Updated Performance: The 066538 serves as a direct

Durable Construction: Equipped with ball bearings for all-angle mounting and a semi-enclosed housing to protect internal windings from debris

ensuring reliable air flow verification for fan proving and burner ignition sequences

Whether you are servicing a reach-in cooler or a specialized AC unit

Key Benefits Optimized Sealing: High-performance EPDM gaskets provide superior resistance to common refrigerants and oils

Siemens Building Technology 141-0518 Switch 322838-752 Updated Performance: The 066538 servesThe Siemens 141 0518 141 0518 Airflow Switch is a high performance differential static pressure switch engineered for precision air monitoring in duct systems. This rugged HVAC pressure controller features a field adjustable setpoint range of 1. 0 to 12. 0 inches Water Column (WC), allowing for accurate sensing of pressure variations across fans, filters, and coils. Designed with a Single Pole Double Throw (SPDT) switch configuration, the 141 0518