Critical Component Protection: Designed to facilitate the necessary "float" to prevent bearing failure

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

Why is my furnace giving a 'Low Flame Signal' code if the rod is clean

and Square D

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

Honeywell 395390-13 Orifice Critical Component Protection: Designed toThe 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