Williams P321020 Gasket 323269-701 Using a reducer bushing is

Using a reducer bushing is not recommended for high-RPM HVAC applications due to balance risks

Please verify the wiring diagram on your specific heater model

While typically used for capacity control due to its Open-High action

and heat pump systems that demand repeatable performance under heavy loads

ensure the actuator is positioned above the valve body to prevent moisture accumulation

Williams P321020 Gasket 323269-701 Using a reducer bushing isThe Williams P321020 Gasket is a critical component for maintaining the sealed combustion environment in Forsaire Direct Vent wall furnaces. As a precision engineered Burner Pan Gasket, it is designed to establish a high integrity seal between the burner pan and the cabinet, preventing combustion gases from escaping and ensuring proper drafting. This OEM replacement part is specifically compatible with Williams 4007, 5507, and 6007 Series models.