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where a heating only SPST switch is required
leak-tight closure is a non-negotiable safety requirement
Enhanced Flow Dynamics: Engineered to minimize pressure drop
secondary components like sensors or tubing may need to be reused or sourced separately depending on the kit configuration
Most commonly
Lochinvar & A.O. Smith 100278134 Control 30067439-890 where a heating only SPSTThe Lochinvar & A. O. Smith 100278134 Control is a critical OEM User Interface Control board engineered for precise system management in high efficiency condensing boilers. As a direct replacement for legacy part numbers RLY20136K, RLY20136, and 100189277, this Boiler Control Board provides the necessary digital interface for real time monitoring and adjustment of combustion parameters. This HVAC Replacement Part is a standard component in the
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