Lochinvar & A.O. Smith 100170640 Thermostat Control 318973-401 For mid-efficiency split systems and

For mid-efficiency split systems and packaged gas units

Universal Compatibility: Standard 1/4" NPT connection ensures easy installation across various commercial HVACR systems

Built for heavy-duty commercial and industrial cooling applications

Universal Mounting: Can be installed in any position (except upside down) to accommodate various HVAC gas valve wiring configurations

High Amperage Rating: Rated for 18-amp loads

Lochinvar & A.O. Smith 100170640 Thermostat Control 318973-401 For mid-efficiency split systems andAs 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,