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5. Presence o
re e tinguisher
an hot or is to be conducted on
the refrigeration equipment or any
associated arts a
e tinguishing e ui ment shall be
a ailable to hand
or
re e tinguisher ad acent 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 ammable re rigerant shall
use any sources of ignition in such a
manner that it may lead to the risk of
re or e
losion
sources, including cigarette smoking,
should be e t su cientl
from the site of installation, repairing,
removing and disposal, during which
ammable re rigerant can ossibl
be released to the surrounding
space. Prior to work taking place, the
area around the e ui ment is to be
surveyed to make sure that there are
no ammable hazards or ignition ris s
o mo ing signs shall be dis la ed
7. Ventilated area. Ensure that the area
is in the open or that it is adequately
entilated be ore brea ing 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
re rigerant and re erabl e
externally into the atmosphere.
8. Checks to the refrigeration equipment.
Where electrical components are
being changed the shall be t
for the purpose and to the correct
s eci cation
t all times the
manufacturer's maintenance and
ser ice guidelines shall be ollo ed
in doubt consult the manu acturer s
technical department for assistance.
he ollo ing chec s shall be a
to installations using ammable
re rigerants
– 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
ro riate re
a e a dr
o der
ll ossible ignition
ar a a
el it
lied
– If an indirect refrigerating circuit is
being used the secondar circuit
shall be chec ed or the resence
of refrigerant;
– Marking to the equipment continues
to be isible and legible
and signs that are illegible shall be
corrected;
– Refrigeration pipe or components
are installed in a position where
the are unli el to be e
an substance hich ma corrode
refrigerant containing components,
unless the components are
constructed of materials which
are inherentl resistant to being
corroded or are suitabl
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
su
l shall be connected to the circuit
until it is satisfactorily dealt with. If the
ault cannot be corrected immediatel
but it is necessar to continue
operation, an adequate temporary
solution shall be used
reported to the owner of the equipment
so all parties are advised.
nitial sa et chec s shall include
hat ca acitors are discharged this
shall be done in a sa e manner to a oid
ossibilit o s ar ing
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 su
disconnected from the equipment
being or ed u on rior to an remo al
o sealed co ers etc
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.
ENGLISH
19
ar ings
osed to
rotected
his shall be
lies shall be
it is absolutel
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