Panasonic CS-Z20VKEW Operating Instructions Manual page 10

Safety precautions
2. Servicing
2-1. Service personnel
• The system is inspected, regularly
supervised and maintained by
a trained and certifi ed service
personnel who is employed by the
person user or party responsible.
• Ensure the actual refrigerant charge
is in accordance with the room size
within which the refrigerant containing
parts are installed.
• Ensure refrigerant charge not to leak.
• Any qualifi ed person who is involved
with working on or breaking into
a refrigerant circuit should hold
a current valid certifi cate from an
industry-accredited assessment
authority, which authorizes their
competence to handle refrigerants
safely in accordance with an industry
recognised assessment specifi cation.
• 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.
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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, the precautions
in #2-2 to #2-8 must be followed
before conducting work on the
system.
• Work shall be undertaken under
a controlled procedure so as to
minimize the risk of a fl ammable gas
or vapour being present while the
work is being performed.
• All maintenance staff and others
working in the local area shall be
instructed and supervised on the
nature of work being carried out.
• Avoid working in confi ned spaces.
Always ensure away from source, at
least 2 meter of safety distance, or
zoning of free space area of at least 2
meter in radius.
• Wear appropriate protective
equipment, including respiratory
protection, as conditions warrant.
• Keep all sources of ignition and hot
metal surfaces away.