Johnson Controls T-4002-302 Pneumatic Thermostat 55-85°F Range

The Johnson Controls T-4002-302 is a pneumatic room thermostat designed for precise temperature control in HVAC applications. This 2-pipe reverse acting (RA) thermostat provides reliable pneumatic control with a temperature range of 55 to 85 degrees Fahrenheit, making it ideal for commercial and industrial heating and cooling systems.

Key Features:

• Pneumatic operation for dependable temperature control without electrical power
• Reverse acting (RA) configuration for compatibility with specific valve types
• Adjustable setpoint range from 55°F to 85°F
• 2-pipe system design for heating or cooling applications
• Includes white cover and conversion kit for installation flexibility
• Durable construction for long-term reliability in commercial environments

This thermostat is designed for use with pneumatic HVAC control systems where compressed air signals control valve actuators. The reverse acting configuration means the thermostat output pressure decreases as temperature rises, making it suitable for heating applications with normally open valves or cooling applications with normally closed valves.