Supco F7799 Control Board ensuring a positive "OFF" position

ensuring a positive "OFF" position for mechanical system shutdown and enhanced safety during maintenance

it includes a built-in override switch for manual testing and maintenance

This part features a 1/4 inch male spade terminal for secure electrical termination and rapid field installation

Using a switch with a higher thermal rating can compromise equipment safety

Direct OEM Replacement: Fully compatible with Williams Monterey Top Vent furnaces 3509821 and 3509822

Supco F7799 Control Board ensuring a positive "OFF" positionThe Supco F7799 Fan Control Board serves as a critical direct replacement for 1088977 (and HQ1088977A1), commonly found in HVAC systems manufactured by brands such as Tempstar, Heil, and Comfortmaker. Specifically engineered for condenser units, this board regulates fan speed based on ambient outdoor temperatures to maintain stable head pressures for system efficiency. This furnace control board supports high amperage applications with an output low