High-Heat Resistance: Built from rigid materials to prevent warping or misalignment within the burner compartment

Draft Verification Accuracy: High-precision set points ensure the vacuum is maintained for safe combustion and efficient venting

Key Benefits for the Contractor: Corrosion Resistance: Naval bronze body and Monel trim ensure longevity in salt-water cooling loops

Key Benefits Precise Refrigerant Metering: Automatically adjusts flow to maintain the correct superheat

White Rodgers 789A-751A1 HSI 340155-7024 High-Heat Resistance: Built from rigidThe White Rodgers 789A 751A1 is a high performance 120V Silicon Nitride Hot Surface Ignitor (HSI) engineered specifically as a Carrier LH33ZG001 direct replacement. As a veteran technician knows, upgrading from older silicon carbide to nitride technology significantly reduces nuisance service calls by providing superior physical durability and faster thermal response. This furnace ignitor features a robust silicon nitride heating element and is rated