M9220-GGA-YK10 Johnson Controls Actuator

Overview

The Johnson Controls M9220-GGA-YK10 is a 24 Vac/VDC spring-return proportional electric actuator designed for precise modulating control of dampers and valves in commercial HVAC and building automation systems. This direct-mount, bidirectional actuator operates without the need for a damper linkage, delivering accurate airflow adjustments to optimize energy efficiency and indoor comfort.

Features

• Reversible mounting design allows the actuator to spring return in either direction.
• Electronic stall detection deactivates the motor when an overload condition is found, extending product life.
• Easy-to-use locking manual override with automatic release and crank storage allows for simple positioning.
• Microprocessor-controlled brushless DC motor provides a constant run-time that is independent of torque.
• Standard shaft clamp supports simple direct coupling onto a variety of round or square damper shafts.

Specifications

• Power Requirements: AC 24 V (19.2 to 30 V) at 50/60 Hz or DC 24 V (21.6 to 26.4 V); Class 2.
• Running Torque: 177 lb-in (20 N-m) for a single unit.
• Control Input: Factory set DC 0 to 10 V, selectable for DC 0 (2) to 10 V or 0 (4) to 20 mA with a field-furnished 500-ohm resistor.
• Feedback Signal: DC 0 (2) to 10 VDC corresponding to the rotation range.
• Enclosure Rating: NEMA 2 (IP54) aluminum housing protecting against dirt and moisture.

Applications

• Ideal for modulating damper control in air handling units, VAV systems, and ventilation setups.
• Suitable for life safety and system protection applications requiring a fail-safe mechanism that automatically returns dampers to a predetermined position during a power interruption.
• Can be used in tandem configurations (two or three models) to double or triple the available torque for larger dampers.