APPLICATION GUIDE Damper Actuator selection for HVAC systems usa.siemens.
The right damper actuator for any HVAC application Our OpenAir™ series provides more torque sizes to meet all of your needs. With over 40 years of innovating control actuators, Siemens is a recognized global leader in HVAC damper actuators. Energy-efficient, robust, flexible and reliable – save time and costs with OpenAir.
Why the right actuator matters 1 Over-sizing • Potential damage to your equipment Under-sizing • Equipment won’t function properly • Potential damage to the equipment • Decreased energy efficiency Improper control signal • Overworking the equipment The most common issues that come up when choosing the right damper actuator are under-sizing, over-sizing and improper usage signal. It is best to mitigate risk to ensure that the actuator and equipment functions properly.
2 Selecting the right actuator Actuator Selection Checklist BEFORE GETTING STARTED: To determine what actuator is needed for the application use a checklist like the one in the example shown to the right. 1. Assess damper physical properties 2. Check the specifications 3. Understand application requirements 4.
#2: Check the specifications Actuator Selection Checklist 1. Assess damper physical properties By knowing the ratings and specifications of the damper, you'll be able to find the torque vector needed. Siemens torque vector table is as follows: 2. Check the specifications 3. Understand application requirements 4. Adjust for mounting or accessories Torque Vector Table Torque Factor (Lb. In/Ft²) Air Velocity (Ft/Min) < 1200 < 2500 < 3000 Opposed Blade No Seals 3 4.
Physical Properties: Know the Measurements Finding these four data points are crucial to understanding what torque is required for the application, so that the right actuator is chosen. #1 Evaluate the total area of the damper L" First, find the square footage of your damper. Check if the damper section is longer than 96". If it is, then it must have two total actuators on the shaft - one on either side of the damper.
How to find the damper torque Step 1: Go to the manufacturer’s website and search the damper part number. In some cases, a QR code will be located on the damper itself. Scan the QR code with your phone's camera and it will direct you to the specific damper's sections. Torque Vector Table Torque Factor (Lb. In/Ft²) Air Velocity (Ft/Min) < 1200 < 2500 < 3000 Opposed Blade No Seals 3 4.5 6 Opposed Blade with Seals 6 7.5 10 Parallel Blade No Seals 4 6 8 8.5 10.
#3: Understand application requirements Actuator Selection Checklist 1. Assess damper physical properties The third step is understanding the application requirements. Choose which actuator fail position is the best fit for the project and decide what voltage and control signal is needed. Spring Return 2. Check the specifications 3. Understand application requirements 4. Adjust for mounting or accessories vs.
#4 Adjust for mountings or accessories The final two options that are available for the damper actuators are dual-auxiliary switches and specific mounting connections. Auxiliary switches help verify the actuator positioning, since a contact can be used to operate other low voltage devices at 5% and 85% of the actuator’s rotation. Actuator Selection Checklist 1. Assess damper physical properties 2. Check the specifications 3. Understand application requirements 4.
Common actuator types and applications Find the right damper actuator for any HVAC application. Siemens has a range that meets all your needs. Energy-efficient, simple, flexible and reliable: your benefits are at the heart of the entire damper actuator range, from smooth installation and rapid commissioning to operation that is both efficient and convenient. Save time and costs with OpenAir.
OpenAir Electronic Damper Actuators More torque, greater energy efficiency, and long-lasting reliability gives you an ideal solution for all your HVAC equipment needs. 40+ Years 1.5+ Million 60+ Thousand 100% 25% 20% Innovating control actuators Factory tested OpenAir reposition operations for longer life Lower power consumption Full strokes at rated torque and temperature More torque than the competition Rely on Siemens for the best possible system performance.
