Heating and cooling unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 26, 1999
Issued Date -
N/A
app pub date -
Oct 29, 1997
filing date -
Mar 5, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for maintaining an enclosed space proximate a selected comfort range, and for conserving utilities, the apparatus comprising a housing in communicating relation with the enclosed space and the external environment and having an evaporative cooler for cooling the enclosed space and having a predetermined operating efficiency, and a spaced apart air conditioner for either selectively cooling or heating the enclosed space and having an operating efficiency different from the evaporative cooler, and a control mechanism for automatically and selectively switching back and forth from operation of the evaporative cooler to the air conditioner.
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Family
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