Description
The Johnson Controls T-4506-203 is a dual temperature, direct acting pneumatic thermostat engineered for reliable climate control in commercial HVAC applications. Designed for horizontal mounting, this thermostat delivers precise pneumatic control without an indexing switch, making it ideal for systems requiring automatic seasonal switchover.
Key Features
- Dual temperature operation with automatic switchover at 17 Psig
- Direct acting control action for straightforward pneumatic system integration
- Horizontal mounting configuration for flexible installation
- Without indexing switch — simplified, streamlined design
- 400 SCIM flow capacity for responsive system performance
- 20 SCIM air consumption for efficient pneumatic operation
- 13 to 25 Psig supply pressure range
- 55 to 85°F dial range for comfortable zone temperature control
Technical Specifications
- Model: T-4506-203
- Brand: Johnson Controls
- Control Type: Pneumatic, Direct Acting
- Mounting: Horizontal
- Switchover Pressure: 17 Psig
- Flow Capacity: 400 SCIM
- Air Consumption: 20 SCIM
- Supply Pressure: 13 to 25 Psig
- Dial Range: 55 to 85°F
- Indexing Switch: None
Applications
The T-4506-203 is well-suited for commercial buildings, institutional facilities, and industrial environments where pneumatic control systems manage heating and cooling zones. The dual temperature capability allows the thermostat to automatically adapt between heating and cooling seasons based on the pneumatic switchover signal, reducing the need for manual intervention and supporting consistent occupant comfort year-round.
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