Johnson Controls T-3610-1003 Thermostat

The Johnson Controls T-3610-1003 is a specialized pneumatic low limit thermostat engineered for high-accuracy sensing in HVAC duct applications. Featuring an 18-inch rigid stem element and a dedicated duct mounting bracket, this controller excels in discharge air temperature monitoring and low-limit freeze protection. This unit operates as a proportional direct acting device, translating temperature changes into precise branch pressure adjustments within a sensitivity range of .25 to .75 psi. The rigid sensing element is built for industrial durability, supporting an operating range of 0 to 270 degrees Fahrenheit. For seamless integration into existing pneumatic loops, the T-3610-1003 includes a 1/8" NPT barbed fitting compatible with standard 5/32" or 1/4" OD polytubing. Technicians rely on this rigid stem controller for its repeatable setpoint stability and robust mechanical construction in critical airflow monitoring environments.

• Precision Control: High-sensitivity pneumatic feedback ensures accurate response to minor temperature fluctuations.
• Durable Construction: The 18-inch rigid stem is designed for direct insertion into ductwork, resisting vibration and harsh airflows.
• Universal Compatibility: Standard barbed fittings allow for easy replacement or retrofit into most Johnson Controls pneumatic systems.
• Direct Acting Logic: Provides immediate branch pressure increases as the sensed temperature rises, streamlining system calibration.

How do you calibrate the sensitivity on a T-3610-1003?
Calibration is achieved by adjusting the internal sensitivity screw to match the required psi-per-degree change necessary for the specific pneumatic actuator or relay being controlled.

What is the maximum ambient temperature for the controller head?
While the sensing element handles up to 270 degrees, the controller head should be maintained within standard pneumatic thermostat ambient limits to prevent component fatigue.

Can this be used for both heating and cooling applications?
Yes, provided the proportional direct acting logic aligns with your sequence of operation, typically utilized in low-limit or discharge air monitoring.

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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.