A split air conditioning simply means that the condensor (or sometimes referred to as the “outdoor unit”) is separated from the “indoor unit”, thus the term “split”. The homeowner can regulate how much cold air comes into the room via a thermostat or remote control. ... However, split-type air conditioners do not need to have an exhaust to vent the air itself, as the refrigerant cools the inside air by converting its heat to energy for itself. .