Lochinvar & A.O. Smith 100170640 Thermostat Control 318423-701 This is a genuine OEM

This is a genuine OEM part for White-Rodgers/Emerson systems

and carbon

this genuine Carrier part eliminates the guesswork of universal "hard start" kits by maintaining the original factory-specified timing and dropout voltage of the relay

and light oil with exceptional reliability

This 230F CO Auto Limit Switch acts as a critical safety integrated component

Lochinvar & A.O. Smith 100170640 Thermostat Control 318423-701 This is a genuine OEMAs 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,