Stiebel Eltron SHU 5 SLi comfort SMALL WATER
HEATER User Manual

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide

GUARANTEE
ENVIRONMENT AND RECYCLING
INSTALLATION TEMPLATE SHU 5 SLI | SHU 5 SL GB (INSIDE THESE INSTRUCTIONS)
SPECIAL INFORMATION
– The appliance may be used by children aged 8 and older and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.
– In the case of permanent connection to the power supply via a junction box, ensure that the appliance can be isolated from the mains by an isolator that disconnects all poles with at least 3 mm contact separation.
– The power cable may only be replaced (for example if damaged) by a qualified contractor authorised by the manufacturer, using an original spare part.
– Secure the appliance as described in chapter “Installation / Installation”.
– Observe the maximum permissible pressure (see chapter “Installation / Specification / Data table”).
– The appliance is pressurised. During the heat-up process, expansion water will drip from the safety valve.
– Regularly activate the safety valve to prevent it from becoming blocked, e.g. by limescale deposits.
– Drain the appliance as described in chapter “Installation / Maintenance / Draining the appliance”.
– Size the drain pipe so that water can drain off unimpeded when the safety valve is fully opened.
– Fit the drain pipe of the safety valve with a constant downward slope and in a room free from the risk of frost.
– The safety valve drain must remain open to the atmosphere.

1. General information

The chapters “Special Information” and “Operation” are intended for users and qualified contractors. The chapter “Installation” is intended for qualified contractors.
Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote Read these instructions carefully before using the appliance and retain them for future reference. Pass on the instructions to a new user if required.

1.1 Safety instructions

1.1.1 Structure of safety instructions

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Warning or Caution iconKEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
▶ Steps to prevent the risk are listed.

1.1.2 Symbols, type of risk

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Symbols, type of risk

1.1.3 Keywords

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Keywords

1.2 Other symbols in this documentation

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Other symbols in this documentation Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Other symbols in this documentation

▶ This symbol indicates that you have to do something. The action you need to take is described step by step.

1.3 Units of measurement

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote
All measurements are given in mm unless stated otherwise.

2. Safety

2.1 Intended use

This sealed unvented (pressurised) appliance is intended for heating domestic hot water. You can use the appliance to supply one or several draw-off points. This appliance is intended for domestic use. It can be used safely by untrained persons.

The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used in the same way.

Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any accessories used is also part of the correct use of this appliance.

2.2 Safety instructions

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Safety instructions

Where children or persons with limited physical, sensory or mental abilities are allowed to use this appliance, we recommend a permanent temperature limit. A qualified contractor can set this limit.

Material losses
If the drain pipe of the safety valve is sealed, the expansion water may cause water damage.
▶ Never close the drain pipe.

Material losses
The user should protect the appliance and its tap against frost.

2.3 Test symbols

See type plate on the appliance.

3. Appliance description

The sealed unvented (pressurised) appliance constantly maintains the water content at the pre-selected temperature. The appliance switches on automatically as soon as its temperature falls below the set value. Subject to season, varying cold water temperatures can result in different maximum mixed water and outlet volumes.

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote
A qualified contractor can set a temperature limit on the appliance (see “Installation / Settings / Setting the temperature limit”).

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote
The appliance is under mains water pressure. The water volume increases as the cylinder is being heated up. During this process, expansion water drips out through the safety valve. This is a necessary and normal process.

3.1 Operation

You can set any required DHW outlet temperature at the temperature selector. The heat-up indicator illuminates during the heat-up process.

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Operation

Depending on the system, the actual temperatures may vary from the set value.
°C = Cold. On this setting, the appliance is protected from frost. The tap and the water line are not protected.
Eco = Recommended energy saving setting (approx. 60 °C), minor scaling
82 = Highest selectable temperature

4. Cleaning, care and maintenance

▶ Never use abrasive or corrosive cleaning agents. A damp cloth is sufficient for cleaning the appliance.
▶ Check the taps regularly. Limescale deposits at the tap outlets can be removed using commercially available descaling agents.
▶ Have the function of the safety assembly checked regularly by a qualified contractor.

Almost every type of water will deposit limescale at high temperatures. This settles inside the appliance and affects both the performance and service life. The heating elements should therefore be descaled if necessary. A qualified contractor who is aware of the local water quality will tell you when the next descaling is due.

5. Troubleshooting

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Troubleshooting

6. Safety

Only a qualified contractor should carry out installation, commissioning, maintenance and repair of the appliance.

6.1 General safety instructions

We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

6.2 Instructions, standards and regulations

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote
Observe all applicable national and regional regulations and instructions.

6.3 Information on the safety assembly

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Information on the safety assembly

If using a plastic stench trap (e.g. DN 40 for the sink), there is no need for the SVMT immersion pipe. Connect the overflow funnel, e.g. using the washing machine connection.

7. Appliance description

The sealed unvented (pressurised) appliance is only suitable for undersink installation. The appliance is intended for heating cold water and for supplying one or several draw-off points. The appliance may only be installed with pressure taps in conjunction with the SVMT safety assembly (see chapter “Installation / Appliance description / Required accessories”).

7.1 Standard delivery

Delivered with the appliance are the following:
– Wall mounting bracket

SHU 10 SLi
– Installation template

7.2 Required accessories

The following accessories are available for sealed unvented operation:
– SVMT safety assembly for undersink installation
– Water distribution tees

8. Preparation

Water installation
A safety assembly is required.

Taps/valves
Only install pressure taps in conjunction with the SVMT safety assembly.

8.1 Installation site

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Installation site

Always install the appliance vertically and near the draw-off point.

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Always install the appliance vertically and near the draw-off point

9. Installation

Material losses
When using plastic pipework, observe the extreme operating and fault conditions that can occur on the appliance (see chapter “Installation / Specification / Extreme operating and fault conditions”).

▶ To provide a supply to two washbasins, use the “water distribution tees” (see chapter “Installation / Appliance description / Required accessories”).
▶ Run the connections to the second tap on site, e.g. in 10 mm copper pipe.

9.1 Installing the safety assembly

▶ Fit the safety assembly in the cold water supply line of the appliance.
▶ Observe the information on the safety assembly (see chapter “Installation / Safety / Information on the safety assembly”).
▶ Observe the information in the safety assembly installation instructions.

9.2 Appliance installation

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Appliance installation

9.3 Water connection

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Water connection Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Water connection

Match up the colour coding on the water connections of the tap and the appliance: – R.h. side blue = “Cold water inlet” – L.h. side red = “DHW outlet”
▶ Secure the tap connections to the appliance.
Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Manual iconNote
Ensure that the water connections are not kinked during installation. Prevent any tensioning during installation.

9.4 Power supply

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Power supply

The following electrical connections are permissible:

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - The following electrical connections are permissible

10. Commissioning

WARNING ELECTROCUTION Commissioning may only be carried out by a qualified contractor in accordance with safety regulations.

10.1 Initial start-up

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Initial start-up

▶ Either open the DHW valve of the tap or set the mono lever mixer tap to “hot” until the water that flows out is free of air bubbles.
▶ Check the safety assembly. When purging, ensure that a full jet of water flows out.
▶ Insert the plug into the standard socket or set the fuse/MCB in the fuse box.
▶ Select a temperature.
▶ Check the entire hydraulic installation for tightness.

10.1.1 Appliance handover

▶ Explain the functions of the appliance to the user. Show the
user how to operate the appliance.
▶ Make the user aware of potential dangers, especially the risk
of scalding.
▶ Hand over these instructions and, if applicable, the instructions for any accessories.

10.2 Recommissioning

See chapter “Installation / Commissioning / Initial start-up”.

11. Settings

11.1 Setting the temperature limit

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Setting the temperature limit

Placing the limiting ring behind the temperature selector allows you to limit the setting range of the temperature selector to a specific maximum temperature.

▶ Turn the temperature selector to zero (fully anti-clockwise to “°C”).
▶ Pull off the temperature selector and the limiting ring.
▶ Push the limiting ring with the required maximum setting onto the controller shaft.
▶ Mount the temperature selector set to zero (°C).

12. Shutdown

▶ Isolate the appliance from the power supply by removing the plug or by tripping the MCB in the fuse box.
▶ Drain the appliance (see chapter “Installation / Maintenance / Draining the appliance”).

13. Troubleshooting

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Troubleshooting

13.1 Activating the high limit safety cut-out

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Activating the high limit safety cut-out

14. Maintenance

WARNING Electrocution Before any work on the appliance, disconnect all poles of the appliance from the power supply.
▶Dismantle the appliance for maintenance work.

14.1 Draining the appliance

WARNING Burns Hot water may escape during draining.
▶ Drain the appliance via its connectors.

14.2 Opening the appliance

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Opening the appliance

14.3 Descaling the appliance

▶ Remove the flanged immersion heater.
▶ Carefully tap the heating element to remove coarse limescale
deposits.
▶ Immerse the heating element up to the flange plate in descaling agent.

14.4 Checking the earth conductor

▶ Check the earth conductor (in Germany DGUV3 for example) across a water connector and the earth conductor contact of the power cable.

14.5 Replacing the power cable

The power cable must only be replaced by a qualified contractor with an original spare part. Alternatively, the H05VV-F3x1.0 cable may be used.

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Replacing the power cable
14.6 Positioning the temperature sensor in its protective pipe

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Positioning the temperature sensor

15. Specification

15.1 Dimensions and connections

SHU 5 SLi | SHU 10 SLi

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - SHU 5 SLi SHU 10 SLi Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - SHU 5 SLi SHU 10 SLi

SHU 5 SL GB 

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - SHU 5 SL GB

15.2 Wiring diagram

1/N/PE ~ 220 – 240 V

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Wiring diagram

15.3 Heat-up diagram

The heat-up period depends on the degree of scaling and residual heat. For the heat-up time for a cold water supply at 10 °C and a maximum temperature setting, see the diagram.

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Heat-up diagram

15.4 Country-specific approvals and certifications

The test symbols can be seen on the type plate.

15.5 Extreme operating and fault conditions

In the case of faults, a peak temperature of up to 105 °C may briefly occur in the system.

15.6 Details on energy consumption

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Details on energy consumption

15.7 Data table

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Data table Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Data table

Guarantee
The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only granted if the subsidiary has issued its own terms of guarantee. No other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in countries where we have no subsidiary to sell our products. This will not affect warranties issued by any importers.

Environment and recycling
We would ask you to help protect the environment. After use, dispose of the various materials in accordance with national regulations.

Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße 33 | 37603 Holzminden
Tel. 05531 702-0 | Fax 05531 702-480
[email protected]
www.stiebel-eltron.de

Verkauf Tel. 05531 702-110 | Fax 05531 702-95108 | info-[email protected]
Kundendienst Tel. 05531 702-111 | Fax 05531 702-95890 | [email protected]
Ersatzteilverkauf Tel. 05531 702-120 | Fax 05531 702-95335 | [email protected]

Australia
STIEBEL ELTRON Australia Pty. Ltd.
6 Prohasky Street | Port Melbourne VIC 3207
Tel. 03 9645-1833 | Fax 03 9645-4366
[email protected]
www.stiebel.com.au

Austria
STIEBEL ELTRON Ges.m.b.H.
Gewerbegebiet Neubau-Nord
Margaritenstraße 4 A | 4063 Hörsching
Tel. 07221 74600-0 | Fax 07221 74600-42
[email protected]
www.stiebel-eltron.at

Belgium
STIEBEL ELTRON bvba/sprl
‘t Hofveld 6 – D1 | 1702 Groot-Bijgaarden
Tel. 02 42322-22 | Fax 02 42322-12
[email protected]
www.stiebel-eltron.be

China
STIEBEL ELTRON (Tianjin) Electric Appliance
Co., Ltd.
Plant C3, XEDA International Industry City
Xiqing Economic Development Area
300085 Tianjin
Tel. 022 8396 2077 | Fax 022 8396 2075
[email protected]
www.stiebeleltron.cn

Czech Republic
STIEBEL ELTRON spol. s r.o.
K Hájům 946 | 155 00 Praha 5 – Stodůlky
Tel. 251116-111 | Fax 235512-122
[email protected]
www.stiebel-eltron.cz

Finland
STIEBEL ELTRON OY
Kapinakuja 1 | 04600 Mäntsälä
Tel. 020 720-9988
[email protected]
www.stiebel-eltron.fi

France
STIEBEL ELTRON SAS
7-9, rue des Selliers
B.P 85107 | 57073 Metz-Cédex 3
Tel. 0387 7438-88 | Fax 0387 7468-26
[email protected]
www.stiebel-eltron.fr

Hungary
STIEBEL ELTRON Kft.
Gyár u. 2 | 2040 Budaörs
Tel. 01 250-6055 | Fax 01 368-8097
[email protected]
www.stiebel-eltron.hu

Japan
NIHON STIEBEL Co. Ltd.
Kowa Kawasaki Nishiguchi Building 8F
66-2 Horikawa-Cho
Saiwai-Ku | 212-0013 Kawasaki
Tel. 044 540-3200 | Fax 044 540-3210
[email protected]
www.nihonstiebel.co.jp

Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36 | 5222 BH ‘s-Hertogenbosch
Tel. 073 623-0000 | Fax 073 623-1141
[email protected]
www.stiebel-eltron.nl

Poland
STIEBEL ELTRON Polska Sp. z O.O.
ul. Działkowa 2 | 02-234 Warszawa
Tel. 022 60920-30 | Fax 022 60920-29
[email protected]
www.stiebel-eltron.pl

Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street 4,
building 2 | 129343 Moscow
Tel. 0495 7753889 | Fax 0495 7753887
[email protected]
www.stiebel-eltron.ru

Slovakia
TATRAMAT – ohrievače vody s.r.o.
Hlavná 1 | 058 01 Poprad
Tel. 052 7127-125 | Fax 052 7127-148
[email protected]
www.stiebel-eltron.sk

Switzerland
STIEBEL ELTRON AG
Industrie West
Gass 8 | 5242 Lupfig
Tel. 056 4640-500 | Fax 056 4640-501
[email protected]
www.stiebel-eltron.ch

Thailand
STIEBEL ELTRON Asia Ltd.
469 Moo 2 Tambol Klong-Jik
Amphur Bangpa-In | 13160 Ayutthaya
Tel. 035 220088 | Fax 035 221188
[email protected]
www.stiebeleltronasia.com

United Kingdom and Ireland
STIEBEL ELTRON UK Ltd.
Unit 12 Stadium Court
Stadium Road | CH62 3RP Bromborough
Tel. 0151 346-2300 | Fax 0151 334-2913
[email protected]
www.stiebel-eltron.co.uk

United States of America
STIEBEL ELTRON, Inc.
17 West Street | 01088 West Hatfield MA
Tel. 0413 247-3380 | Fax 0413 247-3369
[email protected]
www.stiebel-eltron-usa.com

Stiebel Eltron SHU 5 SLi comfort SMALL WATER HEATER Installation Guide - Bar Code

Subject to errors and technical changes!

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