compatible with standard 5/32-inch or 1/4-inch OD polytubing

as a purely analog pneumatic gauge

Technicians should check for continuity across the terminals when the system is off

Is the mounting bracket mandatory for installation

Always verify the rotation of the existing fan wheel before installation

Lochinvar & A.O. Smith 100109280 Burner Assembly 322055-301 compatible with standard 5/32-inch orThe Lochinvar & A. O. Smith 100109280 Burner Assembly is a high precision OEM replacement engineered for Natural Gas (NAT) water heaters and boilers requiring a #33 orifice size. This FV (Flammable Vapor) burner assembly is critical for maintaining the stoichiometric balance required for efficient combustion and stable flame patterns in high recovery heating systems. Designed to meet strict safety standards, this assembly promotes optimal heat