Author Archives: macsworldwide

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

The future is electric!


June ACTION 2019 Hybrid and electric vehicle air conditioning compressor hardware, power controls and diagnostics For more than 15 years, hybrid and electric vehicles have been using electric air conditioning compressors.  The reason for the use of these air conditioning … Continue reading

Posted in #1234yf, ACtion Magazine, Automotive training, Electrical/Electronic, Hybrid, Refrigerants, Training | Tagged , , , , , , , , | Leave a comment

Finding yf (2019 Refrigerant Update)


By Steve Schaeber, MACS Technical Editor (May 20, 2019) ©2019 Mobile Air Conditioning Society Worldwide As part of our continuing effort to document the industry’s changeover to R-1234yf, MACS once again attended the Philadelphia Auto Show to see the new … Continue reading

Posted in #1234yf, ACtion Magazine, Automotive, MACS Member, Mobile Air Conditioning, Refrigerants, Uncategorized | Leave a comment

Are you making the most of your equipment?


Independent garages have been slow to make the investment in equipment to work on R-1234yf systems, and many car dealers’ service departments couldn’t be happier about that.  When the car manufacturers, whose products they sell, began the changeover, new recovery/recycle/recharge … Continue reading

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Heavy duty truck and off-road training digest


By Dr. Alex Moultanovsky The MACS session began with Dan Spurgeon of CAT who introduced the new Track-Type Tractor D6. Dan pointed out that the D6 is equipped with a completely new design HVAC system called Conditioner Group, which is … Continue reading

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Cars with a different gas (R-415B)


By Steve Schaeber, MACS Technical Editor Some Chinese vehicles are being shipped to South America with a different type of refrigerant gas than what most technicians are used to seeing. In this case it’s a blend refrigerant called R-415B. Sightings … Continue reading

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MACS to Sponsor Automotive Software & Electronics Boot Camp with Dr. Mark Quarto


The Mobile Air Conditioning Society (MACS) Worldwide is pleased to sponsor the Automotive Software and Electronics Boot Camp with Dr. Mark Quarto Quarto in partnership with FutureTech Auto at the MACS training center in Lansdale, PA September 16-20, 2019. Top … Continue reading

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Are you ready for A/C season?


Reviewing the fundamentals: Pressures We started out with a brief review of A/C system pressure testing order to build up to the major point of the class which was the effect of variable displacement compressor solenoids on temperature and pressure … Continue reading

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Do you know how to find coolant leaks?


Finding Coolant Leaks Some days, around this time of year, it feels like all we do is chase down coolant leaks. Maybe that has something to do with weather patterns and large swings in ambient temperature. It may also relate … Continue reading

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A Conversation with Ward Atkinson on A/C history & GM


By Steve Schaeber, MACS Technical Editor In this video (see link below), MACS technical advisor Ward Atkinson discusses the early days of mobile A/C development, and some of his experiences while working at GM (specifically the Chevrolet Division of General … Continue reading

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Possible new EPA regulation coming in 2019


By Steve Schaeber, MACS Manager of Service Training Those of you who have been following MACS WordPress BLOG know that much has taken place regarding refrigerant regulations in the last few years. Our recent saga started back in 2015 when … Continue reading

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