2-way normally open vent valve engineered for precision control in HVACR and industrial gas systems

For technicians servicing 58CTW or 59TP6A series units

DPST Configuration: Provides double-pole switching for enhanced control and safety across multiple electrical legs

and F20 models equipped with either manual or hydraulic air shutter mechanisms

providing a high-torque

Cleveland Controls RFS-4100-078 Air Flow Switch R-407A 2-way normally open vent valveThe Cleveland Controls RFS 4100 078 Air Flow Switch is a high sensitivity differential pressure switch specifically engineered for HVAC ventilation monitoring and air proving applications. This unit features a factory calibrated 0. 17" WC actuation point, making it an essential component for detecting low airflow conditions in critical ducts or air handling units. Built with a robust plated housing and a durable silicone diaphragm, the RFS 4100 078