| 摘要 |
A gas furnace controller for disrupting the flow of gas to a gas furnace upon detection of excessive levels of carbon monoxide comprises an air sample collector in fluid communication with a carbon monoxide detector, a gas supply shutoff circuit for controlling a valve in a gas supply line to the gas furnace; and a controller in electrical communication with the carbon monoxide detector and the gas supply shutoff circuit. The controller is adapted to actuate the gas supply shutoff circuit and sound an audible alarm in response to detection by the carbon monoxide detector of a predetermined level of carbon monoxide.
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