to a high-efficiency air conditioner with an electronically commutated motor is the ideal choice for you. 

Inside an electronically commutated motor

An electronically commutated motor (ECM) is a brushless motor with the unique capability to “intelligently” vary airflow output to match real-time cooling needs of a home (and heating when installed inside heat pumps). These are the benefits of an ECM upgrade:

  • Energy savings: The ECM’s ability to vary airflow based on real-time cooling requirements results in reduced electricity consumption by up to 80 percent over permanent-split-capacitor (PSC) motors in conventional air-conditioning systems.
  • Greater comfort: The ECM’s cooling cycle is much longer and averages much lower capacities than PSC motors, which cycle continuously at full capacity. Longer cooling cycles with slower air speed result in even distribution of conditioned air through the living spaces, lower humidity during South Florida’s cooling months and comfortable temperatures much closer to the thermostat set point for minimal hot/cold swings.
  • Improved indoor air quality: Longer cooling cycles mean that indoor air is circulated through the air filter or ducted air cleaner many more times. More air filtration results in better indoor air quality with fewer respiratory irritants, such as pollen, viruses, mold, and pet dander.
  • Quieter operation: ECMs are quiet workhorses that utilize soft starts and stops, and slowly ramp up to match airflow to cooling needs. By averaging slower airflow speeds for the duration of the cooling cycle (compared to PSC motors), much less noise is produced.
  • Durable design: Factors that contribute to greater motor durability and longer lifespan of ECMs over PSC motors are the brushless design and slower start, stop and cooling-cycle speeds. The brushless design produces less friction resulting in less wear and tear and greater efficiency than PSC motors. Other components, like the mounting hardware, undergo less stress and wear, too.

For more information about the electronically commutated motor, contact Robert R. McGill Air Conditioning today. We’re a family-owned and operated company, providing service for homeowners in Northern Broward, Eastern Palm Beach and Southern Martin counties.

Our goal is to help educate our customers in Palm Beach County, Florida about energy and home comfort issues (specific to HVAC systems). 

Image courtesy of Shutterstock

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