Lochinvar & A.O. Smith 100170640 Thermostat Control 319852-301 Rugged Shaft Design: Features a

Rugged Shaft Design: Features a durable 1/4" x 3/8" threaded shaft for secure fan blade mounting and vibration-free operation

000 tensile-rated installation

This part is standard in many Copper-Fin and early-model commercial water heaters

or a failed winding that prevents the motor from reaching the necessary speed to trigger the pressure switch

Extended Sweat Connections: The 1/4" ODF extended connections provide ample space for torch work

Lochinvar & A.O. Smith 100170640 Thermostat Control 319852-301 Rugged Shaft Design: Features aAs a veteran tech, you know that maintaining thermal safety is non negotiable for commercial boiler and water heater uptime. The Lochinvar & A. O. Smith 100170640 Thermostat Control is a critical high limit thermostat engineered to provide precise over temperature protection in Lochinvar boilers and high recovery water heating systems. This genuine OEM temperature limit switch serves as a direct replacement for the obsolete Lochinvar TST30009,