This critical HVAC safety switch prevents thermal runaway and potential heat exchanger damage by ensuring the system shuts down before exceeding safe operating parameters

Engineering this unit into your sequence provides a localized B-AAC (BACnet Advanced Application Controller) capable of stand-alone operation or seamless integration into a larger building automation system

For proper operation and to meet most local codes

allowing for rapid restoration of sensor-to-board communication

dust-protected contact performance

Reznor 155635 Inlet 322056-301 This critical HVAC safety switchThe Reznor 155635 Combustion Air Inlet is a critical OEM component designed for high efficiency Reznor unit heater systems. This precision engineered intake assembly ensures proper airflow for complete combustion, maintaining the system's thermal efficiency and preventing premature heat exchanger wear. Built for durability in commercial and industrial settings, this replacement combustion air inlet features a robust construction that withstands the