Siemens 192-203 2-Pipe Pneumatic Room Temperature Thermostat

The Siemens TH 192 S Thermostat is a proportional single output, single set point, 2-pipe (high air capacity) sensor controller. It includes a wall mounting plate for installation in a variety of rough in terminal boxes. A sensitive bimetal responds to temperature change to modulate control air through a flapper nozzle. One set point dial (Fahrenheit scale) is provided. Mounting screws are included. This thermostat is a temperature sensing device that controls pneumatic valve and damper actuators in heating and cooling applications such as air conditioners, space heaters, unit ventilators, and air volume controllers. The thermostat maintains energy management (maximum economy) and occupant comfort. The cover is designed to expose the set point adjustment dial.