| Charging refrigerant circuit using A/C service station |
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| Always follow the procedure described in the user's manual for your A/C service station. |
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| Before charging the refrigerant, check the refrigerant oil quantity → Rep. Gr.87. |
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| The entire refrigerant charging quantity can be introduced either into the high-pressure or the low-pressure side. |
| Charging the refrigerant circuit |
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| Evacuating refrigerant circuit using A/C service station → Chapter. |
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| Turn handwheel of quick-release connector adapters outwards (close). |
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| Allow refrigerant to flow into charging hose. |
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| Turn handwheel of quick-release connector adapter inwards (do not overstress the valve) and charge system with prescribed quantity of refrigerant. |
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| Switch off A/C service station. |
Note! | If the A/C compressor was removed, the V-belt pulley /freewheel must be turned by hand approx. 10 times prior to initial operation. This prevents damage from occurring by fluid build up in the A/C compressor when the air conditioning system is switched on for the first time (if there is oil in the cylinder of the A/C compressor, it will be forced out by the turning motion). |
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| Start with engine with air conditioner compressor switched off (if it is the type with a magnetic clutch). |
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| Set air conditioner compressor to lowest possible setting; select "Econ" mode or A/C Off (if version without magnetic clutch, but with regulating valve). |
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| Wait until idling speed has stabilized: |
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| Switch air conditioner compressor on and let system run for at least 2 minutes with engine idling. |
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| If necessary, check pressures in refrigerant circuit using A/C service station. |
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| Turn out handwheel on quick-release coupling adapter. |
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| Remove charging hoses from refrigerant circuit. |
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| Screw on sealing caps again. |
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