Kia Soul EV: Air Conditioning System / Compressor Oil Repair procedures

Kia Soul EV (PS EV) 2015-2020 Service Manual / Heating,Ventilation, Air Conditioning / Air Conditioning System / Compressor Oil Repair procedures

Oil Specification
The HFC-134a system requires synthetic compressor oil (POE) whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.
Compressor oil (POE) varies according to compressor model. Be sure to use oil specified for the model of compressor.
Since the electric compressor uses high-voltage, POE oil with high volumetric resistivity should be used.
Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
If the POE oil of the system gets mixed with PAG oil, then dielectric breakdown due to decreased volumetric resistivity can occur and inoperative A/C compressor may result, A/C compressor may not work.
If the POE oil gets mixed with PAG oil, replace the compressor with new one and clean inside the A/C system (condenser, refrigerant line, evaporator and etc.)
Handling of Oil
The oil should be free from moisture, dust, metal powder, etc.
Do not mix with other oil.
The water content in the oil increases when exposed to the air. After use, seal oil from air immediately. (HFC-134a and R-1234yf compressor oils are prone to absorb moisture.)
The compressor oil must be stored in steel containers, not in plastic containers.
Compressor Oil Check
The oil used to lubricate the compressor is circulating with the refrigerant.
Whenever replacing any component of the system or a large amount of gas leakage occurs, add oil to maintain the original amount of oil.

Total volume of oil in system
POE OIL : 180 ±10cc (6.1 ± 0.3 oz.)

Oil Recovery Operation
There is close affinity between the oil and the refrigerant.
During normal operation, part of the oil recirculates with the refrigerant in the system. When checking the amount of oil in the system or replacing any components of the system, the compressor must be running in advance of oil recovery operation. The procedure is as follows:
Open all the doors and the engine hood.
Start the engine, turn the air conditioning switch "ON" and set the blower motor control knob to its highest position.
Run the compressor for more than 20 minutes between 800 and 1,000 rpm in order to operate the system.
Stop the engine.
Components and Components Location
Component Location Index Engine Room [Without Heat Pump] 1. Receiver-drier2. Condensor3. A/C Pressure Transducer (APT)4. Service port (Low pressure)5. Service port (High pressure)6. Sucti ...

Refrigerant line Components and Components Location
Component Location [Without Heat Pump] 1. Refrigerant line [With Heat Pump] 1. Refrigerant line ...

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