Utica Dunkirk 240009339 Sensor 323055 751 Stocking this S1 32440863003 York part Stocking this S1 32440863003 York part ensures you can restore variable speed functionality to high efficiency residential air handlers and furnaces without compatibility issues The ASCO 8215G70 12VDC is a high performance 1 1 2 inch normally closed solenoid valve specifically engineered for high flow air and gas applications in HVACR and industrial systems If the existing immersion well is scaled or damaged Precision Compatibility: Designed for seamless integration with Honeywell L7221 and L7248 electronic Aquastats found in Dunkirk and Utica boiler models