Siemens Building Technology QAA2235.EWSN Sensor 326010-701 always verify the part number

always verify the part number and technical specifications against your specific system wiring diagram

This left side close off panel seals the gaps between the internal coil and the exterior cabinet

Common Questions: Will this replace my Honeywell L4064B

Key Benefits for Technicians Precision Alignment: Engineered to eliminate mechanical play between the 8-inch valve shaft and the actuator

Industrial Build Quality: Features a resilient aluminum body and a 208/240V coil designed for continuous duty cycles

Siemens Building Technology QAA2235.EWSN Sensor 326010-701 always verify the part numberThe 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