Field Controls 46207201 Control

The Field Controls 46207201 (Model 5"RC) is a heavy-duty barometric draft control engineered for residential and light commercial oil or coal heating systems. As a precision-balanced draft regulator, it maintains consistent static pressure within the venting system by automatically adjusting for changes in stack temperature and atmospheric conditions. This unit is designed for a 5-inch diameter flue and features a high-sensitivity gate calibrated for settings between .02"wc and .08"wc. For technicians, installing a 5-inch barometric damper is critical for preventing excessive heat loss and ensuring the oil burner combustion efficiency remains within the manufacturer’s specified parameters. The 46207201 utilizes a stainless steel knife-edge bearing assembly to minimize friction, providing responsive HVAC draft regulation even during low-fire cycles. Proper integration of this Field Controls draft control reduces soot accumulation and stabilizes the over-fire draft, directly extending the service life of the heat exchanger and burner components.

• Precision Calibration: Factory-calibrated adjustment weights allow for accurate draft pressure settings ranging from .02" to .08" water column.
• Versatile Application: Fully compatible with both oil-fired furnaces and coal-burning appliances requiring a 5-inch vent pipe.
• Enhanced Combustion: Minimizes fuel consumption by preventing excessive chimney pull from drawing conditioned air out of the building.
• Reliable Construction: Features a robust housing and gate assembly designed to withstand the corrosive flue gases common in coal and oil applications.
• Stabilized Operation: Counteracts fluctuating wind conditions and outdoor temperatures to provide a steady barometric draft for the burner.

How do you adjust the draft setting on the Model 5"RC?
The adjustment is made by moving the weight on the calibrated bracket. For oil-fired appliances, verify the setting using a manometer to ensure the over-fire draft matches the equipment nameplate, typically aiming for -.01" to -.02"wc.

Can this control be installed in any orientation?
The 46207201 must be installed in a vertical, horizontal, or inclined flue pipe, but the gate hinge must remain perfectly level to allow the counterweights to function via gravity. Improper leveling will result in inaccurate draft regulation.

Why is a barometric control necessary for coal applications?
Coal fires produce high internal temperatures and inconsistent draft. This draft regulator prevents various atmospheric changes from causing runaway combustion or inefficient heat transfer, keeping the burn rate controllable and safe.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.