What is an air handling unit (AHU)?

An Air Handling Unit (AHU) is a device used to condition and circulate air as part of a heating, ventilation, and air conditioning (HVAC) system. It is a crucial component in commercial, industrial, and institutional buildings to maintain indoor air quality and comfort. The primary functions of an AHU include:

Air Conditioning: AHUs are responsible for cooling or heating the air as needed to maintain a comfortable temperature within a building.

Ventilation: They help in providing fresh outdoor air and removing stale indoor air, contributing to better indoor air quality.

Humidification/Dehumidification: AHUs can add or remove moisture from the air to maintain the desired humidity levels.

Air Filtration: AHUs typically include air filters to remove dust, particles, and contaminants from the air, enhancing indoor air quality.

The basic components of an AHU include a fan or blower to circulate air, heating and/or cooling coils, filters, dampers to control airflow, and a control system to regulate the operation based on temperature, humidity, and other parameters.

AHUs come in various sizes and configurations to suit the specific needs of different buildings and HVAC systems. They play a crucial role in ensuring a comfortable and healthy indoor environment while also contributing to energy efficiency in buildings.