Lochinvar & A.O. Smith 100109935 Flue Switch 326070-701 This internal pilot operated valve

This internal pilot operated valve features a normally closed (NC) configuration and a pressure rating of 0-5 PSI

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Lochinvar & A.O. Smith 100109935 Flue Switch 326070-701 This internal pilot operated valveMaintain the exhaust integrity and operational safety of your high efficiency heating systems with the Lochinvar & A. O. Smith 100109935 Flue Switch. As a critical safety component, this blocked flue pressure switch is engineered to detect vent obstructions and immediately signal the control board to terminate the ignition cycle, preventing hazardous flue gas recirculation. This genuine OEM part is the designated 100109935 replacement for 9004550215,