Field Controls Product Make-up Air System and intake Air Hood

This Make-up Air System and intake Air Hood will infiltrate through leaks in the building shell and other uncontrolled sources. A make-up air damper can be added to the central system when exhaust ventilation is employed. The Mas provides replacement air as needed from a controlled source into the return air plenum where it is tempered and distributed throughout the home. The make-up air system is a pressure activated damper that opens whenever the central fan is on or when the home becomes depressurized.