Oil

OIL

Maintenance of Electric Compressor Oil Quantity in Electric Compressor

CAUTION: Use only Electric Compressor Oil ND-OIL 11 for the electric compressor of the air conditioning system. Using other A/C oils may damage the A/C system as they may conduct electricity.

The electric compressor oil in the electric compressor circulates through the system with the refrigerant. Add electric compressor oil to electric compressor when replacing any component or after a large refrigerant leakage has occurred. It is important to maintain the specified amount.

If electric compressor oil quantity is not maintained properly, the following malfunctions may result:
- Lack of electric compressor oil: May lead to a seized electric compressor
- Excessive electric compressor oil: Inadequate cooling (thermal exchange interference)

ELECTRIC COMPRESSOR OIL
- Electric compressor oil type: Electric Compressor Oil ND-OIL 11

CHECKING AND ADJUSTING

CAUTION: If excessive electric compressor oil leakage is noted, do not perform the electric compressor oil return operation.
Set the following conditions:






Adjust the electric compressor oil quantity according to the given table.

Electric Compressor Oil Adjusting Procedure for Components Replacement Except Electric Compressor
After replacing any of the following major components, add the correct amount of electric compressor oil to the system.






Electric Compressor Oil Adjustment Procedure for Electric Compressor Replacement






1. Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
2. Connect recovery/recycling equipment to vehicle. Confirm refrigerant purity in supply tank using recovery/recycling equipment and refrigerant identifier. If NG, refer to "Contaminated Refrigerant".
3. Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identifier. If NG, refer to "Contaminated Refrigerant".
4. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure electric compressor oil discharged into the recovery/recycling equipment.
5. Drain the electric compressor oil from the "old" (removed) electric compressor into a graduated container and recover the amount of electric compressor oil drained.
6. Drain the electric compressor oil from the "new" electric compressor into a separate, clean container.
7. Measure an amount of new electric compressor oil installed equal to amount drained from "old" electric compressor. Add this electric compressor oil to "new" electric compressor through the suction port opening.
8. Measure an amount of new electric compressor oil equal to the amount recovered during discharging. Add this electric compressor oil to "new" electric compressor through the suction port opening.
9. If the liquid tank also needs to be replaced, add an additional 5 ml (0.2 US fl oz, 0.2 Imp fl oz) of electric compressor oil at this time.

CAUTION: Do not add the 5 ml (0.2 US fl oz, 0.2 Imp fl oz) of electric compressor oil if only replacing the electric compressor and not the liquid tank.