Wilo DrainLift XL Notice De Montage Et De Mise En Service page 39

Fig. 13: Filling level curve
1[ l ]
400,0
380,0
360,0
4
340,0
320,0
300,0
280,0
260,0
240,0
220,0
200,0
180,0
160,0
140,0
120,0
100,0
80,0
60,0
40,0
20,0
0,0
80
0 50 100
1 Tank fill volume [l]
2 Water level above installation level [mm]
Installation and operating instructions Wilo-DrainLift XL
8.2.1 Switchgear settings
• During the initial commissioning it is necessary to set the unit parameters on the switch-
gear, see also the installation and operating instructions for the switchgear.
• Compare the default value of the motor current with the specifications on the name plate
of the motor and, if necessary, correct the settings.
• Set the maximum value of the sensor to 1.0 mwc in the menu item "20 mA ƒ level".
8.2.2 Setting the switching level
The level for switching the pumps and the alarm can be selected as required in steps
of 1 cm.
Recommended settings:
• Base load ON: 550 mm
• Base load OFF: 80 mm
• Peak load ON: 650 mm
• Peak load OFF: 400 mm
• High water (alarm): 750 mm
If you wish to use different switching points, you must comply with the supplied filling level
curve (Fig. 13). The filling level display on the switchgear directly corresponds to the level
in the tank in this case.
Always note the following points, in particular in case of deviations from the recommended
settings:
• The filling level probe must be in contact with the base of the tank.
• According to EN 12056-4, the switching volume should be sufficient to allow the volume
of the discharge piping to be replaced during each pump cycle.
• The level specifications in the technical data table should be observed (minimum values for
activation and deactivation level).
• If the pump activation level is set higher than the inlet height, there will be a risk of back-
flow in the connected objects.
• Do not exceed 80 mm for the base load OFF switching point. If additional pumping out is
required, this must only be done by setting the follow-up time accordingly (see 8.2.3).
• The base load OFF and peak load OFF switching points should be at least 50 mm apart.
150 200 250 300 350
3
400 450 500 550 600 650
3 Filling level curve
4 Minimum level base-load pump OFF
700 750 800 850 900
2 [mm]
min
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