18-GF81D1-1A-EN
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shall not be heated by an open flame or other ignition
sources to accelerate this process. When oil is drained
from a system, it shall be carried out safely.
Decommissioning
Before carrying out this procedure, it is essential that
the technician is completely 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 recovered refrigerant. It is essential that
electrical power is available before the task is
commenced.
1. Become familiar with the equipment and its
operation.
2. Isolate system electrically.
3. Before attempting the procedure, ensure that:
a. mechanical handling equipment is available, if
required, for handling refrigerant cylinders;
b. all personal protective equipment is available
and being used correctly;
c. the recovery process is supervised at all times
by a competent person;
d. 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 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 refrigerating system unless it has been
cleaned and checked.
Equipment shall be labelled stating that it has been de-
commissioned and emptied of refrigerant. The label
shall be dated and signed. For appliances containing
flammable refrigerant, ensure that there are labels on
the equipment stating the equipment contains
flammable refrigerant.
IInnffoorrmmaattiioonn oonn SSeerrvviicciinngg
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