checking the continuity of this temperature-sensing switch is a standard diagnostic step

this kit provides a drop-in solution that restores factory-spec economizer operation

maintaining consistent indoor air quality and comfort

providing a reliable solution for complex troubleshooting scenarios where system logic or voltage regulation has degraded

NPT and 1/4 in

Field Controls 01804401 Control 321042-401 checking the continuity of thisThe Field Controls 01804401 (Model 7" MG1) is a high precision double acting barometric draft control engineered specifically for gas fired heating systems, including furnaces, boilers, and conversion burner applications. This 7 inch draft regulator is an essential component for maintaining combustion stability and preventing backdrafting by automatically compensating for fluctuations in barometric pressure and stack temperature. Technical field data