English
10
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 trans-
ported and stored correctly.
• The pump may only be suspended / supported by
the strap provided for this purpose. Never by
the cable.
• 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
Wilo-Sub TWU4 submersible pumps are suitable
for pumpingclean or slightly contaminated water
without long-fibre and abrasive constituents.
They are used
• for boreholes and cisterns,
• for pumping and distributing secondary hot water
for:
• domestic use
• agriculture (irrigation, sprinkling)
• industry (pressure boosting, etc.)
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 combus-
tible fluids 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 delivery
5.3.1 Single pump variant
Submersible pump with
• Single-phase motor (version EMSC, also with
starting condenser)
• Switch box with motor protection (condenser -
depending on size)
• 1.5 m, 2.5 m or 4 m detachable connecting cable
(VDE/KTW) 4 x 1.5 mm² cable cross-section
• thermal motor protection and on/off switch
• Installation and operating instructions
5.3.2 Plug & Pump submersible pump variant with
• Single-phase motor
• Switchbox with motor protection (integrated
condenser - depending on size)
• Wilo Fluid Control (Wilo pressure circuit)
• 30 m cable between pump and switchbox
• 30 m securing cable
NOTE: the electrical connections are made at the
works.
• Installation and operating instructions
5.4 Accessories (optional):
• Non-return valve at borehole outlet
• Dry-running protection system: float switch or
electrode
Example:
WILO-Sub TWU4-0211EM
TWU
Submersible pump
4
Minimum diameter:
Borehole diameter 4" = DN100;
Motor diameter max. 96 mm
Pump diameter max. 98 mm
02
Nominal volume flow (m³/h)
11
Number of pump stages
EM
EM = Alternating current ~230V, 50Hz with
condenser
EMSC = Alternating current 1~230V, 50Hz
with additional starting condenser
DM = Three-phase current 3~400V, 50Hz
5.2
Technical data
Admissible fluid constituents:
max. sand content 50 g/m³
Mains voltage:
1~230 V, 3~400 V
Mains frequency:
50 Hz
Protection class:
IP 68
Max. flow rate:
24 m³/h
Max. delivery head:
300 m
Ø Pressure port:
1¼" and 2" depending on
type
Admissible temperature range
of fluid:
+3 to 30 °C
Max. submersion depth:
200 m
Max. switching frequency:
20/h
Summary of Contents for WILO-Sub TWU4-0211EM
Page 4: ......
