A new refrigerant called R-410A will take its place. On the pro side, the new refrigerant has no chlorine, which is better for the atmosphere. On the con side, an R-410A system is highly susceptible to moisture damage. According to Williams, once moisture gets into the system it is almost impossible to get out. The Copeland Co. has developed a revolutionary scroll technology that is quieter, more efficient and longer-lived than piston compressors.
Air conditioners can have one or two speeds.
Single-speed motors create a draft that pushes cold air through the ductwork at a high rate of speed. Two-speed air conditioners use a lower speed the majority of the time to create a more comfortable airflow, cut the fluctuation in room temperature and reduce humidity. One final word. Most central air conditioning systems are composed of an external compressor unit and a furnace mounted coil.