METHOD AND APPARATUS FOR REMOVING ICE FROM OUTDOOR HOUSING FOR AN ENVIRONMENTAL CONDITIONING UNIT
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United States of America Patent
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Issued Date -
Aug 14, 2008
app pub date -
Feb 9, 2007
filing date -
Feb 9, 2007
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Abandoned
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Abstract
A method for removing ice from an outdoor housing for an environmental conditioning unit that includes the housing surrounding a coil and a fan for moving air past the coil includes the steps of: (a) operating the fan at a first speed in a first direction to move air in a first flow past the coil while the conditioning unit is in a heating mode; (b) disengaging the fan when the conditioning unit is in a defrost mode; (c) operating the fan at a second speed in a second direction to move air in a second flow past the coil when an operational parameter attains a first value; and (d) operating the fan in the first direction at the first speed to move air in the first flow when the operational parameter attains a second value.
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