Siemens Building Technology Damper Actuators & Accessories

Siemens Building Technology: OpenAir™ Damper Actuators & Accessories

Siemens Building Technology has long been a benchmark name in building automation and HVAC controls, and its lineup of damper actuators and accessories is a prime example of why mechanical engineers and HVAC technicians trust the brand. Backed by decades of engineering expertise, Siemens brings the same precision it applies to large-scale building management systems directly into the individual components that keep air moving efficiently and safely through commercial and industrial facilities.

The OpenAir™ Platform: Engineering Built for the Field

At the core of Siemens’ damper actuator offering is the OpenAir™ electronic damper actuator family. These actuators are designed for reliable operation, quick installation, and low power consumption, with accurate positioning and a wide selection of torque and control signal ranges making the line ideal for a variety of HVAC applications including variable air volume (VAV) control, outside air, exhaust and mixed air dampers, economizer dampers, fume hoods, and unit ventilators.

Siemens damper actuators ship ready to install, with built-in time- and cost-saving features such as a patented self-centering shaft adapter, standardized wiring, and brushless motor technology. Brushless motors and gearboxes that have already been run in enable quiet yet high-performance operation, while fast and accurate response to building automation commands helps ensure a stable and comfortable indoor climate.

Spring-Return and Non-Spring-Return Designs

Siemens offers both spring-return and non-spring-return actuator configurations to match virtually any application requirement. The spring-return models allow building engineers to more finely scale air damper motorization, avoiding unnecessary and expensive over-motorization. Spring-return actuators are primarily used when spring force is needed to move de-energized air dampers into a defined fail-safe position—such as during a power failure.

With torques ranging from 20 to 310 lb-in., this powerful lineup delivers out-of-the-box performance and long-lasting reliability for all types of HVAC applications. For VAV box applications specifically, the GDE, GLB, and GSD damper actuators feature the lowest power consumption on the market and the longest life cycle rating of 100,000 full stroke cycles and 5 million repositions.

Purpose-Built Accessories for Every Installation

Beyond the actuators themselves, Siemens offers a comprehensive range of accessories designed to simplify and optimize installation. A full selection of mounting alternatives is available, including short shaft mounting, large shaft adapters, and frame and foot mounting, as well as options for mounting actuators in tandem. Self-centering shaft couplings and standardized wiring across the product line help technicians install actuators quickly and accurately.

Built-in damper position feedback and reliable, constant torque levels when opening and closing the damper increase overall system safety, while self-centering shaft adapters reduce installation time and help ensure secure installation.

System Integration and Future-Ready Design

Compatibility with third-party manufacturers and digital technologies like BIM makes Siemens HVAC applications reliable, flexible, and future-proof. Like all products in the OpenAir family, each damper actuator features a printed data matrix code that allows instant online access to product information, including datasheets and installation instructions. Whether you are commissioning a new air handling unit, retrofitting an older system, or simply sourcing replacement accessories, Siemens Building Technology’s damper actuator lineup is engineered to perform across every phase of a building’s life cycle.