Electrolux EACM-09 HR/N6 User Manual page 13

in confined spaces shall be avoided. The
area around the workspace shall be sec-
tioned off. Ensure that the conditions within
the area have been made safe by control
of flammable material.
2. Checking for presence of refrigerant:
The area shall be checked with an appro-
priate refrigerant detector prior to and
during work, to ensure the technician is
aware of potentially toxic or flammable
atmospheres. Ensure that the leak detec-
tion equipment being used is suitable for
use with all applicable refrigerants, i.e.non-
sparking, adequately sealed or intrinsically
safe
3. Presence of fire extinguisher:
If any hot work is to be conducted on the
refrigeration equipment or any associated
parts, appropriate fire extinguishing equip-
ment shall be available to hand. Have a
dry powder or CO2 fire extinguisher adja-
cent to the charging area.
4. No ignition sources:
No person carrying out work in relation
to a refrigeration system which involves
exposing any pipe work 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 suffi-
ciently far away from the site of installation,
repairing, removing and disposal, during
which 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.
5. Ventilated Area(open the door and win-
dow):
Ensure that the area is in the open or that
it is adequately ventilated before break-
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 refrigerant and preferably
expel it externally into the atmosphere.
6. 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
Air conditioner portable
checks shall be applied to installations
using flammable refrigerants:
• The charge size is in accordance with the
room size within which the refrigerant con-
taining 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.
• 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 inher-
ently resistant to being corroded or are
suitably protected against being so cor-
roded.
7. Checks to electrical devices:
Repair and maintenance to electrical com-
ponents shall include initial safety checks
and component inspection procedures. If
a fault exists that could compromise safety,
then no electrical supply shall be con-
nected 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 pos-
sibility of sparking.
• That no live electrical components and
wiring are exposed while charging, recov-
ering or purging the system.
• Keep continuity of earthing.
Inspection of Cable
Check the cable for wear, corrosion, overvolt-
age, vibration and check if there are sharp
edges and other adverse effects in the sur-
rounding environment. During the inspection,
the impact of aging or the continuous vibra-
tion of the compressor and the fan on it
should be taken into consideration
Leakage check of R290 refrigeran
Note: Check the leakage of the refrigerant
in an environment where there is no poten-
tial ignition source. No halogen probe (or
any other detector that uses an open flame)
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