Danfoss 013G-8564 Operator

The Danfoss 013G-8564 (RA 2000 series) is a high-performance thermostatic radiator valve operator designed for precise hydronic temperature control in demanding commercial and residential systems. This RA2066 operator features a built-in dial and a remote sensor with a 6.5-foot capillary tube, making it the standard solution for applications where the valve body is obstructed by curtains, cabinetry, or enclosures. Engineered with a specialized vapor-charge, this non-electric thermostatic control provides a faster reaction time to ambient temperature changes compared to liquid-filled alternatives. The snap-action RA connection ensures a secure, tool-free installation on Danfoss RA2000 valve bodies. By maintaining a narrow P-band, this operator optimizes hydronic balancing and reduces boiler cycling. For contractors, the integrated temperature range limiting and locking pins are essential for preventing tenant tampering while ensuring consistent energy-efficient heating control across the entire loop.

• Vapor-Charge Technology: Provides rapid actuator response to maintain tighter setpoint tolerances than standard liquid-filled heads.
• Remote Sensor Design: Includes a 6' 6" capillary, allowing accurate temperature sensing away from the heat source or behind radiator covers.
• RA Series Compatibility: Features a robust snap-on coupling for direct mounting to RA 2000 and RA-C series valve bodies.
• Tamper-Resistant Limits: Equipped with hidden limiting and locking pins to fix the temperature range or lock the setting in public spaces.
• Anti-Seize Protection: Built-in frost protection setting prevents valve sticking and piping bursts during system downtime.

How do I calibrate the 013G-8564 sensor for high-ceiling applications?
Mount the remote sensor horizontally approximately 5 feet above the floor. Ensure the capillary tube is lead away from the heat piping to prevent false high readings that could cause the valve to close prematurely.

Can this operator be used with older Danfoss RAVA or RAV valve bodies?
This operator is designed specifically for the RA 2000 series (RA connection). For older RAVA or RAV series bodies, a specific adapter or a compatible RAV/V operator is required as the neck diameters and pin depths differ.

What is the temperature range of the RA2066 dial?
The dial facilitates a control range of approximately 45°F to 86°F (7°C to 30°C). The "blank" position indicates a frost protection setting of approximately 45°F.

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.