This is the multiple return air module for the M2430 model. It is used as a filter box that is installed on the return air side of the M2430 air handler. You can connect multiple returns or one single return to it.
The Unico System uses less than one-third of the space in the built environment than a traditional system. It can deliver up to 9 tons of air conditioning in the same space as a 3-ton traditional unit.