Bosch Climate 5000 SCI Installation Manual page 26

Information on Servicing
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 qualified
personnel 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.
If an 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:
• 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 qualified
personnel ;
• 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. Ensure 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, ensure 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
• When removing refrigerant from a system, either for service or
decommissioning, it is recommended good practice that all refriger-
ants are removed safely.
• When tranferring refrigerant into cylinders, ensure that only appro-
priate 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.
• 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 concerning the equipment that is at hand and shall be
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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 prevent
ignition in the event of a refrigerant release. Consult manufacturer
if in doubt.
• The recovered refrigerant shall be returned to the refrigerant suppli-
er in the correct recovery cylinder, and the relevant waste transfer
note must be arranged. Do not mix refrigerants in recovery units and
especially not in cylinders.
• If compressors or compressor oils are to be removed, ensure that
they have been evacuated to an acceptable level to make certain
that flammable refrigerant does not remain within the lubricant.
The evacuation process shall be carried out prior to returning the
compressor to the suppliers. Only electric heating of the compres-
sor body shall be employed to accelerate this process. When oil is
drained from a system, it shall be carried out safely.
20. Transportation, marking and storage of units
1. Transport of equipment containing flammable refrigerants
Compliance with the transport regulations
2. Marking of equipment using signs
Compliance with local regulations
3. Disposal of equipment using flammable refrigerants
Compliance with national regulations
4. Storage of equipment/appliances
The storage of equipment should be in accordance with the
manufacturer's instructions.
5. Storage of packed (unsold) equipment
Storage package protection should be constructed such that
mechanical damage to the equipment inside the package will not
cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be
stored together will be determined by local regulations.
Climate 5000 SCI – 6720887405 (2018/04)