Johnson Controls M9220-GGA-YK10 Actuator

The Johnson Controls M9220-GGA-YK-10 is a heavy-duty 24 VAC spring return actuator designed for the precise positioning of dampers and valves in large-scale HVAC systems. Operating on a 0(2) to 10 VDC or 0(4) to 20 mA proportional control signal, this 177 lb-in (20 Nm) torque actuator provides reliable fail-safe operation during power loss. This model is engineered for high-demand applications, featuring an aluminum enclosure and a brushless DC motor that ensures a constant rotation time regardless of load. The M9220 series provides bidirectional spring return, allowing field-selectable clockwise or counter-clockwise fail-safe positioning. Its self-calibrating automatic stroke adjustment optimizes the control range, while the integrated auxiliary switches allow for seamless end-stop signaling. Whether integrated into a BAS or BMS system, this actuator delivers the modulating control and mechanical reliability required for critical airflow management and hydronic control.

• High Torque Output: Delivers 177 lb-in (20 Nm) of torque, sufficient for large dampers and high-pressure valve assemblies.
• Fail-Safe Protection: Reliable mechanical spring return ensures the system reverts to a safe position during power interruptions.
• Brushless DC Motor: Provides consistent operating speed and overload protection across the entire rotation range without the need for end-of-stroke switches.
• Electronic Stall Detection: Protects the internal gear train from damage due to mechanical obstructions, extending the service life in HVACR cycles.
• Standardized Mounting: Includes a universal shaft coupler for quick installation on round or square shafts, reducing labor time for contractors.

What control signal does this actuator support?
The M9220-GGA-YK10 supports proportional control via a 0(2) to 10 VDC or 0(4) to 20 mA input signal, providing modulating feedback for precise system integration.

Can the spring return direction be changed in the field?
Yes, the fail-safe direction (CW or CCW) is determined by the side of the actuator facing the damper shaft, allowing for flexible mounting configurations.

Are the auxiliary switches adjustable?
This model includes two built-in auxiliary switches that provide feedback at 10 and 80 degrees of rotation for remote monitoring of actuator status.

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.