Johnson Controls A19AAC-4C Temperature Control 0-80°F Range with 5°F Fixed Differential

The Johnson Controls A19AAC-4C is a line voltage thermostat designed for simple, reliable temperature control in commercial and industrial HVAC applications. This controller features a temperature range of 0 to 80°F, making it suitable for refrigeration, cooling, and cold storage applications requiring precise temperature management.

Key Features:

• Temperature range: 0°F to 80°F for cold temperature applications
• Fixed 5°F differential for consistent control cycling
• Screwdriver adjustment for secure, tamper-resistant setpoint changes
• Line voltage operation eliminates the need for transformers
• Single-stage control for heating or cooling systems
• Durable construction for long-term reliability in demanding environments

The fixed differential of 5°F means the system will cycle on and off within a 5-degree range of the setpoint, providing stable temperature control while preventing excessive cycling. The screwdriver adjustment feature requires a tool to change settings, making it ideal for commercial applications where unauthorized adjustment needs to be prevented.