Carrier Corporation

Sotiri T Hovardas

Larry D Burns

Marcin Piech

Mark E Hemphill

A heating, ventilation, and air conditioning (HVAC) system includes a closed loop refrigeration circuit including a heat exchanger assembly, a detection assembly operable to detect refrigerant from the closed loop refrigeration circuit mixed with air, a mitigation device operable to monitor at least one parameter associated with operation of the detection assembly and a controller operable to determine if an alarm generated by the detection assembly is a false alarm in response to the at least one parameter monitored by the mitigation device.

Frost remidiation and frost sensor

A contactor, and an air conditioning system incorporating the contactor are provided. The contactor includes a body with an upper surface, a line-side electrical terminal located on one end of the body, a load-side electrical terminal located on the other side of the body, a switching element within the body, the switching element coupled between the line-side electrical terminal and the load-side electrical terminal, and a refrigerant mitigating element disposed on the upper surface. The line-side electrical terminal is configured to receive electrical power from an electrical grid. The load-side electrical terminal is configured to transfer at least a portion of the electrical power to at least one component of the outdoor unit. The switching element is configured to electrically connect the line-side electrical terminal and the load-side electrical terminal when activated. The refrigerant mitigating element may help mitigate the ignition of a refrigerant.

A2L compliant contactor

A refrigerant detection assembly for detecting moderate-to-low GWP value refrigerants, an air conditioning system for incorporating the same, and a method of detecting refrigerant leaks using the refrigerant detection assembly are provided. The refrigerant detection assembly may be disposed proximate to an indoor heat exchanger. The refrigerant detection assembly includes a nondispersive infrared (NDIR) sensor, a fan disposed adjacent to the nondispersive infrared sensor, the fan configured to direct a sample to the nondispersive infrared sensor, and a controller operatively connected to the nondispersive infrared sensor and the fan. The controller is configured to operate the fan in constant operation and trigger a response when the refrigerant detection assembly detects at least 25% lower flammability limit (LWL) in the sample.

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Indianapolis, IN, United States of America

Sotiri T Hovardas