Engine : Refrigeration AC - 282/610
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| In a low-pressure centrifugal chiller, what is meant by the term 'high efficiency purge unit?' |
| A) Those purge units which need the least amount of on-going maintenance. |
| B) Those purge units which draw very little electrical power. |
| C) Those purge units which discharge the highest percentage of refrigerant with the air being removed. |
| D) Those purge units which discharge very little refrigerant with the air being removed. |
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