Trane ACT0338 Actuator

The Trane ACT0338 Actuator is a field-proven spring return damper actuator engineered for precise airflow regulation in commercial and industrial HVAC systems. Operating on a 24V power supply, this direct-coupled unit delivers a consistent 35 inch-pounds of torque, ensuring reliable positioning of dampers or valves even in high-velocity airflow conditions. Designed with a 90-degree stroke angle, it provides a comprehensive range of motion for accurate terminal unit control, including VariTrane and VariTrac zoning applications.

A critical feature for system safety is its integrated spring return fail-safe mechanism, which automatically drives the damper to a pre-programmed home position during power loss. This direct drive actuator eliminates the need for complex linkages, simplifying installation and reducing mechanical failure points. The unit includes a 9-inch lead for streamlined electrical termination. As a robust DDC control component, the Trane ACT0338 is a high-performance choice for contractors seeking to optimize temperature regulation and energy-efficient HVAC performance in complex zoning environments.

• Fail-Safe Protection: The mechanical spring return ensures dampers reach a safe state immediately upon loss of 24V power.
• Direct-Coupled Efficiency: Attaches directly to the damper shaft, removing the maintenance overhead associated with external linkages.
• High Torque Output: Provides 35 in-lbs of torque, sufficient for managing VAV box and bypass damper operational loads.
• Precise Airflow Control: Facilitates 90-degree rotation for stable, incremental adjustment of air volume and pressure.

Is the Trane ACT0338 compatible with floating control signals?
Yes, this model is designed for floating/three-point control applications, making it suitable for standard DDC interfaces in Trane VAV systems.

What happens if the internal spring fails?
Internal springs are rated for high-cycle industrial use; however, if the fail-safe mechanism does not engage, check the direct coupled connection for slippage or mechanical obstruction in the damper housing.

Can I use this for fire and smoke damper applications?
While this unit provides a fail-safe return, always verify the specific UL 555S rating required for your project, as some life-safety applications require specialized high-temperature actuators.

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.