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Energy Efficiency: Enables precise demand-controlled ventilation
High Sensitivity: Accurate 400-1600 Ohm resistance range provides stable flame monitoring
Does this pan include the secondary drain plug
making it compatible with standard HVAC and refrigeration brackets
Lochinvar & A.O. Smith 100112429 Switch 328140-751 Energy Efficiency: Enables precise demand-controlledThe Lochinvar & A. O. Smith 100112429 Blocked Flue Switch is a critical safety component designed for high efficiency water heaters and commercial boilers. As a normally closed thermal switch, it monitors the venting system for atmospheric pressure imbalances or physical obstructions that could lead to dangerous carbon monoxide accumulation. Engineered for precision, this OEM replacement part triggers a system shutdown if it detects flue gas backup,
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