Condenser coils come in all sorts of configurations. No matter the design, manufacturers try to create the most energy-efficient and effective way to create cooling. One newer approach involves modular condenser coils designed so each of up to 14 refrigeration modules utilizes an individual coil section.
Counterperson certification, the cost of raw materials, and a new wave of government regulations were some of the topics at the combined Business Conference and Southeastern Regional Meeting of the Heating, Airconditioning & Refrigeration Distributors International (HARDI).
The increasing importance of A/C on U.S. military bases resulted in a situation that required some new solutions and new technologies. With concerns such as salt-water corrosion, a new coil coating was needed for these systems.
It wasn't that long ago when a trip to a supermarket, no matter the outside temperature, may have required toting along a coat and gloves because many markets had open refrigerated and frozen food cases to lure shoppers to enticing products.
"There are estimates that many 12-SEER air conditioners are actually running at 6 SEER. Other estimates say that technicians overcharge air conditioners most of the time," said Rey Harju of Fieldpiece Instruments. He said part of the problem could be a misunderstanding of superheat.
In 2005, the International Institute of Ammonia Refrigeration (IIAR) ventured for the second time beyond the United States to hold its annual Ammonia Refrigeration Conference & Exhibition.
Close to 100 exhibitors had booths with products and services on display at the International Institute of Ammonia Refrigeration Annual Conference & Exhibition. This is a brief review of what was being shown and talked about.
As consultant Shawn Lee notes in this issue, a number of compressors are being returned to the manufacturer with "no defect found." It's a serious problem in our industry.
There are more tools and test instruments available than could ever fit in one vehicle. Contractors need to evaluate the range of jobs that technicians face on a regular basis, then make some well-informed decisions on what tools and instruments are needed.
