Engine : Expired / Refrigeration AC - 58/252
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| The pressure in the part of a high pressure refrigeration system about to be opened for a non-major repair should be brought to what value? |
| A) 11 to 12 psig |
| B) 4 to 7 psig |
| C) 0 psig |
| D) 1 to 2 psig |
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