Refrigerant detection system with auxiliary control circuitry
AssigneeTyco Fire & Security GmbH
InventorsMason Sloan DeWald, Andrew Michael Boyd, Theresa Thy Nguyen Gillette, D Gamage Methmini Umayangana Maheshwari Sumanasekara
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Abstract
A heating, ventilation, and/or air conditioning (HVAC) system includes auxiliary control circuitry configured to communicatively couple to a thermostat of the HVAC system. The auxiliary control circuitry is configured to receive a control signal from the thermostat and block subsequent transmission of the control signal in response to receipt of data indicative of a detected refrigerant external to a refrigerant circuit of the HVAC system.
Claims20
A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
- auxiliary control circuitry configured to communicatively couple to a thermostat of the HVAC system, wherein the auxiliary control circuitry is configured to:
- receive a control signal from the thermostat;
- and
- block subsequent transmission of the control signal in response to receipt of data indicative of a detected refrigerant external to a refrigerant circuit of the HVAC system.
A non-transitory computer-readable medium comprising instructions stored thereon, wherein the instructions, when executed by processing circuitry, are configured to cause the processing circuitry to:
- receive a control signal from a thermostat of a heating, ventilation, and/or air conditioning (HVAC) system;
- transmit the control signal received from the thermostat to enable operation of the HVAC system based on the control signal in response to non-receipt of data indicative of a refrigerant detected external to a refrigerant circuit of the HVAC system;
- and
- block transmission of the control signal received from the thermostat to suspend an operation of the HVAC system in response to receipt of the data indicative of the refrigerant detected external to the refrigerant circuit.
A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
- a thermostat configured to transmit a control signal indicative of a call for conditioning;
- and
- auxiliary control circuitry configured to:
- receive the control signal from the thermostat;
- in response to non-receipt of data indicative of a detection of refrigerant external to a refrigerant circuit of the HVAC system, transmit the control signal received from the thermostat to cause operation of the refrigerant circuit based on the control signal;
- and
- in response to receipt of data indicative of the detection of refrigerant external to the refrigerant circuit, block transmission of the control signal received from the thermostat.
Dependencies are inferred from the claim text.