If you're like most business owners, you'll understand how managing a facility's indoor environment is no less than a challenge because in the US, much like our winters, our hot and humid summers can be extreme too! And if the weather is sweltering hot, as a facility manager/business owner, you want to make sure your facility's indoor air stays cool throughout the day and ensure a good, comfortable experience for your customers and employees. This is why investing in an air handler is not a choice but a necessity.

Not sure what they are, and you feel lost? Don't worry; here is a complete guide covering everything, from what exactly is an air handler to which one would be the best pick for your facility.

What Is An Air Handler?

An air handler unit, often abbreviated to AHU, is a device used to regulate and circulate air as part of an HVAC system, usually through the ductwork ventilation system. They are the “lungs” of your facility. In most cases, these units are installed on the roof of buildings and circulate air to each room through ducts. However, these units are located in the attic, basement, or a dedicated closet in residential settings. This large metal box contains heating or cooling elements, a blower, filter racks or chambers, sound attenuators, and dampers.

Parts of an Air Handler


One of the most crucial refrigeration cycle components is the indoor coil.

  • In Summers: The coil is cold and removes humidity as the indoor air passes over it.
  • In Winters: The coil is warm and transfers heat to the air that passes over it.

Blower Motor

A blower motor is responsible for moving the air to the connected ductwork to circulate it into your indoor spaces. It could be a single-speed, multi-speed, or variable speed model.

  • Single-speed: Models with single speed only operate at one fixed speed that can be cycled on and off, as required by a thermostat or control system.
  • Multi-speed: These motors can operate at multiple speeds, depending on the demand, which gives more controlled humidity levels, sustained comfort, and energy efficiency.
  • Variable-speed: Models with variable-speed motors can change the fan speeds to precisely control the flow throughout your home based on your requirements.

Air Supply and Return Plenum Connections

A plenum connection is used to connect ductwork with your air handler, which is used to:

  1. "Supply" the conditioned heated or cooled air to your interior spaces
  2. "Return" the air to the unit that needs to be conditioned (heated or cooled)


They are used to minimize the number of particles entering the Air Handler Unit through your home's indoor air to protect the unit.

Benefits Of Air Handlers

1- Efficient in Cooling Large Areas

Cooling or heating larger areas can be a daunting task for an HVAC system and can put a lot of pressure on the system. This can also take a toll on the efficiency of the system. Therefore, equipping your HVAC system with an air handler can offer improved results and more efficient performance of the unit. An air handler will also ensure less stress on the HVAC system resulting in fewer breakdowns and reduced electricity bills.

2- Able to Condition Multiple Zones, Easily

If you're a facility owner and have a multifamily property, your HVAC system might not be sufficient to condition the air for multiple zones.

Installing an air handler unit can ensure that every corner of your space receives an adequate amount of cold or warm air. This is because they are generally more powerful than other air conditioning systems. They are also comparatively cost-effective as they cover more area so that you don't need to invest in several mini-splits or PTACs.

3- Specially Designed for Commercial Areas

Most commercial facility owners prefer air handlers as these units are most suitable for commercial settings because of their centralized route of operation, energy efficiency, ease of installation, and accessible maintenance.

4- Ease of Maintenance

These units are easy to maintain since they are installed on the exterior of a building and are easily accessible.

Buy Best Air Handler | Goodman

Goodman is one of the leading HVAC brands that make high-quality and reliable air handler units. The company offers an extensive superior range of units with different motors and capacity options for residential and commercial purposes. Regardless of which unit you buy, the durable cabinet is built to outlast everyday wear and tear.

Our best pick?

Goodman (AVPEC59D14) 4.0T - 5.0T Variable Speed Air Handler, With ECM Motor

Goodman's AVPEC air handler provides effective air distribution for facilities of nearly all shapes and sizes. It includes a newly redesigned all-aluminum evaporator coil, thermoplastic drain pan, variable-speed fan motor, and internal thermostatic expansion valve. These cutting-edge components improve the efficiency of your system and the consistency of your comfort. If you're looking for perfect air circulation, look no further than Goodman's AVPEC air handler.

Product Features

  • ComfortNet Communicating System compatible
  • CFM indicator
  • Provides constant CFM over a wide range of static pressure conditions independent of the duct system
  • Cooling Cap. (BTU/h) - 48,000
  • Voltage - 208/230V
  • Weight (LB) - 160
  • Standards and Certifications - ETL, AHRI, ISO
  • Warranty - All parts (5 YEARS)

If you are looking to buy Goodman (AVPEC59D14) 4.0T - 5.0T Variable Speed Air Handler, With ECM Motor for its durability, effortless performance, and enhanced comfort in your facility, head to our online store or call us at (877) 776-8228 for the best price, quick delivery, and installation service.

ProServices Supply

ProServices is an HVAC and facility supplies company with a mission to deliver the best quality Facility Maintenance products and services and provide expert technical support. We house residential equipment, commercial equipment, heating equipment, and service parts and accessories. Got Question? Call us at (877) 776 - 8228.

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