Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 This specific model features a

This specific model features a manual operator

F rating allows for use in various saturated steam environments

Can I use a generic pressure switch as a substitute

This unit is rated for 600VAC insulation and provides reliable amperage monitoring across its calibrated scale

Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 This specific model features aThe Lochinvar & A. O. Smith 100074640 Ignitor is a critical genuine OEM ignition component engineered for high efficiency condensing water heaters and commercial boiler systems. Built to survive the rigorous thermal cycling of modern hydronic equipment, this black box ignitor assembly provides the high voltage spark necessary for consistent burner ignition and reliable system startup. As a standard replacement for Lochinvar Knight boilers and A. O.