Publicité
Les langues disponibles
Les langues disponibles
b) Isolate system electrically.
c)
Before attempting the procedure ensure that :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.
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
instructions.
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.
LABELLING
• Equipment shall be labelled 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.
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 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.
www.newair.com
EN
23
Publicité
