Weil McLain 511-624-450 Differential Pressure Switch 1.18"WC

The Weil McLain 511-624-450 Differential Pressure Switch operates as HVAC systems precision control part that tracks heating system pressure changes in boilers specifically. This operates at 1.18"WC set point to enable safe system operations through flow condition detection and system activation or shutdown signals. This product protects systems from failure through its ability to confirm correct ventilation and airflow. This provides reliable installation and enhances system safety while reducing maintenance needs while supporting energy-efficient performance which makes it vital for boiler function maintenance and HVAC systems reliability.