Description
The Johnson Controls T-4506-202 is a dual temperature, direct acting pneumatic thermostat engineered for reliable climate control in commercial and industrial HVAC applications. Designed for vertical mounting, this thermostat features an indexing switch that enables automatic switchover between heating and cooling modes at 17 Psig, making it an ideal solution for two-pipe pneumatic systems that serve both seasons without manual intervention.
With a 55 to 85°F dial range, the T-4506-202 provides precise temperature setpoint adjustment across a broad comfort band. Its direct acting control action increases branch pressure output as the space temperature rises, ensuring accurate and responsive system response. The thermostat operates on a 13 to 25 Psig supply pressure range and delivers a 400 SCIM flow capacity with a low 20 SCIM air consumption, minimizing demand on the pneumatic supply system while maintaining dependable control authority.
Key Features
- Dual temperature operation — automatically switches between heating and cooling modes
- Direct acting control action for responsive pneumatic output
- Vertical mounting orientation for standard wall installation
- Indexing switch for automatic seasonal changeover at 17 Psig switchover pressure
- 55 to 85°F dial range for broad comfort zone coverage
- 13 to 25 Psig supply pressure range
- 400 SCIM flow capacity for strong control authority
- Low 20 SCIM air consumption to reduce load on pneumatic supply
Specifications
- SKU: T-4506-202
- Brand: Johnson Controls
- Control Action: Direct Acting
- Mounting: Vertical
- Switchover Pressure: 17 Psig
- Supply Pressure Range: 13 to 25 Psig
- Flow Capacity: 400 SCIM
- Air Consumption: 20 SCIM
- Dial Range: 55 to 85°F
- Switch Type: Indexing Switch
Application
The T-4506-202 is well-suited for two-pipe pneumatic HVAC systems in commercial buildings, schools, hospitals, and other facilities where a single thermostat must manage both heating and cooling seasons. The built-in indexing switch eliminates the need for manual changeover, reducing maintenance requirements and ensuring consistent occupant comfort year-round.
Reviews
There are no reviews yet.