Reznor 234712 Air Proving Switch

Reznor 234712 Air-Proving Switch operates as an air pressure sensor to verify proper airflow in HVAC systems. This switch operates at 0.10" WC pressure which makes it a Proven part suitable for unit heaters and furnaces and forced-air heating systems. The device monitors enough air movement through its sensors to stop system operation when unsafe conditions arise. The safety of operations and efficiency improves when this device protects systems from overheating and burner misfires therefore ensuring reliable HVAC operation.