PENTAIR U5 K Jung Submersible Sewage Pump Instruction Manual

: June 12, 2024
: Pentair

Table of Contents

PENTAIR U5 K Jung Submersible Sewage Pump
SAFETY INSTRUCTIONS
APPLICATION
ELECTRICAL CONNECTION
INSTALLATION
MAINTENANCE
QUICK TIPS FOR REMEDYING FAULTS
Technical Data
Performance
Declaration of Conformity
References
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PENTAIR U5 K Jung Submersible Sewage Pump

PENTAIR-U5-K-Jung-Submersible-Sewage-Pump-product

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 instruc-tions, 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. There-fore 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 ap-pliance. Cleaning and user maintenance must not be carried out by children un-less 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 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 backflow 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 specifications 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 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! Danger to equipment and operation

Qualification and training of personnel
All personnel involved with the operation, ser-vicing, inspection and installation of the equip-ment must be suitably qualified for this work and must have studied the instruction manual in depth to ensure that they are sufficiently 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-fitted 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 modifications, manufacture of spare parts
The equipment may only be modified 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 first-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!

APPLICATION

WARNING!

The pump must only be connected to sockets that have been installed properly in accordan-ce 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 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 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 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.
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
U5 K	280	170	250	205	290
U6 K	335	175	255	210	295

Pumps with special float 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
	●	○
U5 KS	240	135
U6 KS	270	170

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-specific 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!

Rotational direction
Applies only for three-phase pumps. The rota-tional direction must be checked before instal-lation! 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 over-load of the pump.
Alternating and three-phase current circuit dia-grams

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 backflow level and protected with a backflow prevention valve. The rubber flap supplied (U5) is for mobile operation only.
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 specific electrotechnical skills.
The pump housing is automatically vented using the enclosed bracket. If this is not required, the vent opening can be closed, such as for mobile operation.

Dimensions of chamber
Single installation with pump base: 40 x 40 cm Single installation with guide rail system: 40 x 50 cm and Duplex installation: 50 x 50 cm
Example of installation with guide rail system

Installation
Fix the coupling base firmly to the floor of the collection chamber using wall plugs and then mount the guide rail. Next, install the pressure pipe including the necessary fittings, such as the non-return valve and shut-off valves.
Reseal the coupling catch at the pump and tighten it until it is “hand tight”. Finally, fit the pump with the coupling catch onto the guide rail and lower it into place using a chain fixed to the handle.
Example of installation Duplex unit

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!

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 modifica-tion. This reduces the performance of the pump only insignificantly.
This modification is carried out as follows. De-tach the foot strainer and carefully drill a hole into the 3 markings with the ø 5 symbols. De-burr the drillholes. When reattaching the foot strainer, ensure that the new drill- holes are not covered by the bars of the foot strainer. The U5 and U6 ranges provide markings on the housing and the foot strainer to help you.

Low level pumping
Flooded areas can be pumped out leaving only few mm of residual water without the need for optional extras, U5K: 6 mm and U6K: 10 mm. To do so, the foot strainer must be levered off with a screwdriver. In the case of pumps with an at-tached control, the float 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 minimum water level available of, for U5K: 60 mm and for U6K: 90 mm.

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.
The enclosed rubber flap (not Flutbox and U6) is fitted in the attached elbow (U5). Ensure that the flap opens in the direction of flow.

Enlarging the free passage

The free passage of the U5 and U6 pump ranges can be enlarged from 10 to 20 mm. This is done by levering off the foot strainer and attaching the enclosed extensions to the integrally mold-ed pump feet. The foot strainer no longer fits under the pump.
NOTICE! If the pump is malfunctioning, part of the contents of the oil reservoir could escape into the pumping medium.

MAINTENANCE

Maintenance and inspection of this product must be carried out in accordance with EN 12056-4.

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, insufficient 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 according to the hardness of the water.

Cleaning
The foot strainer prevents coarse impurities from entering the pump. Regular cleaning of the float and the foot strainer ensures optimum per-formance and operation.

Cleaning of the impeller U5 and U6
To clean the impeller, and in the event of an obstacle or blockage, the foot strainer must be levered off. After this, take out the screws on the underside of the pump and remove the cover. The impeller can now be cleaned.

CAUTION!

Worn impellers can have sharp edges.
If the pump performance decreases, the impel-ler must be checked for wear and replaced only by the manufacturer if necessary.
Tightening torque MAfor A2 screw materials
for M 5 MA = 5 Nm
for Amtec 3,5 MA = 1 Nm
for Amtec 5,0 MA = 2 Nm

QUICK TIPS FOR REMEDYING 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 fibrous 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
Wrong direction of rotation (for a three-pha-se current) = ask a qualified electrician to change 2 phases of the supply line

0197

JUNG PUMPEN GmbH – Industriestr. 4-6 33803 Steinhagen, Germany

20

401.17-22.02

EN 12050-2:2001; 2015

Lifting plant for faecal-free wastewater DN 32

U5 K (JP09386/0) U5 KS (JP09387/0) U5 KS (JP09417/0)

|

U6 K E (JP00226/2) U6 K D (JP00228/3) U6 K ES (JP00227/2) U6 K ES (JP09260/2) U6 K DS (JP00229/3) U6 K DS (JP09261/3)

Collecting and automatically lifting faecal-free waste water above the backflow level in buildings and sites

Technical Data

| | U5 K/KS| U6 KE/KES| U6 KD/KDS| U6 KES
---|---|---|---|---|---
| [kg]| 4,7 / 4,5| 5,9 / 5,3| 6,6 / 5,8| 5,3
| DN| 32| 32| 32| 32
[mm]| 10 / 20| 10 / 20| 10 / 20| 10 / 20
P1| [W]| 520| 750| 750| 750
P2| [W]| 380| 490| 550| 490
U| [V]| 1/N/PE ~230| 1/N/PE ~230| 3/PE ~400| 1/N/PEx230
f| [Hz]| 50| 50| 50| 60
I| [A]| 2,3| 3,3| 1,3| 3,3

Performance

H [m]| 1| 2| 3| 4| 5| 6| 7| 8| 9
---|---|---|---|---|---|---|---|---|---
| | | | | | | | Q [m 3 /h]
U5| 11,5| 10,5| 9,0| 7,5| 6,5| 4,5| 2,5| |
U6| 15,5| 14,5| 13,0| 11,5| 9,5| 8,0| 6,0| 4,0| 1,5

Declaration of Conformity

Directives – Harmonised standards

2006/42/EG (MD) EN 809:1998/AC:2010, EN ISO 12100:2010, EN 60335-1:2012/A13:2017
2011/65/EU (RoHS) EN55014-1:2017/A11:2020, EN 55014-2:1997/A2:2008, 60034-1AC:2010
2014/30/EU (EMC) EN 61000-3-2:2014, EN 61000-3-3:2013

We hereby declare, under our sole responsibility, that the product is in accordance with the specified Directives.