Siemens Building Technology QAA2212.EWSN Sensor 326010-701 it features an Open Air

it features an Open Air Over (OAO) enclosure to maximize heat dissipation during continuous operation

Key Benefits Natural Gas and LP Compatibility: Ships with both Y90AA-3223 (NG) and Y90AA-4212 (LP) orifices for immediate job-site flexibility

This unit is frequently utilized in Raypak 1020–1820 series and Hi Delta models

Contractor Ready: Convenient 10-pack ensures technicians have the necessary parts for LP conversion kits and routine seasonal maintenance

The MNPT union inlet and FNPT outlet configuration allows for a secure radiator steam trap installation without disturbing existing piping

Siemens Building Technology QAA2212.EWSN Sensor 326010-701 it features an Open AirThe Siemens Building Technology QAA2212. EWSN is a professional grade Room Temperature Sensor engineered for high precision environmental monitoring in commercial and industrial HVACR applications. This passive RTD sensor utilizes a Platinum 1k Ohm (385 Alpha) sensing element to provide stable and accurate resistance feedback to the building automation system (BAS). Designed with a clean, no display white enclosure featuring the Siemens logo, it is