English
12
WILO AG 01/2008
3 Transport and interim storage
As soon as the product arrives:
• Check it for damage in transit.
• In the event of damage, initiate the necessary pro-
cedure with the forwarding agent within the time
indicated.
CAUTION! Risk of damage!
The product may suffer damage if it is not
transported and stored correctly.
• The pump may only be suspended / supported by
the strap provided for this purpose. Never by
the cabl
e.
• The pump must be protected against damp,
frost, heat, direct sunlight and mechanical dam-
age during transport and storage.
• The pump pressure port must be firmly closed
during storage to prevent fouling.
• Make sure that the freezing point of the engine
fill is at -8°C during storage.
4 Intended use
The submersible pumps Wilo-Sub TWU4 Plug &
Pump are suitable for pumping clean or slightly
contaminated water without long fibre and abra-
sive constituents.
They are used
• for boreholes and cisterns,
• for pumping and distributing secondary hot water for:
• domestic use
• agriculture (irrigation, sprinkling)
NOTE: Local regulations must be observed for the
application concerned.
The pumps are only installed submerged and can
be set up horizontally or vertically.
CAUTION! Risk of damage! Pumping inadmissi-
ble fluids can damage the product.
The pumps are not suitable for water with coarse
contamination such as fibres or combustible flu-
ids or for use in potentially explosive areas.
Correct use of the product also means following
these instructions.
Any other use is not regarded as correct usage.
5 Product information
5.1 Type key
5.3 Scope of del
i
very
5.3.1 Plug & Pump (Sub-Economy 1) variant
• 4" submersible pump TWU 4-0405EM or TWU 4-
0410EM, AC type EM (1~230V) with 30 m con-
necting cable
• Stainless steel pump housing, pump stages in
plastic (Noryl)
• Wilo-Fluid control, automatic flow and pressure
monitor with integrated dry-running protection
system
• 30 mm polypropylene securing cable with stain-
less steel clips
• Installation parts: 2x clamping ring screw connec-
tions, reduction piece R 1¼“-R1, 8x cable posts,
installation and operating instructions
5.3.2 Single pump type (Sub-Economy 2)
• 4" submersible pump TWU4-0405EM, TWU4-
0410EM or TWU4-0415EM, AC version EM
(1~230V) with 30 m connecting cable
• Stainless steel pump housing, pump stages in
plastic (Noryl)
• Wilo pressure circuit 0-10 bar incl. 18 l membrane
expansion tank, pressure gauge, check valve and
pressure switch
• 30 mm polypropylene securing cable with stain-
less steel clips
Example:
WILO-Sub TWU4-0405 P&P/FC
TWU
Submersible pump
4
Minimum diameter:
Borehole diameter 4" = DN100;
Motor diameter max. 96 mm
Pump diameter max. 98 mm
04
Nominal volume flow (m³/h)
05
Number of pump stages
P&P
Plug & Pump
/FC
FC = Fluid Control
DS = Pressure circuit
5.2
Technical data
Admissible fluid constituents:
max. sand content 50 g/
m³
Mains voltage:
1~230 V
Mains frequency:
50 Hz
Protection class:
IP 68
Max. flow rate:
5,5 m³/h
Max. delivery head:
93 m
Ø Pressure socket:
1¼"
Admissible temperature range
of fluid:
+3 to 30 °C
Max. submersion depth:
200 m
Max. switching frequency:
20/h
Speed
2900 min
-1
Summary of Contents for Wilo-Sub TWU 4 Series
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