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35
EN
• All personal protective equipment is available and being used
correctly;
• The recovery process is supervised at all times by a competent
person;
• Recovery equipment and cylinders conform to the appropriate
standards.
4. Pump down refrigerant system, if possible.
5. If a vacuum is not possible, make a manifold so that refrigerant can
be removed from various parts of the system.
6. Make sure that cylinder is situated on the scales before recovery
takes place.
7. Start the recovery machine and operate in accordance with
manufacturer’s instructions.
8. Do not overfill cylinders. (No more than 80% volume liquid charge).
9. Do not exceed the maximum working pressure of the cylinder, even
temporarily.
10. 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.
11. Recovered refrigerant shall not be charged into another refrigeration
system unless it has been cleaned and checked.
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.
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 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.
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