Refrigeration

The Eight Steps of Retrofitting HFC Refrigerants

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This article focuses on the retrofitting of HFC refrigerants into systems designed for use with HCFC-22. There are now a wide range of HFC retrofit refrigerants for a wide range of R-22 applications from air conditioning through refrigeration.


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A Look at Refrigeration Regulations

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The ever-changing world of refrigeration equipment regulations is getting an update. A recently published white paper addresses a variety of topics, including new Energy Star standards, new legislation affecting refrigerated display cases, and required certifications for commercial foodservice equipment.


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Keeping Track of Refrigerants

By Peter Powell
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With supplies of some refrigerants dwindling, costs rising, and recordkeeping and venting regulations in place, the need for careful refrigerant management is needed more than ever. That being the case, more and more manufacturers are coming out with products to address the need.


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The EPA Cracks Down on Illegal R-22 Importation and Sale

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The Alliance for Responsible Atmospheric Policy, an industry coalition, said in November 2012 the United States government successfully concluded 11 criminal and civil cases related to HCFC-22 refrigerant smuggling over the last two years.


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There’s Reason to Fuss About Hydrocarbons’ Flammability

By Peter Powell
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A reader raised concerns over a refrigerant product on the shelf of a farm supply store. The product had as its sales pitch, “Why switch from the traditional R-22 refrigerants,” and it was noted on the label that the package contained the equivalent of 30 pounds of HCFC-22.


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Bitzer U.S. Inc.: Ammonia Industrial Refrigeration Packages

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A line of ammonia industrial refrigeration packages ranges from motor-compressor combinations on rails to complete rotary screw compressor packages. The NH3 screw compressors are available in 20-300 hp.


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Expo Attendees Discuss R-22 Limitations

By Peter Powell
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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.


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The Professor: Partially Restricted Filter Driers

By John Tomczyk
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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.


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CellarCool: Wine Cellar Cooling Systems

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Self-contained, ducted, and ductless systems specifically designed for cooling wine cellars are available. Depending on the model, units can be mounted in a living area, wall mounted, installed on the wall near the ceiling or in the ceiling joists, and more.


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Beyond Familiar HFCs

By Peter Powell
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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. 


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John Missell, vice president and COO of Spectrum Design, joins the program to discuss how his company has utilized geothermal technologies, and we examine the future of renewable energy resources. Posted on Aug. 15.

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