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ENGLISH
• 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 temper-
atures, 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-
tomatically on elapse of the time required
for the electric motor to cool down. See
"quick troubleshooting guide".
Electrical connection
Version with electronic device already as-
sembled:
if the device is already assembled on the
pump, it is sufficient to insert the plug of
the electronic device into the mains sock-
et.
Version with electronic device not assem-
bled:
Electrical connections should be made
according to the diagram provided on the
inside of the terminal board cover (see
18 18
Figure 4) between the single phase pump
and electronic control device. After this,
connect the plug to the electrical mains
socket.
OPERATION
Pump priming
(30mA), pro-
before starting up.
Pump installation below the liquid lev-
el (negative suction head) Figure 1
1. Close the shutoff valve downline of the
2. Open the shutoff valve upline of the
3. loosen the filler cap to enable release
4. tighten the filler cap fully down.
5. Start up the pump and slowly open the
charge valve must be opened as soon as
the pump has been started up, to prevent
damage to the latter by an excessive in-
crease in liquid temperature.
the pump must only be started
up after it is filled with liquid.
if the pump has not been used
for a prolonged period, the filling
operation should be repeated
pump (delivery side).
pump (suction side).
of the air, then fill the pump body and
suction line completely with liquid, un-
til it overflows from the hole.
shutoff valve downline (delivery side) to
ensure bleeding of any residual air in
the pump body and accumulated pres-
sure during start-up.
the pump must never be operat-
ed with the shutoff valve on the
delivery side closed. the dis-
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