Cleveland Controls NS2-3055-01 Pressure Switch Refrigerant provided the furnace model specifies

provided the furnace model specifies the 903905 part number and the airflow meets the minimum requirements to prevent overheating

It is not interchangeable with smaller series like the RV81 or RV91

Designed for high-side pressure monitoring in commercial refrigeration and air conditioning systems

discharge air sensors

Features a substantial 104

Cleveland Controls NS2-3055-01 Pressure Switch Refrigerant provided the furnace model specifiesThe Cleveland Controls NS2 3055 01 Pressure Switch is designed for precise air pressure monitoring in HVAC, combustion air proving, and ventilation control applications. Rated at approximately 1. 00 0. 05" W. C., this HVAC pressure switch is commonly installed in furnaces, boilers, rooftop units, and air handling systems where accurate airflow verification is required for safe equipment operation. The integrated . 016" orifice helps stabilize pressure