English
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1 General
1.1 Applications
Pumps for pumping clear liquids in the residential
sector, in agriculture and in industry. Intake from
wells, springs, water streams, ponds ... not to be
used with Abyssinian wells (driven wells).
1.2 Technical data
• Maximum operating pressure:
10 bar
• Minimum intake pressure:
6 bar
• Temperature range:
- Version with seals and inserts made of EPDM*:
-15° to +110°C
- Version with seals and inserts made of VITON*:
-15° to +90°C
• Suction head:
depending on the Net Positive Suction Head
(NPSH) of the pump
• Ambient temperature (standard):
+40°C (in cases of higher temperatures, please
consult Wilo after-sales service)
• Sound pressure level 50/60Hz 0/+3 dB(A): 66
*Application in potable water sector:
WRAS: English standard,
KTW: German standard.
2 Safety
These Installation and operating instructions con-
tain basic information which must be adhered to
during installation and commissioning. For this
reason, these Installation and operating instruc-
tions must, without fail, be read by the service
technician and the responsible operator before
installation and commissioning. It is not only the
general safety instructions which are listed here
under the main heading of Safety which must be
complied with, but rather also the special safety
instructions which are listed under the following
main headings.
2.1 Identification of notes in the Installation and
operating instructions
The safety instructions contained in these
Installation and operating instructions which, if
they are not observed, could endanger person-
nel, are specially marked with the General danger
symbol,
and with
in cases of warnings against electrical voltage.
The word
is included with safety instructions which, if they
are not observed, could endanger the installation
and its function.
2.2 Personnel qualifications
The personnel responsible for installation must
be in possession of the respective qualifications
required for this work.
2.3 Danger in the event of nonobservance of the
safety instructions
The failure to observe the safety instructions
could result in dangers to personnel and pump/
installation. Nonobservance of the safety instruc-
tions can result in the loss of any claims to dam-
ages.
In particular, the failure to observe these instruc-
tions could lead to the following hazards:
• Failure of important functions of the pump/instal-
lation.
• Hazards to personnel resulting from electrical,
mechanical or bacteriological actions,
• Property damage.
2.4 Safety instructions for the operator
The existing regulations regarding accident pre-
vention are to be complied with.
Hazards connected with electrical energy are to
be excluded. The regulations of the VDE (Verband
der Elektrotechnik Elektronik und Informations-
technik e.V.) and of the local energy supply com-
panies are to be complied with.
2.5 Safety instructions for inspection and installa-
tion work
It is the responsibility of the operator to ensure
that all inspection and installation work is carried
out by authorised and qualified professionals
who have acquired sufficient information from a
detailed study of the Installation and operating
instructions.
As a fundamental principle, work may only be car-
ried out on the pump/installation when it/they are
at a standstill.
2.6 Customer’s own conversions and spare parts
manufacture
Modifications to the pump/installation are not
permitted except after consultation with the
manufacturer. The use of original spare parts and
manufacturer-authorised accessories promotes
safety. The use of other parts could lead to the
cancellation of liability for the results of such
substitutions.
2.7 Improper use
The operating safety of the supplied pump/instal-
lation is only guaranteed for conventional use
in accordance with Section 1 of the Installation
and operating instructions. It is not permitted to
exceed or fail to meet the limit values specified
in the catalogue/data sheet under any circum-
stances.
3 Transport, handling and storage
The pump/installation is to be checked at once
upon delivery for any damage that may have
occurred in transit. If any damages are found, then
they are to be reported to the transport company
immediately within the time periods specified.
If the material is to be installed later,
then it must be stored in a dry location.
The material must be protected against
impact shocks and all external influen-
ces (moisture, frost, etc.).
Handle the pump carefully so that the geometry
and alignment of the installation are not altered.
The pump is not permitted under any
circumstances to be raised on the fre-
quency converter.
ATTENTION!
ATTENTION!
ATTENTION!
WILO SE 04/2016
Summary of Contents for Economy MHIE 1 Series
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