Oil In the Air Conditioning (A/C) System
Corrective actions in the event of slow leakage (longer than 24 hours)
There is not normally a risk of oil loss in event of slow leakage. The following procedures apply when replacing components:
Compressor, replacement
Drain off and measure the amount of oil drained from the compressor. Drain the oil from the new compressor and fill it with exactly the same amount of oil as drained from the original compressor (always at least 70 cm 3 ).
Replacing other components
Drain the oil. Make a note of the volume. Fill up the new components with the same amount of oil.
Corrective actions in event of a fast leak (hose breakage for example)
A fast leak often means that oil escapes with the refrigerant.
When replacing components, the following oil volumes apply to the relevant components.
| Component | Oil |
|---|---|
| Compressor | 180 cm 3 |
| Evaporator | 60 cm 3 |
| Receiver | 20 cm 3 |
| Condenser | 15 cm 3 |
| Hose | 10 cm 3 |
If the system has been completely drained, or flushed out, and it is completely drained of oil the compressor must be filled with 135 cm 3 oil. The remaining 200 cm 3 of oil should be poured into the receiver.