20160097553 | WHOLE BUILDING AIR VENTILATION AND PRESSURE EQUALIZATION SYSTEM AIR MIXER WITH DAMPERS - A whole building ventilation system mixing box that mixes exterior air with air from within the building, having one or more exterior air inputs, on or more interior air inputs with one or more mixed air outputs that re-circulates the mixed air to a whole building HVAC system having one or more ventilation fans. The whole building ventilation system mixing box being open to circulation and mixes the return air from the interior air input with the exterior air whether or not the exhaust fan is on so as to equalize pressure between the interior and exterior of the building. In addition a method of sizing a whole building ventilation system mixer box for mixing exterior air from outside the building with interior air from within a building is provided and includes the steps of determining a value one or more variables related to a building or the air around the building then constructing a whole building mixer box with an at least one damper therein that allows operation without the concomitant operation of an intake fan so as to equalize air pressure within the building to ambient outside pressure, then coupling, adjusting, operating the HVAC device to move air and drawing in cooled or heated air and equalizing the air pressure in the building with the addition of exterior air. | 04-07-2016 |