Livoo DOM415 Manuel D'utilisation page 27

Safety precautions
WARNING
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 assessment specification.
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.
Warning
1. Servicing
1) 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.
2) 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.
3) 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 material.
4) 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 refrigerants, i.e. non-
sparking, adequately sealed or intrinsically
safe.
5) Presence of fire extinguisher
If any hot work is to be conducted on the
refrigeration equipment or any associated
parts, appropriate
equipment shall be available to hand. Have a
EN EN
fire extinguishing
dry powder or CO2 fire extinguisher adjacent
to the charging area.
6) 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 refrigerant
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.
7) 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.
A degree of ventilation shall continue during
the period that the work is carried out. The
ventilation should
released refrigerant and preferably expel it
externally into the atmosphere.
8) Checks to the refrigeration equipment
Where electrical components are being
changed, they shall be fit for the purpose
and to the correct specification. At all times
the manufacturer's maintenance and service
guidelines shall be followed. If in doubt consult
the manufacturer's technical department for
assistance.
The following checks shall be applied to
safely disperse any
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