Lochinvar & A.O. Smith 100109825 Thermostat 319825-402 Key Benefits for Contractors: Direct

Key Benefits for Contractors: Direct Logic Replacement: Specifically replaces the 8201-048 without requiring wiring modifications in compatible Bard HVAC systems

The Williams 7716 provides standard LP conversion

Operational Reliability: Using genuine York HVAC parts ensures that flow rates and pressure drops remain within original design parameters

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

As a critical component of the combustion system

Lochinvar & A.O. Smith 100109825 Thermostat 319825-402 Key Benefits for Contractors: DirectThe 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