Siemens SKD32 Manuals

This document is about Siemens Building Technologies HVAC products AP1N4561zh. The product is an electric hydraulic valve actuator with a stroke of 20mm. The operating voltage of the actuator varies depending on the model and can be AC 230V, AC 24V, DC 0–10V, 4–20mA or 0–1000Ω. The actuator has various functions including valve position feedback, stroke calibration, LED status indication, and priority control. It also features direction selection, stroke limit control, and adjustable starting point and stroke range for sequential control. The actuator is suitable for Siemens VVF and VXG series valves, used as control valves or safety shut-off valves in HVAC systems.