Adjust the internal sensitivity or gain slider on the marked rail

it can be used with any thermostat that fits within its 3-7/8" x 3-1/2" x 2-1/2" interior clearance

The Daikin-McQuay 106372101 Interface Board is a specialized communication module engineered for MicroTech II control systems found in commercial and industrial HVAC equipment

originally found in Honeywell and DeZurik designs

Always verify the shaft diameter and voltage before installation to ensure a proper match with your specific unit

Lochinvar & A.O. Smith 100170640 Thermostat Control 320735-701 Adjust the internal sensitivity orAs 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,