Johnson Controls VA9203-GGA-2Z Actuator

The Johnson Controls VA9203-GGA-2Z is a professional-grade spring return ball valve actuator engineered for precise proportional control in demanding HVACR environments. Operating on a versatile 24VAC/VDC power supply, this direct-coupled unit utilizes a proportional control signal compatible with 0-10 VDC, 2-10 VDC, or 4-20 mA inputs utilizing the integrated 500 Ohm resistor. With a rated torque of 27 lb-in (3 Nm), it provides smooth, reliable positioning for 1/2" to 2" two-way or three-way ball valves handling hot water, chilled water, glycol solutions, and low-pressure steam. The internal fail-safe spring return mechanism ensures the system defaults to a safe position during power loss, while the 120-inch plenum-rated cable simplifies installation in ceiling spaces and air handling units. Designed for high-duty cycles, this actuator delivers a 90-second power-on drive time for stable modulation in commercial and industrial fluid control applications.

Technical Benefits for Contractors

• Universal Signal Compatibility: Supports multiple analog inputs for seamless integration into existing Building Automation Systems (BAS).
• Fail-Safe Reliability: Mechanical spring return provides consistent emergency shutdown or bypass positioning without the need for external battery backups.
• Plenum Rated Installation: Equipped with a 10-foot plenum cable, reducing the need for additional junction boxes in restricted air-handling spaces.
• High Cycle Life: Engineered for over 200,000 cycles, minimizing truck rolls and long-term maintenance requirements on critical loops.
• Compact Direct-Coupled Design: Features a non-drill, single-screw manual override for easier valve commissioning and manual system testing.

Common Installation Questions

How do I wire the VA9203-GGA-2Z for a 4-20 mA control signal?
The actuator includes a built-in 500 Ohm resistor. You must wire the control signal to the appropriate leads as specified in the technical manual to convert the current signal into a 2-10 VDC internal voltage reference.

Can this actuator be mounted in any orientation?
While the actuator can be mounted in multiple positions, it should never be installed with the motor housing facing below the horizontal plane of the pipe to prevent moisture or condensation from entering the drive housing.

What is the difference between this and the VA9203-AGB-1Z?
The GGA series provides proportional control and includes the 120" plenum cable, whereas other models may offer on/off or floating control with different wiring configurations.

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.