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A12C
– Ensure that the refrigeration system is earthed prior to charging
the system with refrigerant.
– Label the system when charging is complete (if not already).
– Extreme care shall be taken not to overfill the refrigeration system.
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.
14. Decommissioning（Annex DD.11）
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:
•
Mechanical handling equipment is available, if required, for han
dling 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.
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