Cooling System Types

There are several types of cooling systems you may have in your home. They range from units installed in a window, to units rolling around on the floor, to units mounted on a wall, to central air conditioning. All the systems use the same five elements of an air conditioning system consisting of refrigerant, compressor, condenser, expansion valve, evaporator coil as described in How Air Conditioning Works.

Let’s review the most common types of air conditioning systems in the home.

Cooling system types

What is a split system?

Many types of air conditioning systems are called split systems because they are made up of an outdoor unit, which contains the condenser and compressor, and an indoor unit, which is often connected to a furnace or heat pump.

Minisplit system


When there is excess humidity in the air, our body's ability to cool itself through perspiration is inhibited.

One way an air conditioner makes us feel cooler is by reducing the amount of moisture in the air.