A manager of a group of theaters calls and tells the dispatcher that the air conditioning system is not working at a shopping mall that has six theaters. The manager explains that it was working last night, but is not working this morning.
Bob is sent to handle the job. He arrives and, since he has never been there before, the manager takes him to the equipment room. He finds a water-cooled chiller that looks to be supplying about 50 tons of air conditioning. He tells the manager that he wants to look around to see what the problem may be.