field-proven sensor is necessary

Why is my pilot light dropping out even with a new thermocouple installed

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

Precise Thermal Calibration: Features a factory-set 240-degree Fahrenheit thermal cutout to protect the heat exchanger from damage

Versatile Voltage Compatibility: Rated for use with 120V

Siemens Building Technology RAA20U Thermostat Els PW 17895 field-proven sensor is necessaryThe 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