For systems exceeding 2 PSI

including heat pump and cooling-only units

Common Questions: What is the rotation direction for this blade

ensuring alignment and electrical compatibility

Enhanced Thermal Safety: Rated at 160°C to accurately monitor combustion chamber temperatures and prevent vapor ignition risks

Utica-Dunkirk 240009793 Pressure Switch 320720-756 For systems exceeding 2 PSIThe Utica Dunkirk 240009793 Pressure Switch is a critical OEM furnace replacement part designed for specific ECR International heating systems, including Dunkirk, Pennco, and Utica Boiler models. This 0. 50" WC pressure switch acts as a primary safety mechanism, monitoring the draft inducer motor to verify adequate negative pressure and airflow before allowing the ignition sequence to proceed. As a veteran grade HVAC safety control, it replaces worn