Toshiba RAV-HM301SDTY-E Owner's Manual page 14

OM_D0X7303301-01_EN_Print.book Page 13 Friday, May 19, 2023 6:48 PM
e) If a vacuum is not possible, make a manifold so that refrigerant
can be removed from various parts of the system.
f) Make sure that cylinder is situated on the scales before recovery
takes place.
g) Start the recovery machine and operate in accordance with
manufacturer's instructions.
h) Do not overfill cylinders. (No more than 80 % volume liquid
charge).
i) Do not exceed the maximum working pressure of the cylinder,
even temporarily.
j) When the cylinders have been filled correctly and the process
completed, make sure that the cylinders and the equipment are
removed from site promptly and all isolation valves on the
equipment are closed off.
k) Recovered refrigerant shall not be charged into another
refrigeration system unless it has been cleaned and checked.
18. Labelling
• Equipment shall be labelled stating that it has been
decommissioned and emptied of refrigerant.
• The label shall be dated and signed.
• Ensure that there are labels on the equipment stating the
equipment contains flammable refrigerant.
19. 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.
• All cylinders to be used are designated for the recovered
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refrigerant and labelled for that refrigerant (i.e. special cylinders for
the recovery of refrigerant).
• Cylinders shall be complete with pressure-relief valve and
associated 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 appropiated 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.
• If 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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