At www.achrnews.com, The NEWS’Extra Edition page is home to hundreds of online-exclusive service and maintenance, technical, and business management articles. Here are some of the best.
With increasing energy costs and growing demands for more efficient cooling systems, the need for accurate superheat measurements has become more important. Unfortunately, some technicians have either forgotten what they were taught about superheat in school or think it’s too much trouble to perform. They learn the procedure, but find it more difficult in the field, largely because of forgotten techniques or ineffective measuring tools. A lack of superheat measurements results in air conditioners that are either undercharged or overcharged and in danger of compressor failure.