The electronic expansion valve (EEV) operates with a much more sophisticated design than a conventional TXV. Here are some electronic expansion valve basics.
This article is the first installment in a four-part series that examines poor indoor air quality (IAQ) in schools and what the HVACR trade can do to help stem the crisis. Here, The News details the efforts of filtration equipment manufacturers to develop new equipment and provide solutions for contractors to implement when repairing or designing air-handling systems for school buildings.
Your marketing message is one leg of a three-legged stool that also includes market and media, and it's a fundamental building block for a successful marketing program. Do you know your message? Sadly, many contractors don't.
An alternative to going into debt to raise cash is to utilize a financial instrument called "factoring." Factoring is simply the outright sale of your receivables to an investor or, more commonly, a commercial finance company.
Back in 2001, The News introduced readers to Bowen Refrigeration, Heating & Cooling of Muskegon, Mich. The company was the winner of our "Do You Want to Grow Your Business?" contest. Three years later, The News visited Bowen to gauge its progress.
An accomplished knowledge of how refrigerant cools and how it interacts with system components is a fundamental building block for the HVACR technician. Here we examine the components and parts of a residential split system.
At one time, Mike Rampey didn't realize that his HVACR firm was the first in the country to have all of its technicians certified by North American Technician Excellence (NATE).
Payless Insulation recently started manufacturing patented cotton insulated semi-flex air ducts called Superior Air Ducts. Bonded Logic makes the cotton in these new ducts only for Payless. Ihe product is said to be a new generation of environmentally friendly, sturdy, higher-efficiency ductwork.
In some applications, the fan is not only important to the process, it is critical to the process. Here are a few case studies that demonstrate how a fan can be a critical component of an air system.
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