en
Installation and electrical connection
14
WILO SE 2019-10
CAUTION
Total damage due to moisture ingress
The ingress of moisture into the connection cable damages the cable and the pump!
Never immerse the ends of the connection cable in fluid. Seal them tightly during
storage.
Newly delivered pumps can be stored for one year. Contact customer service before
storing the device for more than one year.
When storing the pump, please note the following points:
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Place the pump upright (vertical) on a firm bearing surface.
Secure the pump against
falling over and slipping!
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The max. storage temperature is -15 °C to +60 °C (5 °F to 140 °F). The max. relative
humidity is 90 %, non-condensing. We recommend frost-proof storage. Ambient
temperature: 5 to 25 °C (41 to 77 °F), relative humidity: 40 to 50 %.
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Do not store the pump in rooms in which welding work is carried out. The resulting
gases or radiation can corrode the elastomer parts and coatings.
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Seal the suction and pressure connection tightly.
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Protect the connection cable against kinking and damage. Maintain a constant bend
radius!
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Impellers must be turned by 180° at regular intervals (3 – 6 months). This prevents
the bearings from jamming and renews the lubrication film on the mechanical seal.
WARNING! There is a risk of injury due to sharp edges on the impeller and suction
port!
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Elastomer parts and the coating are subject to natural brittleness. Contact customer
service if the mixer has to be stored for more than 6 months.
After storage, remove any dust and oil from the pump and check the coating for dam-
age. Repair damaged coatings before further use.
6
Installation and electrical con-
nection
6.1
Personnel qualifications
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Electrical work: A qualified electrician must carry out the electrical work.
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Installation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
6.2
Installation types
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Vertical portable wet well installation
The following installation types are
not
permitted:
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Vertical stationary wet well installation with suspension unit
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Vertical stationary dry well installation
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Horizontal installation
6.3
Operator responsibilities
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Observe the locally applicable professional and trade association accident preven-
tion and safety regulations.
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Observe all regulations for working with heavy loads and under suspended loads.
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Provide protective equipment and ensure that the protective equipment is worn by
personnel.
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Observe local regulations on the latest technology for the disposal of wastewater
and sewage (without faeces).
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Avoid pressure surges!
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Check that the available consulting documents (installation plans, design of the op-
erating space, inflow conditions) are complete and correct.
6.4
Installation
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
