Broad Compatibility: Fits Johnson Controls V-3974

Precision Alignment: Engineered to exact OEM specifications for seamless integration into Carrier gas-fired heating sections

ensuring proper fitment and terminal alignment without field modifications

depending on the pressure rating of the specific installation

Always ensure power is disconnected before adjusting jumper positions to protect the electronic control module

Lochinvar & A.O. Smith 100276843 Gasket R-407C Broad Compatibility: Fits Johnson ControlsFor high performance hydronic and domestic hot water systems, the Lochinvar & A. O. Smith 100276843 Gasket is a critical OEM component designed to maintain the integrity of the 2 burner assembly interface. As a veteran technician knows, achieving a precise combustion chamber seal is non negotiable for system safety and operational efficiency. This high temp gasket provides a robust barrier between the burner manifold and the heat exchanger,