Stulz UltraWater Series User manual

STULZ the natural choice
STULZ UltraWater®
3 Stufen-Umkehrosmosesystem
Version 05-2012
Technical Manual Humidi cation
Technical Manual
Humidi cation
STULZ UltraWater
3-stage reverse osmosis systems
Version 01-2015
1000645 / EN
Translation of the original User Guide
– Read carefully before use-
– Keep in a safe place for future reference-

Dear Customer,
Many thanks for choosing to buy a STULZ product. STULZ has been a purveyor of
sophisticated technical solutions for comfort and precision air conditioning applications
since 1947.
Hotline
If you have any questions or problems regarding our products, please get in touch via
our hotline on [phone] or at [email protected].
Technical Support
For technical problems, please contact our Technical Support on
[phone].
Current updates to technical documentation
You can nd the latest documents and brochures at:
www.stulz.de/e-stulz
Manufacturer's address
STULZ GmbH
Air Conditioning and Humidifying Systems Division
Holsteiner Chaussee 283
D-22457 Hamburg
Germany

STULZ UltraWater 3-stage reverse osmosis system SUW
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Contents
1. INFORMATION ON THIS GUIDE ......................................................5
1.1. Using the guide ...............................................................5
1.2. Abbreviations ................................................................5
1.3. Nomenclature ................................................................6
1.4. Liability claims for defects .......................................................6
1.5. Exclusion of liability ............................................................6
1.6. Copyright notice ..............................................................6
1.7. Product names and trademarks ..................................................6
1.8. Technical Support .............................................................6
1.9. Hotline ......................................................................6
2. SAFETY INSTRUCTIONS ...........................................................7
2.1. Preliminary comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2. Proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3. Unauthorized operating practices .................................................7
2.4. Personnel qualication .........................................................8
2.5. Danger if safety instructions are not complied with ....................................8
2.6. Safe working .................................................................8
2.7. Safety instructions for the plant owner / operator ......................................8
2.8. Safety instructions for maintenance, inspection and installation work .....................9
2.9. Unauthorized modication and spare parts production .................................9
2.10. Preventive measures against water damage ........................................9
2.11. Spare parts ..................................................................9
3. TRANSPORT / STORAGE ..........................................................12
4. MECHANICAL REQUIREMENTS .....................................................12
5. APPLICATION LIMITS .............................................................12
6. ABOUT THIS DEVICE .............................................................13
6.1. The principle of the reverse osmosis system .......................................14
6.2. Product package .............................................................15
6.3. Rating plate .................................................................16
6.4. Technical data ...............................................................17
6.5. Application limits .............................................................17
6.6. Filter service life .............................................................18
6.7. Factory settings ..............................................................18
6.8. Device construction ...........................................................19
6.8.1. UltraWater 120 .......................................................19
6.8.2. UltraWater 400 .......................................................20
7. INSTALLATION ...................................................................21
7.1. Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7.2. Connection diagram ..........................................................22
7.2.1. Connecting the reverse osmosis water (D) .................................24
7.2.2. Connecting the waste water (B) ..........................................25
7.2.3. Connecting to the pressure tank (C) ......................................26
7.2.4. Connecting the water supply (A) .........................................27
7.3. Installing the membrane .......................................................28
7.4. Tightening the lter housing ....................................................29
7.5. Electrical connection ..........................................................30
7.6. Wall-mounted installation ......................................................31

STULZ UltraWater 3-stage reverse osmosis system SUW
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8. START-UP .......................................................................32
9. OPERATION .....................................................................34
10. SHUTTING DOWN THE SYSTEM ....................................................35
11. DISPOSAL ......................................................................35
12. MAINTENANCE ..................................................................36
12.1. Replacing the lters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
12.2. Replacing the membranes .....................................................38
12.3. Replacing the ow restrictor ....................................................39
12.4. Inspecting the pressure tank ....................................................39
12.5. Checking the pure water quality and throughput ....................................40
13. TROUBLESHOOTING .............................................................41
14. SPARE PARTS LISTS ..............................................................43
14.1. Spare parts list for SUW 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
14.2. Assembly drawing of SUW 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
14.3. Spare parts list for SUW 400. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
14.4. Assembly drawing of SUW 400. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
15. CE-CERTIFICATION ...............................................................47
16. MAINTENANCE PLAN .............................................................49

STULZ UltraWater 3-stage reverse osmosis system SUW Information on this guide
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1. INFORMATION ON THIS GUIDE
This guide is part of the product package. It must be made accessible to all persons performing assembly,
installation, start-up and maintenance work on the product.
1.1. Using the guide
This guide contains basic instructions to be followed during erection, operation and maintenance. The guide
is intended for all persons performing assembly, installation, start-up and maintenance work on the product.
It must always be kept in the same place as the product.
Make sure that people responsible for operating the product and all persons working on the product have
fully read and understood this guide. Please contact the Service hotline if you have any queries.
As well as the general safety instructions contained in this section, please also pay attention to the special
safety notes in the other sections. Furthermore, all local statutory safety measures must be observed.
1.2. Abbreviations
Table 1: Abbreviations
Abbreviation Name Explanation
A Ampere SI unit: electrical current
DC Direct current ─
GND Ground Ground wire or signal ground
min Minute SI unit
NNeutral wire ─
NC Normally closed Relay contact
NO Normally open Relay contact
sSecond SI base unit
VVolt SI unit: electrical voltage
°C Celsius Unit of temperature
μS/cm Micro-Siemens per centimeter Unit for the conductivity of water
°dH German degrees of hardness Unit of water hardness
SDI Silt Density Index ─
TrinkwV Trinkwasserverordnung German Drinking Water Regulations
PE Polyethylene Type of plastic
WxHxD Width x height x depth Unit of measurement
DixH Diameter x height Unit of measurement
l/h Liters per hour Flow rate
l/d Liters per day Flow rate
TFC Thin lm composite Type of membrane
Item Item number Item in a drawing
STU Start-up ─

Information on this guide STULZ UltraWater 3-stage reverse osmosis system SUW
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1.3. Nomenclature
Table 2: Nomenclature
Full name Name in this document
STULZ UltraWater SUW
STULZ UltraWater 120 basic SUW 120
STULZ UltraWater 400 basic SUW 400
1.4. Liability claims for defects
Following the instructions in the Technical Manual is a prerequisite for trouble-free operation of the STULZ
UltraWater and for eventual claims for defects.
Read the Technical Manual before working with the product.
1.5. Exclusion of liability
Compliance with the installation and user guide is a prerequisite for safe operation of the product, and for
the achievement of the stated product characteristics and performance features. STULZ shall not be liable
for any damage to persons or property or any nancial loss resulting from non-compliance with the Technical
Manual. In such cases, all liability for material defects is excluded.
1.6. Copyright notice
© 2014. STULZ GmbH. All rights reserved.
All reproduction, editing, distribution and other form of use of this Manual, in whole or is part, is prohibited.
1.7. Product names and trademarks
STULZ UltraWater is a registered trademark of STULZ GmbH. The product names contained in this Technical
Manual are brand names or registered trademarks of the products bearing these names.
1.8. Technical Support
Phone Technical Support on:
Tel.: [phone]
1.9. Hotline
Phone the hotline on:
Tel.: [phone]
e-mail: [email protected]

STULZ UltraWater 3-stage reverse osmosis system SUW Safety instructions
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2. SAFETY INSTRUCTIONS
Please note the following basic safety instructions. The safety instructions are intended to prevent personal
injury and damage to property. The system operator must ensure that the basic safety instructions are noted
and adhered to. Make sure that the system operator and all persons who work on the system on their own
responsibility have fully read and understood the documentation. If anything is unclear or you require ad-
ditional information, please ring STULZ Technical Support.
• Non-compliance with the safety instructions can result in danger to personnel, to the environment and to
the system. Failure to comply with the safety instructions will result in the loss of any claims for damages.
• Pay attention to the safety instructions set out in this technical documentation, the applicable national
health and safety regulations and company work, operating and safety instructions.
• Safe operation of the system is only ensured if it is used in accordance with its intended use. The limit
values set out in the technical data must never be exceeded.
2.1. Preliminary comments
The basic safety instructions below apply to the STULZ UltraWater. Pay attention to the additional warning
notes in the individual sections of this technical document.
2.2. Proper use
STULZ reverse osmosis systems are approved solely for the preparation of particle-free water. Depending
on the type of system, the untreated water may have a low salt content (tap water and surface water has
up to approx. 1000 mg/l). If STULZ systems are used for water of a different quality, it is essential that you
rst contact STULZ. Generally, drinking water that conforms to the German Drinking Water Regulations is
suitable for use in reverse osmosis systems. In some cases (e.g. if the Silt Density Index is higher than 3),
suitable pretreatment (softening, hardness stabilization) must be performed beforehand.
The STULZ UltraWater is intended solely for indoor use, and may only be used with compatible products.
Any other use besides or beyond this shall be regarded as improper use. STULZ cannot be held liable for
damages resulting from the above. The plant operator is the sole bearer of the risk.
The STULZ UltraWater may only be used in accordance with the instructions in the technical documentation
from STULZ.
2.3. Unauthorized operating practices
Safe operation of the supplied system is only ensured if it is used correctly in accordance with the “Proper
use” section of the Technical Manual. The limit values set out in the technical data and test record must never
be exceeded under any circumstances.
The STULZ UltraWater is designed for technical use, not for the treatment of drinking water!

Safety instructions STULZ UltraWater 3-stage reverse osmosis system SUW
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2.4. Personnel qualication
All electrotechnical work must be performed exclusively by authorized and trained specialist personnel.
Specialist personnel within the context of this documentation are persons who are familiar with the electrical
installation, start-up, maintenance and repair of the system, and are in possession of the following qualica-
tions:
• Successful, certied completion of training in electrical engineering
• Familiarity with the technical documentation.
All work in relation to operation and use must be performed exclusively by authorized and trained specialist
personnel. Specialist personnel within the context of this documentation are persons who are familiar with
the operation and use of the system, and are in possession of the following qualications:
• Successful, certied completion of training in electrical engineering
• Familiarity with the technical documentation.
All work in relation to transport and storage must be performed exclusively by persons who have received
appropriate instruction.
The plant operator must ensure that all maintenance, inspection and installation work is carried out by
authorized and qualied specialist personnel who have been briefed by thoroughly studying the technical
documentation.
2.5. Danger if safety instructions are not complied with
Non-compliance with these safety instructions can result in danger to persons, to the environment and to
the system. Failure to comply with the safety instructions may result in the loss of any claims for damages.
Non-compliance may involve the following risks, for example:
- Failure of important system functions
- Failure of prescribed maintenance and repair methods
- Risk to persons due to electrical, chemical and mechanical phenomena.
2.6. Safe working
The safety instructions set out in this Technical Manual, the applicable national health and safety regulations
and any company work, operating and safety instructions must be observed.
2.7. Safety instructions for the plant owner / operator
If protection against accidental contact with moving parts is installed, it must not be removed while the sys-
tem is in operation. Dangers arising from electrical energy must be excluded (details on this can be found in
the specications of the VDE, for example, or obtained from local energy supply companies).

STULZ UltraWater 3-stage reverse osmosis system SUW Safety instructions
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2.8. Safety instructions for maintenance, inspection and installation work
The plant operator must ensure that all maintenance, inspection and installation work is carried out by
authorized and qualied specialist personnel who have been briefed by thoroughly studying the installation
and user guide.
The system must be stationary and switched off before any work is carried out. It is essential that the
procedure for shutting down the system, described in the installation and user guide, is complied with. All
safety and protective equipment must be reinstalled or re-enabled immediately upon completion of the
work.
Please note the points in the "Start-up" section before starting up the system.
2.9. Unauthorized modication and spare parts production
The system may only be converted or modied following consultation with the manufacturer. Genuine
spare parts and accessories authorized by the manufacturer are a guarantee of safety. Use of different
parts may void any liability for claims arising from possible consequences.
2.10. Preventive measures against water damage
All water-based technical systems can cause water damage if they suffer a fault. Before installation, exam-
ine to what extent other plants or buildings must be protected against water damage. A central oor drain
or leakage warning system can prevent more serious damage.
2.11. Spare parts
• We recommend the use of genuine spare parts. Genuine spare parts and spare parts/accessories ap-
proved by STULZ GmbH are a guarantee of safety.
• The spare parts list can be found in the following section: Spare parts. To order spare parts, call the
hotline or your specialist retailer.

Safety instructions STULZ UltraWater 3-stage reverse osmosis system SUW
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Please read this user guide carefully and observe the instructions before installing and operating
your track humidifying system.
General
This user guide contains basic instructions to be followed during installation, operation and maintenance.
It must therefore be read by installation staff and the responsible specialist personnel/plant operator before
installation and initial start-up. It must always be kept in the same place as the system. As well as the gene-
ral instructions contained in this “Safety instructions” section, please also pay attention to the special safety
instructions included in the other sections.
Personnel qualication and training
The personnel in charge of operation, maintenance, inspection and installation must be properly qualied
for this work.
Risks of non-compliance with the safety instructions
Non-compliance with these safety instructions can result in danger to personnel, to the environment and to
the system. Failure to comply with the safety instructions may result in the loss of any claims for damages.
Safe working
The safety instructions set out in this user guide, the applicable national health and safety regulations and
company work, operating and safety instructions must be observed.
Safety instructions for maintenance, inspection and installation work
The plant operator must ensure that all maintenance, inspection and installation work is carried out by autho-
rised and qualied specialist personnel who have been thoroughly briefed by studying the user guide.
The system must be stationary and switched off before any work is carried out. It is essential that the proce-
dure for shutting down the system, described in the user guide, is complied with.
The system must be disconnected from the power for any maintenance work and a warning sign afxed to
prevent it from being inadvertently restarted. The system must be checked to ensure it is no longer carrying
voltage.
Unauthorised modication and production of spare parts
The system may only be converted or modied following consultation with STULZ. Original spare parts and
parts/accessories approved by STULZ are a guarantee of safety. Use of different parts may void any liability
for claims arising from any possible consequences.
Unauthorised operating practices
Safe operation of the system is only ensured if it is used in accordance with regulations and instructions. The
limit values set out in the technical data must never be exceeded.
This symbol indicates special measures or dangers that must be noted.
Customer service
Customer service ensures optimum operating reliability through preventive service and maintenance work
throughout the life of your system.
You can nd out about your nearest customer service agent from the manufacturer of your system at any
time.