Description
The S1 SFA71UG actuator is a factory specified control device engineered to operate dampers or valves in HVAC systems. Designed for robust performance in residential and commercial applications, it delivers reliable 2 position actuation on standard 24 VAC control circuits — ideal for controlling airflow, dampers, or zone valves requiring on/off (open/closed) control.
Key Features
- 2 Position Actuation (Open/Close) — Moves HVAC dampers or valves between two states (open or closed), enabling simple on/off control without complex modulation.
- 24 VAC Power Supply — Compatible with most standard low voltage HVAC control systems, enabling easy integration without special wiring or transformers.
- Normally Closed (N/C) Default State — In unpowered state, the actuator remains closed, providing safe default configuration when the system is off or during power loss.
- OEM Grade Quality & Compatibility — A genuine York part — designed for use with York HVAC systems and other compatible units — minimizing fitment problems often seen with generic actuators.
- Compact, Retrofit Friendly Design — Suitable for both new installations and retrofit/replacement of existing valve or damper actuators, with minimal modification required.
- Reliable Operation for Airflow or Fluid Control — Useful for controlling dampers, zone valves, or similar devices in heating, ventilation, and air conditioning installations where reliable open/close control is essential.






