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www.callaqm.com/blog/air-conditioning-replaced-2020

For decades, Freon, also known as HCFC-22 and R-22, was the main refrigerant chemical used in residential air conditioning units and heat pumps. To help protect the ozone layer, the EPA has mandated that the production of Freon be stopped by January 2020. The good news is that new air conditioning systems made since 2010 no longer rely on Freon.

www.snopes.com/fact-check/freon-based-ac-2020

Will All Freon-Based Air Conditioners Need to Be Replaced by 2020? Although the the production or import of a chemical used in Freon will be banned in the U.S. beginning in 2020, Freon-based A/C ...

learn.compactappliance.com/freon-air-conditioner

If you’re like most people, you rely on your air conditioner in the summer to keep you cool and comfortable. Whether it’s in your car or home, many air conditioners manufactured before 2003 use Freon as the refrigerant that cools the warm air.

www.doityourself.com/stry/how-to-add-freon-to-your-central-air-conditioner

If you've noticed that your central air conditioner isn't cooling your home quite as well as it used to, the culprit may be Freon leak in your system. Freon is a refrigerant, or coolant, which helps your AC unit evaporate its internal heat and allows the air is expels to actually be cool.

home.howstuffworks.com/what-is-air-conditioner-freon.htm

Freon is the cooling agent used in most air conditioning systems. Every air conditioning system needs a refrigerant (also called a coolant) that actually creates the cool air -- that's the role of Freon. As necessary as Freon is to the optimal performance of your your air conditioner, you do not want to handle a potential Freon problem yourself.

www.wikihow.com/Charge-a-Home-Air-Conditioner

How to Charge a Home Air Conditioner. One of the most expensive items on your electric utility bill in areas with hot summers is the cost of operating a central air conditioner. If your unit doesn't have the correct amount of refrigerant,...

www.homeadvisor.com/cost/heating-and-cooling/home-ac-recharge-freon-refill

HomeAdvisor's Home Air Conditioner Refill or Recharge Cost Guides gives the average cost to recharge a home ac by refilling or adding Freon. Compare R22 Freon costs with the price of other popular refrigerants.

gilmoreair.com/.../r-22-refrigerant-ban-and-how-it-affects-your-air-conditioner

Until a few years ago, many air conditioners sold in the United States used the refrigerant chlorodifluoromethane, usually referred to “R-22.” R-22 is one of a number of gases marketed under the brand name Freon, and has been commonly used as a coolant in air conditioners, heat pumps, and other appliances.

www.startribune.com/does-your-air-conditioner-use-r-22-refrigerant-here-s-why...

Most air conditioners use one of two types of refrigerant: R-22 or R-410A. I've never paid any attention to this detail while inspecting houses because it didn't make much difference, but that's ...

www.epa.gov/ods-phaseout/homeowners-and-consumers-frequently-asked-questions

The refrigerant used in your home air conditioner is typically listed on the unit’s nameplate. For central air conditioners, the nameplate is usually on the outdoor condenser. If there is no nameplate, check your owner's manual or contact the person or company that sold or services your air conditioner.