SAFETY INSTRUCTIONS
Before attempting the procedure ensure that:
c.
Mechanical handling equipment is available, if required, for handling refrigerant
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cylinders;
All personal protective equipment is available and being used correctly;
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The recovery process is supervised at all times by a competent person;
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Recovery equipment and cylinders conform to the appropriate standards.
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Pump down refrigerant system, if possible.
d.
If a vacuum is not possible, make a manifold so that refrigerant can be removed
e.
from various parts of the system.
Make sure that cylinder is situated on the scales before recovery takes place.
f.
Start the recovery machine and operate in accordance with instructions.
g.
Do not overfill cylinders. (No more than 80 % volume liquid charge).
h.
Do not exceed the maximum working pressure of the cylinder, even temporarily.
i.
When the cylinders have been filled correctly and the process completed, make
j.
sure 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 refrigerating system
k.
unless it has been cleaned and checked.
15. Labeling
Equipment shall be labeled 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 labeled for that refrigerant (i.e. special cylinders
for the recovery of refrigerant). Cylinders shall be complete with pressure relief
valve and associated shutoff 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
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 refrigerant supplier in the correct recovery cylinder, and the
relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units
and especially not in cylinders. If compressors or compressor oils are to be removed,
ensure that they have been evacuated to an acceptable level to make certain that
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