Fresh air heat exchanger with air treatment system

Abstract

The fresh air heat exchangers function to supply ventilation, heating and air purification. The device does this whether the building is occupied or empty. The outside air is drawn in, filtered, then passed through the heat exchangers where room air is passed adjacent to it and its heat is extracted and transferred to the incoming fresh air. The room air is subsequently exhausted outside. The preheated fresh outside air continues on to a hot water coil where it is additionally heated and then passed over a UV cell for purification. The purified heated air is introduced to the room. In the building unoccupied phase, room air is cycled back into the room without bringing fresh air in.

What is claimed is: 
     
         1 . A mode switching fresh air heat exchanger having simultaneous movement of a hot air stream and a cold air stream comprising:
 a housing, said housing having a front, a back, a top, a bottom, a near end, and a distal end;   located in the interior back of said housing, a fresh air exterior opening louver panel;   a first duct to carry said fresh air from said louver panel to a first heat exchanger;   located in the interior of said front, near the bottom, a stale air open grill;   located interiorly to said housing and adjacent to and aligned with said grill, a filter for said stale air;   a second duct to carry said filtered air to a second heat exchanger, said second heat exchanger connected contiguous to and in air carrying tandem to said first heat exchanger;   a third duct to carry said filtered air after having passed through the second heat recovery ventilator to the outside through said louver panel;   a fourth duct to carry said fresh air to a heating zone and through an air vent into a room, said air vent located in said top of said housing, said air being conveyed through said heating zone by a variable speed electrical fan;   said fresh air and stale air being simultaneously moved by electrical blowers, and,   electrical components for electrifying said blowers and said fan.   
     
     
         2 . The fresh air heat exchanger as claimed in  claim 1  wherein in addition, there is a cell for treating said air to substantially remove odors, pollutants, volatile organic compounds, smoke, mold, bacteria, and viruses, if present in the air.