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.
Rarely have we had so many responses to a single System Mystery as we did for "The Case of the Baby Boomers' Heat Pump." The answers that best explained the operating conditions presented in our mystery involved the TXV and the reversing valve.
To improve the flow of materials to your people in the field and eliminate mistakes, you need to know what material is and isn't moving, and your trucks must have a standard stocking list.
On air-handling units, air intake filtration increases the life of internal filters. On air-cooled chillers and condenser coils, it prevents debris from getting into the coils. On cooling towers, it isolates debris on the outside of the tower.
Are you a technician that needs to do some troubleshooting on a totally dead air conditioning unit? Grab your tools and crank up the can-do attitude. Here are some tips for troubleshooting that air conditioner.