INVENTOR P8MVI32-09WiFi, Service Manual

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Prior to recharging the system it shall be
pressure tested with OFN. The system
shall be
leak tested on completion of charging but
prior to commissioning. A follow up leak
test shall be carried out prior to leaving the
site.
17. 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 reclaimed refrigerant. It is essential that
electrical power is available before the task
is commenced.
a) Become familiar with the equipment and
its operation.
b) Isolate system electrically.
c) Before attempting the procedure ensure
that:
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mechanical handling equipment is
available, if required, for handling
refrigerant cylinders;
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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.
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.
18. 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.
19. Recovery
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When removing refrigerant from a
system, either for servicing or
decommissioning, it is
recommended good practice that all
refrigerants are removed safely.
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When transferring refrigerant into
cylinders, ensure that only appropriate
refrigerant
recovery cylinders are employed. Ensure
that the correct numbers 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.
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Empty recovery cylinders are
evacuated and, if possible, cooled before
recovery occurs.