Electrolux WP71-265WT Manuel D'utilisation page 19

5. Presence of fire extinguisher. If
any hot work is to be conducted on
the refrigeration 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. 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 safely disperse any 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 installations using flammable
refrigerants:
– The charge size is in accordance
with the room size within which
the refrigerant containing parts
are installed;
– The ventilation machinery and
outlets are operating adequately
and are not obstructed;
– If an indirect refrigerating circuit is
being used, the secondary circuit
shall be checked for the presence
of refrigerant;
– Marking to the equipment continues
to be visible and legible. Markings
and signs that are illegible shall be
corrected;
– Refrigeration pipe or components
are installed in a position where
theyare unlikely to be exposed to
any substance which may corrode
refrigerant containing components,
unless the components are
constructed of materials which
are inherently resistant to being
corroded or are suitably protected
against being so corroded.
9. Checks to electrical devices. Repair
and maintenance to electrical
components shall include initial safety
checks and component inspection
procedures. If a fault exists that could
compromise safety, then no electrical
supply shall be connected to the circuit
until it is satisfactorily dealt with. If the
fault cannot be corrected immediately
but it is necessary to continue
operation, an adequate temporary
solution shall be used. This shall be
reported to the owner of the equipment
so all parties are advised.
Initial safety checks shall include:
• That capacitors are discharged: this
shall be done in a safe manner to avoid
possibility of sparking;
• That there no live electrical
components and wiring are exposed
while charging, recovering or purging
the system;
• That there is continuity of earth
bonding.
Repairs to sealed components
1. During repairs to sealed components,
all electrical supplies shall be
disconnected from the equipment
being worked upon prior to any removal
of sealed covers, etc. If it is absolutely
necessary to have an electrical supply
to equipment during servicing, then
a permanently operating form of leak
detection shall be located at the most
critical point to warn of a potentially
hazardous situation.
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