Monthly Archives: April 2019

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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