Can the one primary air AHU feed all of the perimeter induction terminal units for a floor?
Yes. The correct selection of the primary air flow and temperature makes this possible. The disadvantages to the scheme are physical ones relating duct size, ceiling space, riser locations and the internal zone ducts and boxes. However, if the building has large areas of glazing on the North face (southern hemisphere applications), which results in the peak cooling load for this face occurring in mid-winter, it may be better to have a separate AHU for the northern zone.
