ESCO Air Conditioning Practice Exam 2025 – The All-in-One Guide to Exam Success!

The purpose of an air handler in an air conditioning system is to circulate conditioned air throughout a building. An air handler is essentially a vital component that works together with the heating and cooling parts of the system to ensure consistent airflow and temperature control in indoor spaces. It contains a blower, which draws air from the space, pushes it through the system (including the heating and cooling coils), and then distributes the conditioned air back into the environment.

In HVAC systems, maintaining appropriate airflow is crucial for both comfort and efficiency. The air handler facilitates this process, ensuring that the conditioned air is effectively transported to various rooms to maintain a comfortable temperature and air quality.

Other choices may refer to functions that are part of the overall system but do not specifically describe the main function of an air handler. The focus is primarily on the circulation of air rather than functions like humidification, cooling refrigerants, or moisture removal, which are typically handled by other components of the system.