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center of the suction port and the check
valve) or H4 (between the center of the
suction port and first point of use) in the
table1 are observed to guarantee suction
height H2 (figure 3).
electRIcAl
coNNectIoN
WARNINg:
• ensure that the rated voltage and
frequency correspond to those of the
specifications of the mains power
available.
• the electrical connection must be
made according to current local
standards.
• Before any intervention on the pump,
disconnect the electrical mains. en-
sure that the electrical power supply
cannot be restored inadvertently.
• the electrical cables must be protect-
ed, in particular from high tempera-
tures, vibrations and impact, which
could cause mechanical or chemical
damage.
• the electrical power line must be
fitted with a short circuit protection
device, and a residual current device
RcD with high sensitivity
tected by means of a slow-acting fuse
or thermal magnetic cut-out.
• the electric power line must be fitted
with an external main switch with a
contact opening gap compliant with
current local standards.
Single phase motors
the single phase motors are protected
against temperature and current overload
by means of thermal cutout devices in the
winding. the motor protection is reset au-
20 20
tomatically on elapse of the time required
for the electric motor to cool down. See
"quick troubleshooting guide".
electrical connection
the system is pre-assembled on the
pump and therefore it is sufficient to in-
sert the plug in the mains socket.
electrical connections should be made
according to the diagram provided on the
inside of the terminal board cover of the
pump and pressure switch (see figure 4)
oPeRAtIoN
check of expansion tank with mem-
brane
tank with membrane. the maximum ad-
missible operating pressure is specified
on the data plate of the tank and must
never be exceeded. During the filling pro-
cess, check the gas inlet pressure.
to ensure optimal operation of the au-
toclave, the gas inlet pressure in the ex-
pansion tank with membrane must be
proportionate to the intervention pres-
sure. the expansion tank has been pre-
charged in the factory with air and set at
a specific inlet pressure (see data plate of
(30ma), pro-
the expansion tank).
Before start-up and after changing the
settings of the pressure switch, it is re-
commended to check the gas pressure
again. Discharge the pressure of the ex-
pansion tank with membrane on the wa-
ter side and use a pressure measurement
device to read the gas pressure on the gas
filling valve of the tank with membrane.
Risk of injury! an excessively
high gas inlet pressure can
cause damage to the expansion
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