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2. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Minisplit ductless systems are used in these situations.) Outside of North America, packaged systems are only used in limited applications involving large indoor space such as stadiums, theatres or exhibition halls. An alternative to packaged systems is the use of separate indoor and outdoor coils in split systems. Split systems are preferred ...

3. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by

4. Variable refrigerant flow - Wikipedia

   en.wikipedia.org/wiki/Variable_refrigerant_flow

   Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. [1] Similar to ductless mini-split systems, VRFs use refrigerant as the primary cooling and heating medium, and are usually less complex than conventional chiller-based systems.

5. How Democrats Are Faring In First Tests Of The Trump Backlash

   data.huffingtonpost.com/2017/special-elections

   Special Election: Election Date: California Congressional District 34 (Runoff) June 6, 2017: Tennessee House of Representatives District 95: June 15, 2017

6. Timeline of more than 20 U.S. government shutdowns over ... - AOL

   www.aol.com/news/timeline-more-20-u-government...

   With the U.S. government on the verge of a partial shutdown, a timeline of more than 20 closures since 1976.

7. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.