An air conditioning system is a process to make a particular place comfortable by maintaining the temperature, humidity, and air purity within a limit. We have helped you understand how an AC system works in the following wiring diagram. As shown from the wiring diagram here, the main objective of an Air Conditioning System is to maintain temperature, maintain humidity, and maintain air purity. These tasks can be performed by several important parts of the AC system shown here in the wiring diagram. In the following AC System diagram, you see the evaporator coil is placed indoors or inside the room, and the condenser coil is also placed outside the room.