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.
Pulling a good vacuum before charging a new system with refrigerant or after a repair is essential for the proper operation of an air conditioning system. Proper operation, system longevity, and the time you spend at the job site all relate to dollars in your pocket. In addition to the vacuum pump, a micron gauge is an essential tool. Here is a description of how the micron gauge works and why it is used in the HVAC industry.