Johnson Controls T-4002-123 Connector

The Johnson Controls T-4002-123 is a specialized terminal connector engineered for high-performance pneumatic control systems. This 2-pipe pneumatic fitting features dual angle fittings specifically designed for surface-mounted T-4000 series thermostats where exposed tubing is utilized. Constructed for professional-grade HVACR applications, the T-4002-123 facilitates a secure, leak-resistant interface between 5/32" O.D. polyethylene tubing and the pneumatic instrument body, ensuring reliable signal transmission for proportional temperature control.

As a critical component in Johnson Controls pneumatic systems, this connector simplifies the rough-in process and subsequent instrument mounting. The angle terminal configuration provides the necessary clearance for streamlined tubing runs in tight enclosures or decorative covers, maintaining a flush profile against the mounting bracket. Whether you are performing a pneumatic thermostat conversion or a new 2-pipe installation, this fitting eliminates the risk of tube kinking and ensures the proportional output signal is delivered accurately to valves and dampers without pressure drop.

• Optimized Compatibility: Purpose-built for the T-4000 series pneumatic thermostats and 2-pipe control configurations.
• Precision Geometry: Angle fitting design allows for clean, professional exposed tubing management without stress on the connections.
• Secure Interfacing: Engineered for a snap-in fit to the mounting bracket, providing a stable foundation for the instrument’s barbed air terminals.
• Standardized Sizing: Designed for seamless integration with industry-standard 5/32" O.D. polytubing.

Common Questions:

Can the T-4002-123 be used with 1/4" tubing?
While the connector is designed for 5/32" O.D. polyethylene tubing, technicians can adapt 1/4" lines using standard reducers or short lengths of 5/32" tubing as couplers for the terminal connection.

Is this connector suitable for high-volume output thermostats?
Yes, it is fully compatible with high-volume output models like the T-4002, handling the standard 20 PSIG supply pressure and supporting the required flow capacity for pneumatic actuators.

How does the angle fitting improve installation over straight fittings?
The 90-degree angle reduces the footprint of the tubing behind the thermostat cover, preventing kinks and allowing for a more compact surface-mount assembly, especially in high-traffic or limited-space environments.

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.