this mechanical LWCO utilizes dual precision switches to reliably interrupt the burner circuit during low-water conditions while simultaneously providing a secondary circuit to actuate an alarm or an electric water feeder

and 810HE series

ensuring the system operates within established safety parameters without nuisance tripping or delayed response times

meaning it will reopen and stop the fan once the temperature drops to 90°F

including high-capacity LCH models

Field Controls 46086403 Switch 320788-703 this mechanical LWCO utilizes dualThe Field Controls 46086403 Switch is a critical safety component designed for precise thermal monitoring in HVAC ventilation systems. This high limit safety switch features an auto reset mechanism calibrated to trigger at 160F, ensuring consistent protection for millivolt (mV) and 24V control circuits. Built for durability in commercial and residential draft control assemblies, it effectively prevents equipment damage by interrupting the circuit when