Volkswagen Touran Service Manual: Electrically-Driven A/C Compressor for High Voltage System
Caution
| Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
system. |
| Only use tools and materials approved by the
manufacturer. |
| The warranty is voided if non-approved tools or
materials are used. |
|
| All components of the refrigerant circuit submitted for
quality observation are always to be sealed (use original
sealing caps of original part). |
| Replace damaged or leaking components of refrigerant
circuit. Refer to
→ Chapter "Components, Replacing". |
| To date, the original parts (compressor, reservoir,
receiver/dryer, evaporator and condenser) have been filled with
nitrogen gas. This charge is being gradually discontinued. There
is little or no pressure equalization when removing the sealing
plugs from the original part. |
WARNING
| Hybrid vehicles have a high voltage system. 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. |
| De-energize the high voltage system. Refer to
Electric Drive; Repair Group 93; High Voltage System,
De-Energizing. |
|
WARNING
| The electrically-driven A/C compressor has a
different refrigerant oil! |
| See vehicle-specific repair manual. |
|
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|
|
| Electrically-driven A/C compressor |
WARNING
| 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. |
|
| 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
→ Chapter "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. |
|
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|
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
sys ...
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
sys ...
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A/C without Magnetic Clutch with Torsion-Elastic Clutch
Condenser