Bimar DEU322 Notice D'instructions page 48

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 upright. 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.
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.
-Become familiar with the equipment and its operation. Isolate
system electrically. 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;