EN
familiar with the equipment and all its detail. It is recommended good practice that all
refrigerants are recovered safely. Prior to the task being carried out, an oil and
refrigerant sample shall be taken in case analysis is required prior to re-use of
reclaimed refrigerant. lt is essential that electrical power is available before the task is
commenced.
Become familiar with the equipment and its operation.
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Isolate system electrically.
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Before attempting the procedure ensure that:
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- mechanical handling equipment is available, if required, for handling refrigerant
cylinders.
-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.
Pump down refrigerant system, if possible.
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If a vacuum is not possible, make a manifold so that refrigerant can be removed from
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various parts of the system.
Make sure that cylinder is situated on the scales before recovery takes place.
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Start the recovery machine and operate in accordance with manufacturer's
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instructions.
Do not overfill cylinders.(No more than 80 % volume liquid charge).
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Do not exceed the maximum working pressure of the cylinder, even temporarily.
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When the cylinders have been filled correctly and the process completed, make sure
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that the cylinders and the equipment are removed from site promptly and all isolation
valves on the equipment are closed off.
Recovered refrigerant shall not be charged into another refrigeration system unless it
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has been cleaned and checked.
Equipment shall be labeled stating that it has been decommissioned and emptied of
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refrigerant. The label shall be dated and signed.
Ensure that there are labels on the equipment stating the equipment contains
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flammable refrigerant. 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
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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 labeled 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.
The recovery equipment shall be in good working order with a set of instructions
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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
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