Air conditioner installation can range from simply plugging the unit into a wall socket to complicated central air conditioner installations involving a lot of work and money. The method you choose depends on the kind of air conditioner you choose, as well as cooling requirements, budget and the type of building the air conditioner will be installed into.
The first step is to determine what the cooling requirements are. There is quite a variety of different types of cooling systems but they fall into two basic categories, central air conditioners and room air conditioners.
Room air conditioners are designed to cool a room, not a whole house or building. These usually come as packaged units where all mechanisms are contained within one unit. These include portable air conditioners and window or casement air conditioners. Most of these can be easily installed as they simply need to be plugged into a wall socket.