Honeywell TP971C2009 3-Pipe Pneumatic Thermostat Direct Acting Day/Night

The Honeywell TP971C2009 pneumatic thermostat for 3 pipe heating and cooling systems. A specific temperature setpoint is maintained by directly controlling the heating and cooling valves. This is a pneumatic signal-based thermostat, which receives air pressure signals from the control system and adjusts the valve positions accordingly. By automatically lowering the temperature during unoccupied periods, this model has day/night setback capabilities offering energy savings. It is a suitable thermostat for use with a variety of commercial and industrial applications. The benefits include improved energy efficiency, improved occupant comfort, and simplified system operation.