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About a month before the AHR Expo, the U.S. Environmental Protection Agency (EPA) indicated it would permit the industry to produce and import 39 million pounds of virgin HCFC-22 in 2013, down from 55 million pounds in 2012.

We are going to look at issues related to a partially restricted filter/drier. For this purpose I have included a service checklist as well as a number of illustrations.

While much of the buzz at the AHR Expo was on dwindling supplies of new HCFC-22, reclamation of that refrigerant, and use of alternative HFCs in retrofits, a number of conversations centered on alternatives beyond familiar HFCs. 

Gone are the days of the three basic refrigerants: R-12, R-22, and R-502. Today’s technicians need to be well-educated on all of the refrigerants they encounter.

From residential to commercial to futuristic, these wet heat applications provide a quick look at what contractors are specifying for some of their boiler customers. 

Weldin Construction’s Mechanical Division has successfully completed multiple hydronic installations throughout the Joint Base Elmendorf-Richardson (JBER) Air Force base near Anchorage, Alaska. 

In what has become a bit of a legal ping-pong match, the Air-Conditioning, Heating & Refrigeration Institute (AHRI) is making sure its voice is heard by the court regarding a future decision on a proposed regional-standards settlement.

No matter what success the Air Conditioning Contractors of America (ACCA) might find, president and CEO Paul Stalknecht isn’t one to let the group rest on its laurels. In fact, he’s on a mission to make sure ACCA is proactive in preparing for the future.

If you’re coming to the Air Conditioning Contractors of America (ACCA) Conference in Orlando, Fla., be sure to bring a big stack of paper and your favorite pen (or two), because you’re about to get schooled.