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Hydronic building cooling/heating system

  • US 5,261,251 A
  • Filed: 02/11/1992
  • Issued: 11/16/1993
  • Est. Priority Date: 02/11/1992
  • Status: Expired due to Fees
First Claim
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1. A temperature control apparatus for air in an air space, comprising:

  • a thermally conductive structure comprising a building floor;

    a source of liquid coolant at a temperature lower than a temperature of the air space;

    controllable means for applying a temperature variable liquid coolant to the thermally conductive structure;

    means for sensing at least the temperature of the air, a relative humidity of the air space, and a temperature of the thermally conductive structure;

    a controller coupled to said means for sensing and to said controllable means, the controller being operable to determine a dew point of the air space and to adjust the variable flow of liquid coolant for maintaining the temperature of the thermally conductive structure at least slightly above the dew point.

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