HVAC system having a diagnostics controller associated therewith
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United States of America Patent
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Aug 28, 2018
Grant Date -
Oct 24, 2013
app pub date -
Jun 17, 2013
filing date -
Dec 21, 2011
priority date (Note) -
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Abstract
In one aspect, the present disclosure provides a controller for a HVAC system having an economizer with a damper and pressure sensors on opposing sides of the economizer. The controller comprise a diagnostics controller having a program configured to use pressure difference sensor data to determine if a pressure difference across the economizer is outside an operational design parameter of the HVAC system, and generate an error signal when the pressure difference is outside the operational design parameter.
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