Designed as a rugged OEM replacement part for York and Johnson Controls equipment

and CWN series

low-impedance connections for critical control data

Sleek Professional Finish: The deep black color provides a modern

Siemens Building Technology RAA20U Thermostat Els PW 17895 Designed as a rugged OEMThe Siemens RAA20U Thermostat is a high performance mechanical solution designed for precision temperature control in heating only or cooling only applications. Functioning as a two wire, gas diaphragm based room thermostat, this unit offers a reliable two position (on off) control algorithm suitable for both 24V low voltage and line voltage systems (24 to 277 Vac). As a veteran technician knows, the Siemens RAA20U is the direct replacement for 1A10