Johnson Controls M9208-AGA-2 Actuator

The Johnson Controls M9208-AGA-2 is a professional-grade spring return direct coupled actuator designed for the precise control of dampers and valves in commercial HVAC systems. Operating on 24VAC or 24VDC power, this unit delivers a rated 70 lb-in torque (8 Nm), making it an ideal choice for medium-sized air handlers and terminal units. This specific model supports both floating control and two-position control, offering versatility for various sequencing needs. Engineered with a 150-second power-on run time, it ensures stable modulation without hunting, while the spring return mechanism provides a fail-safe position upon loss of power. The inclusion of a 120-inch plenum cable with an integral 3/8-inch FMC connector simplifies site installation by meeting strict building codes for air-handling spaces. Reliability in high-cycle applications makes this M9208 series actuator a standard replacement for contractors prioritizing system uptime and mechanical precision.

Key Benefits for Contractors

• Universal Compatibility: Works seamlessly with floating and on/off controllers for simplified inventory management.
• Fail-Safe Operation: Mechanical spring return ensures the damper or valve returns to its home position during power interruptions.
• Plenum Rated: Features a 10-foot plenum-rated cable and flexible metal conduit connector for immediate code-compliant installation.
• High Torque Density: Delivers 70 lb-in torque in a compact footprint, allowing for installation in tight mechanical closets.
• Reversible Mounting: Designed for easy field reversal of the fail-safe direction without requiring additional hardware.

Common Installation Questions

What is the maximum square footage of a damper this actuator can handle?
The M9208-AGA-2 provides 70 lb-in of torque, which typically handles dampers up to 17.5 square feet, depending on the seal type and pressure drop across the damper.

Can this actuator be used in dual-mounted configurations?
Yes, these units are designed to be used in tandem when higher torque is required, provided the linkages are properly aligned to prevent binding.

Does the 120" cable include the conduit connector?
Yes, this model features an integral 3/8" FMC connector pre-installed on the plenum cable, reducing the need for field-fitting during rough-in.

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.