Description
The Johnson Controls T-4506-204 is a dual temperature, direct acting pneumatic thermostat engineered for reliable climate control in commercial and industrial HVAC systems. Designed for vertical mounting, this thermostat delivers precise pneumatic output modulation across both heating and cooling seasons without the need for an indexing switch — switchover between operating modes is handled automatically at 17 psig.
Key Features
- Dual temperature operation — handles both heating and cooling seasons in a single device
- Direct acting control action for straightforward pneumatic output response
- Vertical mounting orientation for standard wall installation
- Automatic season switchover at 17 psig — no indexing switch required
- Wide 55°F to 85°F dial range for flexible setpoint adjustment
- High 400 SCIM flow capacity supports responsive pneumatic system performance
- Low 20 SCIM air consumption minimizes compressed air demand
- Compatible with 13 to 25 psig supply pressure systems
Specifications
- SKU: T-4506-204
- Brand: Johnson Controls
- Control Type: Pneumatic, Direct Acting
- Temperature Type: Dual Temperature (Heating & Cooling)
- Mounting Orientation: Vertical
- Indexing Switch: None (Without Indexing Switch)
- Season Switchover Pressure: 17 psig
- Flow Capacity: 400 SCIM
- Air Consumption: 20 SCIM
- Supply Pressure Range: 13 to 25 psig
- Dial Temperature Range: 55°F to 85°F
Application
The T-4506-204 is ideally suited for commercial building HVAC pneumatic control systems where a single thermostat must manage both heating and cooling seasons. Its direct acting output, high flow capacity, and low air consumption make it an efficient and dependable choice for facilities requiring accurate zone temperature control with minimal compressed air usage.
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