15
SAFETY INSTRUCTIONS
ENGLISH
Charging procedures
In addition to conventional charging procedures, the following
requirements shall be followed.
- Ensure that contamination of different refrigerants does not occur
when using charging equipment. Hoses or lines shall be as short
as possible to minimise the amount of refrigerant contained in
them.
- Cylinders shall be kept in an appropriate position according to the
instruction.
- Ensure that the refrigerating 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 refrigerating
system.
Prior to recharging the system, it shall be pressure tested with the
appropriate purging gas. 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.
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).
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