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Labelling
• Equipment shall be labelled stating that it has been de-commissioned and emptied
of refrigerant.
• The label shall be dated and signed.
• For appliances containing flammable refrigerants, ensure that there are labels on the
equipment stating the equipment contains flammable refrigerant.
Recovery
• When removing refrigerant from a system, ensure it is 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 a pressure-relief valve. Associated shut-off valves
shall be 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
appropriate refrigerants including, when applicable, flammable refrigerants. Also, 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 equipment, 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 a qualified professional
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 before
returning the compressor to the suppliers. Only electric heating to the compressor
body shall be employed to accelerate this process. When the oil is drained from a
system, it shall be carried out safely.
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