Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 this 4-speed PSC motor serves

this 4-speed PSC motor serves as the direct replacement for HC43AE116 and HC43AE116A models

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

Engineered for tight manifold pressure regulation

use a manometer to check if the actual draft exceeds 0

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

Lochinvar & A.O. Smith 100074640 Ignitor 340155-7024 this 4-speed PSC motor servesThe 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.