Powerstar Single Set Point Thermostat Cover w/ Exposed Thermometer

Providing proportional dual set point, 2-pipe or 3-pipe high air capacity pneumatic room temperature control, the 192 DN or DNC Powerstar Pneumatic Room Thermostat automatically resets the room temperature set point during unoccupied hours by changing the air pressure to the thermostat. A manual override feature allows occupants to switch to day mode. The override returns to night mode the following night. Application: The 192 DN and DNV Powerstar Pneumatic Room Thermostat controls valves and damper actuators in cooling equipment, automatically performing setback changes from day to night. The 192 DNV also performs a purge sequence at night to bring in "vent" outside air to cool the building. A manual override selector switch allows individual room or zone "day" control locally during the night cycle. Features: Adjustment set point key Indicator set point exposed Chassis thermometer exposed Use with 1/2? set point knob option