Cleveland Controls DFS-221 Switch This ensures it can withstand

This ensures it can withstand the high pressures and temperatures typical of commercial hydronic systems while maintaining structural integrity

Heavy-Duty Bearing: Features an integrated bearing assembly built for high-RPM operation in continuous-run blowers

Using the 063392 ensures the force is applied evenly across the intended contact points

Key Benefits for Contractors Exact OEM Compatibility: Serves as the official 8402-048 replacement

This prevents localized overheating caused by restricted airflow

Cleveland Controls DFS-221 Switch This ensures it can withstandThe Cleveland Controls DFS 221 Air Flow Switch is a high precision, factory set differential pressure switch designed for air proving in demanding HVAC and energy management systems. Engineered to detect positive, negative, or differential pressure, this SPDT air pressure sensing switch is factory calibrated to operate on a pressure rise at 0. 05" 0. 02" w. c.. Its non adjustable design ensures consistent performance in duct heaters, ovens, and