Johnson Controls VA7830-HGC-2 Actuator

The Johnson Controls VA7830-HGC-2 is a high-performance spring return globe valve actuator designed for the precise control of VG7000 Series valves in demanding HVACR environments. Engineered for 24Vac power supplies, this versatile unit supports proportional control via 0-10Vdc, 2-10Vdc, or 4-20mA signals, as well as floating and on/off control profiles. With a robust 180 lb-in force (800 N), it ensures reliable close-off for valves ranging from 1/2" to 2". The fail-safe stem down configuration provides critical system protection during power loss, while the integrated manual override allows for seamless commissioning and manual positioning without electrical input. Field-adjustable through internal DIP switches, this direct-coupled actuator features a 5/16" to 1" stroke capacity and includes a 48-inch halogen-free cable for simplified wiring. The addition of an SPDT auxiliary switch enables easy integration of status feedback or interlocking with secondary equipment.

• Universal Control Compatibility: Seamlessly switch between 0-10Vdc proportional, floating, or two-position control to match your specific BAS controller requirements.
• Automatic Stroke Calibration: Features a self-calibrating stroke mechanism that identifies valve end-stops to reduce setup time and prevent motor strain.
• Industrial-Grade Reliability: Equipped with a brushless motor and a force-controlled motor shut-off to extend the service life of both the actuator and the valve stem.
• Enhanced Fail-Safe Protection: Reliable mechanical spring return ensures the valve returns to a safe stem-down position immediately upon loss of power.
• Durable Enclosure: Rated for IP54/NEMA 2, allowing for installation in diverse mechanical room environments while protecting internal electronics from debris.

Can I change the fail-safe direction in the field?
The VA7830-HGC-2 is factory-configured for spring return stem down. For applications requiring stem up fail-safe, the VA7820 series should be selected as the spring action is non-reversible.

How do I configure the control signal for 4-20mA?
The input signal is field-selectable using the internal DIP switches. Technicians can adjust these settings to calibrate the actuator for proportional 0-20mA or 4-20mA operation without additional modules.

Does this actuator include a position feedback signal?
Yes, it provides a 0-10Vdc or 2-10Vdc feedback signal, allowing the building automation system to monitor the actual valve position in real-time.

This item is not eligible for free shipping.

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.