General Information; Safety; Transport And Interim Storage; Product And Accessory Description - Wilo Sub TWU 6 Instrucciones De Instalación Y Funcionamiento

ENGLISH

1 GENERAL INFORMATION

Installation and service by qualified personnel only!
1.1. Uses
Submersible pumps of the TWU series are suitable for drawing
groundwater from deep wells, for industrial use and for sup-
plying water in rural areas.
1.2 Product data
1.2.1 Rating plate
Submersible motor pump
Nominal pump diameter
Min. bore-hole diameter = 6"/8"/10"
Impeller type: r = radial
s = semi-axial
Nominal volume flow Q (m
Number of stages
Motor power [kW]
1.2.2 Technical characteristics
– Temperature range:
– Max. Flow rate:
– Max. pump lift:
– Maximum permissible
sand content
– Pressure pipe connection: 2" to 6", depending on size of
– Max. immersion depth:

2 Safety

These instructions contain important information which must be
followed when installing and operating the pump. These ope-
rating instructions must therefore be read before assembly and
commissioning by the installer and the responsible operator.
Both the general safety instructions in the "Safety precautions"
section and those in subsequent sections indicated by danger
symbols should be carefully observed.
2.1 Danger symbols used in these operating instructions
Safety precautions in these operating instructions which, if not
followed, could cause personal injury are indicated by the sym-
bol:
when warning of electrical voltage with
The following symbol is used to indicate that by ignoring the re-
levant safety instructions, damage could be caused to the
pump/machinery and its functions:
ATTENTION!
2.2 Staff training
The personnel installing the pump must have the appropriate
qualifications for this work.
2.3 Risks incurred by failure to comply with the safety
precautions
Failure to comply with the safety precautions could result in per-
sonal injury or damage to the pump or installation. Failure to
comply with the safety precautions could also invalidate any
claim for damages.
8
TWU 6 r- 31 03 - 4
3
/h)
+3 °C to +30 °C
3
320 [m /h]
350 m
3
50 mg/ m
pump
200 to 300 m, depending on
size of pump
,
In particular, lack of care may lead to problems such as:
– Failure of important pump or machinery functions,
– Personal injury due to electrical, mechanical and bacteriolo-
gical causes.
– Damage to property.
2.4 Safety precautions for the operator
Existing regulations for the prevention of accidents must be fol-
lowed.
Dangers caused by electrical energy are to be excluded. Di-
rectives issued by the VDE [German Association of Electrical
Engineers] and the local electricity supply companies are to be
observed.
2.5 Safety information for inspection and assembly
The operator must ensure that all inspection and installation
work is carried out by authorised and qualified specialists who
have carefully studied these instructions.
Work on the pump/machinery should only be carried out when
the machine has been brought to a standstill.
2.6 Unauthorized modification and manufacture of spare
parts
Alterations to the pump or installation may only be carried out
with the manufacturer's consent. The use of original spare parts
and accessories authorised by the manufacturer will ensure sa-
fety. The use of any other parts may invalidate claims invoking
the liability of the manufacturer for any consequences.
2.7 Unauthorised operating methods
The operating safety of the pump or installation supplied can
only be guaranteed if it is used in accordance with paragraph
1 of the operating instructions. The limiting values given in the
catalogue or data sheet must neither be exceeded nor allowed
to fall below those specified.

3 Transport and interim storage

Upon delivery, please check that the device has survived the
journey undamaged. If you find any damage, the normal rou-
tine mesaures are to be initiated with the haulage firm.
During transport and in storage the pump
ATTENTION!
must be protected against moisture, frost and
mechanical damage.Store horizontally in
shockproof places.

4 Product and accessory description

4.1. Description (see fig. 1)
1 Pump Wilo-Sub 6"/8"/10"
2 Dipped electrode mass
3 Low-water dipped electrode (off)
4 Dipped electrode upper level (on
5 Motor connecting cable
6 Dynamic level (pump running)
7 Static level (pump switched off)
8 Switch box (with dry-run protection)
9 Mains connection/power supply
10 Manometer
11 Pressure vessel/reservoir
12 shut-off valve
13 non-return valve
4.2. Pump
– Multistage submersible pump with radial (abbreviation r) or
semi-axial (abbreviation s) impellers, depending on size of
pump, for use in 6", 8" and 10" bore-holes.
– with built-in non-return valve.