04389853 is referenced by 27 patents and cites 10 patents.

An apparatus and method for operating an air conditioning unit incorporating both an economizer and a two speed fan are described. When the economizer is in operation the fan is typically operated at high speed regardless of refrigeration circuit operation to circulate sufficient outdoor air to the enclosure. When the economizer is closed, indicating the outdoor air is too warm to provide cooling to the enclosure, the fan is typically operated at low speed saving fan energy. An override control is provided for operating the fan at high speed regardless of the outdoor temperature should sufficient cooling demand be detected.

Title
Method and apparatus for controlling an air conditioning unit with multi-speed fan and economizer
Application Number
6/293057
Publication Number
4389853
Application Date
August 17, 1981
Publication Date
June 28, 1983
Inventor
James R Hile
Kirkville
NY, US
Agent
Robert P Hayter
Donald F Daley
Assignee
Carrier Corporation
NY, US
IPC
F25D 17/06
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