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What are differences between ahu and fahu and its advantage?

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Question added by jesus regiro
Date Posted: 2015/12/06
Rudresh Nautiyal
by Rudresh Nautiyal , Mechanical Specialist , Cowi

AHU (Air Handling Unit):

Uses Partly fresh air & partly Return Air from room & conditions it as per design requirement.

 

FAHU (Fresh Air Handling Unit):

It handles total fresh air (no return air). Generally takes air from atmosphere & cools down it to less temperature, which can then be supplied into common areas / AHU / any other area as per design requirement.

 

Advantage:

When used in series with AHU, It  lowers the fresh air temperature & thus reduce the load on AHU coil.

 

 

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