It was a very hot August day when Bob received a call from the dispatcher telling him that an office building was not cooling properly and needed to be checked. This is a new customer for the company. The system is about seven years old.
Bob arrives at the office and goes to the lady who manages the building and handles all mechanical calls. She says, "The building is not holding the temperature conditions that it normally does. It also feels very humid. It started yesterday and now it is noon today and it's still uncomfortable."