MAS-1 Make Up Air System with 6 Intake Air Hood

While an integrated system is the recommended choice for fresh air ventilation low-cost secondary options include an exhaust system and/or a make-up air system. Exhaust ventilation systems remove air from a particular location often leading to depressurization in the home. Replacement or make-up air 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 activated damper that opens whenever the central fan is on or when the home becomes depressurized. Functions with or without the hhsc+.

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