Product Description; Intended Use And Fields Of Application - Wilo Actun FIRST SPU 4 Instrucciones De Instalación Y Funcionamiento

PRODUCT DESCRIPTION

Note:
Elastomer parts and coating are subject to natural
brittleness. If the product is to be put in storage
for longer than 6 months, we recommend check-
ing these parts and replacing them as necessary.
Consult the manufacturer for further details.
NOTICE:
Prior to commissioning, the fill levels (oil,
motor, etc.) should be checked and topped up,
as necessary.
3.4 Return delivery
Pumps that are returned to the factory must be
properly packaged. This means that impurities
have been removed from the pump and that it has
been decontaminated if used with fluids that are
hazardous to health.
For shipping, the parts must be packed in tear-
proof plastic bags of sufficient size in such a
manner that they are tightly sealed and leak-
proof. Furthermore, the packaging must protect
the pump from damage during transportation.
If you have any questions, please contact the
manufacturer.
4 Product description
4.1 Intended use and fields of application
DANGER due to electrical hazard!
When using the pump in swimming pools or
other basins that can be entered, there is a
risk of electrocution. Note:
• Use is strictly forbidden if there are people in
the basin!
• If there are no people in the basin, protec-
tive measures must be taken according to
DIN EN 62638 (or the appropriate national
regulations).
DANGER due to explosive fluids!
It is strictly prohibited to pump explosive
fluids (gasoline, kerosene etc.). The pumps are
not designed for these fluids!
The submersible pumps are suitable for:
• Water supply from boreholes, wells and rainwater
storage tanks
• Domestic water supply, sprinkling and irrigation
• Pumping of water without long-fibre and abra-
sive constituents
Submersible pumps must not be used for
pumping:
• Wastewater
• Sewage/faeces
• Untreated sewage
Intended use also includes compliance with this
manual. Any other use is regarded as non-compli-
ant with the intended use.
Installation and operating instructions Wilo-Actun FIRST SPU 4
4.1.1 Pumping drinking water
When used to pump drinking water, the local
guidelines/laws/regulations must be checked to
establish whether the pump is suitable for this
application. The pumps do not comply with the specifications
of TrinkwV and are not approved in accordance
with ACS or local guidelines e.g. KTW and elasto-
mer guidelines.
4.2 Structure
The Wilo-Actun FIRST SPU 4.. is a submersible
pump that is immersed in a stationary installation,
either vertically or horizontally.
Fig. 1: Description
1 Suction piece
2 Motor housing
4.2.1 Hydraulics
Multistage hydraulics with radial or semi-axial
impeller in sectional construction. The hydraulics
housing and the pump shaft are made of stainless
steel and the impellers are made of Noryl. The
connection on the pressure side is designed as
a vertical female thread and with an integrated
non-return valve.
The pump is not self-priming, i.e. the fluid must
flow in either automatically or with supply
pressure and a minimum coverage must be
ensured at all times.
4.2.2 Motor
The motors used are oil-filled alternating current
or three-phase current motors for direct starting.
The motor housing is made of stainless steel. The
motors have a 4" Nema connection.
For a more detailed description, see the Installa-
tion and operating instructions of the motor.
4.2.3 Seal
The sealing between the motor and hydraulics is
achieved by a mechanical seal.
3 Hydraulics housing
4 Pressure connection
English
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