Johnson Controls T-3610-1003 Pneumatic Low Limit Controller with 18" Rigid Stem

The Johnson Controls T-3610-1003 is a pneumatic low limit controller designed for HVAC duct applications. Part of the Series T-3610 line, this controller provides reliable freeze protection and low temperature limit control in heating and ventilation systems.

Key Features:

• 18-inch rigid stem element for deep duct insertion and accurate temperature sensing
• Pneumatic operation - no electrical power required
• Includes duct mounting bracket for secure installation
• Low limit control prevents coil freeze-up in air handling units
• Rugged construction for commercial HVAC applications
• Direct acting control for reliable temperature monitoring

This controller is commonly used in air handling units, fan coil units, and duct systems where freeze protection is critical. The extended 18-inch stem allows the sensing element to reach deep into the duct to accurately monitor air temperature. The pneumatic design makes it ideal for installations where electric controls are not practical or desired.