Description
Burnham Boiler 109108-01 Air Proving Switch 2.30″ WC is a pressure-sensing component used to monitor airflow condition within heating equipment and HVAC systems. It is applied in boiler applications to verify that proper air pressure and venting conditions are present before ignition and during operation. It help control system safety by responding to change in air pressure within the combustion or exhaust pathway. Installed as part of the air flow monitoring circuit, it supports stable burner operation, assists with vent verification and contributes to proper coordination between pressure heating components.
