HVAC SYSTEM AND METHODS OF USING THE SAME FOR LEAK DETECTION

A method of operating a HVAC system is provided. The method includes removing heat from a working fluid using an evaporator and a blower that moves airflow across the evaporator. The method includes measuring at least one gas property value of a fluid surrounding the evaporator using a leak detectio...

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Bibliographic Details
Main Authors Bauer, JR., John Lawson, Meminger, Austin Mitchell, Orr, Timothy James
Format Patent
LanguageEnglish
Published 20.06.2024
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Summary:A method of operating a HVAC system is provided. The method includes removing heat from a working fluid using an evaporator and a blower that moves airflow across the evaporator. The method includes measuring at least one gas property value of a fluid surrounding the evaporator using a leak detection sensor. The method includes determining a control setpoint for a maximum allowable concentration of working fluid in the fluid surrounding the evaporator, where the control setpoint corresponds to a gas property value associated with a threshold percentage of a lower flammability limit of the first refrigerant in air at the operating temperature. The method includes determining that the at least one gas property value of the working fluid exceeds the control setpoint. If exceeded, the method includes closing a value that regulates the flow of working fluid to the evaporator and initiating the blower to move airflow across the evaporator.
Bibliography:Application Number: US202218068901