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90" pf pressure switch necessary to ensure the inducer motor can successfully close the circuit
technicians require a harness that maintains low-resistance continuity to prevent nuisance flame signal dropouts
the SWT2478 may be failed or sensing a venting restriction
working with both general and high close-off 2-position actuators
Lochinvar & A.O. Smith 100135300 Main Burner Els PW 17895 90" pf pressure switch necessaryAs a veteran technician, you know that maintaining high efficiency combustion requires precision components. The Lochinvar & A. O. Smith 100135300 Main Burner is the direct OEM replacement burner for failing or carbon fouled units in commercial water heaters and boilers. This specific gas burner assembly is 100% identical to the BNR3417 and is engineered for Lochinvar Copper Fin and EnergyRite models, specifically those within the 400,000 to 750,000