INVENTOR P8MVI32-09WiFi, Service Manual

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leak detection equipment being used is
suitable for use with flammable
refrigerants, i.e. no
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 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:
l
the charge size is in accordance with
the room size within which the refrigerant
containing parts are installed;
l
the ventilation machinery and outlets
are operating adequately and are not
obstructed;
l
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.
l
markings and signs that are illegible
shall be corrected;
l
refrigeration pipe or components are
installed in a position where they are
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