Panasonic S-160PE1R5B Technical Data & Service Manual page 60

1
• Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance
and repair requiring the assistance of other skilled personnel shall be carried out under the
supervision of the person competent in the use of fl ammable refrigerants.
• Servicing shall be performed only as recommended by the manufacturer.
2-2. Work
• Prior to beginning work on systems containing fl ammable refrigerants, safety checks are necessary
to ensure that the risk of ignition is minimised.
For repair to the refrigerating system, " 2-3. General work area " on page 1-11-1-1-2 to
" 2-7.Ventilated area " on page 1-11-1-1-2 shall be completed prior to conducting work on the system.
• Work shall be undertaken under a controlled procedure so as to minimise the risk of a fl ammable
gas or vapour being present while the work is being performed.
2-3. 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 confi ned spaces shall be avoided.
• The area around the workspace shall be sectioned off.
• Ensure that the conditions within the area have been made safe by control of fl ammable material.
2-4. 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 toxic or fl ammable atmospheres.
• Ensure that the leak detection equipment being used is suitable for use with all applicable
refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
2-5. Presence of fi re extinguisher
• If any hot work is to be conducted on the refrigeration equipment or any associated parts,
appropriate fi re extinguishing equipment shall be available to hand.
• Have a dry powder or CO
2-6. 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 fi re 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 fl ammable hazards or ignition risks.
• "No Smoking" signs shall be displayed.
2-7.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.
fi re extinguisher adjacent to the charging area.
2
1-11-1-1-2