Predator S20PLUS Gebrauchsanweisung Seite 37

a. Become familiar with the equipment and its operation.
b. Isolate system electrically.
c. Before attempting the procedure ensure that :mechanical handling equipment is avai-
lable, 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.
d. Pump down refrigerant system,if possible.
e. If a vacuum is not possible, make a manifold so that refrigerant can be removed from
various parts of the system.
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 instruc-
tions.
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.
10 LABELLING
Equipment shall be labelled stating that it has been de-commissioned and emptied of refri-
gerant.The label shall be dated and signed.
Ensure that there are labels on the equipment stating the equipment contains flammable
refrigerant.
11 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 re-
frigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are em-
ployed. 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.
The recovery equipment shall be in good working order with a set of instructions con-
cerning 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
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