Honeywell TP971A2011 Pneumatic Thermostat Direct Acting 2-Pipe Day/Night Heating

The Honeywell TP971A2011 is a direct-acting pneumatic thermostat designed to provide proportional control of pneumatic valves and damper actuators in commercial heating and air conditioning systems. This two-pipe thermostat features dual day/night setpoints for enhanced energy efficiency through automatic temperature setback during unoccupied hours.

Key Features:

• Direct acting operation with 13 PSI day and 18 PSI night switchover pressure
• Dual temperature setpoints: 59-86°F (15-30°C) day range and 50-81°F (10-27°C) night range
• Throttling range of 2°F to 10°F for precise proportional control
• Pilot operated design for high capacity applications
• Durable TP970 series construction with molded air connections on backplate
• Replaceable air filter for long-term reliability
• Universal locking cover with satin chrome finish (cover sold separately)
• Adapter plate included in kits to cover existing thermostat watermarks

This thermostat is compatible with replacement kits for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell two-pipe pneumatic thermostats, making it an ideal retrofit solution for commercial building automation systems. The backplate features integrated molded air connections, eliminating the need for separate fittings and simplifying installation.