Utica-Dunkirk 28687 Flame Sensor 321142-301 and trial for ignition (4

and trial for ignition (4 seconds) sequences with extreme accuracy

and ice machines

Integrated flow control and mesh strainer protect sensitive downstream components from waterborne contaminants

this specific cartridge is strictly an electrochemical sensor for Oxygen (O2)

Is the mounting orientation important

Utica-Dunkirk 28687 Flame Sensor 321142-301 and trial for ignition (4The Utica Dunkirk 28687 Flame Sensor is a critical safety component engineered for precise flame rectification in high efficiency residential and commercial gas fired boilers and furnaces. Designed for compatibility with various Utica and Dunkirk heating systems, this OEM replacement flame sensor monitors the burner assembly's combustion process by converting AC voltage into a measurable DC microamp signal. A veteran tech knows that a reliable