Featured Stories

RSS

Customers have been complaining for three weeks of warm products in a low temperature, glass door, reach-in freezer. The storeowner inspects the thermometers in the case and notices that the temperature will not pull down below 15°F. The temperature has been 15° for about a week, but ideally it should be 0°.

The most recent International Congress of Refrigeration in Beijing brought together some 1,200 refrigeration scientists, educators, and engineers for six days of seminars, keynote speeches and paper presentations.

Information and nonstop technology can be overwhelming. Every day you are bombarded with an assortment of options. Here are a few shortcuts to slice through the glut of information tools, and focus on how to make your job easier and more efficient.

According to David Squires, president of Contractor’s Online-Access Inc., Web consulting firm, and a 33-year HVAC veteran, a Web presence is more than just a colorful page with graphics and some words. Establishing and maintaining a profitable Website is an exercise in dedication, and the contractor with a thriving Web presence concentrates on two things - visibility and usability.

One of the biggest challenges in refrigeration equipment is stopping systems from leaking refrigerants into the environment. The newest models are being factory-sealed with special attention to leak tightness. But there is a lot of product in the field with leaks due to aging and even the most modern systems are prone to leak eventually.

The 11th Commandment, as far as the HVACR industry is concerned, is Thou Shalt Remove Refrigerants From a Piece of Equipment Being Junked.

The melding of Discus compressors into intelligent store design has been one of those next steps forward in supermarket technology.

It is important that the bearings of an operating compressor are properly lubricated. Improper lubrication will surely lead to a compressor failure.

Electronically commutated (EC) motors continue to gain a foothold in the industry. Such motors utilize variable-speed technology to optimize fan speeds for load requirements, maximizing energy efficiency, and minimizing sound.

Unfortunately, heating oil companies can “short-deliver,” billing customers for the full amount but holding back a portion to resell. This highlights the importance of verifying deliveries. Heating contractors can help customers by installing digital fuel control gauges to help verify that the correct amount has been delivered.