Pentair U3, U5, U6, U3 K, U5 K Instruction Manual

U3 - U5 - U6

U3 K U3 K SPEZIAL U5 K U6 KE U6 KD
U3 KS U3 KS SPEZIAL U5 KS U6 KES U6 KDS

EN Instruction Manual

JUNG-PUMPEN.DE B 42054-30-1806

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You have purchased a product made by
JUNG PUMPEN and with it, therefore, also
excellent quality and service. Secure this
service by carrying out the installation
works in accordance with the instruc­tions, so that our product can perform
its task to your complete satisfaction.
Please remember that damage caused
by incorrect installation or handling will
adversely affect the guarantee. There­fore please adhere to the instructions in
this manual!

This appliance can be used by children
aged 8 years or over and by persons with
limited physical, sensory or intellectual
capabilities, or with limited experience
and knowledge, provided that they are
supervised or have been instructed in
the safe use of the appliance and are
aware of the dangers involved. Children
must not be allowed to play with the ap­pliance. Cleaning and user maintenance
must not be carried out by children un­less they are supervised.

Damage prevention in case of failure

Like any other electrical device, this product
may fail due to a lack of mains voltage or a tech­nical defect.

If damage (including consequential damage) can
occur as a result of product failure, the following
precautions can be taken at your discretion:

• Installation of a water level dependent (under
circumstances, mains-independent) alarm
system, so that the alarm can be heard before
damage occurs.

• Inspection of the collecting tank/chamber for
tightness up to the top edge before – or at the
latest, during – installation or operation of the
product.

• Installation of backow protection for drain-

age units that can be damaged by wastewater
leakage upon product failure.

• Installation of a further product that can com-
pensate in case of failure of the other product
(e.g. duplex unit).

• Installation of an emergency power genera-
tor.

As these precautions serve to prevent or mini­mise consequential damage upon product fail­ure, they are to be strictly observed as the man­ufacturer’s guideline – in line with the standard

DIN EN specications as state of the art – when

using the product (Higher Regional Court Frank­furt/Main, Ref.: 2 U 205/11, 06/15/2012).

SAFETY INSTRUCTIONS

This instruction manual contains essential in­formation that must be observed during instal­lation, operation and servicing. It is therefore
important that the installer and the responsible
technician/operator read this instruction manu­al before the equipment is installed and put into
operation. The manual must always be available
at the location where the pump or the plant is
installed.

Failure to observe the safety instructions can
lead to the loss of all indemnity.

In this instruction manual, safety information is
distinctly labelled with particular symbols. Dis­regarding this information can be dangerous.

General danger to people

Warning of electrical voltage

NOTICE!

Danger to equipment and operation

Qualication and training of personnel

All personnel involved with the operation, ser­vicing, inspection and installation of the equip-

ment must be suitably qualied for this work

and must have studied the instruction manual

in depth to ensure that they are suciently

conversant with its contents. The supervision,
competence and areas of responsibility of the
personnel must be precisely regulated by the

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operator. If the personnel do not have the ne­cessary skills, they must be instructed and trai­ned accordingly.

Safety-conscious working

The safety instructions in this instruction man­ual, the existing national regulations regarding
accident prevention, and any internal working,
operating and safety regulations must be ad­hered to.

Safety instructions for the operator/user

All legal regulations, local directives and safety
regulations must be adhered to.

The possibility of danger due to electrical en­ergy must be prevented.

Leakages of dangerous (e.g. explosive, toxic,
hot) substances must be discharged such that
no danger to people or the environment occurs.
Legal regulations must be observed.

Safety instructions for installation, inspection
and maintenance works

As a basic principle, works may only be car­ried out to the equipment when it is shut down.
Pumps or plant that convey harmful substances
must be decontaminated.

All safety and protection components must be

re-tted and/or made operational immediately

after the works have been completed. Their ef­fectiveness must be checked before restarting,
taking into account the current regulations and
stipulations.

Unauthorised modications, manufacture of
spare parts

The equipment may only be modied or altered

in agreement with the manufacturer. The use of
original spare parts and accessories approved
by the manufacturer is important for safety rea­sons. The use of other parts can result in liability
for consequential damage being rescinded.

Unauthorised operating methods

The operational safety of the supplied equip­ment is only guaranteed if the equipment is
used for its intended purpose. The limiting val­ues given in the "Technical Data" section may not
be exceeded under any circumstances.

Instructions regarding accident prevention

Before commencing servicing or maintenance
works, cordon off the working area and check
that the lifting gear is in perfect condition.

Never work alone. Always wear a hard hat, safety
glasses and safety shoes and, if necessary, a
suitable safety belt.

Before carrying out welding works or using elec­trical devices, check to ensure there is no dan­ger of explosion.

People working in wastewater systems must be
vaccinated against the pathogens that may be
found there. For the sake of your health, be sure
to pay meticulous attention to cleanliness wher­ever you are working.

Make sure that there are no toxic gases in the
working area.

Observe the health and safety at work regula-

tions and make sure that a rst-aid kit is to hand.

In some cases, the pump and the pumping me­dium may be hot and could cause burns.

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 U3, U5 and U6 se­ries are suitable for pumping domestic waste
water without stones. This includes also water
from household dishwashers and household
washing machines.

The U3 K spezial can also pump aqueous solu­tions with up to 10% salt content and conden­sate from gas condensing boilers.

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The U6 can also pump ground water, drainage
silage liquor and liquid manure.

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 Germany)

For non-standard utilization conditions, further
regulations must be observed (e.g. VDE 0100
in Germany, part 701: bathrooms 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.

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.

Dimensions [mm]

H B T BS TS

U3 K 255 160 225 195 280
U5 K 280 170 250 205 290
U6 K 335 175 255 210 295

Pumps with special oat assembly, (JP44795)

H BS TS

U3 KS 225 270 220

Pumps with special oat assembly, (JP44207)

H BS TS

U5 KS 280 245 285
U6 KS 335 250 290

Switching points On - Off for built-in switching

Normal Special

● ○ ● ○

U3 KS 215 110 105 45

U5 KS 240 135 - -

U6 KS 270 170 - -

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ELECTRICAL
CONNECTION

NOTICE! Only qualied 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-specic 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 damage.

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 tempera­tures 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!

Rotational direction

Applies only for three-phase pumps. The rota­tional direction must be checked before instal­lation! If the rotational direction is correct, the
start-up jolt should be counter-clockwise. If the
rotational direction is wrong, 2 phases of the
supply cable must be swapped over, because a
wrong direction of rotation results in an over­load of the pump.

Alternating and three-phase current circuit dia­grams

INSTALLATION

The pump must be installed as shown in the ex­amples. For installations in accordance with EN
12056-4, the pressure pipe must be laid in a loop

above the local backow level and protected
with a backow prevention valve. The rubber
ap supplied (U3 and U5) is for mobile operation

only.
A correspondingly larger diameter pipe should

be used for longer pressure pipelines to avoid
pipe friction losses.

In contrast to pumps with built-in level control,
the ON an OFF switching heights of pumps with­out built-in level control are variable by the use
of a separate level controller. Our ready to con­nect level controls can be installed without spe-

cic electrotechnical skills.

Permanent venting may be necessary if the
pump runs dry from time to time (pressure out­let surfaced). This can occur for example if the
residual water in the collecting chamber evapo­rates or if the pump runs in “snore” mode during
the test run.

To vent the pump housing the attached elbow
must be drilled at the marked location to provide
a 6 mm drill-hole.

NOTICE! If the pump is malfunctioning, part of
the contents of the oil reservoir could escape
into the pumping medium.