What is an Air Conditioner?

An air conditioning system (often referred to as AC or aircon) can control and change the temperature, humidity and air quality of the air in indoor spaces. These systems cool down the temperature in an inside space by removing the existing heat and moisture from that space.



The air conditioner in a central heating and cooling system provides cool air through ductwork inside your home, by providing a process that draws out the warm air inside, removing its heat.

In a split system, the compressor condenses and circulates the refrigerant through the outdoor unit, changing it from a gas to a liquid. The liquid is then forced through the indoor evaporator coil or cooling compartment. The indoor unit’s fan circulates the inside air to pass across the evaporator fins. The evaporator’s metal fins exchange the thermal energy with the air around it. There, the refrigerant turns from liquid into vapor, removing any heat from the surrounding air. As the heat is removed from the air, the air is cooled and blown back into the house.

From that point, the condenser or outdoor unit then turns the refrigerant vapor back into a liquid, removing any heat. By the time the fluid leaves the evaporator again, it is a cool, low-pressure gas, eventually returning to the condenser to begin its trip all over again. This process continues again and again until your home reaches the cooling temperature you want, as programmed and sensed by your thermostat setting.

· A cold liquid refrigerant absorbs heat from the room through the evaporator, cooling the room down.

·The refrigerant then changes phase to a gas and is put through a compressor to increase its temperature.

· It then passes through the condenser coils, transferring heat from the refrigerant to the outside air.

·The refrigerant expands in order to decrease its pressure and cool down to below the room's temperature to repeat the cycle again.