E-Compressor For Hybrid Vehicles

WARNING:

High voltage at the high voltage system in a hybrid vehicle. Health risks to persons with life assist systems.
It will also be necessary to work on the high voltage system when performing the following procedures. Any work to be performed on a vehicle with a high voltage electrical system may only be performed by technician specifically trained to work on this system. The work must be performed by a certified high voltage technician.
Follow the General Warnings for working on the high voltage electrical system Electric Drive; Repair Group 93; General Warnings for Working on High Voltage Electrical Systems.
Switching off the high voltage system Electric Drive, Repair Group 93, Switching off the high voltage system

WARNING:

Danger of short circuit

The A/C compressor works with 288 volts at 800 to 8, 600 RPM.

Do not touch the A/C compressor when starting the drive generators, danger of short circuit.

Fig 1: Identifying E-A/C Compressor

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The A/C compressor extracts the refrigerant gas from the evaporator, compresses it and relays it to the condenser.

NOTE:

The A/C compressor contains refrigerant oil, which can be mixed with refrigerant R134a under any temperature.

The type plate lists the type of refrigerant required for the A/C compressor. The RPM controls the delivery.

The engine should only be started if the refrigerant circuit is completely assembled. Refer to REFRIGERANT CIRCUIT, GENERAL PRECAUTIONS .

The A/C compressor is equipped with a protected oil supply, this prevents A/C compressor damage in the event that the system is empty. This means that approximately 40 to 50 cm³ of refrigerant oil remains in the A/C compressor.

The A/C compressor has a relief valve.