Utica-Dunkirk 240007903 Control Board Els PW 29614 55" WC pressure switch is

55" WC pressure switch is factory-calibrated to actuate at 0

If your system exceeds these limits

you know that maintaining the thermal and pressure envelope is non-negotiable

it can remain in the system provided the pressure drop is monitored and remains within manufacturer limits

Utica-Dunkirk 240007903 Control Board Els PW 29614 55" WC pressure switch isThe Utica Dunkirk 240007903 Control Board is a critical OEM replacement part designed for the precise management and sequencing of hydronic heating systems. As a veteran technician knows, the integrity of the ignition control module determines the reliability of the entire boiler sequence. This high performance HVAC circuit board acts as the central processor, coordinating 24V power distribution, flame rectification, and intermittent pilot or direct