Description
The Cleveland Controls AFS-262-191 Air Flow Switch is a pressure sensor that monitors air motion and verifies proper circulation before allowing system operation, ensuring safe and reliable performance. It runs through a diaphragm and spring mechanism that responds to positive, negative, or differential air pressure and activates an internal switch when airflow reaches the set point. Within HVAC systems in furnaces, ventilation units, or air handling equipment, it connects to air sampling lines and control circuits to confirm adequate venting conditions. Its application enhances system safety, prevents operation under restricted airflow, and supports consistent performance by enabling accurate air velocity.
