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connect the sample line to the low-pressure inlet (L) while leaving the high-pressure inlet (H) open to the atmosphere
This boiler control module oversees the firing of the spark electrode and the modulation of the combustion fan assembly to ensure optimal fuel-to-air ratios
This component is a 0
Technicians typically look for unusual rattling
Williams P168400 Burner 322838-753 connect the sample line toThe Williams P168400 Burner is a precision engineered OEM replacement part specifically designed for Williams Direct Vent Wall Heaters, primarily supporting the 1403 series such as models 1403821 and 1403822. As a veteran grade burner assembly, it is constructed from high grade stainless steel to provide superior thermal resistance and maintain consistent flame stability in gravity direct vent furnaces. Experienced technicians recognize the P168400
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