Johnson Controls T-4516-202 Thermostat

The Johnson Controls T-4516-202 is a professional-grade Dual Temperature High Volume Output Thermostat designed for precision control in pneumatic HVAC systems. Engineered for direct acting logic, this vertical-mount controller features a dual-dial configuration with a setpoint range of 55 to 85°F, allowing for distinct day and night or heating and cooling calibrations. With a high 400 SCIM flow capacity and a low 20 SCIM air consumption rate, the T-4516-202 ensures rapid actuator response while maintaining system efficiency. It operates on a 13 to 25 psig supply pressure range, making it a reliable drop-in replacement for aging pneumatic controls in commercial facilities. The rugged construction and field-proven design of the T-4000 series provide stable pneumatic temperature control even in high-demand environments. Contractors favor this model for its straightforward vertical mounting layout and consistent sensitivity, ensuring accurate branch pressure modulation across various air handling applications.

Key Benefits:

• High Volume Output: Delivers up to 400 SCIM to drive multiple actuators or long pipe runs without lag.
• Dual Dial Logic: Enables separate temperature setpoints for versatile facility scheduling.
• Efficient Air Usage: Rated at 20 SCIM air consumption to minimize compressor load.
• Standardized Integration: Fits 13-25 psig supply lines for seamless field installation.

Common Questions:

How do I calibrate the T-4516-202 for specific branch pressures?
Field calibration is performed by adjusting the setpoint dials and verifying the branch line output with a gauge to match the specific requirements of your direct-acting actuators.

Can this thermostat be mounted horizontally?
No, this specific model is designed for vertical mounting to ensure internal components and bimetal elements function according to factory specifications.

What is the difference between direct acting and reverse acting in this series?
The T-4516-202 direct acting model increases branch pressure as the temperature rises, which is critical for specific valve and damper configurations.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.