The word “variable speed” refers to the blower motor that is inside your air handler or furnace. It is an ECM (electronically commutated motor). An ECM’s are types of DC motors that function with a built-in inverter and a magnet rotor. Together, these components can achieve higher levels of efficiency than most of the AC motors being used today.
An ECM is an energy efficient, low-maintenance option and it can help to reduce your overall operating costs. While buying a furnace that already has an ECM is going to be higher than a furnace without this feature, the ROI for the variable speed feature is only four to five years.
How Does the Variable Speed Motor Work?
Unlike the conventional fan motors, a variable speed blower motor runs at various speeds to provide precise control regarding the flow of cooled or heated air throughout the home. Improved airflow control results in a better balance of the humidity and temperature inside.
By using advanced technology, this motor will constantly monitor the data that comes from the heating and cooling system. With this data, automatic adjustments can be made to meet your unique comfort needs. It works to vary the amount of circulated air, working to compensate for factors such as blocked vents or dirty air filters by increasing the unit’s fan speed.
An added bonus of the VS motor is that it will gradually increase until full speed is reached. This also helps to eliminate the sudden and noisy blast of air that is related to traditional furnace motors. It also helps to reduce the stress put on the mounting hardware. While in the cooling mode, it helps the AC remove even more moisture from the air.
Specific Benefits Offered by VS Motors
With a VS motor, you can achieve improved air quality, sound, efficiency, and comfort. More specific benefits include:
- Precise control of airflow to offer improved temperature control, air distribution, and humidity control. Higher precision results in higher levels of comfort.
- A VS speed furnace will perform better and use approximately 66 percent less electricity. In the cooling mode, the VS system can result in an efficiency gain of approximately 1 SEER. The higher the SEER rating rises, the lower your utility bills will be.
- A VS air handler or furnace provides quieter operation.
- Improves the cleanliness of the air in your home.
When it comes to a variable speed motor, there are several benefits offered. If your HVAC technician has recommended this installation, it’s a good idea to consider it. While you must make an initial investment, over time, the benefits offered will more than pay for themselves.
Work with your technician to ensure the highest-level efficiency for your home can be achieved. This will ensure that you get the most for your money when it comes to your AC and furnace and overall energy efficiency levels. Contact Beebe HVAC today for help.