Field Controls 46220901 Control 319852-301 ensure you also replace the

ensure you also replace the liquid line filter drier to maintain system dehydration and prevent debris from fouling the small orifice

Key Benefits Includes a factory-installed #50 orifice for calibrated propane (LP) gas delivery

though replacing the hose assembly is a standard preventative maintenance step during altitude derating

making it suitable for 120V to 277V A

Field Controls 46220901 Control 319852-301 ensure you also replace theAs a seasoned tech, you know that consistent performance in oil and coal fired systems depends on precise draft management. The Field Controls 46220901, also known as the Model 4" RC, is the industry standard for maintaining a stable barometric draft in residential and light commercial 4 inch flue applications. This single acting barometric draft control is calibrated to counteract the negative effects of varying stack temperatures, wind fluctuations,