AERCO Boiler and Water Heater 60011-4 Blower Proof Switch Assembly

The AERCO Boiler and Water Heater 60011-4 Blower Proof Switch Assembly is a safety monitoring system that is installed in commercial boiler and HVAC systems. It is mainly used to ensure that the combustion blower is running and that it is supplying sufficient airflow before ignition of the burner. This mechanism works by a pressure-sensing switch that reacts to the changes in the airflow created by the blower and provides a confirmation signal to the control circuit. The installation is made in the blower or combustion air assembly, where it is connected to the control wiring. The switching unit promotes the correct sequencing of ignition.