Lochinvar & A.O. Smith 100108729 Pilot Freon allowing for coil swaps without

allowing for coil swaps without breaking the gas line or interrupting supply

ensuring that the inducer motor is generating sufficient static pressure to vent combustion gases safely before allowing the ignition sequence to proceed

Oversized Outlet: The 1" FNPT discharge port reduces backpressure and ensures faster relief during activation

Ensure the seating surface is clean of debris before securing the new diaphragm to maintain an airtight seal

Ensures boiler maintenance standards by preventing overfilling and optimizing return condensate space

Lochinvar & A.O. Smith 100108729 Pilot Freon allowing for coil swaps withoutThe Lochinvar & A. O. Smith 100108729 Pilot is a precision engineered LP pilot assembly (model PB 5S) designed specifically for liquid propane fired water heaters and boilers. As a genuine OEM replacement part, it ensures direct compatibility with A. O. Smith GCV, XCV, and Lochinvar residential units where a stable pilot flame is critical for safe ignition. This pilot burner assembly includes the requisite orifice calibrated for LP gas pressure, a