Once acid is created within the refrigeration system:
A) It can cause a burnout when the refrigerant is exposed to the compressor motor.
B) It becomes impossible to remove brazing oxides and metal particles from the system, even if a filter drier is used.
C) Only a multiple evacuation procedure can be used to evacuate the refrigeration system.
D) Dry nitrogen must be used to reverse the increase in system high-side pressure caused by the acid.
A
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