System Protection: Acts as a safety limit to prevent the defrost heater from running continuously

Full Port Design: 1-inch NPT threaded connections with a full port orifice maximize CV flow rates and minimize turbulence

Durable Construction: Laser-welded stainless steel design eliminates internal soft seals

Key Benefits: Self-Centering Precision: Automatically aligns with the shaft to ensure uniform torque distribution

you must use a switch that matches the manufacturer-specified pressure rating

Johnson Controls M9220-AGA-3 Actuator 320074-702 System Protection: Acts as aThe Johnson Controls M9220 AGA 3 is a heavy duty spring return direct coupled actuator designed for floating control applications in demanding HVACR systems. Delivering a robust 177 lb in torque, this 24Vac Vdc actuator is engineered for precise positioning of large dampers and valves, ensuring reliable fail safe operation during power loss. With a 150 second power on run time, it provides smooth, consistent modulation without hunting. This model