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AHP60-14/18 -
Installation, Use and Maintenance
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j) If the recycling bottles are filled as required and the process
is completed, ensure that the bottles and equipment are
immediately removed from the facility and that all shut-off
valves are closed.
k) Recovered refrigerant must not be used to fill other systems
until it has been purified and examined.
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Marking (on the heat pump)
If the heat pump has been taken out of service, affix the
following marking, along with the date and signature,
prominently on the heat pump:
■ The refrigerant is inflammable.
■ The installation is not in service.
■ The refrigerant has been removed.
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Recover the refrigerant and the compressor oil
Recovery
If the refrigerant has to be recovered for repair or
decommissioning, care must be taken to ensure that this is
done safely.
If the refrigerant is put into bottles, make sure that only
appropriate refrigerant bottles are used for this purpose.
Make sure that there are enough refrigerant bottles ready to
receive the full volume in the installation. All refrigerant bottles
used must be suitable for the refrigerant to be recovered
and labelled accordingly (i.e., special recycling bottles for
refrigerant recovery). The refrigerant bottles must contain a
safety valve and shut-off valves that are firmly attached and
in good condition. Empty recycling bottles are evacuated and
must be cooled down before the suction process, if possible.
The draining devices must be in good condition and suitable
for the recovery of flammable refrigerant. Instructions for each
step of the recovery procedure are to be found near to the
device. In addition, calibrated scales must be available and
in good condition. The hoses must be equipped with hermetic
fittings and in good condition. Before using the draining device,
you must check that it is in good condition, that it has been
maintained correctly and that the electrical devices belonging
to it have been waterproofed to avoid ignition in case of a
refrigerant leak. In case of doubt, contact the manufacturer.
The refrigerant recovered must be returned to the supplier
in a proper recycling bottle. Do not mix refrigerants in the
refrigerant bottles.
When compressors or compressor oil are to be drained, care
must be taken to ensure that they are drained at a pressure
level that is sufficiently low to ensure
that there is no refrigerant left in the oil. Before returning the
compressor to the manufacturer, it must be evacuated. This
process should only be accelerated by electrically heating
the compressor housing. If the oil has to be removed from an
installation, it must be done with appropriate caution.
Measure
Performed
Remark
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