Air Conditioning (A/C) Electric Compressor ACCM

Refer to: Specifications . for the appropriate refrigerant and refrigerant oil. The refrigerant and refrigerant oil listed are the only oils to be used as the refrigerant system lubricant for electric vehicles. Addition of any oil other than the referred to oils for the refrigerant system damages the A/C electric compressor and contaminate the refrigerant system. Use the oil adding procedure specified for this vehicle when installing a new A/C electric compressor.

For BEV the A/C electric compressor may run and airflow may be felt when the climate control is off to provide cooling to the battery.

The ACCM is an integral part of the A/C electric compressor and cannot be removed from or serviced separately. The ACCM has both low voltage and high voltage connections. The ACCM requires a low voltage system operating voltage between 9 and 16 volts. The ACCM also requires high voltage system operating voltage between 110 and 467 volts. The A/C electric compressor allows for A/C operation to continue even when the vehicle is in full electric mode, when battery voltage allows. The high voltage low current fuse supplies voltage to the cabin coolant heater and ACCM. When the ACCM receives the A/C request message, it engages the A/C electric compressor. Instead of cycling ON and OFF like a traditional A/C compressor, the A/C electric compressor speeds up or slows down as required.