Aktobis WDH-930EEW Manual de instruções - Página 8

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17. marking

The equipment must be marked to indicate that it has been taken out of service and that the

refrigerant has been drained. The marking must be dated and signed. Ensure that there are

markings on the equipment stating that the equipment contains flammable refrigerant.

18. reprocessing

When removing refrigerant from a system, either for maintenance or decommissioning, it is

recommended standard practice that all refrigerants are safely removed. When transferring

refrigerant into cylinders, ensure that only suitable refrigerant recovery cylinders are used for

this purpose. Ensure that the correct number of cylinders are available to hold the total amount

of refrigerant. All cylinders used must be suitable and labelled for the refrigerant being

reprocessed (i.e. special cylinders for reprocessing refrigerant). The cylinders must have a

pressure relief valve and a connected shut-off valve and be in good working order. Empty

reprocessing cylinders shall be drained of air and, if possible, cooled before reprocessing.

The reprocessing plant shall be in good working order with appropriate instructions concerning

the respective equipment and shall be suitable for the reprocessing of flammable refrigerants. In

addition, a set of calibrated scales in good working order must be available. Hoses must be

complete with leak-free and proper disconnect couplings. Before using the recovery unit, check

that it is in good working order, that it has been properly maintained and that all associated

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

doubt, contact the manufacturer.

The reprocessed refrigerant must be returned to the refrigerant supplier in the correct

reprocessing cylinder and the appropriate disposal certificate must be arranged. Do not mix

refrigerants in remanufacturing units and especially not in cylinders.

If a compressor or compressor oils are to be removed, ensure that they have been evacuated to

an acceptable level to ensure that no flammable refrigerant remains in the lubricant. The

evacuation process must be carried out before returning the compressor to the suppliers. Only

electrical heating of the compressor housing may be carried out to speed up this process. When

draining oil from a system, this must be done in a safe manner.

Aktobis AG, Borsigstr. 20, D-63110 Rodgau / Germany

www.AKTOBIS.de