STIEBEL ELTRON DCE-S 6/8 Plus User manual

OPERATION AND INSTALLATION
UTILISATION ET INSTALLATION
OPERACIÓN E INSTALACIÓN
RUKOVANJE I INSTALACIJA
ΧΕΙΡΙΣΜΌΣ ΚΑΙ ΕΓΚΑΤΑΣΤΑΣΗ
ЭКСПЛУАТАЦИЯ И УСТАНОВКА

Electronically controlled compact instantaneous water heater | Chauffe-eau
instantané compact à régulation électronique | Calentador instantáneo compacto

Ηλεκτρονικά ελεγχόενο κόπακτ στιγιαίο θεραντήρα ροή |  
    | 
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CONTENTS
SPECIAL INFORMATION
OPERATION
1. General information �����������������������������������������3
1.1 Safety instructions����������������������������������������������� 3
1.2 Other symbols in this documentation ����������������������� 4
1.3 Units of measurement ������������������������������������������ 4
2. Safety����������������������������������������������������������4
2.1 Intended use������������������������������������������������������ 4
2.2 General safety instructions ������������������������������������ 4
2.3 Test symbols ������������������������������������������������������ 4
3. Appliance description ���������������������������������������4
3.1 Selecting the set temperature��������������������������������� 5
3.2 Recommended settings ���������������������������������������� 5
4. Cleaning, care and maintenance ���������������������������5
5. Troubleshooting ����������������������������������������������5
INSTALLATION
6. Safety����������������������������������������������������������6
6.1 General safety instructions ������������������������������������ 6
6.2 Shower operation������������������������������������������������ 6
6.3 Instructions, standards and regulations �������������������� 6
7. Appliance description ���������������������������������������6
7.1 Standard delivery������������������������������������������������ 6
7.2 Accessories�������������������������������������������������������� 6
8. Preparation ���������������������������������������������������6
8.1 Installation site��������������������������������������������������� 6
8.2 Minimum clearances�������������������������������������������� 7
8.3 Water installation������������������������������������������������ 7
9. Installation����������������������������������������������������7
9.1 Standard installation on finished walls ��������������������� 7
10. Commissioning �����������������������������������������������9
10.1 Internal anti-scalding protection via jumper slot ��������� 9
10.2 Changing the connected load via the jumper slot��������� 9
10.3 Initial start-up���������������������������������������������������� 9
10.4 Recommissioning����������������������������������������������� 10
11. Appliance shutdown ��������������������������������������� 10
12. Alternative installation methods ������������������������� 10
12.1 Electrical connection from above on unfinished walls�� 10
12.2 Electrical connection from below on unfinished walls�� 11
12.3 Electrical connection with short power cable ������������ 11
12.4 Electrical connection from the side on finished walls��� 11
12.5 Water installation on unfinished walls ��������������������� 11
12.6 Operation with preheated water ���������������������������� 12
13. Service information���������������������������������������� 12
14. Troubleshooting �������������������������������������������� 13
15. Maintenance ������������������������������������������������ 13
15.1 Draining the appliance ���������������������������������������� 13
15.2 Cleaning the strainer������������������������������������������� 13
16. Specification ������������������������������������������������ 14
16.1 Dimensions and connections��������������������������������� 14
16.2 Wiring diagram ������������������������������������������������� 15
16.3 DHW output������������������������������������������������������ 15
16.4 Application areas/ conversion table ����������������������� 15
16.5 Pressure drop ��������������������������������������������������� 15
16.6 Fault conditions ������������������������������������������������� 15
16.7 Energy consumption data������������������������������������� 16
16.8 Data table �������������������������������������������������������� 16
GUARANTEE
ENVIRONMENT AND RECYCLING

ENGLISH
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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 potential risks. Children must
never play with the appliance. Cleaning and
user maintenance must not be carried out by
children without supervision.
- During operation, the tap can reach tempera-
tures up to 70°C. There is a risk of scalding at
outlet temperatures in excess of 43°C.
- The appliance is suitable for supplying a
shower (shower operation). If the appliance
is also or exclusively used for shower opera-
tion, the qualified contractor must adjust the
temperature setting range to 55°C or less
using the internal anti-scalding protection on
the appliance. When using preheated water,
ensure that the inlet temperature does not ex-
ceed 55°C.
- Ensure the appliance can be separated from
the power supply by an isolator that discon-
nects all poles with at least 3mm contact
separation.
- The specified voltage must match the power
supply.
- The appliance must be connected to the earth
conductor.
- The appliance must be permanently connect-
ed to fixed wiring.
- Secure the appliance as described in chapter
"Installation/ Installation".
- Observe the application limits (see chapter
"Installation/ Specification/ Data table").
- 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".
OPERATION
1. General information
The chapters "Special information" and "Operation" are intended
for both users 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.
f 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.
!

OPERATION
Safety
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1.2 Other symbols in this documentation
Note General information is identified by the adjacent symbol.
f Read these texts carefully.
Symbol Meaning
Material losses
(appliance damage, consequential losses and environmen-
tal pollution)
Appliance disposal
f 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 millimetres unless oth-
erwise stated.
2. Safety
2.1 Intended use
This appliance is suitable for heating domestic hot water or for
reheating preheated water. The appliance can supply one or more
draw-off points.
Water will not be reheated if the maximum inlet temperature for
reheating is exceeded.
The appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in non-do-
mestic environments, e.g. in small businesses, as long as it is
used in the same way.
Any other use beyond that described shall be deemed inappro-
priate. Observation of these instructions and of the 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 up
to 70°C.
There is a risk of scalding at outlet temperatures in ex-
cess of 43°C.
CAUTION Burns If children or persons with limited physical, sensory
or mental capabilities use the appliance, a permanent
and unchangeable temperature limit is necessary. Ask
a qualified contractor to set the internal anti-scalding
protection.
CAUTION Burns If operating with preheated water, e.g. if using a solar
thermal system, observe the following information:
The DHW temperature may exceed the set temperature
or a set temperature limit.
f In this case, limit the temperature with an upstream
central thermostatic valve.
!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 potential risks. Children must never play
with the appliance. Cleaning and user maintenance must
not be carried out by children without supervision.
!Material losses
The user should protect the appliance and its tap against
frost.
Note In order to comply with protection rating IP25, coun-
tersunk screws must be used to secure the appliance to
the wall.
2.3 Test symbols
See type plate on the appliance.
3. Appliance description
The appliance switches on automatically as soon as you open the
hot water valve on the tap. When you close the tap, the appliance
switches off again automatically.
The appliance heats water as it flows through it. The set tempera-
ture is adjustable. Upwards of a certain flow rate, the control unit
selects the required heating output, subject to the temperature
selected and the cold water temperature.
The compact instantaneous water heater with electronic control
and automatic output matching maintains a consistent outlet
temperature. It is irrespective of the inlet temperature, up to the
maximum output of the appliance.
If the appliance is operated with preheated water and the inlet
temperature exceeds the set temperature, the water is not heated
further.
Heating system
The bare wire heating system is enclosed within a pressure-tested
plastic jacket. The heating system with its stainless steel heater
spiral is suitable for hard and soft water areas and is largely in-
susceptible to scale build-up. The heating system ensures rapid
and efficient DHW provision.
!

OPERATION
Cleaning, care and maintenance
ENGLISH
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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 heating operation for one minute to protect
the heating system.
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 by taking the following steps.
f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f Vent the appliance and the cold water inlet line (see
chapter "Installation/ Commissioning/ Initial start-
up").
f Switch the power back ON.
3.1 Selecting the set temperature
1
D0000082927
1 Temperature selector for selecting the set temperature
3.2 Recommended settings
Your instantaneous water heater offers maximum precision and
maximum convenience in DHW provision. Should you nonetheless
operate the appliance with a thermostatic valve, we recommend
that you:
f Adjust the set temperature on the appliance to over 50°C.
Then set the required set temperature on the thermostatic
valve.
Saving energy
The following recommended settings will result in the lowest en-
ergy consumption:
- 38°C for hand washbasins, showers, bath
- 55°C for kitchen sinks
Temperature limit via internal anti-scalding protection
(qualified contractor)
If required, the qualified contractor can set a permanent temper-
ature limit, for example in nurseries, hospitals,etc.
When supplying a shower, the appliance temperature setting
range must be adjusted by the qualified contractor to 55°C or less.
Limiting it in this way prevents water from flowing out of the
appliance at temperatures which could cause injury.
Recommended setting for operation with a thermostatic valve
and water preheated by solar energy
f Set the temperature at the appliance to the maximum
temperature.
4. Cleaning, care and maintenance
f Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
f Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
5. 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 board.
The aerator in the tap
or the shower head is
scaled up or dirty.
Clean and/or descale the
aerator or shower head.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line
(see chapter "Installa-
tion/ Commissioning/
Initial start-up").
When hot water is being
drawn off, cold water
flows for a short period.
The air sensor is detect-
ing air in the water. It
briefly switches off the
heating output.
The appliance restarts
automatically after
1minute.
Boiling noises are heard
during operation.
The appliance is not
vented.
Vent the appliance (see
chapter "Installation/
Commissioning/ Initial
start-up").
The supply pressure is
too low.
Ensure that the mini-
mum supply pressure is
achieved (see chapter
"Installation/ Specifica-
tion/ Data table").
The required tempera-
ture cannot be set.
Internal anti-scalding
protection is activated.
The internal anti-scald-
ing protection can only
be adjusted by qualified
contractors.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-000000).
Nr.: 000000-0000-00000
D0000073621

INSTALLATION
Safety
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INSTALLATION
6. Safety
Only a qualified contractor should carry out installation, commis-
sioning, 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.
!Material losses
Observe the maximum inlet temperature. Higher tem-
peratures may damage the appliance. You can limit the
maximum inlet temperature by installing a central ther-
mostatic valve.
WARNING Electrocution This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed60VDC.
6.2 Shower operation
CAUTION Burns f When supplying a shower, set the internal anti-
scalding protection to 55°C or less; see chapter
"Commissioning/ Preparations".
CAUTION Burns If operating with preheated water, e.g. if using a solar
thermal system, observe the following information:
The DHW temperature may exceed the set temperature
or a set temperature limit.
f In this case, limit the temperature with an upstream
central thermostatic valve.
6.3 Instructions, standards and regulations
Note Observe all applicable national and regional regulations
and instructions.
- The protection rating IP25 (hoseproof) is only guaranteed
with a properly fitted cable grommet and the use of counter-
sunk screws Ø4.5mm with a max. head diameter of 9mm.
- The electrical resistivity of the water must not fall below that
stated on the type plate. In a linked water network, take into
consideration the lowest electrical resistivity of the water.
Your water supply utility will advise you of the electrical re-
sistivity or conductivity of the water in your area.
7. Appliance description
7.1 Standard delivery
The following are delivered with the appliance:
- 2 x 45° twin connectors
- 2 flat gaskets
- 2 O-rings
- Cable grommet
- Strainer
- Flow limiter
- Jumper for anti-scalding protection, attached
- Jumper for output changeover, attached
7.2 Accessories
Installation kit for water installation on unfinished walls
(200016 - UP-Kit EU)
The installation kit for water installation on unfinished walls con-
tains:
- 2 x grommets to seal the apertures in the appliance back
panel.
- Strainer with sealed edge for installation on the 45°twin
connector.
- Flat gasket
8. Preparation
8.1 Installation site
!Material losses
Install the appliance in a room that is free from the risk
of frost.
f Always install the appliance vertically and near the draw-off
point.
The appliance is suitable for undersink and oversink installation.
Undersink installation
D0000073616
1
2
1 Cold water inlet
2 DHW outlet

INSTALLATION
Installation
ENGLISH
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Oversink installation
12
D0000073617
1 Cold water inlet
2 DHW outlet
Note f Install the appliance flush to the wall. The wall must
have sufficient load bearing capacity.
8.2 Minimum clearances
≥50≥50
≥50
≥100
D0000079442
f Maintain the minimum clearances to ensure trouble-free op-
eration of the appliance and facilitate maintenance work.
8.3 Water installation
!Material losses
Carry out all water connection and installation work in
accordance with regulations.
f Flush the water line thoroughly.
Taps
Use appropriate pressure taps. Open vented taps are not per-
missible.
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 systems are used, take into account
the maximum inlet temperature and the maximum per-
missible pressure.
Flow rate
f Ensure that the flow rate for switching on the appliance is
achieved.
f If the required flow rate is not achieved when the draw-off
valve is fully open, remove the flow limiter from the cold
water inlet.
If required, the pressure in the water installation can also be raised.
9. Installation
Factory settings DCE-S 6/8
Plus
DCE-S 10/12
Plus
Internal anti-scalding protection in °C 60 60
Connected load in kW @ 220V 8.0 12.0
@ 230V 8.7 13.1
@ 240V 9.6 14.3
Standard installation DCE-S 6/8
Plus
DCE-S 10/12
Plus
Electrical connection from below, installa-
tion on finished walls
x x
Water connection, installation on finished
walls
x x
For further installation options, see chapter "Alternative instal-
lation methods".
9.1 Standard installation on finished walls
Opening the appliance
D0000073641
f Open the appliance by undoing the screw and lifting up the
appliance cover.
Preparing the power cable
B
A
D0000077179
f Prepare the power cable.
Position on finished walls Dimension A Dimension B
Bottom, centre 30 120
Bottom, left side of appliance 20 90
Bottom, right side of appliance 20 90
Top, right side of appliance 20 80
Position on unfinished walls Dimension A Dimension B
Bottom 20 90
Top 20 80

INSTALLATION
Installation
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Preparation
D0000077976
4
3
2
1
57 6
1 Strainer
2 Flow limiter
3 O-rings
4 45° twin connector
5 Flat gaskets
6 Cable grommet
7 Locking screws
f Undo the locking screws.
D0000085450
f Push/break out the required apertures where marked on the
appliance back panel for the power cable and twin connec-
tors. Use a suitable flat tool when doing so. Deburr any sharp
edges with a file.
f Remove the transport protection plugs from the water con-
nection pipes.
f Cut a hole in the cable grommet to fit the selected connecting
cable. Fit the cable grommet.
f Fit the O-rings into the groove on the twin connectors.
f Push the twin nipples into the apertures in the appliance
back panel and fit them to the appliance connection pipes
using flat gaskets (torque 8Nm).
f Secure the twin connectors with the locking screws.
f Insert the flow limiter and strainer in the twin connector of
the cold water connection. Note the orientation of the flow
limiter.
Installing the appliance
f Push/break out the lower slots (175mm apart) in the back
panel for securing the appliance (for positions, see chapter
"Specification/ Dimensions and connections"). The upper two
fixing holes are already open.
f Mark out the 4drilling positions with reference to the appli-
ance back panel.
f Drill the holes and secure the appliance using suitable fixing
materials (screws and rawl plugs are not part of the standard
delivery): Countersunk screw, Ø4.5mm, max. diameter of
screw-head 9mm.
D0000073844
f Fit a suitable pressure tap.
f Fit the water supply pipes for the valve (not included in
standard delivery) to the twin connectors using the flat
gaskets.
f Open the shut-off valve in the cold water inlet line.
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 is only permissible
as 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 rated voltage must
match the mains voltage.
f Push the power cable through the cable grommet.
f Connect the power cable to the mains terminal (see chapter
"Installation/ Specification/ Wiring diagram").

INSTALLATION
Commissioning
ENGLISH
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10. Commissioning
10.1 Internal anti-scalding protection via jumper
slot
43°C | 109°F
50°C | 122°F
55°C | 131°F
60°C | 140°F
D0000073624
f Install the jumper in the required position on the "Tmax" pin
strip.
Jumper position Description
43°C | 109°F Forexample in nurseries, hospitals, etc.
50°C | 122°F
55°C | 131°F Max. for shower operation
60°C | 140°F Factory setting
No jumper Limit 43°C | 109°F
CAUTION Burns If operating with preheated water, e.g. if using a solar
thermal system, the internal anti-scalding protection can
be overridden.
f In this case, limit the temperature with an upstream
central thermostatic valve.
10.2 Changing the connected load via the jumper
slot
If you select a connected load other than the factory setting for
the appliance, you will need to reposition the jumper.
1
2
D0000082938
f Install the jumper in the required position on the "Pmax" pin
strip.
Jumper position Connected load
DCE-S 6/8 Plus DCE-S 10/12 Plus
1 [low] @ 220V 6.0kW 10.0kW
@ 230V 6.6kW 11.0kW
@ 240V 7.2kW 12.0kW
2 [high] @ 220V 8.0kW 12.0kW
Factory setting @ 230V 8.7kW 13.1kW
@ 240V 9.6kW 14.3kW
No jumper [low] @ 220V 6.0kW 10.0kW
@ 230V 6.6kW 11.0kW
@ 240V 7.2kW 12.0kW
10.3 Initial start-up
f Tick the selected connected load on the type plate. Use a
ballpoint pen to do this.
≥ 3 min.
on
15 x
off
D0000101520
f Open and close all connected draw-off valves 15 times
over a period of at least 3 minutes, until all air has been
purged from the pipework and the appliance. Vent the cold
water inlet line and the appliance using a flow rate of least
3.5l/min.
f Carry out a tightness check.
D0000073622
f Activate the safety switch by firmly pressing the reset button
(the appliance is delivered with the safety switch disabled).
D0000082937
f Insert the plug of the programming unit connecting cable at
the PCB.
Note It is essential to plug the connecting cable for the pro-
gramming unit into the PCB before switching on the
power. Otherwise, the programming unit will not func-
tion.

INSTALLATION
Appliance shutdown
10 | DCE-S Plus www.stiebel-eltron.com
D0000073642
f Hook the appliance cover into the appliance back panel at the
top rear. Pivot the appliance cover downwards. Check that
the appliance cover is securely seated both top and bottom.
f Secure the appliance cover with the screw.
f Remove the protective film from the user interface.
D0000053281
f Switch on the power supply.
f Ensure that the programming unit is functioning correctly.
D0000084891
f Turn the temperature selector to its left-hand and right-hand
end-stop.
10.3.1 Appliance handover
f Explain the appliance function to users and familiarise them
with how it works.
f Make the user aware of potential dangers, especially the risk
of scalding.
f Hand over the instructions.
10.4 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 by taking the following steps.
f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f Vent the appliance and the cold water inlet line (see
chapter "Commissioning/ Initial start-up").
f Switch the power back ON.
11. Appliance shutdown
f Isolate all poles of the appliance from the power supply.
f Drain the appliance (see chapter "Maintenance/ Draining the
appliance").
12. Alternative installation methods
WARNING Electrocution Before performing any work on the appliance, discon-
nect all poles from the power supply.
12.1 Electrical connection from above on unfinished
walls
D0000073620
2
1
1 Cable grommet
2 Cable routing
f Break out the required aperture in the back panel for the
power cable (for positions, see chapter "Specification/ Di-
mensions and connections"). Deburr any sharp edges with a
file.
f Cut a hole in the cable grommet to fit the selected connecting
cable. Fit the cable grommet.
f Reposition the mains terminal from the bottom to the top.
To do so, unclip the mains terminal by pushing it firmly to
the left and pulling it forwards. Turn the mains terminal with
connecting cables 180° clockwise. Lay the internal wiring
under the cable guide. Clip the mains terminal in by pushing
it inwards and to the left until it clicks into place.
f Install the appliance and connect the power cable to the
mains terminal as described in chapter "Installation/ Stand-
ard installation on finished walls".
Note Disconnecting the mains terminal at the top:
f Use a screwdriver to disengage the locking tab from
the right-hand side.

INSTALLATION
Alternative installation methods
ENGLISH
www.stiebel-eltron.com DCE-S Plus | 11
12.2 Electrical connection from below on unfinished
walls
D0000079465
1
1 Cable grommet
f Break out the required aperture in the back panel for the
power cable (for positions, see chapter "Specification/ Di-
mensions and connections"). Deburr any sharp edges with a
file.
f Cut a hole in the cable grommet to fit the selected connecting
cable. Fit the cable grommet.
f Install the appliance and connect the power cable to the
mains terminal as described in chapter "Installation/ Stand-
ard installation on finished walls".
12.3 Electrical connection with short power cable
If the power cable is not quite long enough, you can install the
mains terminal in the appliance a little closer to the aperture.
D0000073648
1
1 Cable grommet
f Reposition the mains terminal from the top to the bottom. To
do so, unclip the mains terminal by pushing it firmly to the
left and pulling it forwards. Clip the mains terminal in at the
bottom by pushing it inwards and to the left until it clicks
into place.
12.4 Electrical connection from the side on finished
walls
f Cut and break out the required aperture in the appliance
back panel and appliance cover for the power cable (for po-
sitions, see chapter "Specification/ Dimensions and connec-
tions"). Deburr any sharp edges with a file.
f Install the appliance and connect the power cable to the
mains terminal as described in chapter "Installation/ Stand-
ard installation on finished walls".
12.5 Water installation on unfinished walls
You will need the appropriate accessories to carry out the in-
stallation. The installation kit for water installation on unfinished
walls contains:
- 2 x grommets to seal the apertures in the appliance back
panel.
- Strainer with sealed edge for installation on the 45°twin
connector.
- Flat gasket
In addition, you will need the flow limiter included in the appliance
standard delivery.
Preparation
44-46
D0000073660
f Insert and seal the 45°twin connectors.
To break out the apertures in the appliance back panel, you will
need to remove the function module from the back panel.
1.
4.
5.
2.
3.
D0000077971
f Undo the screw and disengage the locking tab.
f Push the function module on the back panel gently
backwards.
f Remove the function module from the appliance back panel
by pulling it slightly forwards and lifting it off.
f Push/break out the required apertures for the water connec-
tions in the back panel from behind (for positions, see chap-
ter "Specification/ Dimensions and connections"). Deburr any
sharp edges with a file.

INSTALLATION
Service information
12 | DCE-S Plus www.stiebel-eltron.com
1.
2.
3.
4.
D0000077974
1 2 3
4
5
1 Flow limiter
2 O-ring
3 Cold water pipe bend with recess for spring clip
4 Spring clip
5 Heater
f Remove the cold water pipe bend and the O-ring.
f Insert the flow limiter (part of the appliance standard deliv-
ery) in the cold water inlet of the heater. Note the orientation.
f Fit the cold water pipe bend with the O-ring.
!Material losses
The O-ring must be fitted to prevent the appliance from
leaking.
f As part of installation, check that the O-ring is in
place.
f Secure the cold water pipe bend with the spring clip.
!Material losses
Ensure that the spring clip is located behind the recess
in the pipe bend and that it is securely holding the pipe
bend in place.
f Fit the function module on the appliance back panel in re-
verse order until it clicks into place.
f Secure the function module with the screw.
Installing the appliance
D0000073842
321
1 Grommets
2 Flat gasket
3 Strainer with sealed edge
f Mark out the 2drilling positions in the upper section of the
appliance back panel with reference to the appliance back
panel.
f Fit the grommets in the appliance back panel from the front.
f Drill the holes and secure the appliance using suitable fixing
materials (screws and rawl plugs are not part of the standard
delivery): Countersunk screw, Ø4.5mm, max. diameter of
screw-head 9mm.
Note f Install the appliance flush to the wall. If necessary,
additionally secure the appliance at the 2 lower
attachment points. To do this, push/break out the
lower slots (175mm apart) in the appliance back
panel (for positions, see chapter "Specification/ Di-
mensions and connections").
f Remove the transport protection plugs from the water con-
nection pipes.
f Secure the DHW connection pipe with a flat gasket and the
cold water inlet line with the sealed-edge strainer (from the
accessories) to the twin connectors.
12.6 Operation with preheated water
You can limit the maximum inlet temperature by installing a cen-
tral thermostatic valve.
13. Service information
Connection overview/ component overview
D0000082950
1
2
3
4
5
6
1 Flow meter
2 High limit safety cut-out, automatic reset
3 NTC sensor
4 Pin strips for connected load and anti-scalding protection
5 Programming unit plug-in position
6 Diagnostic traffic lights

INSTALLATION
Troubleshooting
ENGLISH
www.stiebel-eltron.com DCE-S Plus | 13
14. Troubleshooting
WARNING Electrocution To test the appliance, it must be connected to the power
supply.
Note When testing the appliance using the diagnostic traffic
lights, water must be flowing.
Signals of the diagnostic traffic lights (LED)
Red Lights up in the event of a fault
Yellow Lights up in heating mode/flashes when output limit
reached
Green Flashing: Appliance connected to power supply
Diagnostic traffic
lights (draw-off mode)
Fault Cause Remedy
No LED illuminates Appliance does not heat up One or more power supply phases are missing Check the fuses in the distribution board
PCB faulty Replace the function module
Green flashing, yellow off,
red off
No DHW Appliance starting flow rate not reached; shower
head/aerator scaled up
Descale/replace the shower head/aerator
Appliance starting flow rate not reached; strainer
in cold water inlet dirty
Cleaning the strainer
Flow meter not plugged in Check plug-in connection; correct if necessary
Flow meter faulty or dirty Replace flow meter
PCB faulty Replace the function module
Green flashing, yellow on,
red off
No DHW; outlet temperature
does not match set value
Tap faulty Replace tap
Programming unit connected to the PCB after
switching on the power supply
Switch the fuses in the distribution board off and
back on again
Outlet sensor faulty Replace outlet sensor
Heating system faulty Replace the function module
PCB faulty Replace the function module
Green flashing, yellow off,
red on
No DHW; outlet temperature
does not match set value
Air detection has responded Continue draw-off for >1min
Safety switch not activated during "Commission-
ing"
Activate the safety switch by firmly pressing the
reset button
Safety switch was triggered by high limit safety
cut-out
Check high limit safety cut-out (plug-in connec-
tion, connecting cable); activate safety switch
Safety switch responds again after high limit
safety cut-out has been checked; high limit safety
cut-out faulty
Replace high limit safety cut-out; activate safety
switch and draw-off with maximum set value
>1min
Safety switch responds again; PCB faulty Replace the function module
Short circuit in outlet sensor Check outlet sensor; replace if necessary
PCB faulty Replace the function module
15. Maintenance
WARNING Electrocution Before performing any work on the appliance, discon-
nect all poles from the power supply.
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed60VDC.
15.1 Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns Hot water may escape when you drain the appliance.
f Close the shut-off valve in the cold water inlet line.
f Open all draw-off valves.
f Undo the water connections on the appliance.
f Store the dismantled appliance free from the risk of frost, as
water residues remaining inside the appliance can freeze and
cause damage.
15.2 Cleaning the strainer
WARNING Burns Hot water may escape when you drain the appliance.
!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 recommissioned by taking the follow-
ing steps.
f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f Vent the appliance and the cold water inlet line (see
chapter "Commissioning/ Initial start-up").
f Switch on the power supply again.
The strainer in the cold water threaded fitting must be cleaned
regularly.

INSTALLATION

14 | DCE-S Plus www.stiebel-eltron.com
15.2.1 Cleaning the strainer, standard installation on finished
walls
f Isolate the appliance from the power supply.
f Close the shut-off valve in the cold water inlet line.
f Open all draw-off valves.
f Remove the cold water threaded fitting.
f Remove the strainer from the twin nipple using a flat-blade
screwdriver. Clean the strainer.
f Reinsert the strainer. Screw the cold water connection pipe
onto the twin nipple.
f Open the shut-off valve in the cold water inlet line.
f Vent the appliance and the cold water inlet line (see chapter
"Commissioning/ Initial start-up").
f Switch on the power supply.
15.2.2 Cleaning the strainer, installation on unfinished walls
f Isolate the appliance from the power supply.
f Close the shut-off valve in the cold water inlet line.
f Open all draw-off valves.
f Open the appliance by undoing the screw and lifting up the
appliance cover.
f Unscrew the cold water connection pipe from the twin nip-
ple. Pivot the cold water connection pipe upwards.
f Remove the strainer from the twin nipple. Clean the strainer.
f Screw the cold water connection pipe and the strainer with
sealed edge onto the twin nipple.
f Open the shut-off valve in the cold water inlet line.
f Vent the appliance and the cold water inlet line (see chapter
"Commissioning/ Initial start-up").
f Check the cold water connection for leaks.
f Hook the appliance cover into the appliance back panel at the
top rear. Pivot the appliance cover downwards. Check that
the appliance cover is securely seated both top and bottom.
Secure the appliance cover with the screw.
f Switch on the power supply.
16. Specification
16.1 Dimensions and connections
372
358 343
14
97
217
140
175
100
c01c06
35
32
109
b02
380
D0000073693
DCE-S Plus
b02 Entry for electrical cables I Finished walls
c01 Cold water inlet Male thread G 1/2 A
c06 DHW outlet Male thread G 1/2 A
Alternative connection options
100
c01c06
b02
72
330
b02
b02
69
35
336
b02
b03
30
61
15
b03
D0000073720
DCE-S Plus
b02 Entry for electrical cables I Finished walls
b03 Entry for electrical cables II Unfinished walls
c01 Cold water inlet Male thread G 1/2 A
c06 DHW outlet Male thread G 1/2 A

INSTALLATION

ENGLISH
www.stiebel-eltron.com DCE-S Plus | 15
16.2 Wiring diagram
DCE-S Plus
L L
2/GRD ~ 220 - 240 V
L N
1/N/PE ~ 220 - 240V
N
L
L
L
D0000077991
1
3
4
2
1 Power PCB with integral safety switch
2 Bare wire heating system
3 High limit safety cut-out
4 Mains terminal
16.3 DHW output
The DHW output is subject to the connected power supply, the
appliance's connected load and the cold water inlet temperature.
The rated voltage and rated output can be found on the type plate.
Connected load in kW 
Rated voltage Cold water inlet temperature
      
DCE-S 6/8 Plus
6.0 2.6 3.1 3.7 4.8
8.0 3.5 4.1 5.0 6.3
6.6 2.9 3.4 4.1 5.2
8.7 3.8 4.4 5.4 6.9
7.2 3.1 3.7 4.5 5.7
9.6 4.2 4.9 6.0 7.6
DCE-S 10/12 Plus
10.0 4.3 5.1 6.2 7.9
12.0 5.2 6.1 7.5 9.5
11.0 4.8 5.6 6.8 8.7
13.1 5.7 6.7 8.1 10.4
12.0 5.2 6.1 7.5 9.5
14.3 6.2 7.3 8.9 11.3
Connected load in kW 
Rated voltage Cold water inlet temperature
      
DCE-S 6/8 Plus
6.0 1.9 2.1 2.4 2.9
8.0 2.5 2.9 3.3 3.8
6.6 2.1 2.4 2.7 3.1
8.7 2.8 3.1 3.6 4.1
7.2 2.3 2.6 2.9 3.4
9.6 3.0 3.4 3.9 4.6
DCE-S 10/12 Plus
10.0 3.2 3.6 4.1 4.8
12.0 3.8 4.3 4.9 5.7
11.0 3.5 3.9 4.5 5.2
13.1 4.2 4.7 5.3 6.2
12.0 3.8 4.3 4.9 5.7
14.3 4.5 5.1 5.8 6.8
16.4 Application areas/ conversion table
Electrical resistivity and electrical conductivity.
Standard specifica-
  
Resis-
tivity
ρ≥
Conductivity ≤ Resis-
tivity
ρ≥
Conductivity ≤ Resis-
tivity
ρ≥
Conductivity ≤
Ωcm mS/m μS/cm Ωcm mS/m μS/cm Ωcm mS/m μS/cm
1100 91 910 970 103 1031 895 112 1117
16.5 Pressure drop
Taps
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 Fault conditions
In the event of a fault, loads up to 80°C at a pressure of 1.0MPa
can occur briefly in the installation.

INSTALLATION

16 | DCE-S Plus www.stiebel-eltron.com
16.7 Energy consumption data
Product datasheet: Conventional water heaters to regulation (EU) no. 812/2013 | 814/2013
DCE-S 6/8 Plus DCE-S 10/12 Plus
238153 238154
Manufacturer STIEBEL ELTRON STIEBEL ELTRON
Load profile XS XS
Energy efficiency class A A
Energy conversion efficiency %39 39
Annual power consumption kWh 472 474
Default temperature setting °C 60 60
Sound power level dB(A) 15 15
Special information on measuring efficiency Measured with integral flow limiter,
maximum output and maximum set value
Measured with integral flow limiter,
maximum output and maximum set value
Daily power consumption kWh 2.161 2.174
16.8 Data table
DCE-S 6/8 Plus DCE-S 10/12 Plus
238153 238154
Electrical data
Rated voltage V220 230 240 220 230 240
Rated output kW 6.0/8.0 6.6/8.7 7.2/9.6 10.0/12.0 11.0/13.1 12.0/14.3
Rated current A27.3/36.4 28.5/38.0 30.0/40.0 45.5/54.5 47.8/57.0 50.0/59.6
Fuse protection A30/40 50/60
Frequency Hz 50/60 50/60
Phases 1/N/PE 1/N/PE
Resistivity ρ15 ≥ Ω cm 1100 1100
Conductivity 15 ≤ μS/cm 910 910
Max. mains impedance at 50Hz Ω 0.0385 0.0368 0.0353 0.0257 0.0245 0.0235
Connections
Water connection G 1/2 A G 1/2 A
Application limits
Minimum supply pressure MPa 0.18 (1.8 bar / 26 psi) 0.18 (1.8 bar / 26 psi)
Max. permissible pressure MPa 1 (10 bar / 150 psi) 1 (10 bar / 150 psi)
Max. inlet temperature for reheating °C 55 55
Temperature setting range °C 20-60 20-60
Values
Max. inlet temperature (e.g. pasteurisation) °C 70 70
On l/min 1.3 1.3
Flow rate at 28K l/min 3.1/4.1 @ 220V 5.1/6.2 @ 220V
Flow rate at 50K l/min 1.7/2.3 @ 220V 2.9/3.5 @ 220V
Pressure drop for flow rate at 50K (without flow limiter) MPa 0.01/0.01 0.02/0.03
Flow rate limit at l/min 4 5
Hydraulic data
Nominal capacity l0.277 0.277
Versions
Type of installation Oversink/ undersink Oversink/ undersink
Adjustable connected load X X
Protection class 1 1
Insulating block Plastic Plastic
Heating system heat generator Bare wire Bare wire
Cover and back panel Plastic Plastic
Colour White White
IP rating IP25 IP25
Dimensions
Height mm 372 372
Width mm 217 217
Depth mm 109 109
Weights
Weight kg 2.5 2.5
Note The appliance conforms to IEC 61000-3-12.

ENGLISH
www.stiebel-eltron.com DCE-S Plus | 17
GUARANTEE | ENVIRONMENT AND RECYCLING
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.
GUARANTEEGUARANTEE


18 | DCE-S Plus www.stiebel-eltron.com
TABLE DES MATIÈRES | REMARQUES PARTICULIÈRES
REMARQUES PARTICULIÈRES
UTILISATION
1. Remarques générales ������������������������������������� 19
1.1 Consignes de sécurité������������������������������������������ 19
1.2 Autres pictogrammes utilisés dans cette
documentation �������������������������������������������������� 19
1.3 Unités de mesure ����������������������������������������������� 20
2. Sécurité ����������������������������������������������������� 20
2.1 Utilisation conforme ������������������������������������������� 20
2.2 Consignes de sécurité générales ����������������������������20
2.3 Label de conformité �������������������������������������������� 20
3. Description de l’appareil ���������������������������������� 20
3.1 Réglage de la température de consigne ������������������� 21
3.2 Réglages recommandés ��������������������������������������� 21
4. Nettoyage, entretien et maintenance �������������������� 21
5. Dépannage�������������������������������������������������� 21
INSTALLATION
6. Sécurité ����������������������������������������������������� 22
6.1 Consignes de sécurité générales ���������������������������� 22
6.2 Mode douche ���������������������������������������������������� 22
6.3 Prescriptions, normes et réglementations����������������� 22
7. Description de l’appareil ���������������������������������� 22
7.1 Fourniture�������������������������������������������������������� 22
7.2 Accessoires������������������������������������������������������� 22
8. Travaux préparatoires ������������������������������������� 22
8.1 Lieu d’installation����������������������������������������������� 22
8.2 Distances minimales ������������������������������������������� 23
8.3 Installation hydraulique��������������������������������������� 23
9. Montage����������������������������������������������������� 23
9.1 Montage normal en saillie������������������������������������ 23
10. Mise en service��������������������������������������������� 25
10.1 Protection interne anti-ébouillantement par mise en
place de cavalier������������������������������������������������ 25
10.2 Modification du réglage de puissance raccordée par
déplacement du cavalier �������������������������������������� 25
10.3 Première mise en service ������������������������������������� 25
10.4 Remise en marche���������������������������������������������� 26
11. Mise hors service ������������������������������������������ 26
12. Variantes de pose ������������������������������������������ 26
12.1 Raccordement électrique par le haut en installation
encastrée��������������������������������������������������������� 26
12.2 Raccordement électrique sous crépi par le bas ���������� 27
12.3 Raccordement électrique en cas de câble
d’alimentation court ������������������������������������������� 27
12.4 Raccordement électrique en saillie sur le côté ����������� 27
12.5 Installation hydraulique encastrée�������������������������� 27
12.6 Fonctionnement avec de l’eau préchauffée ��������������� 28
13. Informations Service��������������������������������������� 28
14. Aide au dépannage ���������������������������������������� 29
15. Maintenance ������������������������������������������������ 29
15.1 Vidange de l’appareil ������������������������������������������ 29
15.2 Nettoyer le filtre ������������������������������������������������30
16. Données techniques ��������������������������������������� 30
16.1 Cotes et raccordements����������������������������������������30
16.2 Schéma électrique���������������������������������������������� 31
REMARQUES
PARTICULIÈRES
- L’appareil peut être utilisé par des enfants de
3ans et plus ainsi que par des personnes aux
facultés physiques, sensorielles ou mentales
réduites ou par des personnes sans expé-
rience, s’ils sont accompagnés ou qu’ils ont
appris à l’utiliser en toute sécurité, et s’ils ont
compris les dangers encourus. Ne laissez pas
les enfants jouer avec l’appareil. Ne confiez
pas le nettoyage ni les opérations de mainte-
nance réservées aux utilisateurs à des enfants
sans surveillance.
- En fonctionnement, la température de la robi-
netterie peut atteindre 70°C. Risque de brû-
lure à des températures de sortie supérieures
à 43°C.
- Cet appareil convient à l’alimentation d’une
douche (en mode douche). Si l’appareil est
utilisé partiellement ou exclusivement pour
la douche, l’installateur doit régler la plage
de température à 55°C maximum par le biais
de la protection interne anti-ébouillantement.
Dans le cas d’une arrivée d’eau préchauffée, il
faut s’assurer que sa température ne peut pas
dépasser 55°C.
- L’appareil doit pouvoir être mis hors tension
par un dispositif de coupure omnipolaire
ayant une ouverture minimale des contacts de
3mm.
16.3 Capacité de production d’eau chaude ���������������������� 31
16.4 Domaines d’utilisation/ Tableau de conversion���������� 31
16.5 Pertes de charge������������������������������������������������ 31
16.6 Défaillances ������������������������������������������������������ 31
16.7 Indications relatives à la consommation énergétique��� 32
16.8 Tableau de données�������������������������������������������� 32
GARANTIE
PROTECTION DE L’ENVIRONNEMENT ET RECYCLAGE

UTILISATION
Remarques générales
FRANÇAIS
www.stiebel-eltron.com DCE-S Plus | 19
- La tension indiquée doit correspondre à la
tension d’alimentation.
- L’appareil doit être raccordé au conducteur de
mise à la terre.
- L’appareil doit être raccordé en permanence à
un câblage fixe.
- Fixez l’appareil comme indiqué dans le cha-
pitre «Installation/ Montage».
- Respectez les limites d’utilisation (voir le cha-
pitre «Installation/ Données techniques/
Tableau de données»).
- La résistance hydraulique spécifique du ré-
seau de distribution d’eau ne doit pas être
dépassée (voir le chapitre «Installation/ Don-
nées techniques/ Tableau de données»).
- Vidangez l’appareil comme indiqué au cha-
pitre «Installation/ Maintenance / Vidange
de l’appareil».
UTILISATION
1. Remarques générales
Les chapitres «Remarquesparticulières» et «Utilisation »
s’adressent aux utilisateurs de l’appareil et aux installateurs.
Le chapitre «Installation» s’adresse aux installateurs.
Remarque Lisez attentivement cette notice avant l’utilisation et
conservez-la soigneusement.
Le cas échéant, remettez cette notice à tout nouvel uti-
lisateur.
1.1 Consignes de sécurité
1.1.1 Présentation des consignes de sécurité
!MENTION D’AVERTISSEMENT Nature du danger
Sont indiqués ici les risques éventuellement encourus en
cas de non-respect de la consigne de sécurité.
f Indique les mesures permettant de prévenir le dan-
ger.
1.1.2 Symboles, nature du danger
Symbole Nature du danger
Blessure
Électrocution
Brûlure
(brûlure, ébouillantement)
1.1.3 Mentions d’avertissement
MENTION
-
MENT
Signification
DANGER Caractérise des consignes dont le non-respect entraîne de
graves lésions, voire la mort.
AVERTISSEMENT Caractérise des consignes dont le non-respect peut entraî-
ner de graves lésions, voire la mort.
ATTENTION Caractérise des consignes dont le non-respect peut entraî-
ner des lésions légères ou moyennement graves.
1.2 Autres pictogrammes utilisés dans cette
documentation
Remarque Le symbole ci-contre caractérise des consignes générales.
f Lisez attentivement les consignes.
!

UTILISATION
Sécurité
20 | DCE-S Plus www.stiebel-eltron.com
Symbole Signification
Dommages matériels
(dommages touchant à l’appareil, dommages indirects et
pollution de l’environnement)
Recyclage de l’appareil
f Ce symbole signale une action à entreprendre. Les actions
nécessaires sont décrites étape par étape.
1.3 Unités de mesure
Remarque Sauf indication contraire, toutes les cotes sont indiquées
dans l’unité des millimètres.
2. Sécurité
2.1 Utilisation conforme
L’appareil sert au chauffage de l’eau sanitaire ou au chauffage
d’appoint d’une eau préchauffée. L’appareil peut alimenter un ou
plusieurs points de soutirage.
Lorsque la température d’arrivée d’eau maximale pour le chauf-
fage d’appoint est dépassée, ce dernier n’est pas effectué.
L’appareil est conçu pour une utilisation domestique. Il peut être
utilisé sans risque par des personnes qui ne disposent pas de
connaissances techniques particulières. L’appareil peut également
être utilisé dans un environnement non domestique, par exemple
dans de petites entreprises, à condition que son utilisation soit
du même ordre.
Tout autre emploi est considéré comme non conforme. Une uti-
lisation conforme de l’appareil implique également le respect de
cette notice et de celles des accessoires utilisés.
2.2 Consignes de sécurité générales
ATTENTION Brûlure En fonctionnement, la température de la robinetterie
peut atteindre 70°C.
Risque de brûlure à des températures de sortie supé-
rieures à 43°C.
ATTENTION Brûlure Mettez en place une limitation de température perma-
nente et non modifiable si des enfants ou des personnes
aux facultés physiques, sensorielles ou mentales sont
amenés à utiliser l’appareil. Demandez à l’installateur
de régler la protection contre l’ébouillantement.
ATTENTION Brûlure Tenez compte de la remarque suivante en cas de fonc-
tionnement avec de l’eau préchauffée (installation so-
laire par ex.):
La température ECS peut dépasser la température de
consigne ou une limitation de température prédéfinies.
f Dans ce cas, limitez la température à l’aide d’une
robinetterie thermostatique centrale installée en
amont.
!AVERTISSEMENT Blessure
L’appareil peut être utilisé par des enfants de 3ans et
plus ainsi que par des personnes aux facultés physiques,
sensorielles ou mentales réduites ou par des personnes
sans expérience, s’ils sont accompagnés ou qu’ils ont
appris à l’utiliser en toute sécurité, et s’ils ont compris
les dangers encourus. Ne laissez pas les enfants jouer
avec l’appareil. Ne confiez pas le nettoyage ni les opé-
rations de maintenance réservées aux utilisateurs à des
enfants sans surveillance.
!Dommages matériels
L’appareil et la robinetterie doivent être protégés du gel
par l’utilisateur.
Remarque Pour garantir l’indice de protection IP25, il faut utiliser
des vis à tête fraisée pour fixer l’appareil au mur.
2.3 Label de conformité
Voir la plaque signalétique sur l’appareil.
3. Description de l’appareil
L’appareil se met en marche dès que vous ouvrez le robinet d’eau
chaude. Lorsque vous fermez le robinet, l’appareil s’éteint auto-
matiquement.
L’appareil chauffe l’eau pendant qu’elle circule dans l’appareil.
La température de consigne est réglable. À partir d’un certain
débit, la puissance de chauffe nécessaire est régulée en fonction
de la température prédéfinie et de la température de l’arrivée
d’eau froide.
Le chauffe-eau instantané compact à régulation électronique per-
met une adaptation automatique de la puissance et maintient la
température de sortie constante. et ce, indépendamment de la
température d’arrivée d’eau et jusqu’à la puissance maximale de
l’appareil.
Si l’appareil est alimenté avec de l’eau préchauffée et que la tem-
pérature d’arrivée d’eau dépasse la température définie, l’eau
n’est pas chauffée.
Système de chauffe
Système de chauffe à fil nu enveloppé sous une gaine plastique
résistant à la pression. Très résistant à l’entartrage, ce système
de chauffe avec serpentin en acier inoxydable convient indiffé-
remment à l’eau faiblement et fortement calcaire. Ce système de
chauffe permet une alimentation en eau chaude sanitaire rapide
et efficace.
Remarque
L’appareil est équipé d’un détecteur d’air qui prévient en
grande partie l’endommagement du système de chauffe.
Si de l’air pénètre dans l’appareil en cours de fonction-
nement, la puissance de chauffe est désactivée pendant
une minute de manière à protéger le système de chauffe.
!