Lochinvar & A.O. Smith 100208176 Limit Switch 30067439-890 Key Benefits Manual Reset Feature:

Key Benefits Manual Reset Feature: Enhances system safety by requiring a technician to physically reset the proving switch after an air pressure trip

though it should be verified with a calibrated thermometer during commissioning to ensure local air patterns are accounted for

Key Benefits: System Compatibility: Engineered specifically for the Weil McLain Ultra Gas series and various commercial hydronic boilers

The seat in the relief valve module for this size range can typically be accessed using standard hand tools once the relief valve cover is removed and the module is extracted

Automatic Recovery: Features an auto-reset mechanism that restores heater functionality without manual intervention after cooling

Lochinvar & A.O. Smith 100208176 Limit Switch 30067439-890 Key Benefits Manual Reset Feature:The Lochinvar & A. O. Smith 100208176 Limit Switch is a critical safety component engineered to monitor and regulate water temperatures in high efficiency domestic and commercial heating systems. Calibrated specifically as a 240F High Limit Switch, this device functions as a manual or automatic thermal cutout, interrupting the electrical circuit to the burner or heating elements should the system exceed safe operating parameters. Rated for 240 degrees