Hi All,

I am working in a project where FCUs (cooling only) system with VAVs are used to condition the group of spaces. The fresh air supply to the space is from TFA system. From TFA, the fresh air is supplied above false ceiling where FCUs take return air from the rooms.

So, we have a doubt regarding the type of system to be selected as mentioned below.

Since the cabins partitions are up to false ceiling and so, the common free return is taken from all the spaces in the zone group. So, we thought that considering multi zone system to show compliance. Is this a right approach?