Kia Soul EV: Heat Pump / Refrigerant Direction Control Valve Repair procedures

Kia Soul EV (PS EV) 2015-2020 Service Manual / Heating,Ventilation, Air Conditioning / Heat Pump / Refrigerant Direction Control Valve Repair procedures

Inspection

1. Vcc
2. Ground

Check the voltage between terminals 6 and 7.
1.
Using the tester, check the resistance between terminals 1 and 2.
Temperature
Resistance [K?]
°C
°F
-30
-22
8.7~9.5
-25
-13
8.92~9.74
-20
-4
9.14~9.98
-15
5
9.37~10.23
-10
14
9.59~10.47
-5
23
9.81~10.71
0
32
10.03~10.95
5
41
10.25~11.19
10
50
10.47~11.43
15
59
10.69~11.67
20
68
10.90~11.90
25
77
11.12~12.14
30
86
11.34~12.38
35
95
11.55~12.61
40
104
11.77~12.85

Replacement
[3-WAY Solenoid Valve]
1.
Recover the refrigerant with a recovery/ recycling/ charging station.
   
Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
Since the electric compressor uses high-voltage, POE oil with high resistivity should be used.Since the electric compressor uses high-voltage, POE oil with high resistivity should be used.
If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.
2.
Disconnect the negative (-) battery terminal.
3.
Disconnect the 3-WAY solenoid valve connector (A).

4.
Remove the refrigerant line after loosening the mounting nuts (A).

5.
Remove the 3-WAY solenoid valve assembly (A) after loosening the mounting bolt and nut.

6.
Install in the reverse order of removal.
   
Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
Since the electric compressor uses high-voltage, POE oil with high resistivity should be used.
If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.
[2-WAY Solenoid Valve]
1.
Recover the refrigerant with a recovery/ recycling/ charging station.
   
Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
Since the electric compressor uses high-voltage, POE oil with high resistivity should be used.
If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.
2.
Disconnect the negative (-) battery terminal.
3.
Disconnect the 2-WAY solenoid valve connector (A).

4.
Remove the refrigerant line after loosening the mounting nuts (A).

5.
Remove the 3-WAY solenoid valve assembly (A) after loosening the mounting bolt and nut.

6.
Install in the reverse order of removal.
   
Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
Since the electric compressor uses high-voltage, POE oil with high resistivity should be used.
If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.
Refrigerant Direction Control Valve Description and Operation
Description Changes the valve outlet direction with an electric signal to switch the refrigerant flow direction. This switching of refrigerant flow direction allows activation of A/C Mode and H ...

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