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this harness ensures the burner circuit remains open unless the damper blade is in the fully open position
Unlike a simple switch
minimizing the risk of insulation breakdown or mid-season electrical failure
making it ideal for saturated steam service within its pressure range
mount it with the cover facing downward or to the side
Lochinvar & A.O. Smith 100276814 Relief Valve 322838-753 this harness ensures the burnerThe Lochinvar & A. O. Smith 100276814 Relief Valve is a critical safety component designed for high demand commercial and residential water heating systems. This 1" 150# T&P Relief Valve is engineered to automatically discharge water if internal tank conditions exceed 150 PSI or 210F, preventing catastrophic vessel failure. As a direct replacement for 100167360, this OEM part ensures precise fitment and maintains the original engineering