Bimar DEU315 Notice D'instructions page 41

Servicing shall only be performed as recommended by the
equipment manufacturer. Maintenance and repair requiring
the assistance of other skilled personnel shall be carried out
under the supervision of the person competent in the use of
flammable refrigerants.
Transport of equipment containing flammable refrigerants.
See transport regulations.
Marking of equipment using signs.
See local regulations.
Disposal of equipment using flammable refrigerant.
See national regulations.
Storage of equipment/appliances.
The storage of equipment should be in accordance with the
manufacturer's instructions.
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.
Information on servicing
Checks to the area. Prior to beginning work on systems
containing flammable refrigerants, safety checks are necessary
to ensure that the risk of ignition is minimised.
For repair to the refrigerating system, the following precautions
shall be complied with prior to conducting work on the system.
Work procedure. Work shall be undertaken under a controlled
procedure so as to minimise the risk of a flammable gas or
vapour being present while the work is being performed.