Air Conditioner

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Air conditioning (often referred to as AC, A/C,) is the process of removing heat and moisture from the interior of an occupied space to improve the comfort of occupants. Air conditioning can be used in both domestic and commercial environments. This process is most commonly used to achieve a more comfortable interior environment, typically for humans and other animals; however, air conditioning is also used to cool and dehumidify rooms filled with heat-producing electronic devices, such as computer servers, power amplifiers, and to display and store some delicate products, such as artwork.

An air conditioner is a system or a machine that treats air in a defined, usually enclosed area via a refrigeration cycle in which warm air is removed and replaced with cooler air. In construction, a complete system of heating, ventilation, and air conditioning is referred to as HVAC.

An air conditioner has 5 main parts:

  • Refrigerant. Refrigerant (also known as coolant or by its brand name Freon®) is a special fluid that is vital to cooling and freezing technology
  • Compressor
  • Condenser Coil
  • Expansion Valve
  • Evaporator Coil

In systems involving heat transfer, a condenser is a device or unit used to condense a gaseous substance into a liquid state through cooling. ... For example, a refrigerator uses a condenser to get rid of heat extracted from the interior of the unit to the outside air.

An air conditioner compressor is the component in the system that raises the temperature and pressure of the vapor refrigerant that leaves the evaporator coil. ... Its important that the compressor increase the temperature so that it can finish removing the heat from inside the home to the condenser

The expansion valve removes pressure from the liquid refrigerant to allow expansion or change of state from a liquid to a vapor in the evaporator. The high-pressure liquid refrigerant entering the expansion valve is quite warm. ... The liquid refrigerant leaving the expansion valve is quite cold

An air conditioner's evaporator coil, also called the evaporator core, is the part of the system where the refrigerant absorbs heat. ... The evaporator coil is located inside or near the air handler where the blower fan is. Evaporator coils are made from copper, steel, or aluminum because these metals conduct heat easily.