the HH18HA285 may be open

The unit is designed with a spring return clockwise safety fail-safe and an integrated transformer

Built with a rugged 48Y frame and a 1/2-inch by 2

With its 1/8" orifice and robust construction

Utica-Dunkirk FE3980B851 Control Board Kit 322056-301 the HH18HA285 may be openThe Utica Dunkirk FE3980B851 Control Board Kit is a critical OEM replacement boiler control manufactured by ECR International. This factory authorized control board is engineered specifically for high efficiency condensing systems, serving as the direct internal logic processor for Utica and Dunkirk boiler models including the DBM34A, CCB150, and CHB100 150 series. As a technical FE CTRL BRD KIT, it manages critical ignition sequences, flame sensing,