Tuesday, July 17, 2012

Thank you Willis Carrier

Today in 1902, the first 'modern' air conditioning unit was designed for use in a Brooklyn printing plant that set the standard for the following AC units.

Previously, of course, there were the use of iceboxes to try to help cool an area down but for the most part, there was little to do when it became too hot, too cold, or too humid. The first cooling unit was created by Alfred Wolff in 1902 to help cool down the NY stock exchange however, this device had no control over humidity, filters to clean the air, or temperature control. Within the span of a few years, the concept rapidly developed creating zones and eventually led Willis Carrier who patented his "Apparatus for Treating Air" being:

1. Control temperature
2. Control humidity
3. Control Air Circulation and ventilation
4. Clean the air

With this patent, Willis took the title of the creator of the modern AC. Later he created several tables that all HVAC technicians are aware of, for example the law of constant dew-point depression.

So, I would like to say, thank you Willis Carrier for 110 years of keeping us cool.

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