When failure or interruption of flame or ignition
occurs, the fuel supply shall be cut off. When a predetermined temperature
or pressure is exceeded, the input of additional heat shall be prevented
or reduced to a safe rate. When the water level in a steam boiler
drops below a predetermined level, the fuel supply shall be cut off.
When failure or interruption of pilot light or main burner of liquefied-petroleum-gas
equipment occurs, the fuel supply to each pilot light and main burner
shall be cut off.
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