Engine : Refrigeration AC - 900/610
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| The most cost-effective method of recovering refrigerant from a low-pressure chiller with more than 500 lbs. of refrigerant and to meet EPA requirements is to recover the refrigerant using what protocol? |
| A) recovery using a vacuum pump based vapor recovery machine only |
| B) liquid recovery using a liquid pump, followed by vapor recovery using a vacuum pump based recovery unit |
| C) vapor recovery using a vacuum pump based recovery unit followed by liquid recovery using a liquid pump |
| D) recovery using a liquid pump only |
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| - (0) |
| What its called is a ozone machine |