Two products are being introduced to provide users with increased motor performance, as well as greater flexibility and functionality. Rockwell Automation has released its Allen-Bradley smart motor controllers, the SMC-3™ and SMC-Delta™.

According to some studies, the addition of vfd’s to an existing system can result in a reduction in energy consumption of 30% to 60%. For this reason, vfd’s are becoming quite popular. Since the technology has become much more stable over the last few years and costs are coming down, it’s a good time to look at vfd’s.

Most of the time it’s not a question of whether or not to replace a motor. By the time a contractor is called to the scene, the motor has already failed or is in its death throes. Replacement is usually a viable solution, because repairing a motor can be fairly expensive.

The main reason why most condenser coils are coated is that they’re located in a harsh environment. These environments can be natural (saltwater) or manufactured (chemicals), but in either case, a coating will lead to increased unit longevity, maintained performance, and efficiency.

Bob Forty knows all about condensing coils. As president of Energy Services Air Conditioning and Heating Co., and a 30-year self-proclaimed student of the hvac industry, Forty has seen a lot of trends come and go. One of the trends he’s not happy about at all is condensing coils that are made from aluminum (aluminum tube/aluminum fin).

Ductless systems have been popular in Europe and much of Asia for many years, and they’re gaining popularity in the U.S. However, there are still some who believe ductless systems can be used for cooling-only applications. Or, they should only be used in retrofit situations where it’s not possible to install ductwork. But the world of ductless is being shaken up.

In the last two or three years, mini-splits have enjoyed wider popularity, due in part to the fact that a whole generation has now lived with them and found them to work well.

List Of AHR Expo Exhibitors

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