Regardless of the style of the system, the basic
components and method of operation are similar for all
electric compression-cycle systems. The major elements
are an evaporator coil, a condenser coil, fans to circulate
air over both coils, tubing to carry a refrigerant between
the two coils, a compressor to move the refrigerant
through the system, and a metering device to regulate the
rate of refrigerant low.
Air conditioning systems use several basic principles of
physics to remove heat from within a house: (1) a refrigerant
absorbs heat when it changes from a liquid to a gas; (2) a refrigerant releases heat when it changes from a gas to
a liquid; and (3) heat moves from a medium at a high
temperature to a medium at a lower temperature.
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