English
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2. Safety precautions
These instructions contain important information
which must be follow ed when installing and ope-
rating the pump. It is therefore im perative that
they be read by both the installer and the operator
before the pump is installed or started up.
Both the general safety instructions in the ‘Saf-
ety 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 follow ed, could cause personal injury
are indicated by the symbol:
Safety precautions warning of danger due to elec-
tricity are indicated by the symbol:
Safety precautions which, if not followed, could
damage the pump or installation and cause it to
malfunction are indicated by the word:
WARNING!
2.2 Qualified Personnel
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 personal injury or damage to the pump
or installation. Failure to comply with the safety
precautions could also invalidate any claim for da-
mages.
In particular, failure to comply with these safety
precautions could give rise, for example, to the
following risks:
• the failure of important parts of the pump or
installation,
• personal injury due to electrical and mechanical
causes.
2.4 Safety precautions for the operator
Existing regulations for the prevention of acci-
dents must be followed.
To prevent the risk of electric shock or electrocu-
tion, VDE regulations and those of the local supply
company must be followed.
2.5 Safety precautions for inspection and
installation
The operator must ensure that all inspection and
installation work is carried out by authorized and
qualified specialists who have carefully studied
these instructions. In principle, work should not
be carried out on a running pump or installation.
2.6 Unauthorized alterations 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 autho-
rized by the manufacturer will ensure safety. The
use of other parts may invalidate claims invoking
the manufacturer’s liability for any consequences.
2.7 Improper use
The operational safety of the pump or installation
supplied can only be guaranteed if it is used in ac-
cordance with paragraph 1 of the operat ing instruc-
tions. The limits given in the catalogue or data sheet
must under no circumstances be exceeded.
3. Transport and storage
WARNING!
During transport and in storage
the pump must be protected
against moisture, frost and mechanical damage.
4. Description of product and accessories
4.1 Pump description
(fig. 1)
The pump is a multistage (2-6 stage) normal suction,
horizontal high pressure centrifugal pump with a
block design with horizontal inlet (1) and vertical
pressure glands (2).
The hydraulic section is equipped with the given
number of stage housings (5) and impellers (6) in
a modular construction. The impellers are fitted
on a single motor-pump shaft (7). The pres-
sure casing (8) surrounding the hydraulic section
guarantees a fail-safe seal. All parts in contact
with the fluid, such as stage chambers, impellers
and the pressure casing, are made of chromium ni-
ckel steel. The shaft hole through the pump casing
is sealed to the motor with an axial face seal (9).
E = All parts in contact with the fluid have been
cleared by KTW and/or WRAS and are therefore
suitable for use with drinking water.
The AC motors are equipped with a thermal cut-
out. This switches off the motor when the permis-
sible temperature of the motor coil is exceeded
and switches it back on again automatically once
it has cooled down.
Low-water protection. The pump and in particu-
lar the axial face seal must not run dry. Low-water
protection should be provided by the customer by
fitting the relevant parts from the Wilo range of
accessories.
The speed of the pump can be controlled when
connected to a frequency converter or motor filter
(see paragraph 5.3)
4.2 Components supplied
• Pump,
• Installation and Operating Instructions
4.3 Accessories
Accessories must be ordered separately.
• WV/COL switching unit with relevant accessories
for automation,
• CO-ER switching unit with relevant accessories
for automation,
SALMSON 06/2016
Summary of Contents for MULTI-H 8 Series
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