Overview
The Johnson Controls T-4752-202 is a high-volume output pneumatic heating-cooling room thermostat engineered for climate control in commercial and industrial HVAC applications. It provides automatic changeover between heating and cooling sequences based on supply pressure changes.
Features
- Automatic changeover between direct and reverse acting modes
- High-volume airflow capacity
- Exposed single control dial with Fahrenheit scale
- Adjustable sensitivity slider for precision calibration
Specifications
- Thermostat Action: 15 psig direct acting for heating, 20 psig reverse acting for cooling
- Factory Switchover Pressure: 17.5 psig
- Temperature Control Range: 55 to 85 degrees Fahrenheit
- Flow Capacity: 400 SCIM output, 20 SCIM air consumption
- Mounting Style: Vertical
- Air Connections: 5/32 inch barbed fittings
Applications
- Ideal for use in commercial buildings, schools, and hospitals utilizing pneumatic HVAC control systems
- Dual-temperature sequences serving both heating and cooling zones
- Standard vertical wall installations


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