STIEBEL ELTRON DHB-E 11 SLi electronic Instruction Manual

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
30 60
45
35
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electronic

ENGLISH
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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

SPECIAL INFORMATION
General information
20 | DHB-E SLi www.stiebel-eltron.com
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 ex-
perience 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 ap-
pliance 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 temper-
atures 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 “In-
stallation/ Installation”.
- Observe the maximum permissible pressure (see
chapter “Installation/ Specification/ Data table”).
- The specific water resistivity of the mains water
supply must not be undershot (see chapter “In-
stallation / Specification / Data table”).
- Drain the appliance as described in chap-
ter “Installation/ Maintenance/ Draining the
appliance”.
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 appli-
ance 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)
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.
!

OPERATION
Safety
ENGLISH
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Symbol Meaning
Material losses
(appliance damage, consequential losses and environmen-
tal pollution)
Appliance disposal
 This symbol indicates that you have to do something. The ac-
tion you need to take is described step by step.
1.3 Units of measurement
Note
All measurements are given in mm unless stated oth-
erwise.
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-do-
mestic 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 inappropri-
ate. 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 ex-
cess of 60 °C.
There is a risk of scalding at outlet temperatures in ex-
cess of 43°C.
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, pro-
vided that they are supervised or they have been in-
structed 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 ap-
pliance or perform user maintenance unless they are
supervised.
!
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 electronically controlled instantaneous water heater main-
tains a constant outlet temperature up to its output limit, irre-
spective 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 large-
ly prevents damage to the heating system. If, during op-
eration, air is drawn into the appliance, the appliance
shuts down for one minute, thereby protecting the heat-
ing system.
4. Operation
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26�02�02�1381
 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.
!

OPERATION
Cleaning, care and maintenance
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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 maxi-
mum. The required temperature can then be set at the thermo-
static valve.
Following an interruption to the water supply
!
Material losses
To ensure that the bare wire heating system is not dam-
aged 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.
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no power. Check the fuses/MCBs in
your fuse box/distribu-
tion panel.
The aerator in the tap
or the shower head is
scaled up or contami-
nated.
Clean and/or descale the
aerator or shower head.
When hot water is being
drawn off, cold water
flows for a short period.
The air sensor detects air
in the water and briefly
switches the heater off.
The appliance restarts
automatically after
1minute.
Required temperature
>45°C is not achieved.
The water supply has
been interrupted.
Vent the appliance and
the cold water supply line
(see chapter "Operation/
Recommended settings/
Following an interruption
to the water supply").
Cold water inlet tempera-
ture is >45°C.
Reduce the cold water
inlet temperature.
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).
26�02�02�0818
DHB-E ... SL

INSTALLATION
Safety
ENGLISH
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INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, 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 cor-
rectly fitted cable grommet.
- The specific electrical resistance of the water must not fall
below that stated on the type plate. In a linked water net-
work, 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. 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
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 rec-
ommended in the accessories, please use the plugs.
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: San-
fix-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.
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 op-
erated simultaneously.
ZTA 3/4 – Central thermostatic valve
Thermostatic valve for central premixing, for example when oper-
ating an instantaneous water heater with a solar thermal system.

INSTALLATION
Preparations
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9. Preparations
9.1 Installation site
!
Material losses
Install the appliance in a room free from the risk of frost.
 Always install the appliance vertically and near the draw-off
point.
The appliance is suitable for undersink and oversink installation.
Undersink installation
1
2
26�02�02�0844
1 Cold water inlet
2 DHW outlet
Oversink installation
26�02�02�0845
2 1
1 Cold water inlet
2 DHW outlet
Note
 Mount the appliance on the wall. The wall must have
a sufficient load-bearing capacity.
9.2 Water installation
- No safety valve is required.
 Flush the water line thoroughly.
Taps/valves
Use suitable pressure taps/valves (see chapter “Installation/
Appliance description/ Accessories”). Open vented taps are not
permitted.
Note
Never use the 3-way ball shut-off valve in the cold water
inlet to reduce the flow rate. The 3-way ball shut-off valve
is intended to shut off the appliance.
Permissible water line materials
- Cold water inlet line:
Pipes made from galvanised steel, stainless steel, copper or
plastic
- DHW outlet line:
Pipes made from stainless steel, copper or plastic
!
Material losses
If plastic pipework is used, take into account the max-
imum inlet temperature and the maximum permissible
pressure (see chapter "Installation/ Specification/ Data
table").
Flow rate
 Ensure that the flow rate for switching on the appliance is
achieved (see chapter “Installation/ Specification/ Data
table”, On).
 Increase the water line pressure if the required flow rate is
not achieved when the draw-off valve is fully open. If the
flow rate is not reached despite increasing the pressure, re-
move the flow limiter and install the plastic profile washer.
2
1
26�02�02�0820
1 Flow limiter
2 Plastic profile washer
Note
For the thermostatic valve to function correctly, the flow
limiter must not be replaced with the plastic profile wash-
er.

INSTALLATION
Installation
ENGLISH
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9.3 Appliance with adjustable connected load
The appliance DHB-E 18/21/24 SL is set to 21kW when delivered.
If the appliance is to be installed with a different output, take the
following steps:
 Plug in the coding card according to the selected output; for
selectable output and fuse protection of the appliance, see
chapter “Installation/ Specification/ Data table”.
 Tick the selected output on the type plate. Use a permanent
marker for this.
 Install the flow limiter with an output corresponding to that
of the appliance (see chapter “Installation/ Specification/
Data table”).
D0000047341
10. Installation
Standard installation
- Electrical connection from below on unfinished walls
- Water connection on unfinished walls
For further installation options, see chapter “Installation/
Installation options”:
- Electrical connection from above on unfinished walls
- Electrical connection on finished walls
- Large conductor cross-section for electrical connection from
below
- Connecting a load shedding relay
- Water installation on finished walls
- Water installation on finished walls with solder/ compres-
sion fitting
- Water installation on finished walls; fitting the appliance
cover
- Fitting the base part of the back panel with threaded fittings
on finished walls
- Wall mounting bracket when replacing an appliance
- Installation with offset tiles
- Pivoting appliance cover
- Temperature limit / Anti-scalding protection
10.1 Standard installation
Opening the appliance
26�02�02�0808
 Open the appliance by pulling the flap forwards and down-
wards, undo the screw and lift up the appliance cover.
26�02�02�1101
 Remove the back panel by pressing the two locking hooks
and pulling the base part of the back panel forwards.
Preparing the power cable
160
30
1
26�02�02�0824�
1 Installation aid
 Prepare the power cable.
Fitting the wall mounting bracket
D0000059694
 Mark out the holes for drilling using the installation template.
If the appliance is to be installed with water connections on
finished walls, also mark out a fixing hole in the lower part
of the template.
 Drill the holes and secure the wall mounting bracket at 2
points using suitable fixing materials (screws and rawl plugs
are not part of the standard delivery).
 Fit the wall mounting bracket.

INSTALLATION
Installation
26 | DHB-E SLi www.stiebel-eltron.com
Making the water connection
!
Material losses
Carry out all water connection and installation work in
accordance with regulations.
12
D0000053319
 Seal and insert the twin connectors.
5 Nm
24
D0000050947
1
4
5
2
3
2
1 DHW with tee
2 Gasket
3 Cold water with 3-way ball shut-off valve
4 Strainer
5 Flow limiter or plastic profile washer (see chapter “Installa-
tion/ Water installation/ Flow rate”)
Note
A second flow limiter is provided with the DHB-E 18/21/24
SL. Install the appropriate flow limiter for output of the
appliance (see "Flow rate regulator" in chapter "Installa-
tion/ Specification/ Data table"):
4.0l/min = pink
7.5 l/min = blue
8.5 l/min = green
 Secure the tee and and 3-way ball shut-off valve, each with a
flat gasket, to the twin connector.
!
Material losses
Never use the 3-way ball shut-off valve in the cold water
inlet to reduce the flow rate.
Installing the appliance
26�02�02�0811
 For easier installation, push the cable grommet of the upper
electrical connection into the back panel from behind.
 Remove the transport plugs from the water connections.
 Remove the fixing toggle from the upper part of the back
panel.
 Route the power cable through the cable grommet from
behind until the power cable rests against the cable sheath.
Align the power cable.
Enlarge the hole in the cable grommet if the cross-section of
the power cable is >6mm².
 Push the appliance over the threaded stud of the wall mount-
ing bracket, so that it breaks through the soft seal. If neces-
sary, use a screwdriver.
 Push the fixing toggle on to the threaded stud of the wall
mounting bracket.
 Push the back panel firmly against the wall. Lock the fixing
toggle by turning it 90° clockwise.
26�02�02�0858
 Fit the pipes with flat gaskets onto the twin connectors.
!
Material losses
The strainer must be fitted for the appliance to function.
 When replacing an appliance, check whether the
strainer is installed.

INSTALLATION
Commissioning
ENGLISH
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Making the electrical connection
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection in conjunction with the re-
movable cable grommet. Ensure the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3 mm contact separation.
WARNING Electrocution
Ensure that the appliance is earthed.
!
Material losses
Observe the type plate. The specified voltage must match
the mains voltage.
 Connect the power cable to the mains terminal (see chapter
“Installation/ Specification/ Wiring diagrams”).
Fitting the base part of the back panel
26�02�02�1102�
 Fit the base part into the back panel. Click the base part into
place.
 Align the mounted appliance by loosening the fixing toggle,
aligning the power supply and back panel, and then re-tight-
ening the fixing toggle. If the back panel does not sit flush
against the wall, you can secure the appliance at the bottom
with an additional screw.
10.2 Completing the installation
 Open the 3-way ball shut-off valve or the shut-off valve in the
cold water supply line.
11. Commissioning
WARNING Electrocution
Commissioning may only be carried out by a qualified
contractor in accordance with safety regulations.
11.1 Initial start-up
30 60
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°C
electronic
30 60
45
35
40 50
55
°C
electronic
..
2..
≥ 60 s
D0000051946
 Open and close all connected draw-off valves several times,
until all air has been purged from the pipework and the
appliance.
 Carry out a tightness check.
 Activate the safety pressure limiter at flow pressure by firmly
pressing in the reset button (the appliance is delivered with
the safety pressure limiter deactivated).
 Plug the set value transducer cable plug into the PCB.
 Fit the appliance cover. Check that the appliance cover is
seated correctly.
 Secure the appliance cover with the screw.
 Switch the mains power ON.
 Calibrate the temperature. Turn the temperature selector
fully clockwise then fully anti-clockwise.
 Remove the protective foil from the control fascia.
 Check the function of the appliance.
Appliance handover
 Explain the appliance function to users and familiarise them
with its operation.
 Make the user aware of potential dangers, especially the risk
of scalding.
 Hand over these instructions.

INSTALLATION
Shutdown
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11.2 Recommissioning
!
Material losses
To ensure that the bare wire heating system is not dam-
aged 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.
12. Shutdown
 Isolate all poles of the appliance from the power supply.
 Drain the appliance (see chapter “Installation/ Maintenance/
Draining the appliance”).
13. Installation options
13.1 Electrical connection from above on unfinished
walls
26�02�02�1123�
 Cut open the cable grommet for the power cable.
 Push down the locking hook for securing the mains terminal.
Pull out the mains terminal.
 Reposition the mains terminal in the appliance from the bot-
tom to the top. Secure the mains terminal by sliding it under
the locking hook.
 Route the control wires under the wire guide.
13.2 Electrical connection on finished walls
Note
This type of connection changes the protection rating of
the appliance.
 Change the type plate. Cross out "IP 25" and mark
the box "IP 24". Please use a ballpoint pen to do this.
!
Material losses
If you break open the wrong knock-out in the back panel
by mistake, you must use a new back panel.
 Cleanly cut or break out the required cable entry in the back
panel (for positions, see chapter “Installation/ Specification/
Dimensions and connections”). Deburr sharp edges with a
file if necessary.
 Route the power cable through the cable grommet. Connect
the power cable to the mains terminal.
13.3 Large conductor cross-section for electrical
connection from below
If you use cables with a large cross-section, you can fit the cable
grommet after the appliance has been installed.
1.
3. 4.
2.
26�02�02�1124�
 Before installing the appliance, use a screwdriver to push out
the cable grommet.
 Slide the cable grommet over the power cable. Use the
installation aid supplied in the standard delivery. If the
cross-section is >6mm², enlarge the hole in the cable
grommet.
 Push the cable grommet into the back panel. Click the cable
grommet into place.

INSTALLATION
Installation options
ENGLISH
www.stiebel-eltron.com DHB-E SLi | 29
13.4 Connecting a load shedding relay
When operating additional electric appliances, such as electric
storage heaters, install a load shedding relay in the distribution
board. The relay responds when the instantaneous water heater
starts.
!
Material losses
Connect the phase that switches the load shedding relay
to the indicated terminal of the mains terminal in the ap-
pliance (see chapter "Installation/ Specification/ Wiring
diagrams").
13.5 Water installation on finished walls
Note
This type of connection changes the protection rating of
the appliance.
 Change the type plate. Cross out "IP 25" and mark
the box "IP 24". Please use a ballpoint pen to do this.
19
24
5 Nm
18 Nm
D0000033104
 Fit water plugs with gaskets to seal the in-wall connection.
All taps listed under “Accessories” are supplied with plugs
and gaskets as part of their standard delivery. For pressure
taps other than those we recommend, plugs and gaskets can
be ordered as “Accessories”.
 Fit a suitable pressure tap.
 Push the base part of the back panel under the connecting
pipes of the tap and push it into the back panel.
 Secure the connection pipes to the tee and the 3-way ball
shut-off valve.
13.6 Water installation on finished walls with
solder/ compression fitting
You can connect copper or plastic pipes using the accessories
“solder fitting” or “compression fitting”.
With “solder fitting” with threaded connection for 12 mm copper
pipes, proceed as follows:
 Push the union nuts over the connection pipes.
 Solder the inserts to the copper pipes.
 Push the base part of the back panel under the connecting
pipes of the tap and push it into the back panel.
 Secure the connection pipes to the tee and the 3-way ball
shut-off valve.
Note
Observe the tap manufacturer's instructions.
13.7 Water installation on finished walls; fitting the
appliance cover
4
3
2
1
0000061397
1 Back panel guide pieces
2 Screw
3 Cover guide pieces
4 Pipe aperture
 Cleanly break out the knock-out apertures in the appliance
cover. If necessary, use a file.
Note
Use the cap guide pieces if the connection pipes are
slightly offset.
 If the connection pipes are substantially offset, do
not fit the back panel guide pieces.
 When installing connection pipes without offset, break off
the tabs on the cover guide pieces.
 Click the cover guides into place in the knock-out apertures.
 Position the back panel guide pieces on the pipes. Push them
together. Then push the guide pieces against the back panel
as far possible.
 Secure the back panel at the bottom with a screw.
 If you use flexible water connection pipes, prevent pipe
bends from twisting (bayonet connections in the appliance).
13.8 Fitting the base part of the back panel with
threaded fittings on finished walls
If using threaded connections for finished walls, the base part of
the back panel can also be installed after fitting the taps. To do
this, carry out the following steps:
 Saw open the base part of the back panel.
 Fit the base part of the back panel by bending it out at the
sides and guiding it over the pipes.
 Insert the connection pieces into the base part of the back
panel from behind.
 Click the base part into place in the back panel.
 Secure the base part of the back panel with a screw.

INSTALLATION
Installation options
30 | DHB-E SLi www.stiebel-eltron.com
2
1
26�02�02�1080
3
1 Base part of the back panel
2 Connection pieces delivered in the pack
3 Screw
13.9 Wall mounting bracket when replacing an
appliance
An existing STIEBELELTRON wall mounting bracket may be used
when replacing appliances (except for DHF instantaneous water
heater).
 Break through the back panel of the appliance for the thread-
ed stud on the installed wall mounting bracket.
Replacing a DHF instantaneous water heater
26�02�02�0815�
 Reposition the threaded stud on the wall mounting bracket
(the stud has a self-tapping thread).
 Rotate the wall mounting bracket 180° and mount it on the
wall (the DHF logo is then turned towards the reader).
13.10 Installation with offset tiles
110
20
26�02�02�1066�
2
1
1 Minimum contact area of the appliance
2 Maximum tile offset
 Adjust the wall clearance. Lock the back panel in place using
the fixing toggle (turn 90° clockwise).
13.11 Pivoting appliance cover
The appliance cover can be turned round for undersink instal-
lation.
26�02�02�0817
 Remove the programming unit from the appliance cover by
pressing the locking hooks.
 Turn the appliance cover and click the programming unit
back into place, ensuring that all locking hooks are engaged.
For easier installation of the programming unit, press against
the inner side of the appliance cover in the shaded area.
!
Material losses
Do not install a programming unit with faulty locking
hooks. Otherwise the safety of the appliance cannot be
guaranteed.
 Plug the set value transducer cable into the PCB (see chapter
“Installation/ Commissioning/ Initial start-up”).
 Hook the appliance cover in at the top. Pivot the appliance
cover down onto the back panel and press down until it en-
gages audibly.
 Secure the appliance cover.
13.12 Temperature limit / Anti-scalding protection
The maximum temperature can be limited to 43°C on the pro-
gramming unit of the appliance cover. For this, the following steps
are necessary:
 Remove the appliance cover.
 Remove the electronic PCB from the programming unit of the
appliance cover. Be careful with the snap-on hooks.
 Move the plug from left to right (position “43°C”).
 Refit the programming unit, ensuring the snap-on hooks
click into place. Observe the positions of the push-button and
shaft.
CAUTION Burns
If operating the appliance with preheated water, the set
temperature limit and anti-scalding protection may be
ineffective.
 In this case, restrict the temperature at the upstream
central thermostatic valve (see chapter "Installation/
Appliance description/ Accessories").

INSTALLATION
Troubleshooting
ENGLISH
www.stiebel-eltron.com DHB-E SLi | 31
26�02�02�0833
14. Troubleshooting
WARNING Electrocution
To test the appliance, it must be supplied with power.
Indication variants for diagnostic traffic light (LED)
Red Illuminates in the event of a fault
Yellow Illuminates during heating operation
Green Flashing: Appliance is supplied with mains power
Fault / LED diagnostic traffic light signal Cause Remedy
The appliance does not start. The shower head / aerators are scaled up. Descale or if necessary replace the shower head/
aerators.
The flow rate is too low. The strainer in the appliance is dirty. Clean the strainer.
The set temperature is not achieved. One phase down. Check the fuse/MCB in your fuse box/distribution
panel.
The heater switches off. The air detector senses air in the water. Heating output
cuts out temporarily.
The appliance restarts after one minute.
No hot water and no traffic light display. The MCB/fuse has responded/blown. Check the fuse/MCB in your fuse box/distribution
panel.
The safety pressure limiter has tripped. Remove the cause of the fault (e.g. faulty pressure
flush).
Protect the heating system against overheating by
opening a draw-off valve downstream from the ap-
pliance for one minute. This depressurises and cools
down the heating system.
Activate the safety pressure limiter at flow pressure
by pressing the reset button, also see chapter "In-
stallation/ Commissioning/ Initial start-up".
The PCB is faulty. Check the PCB and replace if necessary.
Traffic light display: Green flashing
No hot water at flow rate
>3l/min.
Flow sensor DFE is not plugged in. Re-insert the flow sensor plug.
Flow sensor DFE is faulty. Check the flow sensor and replace if necessary.
The set temperature is not achieved. The set value transducer or connecting cable is faulty, or
the connecting cable is not attached.
Attach the connecting cable; replace the set value
transducer if required.
Temperature limiting is enabled. Disable temperature limiting.
Traffic light display: Yellow constantly on; green
flashing
No hot water at flow rate
>3l/min.
The high limit safety cut-out has responded or suffered
a lead break.
Check the high limit safety cut-out and replace if
necessary.
The heating system is faulty. Check the resistance of the heater and replace if
necessary.
The PCB is faulty. Check the PCB and replace if necessary.
Traffic light display: Yellow constantly on; green
flashing
The outlet sensor is faulty. Check the connection and replace the outlet sensor
if necessary.
Set temperature is not achieved. Appliance is operating at its output limit. Reduce the flow rate. Install the flow limiter.
Traffic light display: Red constantly on; green
flashing
The outlet sensor is faulty. Check the connection and replace the outlet sensor
if necessary.
No hot water The cold water sensor is faulty. Check the PCB and replace if necessary.
Required temperature >45°C not reached. The cold water inlet temperature exceeds 45°C. Reduce the cold water inlet temperature to the ap-
pliance.

INSTALLATION
Maintenance
32 | DHB-E SLi www.stiebel-eltron.com
15. Maintenance
WARNING Electrocution
Before any work on the appliance, ensure omnipolar
disconnection from the power supply.
Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns
Hot water may escape when you drain the appliance.
 Close the 3-way shut-off valve or the shut-off valve in the
cold water supply line.
 Open all draw-off valves.
 Undo the water connections on the appliance.
 If dismantled, store the appliance in a room free from the
risk of frost, as water residues remaining inside the appli-
ance can freeze and cause damage.
Cleaning the strainer
If contaminated, clean the strainer in the threaded cold water
fitting. Close the 3-way shut-off valve or the shut-off valve in the
cold water supply line before removing, cleaning and refitting
the strainer.
16. Specification
16.1 Dimensions and connections
478
100
414
44
105≤ 20225
140
30
35
35
114
368
338
47
b03
b02
c01c06
D0000017973
DHB-E SLi
b02 Entry for cables I
b03 Entry for cables II
c01 Cold water inlet Male thread G 1/2 A
c06 DHW outlet Male thread G 1/2 A
Alternative connection options
165
50
44
30
35
72
325
338
47
b03
b02
b04
b04
b04
b04 b04
D0000019212
DHB-E SLi
b02 Entry for cables I
b03 Entry for cables II
b04 Entry for cables III
16.2 Wiring diagram
3/PE ~ 380-415 V
85�02�02�0005
1 Heater
2 High limit safety cut-out
3 Safety pressure limiter
Priority control with LR 1-A
85�02�02�0003�
2
1
1 Control cable to the contactor of the second appliance (e.g.
electric storage heater).
2 Control contact opens when switching the instantaneous
water heater on.

INSTALLATION
Specication
ENGLISH
www.stiebel-eltron.com DHB-E SLi | 33
16.3 DHW output
The DHW output is subject to the mains voltage, the appliance’s
connected load and the cold water inlet temperature. The rated
voltage and rated output can be found on the type plate (see
chapter “Operation/ Troubleshooting”).
Connected load in kW 38 °C DHW output in l/min.
Rated voltage Cold water inlet temperature
380 V 400 V 415 V 5°C 10°C 15°C 20°C
10,1 4,4 5,2 6,3 8,0
11 4,8 5,6 6,8 8,7
12,2 5,3 6,2 7,6 9,7
13,5 5,8 6,9 8,4 10,7
14,5 6,3 7,4 9,0 11,5
16,2 7,0 8,3 10,1 12,9
18 7,8 9,2 11,2 14,3
19,4 8,4 9,9 12,0 15,4
16,2 7,0 8,3 10,1 12,9
19 8,2 9,7 11,8 15,1
21,7 9,4 11,1 13,5 17,2
18 7,8 9,2 11,2 14,3
21 9,1 10,7 13,0 16,7
24 10,4 12,2 14,9 19,0
19,4 8,4 9,9 12,0 15,4
22,6 9,8 11,5 14,0 17,9
25,8 11,2 13,2 16,0 20,5
24,4 10,6 12,4 15,2 19,4
27 11,7 13,8 16,8 21,4
Connected load in kW 50 °C DHW output in l/min.
Rated voltage Cold water inlet temperature
380 V 400 V 415 V 5°C 10°C 15°C 20°C
10,1 3,2 3,6 4,1 4,8
11 3,5 3,9 4,5 5,2
12,2 3,9 4,4 5,0 5,8
13,5 4,3 4,8 5,5 6,4
14,5 4,6 5,2 5,9 6,9
16,2 5,1 5,8 6,6 7,7
18 5,7 6,4 7,3 8,6
19,4 6,2 6,9 7,9 9,2
16,2 5,1 5,8 6,6 7,7
19 6,0 6,8 7,8 9,0
21,7 6,9 7,8 8,9 10,3
Connected load in kW 50 °C DHW output in l/min.
Rated voltage Cold water inlet temperature
380 V 400 V 415 V 5°C 10°C 15°C 20°C
18 5,7 6,4 7,3 8,6
21 6,7 7,5 8,6 10,0
24 7,6 8,6 9,8 11,4
19,4 6,2 6,9 7,9 9,2
22,6 7,2 8,1 9,2 10,8
25,8 8,2 9,2 10,5 12,3
24,4 7,7 8,7 10,0 11,6
27 8,6 9,6 11,0 12,9
16.4 Application areas/ conversion table
Specific electrical resistance and specific electrical conductivity
(see chapter “Installation/ Data table”).
Standard specifica-
tion at 15 °C 20°C 25°C
Resist-
ance
ρ ≥
Conductivity σ≤ Resist-
ance
ρ ≥
Conductivity σ≤ Resist-
ance
ρ ≥
Conductivity σ≤
Ωcm mS/m μS/cm Ωcm mS/m μS/cm Ωcm mS/m μS/cm
900 111 1111 800 125 1250 735 136 1361
1000 100 1000 890 112 1124 815 123 1227
1100 91 909 970 103 1031 895 112 1117
1200 83 833 1070 93 935 985 102 1015
1300 77 769 1175 85 851 1072 93 933
16.5 Pressure drop
Taps/valves
Tap pressure drop at a flow rate of 10 l/min
Mono lever mixer tap, approx. MPa 0.04 - 0.08
Thermostatic valve, approx. MPa 0.03 - 0.05
Shower head, approx. MPa 0.03 - 0.15
Sizing the pipework
When calculating the size of the pipework, an appliance pressure
drop of 0.1MPa is recommended.
16.6 Details on energy consumption
The product data complies with EU regulations relating to the
Directive on the ecological design of energy related products (ErP).
DHB-E 11 SLi DHB-E 13 SLi DHB-E 18 SLi 25 A DHB-E 18/21/24 SLi DHB-E 27 SLi
232013 232014 232015 232016 232017
Manufacturer STIEBEL ELTRON STIEBEL ELTRON STIEBEL ELTRON STIEBEL ELTRON STIEBEL ELTRON
Load profile S S S S S
Energy efficiency class A A A A A
Annual power consumption kWh 472 472 477 477 481
Energy conversion efficiency %39 39 39 39 39
Default temperature setting °C 60 60 60 60 60
Sound power level dB(A) 15 15 15 15 15
Special information on measuring efficiency None None None Data at Pmax. None

INSTALLATION
Specication
34 | DHB-E SLi www.stiebel-eltron.com
INSTALLATION | GUARANTEE | ENVIRONMENT AND RECYCLING
Specication
16.7 Data table
DHB-E 11 SLi DHB-E 13 SLi DHB-E 18 SLi 25 A DHB-E 18/21/24 SLi DHB-E 27 SLi
232013 232014 232015 232016 232017
Electrical data
Rated voltage V380 400 380 400 415 380 400 415 380 400 415 380 400
Rated output kW 10.1 11 12.2 13.5 14.5 16.2 18 19.4 16.2/19/21.7 18/21/24 19.4/22.6/25.8 24.4 27
Rated current A15.4 16 18.5 19.5 20.2 24.7 26 27 27.6/29.5/33.3 29/31/35 30.1/32.2/36.3 37.1 39
MCB/fuse rating A16 16 20 20 20 25 25 32 32/32/35 32/32/35 32/32/40 40 40
Phases 3/PE 3/PE 3/PE 3/PE 3/PE
Frequency Hz 50/60 50/60 50/60 50/60 50/- 50/60 50/60 50/- 50/60 50/60 50/- 50/- 50/-
Specific resistance ρ15 ≥ (at ϑcold
≤25°C)
Ω cm 900 900 900 900 1000 900 900 1000 900 900 1000 900 900
Specific conductivity σ15 ≤ (at ϑcold
≤25°C)
μS/cm 1111 1111 1111 1111 1000 1111 1111 1000 1111 1111 1000 1111 1111
Specific resistance ρ15 ≥ (at ϑcold
≤45°C)
Ω cm 1200 1200 1200 1200 1300 1200 1200 1300 1200 1200 1300 1200 1200
Specific conductivity σ15 ≤ (at ϑcold
≤45°C)
μS/cm 833 833 833 833 770 833 833 770 833 833 770 833 833
Max. mains impedance at 50Hz Ω 0.379 0.360 0.347 0.284 0.270 0.260 0.254 0.241
Connections
Water connection G 1/2 A G 1/2 A G 1/2 A G 1/2 A G 1/2 A
Application limits
Max. permissible pressure MPa 1 1 1 1 1
Max. inlet temperature for reheat-
ing
°C 45 45 45 45 45
Values
Max. permissible inlet temperature °C 60 60 60 60 60
On l/min >3.0 >3.0 >3.0 >3.0 >3.0
Flow rate for pressure drop l/min 3.1 3.9 5.2 5.2/6.0/6.9 7.7
Pressure drop at flow rate MPa 0.07 (0.02 with-
out DMB)
0.11 (0.03 without
DMB)
0.08 (0.06 without
DMB)
0.08/0.10/0.13 (0.06/0.08/0.10 without
DMB)
0.16 (0.12 with-
out DMB)
Flow rate limit at l/min 4.0 4.0 7.5 7.5/7.5/8.5 8.5
DHW delivery l/min 5.6 6.9 9.2 9.2/10.7/12.3 13.8
Δϑon delivery K28 28 28 28 28
Hydraulic data
Nominal capacity l0.4 0.4 0.4 0.4 0.4
Versions
Connected load adjustable - - - X -
Temperature setting range °C 30 - 60 30 - 60 30 - 60 30 - 60 30 - 60
Safety category 1 1 1 1 1
Insulating block Plastic Plastic Plastic Plastic Plastic
Heating system heat generator Bare wire Bare wire Bare wire Bare wire Bare wire
Cover and back panel Plastic Plastic Plastic Plastic Plastic
Colour White White White White White
IP rating IP25 IP25 IP25 IP25 IP25
Dimensions
Height mm 478 478 478 478 478
Width mm 225 225 225 225 225
Depth mm 105 105 105 105 105
Weights
Weight kg 3.6 3.6 3.6 3.6 3.6
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 grant
-
ed 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 aect 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.
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 grant-
ed 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 aect 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.
GUARANTEE
ENVIRONMENT AND RECYCLING



Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße 33 | 37603 Holzminden
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.de
Verkauf Tel. [phone] | Fax [phone] | [email protected]
Kundendienst Tel. [phone] | Fax [phone] | [email protected]
Ersatzteilverkauf Tel. [phone] | Fax [phone] | [email protected]
Irrtum und technische Änderungen vorbehalten! | Subject to errors and technical changes! | Sous réserve
d‘erreurs et de modifications techniques! | Onder voorbehoud van ver
g
issin
g
en en technische wi
j
zi
g
in
g
en! |
Salvo error o modificación técnica! | Excepto erro ou alteração técnica | Zastrzeżone zmian
y
techniczne i
ewentualne błędy | Omyly a technické změny jsou vyhrazeny! | A muszaki változtatások és tévedések
j
o
g
át
fenntartjuk! | Отсутствие ошибок не гарантируется. Возможны технические изменения. | Ch
y
b
y
a
technické zmeny sú vyhradené! Stand 9147
Australia
STIEBEL ELTRON Australia Pty. Ltd.
6 Prohasky Street | Port Melbourne VIC 3207
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel.com.au
Austria
STIEBEL ELTRON Ges.m.b.H.
Gewerbegebiet Neubau-Nord
Margaritenstraße 4 A | 4063 Hörsching
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.at
Belgium
STIEBEL ELTRON bvba/sprl
't Hofveld 6 - D1 | 1702 Groot-Bijgaarden
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.be
China
STIEBEL ELTRON (Guangzhou) Electric
Appliance Co., Ltd.
Rm 102, F1, Yingbin-Yihao Mansion, No. 1
Yingbin Road
Panyu District | 511431 Guangzhou
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebeleltron.cn
Czech Republic
STIEBEL ELTRON spol. s r.o.
K Hájům 946 | 155 00 Praha 5 - Stodůlky
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.cz
Finland
STIEBEL ELTRON OY
Kapinakuja 1 | 04600 Mäntsälä
Tel. [phone]
[email protected]
www.stiebel-eltron.fi
France
STIEBEL ELTRON SAS
7-9, rue des Selliers
B.P 85107 | 57073 Metz-Cédex 3
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.fr
Hungary
STIEBEL ELTRON Kft.
Gyár u. 2 | 2040 Budaörs
Tel. [phone] | Fax [phone]
[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. [phone] | Fax [phone]
[email protected]
www.nihonstiebel.co.jp
Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36 | 5222 BH 's-Hertogenbosch
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.nl
Poland
STIEBEL ELTRON Polska Sp. z O.O.
ul. Działkowa 2 | 02-234 Warszawa
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.pl
Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street 4,
building 2 | 129343 Moscow
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.ru
Slovakia
TATRAMAT - ohrievače vody s.r.o.
Hlavná 1 | 058 01 Poprad
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.sk
Switzerland
STIEBEL ELTRON AG
Industrie West
Gass 8 | 5242 Lupfig
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.ch
Thailand
STIEBEL ELTRON Asia Ltd.
469 Moo 2 Tambol Klong-Jik
Amphur Bangpa-In | 13160 Ayutthaya
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebeleltronasia.com
United Kingdom and Ireland
STIEBEL ELTRON UK Ltd.
Unit 12 Stadium Court
Stadium Road | CH62 3RP Bromborough
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron.co.uk
United States of America
STIEBEL ELTRON, Inc.
17 West Street | 01088 West Hatfield MA
Tel. [phone] | Fax [phone]
[email protected]
www.stiebel-eltron-usa.com
A 296851-40057-9254 B 296850-400002-9245 M
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