It's hard to imagine living in Chicago during the summertime with an air conditioner, but have you ever stopped to think about how that big, noisy appliance on the top of your roof keeps you cool? The basic principle behind air conditions is evaporation. A liquid cools down when it evaporates, and so does the liquid inside your air conditioner (known as refrigerant). The evaporating refrigerant makes the coils extremely cold, which cools down your home as air is blown over the coils. The evaporated refrigerant is pumped through a compressor where it is turned into a liquid again. This cycle goes on and on as long as your air conditioner is running.
Watch this video clip for a further explanation of how air conditioners work. And even if you don't fully understand how air conditioners work, you can bet that your AC repair company in Chicago does. Contact your AC repair technician at the first sign of trouble to keep your home comfortable and keep your energy costs down.