Description
The Schwank JS-0576-XY Air Proving Switch is a pressure-operated control used to confirm airflow conditions within ventilation and combustion circuits. Includes at 1.15 inches of water column (WC), it responds to changes in air pressure and sends an electrical signal based on airflow status. It is commonly applied in gas-fired heaters and other HVAC systems where airflow verification is required before or during burner operation. Connected through a sensing line, the switch communicates pressure changes to the control circuit to support coordinated system operation during equipment cycles.
