Siemens Building Technology 193-217 Pneumatic Room Thermostat Heat R/A Cool D/A Dual Set Point

Siemens 193-217 Thermostat Pneumatic Room is designed to control heating and cooling systems in HVAC applications. It includes a dual set point thermostat that gives you the ability to fine tune your temp, between 45°F and 85°F, with reverse acting heating and direct acting cooling. The temperature is controlled by modulation of air pressure during pneumatic operation, and the performance is steady and dependable. This thermostat mounts on a 2 pipe system and easily integrates into HVAC systems, yet controls temperature by altering airflow to keep a room at the proper temperature. The reverse acting mechanism is useful for heating systems because it decreases the heating output with increasing temperature.