Air Conditioning Systems
Air conditioners come in all different shapes and sizes. Your indoor unit works by moving air across the indoor evaporator coil and heat is absorbed into the refrigerant in this coil. The refrigerant is then circulated outside where the heat is exhausted with a fan blowing across the outside condenser coil. An air conditioner doesn’t “add” cool air; it removes heat from the air.
Split System Air Conditioners
Usually a unit sits outside somewhere – this is referred to as a condenser. The condenser has wires and copper tubes that lead inside. An air conditioning evaporator coil is located over, under or inside the indoor unit. The unit style gets the name “Split System” from the fact that the unit is split into an indoor and outdoor section.
The air conditioning condenser (outdoor portion) will normally be located on the ground beside the house or sometimes on the roof. The indoor unit and coil (air handler, furnace or heater) is usually located in a basement, crawl space, closet or attic and is connected to a duct system that circulates the air through the home.
Package Air Conditioners
Package air conditioners are self-contained units that come pre-assembled from the manufacture. They sit outside the home on the ground or roof. In trying to identify this type of system, you won’t normally see copper tubes leading to the house but you could see ductwork, or a large boxed-in area connecting the unit to the house.
Ductless Split Systems
The ductless split system has an outside condensing unit very similar to a regular split system air conditioner. It also has copper tubing running to an indoor unit. However, the indoor unit(s) are not ducted; they simply hang on a wall or mount in the ceiling. Another advantage to this system is the ability to have multiple indoor “blower” units giving you air conditioning or heat in more than one room.
Window or Wall Units
Window Units are mounted in open windows. They are useful as a temporary solution for one room but they can be noisy, inconvenient and block your view out of the window.