Description
The Schneider Electric (Barber Colman) TK-1101 is a reverse-acting pneumatic room thermostat engineered for 2-pipe cooling applications in commercial and institutional buildings. Designed for reliable pneumatic control, this thermostat delivers precise temperature regulation using compressed air, making it an ideal replacement or upgrade for legacy pneumatic HVAC systems.
Key Features
- Reverse-acting operation — output pressure decreases as room temperature rises, ideal for cooling valve control
- 2-pipe pneumatic system design for straightforward installation and maintenance
- 55–85°F dial range with a 75°F factory setpoint for immediate out-of-box deployment
- Adjustable throttling range: 2–10°F at 10 PSI, allowing fine-tuned sensitivity to match system requirements
- Compatible with 15 PSIG or 20 PSIG supply air pressure systems
- 5/32″ plastic tubing connection for lightweight, corrosion-resistant pneumatic hookup
Technical Specifications
- Control Type: Pneumatic, Reverse Acting
- Application: Cooling
- Pipe Configuration: 2 Pipe
- Temperature Dial Range: 55°F – 85°F
- Factory Setpoint: 75°F
- Throttling Range: Adjustable 2–10°F at 10 PSI
- Supply Air Pressure: 15 PSIG or 20 PSIG
- Tubing Connection: 5/32″ Plastic Tubing
Application & Compatibility
The TK-1101 is well-suited for commercial office buildings, schools, hospitals, and other facilities running pneumatic HVAC control systems. Its reverse-acting logic ensures that as the space warms above setpoint, branch pressure decreases to open cooling valves and increase airflow — providing responsive, energy-efficient comfort control. The wide 55–85°F dial range and adjustable throttling range give building operators and controls technicians the flexibility to dial in precise comfort levels for any zone.
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