It is important to verify correct control of an HVAC air system. A balanced supply and exhaust will help ensure proper ventilation by meeting minimum air exchange rates, removing airborne contaminants, and reducing operating costs.
While managing pain is a critical medical intervention when it comes to musculoskeletal injuries, finding a way to deal with it successfully is often illusive. This is a particularly important issue since such conditions account for a high percentage of job-related injuries and a high proportion of workers' compensation costs.
In this edition of the Btu Buddy series, Bob is dispatched to a home with water on the basement floor around the air handler. He determines that there is a condensate drain problem and he recommends installation of a condensate pump.
Research has led to new ways for analyzing and using sensor information, and we now have algorithms to predict with some certainty when a specific kind of equipment malfunction will occur.
Regardless of your experience, to troubleshoot the system it is essential that you have a solid understanding of the fundamentals of refrigeration - including the principles of superheat and subcooling. You also need to have the right tools and know-how to apply these principles to use the tool quickly and efficiently.
This article reviews the reasons open standard protocols were, and still are, desirable, as well as the benefits we had hoped to realize from their successful application. Most importantly this article describes how you can assist the building owner in attaining many of the expected benefits from an open standard protocol.
Throughout the years a contractor has bought many different types of trucks. But his techs seem to never have exactly what they need on the truck. Consultant Al Levi provides his recommendations for more efficient and effective trucking.
"We're always looking for good people." Almost every owner I talk with says the same thing, but looking and knowing how to look is the difference between a steady stream of unqualified candidates and successful recruiting endeavors.
HVAC technicians work on fans in many ways. They install fans, measure fan performance, and adjust fan speed. This article provides important advice on how to work safely with fans.
In this installment of the Btu Buddy series, Bob is on a no-cooling call where the a/c system had just been repaired due to a refrigerant leak. Unfortunately, he discovers air in the system because it had not been evacuated.
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