Panasonic WH-ADC0509L3E5 Operating Instructions Manual page 14

Safety precautions
• Ensure that the outlet for the vacuum
pump is not close to any potential
ignition sources and there is
ventilation available.
9. Charging procedures
• In addition to conventional
charging procedures, the following
requirements shall be followed.
-Ensure that contamination of
different refrigerants does not
occur when using charging
equipment.
-Hoses or lines shall be as short as
possible to minimize the amount of
refrigerant contained in them.
-Cylinders shall be kept in an
appropriate position according to
the instructions.
-Ensure that the refrigerating
system is earthed prior to charging
the system with refrigerant.
-Label the system when charging is
complete (if not already).
-Extreme care shall be taken not to
over fi ll the refrigerating system.
• Prior to recharging the system it
shall be pressure tested with OFN
(refer to #8).
• The system shall be leak tested on
completion of charging but prior to
commissioning.
• A follow up leak test shall be carried
out prior to leaving the site.
• Electrostatic charge may accumulate
and create a hazardous condition
when charging and discharging the
refrigerant. To avoid fi re or explosion,
dissipate static electricity during
transfer by grounding and bonding
containers and equipment before
charging/discharging.
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10. Decommissioning
• Before carrying out this procedure,
it is essential that the technician
is completely familiar with the
equipment and all its details.
• It is recommended good practice
that all refrigerants are recovered
safely.
• Re-use of recovered refrigerant is
prohibited.
• It is essential that electrical power
is available before the task is
commenced.
a) Become familiar with the
equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure
ensure that:
• mechanical handling equipment is
available, if required, for handling
refrigerant cylinders;
• all personal protective equipment
and leak detectors are available
and being used correctly;
• the recovery process is
supervised at all times by a
competent person;
• recovery equipment and cylinders
conform to the appropriate
standards.
d) Make sure that cylinder is situated
on the scales before recovery
takes place.
e) Start the recovery machine and
operate in accordance with
instructions.
f) Do not over fi ll cylinders. (No
more than 80 % volume liquid
charge).
g) Do not exceed the maximum
working pressure of the cylinder,
even temporarily.