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.
Functions with or without the HHSC+.
|Cubic Feet per Minute||100 CFM|
|Housing Material||Galvanized Steel|
|Number of Units Required||One per 1,000 square ft. of crawl space|
|Temperature Switch Operation||Above 50°F|
|De-humidistat (Optional)||Adjustable from 20%-80%|
|Mounting Plate Dimensions||14 3/8" X 6 7/8"|