Precise Overheat Protection: Calibrated for a 350°F trip point to protect critical furnace components and heat exchangers

this limit switch is built for high-duty cycle reliability and long-term thermal stability in high-temperature environments near the burner manifold

it is designed to protect the heat exchanger from damage caused by restricted airflow or blower failure

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Honeywell 395390-13 Orifice Precise Overheat Protection: Calibrated forThe Honeywell 395390 13 Orifice is a precision engineered LP gas component specifically designed for use with Honeywell Q179 Series pilot burner assemblies. Featuring a strictly calibrated 0. 013" diameter, this orifice is critical for maintaining the correct fuel to air ratio in propane fueled commercial and industrial burners. Whether you are servicing a Q179A interrupted pilot or a Q179B continuous pilot system, this part ensures a stable flame