Installation; Electrical Connection - Pentair UV3 Instruction Manual

For installations in areas subject to explosion hazards, special
regulations apply!
APPLICATION
WARNING!
The pump must only be connected to sockets that have been
installed properly in accordance with the regulations and are
protected with at least 10 A (slow) and RCD-safety switches
(30mA).
DANGER!
The pump must never be used when a person is in the water.
Submersible pumps from the UV 3 series are suitable for
pumping domestic waste water without stones. This includes
also water from household dishwashers and household wash-
ing machines.
NOTICE! In outdoor applications, only pumps with at least a
10-metre mains cable must be used.
When using the pumps, the relevant national laws, regulations
and stipulations must be adhered to, for example:
• Domestic contaminated and waste water (e.g. EN 12056 in
Europe)
• Installation of low voltage systems (e.g. VDE 0100 in Germa-
ny)
For non-standard utilization conditions, further regulations
must be observed (e.g. VDE 0100 in Germany, part 701: ba-
throoms and shower rooms; part 702: swimming pools and
fountains and part 737: outdoor use).
Temperatures
The pumped medium must have a temperature of max 35 °C.
For a short time 70 °C are permissible (S2: 10 min, S3: 40%).
The submersible pump is frost-resistant down to -20 °C when
stored in dry conditions. When installed, however, it must not
be allowed to freeze in the water.
Transport
The pump must always be lifted by the handle and never by
the power supply cable! The pump should only be lowered into
deeper chambers or pits using a rope or chain.

ELECTRICAL CONNECTION

NOTICE! Only qualified electricians may carry out electrical
works to the pump or the controls.
WARNING!
Before carrying out any works: disconnect the pump and the
controls from the mains and take steps to ensure that no one
else can reconnect them to the power supply.
The relevant standards (such as EN standards), country-spe-
cific regulations (such as VDE in Germany), and the regulations
of the local power supply companies must be observed.
NOTICE! Never put the mains plug or a free lead end in water!
If water gets into the plug, this can cause malfunctions and da-
mage.
Observe the operating voltage (see the type plate)!
The pump is provided with a winding thermostat. In case of
unacceptably high temperatures it switches off the pump to
protect it against possible damage. Unacceptably high tem-
peratures may result e.g. from dry running or mechanical or
electrical overload.
CAUTION!
The pump is switched on again automatically after cooling
down - risk of injury!
For this reason, always disconnect the device from the mains
before remedying the fault! In order to do this, unplug from the
mains supply or remove the pre-fuses of the pump controls!

INSTALLATION

The pump must be installed as shown in the examples. For in-
stallations in accordance with EN 12056-4, the pressure pipe
must be laid in a loop above the local backflow level and pro-
tected with a backflow prevention valve in accordance with EN
12050-4.
A correspondingly larger diameter pipe should be used for
longer pressure pipelines to avoid pipe friction losses.
With any pump that has no automatic switching, the switch-on
and switch-off heights can be set variably with a separate level
control. Our ready to connect level controls can be installed
without specific electrotechnical skills.
NOTICE! The floats of the level controller and alarm system are
installed so that they are freely movable but not under the inlet.
Please observe the minimum distances. The controls may only
be installed in a dry and well ventilated room!
NOTICE! If the pump is malfunctioning, part of the contents of
the oil reservoir could escape into the pumping medium.
Flushing device
The pump can keep the intake section at the bottom of the
chamber clear of deposits to a large extent if you carry out a
small modification: Remove the strainer basket, unscrew the
three red closing caps and replace the strainer basket. This re-
duces the performance of the pump only insignificantly.
ENGLISH
The pump housing is automati-
cally vented. If this is not desired,
the ventilation opening can be
closed, e.g. for mobile operation.
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