What Are Air Handlers and Chillers in HVAC Systems?

When efficiency and comfort are the primary concerns when it comes to heating, ventilation, and air conditioning, many don’t know how these systems actually work. Knowing the purpose of these systems can assist you in making smarter decisions about maintenance, upgrades, and system operation.




What Is an Air Handler and Chiller in HVAC Systems?

Air handlers and chillers are pivotal devices employed to control indoor temperature and air quality in commercial and residential buildings. The chiller works to produce cold water or refrigerant to cool the air, and the air handler circulates the cooled air around the building through a series of ducts and vents.

How Do Chillers Work?

Important to understand how chillers function. Air chiller removes heat from a liquid using a vapor compression or absorption refrigeration cycle. This chilled water is then circulated through coils in the air handler to cool the air before it’s distributed into various rooms.

The Role of Air Handlers

It consists of major components such as the blower, filters, heating or cooling coils, and dampers. The air handler cooperates with the chiller in pushing conditioned air through the building to provide comfortable indoor spaces and good air quality.

Why Are They Important?

They’re the workhorses of contemporary climate control. Combined, they provide energy-efficient cooling and reliable temperature control. These units are essential in large commercial environments, hospitals, schools, and high-density residential buildings where air quality and comfort are paramount.

Maintenance Considerations

It’s also important to note that both need regular maintenance. Filthy coils, dirty filters, and mechanical wear can decrease efficiency and raise energy bills. Regular inspections and prompt servicing are the secrets to keeping the system running efficiently.


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