Standard industry practice requires replacing this seal every time the oil filter is accessed or during annual inspection to prevent compression set leaks

this switch features a calibrated 225-50 degree temperature range

which may fail to keep the oil sufficiently warm in extreme cold

Precision Airflow: Engineered to provide the exact CFM required for optimal combustion stability and heat exchanger safety

this pilot-duty device isolates low-voltage control circuits from high-voltage loads up to 20 Amps

Cleveland Controls NS2-0312-00 Pressure Switch 320788-704 Standard industry practice requires replacingThe Cleveland Controls NS2 0312 00 Pressure Switch is a high precision air flow sensing switch engineered for critical monitoring in residential and light commercial HVACR applications. Operating at a fixed factory calibrated set point of . 90" WC, this unit utilizes a sensitive silicone diaphragm and a glass filled polycarbonate housing to ensure long term stability in demanding environments. As a veteran grade differential pressure switch, it is