1234yf, Read the label, heed the label!


By Paul DeGuiseppi, MACS Manager of Service Training

Here’s a photo of one of the first R-1234yf labels you’ll see on the street. This one’s stuck on a 2013 Cadillac XTS4, the first GM car to use the new refrigerant.

What’s the meaning of all those symbols and nomenclature on the label?

Let’s start at the bottom left, and work our way around the label:

  • Technicians must be certified;
  • The refrigerant is flammable;
  • Caution must be taken when working on the system;
  • Don’t place hands in the vicinity of the condenser fan; the fan can start automatically;
  • Make sure you are educated about it before attempting to work on the system;
  • The refrigerant used in the system is R-1234yf; the amount is 0.620 kilograms (that’s about 1.37 pounds, or about one pound, six ounces for our metrically-challenged readers);
  • PAG oil is the type used in the system;
  • SAE J639: SAE standard J639, “Safety Standards for Motor Vehicle Refrigerant Vapor Compressions Systems,” applies;
  • SAE J2842: SAE standard J2842, “R-1234yf and R744 Design Criteria and Certification for OEM Mobile Air Conditioning Evaporator and Service Replacements,” applies;
  • SAE J2845: SAE standard J2845, “R-1234yf [HFO-1234yf] and R-744 Technician Training for Service and Containment of Refrigerants Used in Mobile A/C Systems,” applies

So now you know. Look for similar labels on other new GM vehicles in the future. Certain other car makers are also scheduled to start using R-1234yf. Keep an eye on this space, and we’ll try to let you know who, and when.

The Mobile Air Conditioning Society’s blog has been honored as the best business to business blog in the Automotive Aftermarket by the Automotive Communications Awards and the Car Care Council Women’s Board!

When having your mobile A/C system professionally serviced, insist on proper repair procedures and quality replacement parts. Insist on recovery and recycling so that refrigerant can be reused and not released into the atmosphere.

If you’re a service professional and not a MACS member yet, you should be, click here for more information.

You can E-mail us at macsworldwide@macsw.org or visit http://bit.ly/cf7az8 to find a Mobile Air Conditioning Society member repair shop in your area. Visit http://bit.ly/9FxwTh to find out more about your car’s mobile A/C and engine cooling system.

The 33rd annual Mobile Air Conditioning Society (MACS) Worldwide Training Conference and Trade Show, Be the Best of the Best will take place February 7-9, 2013 at the Caribe Royale, Orlando, FL.

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About macsworldwide

Mobile Air Conditioning Society (MACS) Worldwide Founded in 1981, MACS is the leading non-profit trade association for the mobile air conditioning, heating and engine cooling system segment of the automotive aftermarket. Since 1991, MACS has assisted more than 600,000 technicians to comply with the 1990 U.S. EPA Clean Air Act requirements for certification in refrigerant recovery and recycling to protect the environment. The Mobile Air Conditioning Society (MACS) Worldwide’s mission is clear and focused--as the recognized global authority on mobile air conditioning and heat transfer industry issues. www.macsw.org
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One Response to 1234yf, Read the label, heed the label!

  1. Steve Clarke says:

    Paul, Thanks for the info on the new labeling,I will make copies and pass it on to my students, as I am now an Automotive Instructor at A.T.C. in Exton, I am currently teaching Air Conditioning and Hand Held Diagnostics. I could also use any advise you can provide to be a better teacher, I figure go to the best Hvac trainer in the industry for advise. Again, Thank You, for any help you can provide.

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