Utica-Dunkirk 240009339 Sensor 30067439-890 Flipping a standard upflow unit

Flipping a standard upflow unit without a downflow kit leads to improper drainage and moisture being pulled into the airstream

It is designed for indoor or protected outdoor use within an equipment cabinet

Stable Superheat Control: The double-ported configuration ensures excellent partial load performance down to 10% of total capacity

Common Questions How do I verify the rotation for this blade

Utica-Dunkirk 240009339 Sensor 30067439-890 Flipping a standard upflow unitThe Utica Dunkirk 240009339 Sensor is a critical OEM component for hydronic heating systems requiring high precision temperature monitoring. This 24 inch hot water sensor is a direct replacement part engineered specifically for L7221 and L7248 Aquastat controls. As a veteran grade boiler temperature sensor, it provides the low voltage resistance feedback necessary for the control board to manage ignition cycles and high limit safety protocols