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A digital scale is needed to prevent overfilling.
comply
3. The knob should be in the "Close" Position before operation. All the valves must be closed, the input and
output fittings should be covered with protective caps when the unit is not in operation. The air/ moisture is
harmful to the recovery result and will shorten the life span of the unit.
4. A filter drier should always be used and should be replaced regularty. And each type of refrigerant must have
its own filter. For the sake of ensuring the normal operation of the unit, please use highquality filter drier
specified by our company. A high quality filter drier will help protect machine .
determine
plugged
cool the tank down.
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