a fouled or cracked HVAC flame sensor is a primary culprit for erratic ignition sequences

Key Benefits for Technicians: Optimized Core Composition: The 80/20 solid core provides superior moisture and acid capacity

and 2721-657

If the switch is open at room temperature and refuses to reset via the manual button

functioning as a normally open automatic limit switch that triggers during thermal overload

KMC Controls CSC-2017 Control Els PW 17895 a fouled or cracked HVACThe KMC Controls CSC 2017 is a high performance pneumatic VAV reset volume controller engineered for precise airflow management in commercial HVAC systems. As a differential pressure sub master controller, this unit is specifically designed for normally open VAV terminal units using a direct acting (DA) configuration. It features a 2 inch water column (WC) range with a low consumption design, ensuring optimal energy efficiency while maintaining