Always verify your specific model number against the technical data sheet

This SPST aquastat features a liquid-filled 11-3/16" fast response bulb that sits directly in the water stream

Engineered specifically for use with HST (High Starting Torque) systems

While standard kits focus on the plate and gaskets

Enhanced Flame Sensing: Includes a high-grade sensing probe to provide immediate feedback to the ignition module

Utica-Dunkirk 240009669 Control Board 319825-402 Always verify your specific modelThe Utica Dunkirk 240009669 Control Board is a critical genuine OEM replacement designed for ECR International boilers. This ATB control board, specifically the 2 4 element Revision C, manages the sequence of operation and safety timings to ensure your hydronic system maintains precise thermal regulation. When a furnace or boiler exhibits intermittent ignition failures or erratic limit cycles, installing this factory spec Utica boiler circuit board is