Pay in 4 interest-free payments of $9.45 Learn more
Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Millivolt Generation: Integrated thermopile provides consistent voltage to operate millivolt gas valves during power outages
Simple Integration: Features 7/16" UNS threads and self-aligning ferrules for 1/4" OD rigid tubing connections
mineral buildup around the discharge port
this kit is compatible with standard 1
Lochinvar & A.O. Smith 100109973 Switch 319847-401 Millivolt Generation: Integrated thermopile providesThe Lochinvar & A. O. Smith 100109973 Blocked Inlet Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a normally closed air pressure switch, its primary function is to monitor the intake system for airflow restrictions. If the intake air connection screen becomes clogged or the vent piping is obstructed, the switch detects a fall in pressure and opens the electrical circuit, instantly shutting