What isn't mentioned is the possibility to take LATENT load out of the incoming OA (in other words, moisture). 90 deg humid air takes a lot more cooling to get down to 55 than 90 deg dry air.
An energy recovery unit with a desiccant energy recovery wheel can help pre-"dry" the OA with the...
If so much of the air is recirculate (correct me if I'm wrong: room air and corridor air mix at the unit before being redistributed?), then what is the goal in keeping a higher differential pressure in the corridor?
Also, are there terminal boxes? Are they variable volume?
I might be...
