Utica-Dunkirk 240009339 Sensor 320720-756 it provides reliable on/off control

it provides reliable on/off control for terminal units where precise fluid management is required

allowing for precise modulation of RPM to meet specific load requirements

eliminating the calibration drift often seen with generic aftermarket controls

and Style Crest models

Its 11-10 design ensures precise airflow management

Utica-Dunkirk 240009339 Sensor 320720-756 it provides reliable on/off controlThe 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