The Danfoss ARA664 (SKU: 193B-1603) is a precision-engineered 3-point floating actuator designed for dependable valve control in commercial and industrial HVAC hydronic systems. Featuring an integrated auxiliary switch and a 96-second runtime, this actuator delivers accurate, responsive modulation to meet demanding building automation and zone control requirements.
Key Features
- 3-point floating control signal for precise valve positioning
- Integrated auxiliary switch for end-position feedback and interlock applications
- 96-second full-stroke runtime for smooth, controlled valve actuation
- Compact, robust housing suitable for commercial HVAC installations
- Designed for compatibility with Danfoss valve bodies in hydronic heating and cooling systems
- Reliable performance in building automation and zone control applications
Applications
- Hydronic heating and cooling systems
- Commercial building automation and BMS integration
- Zone valve control in multi-zone HVAC systems
- Fan coil unit and air handling unit valve actuation
Why Choose the Danfoss ARA664?
Danfoss is a globally recognized leader in HVAC controls and actuator technology. The ARA664 combines field-proven reliability with easy installation, making it a trusted choice for HVAC contractors and building engineers. The built-in auxiliary switch simplifies wiring for end-position signaling, reducing installation time and improving system diagnostics.








