Ask an Engineer: VFD Phase Conversion How do you convert variable frequency drives from single-phase to three-phase power? Phase converters convert a single-phase supply to three-phase power. If you’ll be using the phase converter device to create a three-phase output from single-phase input, you should know that variable frequency drives (VFDs) typically require a more … Read more
https://player.vimeo.com/external/348684738.hd.mp4?s=38ec1ad72b87d42f23248cf5520bd098c3db8a65&profile_id=175 Then & Now Air Conditioning Willis Carrier invented air conditioning in 1902. Let’s take a look at how it has changed since then. In 1914, the first residential air conditioning units took up 840 cubic feet of space. Today, standard home HVAC units only occupy about 36 cubic feet. In 1932, the first room … Read more
Tests Prove Benefits of Rooftop HVAC Controls You know the cost-saving benefits that advanced HVAC controls can bring to commercial and industrial facilities. Without some hard data, however, it may sound to some like you’re just blowing a lot of hot air. Real-world testing of rooftop units by the U.S. Department of Energy (DOE) may … Read more
Advanced Features in High Performance Rooftop Units Packaged rooftop units are widely used to provide heating and cooling in commercial and industrial buildings. Many of these systems are older and inefficient by today’s standards, and years of exposure to a variety of weather conditions has further reduced their efficiency. Upgrading to a new, high-performance rooftop … Read more
https://player.vimeo.com/external/396737753.hd.mp4?s=1a0862bf159634528beb55511c089c8b5f0e8863&profile_id=175 Mastery Maintenance: Rooftop Units It’s easy to neglect your packaged rooftop units. After all, you put them on the roof so you wouldn’t be able to see them. But a proper maintenance plan can keep your rooftop unit performing at peak efficiency and provide increased equipment longevity. Most preventive maintenance activities for a rooftop … Read more
Energy Waste: The Hidden Costs
Customized Comfort? Socially Driven HVAC Systems Saving energy while maximizing occupant comfort is a challenging goal for many facilities. However, a potential solution to this age-old problem has surfaced — socially driven HVAC optimization. In tests, this user-based system resulted in 20% cooling energy savings and 47% heating savings, while significantly reducing hot and cold … Read more
Clearing the Air on HVAC Commissioning HVAC systems are critical to building comfort, but they’re also the biggest energy user in a typical commercial building. Proper operation affects employee health and productivity, as well as customer purchasing behavior. A new HVAC installation may not operate as intended, however. People make mistakes, microprocessor controls are complex … Read more
Let energy savings find a home in your properties with these simple efficiency measures.
Affordable Energy-Saving Solutions for Multifamily Buildings Energy efficiency upgrades may reduce operating costs and increase property value. Owners and managers of multifamily properties are often reluctant to implement such projects because of concerns about the upfront investment and disruptions to tenants. Fortunately, there are a variety of energy-saving measures available that are affordable and simple … Read more