Danfoss 193B-1600 Float

The Danfoss 193B-1600 is an ESBE ARA663 series 3-point floating motor actuator engineered for precise control of rotary mixing valves in hydronic heating and cooling systems. Operating on a 24VAC supply voltage, this compact non-spring return actuator delivers a consistent 53 in-lb torque (6 Nm) to handle 3-way and 4-way valves effortlessly. With a 90-degree ambient rotation time of 96 seconds, it provides the steady, incremental adjustment necessary to prevent water hammer and ensure stable discharge temperatures. This model is a direct replacement for the legacy Series 60 actuators and features a simplified mounting interface that requires no tools for attachment to VRG, MG, or G series valves. The low-profile design and stabilized valve-actuator connection make it the industry standard for contractors upgrading existing HVAC tempering valves or installing new automated mixing systems.

• Universal Compatibility: Backward compatible with older ESBE MG and G series rotary valves and optimized for modern VRG series blocks.
• Tool-Free Installation: Redesigned mounting procedure allows for fast, snap-action attachment, reducing labor time on the job site.
• Stable Modulation: The 3-point floating signal ensures smooth 96-second run times without the jerky transitions found in lower-tier actuators.
• Rugged Performance: Rated for ambient temperatures up to 131°F, ensuring reliability in demanding mechanical room environments.
• Compact Footprint: Reduced profile allows for installation in tight domestic hot water or radiant manifold cabinets.

Is the Danfoss 193B-1600 compatible with older Series 60 valves?
Yes, this ARA663 actuator is specifically designed to be backward compatible with MG and G series valves, making it an ideal drop-in replacement for aging 24V units.

Does this actuator include an auxiliary switch?
The standard 193B-1600 model typically operates as a 3-point floating actuator without an integrated auxiliary switch. If your sequence of operation requires end-switch feedback, verify the specific sub-model before installation.

What is the primary application for a 96-second run time?
The 96-second rotation is calibrated for hydronic mixing and diverting where slow, precise modulation is required to maintain tight temperature tolerances and protect system piping from rapid pressure shifts.

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.