Fral FSC25 Manual Tecnico página 34

EN
6.9 Labelling
6.10 Recovery
34 M.FSC25.3-00 Manual FRAL _ITA_UK_DE_FR_ES - 10/07/2020
f) Make sure that the cylinder is located on the scale before recovery takes place.
g) Start the recovery unit and operate it according to the manufacturer's instructions.
h) Do not overfill the cylinders (no more than 80% by volume of the refill liquid).
i) Do not exceed, even temporarily, the maximum operating pressure of the cylinder.
j) When the cylinders have been correctly filled and the process is finished, check that the cylinders
and the equipment are removed promptly from the site and that all the isolation valves of the
appliance are closed.
k) Recovered refrigerant fluids must not be loaded into another refrigeration system unless they
have been cleaned and checked.
The appliances must bear a label stating that they have been taken out of service and emptied of
the refrigerant fluid. The label must be dated and signed. Make sure that labels have been affixed
to the appliance stating that the appliance contains a flammable refrigerant.
When removing refrigerant fluids from a system, either for maintenance or for decommissioning, it
is good practice that this is done safely.
When transferring the refrigerant fluid into the cylinders, check that only cylinders suitable for the
recovery of refrigerant fluids are used. Make sure that the exact number of cylinders is available to
contain the total refill of the system. All cylinders to be used are designated for the refrigerant fluid
kept and labelled for that refrigerant fluid (i.e., cylinders for the storage of the refrigerant fluid). The
cylinders must be complete with a pressure relief valve and associated shut-off valves, in good
working order. The empty guard cylinders are withdrawn and, if possible, cooled before recovery
occurs.
The recovery apparatus must be in good operating condition with a series of instructions relating to
the apparatus being managed and must be suitable for the recovery of flammable refrigerating
fluids. A set of calibrated weighing scales must also be available. The pipes must be equipped with
connectors for disconnection that do not leak and are in good operating condition. Before using the
recovery machine, check that it is in a satisfactory condition of use, that it has had proper
maintenance and that any associated electrical components are sealed to prevent ignition in case
of leakage of refrigerant fluid. Consult the manufacturer if in doubt.
The recovered refrigerant fluid must be returned to the supplier of the refrigerant fluid in the
appropriate recovery cylinder, drawing up the relative Waste Transfer Note. Do not mix the
refrigerant fluids in the recovery units and, in particular, not in the cylinders.
If the compressors or their oils need to be removed, make sure they have been emptied to an
acceptable level to ensure that the flammable refrigerant fluid does not remain in the lubricant. The
evacuation process must be carried out before the compressor returns to the suppliers. Only electric
heating to the compressor body must be used to speed up this process. Draining the oil from a
system must be done safely.