[54] AIR DISTRIBUTION FAN AND OUTSIDE AIR DAMPER RECYCLING CONTROL
[75] Inventor: Arniin Rudd, Cocoa, Fla.
[73] Assignee: University of Central Florida,
Orlando, Fla.
[21] Appl. No.: 912,664
[22] Filed: Aug. 18, 1997
[51] Int. CI.6 F25B 19/00; F24F 7/00
[52] U.S. CI 165/244; 62/231; 165/250;
454/201
[58] Field of Search 62/231, 179; 165/244,
165/249, 250
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Primary Examiner—-William Wayner
Attorney, Agent, or Firm—Law Offices of Brian S.
Steinberger; Brian S. Steinberger
[57] ABSTRACT
A system for controlling the operation of an air distribution fan and the operation of a motorized outside air damper of an air conditioning system, having heating and/or cooling and/or humidifying and/or dehumidifying operating modes. The system includes a fan recycling control for periodically energizing and de-energizing an air distribution fan in an air conditioning system in order to operate the air distribution fan for a first selectable time period after a second selectable time period from the end of the last operation of the air distribution fan. The last operation of the air distribution fan could have been due to the heating or cooling or humidifying or dehumidifying or constant fan modes of the air conditioning system, or due to fan operation initiated by the fan recycling control. The system includes an outside air damper recycling control that can open a motorized outside air damper, for the purpose of drawing in ventilation air, each time the air distribution fan operates, and for as long as the air distribution fan continued to operate, can cycle, periodically close then open, the outside air damper based on selectable time periods since it was last opened or closed, respectively. The outside air damper recycling control can de-energize the motorized outside air damper at the end of each operation of the air distribution fan.
14 Claims, 5 Drawing Sheets
