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commissioned 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.
11 RECOVERY
When removing refrigerant from a system, either for ser-
vicing or decommissioning, it is recommended good prac-
tice that all refrigerants are removed safely. When transfer-
ring 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 refrigerant and labelled for that refriger-
ant (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 re-
covery cylinders are evacuated and, if possible, cooled be-
fore 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 refriger-
ant supplier in the correct recovery cylinder,and the rele-
vant Waste Transfer Note arranged. Do not mix refrigerants
in recoveryunits and especially not in cylinders.
If compressors or compressor oils are to be removed, en-
sure 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 car-
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