CyberOne EC DX IOM Manual
Follow these decommissioning guidelines:
a.
Become familiar with the equipment and its opera-
tion.
b.
Isolate the system electrically.
c.
Before attempting the procedure ensure that:
Mechanical handling equipment is avail-
able, if required, for handling refrigerant
cylinders
All required personal protective equipment
is available and used correctly
The recovery process is supervised at all
times by competent personnel
Recovery equipment and cylinders con-
form to the appropriate standards
d.
Pump down the 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.
Place the cylinder receiving the refrigerant on the
scale before starting recovery.
g.
Start the recovery machine and operate in accor-
dance with manufacturer’s instructions.
h.
Do not overfill cylinders. (They should contain 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 must not be charged into an-
other refrigeration system unless it has been cleaned
and checked.
3.2.1
Recovering Refrigerant
When removing refrigerant from a system, either for servicing
or decommissioning, best practice is to remove all refrigerants
safely. Use the following recommended guidelines:
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 are available and that
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 must
be complete with pressure relief valve and associated
shut-off valves in good working order. Empty recovery
cylinders must be evacuated and, if possible, cooled
before recovery occurs.
Recovery equipment must be in good working
order with a set of instructions concerning the
equipment at hand, and the equipment must be
suitable for recovering flammable refrigerants. In
addition, a set of calibrated weighing scales must
be available and in good working order. Hoses
must 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.
Recovered refrigerant must 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 they have been evacuated to an
acceptable level to make certain flammable
refrigerant does not remain within the lubricant.
The evacuation process must be carried out prior
to returning the compressor to the suppliers. Only
electric heating of the compressor body may be
employed to accelerate this process. When oil is
drained from a system, it must be carried out
safely.
3.2.2
Labeling the Decommissioned Unit
Equipment must be labelled stating that it has been de-
commissioned and emptied of refrigerant. The label
must be dated and signed. Ensure that there are labels
on the equipment stating the equipment contains
flammable refrigerant.
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