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Electric Compressors, EV System Enhancements and Heat Pumps

Mike Bailey’s class, Electric Compressors, EV System Enhancements and Heat Pumps at MACS 2023 Training Event and Trade Show kicks off an impressive track of electric vehicle (EV) training related to climate control, Thursday, February 2, 2023, from 1-2:30pm. Mike’s class will also be presented on Saturday, February 4 from 2:45-4:15pm. Sanden International is the MACS Silver sponsor of the Electric Vehicle Training Program.

This class is about:

Electric Compressors, EV System Enhancements and Heat Pumps

EV and hybrid manufacturers are searching for every yard/meter of range they can squeeze out of their vehicles. In the race to get their newest offerings into the driveways of consumers, range is a major factor. HVAC can severely effect vehicle range, and engineers are doing everything possible to reduce the impact of this creature comfort/necessity.

We will explore electric compressor design, 3-phase motor operation, and electronic compressor control. Testing a HIGH VOLTAGE (HV) electric compressor requires PPE, specific equipment, and procedures; both will be discussed and safely demonstrated.

Heat pump system theory, design, components, and operation will be discussed and demonstrated in heating and cooling modes using temperature and pressure analysis. Thermal management systems which usually incorporate an electric compressor and heat pump, will be fully explained.

Attend this highly informative mobile A/C training class and many more informative classes when your register for MACS 2023 Training Event and Trade Show, February 2-4, 2023, at the Gaylord Opryland Hotel and Convention Center In Nashville, TN.

Please make your Gaylord Opryland hotel reservations by January 9, 2023.

View the entire MACS 2023 Training Event program

Questions? Call MACS at 215-631-7020 x 0 or email

One response to “Electric Compressors, EV System Enhancements and Heat Pumps”

  1. Thomas Lech says:

    I look forward and hope one of the topics covered is oil balance on EV vehicles that have heat pumps after front an accident auto collisions, that rupture, liquid lines or the suction line connected to the accumulator oil vapor pick up suction line, when ruptured immediately releasing the entire contents of liquid, refrigerant mixed with a large volume of oil in an instant.

    The vehicles get charged up like normal and unsuspecting technician who is performing the recharge may not understand that this vehicle has just lost a few ounces of oil and not just the 40 mL that might be recommended to be replaced during a normal condenser replacement.

    New young technicians, who are just coming into this industry have not been made aware that accumulators just the desiccant bag material itself can absorb and hold a few ounces of refrigerant oil like on the Prius prime under the passenger side. Bumper facia gets hit every time and the tire assembly is replaced..

    How is somebody with no experience and the poor manufacturer literature that doesn’t exactly explain how much oil needs to be replaced at the time that accumulator has been damaged and replaced or has been punctured with a rapid release of liquid refrigerant caring a large amount of refrigerant oil out with it .

    After recharge, the vehicle will operate normally and depending on usage and climate may operate for quite a long time before the eventual, slow starvation of lack of refrigerant oil back to the compressor at a much later date burns up the compressor slowly gradually