15. Any person who is involved with working on or breaking into a refrigerant circuit should hold
a current valid certificate from an industry-accredited assessment authority, which authorises
their competence to handle refrigerants safely in accordance with an industry recognised as-
sessment specification.
16. 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.
17. TRANSPORT OF EQUIPMENT CONTAINING FLAMMABLE REFRIGERANTS
See transport regulations.
18. MARKING OF EQUIPMENT USING SIGNS
See local regulations.
19. DISPOSAL OF EQUIPMENT USING FLAMMABLE REFRIGERANTS
See national regulations.
20. STORAGE OF EQUIPMENT/APPLIANCES
The storage of equipment should be in accordance with the manufacturer's instructions.
21. 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.
22. INFORMATION ON SERVICING
a) 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.
b) Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk of a flamma-
ble gas or vapour being present while the work is being performed.
c) General work area
All maintenance staff and others working in the local area shall be instructed on the nature of
work being carried out.
Work in confined spaces shall be avoided.
The area around the workspace shall be sectioned off.
Ensure that the conditions within the area have been made safe by control of flammable mate-
rial.
d) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to
ensure the technician is aware of potentially flammable atmospheres.
Ensure that the leak detection equipment being used is suitable for use with flammable refrig-
erants, i.e. non-sparking, adequately sealed or intrinsically safe.
e) Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated parts, ap-
propriate fire extinguishing equipment shall be available at hand.
Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
f) No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any
pipe work that contains or has contained flammable refrigerant shall use any sources of ignition
in such a manner that it may lead to the risk of fire or explosion.
All possible ignition sources, including cigarette smoking, should be kept sufficiently far away
from the site of installation, repairing, removing and disposal, during which flammable refriger-
ant can possibly be released to the surrounding space.
Prior to work taking place, the area around the equipment is to be surveyed to make sure that
there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.
g) Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking into the
system or conducting any hot work.
EN - 7
DOLCECLIMA