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Energy conservation air conditioning system

  • US 3,979,922 A
  • Filed: 12/30/1974
  • Issued: 09/14/1976
  • Est. Priority Date: 12/30/1974
  • Status: Expired due to Term
First Claim
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1. In an air conditioning control system for establishing a desired set of conditions for the air discharged to at least one zone, said system requiring a total energy input to establish said set of conditions, said system having a source of return air and return air damper means, a source of outdoor air and outdoor air damper means, means for mixing return air and outdoor air, air treatment means for treating the mixed air and discharge means for discharging treated air to at least said zone, said system comprising:

  • first means generating a first output dependent upon the temperature of the outdoor air;

    second means for generating a second output dependent upon the temperature of the return air;

    third means for generating a third output dependent upon the temperature of said discharge air;

    fourth means for generating a fourth output dependent upon the moisture content of said outdoor air;

    fifth means for generating a fifth output dependent upon the moisture content of the return air;

    sixth means for generating a sixth output dependent upon moisture content of said discharge air;

    control means connected to said first, second, third, fourth, fifth and sixth means for generating an output dependent upon the first, second, third, fourth, fifth and sixth outputs indicative of the position of the outdoor air damper means requiring the lowest total energy input to support said desired conditions; and

    ,damper means positioning means connected to receive said output from said control means and adapted to operate said outside air damper to said position requiring the lowest total energy input.

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