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2. R-410A - Wikipedia

   en.wikipedia.org/wiki/R-410A

   R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...

3. Air source heat pump - Wikipedia

   en.wikipedia.org/wiki/Air_source_heat_pump

   Replacements such as R-32 and R-410A are being promoted as environmentally friendly but still have a high GWP. [68] A heat pump typically uses 3 kg of refrigerant. With R-32 this amount still has a 20-year impact equivalent to 7 tons of CO 2, which corresponds to two years of natural gas heating in an average household. Refrigerants with a high ...

4. Vapor-compression refrigeration - Wikipedia

   en.wikipedia.org/wiki/Vapor-compression...

   A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.

5. AOL Mail

   mail.aol.com

   With your AOL account you get features like AOL Mail, news, and weather for free! ... Should you need additional assistance we have experts available around the clock ...

6. The wait is over: Yuengling to be available in Illinois ... - AOL

   www.aol.com/wait-over-yuengling-available...

   How many states serve Yuengling? Illinois will be the 28 th state to serve the brew, following states such as Kansas, Missouri, and Oklahoma in 2023.. When will it be available? Draft beers will ...

7. Putin says Russia is ready to compromise with Trump on ...

   www.aol.com/news/putin-says-russia-getting...

   MOSCOW (Reuters) -Russian President Vladimir Putin said on Thursday that he was ready to compromise over Ukraine in possible talks with U.S. President-elect Donald Trump on ending the war and had ...

8. What is it the red fire retardant dropped by planes to fight ...

   www.aol.com/red-fire-retardant-dropped-planes...

   Between 2009 and 2021, over 440 million gallons of long-term fire retardant were dumped across federal, state and private land, most of it in the western U.S., according to federal estimates.

9. Chlorodifluoromethane - Wikipedia

   en.wikipedia.org/wiki/Chlorodifluoromethane

   The energy efficiency and system capacity of systems designed for R-22 is slightly greater using R-22 than the available substitutes. [11] R-407A is for use in low- and medium-temp refrigeration. Uses a polyolester (POE) oil. R-407C is for use in air conditioning. Uses a minimum of 20 percent POE oil. R-407F and R-407H are for use in medium ...