Enhanced Heat Exchange: Optimized condenser coil fin density ensures maximum heat rejection even during high-ambient outdoor temperatures

3-Position Configuration: Provides crisp

eliminating the need for field modifications and reducing labor time during critical service calls

By allowing for two distinct mounting orientations

Key Benefits Heavy-duty steel braided construction protects the internal signal wires from mechanical abrasion and electromagnetic interference

Siemens Building Technology QAA2230.EWSN Sensor 321894-709 Enhanced Heat Exchange: Optimized condenserThe Siemens Building Technology QAA2230. EWSN is a professional grade room temperature sensor engineered for precise environmental monitoring in commercial and industrial HVAC applications. This 10k Ohm Type 2 thermistor offers high accuracy sensing within a range of 32F to 122F (0C to 50C), making it a staple for Building Automation Systems (BAS) requiring reliable NTC resistance signals. Designed as a "blank front" unit, the EWSN model features no