The dispatcher asks Bob to call one of their company's good customers who wanted to talk to Bob in person about his system.
Bob calls the customer and the customer explains that he is having a very important business event at his home on Saturday night and that he wants to be sure that his air conditioners were operating correctly. He asks Bob to be in attendance to watch over the equipment during the event. The units are high-efficiency heat pumps, but they are about 10 years old. Bob is very familiar with the job. The customer explains that the entire house and party rooms must be comfortable, at about 72 degrees F. There are two 5-ton heat pumps and one 3-ton heat pump that serves the party room where people will have a tendency to gather. All of the air handlers and outdoor units are in remote places where Bob will not be noticed.