METHOD AND APPARATUS FOR IDENTIFYING ERRONEOUS DISCHARGE AIR TEMPERATURE (DAT) SENSOR INSTALLATION

A method of monitoring a HVAC system to detect erroneous sensor installation. The method includes determining whether a circulation fan has been operational for a first predetermined time interval. If the circulation fan has been operational for the first predetermined time interval, determining whe...

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Bibliographic Details
Main Authors Kowald, Glenn W, Venkatesh, Sridhar, Oernbo, Lars Noergaard, DELGOSHAEI, Payam
Format Patent
LanguageEnglish
Published 04.06.2020
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
MECHANICAL ENGINEERING
PHYSICS
RANGES
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
VENTILATING
WEAPONS
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Summary:A method of monitoring a HVAC system to detect erroneous sensor installation. The method includes determining whether a circulation fan has been operational for a first predetermined time interval. If the circulation fan has been operational for the first predetermined time interval, determining whether a cooling demand is present. If the cooling demand is present, determining whether the HVAC system has been conditioning air for the first predetermined time interval responsive to the cooling demand. If the HVAC system has been conditioning the air for the first predetermined time interval, determining whether a difference between an indoor air temperature value corresponding to an enclosed space and an air temperature value from a discharge air temperature (DAT) sensor is greater than a predetermined temperature value. If the difference is not greater than the predetermined temperature value, forwarding a message indicating that the DAT sensor positioned within a duct of the HVAC system is improperly installed.
Bibliography:Application Number: US202016784658