Patent ID: 11965663
Assignee: COPELAND LP
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A refrigerant leak sensor, comprising:
a first refrigerant sensor element configured to, when powered:
measure a first amount of the refrigerant present in air; and
generate a first output based on the first amount;

a second refrigerant sensor element configured to, when powered:
measure a second amount of the refrigerant present in air; and
generate a second output based on the second amount;

a first selection module configured to:
during a first period, apply power the first refrigerant sensor element and not apply power to the second refrigerant sensor element; and
during a second period after the first period, apply power to the second refrigerant sensor element and not apply power to the first refrigerant sensor element; and

a second selection module configured to:
during the first period, connect the first output of the first refrigerant sensor element to a third output and not connect the second output of the second refrigerant sensor element to the third output; and
during the second period, connect the second output of the second refrigerant sensor element to the third output and not connect the first output of the first refrigerant sensor element to the third output.