Difference between AHU & FCU By Mohammad Imran
1. AHU is generally a bigger system than FCU.
2. AHU is more complex than the FCU and that AHU are often used in bigger establishments or spaces.
3. The AHU system usually channels air through ducts whereas the FCU don’t have any ductworks.
4. AHU system treats outside air while FCUs basically recycle or re-circulates the air.
5. AHU have sections for reheating and humidifying whereas the FCU does not have any.
6. FCU are often observed to be noisier than the AHU
