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Before making energy-efficiency improvements within a commercial building, a contractor must establish a baseline measurement. 

Many advocates and policy makers are taking action now to find and use refrigerants with much lower GWPs than HFCs to anticipate the phase down and avoid what could be a costly double transition. 

This column will try to explain the voltages associated with the high or wild leg coming from the secondary of a Delta service transformer. 

One field problem frequently encountered with this type of metering device is that it can become plugged with system debris, causing a restriction. When this happens, the cap tube will typically need to be replaced.

Refrigerants are all the talk these days in refrigeration. That was evident at the 66^th International AHR Expo in New York City.

Once equipped with the right dose of knowledge and the proper tools, contractors are able to offer whole-house “Goldilocks” solutions: Those that fit just right. 

Distributors from all around the country traveled to Phoenix for Heating, Air-conditioning, and Refrigeration Distributors International’s (HARDI) annual conference. 

Mike Agugliaro and Rob Zadotti realized something had to change. Their company was scuffling, and they were working around 80 hours per week. They’d finally had enough.

Industry figures are estimates that are derived from the best available figures supplied by a sample of AHRI member companies.  

The latest report from Air-Conditioning, Heating, and Refrigeration Institute (AHRI) indicates that 2013 will likely end on a positive note.