Tag Archives: dampers

Top 10 Questions for Sizing and Selecting a Damper Actuator

This week, we discovered some great tips from Belimo for sizing and selecting a damper actuator. We thought these might come in handy for you, so we’d like to share. Jackson Systems also sells Belimo products, and we’d be happy to help if you have further questions about picking the right damper actuator for your job. Here are the key questions to answer when selecting:

1. What is the total area of the damper? (square feet)

2. Opposed blade or parallel blade control construction?

  • (L” x W” = Total sq inches/144 = total sq ft)
  • Opposed Blade w/o seals 3 in-lb/sq feet*
  • Opposed Blade w/ seals 5 in-lb/sq feet
  • Parallel Blade w/o seals 4 in-lb/sq feet
  • Parallel Blade w/ seals 7 in-lb/sq feet

*Less than 1,000 feet per minute

3. Are there blade and edge seals on the damper?
This will impact the proper selection as the seals add resistance requiring more torque. If unknown, use a worst case scenario, parallel blade with seals.

4. For the damper in question, what does the manufacturer specify as the torque rating? If this information is not available refer to the “typical damper requirements and sizing” chart.

5. What is the air velocity, static pressure, or design CFM?
System above 1,000 FPM required additional actuator torque.

6. Is fail-safe actuation required?

7. What is the supply voltage to the actuator?

  • 24 VAC/DC
  • 120 VAC
  • 230 VAC single phase

8. What is the control signal to the actuator?

  • 2 position
  • Floating point
  • Modulating
  • Sequencing
  • “Non-standard” voltage signals

This will be a critical component to the selection of an actuator. Consider the Multi-Function Technology actuator product range and the flexibility of its application.

9. Can you direct couple to a damper shaft? Direct-coupling has become the industry standard. Some retrofit applications do not allow direct coupling. Refer to the Belimo “Mounting & Methods Guide” for application details.

10. Are there additional accessories required? For example, some applications require the addition of an auxiliary switch for proof of position; a retrofit application may require an additional mounting bracket and linkage kit. We advise that you identify these needs prior to leaving the job site or ordering products.

See Belimo’s complete selection guide here. Thanks to Belimo for this helpful guide.

New Catalog from Jackson Systems Now Available

Indianapolis, IN – Jackson Systems, LLC, an award-winning HVAC manufacturer and wholesaler has released the latest version of their product catalog. It is a smaller, more useful catalog for the HVAC contractor. The latest catalog showcases the innovative product line by Jackson Systems; complete with product features, individual specification sheets and wiring diagrams. To receive a copy of Jackson Systems’ new catalog, please visit www.jacksonsystems.com and complete the catalog order form or call 888-652-9663.

 

An interactive version is also available online at www.jacksonsystems.com/catalog. The contractor can now search, print, email and download the catalog via the internet.

 

About Jackson Systems:

Through our mission to provide the best quality and most contractor-friendly control products and service in the industry, we work each day to deliver excellence. Founded in 1997, Jackson Systems today is celebrated as one of the fastest growing companies in Indiana. Jackson Systems serves customers worldwide as a leading direct-to-contractor zone control manufacturer and distributor.

Combining the skills of our talented technical engineers and the customer service support of our sales team, Jackson Systems sets the standard from creating contractor-friendly products and available support teams to help our customers achieve success. Jackson Systems is the direct choice for simple controls. For formal quotes, design assistance or additional information, visit www.jacksonsystems.com or call 888-652-9663.