Oceanic OCEACLIM700W1 Guide D'utilisation page 26

SAFETY INSTRUCTIONS
the refrigerating system the following precautions shall be complied with prior to
conducting work on the system.
6-2 Work procedure
Work shall be undertaken under a controlled procedure so as to minimize the risk
of flammable gas or vapour being present while the work is being performed.
6-3 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 confied spaces shall be avoided.
6-4 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.
6-5 Presence of fire extinguisher
If any hot work is to be conducted on the refrigerating equipment or any
associated parts appropriate fire extinguishing equipment shall be available to
hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
6-6 No ignition sources
No person carrying out work in relation to a refrigerating 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.
6-7 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 safely
disperse any released refrigerant and preferably expel it externally into the
atmosphere.
6-8 Checks to the refrigerating 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 installations
using flammable refrigerants:
EN-4