Pentair Jung Pumpen U3 Series User manual

U3
U3 K U3 K SPEZIAL
U3 KS U3 KS SPEZIAL
EN Instruction Manual
JUNG-PUMPEN.DE B 55702.10-2022.09

2
Installation example
40 x 40 mm / Ø 50 cm
Installation example
50 x 50 mm / Ø 50 cm
Installation GR 32

33
ENGLISH
You have purchased a product made by
Pentair Jung Pumpen and with it, there-
fore, 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 satis-
faction. Please remember that damage
caused by incorrect installation or han-
dling will adversely affect the guarantee.
Therefore please adhere to the instruc-
tions 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 ap-
pliance. Cleaning and user maintenance
must not be carried out by children un-
less they are supervised.
If this unit is equipped with a mains
connection line without a plug or other
means of disconnection from the mains.
A complete disconnecting device must
be installed on site in the xed electri-
cal installation in accordance with the
installation regulations. A main switch of
overvoltage category III can be installed
as a complete disconnecting device. If
the mains connection cable of this unit
is damaged, it must be replaced by the
manufacturer or its customer service or
a similarly qualied person in order to
avoid hazards.
Damage prevention in case of failure
Like any other electrical device, this product
may fail due to a lack of mains voltage or a tech-
nical 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 mini-
mise consequential damage upon product fail-
ure, they are to be strictly observed as the man-
ufacturer’s guideline – in line with the standard
DIN EN specications as state of the art – when
using the product (Higher Regional Court Frank-
furt/Main, Ref.: 2 U 205/11, 06/15/2012).
SAFETY INSTRUCTIONS
This instruction manual contains essential in-
formation that must be observed during instal-
lation, operation and servicing. It is therefore
important that the installer and the responsible
technician/operator read this instruction manu-
al 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

44
ENGLISH
lead to the loss of all indemnity.
In this instruction manual, safety information is
distinctly labelled with particular symbols. Dis-
regarding this information can be dangerous.
General danger to people
Warning of electrical voltage
NOTICE!NOTICE! Danger to equipment and operation
Qualication and training of personnel
All personnel involved with the operation, ser-
vicing, 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
operator. If the personnel do not have the ne-
cessary skills, they must be instructed and trai-
ned accordingly.
Safety-conscious working
The safety instructions in this instruction man-
ual, the existing national regulations regarding
accident prevention, and any internal working,
operating and safety regulations must be ad-
hered 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 en-
ergy 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 car-
ried 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 ef-
fectiveness 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 rea-
sons. The use of other parts can result in liability
for consequential damage being rescinded.
Unauthorised operating methods
The operational safety of the supplied equip-
ment is only guaranteed if the equipment is
used for its intended purpose. The limiting val-
ues 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 elec-
trical devices, check to ensure there is no dan-
ger 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 wher-
ever 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 me-
dium may be hot and could cause burns.
For installations in areas subject to explosion
hazards, special regulations apply!

55
ENGLISH
APPLICATION
WARNING!
The pump must only be connected to electric
circuits that have been installed properly in ac-
cordance 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 and U3 spezial
series are suitable for pumping domestic waste
water without stones. This includes also water
from household dishwashers and household
washing machines.
The U3 spezial can also pump aqueous solutions
with up to 15% salt content and condensate
from gas condensing boilers.
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 ad-
hered 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. For a short time 60 °C are permis-
sible (S2: 10 min, S3: 30%).
CAUTION!
Scalding by hot water - risk of injury!
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 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 thermo-
stat. In case of unacceptably high temperatures
it switches off the pump to protect it against
possible damage. Unacceptably high tempera-
tures may result e.g. from dry running or me-
chanical or electrical overload.
CAUTION!
The pump is switched on again automatically af-
ter 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!

66
ENGLISH
INSTALLATION
The pump must be installed as shown in the ex-
amples. 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 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 with-
out specic electrotechnical skills.
The pump housing is automatically vented via
the enclosed 90° elbow. If this is not desired, the
ventilation opening can be closed, e.g. for mobi-
le operation.
Flushing device
The pump can keep the intake section at the bot-
tom of the chamber clear of deposits to a large
extent if you carry out a small modication: Lever
off the foot strainer with a screwdriver, unscrew
the three red caps and snap the foot strainer back
on. This reduces the performance of the pump
only insignicantly.
Low level pumping
Flooded surfaces can be drained down to a re-
sidual water level of a few mm without using any
special accessories. To do so, the foot strainer
must be levered off with a screwdriver. In the
case of pumps with an attached control, the
oat switch must be locked in the ON position. It
is not possible therefore in low level pumping to
operate the pump in switching mode.
To make the pump operate, the drainage hose
must be emptied before each pumping run and
there must be a 40mm minimum water level avail-
able.
NOTICE! If the pump is malfunctioning, part of
the contents of the oil reservoir could escape
into the pumping medium.
NOTICE! The oats of the level controller and
alarm system (accessory) are installed so that
they are freely movable but not under the inlet.
Please observe the minimum distances, see
installation example. The controls may only be
installed in a dry and well ventilated room!
CAUTION!
For safety reasons, mobile operation is only al-
lowed vertically and with a foot strainer!
If a hose is used as a pressure line, care must
be taken to ensure that for every pumping op-
eration the hose is completely empty before the
pump is submersed. Any residual liquid would
obstruct the ventilation of the pump housing
and therefore also hinder the pumping opera-
tion. For the same reason, the pump would not
operate if it was switched on before being sub-
mersed.

77
ENGLISH
CLEANING
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.
WARNING!
Check the mains cable for signs of mechanical
and chemical damage. Damaged or kinked ca-
bles must be replaced by the manufacturer.
NOTICE! If the water contains high levels of iron
or lime, insucient cleaning can result in irre-
parable damage to the seal and thus also to the
pump motor in the long term. Consequently, the
pump must be cleaned at regular intervals ac-
cording to the hardness of the water.
Tightening torque MAfor A2 screw materials
for M 5 MA= 5 Nm
for Amtec 3 MA= 0,7 Nm
for Amtec 5 MA= 2 Nm
QUICK TIPS FOR REM-
EDYING FAULTS
Pump does not work
•Check mains current (do not use a pin gauge)
•Fuse faulty = may be too weak (please refer to
Electrical Connection)
•Mains supply cable damaged = repair to be
carried out by manufacturer only
Pump runs but does not pump
•Empty the pressure pipe or hose to allow the
non-return valve to open and the air to escape
from the pump housing, it may be necessary
to carry out a ventilation drilling
Impeller blocked
•Solids and brous matter have become lod-
ged in the pump housing = clean
Decreased pumping performance
•Foot strainer obstructed = clean
•Pressure pipe obstructed = clean
•Rotor worn out = repair to be carried out by
the manufacturer
0197
JUNG PUMPEN GmbH - Industriestr. 4-6
33803 Steinhagen, Germany
20
401.18-22.09
EN 12050-2:2001; 2015
Lifting plant for faecal-free wastewater DN 32
U 3 K (JP50031)
U 3 KS (JP50032)
U 3 KS (JP50033)
U 3 K spez. (JP50043)
U 3 KS spez. (JP50030)
U 3 KS spez. (JP50042)
Collecting and automatically lifting faecal-free
waste water above the backow level in buildings
and sites
REACTION TO FIRE NPD
WATERTIGHTNESS Pass
EFFECTIVENESS (LIFTING EFFECT
- Pumping of solids Pass
- Pipe connections Pass
- Ventilation NPD
- Minimum ow velocity Pass
- Minimum free passage of the plant Pass
- Minimum useful volume NPD
MECHANICAL RESISTANCE
- Load bearing capacity and structural
stability of collection tank for use
NPD
- Structural stability of collection tank
for use inside buildings
NPD
NOISE LEVEL 70 dB(A)
DURABILITY
- of structural stability NPD
- of lifting effectiveness Pass
- of mechanical resistance NPD
DANGEROUS SUBSTANCES NPD

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EN - Technical Data
U3 KS, 4m
U3 KS spezial, 4m
U3 KS, 10m
U3 KS spezial, 10m
U3 K, 10m
U3 K spezial, 10m
[kg] 3,5 4,4 3,8
DN 32 32 32
[mm] 10 10 10
S1 35 °C
S2 60 °C 10 min 10 min 10 min
S3 60 °C 30% 30% 30%
P1 [W] 320 320 320
P2 [W] 220 220 220
U [V] 1/N/PE ~230 1/N/PE ~230 1/N/PE ~230
f [Hz] 50 50 50
I [A] 1,4 1,4 1,4
EN - Performance
H [m] 1 2 3 4 5 6
U3 6,5 6,0 5,7 5,0 4,0 2,4 Q [m3/h]

9

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UKCA 524.10-2022.09
UKCA-Declaration of Conformity
Legislation - Designated Standards
• Supply of Machinery (Safety) Regulations 2008 (MD) EN 809:1998/AC:2010, EN ISO 12100:2010, EN 60335-1:2012/A13:2017
• The Restriction of the Use of Certain Hazardous
Substance in Electrical and Electronic Equipment
Regulations 2012 (RoHS)
• Electromagnetic Compatibility Regulations 2016
(EMC)
EN55014-1:2017/A11:2020, EN 55014-2:1997/A2:2008, 60034-1AC:2010, EN 61000-3-2:2014,
EN 61000-3-3:2013
Name and address of the manufacturer: JUNG PUMPEN GmbH - Industriestr. 4-6 - 33803 Steinhagen - Germany - www.jung-pumpen.de
We hereby declare, under our sole responsibility, that the product is in accordance with the specied Legislation.
U 3 K (JP50031)
U 3 KS (JP50032)
U 3 KS (JP50033)
U 3 K SPEZ. (JP50043)
U 3 KS SPEZ. (JP50030)
U 3 KS SPEZ. (JP50042)
U 5 K (JP50672)
U 5 KS (JP50673)
U 5 KS (JP50674)
U 6 K E (JP50669)
U 6 K D (JP50670)
U 6 K ES (JP50671)
Authorized person for technical documention
JUNG PUMPEN - Stefan Sirges - Industriestr. 4-6 - 33804 Steinhagen
Steinhagen, 28-09-2022
______________________ i.V. ____________________
Stefan Sirges, General Manager Pascal Kölkebeck, Sales Manager
Other normative documents:
EN 60335-2-41:2003/A2:2010 VDE GS 40054271 (U3/3, UV3)
EN 62233:2008/AC:2008 EMC-VDE 40052857 (U3/3, UV3)
VDE GS 40020521 (U3/2, U5)
EMC-VDE 40020827 (U5)
VDE GS 40020499 (U6K D/3)
VDE GS 40020502 (U6K E/2)
EMC-VDE 92272 (U6 _E/D/1)

11

All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos
are the property of their respective owners.  © 2022 Pentair Jung Pumpen
Jung Pumpen GmbH Pentair Water Italy Srl Pentair Water Polska Sp. z o.o.
Industriestr. 4-6 Via Masaccio, 13 ul. Plonów 21
33803 Steinhagen 56010 Lugnano - Pisa 41-200 Sosnowiec
Deutschland Italia Polska
Tel. [phone] Tel. [phone] Tel. [phone]
[e-mail] inf[email protected] inf[email protected]