Description
The Reznor 38712 Pressure Switch SC ANA-100-14-20 is a security control component built to monitor air pressure within gas-fired heating equipment and proper airflow before the burner is allowed to operate. It detects pressure changes created by the combustion air system and opens or closes an electrical circuit based on preset operating conditions. The switch is mounted near the inducer assembly and connects to the airflow sensing tubing and control circuit in HVAC systems. It confirms safe operating conditions, prevents burner operation during airflow faults, and supports accurate heating equipment protection.
