Argo DAVEN PLUS 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.

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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.

V 04/23