JOHNSON CONTROLS M9208-GGA-3 Electric Actuator, 70 In. lbs Torque, Spring Return, Proprotional

Johnson Controls M9208-GGA-3 proportional actuator is effective in control systems to regulate any HVAC process by continuously adjusting its output in proportion to a control signal.

Working Mechanism:

• The actuator receives a control signal (voltage, current or digital commands) that represents the desired position or level for the system it is controlling.
• It measures the difference between the desired position (setpoint) and the current position of the system (feedback).
• This difference is called the 'error'.
• The actuator then adjusts its output in proportion to the calculated error.

Features:

• Johnson Controls M9208-GGA-3 proportional actuator has proportional control functionality for precise modulation of dampers.
• Its mechanical spring return system allows the actuator to maintain its rated torque (70 lb-inch) even in the absence of power.
• Johnson Controls M9208-GGA-3 proportional actuator offers On / Off, floating point and proportional control to cater to different system requirements and control strategies.
• Its quick power-on run time (150 seconds) not only enhances the efficiency of the control system but also ensures rapid response while adjusting the dampers.
• This actuator can be installed using the included 48-inch long appliance cable.

Compatible Accessories:

• Johnson Controls M9208-600 Large Coupler Kit: This kit ensures smooth installation of the actuator.

Frequently Asked Questions:

Q. Can Johnson Controls M9208-GGA-3 proportional actuator handle severe power outages?

A. Yes, it is equipped with a mechanical spring return system that maintains torque and ensures fail-safe operation by providing control over dampers even during power outages.

Q. How do I choose the right proportional actuator for my application?

A. Choosing the right proportional actuator involves considering factors like:

• Required precision and accuracy
• Desired range of motion or force
• Environmental conditions (temperature & humidity)
• Integration with existing control systems
• Power supply and voltage compatibility

Q. What is the difference between open-loop and closed-loop control in proportional actuators?

A. Open-loop control involves sending a control signal to the actuator without receiving feedback on the system's actual state. Closed-loop (feedback) control, on the other hand, incorporates information from sensors to adjust the actuator's output in real time.