Description
The Johnson Controls T-4756-205 is a commercial-grade pneumatic heating-cooling thermostat engineered for high volume output applications in building automation and HVAC control systems. Designed for horizontal mounting, this thermostat delivers reliable dual-mode pneumatic control with 15 PSIG reverse acting operation for heating and 20 PSIG direct acting operation for cooling, making it an ideal solution for VAV systems, fan coil units, and other pneumatically controlled HVAC equipment.
Key Features
- High volume pneumatic output for responsive, precise zone control
- 15 PSIG reverse acting operation — ideal for heating control sequences
- 20 PSIG direct acting operation — ideal for cooling control sequences
- Horizontal mounting configuration for flexible installation
- Dual heating-cooling functionality in a single thermostat
- Designed for commercial building automation and HVAC pneumatic control systems
- Durable construction suited for demanding commercial environments
Product Specifications
- Brand: Johnson Controls
- Model / SKU: T-4756-205
- Control Type: Pneumatic
- Application: Heating-Cooling
- Output Type: High Volume
- Reverse Acting Pressure: 15 PSIG
- Direct Acting Pressure: 20 PSIG
- Mounting Orientation: Horizontal
Applications
- Commercial building HVAC pneumatic control systems
- Variable Air Volume (VAV) systems
- Fan coil unit control
- Dual-duct and multi-zone pneumatic systems
- Retrofit and replacement of legacy pneumatic thermostats
The T-4756-205 is part of Johnson Controls’ trusted line of pneumatic thermostats, offering proven reliability and compatibility with standard pneumatic control architectures. Its high volume output capability ensures fast, accurate response to space temperature changes, reducing energy waste and improving occupant comfort in commercial settings.
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