Tag Archives: HFC-134a

EPA’s HFC Regulation Thrown Out by US Court


By Steve Schaeber, MACS Technical Editor On August 8, 2017, a US District Court of Appeals reversed a 2015 EPA rule which removed R-134a from their SNAP list of acceptable substitute refrigerants for newly manufactured passenger cars and light trucks … Continue reading

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Looking for mobile A/C wiring diagrams? We know where they are!


MACS mobile A/C diagnostics app includes wiring diagrams for mobile A/C systems for cars and light duty trucks. The only way to get the MACS mobile A/C diagnostics app is to become a MACS member. Join Now! Visit the MACS … Continue reading

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Tata Motors and MAHLE partner together to develop a prototype Secondary Loop Mobile Air Conditioning System on a vehicle


Tata Motors Limited and MAHLE, one of the world’s 20 largest suppliers to the automotive industry, have signed a joint development agreement for designing and developing a Secondary Loop Mobile Air Conditioning System (SL–MAC), under the aegis of United Nations … Continue reading

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Today’s technicians need to be total climate control management forensic scientists  


  MACS June ACTION Magazine is all about mobile A/C diagnostics! By Peter Orlando, MACS Contributor  Technicians need proper skills to work on today’s climate control systems. It is up to industry professionals to ensure they are service-ready and have … Continue reading

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2016: A busy year!


By Steve Schaeber, MACS manager of service training It’s been quite a busy year in mobile A/C, and not just because of the long, hot summer season that started here on 5/26 (our first heat wave) and ended on 9/23. … Continue reading

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Countries Agree to curb powerful greenhouse gases in largest climate breakthrough since Paris


The amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer endorsed in Kigali is the single largest contribution the world has made towards keeping the global temperature rise “well below” 2 degrees Celsius, a target agreed at … Continue reading

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MACS Mobile A/C Best Practices Class – October 21 Dallas Area


Click here to find out more about this clinic and register to attend

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New EPA rule allows R-1234yf in certain trucks


By Steve Schaeber, MACS Technical Editor If you’ve been waiting to see R-1234yf in something larger than a ½ ton pickup truck, you might not have to wait too much longer. A new EPA rule that was just signed last … Continue reading

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Repeat blower motor issue


By Steve Schaeber, MACS Technical Editor An old boss of mine used to have a saying that goes something like: I ain’t got time to be doing the same thing two and three times! In fact, I can still picture … Continue reading

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Change is coming to heavy duty refrigerants


By Steve Schaeber, MACS manager of service training Last year around this time the US Environmental Protection Agency (EPA) finalized Rule # 20, which was a Change of Status Rule affecting several industrial sectors including MVAC (Motor Vehicle Air Conditioning). … Continue reading

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