Johnson Controls T-4000-2146 Plastic Cover

The Johnson Controls T-4000-2146 is a professional-grade vertical pneumatic thermostat cover designed for heavy-duty commercial and industrial HVACR environments. This beige plastic enclosure is specifically engineered for the Johnson Controls T-4000 series, providing a precise fit for vertical mounting configurations. It features a built-in ?F/?C thermometer and a setpoint window, allowing for immediate visual verification of ambient temperature and control settings without removing the housing. For technicians managing high-traffic areas, this replacement thermostat cover serves as a durable barrier against physical impact and environmental debris, ensuring the internal sensing elements remain protected. The design incorporates an exposed setpoint for easy adjustments by authorized personnel while maintaining a clean, professional aesthetic in building automation systems. Whether you are performing a routine HVAC control system upgrade or replacing a damaged unit, the T-4000-2146 provides the precise geometry required for seamless pneumatic thermostat integration, ensuring the T-4000-2146 plastic cover maintains system integrity and local monitoring accuracy.

Key Benefits

• Direct Compatibility: Specifically engineered for the Johnson Controls T-4000 series pneumatic thermostats.
• Integrated Monitoring: Includes a dual-scale ?F/?C thermometer and a setpoint window for rapid field diagnostics.
• Durable Construction: High-impact beige plastic resists cracking and protects sensitive bimetal sensing elements.
• Professional Finish: Features the official Johnson Controls logo and a vertical orientation for standard wall-plate alignment.
• Operational Efficiency: The exposed setpoint window allows for quick temperature calibrations by maintenance staff.

Common Questions

Is this cover compatible with horizontal T-4000 models?
No, the T-4000-2146 is strictly designed for vertical mount applications. Using it on a horizontal base will result in misaligned windows and a lack of proper thermometer orientation.

Does it include the thermometer, or is it just the plastic housing?
This SKU is a complete assembly that includes the plastic cover, the integrated thermometer, and the setpoint window hardware.

Will this fit pneumatic thermostats from other manufacturers?
This cover is specifically molded for the Johnson Controls T-4000 chassis. While it may appear similar to other brands, the internal latching points and setpoint window location are proprietary to Johnson Controls equipment.

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.