Cleveland Controls NS2-0441-00 Pressure Switch Freon What is the primary difference

What is the primary difference between the HRP and legacy HRM models

this SPST (Single Pole Single Throw) switch operates as a normally open contact that closes when proper combustion air pressure is detected

protecting the blower motor and associated bearings from mechanical stress

How do I confirm the rotation direction for this replacement

This kit is designed for most Lennox residential units using standard pressure switch diameters

Cleveland Controls NS2-0441-00 Pressure Switch Freon What is the primary differenceThe Cleveland Controls NS2 0441 00 Pressure Switch is a high precision airflow sensing solution designed for rigorous HVAC and industrial application demands. This OEM grade air pressure switch features a factory calibrated set point of 4. 50" w. c., specifically engineered to provide a narrow switching differential and low set point tolerance. Built with a robust glass filled polycarbonate body and a high stability silicone diaphragm, this unit