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English
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 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.
