29
English
Safety precautions
• 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 fl ammable
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 fl ammable 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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