Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 Enhanced Protection: Provides superior protection

Enhanced Protection: Provides superior protection against backflow in high-hazard cross-connections

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

5 to 3-ton air handlers without impinging on airflow

This specific model features a manual operator

Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 Enhanced Protection: Provides superior protectionThe 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.