Description
The Cleveland Controls DFS-221 Differential Pressure Switch Set is a high-accuracy part used in the measurement and regulation of airflow in HVAC systems. Having a setpoint range of 0.05” WC, it uses an SPDT switch that activates on pressure rise to effectively operate duct heaters and ventilation systems. Such a switch is specifically advantageous in maintaining correct airflow, energy conservation, and security by identifying problems such as blocked filters. The connection type is the compression fitting which makes it easy to install in different HVAC systems.
