Engine : Refrigeration AC - 149/610
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| Which of the precautions listed should be taken before opening any part of a refrigeration system for the purpose of accomplishing non-major repairs? |
| A) Bring the part of the system to be opened to a pressure corresponding to the ambient temperature. |
| B) Use the hot gas defrost line to remove any frost on the evaporator coils. |
| C) Bring the part of the system to be opened to 0 psig. |
| D) Set the high-pressure cutout on manual to prevent automatic starting. |
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