The Bard 8403-090 supports up to 3 stages of heat and 2 stages of cool

Universal HVAC Compatibility: Designed for seamless integration into York furnace parts and high limit control systems

and heat strips during abnormal heat events or airflow failures

and 64-A low water cut-offs (LWCO)

á42S-N Combination Low Water Cut Off and Pump Controller with SPST Snap Action Switches and Glass Connector for Steam Boilers (Part Number 129802)

Lochinvar & A.O. Smith 100208093 Door Gasket 326058-755 The Bard 8403-090 supports upThe Lochinvar & A. O. Smith 100208093 Door Gasket is a critical OEM replacement part engineered specifically for high efficiency commercial boiler maintenance. This rubberized burner door gasket ensures a high integrity hermetic seal between the combustion chamber and the manifold assembly, preventing hazardous flue gas bypass and maintaining precise HVAC manifold pressure. Designed to withstand the thermal cycling associated with the KBN600 800