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Product description
10
WILO SE 2020-05
ƒ
Drinking water
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with intended use.
4
Product description
4.1
Design
Ready for connection and fully submersible single-pump lifting unit for pumping
sewage containing faeces.
1
2
3
4
5
6
7
8
Fig. 1:
Overview
1
Collection reservoir
2
Inspection opening of collection reservoir
3
Ventilation connection
4
Pressure connection
5
Inspection opening of swing check valve
6
Gripping lug
7
Emergency drain connection
8
Motor
Gas- and watertight collection reservoir with collecting space that slopes at an angle
and inspection opening with transparent cover. The inlets are freely configurable, level
measurement is performed with an analogue output signal 4…20 mA. Pressure connec-
tion with attached non-return valve with inspection opening.
Drive via a surface-cooling or self-cooling motor with thermal motor monitoring.
Pre-installed switchgear for automatic operation:
Wilo-Control MS-L
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Collective fault signal with potential-free contact
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Integrated and mains-independent alarm
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Adjustable follow-up time
Wilo-Control EC-L
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Operation via display and icon-based, alphanumeric menu
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Collective fault signal with potential-free contact
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Individual fault signal with potential-free contact
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ModBus interface
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Integrated and mains-independent alarm
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Adjustable follow-up time
4.2
Materials
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Motor housing: 1.4404 (AISI 316L)
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Hydraulics: PP-GF30
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Impeller: PP-GF30 or 1.4408 (AISI 316)
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Tank: PE
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Non-return valve: PPS
4.3
Monitoring devices
Monitoring of motor winding
The motor is equipped with thermal motor monitoring with bimetallic strips:
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Single-phase AC motor: The motor monitoring is self-switching. The motor is
switched off if it overheats. The motor is automatically switched on again once it has
cooled down.
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Three-phase AC motor: The motor monitoring is displayed and reset via the connec-
ted switchgear.
High water alarm with collective fault signal
When the high water level is reached, there is an audible and visual alarm signal. Forced
switch-on of the pump takes place. Furthermore, the collective fault signalling contact
is activated. An external alarm (horn, SMS via SmartHome connection) can be triggered
via the potential-free contact.
If the water drops below the high water level, the pump is deactivated once the follow-
up time has elapsed. The alarm signal is acknowledged automatically.
