Lubron REVERSE OSMOSIS LK 120 User manual

USER DOCUMENTATION
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REVERSE OSMOSIS
INSTALLATION: LK 120

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ABOUT THIS DOCUMENTATION
This documentation was prepared in English by Lubron Waterbehandeling B.V.
Version indication: Manual English LK 120 20191105.doc
Version date: 05 November 2019
© Copyright: Lubron Waterbehandeling B.V. , Oosterhout, 2019.
No part of this documentation may be reproduced in any form without permission from
Lubron UK Limited. Except parts that are intended to be reproduced for the use of this
documentation, such as abbreviated instructions and indications on the product.
PRODUCT IDENTIFICATION
This user documentation belongs to the following product:
Title: Reverse osmosis installation
Type: LK 120
For further identification:
see the details on the product nameplate.
THE MANUFACTURER
The product is produced by:
Lubron Waterbehandeling B.V.
Mechelaarstraat 38
4903 RE Oosterhout
The Netherlands
T [phone]
E [email protected]
WWW.LUBRON.EU
THE SUPPLIER
This reverse osmosis installation is supplied by:

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CONTENTS
PREFACE........................................................................................................................................................................................................................................................... 4
HOW TO USE THIS MANUAL ............................................................................................................................................................................................................ 4
WARNINGS IN THIS DOCUMENT.................................................................................................................................................................................................. 5
SERVICE AND INFORMATION ......................................................................................................................................................................................................... 6
1INTRODUCTION.................................................................................................................................................................................................................................. 9
Purpose and operation of the reverse osmosis installation ........................................................................................................... 9
Accessories ............................................................................................................................................................................................................................ 9
2SAFETY.....................................................................................................................................................................................................................................................10
Preface ....................................................................................................................................................................................................................................10
Safety rules...........................................................................................................................................................................................................................10
Users..........................................................................................................................................................................................................................................10
2.3.1 Operators (level 1) ...........................................................................................................................................................................................................10
2.3.2 Maintenance personnel (level 2)........................................................................................................................................................................10
2.3.3 Specialised maintenance personnel (level 3)........................................................................................................................................... 11
Personal protective equipment........................................................................................................................................................................... 11
Visible warnings on the product......................................................................................................................................................................... 11
Hazardous substances and the environment.......................................................................................................................................... 11
2.6.1 Hazards for health and environment.............................................................................................................................................................. 11
2.6.2 Disposal of the product.............................................................................................................................................................................................. 11
3HOW TO OPERATE THE INSTALLATION ........................................................................................................................................................................ 11
Operation of the reverse osmosis installation ......................................................................................................................................... 12
Control of the reverse osmosis installation.................................................................................................................................................13
4INSTALLATION, COMMISSIONING AND MAINTENANCE..................................................................................................................................13
General.....................................................................................................................................................................................................................................13
Storage.....................................................................................................................................................................................................................................13
Installation and commissioning..........................................................................................................................................................................13
4.3.1 Installation instructions reverse osmosis installation LK 120....................................................................................................... 14
4.3.2 Instructions for installing a bypass ................................................................................................................................................................... 16
Repairs and maintenance....................................................................................................................................................................................... 17
4.4.1 Maintenance with service subscription........................................................................................................................................................ 17
4.4.2 Repairs and replacement of parts.................................................................................................................................................................... 17
4.4.3 Maintenance of the pressure vessel (if installed) .................................................................................................................................. 18
4.4.4 Troubleshooting .............................................................................................................................................................................................................. 18
5SPECIFICATIONS.............................................................................................................................................................................................................................. 19
Applied guidelines and standards ................................................................................................................................................................... 19
6CE-TYPE SHIELD............................................................................................................................................................................................................................... 19

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PREFACE
This document is part of the product. Keep the manual in a safe place and keep a copy near the installation.
The manual contains information that is necessary for the safe operation and maintenance of the
installation. If the installation is transferred to a new owner, the manual must also be provided to the new
owner. A new copy of this manual can be obtained from the manufacturer.
HOW TO USE THIS MANUAL
The instructions in this documentation are classified according to the type of user of the product. In
chapter 2, is to specify which there are demands to the various users.
The following names are used:
User:
The collective name for everyone who works on or with the product.
Operator: This is the person who uses the product every day.
Chapters that must be read: 1 “Introduction”, 2 “Safety” and 3 “How to
operate the installation”.
Service personnel: Persons with the training, experience and resources that are required for
the work activities described.
Chapters that must be read: ALL
Specialised service
personnel:
Persons employed by the manufacturer who have the training, experience
and resources required for the work activities described.
Chapters that must be read: ALL
Safety official: The person who is responsible for labour conditions on the user's site.
Unless someone else was appointed, this will be the employer himself.
Chapters that must be read: 2 “Safety” and 4 “Installation, commissioning
and maintenance”.
Product:
The product manufactured by Lubron Waterbehandeling B.V., described in
this document under “Product Identification" and indicated on the type
shield.
Any tasks not described in this documentation must be done by the manufacturer’s personnel. Exceptions can
be made, but only after consulting with .
The illustrations included in the text of this documentation are only for reference. They are only intended to
illustrate the text, for example to clarify the position and function of the controls or parts. The actual design
and dimensions may differ.

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WARNINGS IN THIS DOCUMENT
WARNING!
A warning draws attention to possible dangerous situations that could
cause serious injuries or even death.
ATTENTION!
This warning draws attention to possible situations that could result in
damage to the installation.
HINT!
Hints give you important information that is useful during installation,
operation and maintenance of the installation.
HINT!
Read this manual carefully before you use the installation and always keep
a copy of the manual close to the installation.
ATTENTION!
Installation, operation and maintenance may only be done by qualified
personnel.
HINT!
Make sure the operational conditions of the installation (flows, pressures,
water quality, and power supply) are within the limits of the technical
specifications.
Lubron UK Limited guarantees correct operation of the installation when original components are used. Al-
ternative components may only be used after explicit approval from Lubron.

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SERVICE AND INFORMATION
For more information, please contact:
The
Netherlands
Lubron Waterbehandeling B.V.
Me
chelaarstraat 38
4903 RE Oosterhout (NB)
Postbus 540
4900 AM Oosterhout (NB)
Tel.:
[phone]
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United Kingdom
Lubron UK Ltd
8 Challenge Way
Hythe
Hill, CO1 2LY
Tel.:
[phone]
WWW.LUBRON.CO.UK
Belgium
Lubron Belgium B.V.B.A.
Rijksweg 53
B
-2870 Puurs
Tel.:
[phone]
WWW.LUBRON.BE
Germany
Lubron
Wasseraufbereitung GmbH
Bahnhofstraße 39
D
-71691 Freiberg am Neckar
Tel.:
[phone]
WWW.LUBRON.DE

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WARRANTY AND LIABILITY
Warranty
The following warranty conditions apply, unless agreed otherwise in writing.
The manufacturer provides the first user with a warranty for a period of 12 months after delivery.
Defects must be reported to the manufacturer before the warranty period expires.
The warranty applies to defects that:
−Occur during normal use of the product.
−Are caused by faulty construction or materials.
−Are caused by inadequate expertise by the manufacturer.
The warranty is void if defects are caused by:
−Normal wear and tear.
−Unskilled or incorrect use.
−Use of consumables other than those prescribed.
In case of defects, the manufacturer will:
−Replace the parts; the manufacturer becomes the owner of the replaced parts.
−Repair the defects.
−Find a replacement or other solution if repair is not reasonably possible.
The customer must give the manufacturer the opportunity to remedy any defects.
The warranty conditions of the relevant supplier apply to all components from third parties. The warranty
period for third party components may differ from what is indicated above.
The manufacturer reserves the right to change his products without prior written notice.
Liability
The “Warranty and Liability conditions”, as included in the "General Delivery and Payment Conditions" of
Lubron UK Limited” apply, unless agreed otherwise in writing.
We draw attention to the following restrictions in the liability:
The manufacturer is not liable for unsafe situations, accidents or damage that results from ignoring the
warnings or instructions shown on the product or in this documentation. Such as:
Unskilled or incorrect use or maintenance.
Use for other purposes or under other conditions than shown in this manual.
The use of parts other than those prescribed.
Repairs made without the manufacturer's permission.
Modifications to the product, including:
−Modifications to the controls.
−Welding, mechanical adaptations.
−Extensions to the product or the controls.
The manufacturer is also not liable:

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If the customer has not complied with all his obligations (financial and otherwise) to the
Manufacturer.
For consequential damage from breakdowns or defects to the product (for example damage to products
(to be processed), business interruption, delays, etc.).

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1INTRODUCTION
Purpose and operation of the reverse osmosis installation
This very compact installation was developed specially to provide a glass washing machine with completely
pure water during the rinsing cycle. This prevents streaking on the glassware when drying.
The installation purifies water to a higher quality. The water is desalinated according to the principle of
reverse osmosis. The characteristic of osmosis is that two liquids which are separated by a semi-permeable
membrane or cell wall attempt to achieve an equal salt concentration. This process frequently occurs in
nature.
This principle of operation can be reversed, which is why we call it reverse osmosis. A mechanical force
(higher operating pressure) must be applied on the concentrate-side (saltwater) of the membrane for this to
happen. The semi-permeable membrane will only allow pure water (permeate) to pass as a result of this
pressure. The physical and chemical quality of this purified water is high and over 98% of all the salts are
removed. Some of the reject flow (high salt concentration) is re-circulated over the membrane and reused to
increase the yield of the system. Only a small part of the concentrate goes to the sewer.
Reverse osmosis is generally recognised to be a clean, environmentally friendly method of desalination.
Because of these benefits, this technique has been used for many years in a wide range of applications.
The LK 120 is suitable for both private and business use.
Accessories
The following (parts) or tools are supplied separately with each unit. Make sure everything is present.
This user documentation.
Drain hose Ø 8 mm.
Connecting hose ¾ " synthetic, 1.5 metres.
Power cable.
Elbow adapter for drain hose 6-8 mm.

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2SAFETY
Preface
This product was designed and built in such a way that it can be safely used and maintained. This applies to
the use, the conditions and instructions as described in this documentation. It is therefore imperative that
everyone who works with or on this machine reads this documentation and follows the instructions. When
used professionally, it is the responsibility of the employer that these instructions are made known and
observed.
Extra safety precautions can be prescribed by the company or the country where the product is in use. They
may relate particularly to labour conditions in the operating phase. This documentation does not show how
they should be observed but the necessary information about the product is provided. When in doubt,
consult the responsible safety official.
This documentation distinguishes between normal use (see chapter 3 “How to operate the installation”) and
other activities (see chapter 4 “Installation, commissioning and maintenance”) of the product. This is because
the requirements for service personnel are different from those for operators, especially regarding safety.
Simple maintenance work in the operating instructions can be carried out by the operators. Work not
described in the operating instructions may only be carried out by skilled personnel.
Safety rules
The following general safety rules apply:
The safety of the product could decrease from use over time. Make sure that it is adequately
maintained.
Do not use the product if safety components are damaged or do not work properly. Make sure that any
failing safety component is repaired before you operate the equipment.
Special safety rules for relevant work are included in the instructions. At all times, pay special
attention to:
Live parts.
Parts under pressure.
Users
2.3.1 Operators (level 1)
The product may only be operated by adults who are familiar with and abide by the contents of chapters
1 “Introduction”, 2 “Safety” and 3 “How to operate the installation” in this documentation. Special training is
not required.
2.3.2 Maintenance personnel (level 2)
Service personnel must be aware of the extra risks entailed in the work they carry out. As well as the

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requirements mentioned in Operators (level 1) above, the following is required:
Training or knowledge in the relevant skill at Intermediate Technical Level,
Experience in servicing and/or maintaining machines,
Availability of the correct resources (i.e. tools, measuring equipment).
2.3.3 Specialised maintenance personnel (level 3)
Personnel employed by the manufacturer, for whom the same requirements apply as for Maintenance person-
nel (level 2) and; who have extensive experience in servicing this type of machines.
Personal protective equipment
There is no special personal protective equipment required for operation and maintenance of the installa-
tion.
Visible warnings on the product
Pictograms and texts on the product, warning for dangers, must always be clearly visible. Replace any missing
warnings.
The hazards involved are described in more detail in the installation, operating and maintenance instructions.
Hazardous substances and the environment
2.6.1 Hazards for health and environment
WARNING!
The bacteriological quality of the permeate produced by the reverse osmosis
system cannot be guaranteed. This means the permeate produced is non-po-
table.
2.6.2 Disposal of the product
At the end of the products life, please follow local legislation and regulations for disposal of the
product. Only commonly known products were used in the manufacture of the product. The waste pro-
cessing methods for the product were known at the time of manufacture and no special risks to personnel
charged with this task were known.
3HOW TO OPERATE THE INSTALLATION
Make sure you have read and understand the information in Chapter 2, SAFETY before you operate the re-
verse osmosis installation.
This chapter contains information for operators as described in paragraph 2.3.1. Operators are forbidden to do
any task that is not described in this chapter.

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Operation of the reverse osmosis installation
Process diagram (P & ID) LK 120
Through an (optional, not shown) bypass valve the entire installation can be cut off from the water supply
and untreated water can be supplied to the users. See §4.3.2 “Instructions for installing a bypass”.
Symbol
Description
01 Solenoid valve
PS-01 Pressure switch input pressure
P-01 High pressure pump
PI-01 Pressure gauge operating pressure
M-01 Membranes (4x)
02 Mixing valve
PS-02 Pressure switch output pressure
If the pressure on the output side decreases to below 1.5 bar, pressure switch PS-02 will start the RO-unit. So-
lenoid valve (01) opens and the pump starts immediately afterwards. Input water (either untreated or sof-
tened water) flows via the solenoid valve (01) to the high-pressure pump (P-01). The pressure switch (PS-01)
measures the pressure of the incoming water. If the pressure of the input water is below 0.5 bar, switch PS-01
will cause a “low pressure” alarm This will stop the system, to prevent damage to the pump by dry running.
The high-pressure pump (P-01) pumps the water through the reverse osmosis membranes (M-01). The pres-
sure applied to the membranes can be read on the pressure gauge (PI-01). The pure water (permeate)
leaves the device via the outgoing pipe (permeate connection). The concentrate (or reject) containing
supply permeate
By a third party
By a third party
By a third party

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dissolved salts is discharged via the sewer connection.
If the pressure in the outgoing pipe measured by PS-02 reaches 2.5 bar, the pump will stop, but valve 01 will
remain open. After one minute, solenoid valve (01) will also close. In this minute the membranes are rinsed
with feed water to prevent lime deposits (so-called “scaling”) on the membranes and prolong their lifetime.
Use mixing valve (02) to mix a certain amount of reject water with the permeate, when required. As a
standard the reverse osmosis installation LK 120 is delivered with the mixing valve (02) closed.
Control of the reverse osmosis installation
Pressure switch PS-02 will automatically start the reverse osmosis system if water is required. When
demand stops the unit switches off automatically. With the switch on the back side of the device (see
picture on page 15) you can switch the unit off completely.
4INSTALLATION, COMMISSIONING AND MAINTENANCE
The jobs described in this chapter may only be carried out by service staff as described in
§2.3.2 “Maintenance personnel”.
General
WARNING!
Make sure the power supply is switched off and there is no water pressure, before
you start to do any work on the installation.
Storage
Store the unit in a cool, dry area and protect against frost. After prolonged storage the product must be in-
spected by service personnel before use. When in doubt, contact Lubron services department.
WARNING!
Condensation may occur if the product is moved from a cold to a warm space. This
may occur in the internal electrical parts as well. Immediate use could damage the
product and endanger the operator. Allow the product to acclimatise before starting.
Installation and commissioning
The device must be used within the following operating limits:

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The maximum allowed input water temperature is 25 ºC.
The maximum allowed input water pressure is 4.0 bar.
The ambient temperature must be between 5°C and 35°C.
The maximum allowed supply pressure is 4.0 bar. Install a pressure reducer in the supply pipe if the supply
pressure is too high.
4.3.1 Installation instructions reverse osmosis installation LK 120
Place the reverse osmosis installation LK 120 in a dry place, near a grounded power point and a sewage drain.
The water-side connection is protected against dust upon delivery. Protective caps are attached to the feed
water inlet and permeate outlet. A plastic elbow is in the drain outlet. A second outlet is closed with a grey
plug. Make sure to leave that plug in place.
Connect the drain hose. Push the grey release ring back with a screwdriver or a wrench and remove the red
plastic plug from the elbow. If you pull out the plug without pushing the release ring, this will damage the
seal. Press the 8 mm drain hose firmly into the knee and put the outlet side of the tube into the sewer drain.
To prevent damage to the seals: Always use a wrench or a screwdriver to push back the grey release ring if
the hose must be removed or replaced.
ATTENTION!
To prevent damage to the seals: Always use a wrench or a screwdriver to push
back the grey release ring if the hose must be removed or replaced.

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Before you start the installation, make the necessary connections as shown in the above picture. Connect the
installation electrically, open the water supply and then switch on the installation. Make sure there are no
leaks.
Pressure surges (water hammer) can occur in the pipework when installed before a dishwasher,
washing machine or directly in front of a single-handle mixing tap,
etc. Such pressure surges can cause damage to the reverse
osmosis installation. Install a water hammer arrestor in the pipe
Acces for membrane exchange
Operating pressure
In operation light
Alarm light
Power supply
Input water
Permeate
Drain
On/off switch

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directly after the LK-unit.
When installing, consider the possibility of leaks. Do not put the appliance directly next to or above anything
that could be seriously damaged by water or take precautions to limit any damage to a minimum.
ATTENTION!
The warranty regarding leaks in the system will be void if the necessary
precautions, as described above, are not taken.
4.3.2 Instructions for installing a bypass
A valve can be installed to temporarily bypass the osmosis installation, should there be a problem with the
installation. To installing this bypass valve, connect the supply line and permeate line to the bypass as shown
in the drawing below.
The reverse osmosis installation is connected to the black plastic ¾” connections. Pay attention to the
arrows that indicate the direction of flow of the water for a correct operation of the bypass.
If there is a pressure vessel in the system, this vessel must be installed between the bypass and the
consumer.
Bypass valve
Bypass in normal position (use RO)
Bypass in bypass position

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Repairs and maintenance
4.4.1 Maintenance with service subscription
Periodic inspection of your equipment reduces the chance of failures. That is why we developed a service
subscription that is specifically aimed at reverse osmosis installations. This subscription means that once or
twice a year a specialised Lubron engineer will inspect and maintain the system. Of course, we keep a
detailed administration of the inspections carried out. Ask your equipment supplier or contact the Lubron
service department for the available options.
4.4.2 Repairs and replacement of parts.
During the warranty period, repairs may only be carried out under the direction of the manufacturer. All parts
that are replaced must at least meet the specifications of the original parts.
The membranes will wear over time, which reduces the water quality. This means the membranes must be
replaced periodically.
Spare part overview
The figure and table below show the available spare parts.
Produced water
(permeate)
Water supply
(input)

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Item #
Description
Service ordernr.
1
Membrane housing, 4-fold
F4800100
2
Membrane, 150 GPD (4 pcs)
F4800101
3
Pressure gauge
F4800106
4
Pump
F4800102
5
Switch display
F4800107
6
Pressure switch input pressure (minimum 0.5 bar)
F4800104
7
Solenoid valve
F4800105
8
Pressure switch output pressure (maximum 2.5 bar)
F4800103
4.4.3 Maintenance of the pressure vessel (if installed)
When installing or replacing the pressure vessel, please make sure to set the correct pre-pressure before you
start operation again. The initial pressure is set while the system is not under pressure. To drain the pressure
from the system, switch off the osmosis installation, and empty the pressure vessel. Use the filling valve on
top of the pressure vessel to set the correct pre-pressure. The pre-pressure must be 1,5 bar for
optimum operation. The pressure vessel is already set to the correct pressure at Lubron.
4.4.4 Troubleshooting
Problem
Possible cause
Remedy / action
Reverse osmosis
installation does not
operate.
Power supply failure.
Inspect the power supply.
Input valve failure.
Inspect the electrical connection of the sole-
noid valve. Replace the valve if
necessary.
Timer failure.
Inspect the time and replace it if necessary.
Alarm: slow (2 sec)
sound and light signal
Low input water pressure. Make sure the water drain is completely
open. This alarm reset itself after he r set by
the water pressure. By alternately switching
on / off of the alarm, during use, the capacity
of the can to e supply line are insufficient.
The service helpdesk can be reached from 8:30 to 17:00 on telephone number [phone].

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5SPECIFICATIONS
Permeate capacity 120 l/h at 15°C
Operating temperature 5 to 35°C
input water temperature 25 °C
Input water pressure Between 2 and 4 bar
Required supply water flow 275 l/h
Water input connection ¾” thread hose connection
Drain connection 8mm hose
Permeate connection ¾” thread hose connection
Power supply 230V, 50Hz, 250W
Applied guidelines and standards
This machine is CE marked. This means that this machine meets the European directives on safety and
health. The applied standards are indicated in the "Declaration of Conformity".
6CE-TYPE SHIELD
Every reverse osmosis installation is provided with a CE type shield, on which the following information is
stated:
Description :
Details of this machine:
Type
Type
LK 120
Serial no.
Serial Number
Year of construction
Construction year
Voltage
Required voltage
230V, 50Hz
Max. pressure
Maximum pressure of the water input
4,0bar