What is the difference between a fan coil unit (FCU) and an air handling unit (AHU)?
Thursday, August 26, 2021
A fan coil unit (FCU, shown above) is simple and self-contained, and consists of just a coil and fan. Although most often seen as part of a commercial refrigeration system, we occasionally find a horizontal FCU installed in the ceilling of the hallway in a small condo or apartment as the indoor unit of an air conditioning/heating system. They usually don’t use ductwork, and only recirculate the indoor air.
An air handler unit (AHU, shown above) is larger, more complex, with several components, and serves as the indoor part of a central HVAC system with ducts for air distribution.
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To learn more about heating and air conditioning systems, see these other blog posts:
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