Unical HP_OWER ONE 70R - Page 32

31
Measurement
Completed
Notes
refrigerant fluid storage). The cylinders must be complete with a pressure
relief valve and associated shut
-off valves, in good working order. The
cylinders of
Empty cases are co
llected and, if possible, cooled before recovery takes
place.
The recovery apparatus must be in good operating condition with a series
of i
nstructions relating to the apparatus that is being managed and must
be suitable for the recovery of fluids
flammable
refrigerants. A set of calibrated weighing scales must also be
available. The pipes must be equipped with
connections for disconnection that do not leak and are in good operating
condition. B
efore 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
c
ase of leakage of refrigerant fluid. Consult the manufacturer if in doubt.
The recovered refrigerant fluid must be re
turned to the supplier of the
refrigerant fluid in the appropriate recovery cylinder, drawing up the
relative Waste Transfer Note. Do not m
ix 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 r
emain in the
lubricant. The evacuation process must b
e carried out before the
compressor returns to the suppliers. On
ly electric heating to the
compressor body must be used to speed up this process. The drainage of
oil from a system must be performed safely.