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Key Benefits: System Compatibility: Engineered specifically for the Weil McLain Ultra Gas series and various commercial hydronic boilers
Key Benefits Manual Reset Feature: Enhances system safety by requiring a technician to physically reset the proving switch after an air pressure trip
providing the exact BTU input needed to energize the thermocouple or flame sensor
If it shows high resistance or is open at room temperature
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: System Compatibility: EngineeredThe 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