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optimizing HVAC runtimes
Compact Footprint: The standardized cubed design ensures direct fitment into existing relay sockets and control boxes without modifications
The harness carries the electrical signal to the valve regardless of the fuel type being regulated
Always match the part number to the system nameplate
Exceeding this distance can cause phantom tripping due to line capacitance
Siemens Building Technology SFA71U/25G Actuator R-410A optimizing HVAC runtimesThe Siemens SFA71U 25G Actuator is a professional grade 2 position zone valve actuator designed for reliable control in hydronic systems. Engineered for seamless integration with the Siemens 599 Series zone valves, this 24V normally closed actuator provides a robust 105 N force to ensure tight shut off in high demand HVAC applications. This spring return valve actuator facilitates a mechanical fail safe in the event of power loss, making it a critical
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