Vent the nitrogen to atmosphere and vacuum the system for 30 minutes to remove any moisture. Now charge the system with refrigerant and introduce 5-10ml of UV dye.
将大气释放在空气中，将系统抽成真空，保持30分钟来去除所有水分。现在在系统中加入制冷剂，并加入3-10毫升的紫外线着色剂。
The refrigerant cleaning system can accompany the waste oil separation and to charge the relevant new oil.
具有冷媒净化装置，能把空调中的废油分离，并且可给空调加入相应的新油；
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