Hi, 

I am supporting the design of a large students house, more than 700 hundresds rooms.

For technical, and economic, reasons the systems design team is considering to implement a distributed mechanical ventilation system, every room will have a VMC integrated into the windows frame or in the external wall, instead of a centralized plant.
With this configuration it is not possible to respect the minimum distance between external air intake and external air outlet as represented in table 5.1 of Ashrae 62.1.To synthetize the issue, with the proposed configuration, external air intake and outlet will be pretty close, at about 1 meter of ditance.
I wonder if it is possible to use this system, maybe with alternative compliance path.

Thanks in advance for your attention

Francesco