Some refrigeration technicians are just lazy and never want to go the extra mile to help out their fellow workers. Refrigeration technicians go up and down roofs all the time rain or shine in order to complete their task at hand. More often than not, technicians go on a roof that is packed with unlabeled refrigeration units and spend quite sometime figuring out which unit they need to be working on. So in this video I decided to show you guys one of many ways you can pin point exactly which unit it is that you should be working on.