Johnson Controls M9124-AGC-2 Actuator

The Johnson Controls M9124-AGC-2 Actuator is a robust, non-spring return direct coupled actuator engineered for high-torque HVAC applications. Delivering 210 lb-in torque (24 Nm), this series is ideal for precisely positioning air dampers and valves in complex commercial environments. This 24V motor actuator supports both floating control and two-position (On/Off) operations, making it a versatile choice for air handling units and large terminal boxes. The M9124-AGC-2 features 1/4" spade terminals for secure electrical connections and includes two SPDT auxiliary switches for end-stop signaling or auxiliary equipment interlocking. With a 115-175 second travel time, the synchronous motor provides consistent, repeatable timing across a 90° rotation. Its direct-mount design eliminates the need for expensive linkages, easily attaching to 3/8" to 3/4" round shafts or 3/8" to 5/8" square shafts. The integrated electronic stall detection protects the motor by deactivating power when a blockage is detected, ensuring reliable long-term performance without mechanical stress.

Key Benefits

• High running torque of 210 lb-in allows for secure operation of large dampers or VG1000 Series ball valves with appropriate linkages.
• Integrated dual SPDT auxiliary switches simplify commissioning by providing verifiable position feedback at any point in the stroke.
• Non-spring return design maintains last position during power loss, preventing sudden pressure spikes in ductwork.
• Supports tandem mounting for specialized applications requiring up to 420 lb-in of torque when two units are used in a master/subordinate configuration.
• Features a manual gear release button, allowing for quick manual overrides and simplified field adjustments during installation.

Common Questions

Can the M9124-AGC-2 be mounted in tandem for higher torque?
Yes, two M9124-AGC-2 units can be mounted in tandem using the M9000-158 mounting kit to deliver up to 420 lb-in (48 Nm) of torque for high-resistance damper loads.

Is this actuator suitable for outdoor air damper applications?
While technical specifications allow for a wide operating range, it is recommended to use spring-return series (like the M9220) for outdoor dampers in cold climates to ensure a fail-safe position. This model is NEMA 2/IP42 rated.

Which control signals are compatible with this model?
This specific AGC-2 variant is designed for floating (3-wire) or two-position (On/Off) control. It is not a 0-10V proportional model; for proportional control, the GGx or HGx series should be utilized.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.