Understanding Air Handlers: How They Work and Why They Are Important

Introduction

When it comes to maintaining a comfortable indoor environment, a key component of any HVAC system is the air handler. While often overlooked, the air handler plays a crucial role in distributing conditioned air throughout your home or office.

What is an Air Handler?

An air handler is a device that is responsible for circulating and conditioning the air in your HVAC system. It is typically located inside your home or office and is connected to the ductwork that distributes the air throughout the building.

The air handler consists of several important components, including a blower fan, heating and cooling coils, filters, and dampers. The blower fan is responsible for pulling the air into the system and pushing it through the ductwork. The heating and cooling coils are used to either heat or cool the air, depending on your desired temperature. The filters help to remove dust, pollen, and other particles from the air, improving indoor air quality. The dampers control the airflow and help to direct the conditioned air to different areas of the building.

How Does an Air Handler Work?

When your HVAC system is running, the air handler pulls the air from the return ducts, passes it through the filters to remove any impurities, and then sends it over the heating or cooling coils. If the air needs to be heated, the coils are warmed by a heat source, such as a furnace or heat pump. If the air needs to be cooled, the coils are chilled by an air conditioner or heat pump. Once the air has been conditioned, the blower fan pushes it back into the ductwork and distributes it throughout the building.

Why is an Air Handler Important?

An air handler is important for several reasons. First and foremost, it helps to maintain a comfortable indoor environment by distributing conditioned air. Without an air handler, the air produced by your HVAC system would not be able to reach all areas of your home or office, resulting in uneven temperatures and discomfort.

In addition to temperature control, an air handler also plays a role in improving indoor air quality. The filters in the air handler help to remove dust, pollen, and other allergens from the air, making it cleaner and healthier to breathe. This is particularly important for individuals with allergies or respiratory conditions.

Conclusion

While often overlooked, the air handler is a vital component of any HVAC system. It circulates and conditions the air, ensuring that your home or office remains comfortable and the indoor air quality is maintained. If you have any issues with your air handler, it is important to have it inspected and serviced by a professional HVAC technician to ensure optimal performance.