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Pump in suction mode (Fig. 2)
• Make sure that all the accessories connected to
the pump pressure connection are open (taps,
valves, watering hose nozzles).
• Open the discharge valve (item 3).
• Open the suction valve (item 2).
• Open the front top cover (item 5-1).
• Unscrew the filling plug (item 5) on the pump
housing.
• Completely fill the pump.
• Screw back in the filling plug (item 5).
• Activate the pump for a few seconds using the
on/off switch. After stopping it again, unscrew
the plug and add water to finish completely fill-
ing the pump.
• If the suction head is greater than 6 m, hold the
pressure pipe in a vertical position to a height of
at least 500 mm during self-priming, in order to
prevent the water from escaping from the pump
through the pressure pipe.
8.2 Starting
CAUTION! The pump must not operate at zero
flow (discharge valve closed) for more than 10
minutes.
WARNING! Risk of burns!
Zero flow operation causes the water tempera-
ture to rise.
NOTE: To prevent formation of an air pocket, we
recommend ensuring a minimum flow equal to or
greater than about 15% of the rated flow rate of
the pump.
• Open the discharge valve.
• Switch on power to the pump (the display will
light on) and start it up by pressing the red but-
ton.
• In case of self-priming condition, if the suction
pipe has not been filled completely, starting may
take a few minutes (keep the discharge valve
open) and the pump runs at least 60 seconds to
recognize self-priming condition.
• If the water does not come out after 3 minutes,
stop the pump and repeat the filling procedure.
• Once the pump has started, close the discharge
valve completely and then reopen it to ensure
that the maximum pump curve is reached; this is
reached with the priming valve closed.
• Check that the current consumed is less than or
equal to that indicated on the motor plate.
8.3 Automatic variable speed control system
The automatic variable speed control system
works with the continuous measurement of pres-
sure, flow, temperature and electric current of
the pump.
The information obtained is used to control the
motor speed and pump operation.
It informs also the installers and the users as
operating status through the integrated display.
It performs a pre-diagnosis in case of pump
faults, defective installation and condition.
22
The following contents and values are initial-set
and program to ensure optional function of the
pump.
8.3.1 Function/explanation
Power on
Display turns on immediately and shows
"Welcome".
Start and pressure boosting
Initial set pressure 2.0 bar as guarantee pressure.
The pump runs and changes speed to keep guar-
antee pressure automatically.
Emergency stop
By pressing the red button
tion.
8.3.2 Adjustment
Automatic/Manual mode
NOTE: Automatic mode: Garantee pressure
range is adjustable from 0.1 to 6.5 bar in auto
mode.
NOTE: Manual mode: Speed level is adjustable
from level 4 to level 9 in manual mode. For deep-
er information regarding manual mode, please
contact Wilo customer service.
Commissioning
- Press the red button
- Rotate
to choose the mode:
Manual
or Auto
- Press the red button
choice.
- Rotate
to adjust the pressure value:
"0.0 bar" or
"manual speed" between 4
and 9.
- Press the red button
finish adjustment.
NOTE: If the static pressure is above the guaran-
tee pressure set from the factory, then the pump
does not start automatically. The guarantee
pressure value then has to be raised acc. to the
above process.
Back to the initial setting
- Press the red button
- Blinking
.
- Press the red button
to finish the initialisation.
Start in suction mode
Running until self-priming is done automatically
and pressure inside pump rises up to a certain
level intelligently decided by the pump itself.
in any condi-
.
to validate the
longer than 2 s to
.
for longer than 5 s
WILO SE 11/2016
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