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Warnings (for using R290 refrigerant only)
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.
15. Labelling
Equipment shall be labelled stating that it has been de-
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.
16. 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 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
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