Immergas MAGIS M4-30 Use And Installation page 137

19) Recovery.
When refrigerant is removed from a system, both for maintenance operations and deactivation, good practice is recom-
mended to remove the refrigerant correctly.
When the refrigerant is transferred to cylinders, make sure that only adequate cylinders for recovery of refrigerant are
used. Make sure that a proportionate number of cylinders is available for storage of the total charge of the system. All the
cylinders to be used are specifically dedicated for the recovered refrigerant and labelled accordingly (namely they are spe-
cific cylinders for refrigerant recovery). The cylinders must have a pressure relief valve and relative shut-off cocks in good
working conditions.
The recovery cylinders must be in vacuum and, if possible, cooled before the recovery operation.
The recovery equipment must be in good working order with relative instructions close at hand and it must also be suitable
for the recovery of flammable refrigerants. Lastly, a series of calibrated scales must be available and in good working order.
The flexible hoses must be complete with shut-off valves without leaks and in good conditions. Before using the recovery
instrument, check that it is in satisfactory operating conditions, that maintenance has been performed correctly and all the
associated electric components have been sealed to avoid an accidental ignition in case of a refrigerant leak. Contact the
manufacturer in case of doubts.
The recovered refrigerant must be returned to the refrigerant supplier in the appropriate recovery cylinder and the rela-
tive waste transfer note must be drafted. Do not mix refrigerants in recovery units and above all not inside the cylinders.
Should it be necessary to remove compressors or oil for compressors, make sure that they have been emptied sufficiently to
guarantee that no flammable refrigerant remains inside the lubricant. The emptying procedure must be carried out before
returning the compressor to the supplier. To speed up this operation, only electrical heating should be used on the body of
the compressor. When oil is discharged from a system, the operation must be performed safely.
20) Transport, marking and storage of the appliances.
Transportation of equipment containing flammable refrigerants (Conformity with transport standards).
Marking of equipment with signs (Conformity with local standards).
Disposal of equipment using flammable refrigerants (Conformity with national standards).
Storage of equipment/appliances.
The appliances must be stored in compliance with the instructions of the manufacturer.
Storage of packaged equipment (unsold).
The protection of the storage packaging must be built in such a way that any mechanical damage to the equipment inside
the packaging does not cause a leak of the refrigerant charge.
The maximum number of appliances that can be stored together will be determined by local regulations.
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