Contractors must be relationship experts. But this is more than customer relations. An hvac contractor must understand the relationships in the home among heating and cooling equipment, ventilation strategies, insulation systems, windows, and other factors to get a real handle on how to maintain good indoor air quality (IAQ) and prevent problems.
The 100-year-old Cerveceria Quilmes of Buenos Aires is the largest brewery in Argentina. When Gabriel Conigliaro, maintenance manager, noticed that the ammonia compressors used to cool the brewing water were absorbing what he thought was an abnormally high amount of refrigeration oil, he began investigating.
The recent announcement of a voluntary program offered by the Environmental Protection Agency (EPA) to the commercial baking industry has reinforced the importance of an organized plan when faced with refrigerant management issues.
To prevent nuisance refrigerant loss through pressure relief valves during high ambient or abnormal operating conditions, it is necessary that the relief valve setting be substantially higher than the system operating pressure.
Fictional hvac contractor XYZ Co. seemed doomed in the Mock Trial conducted by the South Carolina Association of Heating and Air Conditioning Contractors (The News, March 4, 2002). News readers who voted online at www.achrnews.com certainly voted overwhelmingly in favor of a guilty verdict.
Before giving you the jury’s results, we provide a brief recapitulation of the mock trial detailed in the March 4 issue of The News (“Ladies And Gentlemen of the Jury,” page 1). Now let’s go back into this fictional courtroom to see the jury’s decision.