This document introduces the heating, ventilation, and air conditioning products of Siemens Building Technologies, particularly the CM2N4634Cn model of the OpenAirTM damper actuator. The actuator has a rotary stroke and works with AC 24 V / AC 230 V power supply, suitable for three-point floating and modulating control. It has a nominal torque of 5 Nm (GBB), 10 Nm (GIB), or 2 Nm (GSF), with a mechanical adjustable range of 0.90°. Additionally, the actuator is available with various optional features, including position signal, valve position indicator, feedback potentiometer, adaptive rotation angle range, and adjustable auxiliary switches. For detailed instructions and installation information, please refer to the basic document Z4634.
This document provides an overview of Siemens wind valve actuators designed for HVAC applications. It describes the three model families (GDB, GLB, GSF), their mechanical travel, torque ratings, and optional features such as position feedback, offset adjustment, and auxiliary switches.
Detailed technical parameters, power requirements, protection ratings, and an internal wiring diagram are included to aid selection, installation, and commissioning. Ordering information and accessories are also listed. This manual is written in Chinese.
| Protection rating | IP 54 |
|---|---|
| Weight (unpacked) | 0.48 kg |
No, the feedback potentiometer and auxiliary switch cannot be retro‑fitted on site; they must be ordered with the required model.
The actuator complies with IP 54 protection rating.