Product Description; Design Of Pump And Motor; Application/Use; Intended Use - Wilo Extract FIRST Series Installation And Operating Instructions Manual

2.6 Product description (Fig. 2 und 3)
1. Supply cable
2. Shock-proof plug
3. Valve
4. Safety rope
5. Suction strainer
6. Floating suction fi lter

2.7 Design of pump and motor

The submersible pump is based on multi-stage and centrifugal design.
A mechanical seal protects the motor against the hydraulic part of the pump.
The SE type model are fi tted with a lateral suction support to allow the
connection of fl oating or fi xed suction fi lters.
The other models contain a suction strainer on the pump base.
The motor is equipped with an overheating protection which automatically
switches the motor off if it overheats. After suffi cient cooling, unplug the
mains plug and plug it in again - the pump restarts.
The pump reacts to a lowering of the water level and switches on and off
automatically.
The integrated electronics protect the pump from running dry.
If there is no withdrawal within 24 hours, the pump switches on automatically
for 2-3 minutes. This is to prevent the pump from blocking.

3 Application/use

CAUTION! Possible damage of the pump.This pumps are intended for use
with water only.

3.1 Intended use

Series Extract FIRST submersible pumps are suitable for the application areas
following:
• For not very deep wells, tank, cistern.
• Pumping and water distribution for:
• agricultural use (watering, irrigation),
• Pumped fl uids: non polluted, potable, cold, rain waters.

3.2 Improper use

The pump is not suitable for continuous use, e.g. for the operation of foun-
tains. (Continuous operation > 2 hrs reduces the lifetime of the pump).
The pump must not be used for emptying swimming pools.
The pump must not be used in drinking water applications.

4 Transport and storage

When receiving the material, check immediately that there has been no dama-
ge during the transport. If any defect has been stated, take the required steps
with the carrier within the allowed time.
CAUTION! If the delivered material is to be installed later on, store it in a
dry place and protect it from impacts and any outside influences (humidi-
ty, frost etc...).
Handle the pump carefully so as not to damage the unit prior to installa-
tion.
Installation and operating instructions Wilo-Extract FIRST ...
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