STIEBEL ELTRON DHB-E 11 SLi electronic, DHB-E 13 SLi electronic, DHB-E 18 SLi 25 A electronic, DHB-E 18/21/24 SLi electronic, DHB-E 27 SLi electronic Operation And Installation

BEDIENUNG UND INSTALLATION OPERATING AND INSTALLATION UTILISATION ET INSTALLATION GEBRUIK EN INSTALLATIE

OBSŁUGA I INSTALACJA OBSLUHA A INSTALACE

Elektronisch geregelter Durchlauferhitzer | Electronically controlled instantaneous

water heater | Chauffe-eau instantanés à régulation électronique | Elektronisch geregelde doorstromer | Elektronicznie regulowany przepływowy ogrzewacz wody | Elektronicky regulovaný průtokový ohřívač

» DHB-E 11 SLi electronic » DHB-E 13 SLi electronic » DHB-E 18 SLi 25 A electronic » DHB-E 18/21/24 SLi electronic » DHB-E 27 SLi electronic

electronic

°C

CONTENTS

SPECIAL INFORMATION

OPERATION

1. General information �� 20

1.1 Safety instructions �� 20

1.2 Other symbols in this documentation �� 20

1.3 Units of measurement �� 21

2. Safety �� 21

2.1 Intended use �� 21

2.2 General safety instructions ��21

2.3 Test symbols �� 21

3. Appliance description �� 21

4. Operation �� 21

4.1 Recommended settings �� 22

4.2 Temperature limit / Anti-scalding protection �� 22

5. Cleaning, care and maintenance �� 22

6. Troubleshooting �� 22

INSTALLATION

7. Safety �� 23

7.1 General safety instructions �� 23

7.2 Instructions, standards and regulations �� 23

8. Appliance description �� 23

8.1 Standard delivery �� 23

8.2 Accessories �� 23

9. Preparations �� 24

9.1 Installation site �� 24

9.2 Water installation �� 24

9.3 Appliance with adjustable connected load �� 25

10. Installation �� 25

10.1 Standard installation �� 25

10.2 Completing the installation �� 27

11. Commissioning �� 27

11.1 Initial start-up �� 27

11.2 Recommissioning �� 28

12. Shutdown �� 28

13. Installation options �� 28

13.1 Electrical connection from above on unﬁnished walls �� 28

13.2 Electrical connection on ﬁnished walls �� 28

13.3 Large conductor cross-section for electrical connection from below �� 28

13.4 Connecting a load shedding relay �� 29

13.5 Water installation on ﬁnished walls ��29

13.6 Water installation on ﬁnished walls with solder/ compression ﬁtting �� 29

13.7 Water installation on ﬁnished walls; ﬁtting the appliance cover ��29

13.8 Fitting the base part of the back panel with threaded ﬁttings on ﬁnished walls �� 29

13.9 Wall mounting bracket when replacing an appliance �� 30

13.10 Installation with offset tiles �� 30

13.11 Pivoting appliance cover ��30

13.12 Temperature limit / Anti-scalding protection �� 30

14. Troubleshooting �� 31

15. Maintenance �� 32

16. Speciﬁcation �� 32

16.1 Dimensions and connections �� 32

16.2 Wiring diagram �� 32

16.3 DHW output �� 33

16.4 Application areas/ conversion table �� 33

16.5 Pressure drop �� 33

16.6 Details on energy consumption �� 33

16.7 Data table ��34

GUARANTEE

ENVIRONMENT AND RECYCLING

ENGLISH

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SPECIAL INFORMATION

SPECIAL INFORMATION | OPERATION

General information

SPECIAL INFORMATION

- The appliance may be used by children aged 3 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.

- The tap can reach temperatures in excess of 60°C. There is a risk of scalding at outlet temperatures in excess of 43 °C.

- Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3mm contact separation.

- The speciﬁed voltage must match the mains voltage.

- The appliance must be connected to earth.

- The appliance must be permanently connected to ﬁxed wiring.

- Secure the appliance as described in chapter “Installation/ Installation”.

- Observe the maximum permissible pressure (see chapter “Installation/ Speciﬁcation/ Data table”).

OPERATION

1. General information

The chapters “Special Information” and “Operation” are intended for both the user and qualiﬁed contractors.

The chapter “Installation” is intended for qualiﬁed contractors.

Note

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

KEYWORD 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

Symbol Type of risk

Injury

Electrocution

Burns (burns, scalding)

- The speciﬁc water resistivity of the mains water supply must not be undershot (see chapter “Installation / Speciﬁcation / Data table”).

- Drain the appliance as described in chapter “Installation/ Maintenance/ Draining the appliance”.

1.1.3 Keywords

KEYWORD Meaning

DANGER Failure to observe this information will result in serious

injury or death.

WARNING Failure to observe this information may result in serious

injury or death.

CAUTION Failure to observe this information may result in non-seri-

ous or minor injury.

1.2 Other symbols in this documentation

Note

General information is identiﬁed by the adjacent symbol.

 Read these texts carefully.

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OPERATION

Safety

Symbol Meaning

 This symbol indicates that you have to do something. The ac-

tion you need to take is described step by step.

Material losses (appliance damage, consequential losses and environmental pollution)

Appliance disposal

1.3 Units of measurement

Note

All measurements are given in mm unless stated otherwise.

2. Safety

2.1 Intended use

This appliance is intended for heating domestic hot water (DHW) or for reheating preheated water and can 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 General safety instructions

CAUTION Burns During operation, the tap can reach temperatures in excess of 60 °C. There is a risk of scalding at outlet temperatures in excess of 43°C.

2.3 Test symbols

See type plate on the appliance.

3. Appliance description

The electronically controlled instantaneous water heater maintains a constant outlet temperature up to its output limit, irrespective of the inlet temperature.

The appliance heats the water directly at the draw-off point, as soon as you turn on the hot water tap. The short pipe runs ensure that energy and water losses are minimal.

For the start ﬂow rate, see chapter “Installation/ Speciﬁcation/ Data table, On”.

The DHW output depends on the cold water temperature, the heating output, the ﬂow rate and the selected set temperature.

Water will not be reheated if the maximum inlet temperature for reheating is exceeded.

DHW temperature

The DHW outlet temperature can be variably adjusted.

Temperature limit / Anti-scalding protection

The maximum outlet temperature for the appliance can be limited to 43°C. For this, contact your local heating contractor.

Heating system

The bare wire heating system has a pressure-tested plastic casing. The heating system is suitable for (both) soft and hard water and is largely resistant to scale build-up. This heating system ensures rapid and efﬁcient DHW availability.

Note

The appliance is equipped with an air detector that largely prevents damage to the heating system. If, during operation, air is drawn into the appliance, the appliance shuts down for one minute, thereby protecting the heating system.

ENGLISH

CAUTION Burns When operating the appliance with preheated water, e.g. from a solar thermal system, the DHW temperature may vary from the selected set temperature.

WARNING Injury

The appliance may be used by children aged 3 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.

Material losses

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

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4. Operation

 Turn the temperature selector to the required position.

If the outlet temperature fails to reach the required level with the tap fully open and the temperature selector set to maximum, then more water is ﬂowing through the appliance than can be heated by the heating element.

 Reduce the ﬂow rate at the tap.

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OPERATION

Cleaning, care and maintenance

4.1 Recommended settings

Thermostatic valve

If the appliance is being operated with a thermostatic valve, we recommend setting the temperature on the appliance to maximum. The required temperature can then be set at the thermostatic valve.

DHB-E ... SL

Following an interruption to the water supply

Material losses

To ensure that the bare wire heating system is not damaged following an interruption to the water supply, the appliance must be restarted taking the following steps.

 Disconnect the appliance from the power supply by

removing the fuses/tripping the MCBs.

 Open the tap for one minute until the appliance and

its upstream cold water inlet line are free of air.

 Switch the mains power back ON again.

4.2 Temperature limit / Anti-scalding protection

The maximum outlet temperature for the appliance can be limited to 43°C. For this, contact your local heating contractor.

5. 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 out-

lets can be removed using commercially available descaling agents.

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6. Troubleshooting

Problem Cause Remedy

The appliance will not start despite the DHW valve being fully open.

When hot water is being drawn off, cold water flows for a short period.

Required temperature >45°C is not achieved.

Cold water inlet tempera-

If you cannot remedy the fault, notify your qualiﬁed contractor. To facilitate and speed up your request, provide the number from the type plate (000000-0000-000000).

There is no power.

The aerator in the tap or the shower head is scaled up or contaminated.

The air sensor detects air in the water and briefly switches the heater off.

The water supply has been interrupted.

ture is >45°C.

Check the fuses/MCBs in your fuse box/distribution panel.

Clean and/or descale the aerator or shower head.

The appliance restarts automatically after 1minute.

Vent the appliance and the cold water supply line (see chapter "Operation/ Recommended settings/ Following an interruption to the water supply").

Reduce the cold water inlet temperature.

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INSTALLAT ION

Safety

INSTALLATION

7. Safety

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

7.1 General safety instructions

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

Material losses

Observe the maximum permissible inlet temperature (see chapter "Installation/ Speciﬁcation/ Data table"). Higher temperatures may damage the appliance. The inlet temperature can be limited by means of a central thermostatic valve (see chapter "Installation/ Appliance description/ Accessories").

7.2 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations and instructions.

- The IP 25 (hoseproof) rating can only be ensured with a correctly ﬁtted cable grommet.

- The speciﬁc electrical resistance of the water must not fall below that stated on the type plate. In a linked water network, factor in the lowest electrical resistance of the water (see chapter “Installation/ Speciﬁcation/ Data table”). Your water supply utility will advise you of the speciﬁc electrical resistance or conductivity of the water.

8.2 Accessories

Taps/valves

- MEKD mono lever kitchen pressure tap

- MEBD mono lever bath pressure tap

Plug G½A

If you use pressure taps for ﬁnished walls other than those recommended in the accessories, please use the plugs.

ENGLISH

Installation set for ﬁnished walls

- Solder ﬁtting - copper pipe for soldered connection Ø12mm

- Compression ﬁtting - copper pipe

- Compression ﬁtting - plastic pipe (suitable for Viega: Sanﬁx-Plus or Sanﬁx-Fosta)

Universal mounting frame

- Mounting frame with electrical connections

Pipe assembly for undersink appliances

You will need the undersink installation set if you make the water connections (G⅜A) at the top of the appliance.

Pipe assembly for offset installation

Use this pipe assembly set if you intend to offset the appliance by 90mm downwards from the water connection.

Pipe assembly for replacing a gas water heater

You will need this pipe assembly set if the existing installation has gas water heater connections (cold water connection on the left-hand side, DHW connection on the right-hand side).

Pipe assembly DHB water plug-in couplings

Use the water plug-in couplings if the existing installation contains water plug-in connections from a DHB water heater.

8. Appliance description

8.1 Standard delivery

The following are delivered with the appliance:

- Wall mounting bracket

- Installation template

- 2 twin connectors

- Cold water 3-way ball shut-off valve

- DHW tee

- Flat gaskets

- Strainer

- Flow limiter

- Plastic proﬁle washer

- Plastic connection pieces/ installation aid

- Cap and back panel guides

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Load shedding relay (LR 1-A)

The load shedding relay for installation in the distribution board provides priority control for the instantaneous water heater when other appliances, such as electric storage heaters, are being operated simultaneously.

ZTA 3/4 – Central thermostatic valve

Thermostatic valve for central premixing, for example when operating an instantaneous water heater with a solar thermal system.

+ 12 hidden pages

STIEBEL ELTRON DHB-E 11 SLi electronic, DHB-E 13 SLi electronic, DHB-E 18 SLi 25 A electronic, DHB-E 18/21/24 SLi electronic, DHB-E 27 SLi electronic Operation And Installation

Specifications and Main Features

Frequently Asked Questions

User Manual