Built with a rugged carbon steel housing

or 35 psig steam applications

Where should the 30-inch capillary sensing bulb be mounted

By mounting conductive probes in an external chamber

Running a system without a functional 200F auto limit switch creates a significant safety hazard

Siemens Building Technology QAA2235.EWSN Sensor mario Built with a rugged carbonThe Siemens QAA2235. EWSN is a precision room temperature sensor engineered for seamless integration into commercial Building Automation Systems (BAS). Utilizing a 100k Ohm thermistor active output, this unit provides highly stable and linear temperature feedback to HVAC controllers, ensuring tight deadband management and optimized energy efficiency. Designed specifically for indoor comfort monitoring, it operates across a standard range of 32F to