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** How Air Conditioners Work **

by Marshall Brain, Charles W. Bryant and Sara Elliott

· Page
· 1

How Air Conditioners Work

· 2

Air-conditioning Basics

· 3

The Parts of an Air Conditioner

· 4

Window and Split-system AC Units


Watch as Marshall Brain explains how an air conditioner works in this


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The first modern air conditioning system was developed in 1902 by a young
electrical engineer named Willis Haviland Carrier. It was designed to solve
a humidity problem at the Sackett-Wilhelms Lithographing and Publishing
Company in Brooklyn, N.Y. Paper stock at the plant would sometimes absorb
moisture from the warm summer air, making it difficult to apply the layered
inking techniques of the time. Carrier treated the air inside the building
by blowing it across chilled pipes. The air cooled as it passed across the
cold pipes, and since cool air can't carry as much moisture as warm air,
the process reduced the humidity in the plant and stabilized the moisture
content of the


how do air conditioners work

Air conditioning - Wikipedia, the free encyclopedia


** Air conditioning **

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*This article has multiple issues*. Please help *improve it* or discuss
these issues on the *talk page*.

This article *needs additional citations for verification*. Please help
improve this article by adding citations to reliable sources. Unsourced
material may be challenged and removed. /(August 2012)/

This article *may require cleanup to meet Wikipedia's quality standards*.
The specific problem is: *facts need to be verified and writing style needs
to be consistent.*. Please help improve this article if you can. /(August

A typical home air conditioning window unit.

*Air conditioning* is the process of altering the properties of air
(primarily temperature and humidity) to more favourable conditions. More
generally, air conditioning can refer to any form of technological cooling,
heating, ventilation, or disinfection that modifies the condition of

An *air conditioner* (often referred to as *air con*, *AC* or *A/C*, and
not to be confused with the abbreviation for alternating current) is a
major or home appliance, system, or mechanism designed to change the air
temperature and humidity within an area (used for cooling and sometimes
heating depending on the air properties at a given time). The cooling is
typically done using a simple refrigeration cycle, but sometimes
evaporation is used, commonly for comfort cooling in buildings and motor
vehicles. In construction, a complete system of heating, ventilation and
air conditioning is referred to as "HVAC".

Air conditioning can also be provided by a simple process called free
cooling which uses pumps to circulate a coolant (typically water or a
glycol mix) from a cold source, which in turn acts as a heat sink for the
energy that is removed from the cooled space. Free cooling systems


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