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7
Installation and electrical
connection
Safety
7.1
Preparation
7.2
Setting up the pump alone (variant
B, according to Wilo variant key)
7.2.1 General
67
DANGER! Risk of fatal injury!
Improper installation and electrical connection can result in fatal
injury.
• Have the electrical connections established by licensed electri-
cians only, in compliance with the applicable regulations.
• Accident prevention regulations must be observed!
DANGER! Risk of fatal injury!
Failure to install safety devices on the motor, terminal box or on
the coupling can cause electrical shock or contact with rotating
parts, potentially resulting in life-threatening injuries.
• Before commissioning, all safety devices (such as terminal box
covers or coupling covers) that were removed before must be rein-
stalled.
DANGER! Risk of fatal injury!
The pump itself and the pump parts can be extremely heavy. Falling
parts pose a risk of cuts, crushing injuries, bruises or impacts,
which may lead to death.
• Always use suitable lifting equipment and secure parts against fall-
ing.
• Never stand beneath a suspended load.
CAUTION! Risk of damage to property!
Danger of damage due to improper handling.
• Have the pump installed by qualified personnel only.
CAUTION! Damage to the pump due to overheating!
Never allow the pump to run dry. Dry running can damage the
pump, particularly the mechanical seal or the stuffing box packing.
• Make sure that the pump never runs dry.
CAUTION! Risk of injury and damage to property!
Danger of damage due to improper handling.
• Never set up the pump unit on unfortified surfaces or surfaces
which cannot bear loads.
• Install only after completion of all welding and soldering work and
after the pipe system has been flushed, if required. Dirt can cause
pump failure.
• The pumps (in the standard version) must be protected from the
weather and installed in a frost/dust-free, well-ventilated environ-
ment which is not potentially explosive.
• Install the pump in a place that is easy to access so that later inspec-
tions, maintenance (e.g. exchanging the mechanical seal) or replace-
ment is easily possible.
• A travelling crane or a device for attaching hoisting gear should be
installed above the set-up site of large pumps.
When installing a pump by itself (variant B, according to the Wilo var-
iant key), the required components (coupling, coupling protection
and baseplate of the manufacturer) should be used.
WILO SE 07/2013
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