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Only for training and service purposes
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Example. Slave2 ODU Inv Comp failure
1. Close liquid pipe and common pipe of the unit for pump out operation.
2. Operate pump out
3. Close gas pipe of unit after completion
4. End pump out
5. Eliminate refrigerant in common pipe after opening the common pipe of corresponding ODU.
Replace compressor and perform vacuum.
6. Add the refrigerant with auto charging function
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