Johnson Controls A25AN-1C Warm Air Limit Control

Johnson Controls A25AN-1C Warm Air Limit Control is a SPST air temperature control with a manual reset. This compact limit switch is designed to protect heating equipment by quickly opening the circuit when the air temperature rises above the setpoint. With a high-limit trigger at 215°F and a reset required at ambient or lower temperatures, it provides reliable overheat protection for furnaces, air handlers, and ductwork. The setpoint range spans from 25°F to 215°F, giving installers flexibility across various systems. Designed for long service life in commercial or residential installations, its robust construction supports reliable operation, easy wiring, and quick mounting. Built by Johnson Controls, it combines durable construction with dependable performance.

• SPST wiring for straightforward installation
• Manual reset ensures safe recovery after trip
• Open-high action at 215°F for precise protection
• Setpoint range from 25°F to 215°F
• Rugged enclosure suitable for harsh HVAC environments

Keep your heating system safe, efficient, and compliant with a trusted furnace limit control designed for furnace safety, air handler protection, and ductwork reliability.