Description
The Johnson Controls T-4100-2 is a single-temperature, low-volume output pneumatic thermostat engineered for precise climate control in commercial and industrial HVAC systems. Designed for vertical wall mounting, this reverse-acting thermostat delivers reliable pneumatic output to control dampers, valves, and other pneumatically operated equipment.
Key Features
- Single-temperature pneumatic thermostat with low-volume output
- Reverse-acting operation — output pressure decreases as temperature rises
- Fahrenheit dial with a 55°F to 85°F setpoint range
- Compatible with 13 to 25 psig supply pressure
- Low-volume output: 45 SCIM with a .007″ restrictor
- Low-volume output: 25 SCIM with a .005″ restrictor
- Vertical mount design for standard wall installation
Specifications
- SKU: T-4100-2
- Brand: Johnson Controls
- Action: Reverse Acting
- Scale: Fahrenheit
- Dial Range: 55°F to 85°F
- Supply Pressure: 13 to 25 psig
- Output Volume (with .007″ restrictor): 45 SCIM
- Output Volume (with .005″ restrictor): 25 SCIM
- Mounting Orientation: Vertical
Application
The T-4100-2 is ideal for use in pneumatic control systems where space-saving, low-volume output thermostats are required. Its reverse-acting logic makes it well-suited for cooling applications where a rise in temperature should reduce output pressure to open valves or dampers. The broad supply pressure compatibility of 13–25 psig ensures seamless integration with most standard pneumatic control systems found in commercial buildings.
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