• 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
Before carrying out this procedure, it is essential that the technician
be 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 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.
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