M9220-GGA-YK30 Johnson Controls Actuator

Overview

The Johnson Controls M9220-GGA-YK30 is a 24 Vac spring-return proportional electric actuator designed for precise control of dampers and valves in commercial HVAC and building automation systems. It provides direct-mount modulating control, automatically returning to a fail-safe position if power is interrupted.

Features

• Direct-coupled mounting eliminates the need for complex damper linkages
• Reversible mounting design allows the actuator to spring return in either direction
• Electronic stall detection deactivates the motor if an overload occurs to protect the device
• Microprocessor-controlled brushless DC motor ensures consistent running times

Specifications

• Supply Voltage: 24 Vac at 50/60 Hz or 24 Vdc
• Torque capacity: 177 lb-in (20 N-m) for a single unit, expandable up to 531 lb-in in tandem setups
• Control Input: Proportional modulating (DC 0 to 10 V or 2 to 10 V; DC 0 to 20 mA or 4 to 20 mA with a 500-ohm resistor)
• Feedback Signal: DC 0 to 10 V or 2 to 10 V
• Enclosure Rating: NEMA 2 (IP54) aluminum construction

Applications

• Commercial HVAC air handling units (AHUs)
• Variable air volume (VAV) systems
• Outdoor air intake and exhaust damper automation
• Building management and energy monitoring platforms