Siemens Building Technology QAA2212.EWNN Sensor 318973-401 internal dimensions and flame retention

internal dimensions and flame retention head geometry are specific to Beckett’s design standards to ensure safe operation

Direct Fit Replacement: Standard mounting allows for rapid installation in existing limit control brackets

If your Beckett burner has a standard F-head air tube of 9 inches or less

significantly reducing diagnostic time on the job site

Siemens Building Technology QAA2212.EWNN Sensor 318973-401 internal dimensions and flame retentionThe Siemens Building Technology QAA2212. EWNN Sensor is a high precision room temperature sensor designed for accurate environmental monitoring in commercial and industrial HVACR control systems. This passive sensor utilizes a Platinum 1K Ohm Pt RTD (Resistance Temperature Detector) with a 385 alpha coefficient, ensuring stable resistance output and long term reliability without the drift common in lower grade components. Built for seamless