If the valve receives power but fails to open or output manifold pressure

seized bearings evidenced by a lack of free-spin

It is primarily utilized on the GPSH 40 and 50 Series 201

OEM Fitment: Standard 1/2" bore size ensures a direct fit for Carrier

Reliable Safety Interface: The integrated thermocouple ensures precise flame sensing to prevent unburned gas from entering the combustion chamber

Field Controls 01845401 Control 321702-401 If the valve receives powerThe Field Controls 01845401 Control, also known as the Model 8"RC Barometric Draft Control, is the industry standard solution for maintaining precise flue draft in oil or coal fired heating appliances. Engineered for both residential and commercial applications, this 8 inch regulator counteracts fluctuations caused by varying stack temperatures and wind conditions, ensuring a stable environment for efficient combustion. This unit is adjustable from .