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When removing refrigerant from
a system, either for servicing or
decommissioning, it is recommended
good practice that all refrigerants are
removed safely.
When transferring refrigerant into
cylinders, ensure that only appropriate
refrigerant recovery cylinders are
employed. Ensure that the correct
number of cylinders for holding the total
system charge is available. All cylinders
to be used are designated for the
recovered refrigerant and labelled for that
refrigerant (i.e. special cylinders for the
recovery of refrigerant). Cylinders shall
be complete with pressure relief valve
and associated shut-off valves in good
working order. Empty recovery cylinders
are evacuated and, if possible, cooled
before recovery occurs.
The recovery equipment shall be in good
working order with a set of instructions
concerning the equipment that is at hand
and shall be suitable for the recovery
of flammable refrigerants. In addition,
a set of calibrated weighing scales shall
be available and in good working order.
Hoses shall be complete with leak-
free disconnect couplings and in good
condition. Before using the recovery
machine, check that it is in satisfactory
working order, has been properly
maintained and that any associated
electrical components are sealed
to prevent ignition in the event of a
refrigerant release. Consult manufacturer
if in doubt.
The recovered refrigerant shall be
returned to the refrigerant supplier in
the correct recovery cylinder, and the
relevant Waste Transfer Note arranged.
Do not mix refrigerants in recovery units
and especially not in cylinders.
If compressors or compressor oils are to
be removed, ensure that they have been
evacuated to an acceptable level to make
certain that flammable refrigerant does
not remain within the lubricant. The
evacuation process shall be carried out
prior to returning the compressor to the
suppliers. Only electric heating to the
compressor body shall be employed
to accelerate this process. When oil is
drained from a system, it shall be carried
out safely.
Recovery
WARNING!
•
Do not use means to accelerate the
defrosting process or to clean, other
than those recommended by the
manufacturer.
• The appliance shall be stored in a
room without continuously operating,
ignition sources (for example: open
flames, an operating gas appliance
or an operating electric heater).
• Do not pierce or burn.
•
Be aware that the refrigerants may not
contain an odour.
• Appliance should be installed, operated
and stored in a room with a floor area
larger than 12 m
2
.
• The appliance shall be stored so as
to prevent mechanical damage from
occurring a warning that the appliance
shall be stored in a well-ventilated
area where the room size corresponds
to the room area as specified for
operation.
•
Any person who is involved with
working on or breaking into a
refrigerant circuit should hold a current
valid certificate from an industry-
accredited assessment authority, which
authorises their competence to handle
refrigerants safely in accordance with
an industry recognised assessment
specification.
• 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 flammable
refrigerants.
Summary of Contents for WP71-265WT
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