Johnson Controls T-8000-3 Controller

The Johnson Controls T-8000-3 is a high-performance pneumatic remote element controller engineered for precise proportional control in demanding HVAC applications. This non-compensated capillary unit features a dual-scale dial, covering temperature ranges of -10 to 124°F and 110 to 244°F, making it a versatile solution for air handling units and process temperature control. Equipped with a 15-foot copper capillary and a robust bulb element, it provides reliable sensing in remote locations where direct mounting is impractical. The T-8000-3 operates with a pneumatic output signal, ensuring seamless integration into existing Johnson Controls pneumatic systems. Designed for durability and repetitive accuracy, this controller allows for field-adjustable sensitivity settings to fine-tune throttling ranges. Contractors rely on the T-8000 series for its mechanical simplicity and long-term stability in industrial climate control environments where electronic interference or power availability is a concern.

• Dual-Scale Versatility: Supports both low and high-temperature ranges with a single two-sided dial.
• Extended Reach: The 15-foot remote capillary allows for flexible bulb placement in ducts or tanks while keeping the controller accessible.
• High-Precision Proportional Action: Delivers modulated pneumatic pressure to actuators for stable temperature regulation.
• Durable Construction: Built to withstand the rigors of boiler rooms and mechanical spaces without the need for complex electronics.

How do you calibrate the T-8000-3 sensitivity?
Sensitivity is adjusted by moving the proportional band slider on the internal scale, which dictates the change in output pressure per degree of temperature deviation.

Can the T-8000-3 be used for both heating and cooling applications?
Yes, the proportional action can be configured for direct or reverse acting requirements depending on the pneumatic actuator and valve configuration.

What is the maximum ambient temperature for the controller body?
While the bulb handles higher ranges, the controller housing should be mounted in environments not exceeding 150°F to ensure pneumatic component integrity.

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.