M9220-GGA-YK11 Johnson Controls Actuator

Overview

The Johnson Controls M9220-GGA-YK11 is a direct-mount, spring-return electric actuator designed to accurately position return air, exhaust air, or outside air dampers in commercial HVAC systems. Operating on a 24 VAC or 24 VDC power supply, this bidirectional actuator provides a powerful 177 lb-in (20 N·m) running and spring-return torque. It features proportional control, adjusting the damper position dynamically based on a DC 0 to 10 V or 0 to 20 mA input signal, and provides a DC 0 to 10 V feedback signal to indicate the precise position of the actuator.

Features

• High Torque Output: Delivers 177 lb-in (20 N·m) of running and spring-return torque, with the ability to mount up to three models in tandem for doubled or tripled torque capacity.
• Proportional Control: Provides precise positioning utilizing a DC 0 to 10 V or 2 to 10 V control signal (or 0 to 20 mA / 4 to 20 mA with a field-furnished resistor).
• Reversible Mounting Design: Simplifies installation and permits the actuator to spring return in either clockwise or counterclockwise directions.
• Microprocessor-Controlled Brushless DC Motor: Ensures constant run-time that is completely independent of the applied torque.
• Electronic Stall Detection: Protects the actuator by deactivating the motor when an overload condition is detected across the entire rotation range.
• Robust Enclosure: Housed in a NEMA 2 (IP54) rated aluminum enclosure that guards internal components against dirt and moisture.
• Manual Override: Features an easy-to-use locking manual override with auto-release for manual positioning during installation or service.

Specifications

• Power Requirements: AC 24 V (19.2 to 30 V) at 50/60 Hz (Class 2, 15.5 VA running, 7.7 VA holding); DC 24 V (21.6 to 26.4 V) (Class 2, 6.7 W running, 2.9 W holding).
• Torque: 177 lb-in (20 N·m) running and spring return.
• Control Input: Proportional DC 0 to 10 V or 2 to 10 V (adjustable via selector switch); input signal impedance is 200,000 ohms for voltage.
• Feedback Signal: DC 0 (2) to 10 VDC corresponding to rotation limits, 1 mA maximum.
• Enclosure Rating: NEMA 2 (IP54).
• Shaft Compatibility: Installs directly on dampers with 1/2 to 3/4 in. round shafts or 3/8 and 1/2 in. square shafts.
• Rotation Range: Up to 90 degrees.

Applications

• Damper Control: Ideally suited for positioning return air, exhaust air, or outside air dampers in commercial and light industrial HVAC applications.
• Valve Actuation: Frequently paired with compatible valve linkages to control large flanged ball or globe valves in hydronic systems.
• Building Automation Systems: Integrated into complex building management networks that require precise, proportional analog environmental control and exact position feedback.