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

This specific model features a manual operator

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

OEM Reliability: Genuine Carrier replacement part ensures exact fitment and restores original factory performance

5 to 3-ton air handlers without impinging on airflow

Can I use a generic pressure switch as a substitute

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.