How air conditioning works

Whether you're in Nashville Tennessee or any other place air conditioners of all brands and models work off the same concept. AC units come in a variety of shapes and sizes, but they all operate on the same basic premise. An air conditioner provides cold air inside your home or enclosed space by actually removing humidity & heat and from the inside air. It returns the air with less heat in it or "cooled air" to the indoor space and transfers the unwanted heat and humidity to the outside. A standard air conditioner, ac or cooling system uses a special chemical called freon or refrigerant, and has four main parts or components: a compressor, a condenser coil, a metering device and an evaporator coil. These components work together to quickly convert the refrigerant from liquid to gas and back to liquid again. The compressor raises the pressure and temperature of the refrigerant gas and sends it to the condenser or outside coil where it is condensed to a liquid. Then the refrigerant travels back inside and enters the metering device and then the evaporator coil. Here the liquid refrigerant evaporates and cools the indoor coil. A fan blows indoor air across the cold evaporator coil where the heat from the air inside the home is absorbed into the refrigerant. The cooler air is then circulated throughout the home while the heated evaporated gas is sent back outside to the compressor. The heat is then released into the outdoor air and the refrigerant condenses to a liquid state.
In a normally operating AC system this cycle continues until your home has reached the desired temperature set at the thermostat.