Midea MPPB-14CRN7 Manuel D'utilisation page 53

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  • FRANÇAIS, page 85
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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 is available. All 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 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 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. 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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