Johnson Controls T-5002-201 Transmitter

The Johnson Controls T-5002-201 is a high-precision pneumatic room temperature transmitter engineered for demanding commercial HVAC environments. This unit operates as a direct acting device, translating ambient space temperature into a proportional 3 to 15 psig pneumatic output signal. Designed for integration with receivers, controllers, and building automation systems, it features a calibrated 50 to 100 degree Fahrenheit range. The transmitter requires a steady 20 psig supply pressure and maintains high efficiency with a minimal 20 SCIM air consumption rate. With an output flow capacity of 400 SCIM, the T-5002-201 ensures rapid response times and stable signal transmission across long pneumatic lines. Built for durability and technical accuracy, this Johnson Controls pneumatic transmitter is a staple for contractors maintaining legacy pneumatic infrastructure where reliable space temperature sensing and HVAC signal conversion are critical for system performance.

Technical Specifications & Key Benefits

• Direct Acting Operation: Ensures a linear relationship between temperature increase and output pressure for straightforward calibration.
• High Flow Capacity: The 400 SCIM output flow allows for the control of multiple pneumatic actuators or long-distance signal transmission without significant lag.
• Low Air Consumption: Optimized for pressurized systems, consuming only 20 SCIM to reduce the load on the facility air compressor.
• Standard Pressure Range: Seamlessly integrates with standard 3-15 psi pneumatic controllers and receivers.
• Broad Measuring Range: Specifically tuned for 50 to 100 degree F comfort cooling and heating applications.

Common Installation & Engineering Questions

What is the proper supply pressure for the T-5002-201?
This transmitter requires a regulated supply of 20 psig (± 1 psig). Fluctuations in supply pressure can lead to inaccuracies in the 3 to 15 psig outlet signal, so utilizing a high-quality filter-regulator upstream is recommended.

Can this unit be used for indirect acting sequences?
No, the T-5002-201 is a direct acting transmitter. If your control sequence requires an increase in pressure as temperature drops, you must utilize a reversing relay or an indirect-acting controller in the loop.

How do I calibrate the T-5002-201 in the field?
Calibration involves verifying the output pressure at a known ambient temperature. For example, at 75°F (mid-point of the hardware range), the output should ideally be 9 psig. Adjustments should be made using the internal calibration screw while monitoring a precision test gauge.

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.