depending on your wiring diagram

How do I convert this unit from Natural Gas to LP

Common Questions Which furnace models use the Williams P323661

and industrial boiler applications

Reset the thermostat or remove power from the control for at least 5 seconds to initiate a new ignition sequence

Utica-Dunkirk 240007140 Pressure Switch 321702-401 depending on your wiring diagramThe Utica Dunkirk 240007140 Pressure Switch is a critical safety component designed for high efficiency gas fired boilers and furnaces. Precision calibrated to a . 14"wc set point, this Normally Open (N O) diaphragm switch ensures proper draft and venting before allowing the ignition sequence to proceed. As an OEM replacement part, it offers a direct fit for Utica and Dunkirk hydronic systems, maintaining the narrow pressure tolerances required for