ProMinent DULCO flex DFAa, Assembly And Operating Instructions Manual, Page: 16 / 32

5 Assembly
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User qualification, installation: trained qualified personnel, see
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Chapter 2.3 ‘Users' qualifications’ on page 10
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User qualification, electrical installation: Electrical technician,
see
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Chapter 2.3 ‘Users' qualifications’ on page 10
CAUTION!
Possible consequence: Slight or minor injuries. Mate‐
rial damage.
Carry out assembly work before commencing the elec‐
trical installation.
Observe the permissible ambient conditions.
5.1 Ambient conditions
NOTICE!
Ambient conditions
Possible consequence: Property damage and
increased wear and tear
Assembly is to be carried out in the following order. If
the pump has to be installed outdoors, then it is to be
equipped with protection against sunlight and weather
influences.
When positioning the pump, ensure that sufficient
room for access is provided for all types of mainte‐
nance work.
5.2 Alignment of the suction side
The pump is to be positioned as near as possible to the liquid con‐
tainer, so that the suction side is kept as short and straight as pos‐
sible.
The suction line must be absolutely airtight and made of a suitable
material, so that it is not squeezed together under vacuum.
The diameter must correspond to the rated diameter of the pump
hose. A larger diameter is recommended in the event of viscose
liquids.
The pump is self-priming and does not require an admission valve.
The pump is reversible and the suction connection can therefore
comprise of one of two options. Normally the option is selected
which is best suited to the physical conditions of the installation.
5.3 Alignment of the discharge side
The discharge line is to be kept as straight and short as possible,
in order to avoid performance reduction.
The diameter must correspond to the rated diameter of the pump
hose. A larger diameter is recommended in the event of viscose
liquids.
Assembly
16