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US 11,079,149 B2Granted
System and method of diluting a leaked refrigerant in an HVAC/R system
AssigneeCarrier Corporation
InventorsPaul Papas, Parmesh Verma, Richard G. Lord, Larry D. Burns
Life of this patent
Estimating the term…
Abstract
A mitigation damper operably coupled to a return conduit. The return conduit includes an opening. The mitigation damper is positioned adjacent to the opening. The mitigation damper is configured to selectively allow airflow through the opening in response to a detected refrigerant leak.
Claims13
A system comprising:
- a component configured to allow a refrigerant to flow therethrough, the component located in a supply conduit;
- a return conduit operably coupled to the component, the return conduit including an opening;
- a mitigation damper operably coupled to the return conduit and positioned adjacent to the opening;
- a sensor configured to detect a refrigerant leak, the sensor being in electrical communication with the mitigation damper;
- wherein the mitigation damper is configured to selectively allow airflow through the opening in response to the sensor having detected a refrigerant leak.
2 more elements
A method of diluting a leaked refrigerant in a system, the system including a component operably coupled to a return air conduit, and a mitigation damper operably coupled to the return air conduit, the method comprising the steps:
- (a) at a controller, determining whether a refrigerant leak has occured;
- and
- (b) sending a signal to initiate operating a mitigation damper from a closed position to an open position if a refrigerant leak is detected;
- wherein the component comprises an evaporator coil.
1 more element
A system comprising:
- a component configured to allow a refrigerant to flow therethrough;
- a return conduit operably coupled to the component, the return conduit including an opening;
- a sensor configured to detect a refrigerant leak;
- and
- a mitigation damper, a first portion of the mitigation damper configured to move from a closed position covering the opening to an open position enabling air to pass through the opening if the mitigation damper receives a signal from the sensor indicating the detected refrigerant leak;
- wherein the component comprises an evaporator coil.
3 more elements
Dependencies are inferred from the claim text.