Argo LARI-8K Panduan Petunjuk Pengoperasian - Halaman 19

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Labelling

Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label

shall be dated and signed. For appliances containing flammable refrigerants, ensure that there are labels on

the equipment stating the equipment contains flammable refrigerant.

Recovery

When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good

practice that all refrigerants are removed safely.

When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are

employed. Ensure that the correct number of cylinders for holding the total system charge are available. AII

cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special

cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and assodated

shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before

recovery occurs.

The recovery equipment shall be in good working order with a set of instructions concerning the equipment that

is at hand and shall be suitable for the recovery of all appropriate refrigerants including, when applicable,

flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working

order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the

recovery machine, check that it is in satisfactory working order, has been properly maintained and that any

associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult

manufacturer if in doubt.

The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the

relevant waste transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.

lf compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable

level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process

shall be carried out prior to returning the compressor to the suppliers. Only electric heating to the compressor

body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out

safely

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