Lochinvar & A.O. Smith 100109825 Thermostat 319825-402 Fail-Safe Mechanical Operation: Includes a

Fail-Safe Mechanical Operation: Includes a spring return mechanism to ensure dampers close or open as intended during power failures

contractors can avoid the mechanical stresses associated with generic aftermarket propellers

Maintaining a proper seal is mandatory for FVIR compliance

The Williams 7716 provides standard LP conversion

maintaining the factory-specified efficiency of your commercial heating and cooling systems

Lochinvar & A.O. Smith 100109825 Thermostat 319825-402 Fail-Safe Mechanical Operation: Includes aThe Lochinvar & A. O. Smith 100109825 Thermostat is a critical OEM replacement part designed for high performance residential water heaters and select commercial boiler applications. Engineered for precision thermal regulation, this Lower Residential TOD (Therm O Disc) thermostat ensures accurate temperature sensing and high limit protection within the gas train assembly or electric heating circuit. As a veteran grade HVAC replacement control, it