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This direct ignition dual automatic valve is engineered to manage fuel flow with precision
An isolated coil allows the control circuit to operate independently of the chassis ground
This OEM component is critical for maintaining discharge air temperatures during defrost cycles or when the heat pump's compressor cannot meet the building's thermal demand
By closing the flue when the burner at rest
Lochinvar & A.O. Smith 100277940 Board 321894-709 This direct ignition dual automaticThe Lochinvar & A. O. Smith 100277940 Board is a critical low voltage connection board engineered for precision signaling in high efficiency heating systems. Specifically designed for the Knight KH055 285 fire tube boilers, this OEM replacement part serves as the central communication interface between the main controller and auxiliary system components. As a veteran technician knows, maintaining signal integrity in commercial water heating
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