ensuring the thermocouple/thermopile generates the necessary voltage for valve operation

intuitive control knob for precise field adjustments

Reliable Signal: Optimized millivolt output ensures the gas valve remains energized

The direction of rotation is field-reversible using a simple toggle switch located under the actuator cover

Why is the service key necessary

Resideo AM101-US-1LF Valve 323055-751 ensuring the thermocouple/thermopile generates theThe Resideo AM101 US 1LF is a professional grade thermostatic mixing valve designed for precision temperature control in potable water systems and hydronic heating applications. Featuring a 3 4 inch union sweat connection, this lead free brass valve maintains stable output temperatures between 70F and 145F, even under fluctuating inlet pressures. Built with a Teflon coated spool and body, it resists mineral scale buildup, ensuring long term