193-218 Siemens Thermostat

This Powerstar Free Energy Band (TM) Pneumatic Room Thermostat with relay is reverse acting for heating and cooling applications. It has a 4 degree (Fahrenheit) deadband between the heating and cooling changeover, dual setpoint, dual output, two-pipe, high air capacity for room temperature control, and 18 to 25 psi air supply. Fahrenheit scale. Wall plate and mounting screws are included.; The Siemens 193-218 P’STAR FEB STAT,H/C,RA/RA