Though the weather outside may be unpredictable with frigid winters and sweltering summers, you can almost always count on a consistently pleasant temperature when you step inside. There may be minor fluctuations in a commercial building’s temperature, but chances are they don’t even compare to the changes happening outside.

This reliability is likely due to a building’s HVAC system, working tirelessly to maintain clean and temperate air. A major component of this HVAC system is the Air Handler Unit, which we will examine in more detail to understand exactly why it’s key to an effective commercial ventilation system. 

What is an Air Handler Unit?

An Air Handler Unit, or AHU, is an essential component of a commercial heating, ventilating, and air-conditioning (HVAC) system. It is used to regulate and circulate air that enters from outside a building, in order to heat, cool, and filter as needed. Each time a door is opened or people enter a room, new air is introduced to the indoors that must be managed and maintained. This is done by an air handler. Air handlers can take many forms and vary in size, complexity, and capabilities depending on the area it serves.

How does it work?

An AHU is made up of 3 main components that are all interconnected: 

• Air filter
• Blower
• Coils

These three simple pieces comprise the entire air handler unit, and work in unison to monitor air quality. An air handler is often compared to the lungs of a human being, working to take air in, alter its composition, and release it back into space. Here’s how it works: The air filter works to sort particles out of the air. The blower then takes this clarified air and passes it along the coils. Finally, the coils either heat or cool the air depending on the buildings’ needs. 

What are the benefits? 

Since Air Handler Units have large size and capability variations, they can be used either for a single space or an entire building. When utilized for a commercial-sized building, they are often placed either in the basement or on the roof. From here, the air handler unit can be assigned to certain areas of a building to provide heating or cooling as needed. For example, one AHU can be directed towards Floors 1-5, while another could be directed towards the right side of the building specifically. This process allows for one centralized unit to provide necessary air circulation services for a specified space. 

If your commercial building is in need of a new Air Handler Unit, we’re here to help. Many churches, schools, daycares and community-based organizations qualify for a no-cost site inspection. Get in touch today! 703.891.4600.