DeDietrich CESL C50 User manual

The diagram above is just for reference. Please take the
appearance of the actual product as the standard.
Instruction Manual
For Model:
Thank you very much for purchasing our water heater.
Before installing and operating your water heater, please
read this manual carefully and keep it for future reference.
CESL C50
CESL C80
CESL C100

1
The installation and maintenance has to be carried out by qualified professionals or authorized
technicians.
The manufacturer shall not be held responsible for any damage or malfunction caused by wrong
installation or failing to comply with following instructions included in this pamphlet.
For more detailed installation and maintenance guidelines, please refer to below chapters.
TABLE OF CONTENTS
TITLE PAGE
1.SAFETY............................................................................................................................(2)
2.PRODUCT INTRODUCTION ...........................................................................................(7)
3.UNIT INSTALLATION .......................................................................................................(9)
4.COMMISSIONING..........................................................................................................(13)
5.MAINTENANCE .............................................................................................................(15)
6.TROUBLESHOOTING ...................................................................................................(16)
7.PRODUCE INFORMATION WITH EU REGULATION ...................................................(17)
8.SPARE PARTS...............................................................................................................(20)
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General Remark

2
DANGER
This appliance can be used by children aged 8 years and
above and by persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge
when they have been given supervision or instruction
concerning the safe use of the device and understand the
resulting risks. Children must not be allowed to play with
the appliance. Cleaning and user maintenance must not
be carried out by children without supervision.
DANGER OF ELECTRIC SHOCK
Before any work, switch off the mains supply to the
electrical water heater.
CAUTION
Draining the domestic hot water tank:
1. Shut off the domestic cold water inlet.
2. Open a hot water tap in the installation.
3. Open a valve on the safety unit.
4. When the water stops flowing, the domestic hot water
tank has been drained.
CAUTION
The pressure limiter device (safety valve or safety unit)
must be regularly operated in order to remove limescale
deposits and ensure that it is not blocked.
A pressure limiter device must be fitted to a discharge pipe.
As water may flow out of the discharge pipe on the
pressure limiter device, the pipe must be kept open to the
air, in a frost-free environment, and at a continuous
downward gradient.
1. SAFETY
1.1 General safety instructions

A pressure reducer (not provided) is required when the
supply pressure exceeds 80% of the pressure limiter
device calibration and must be located upstream of the appliance.
There must be no cut-off devices between the pressure
limiter device and the domestic hot water tank.
To ascertain the type, specifications and connection of
the pressure limiter device, refer to the chapter
Connecting the Domestic Hot Water Tank to the Drinking
Water Mains in the Installation and Service Manual.
WARNING
Install the appliance in accordance with national rules on
electrical installation. If the appliance is not wired in the
factory, carry out the wiring according to the wiring
diagram described in the chapter Electrical Connections
in the appliance's instructions manual. This appliance
must be connected to the protective earth.
WARNING
Earthing must comply with the prevailing installation
standards. Earth the appliance before making any
electrical connections. Type and calibre of the protective
equipment: refer to the chapter Recommended cable
cross sections. See the Installation and Service Manual.
To connect the appliance to the mains supply, refer to the
chapter Electrical Connections in the appliance's
installation and service manual.
WARNING
Respect the minimum and maximum water pressure and
temperature to ensure the appliance operates correctly.
See chapter on Technical Specifications.
3

WARNING
Allow the space required to install the appliance correctly,
referring to the chapter Dimensions of the Appliance. See
the Installation and Service Manual.
WARNING
A disconnection device must be fitted to the permanent
pipes in accordance with installation rules.
WARNING
If a power supply cable comes with the appliance and it
turns out to be damaged, it must be replaced by the
manufacturer, its after sales service or persons with
similar qualifications in order to obviate any danger.
CAUTION
In order to prevent any danger owing to the unexpected
reset of the thermal circuit breaker, this appliance must
not be powered through an external switch, such as a
timer, or be connected to a circuit which is regularly
switched on and off by the electricity provider.
WARNING
Respect the maximum water inlet pressure to ensure
correct operation of the appliance, referring to the chapter
Technical Specifications.
WARNING
In order to limit the risk of being scalded, the installation
of a thermostatic mixing valve on the domestic hot water
flow pipes is obligatory.
CAUTION
The system must satisfy each point in the rules in force in
the country that govern works and interventions in individual
4

homes, blocks of flats or other buildings.
IMPORTANT
The user guide can also be found on our website.
WARNING
This water heater has a thermostat setting up to 60°C able
to limit legionella proliferation. Take care, from 50°C, water risk
to scalded users.Take care of water temperature before using''
1.2 Recommendations
CAUTION
To benefit from extended warranty cover, no modifications
must be made to the appliance.
IMPORTANT
Keep this document close to the place where the
appliance is installed.
IMPORTANT
Never remove or cover labels and data plates affixed to
the appliances. Labels and data plates must be legible
throughout the entire lifetime of the appliance. Damaged
or illegible instructions and warning stickers must be
replaced immediately.
IMPORTANT
Keep the electrical water heater accessible at all times.
1.3 Liabilities
1.3.1 Manufacturer's liability
Our products are manufactured in compliance with the
requirements of the various Directives applicable. They
are therefore delivered with the CE marking and any
documents necessary. In the interests of the quality of
5

our products, we strive constantly to improve them. We
therefore reserve the right to modify the specifications
given in this document. Our liability as manufacturer may
not be invoked in the following cases:
• Failure to abide by the instructions on installing and
maintaining the appliance.
•Failure to abide by the instructions on using the appliance.
• Faulty or insufficient maintenance of the appliance.
1.3.2 Installer's liability
The installer is responsible for the installation and initial
commissioning of the appliance. The installer must
observe the following instructions:
• Read and follow the instructions given in the manuals
provided with the appliance.
• Install the appliance in compliance with prevailing legislation
and standards.
• Carry out initial commissioning and any checks necessary.
• Explain the installation to the user.
• If maintenance is necessary, warn the user of the obligation
to check the appliance and keep it in good working order.
• Give all the instruction manuals to the user.
1.3.3 User's liability
To guarantee optimum operation of the system, the user
must abide by the following instructions:
• Read and follow the instructions given in the manuals
provided with the appliance.
• Call on a qualified professional to carry out installation
and initial commissioning.
• Ask your installer to explain your installation to you.
• Have the required inspections and maintenance carried
out by a qualifies installer.
•
Keep the instruction manuals in good condition close the appliance.
6

7
2. PRODUCT INTRODUCTION
2.1 Homologations
Specifications LCIE 103–15/B (July 2011) for NF Electricity Performance Marking
This product complies with the requirements of the following NF Electricity Standards:
The unit complies with the standard type described in the EC declaration of conformity. It has been
manufactured and commissioned in accordance with European directives. The original declaration
of conformity is available from the manufacturer.
2.1.3 Electrical Conformity / CE Marking
This product complies with the requirements of the following European Directives and Standards:
2.1.4 2014/68/UE Directive
This product conforms to the requirements of European Directive 2014/68/UE, article 4, paragraph
3, on pressure equipment.
2.1.5 Ecodesign Directive
This product conforms to the requirements of European Directive 2009/125/EC on the ecodesign
of energy-related products.
• EN 60335-1 :2012 + A11 :2014 + A13 :2017 + A1 :2019 + A2 :2019 + A14 :2019
• EN 60335-2-21:2003 + A1:2005 + A2:2008
• EN 62233:2008
• EN 55014-1:2017
• EN 55014-2:2015
• EN 61000-3-2:2019
• EN 61000-3-3 :2013 + A1 :2019
• Low Voltage Directive 2014/35/EU
Generic standard: EN 60335-1
Relevant standards: EN 60335-2-21, EN 60335-2-40
• Electromagnetic Compatibility Directive 2014/30/EU
Generic standards: EN 61000-6-3, EN 61000-6-1
Relevant Standard: EN 55014
2.1.1 NF certification
2.1.2 EC Declaration of Conformity

2.2 Technical Performance Parameters
2.3 Brief introduction of product structure
(Note:All dimensions are in mm)
8
Item CESL C50 CESL C80 CESL C100
Volume(L) 47 74 93
Rated Power(W) 2000 2000 2000
Rated Voltage(V) 220-240 220-240 220-240
Rated Pressure(Mpa) 0.75 0.75 0.75
Max Of Water Temperature(°C) 75 75 75
Protection Class I I I
Water Proof Grade IPX4 IPX4 IPX4
Weight of Empty Product(kg)
25.86 32.45 38.38
Rated Intensity (A)
8.69 8.69 8.69
1.44 2.27 2.86
Heating Time（H）
(15°C to 65°C )EN 60379
A
B
C
D
E
F
CESL C50
355
470
272
860
470
183
CESL C80
415
365
314
900
570
265
CESL C100
415
550
314
1090
570
265
B
AC
D
E
F

2.4 Internal Wire Diagram
3. UNIT INSTALLATION
(Fig.1)
The data plates must be accessible at all times, they are used to identify the product and give the
following information:
• Appliance type,
• Serial number,
• Electrical power supply.
3.1 Position of the data plates
9
WIRING DIAGRAM
Thermal
Cut Out Thermal Cut Out
Power
Indicator
Heating Indicator
Thermostat
Thermostat
Heating Element
Power
Brown
Blue
Yellow/Green
E
N
L
Q Q
01
2
1
0
2
Q
Q
Code: 7755511
N/S:
2000W, 220-240V~
50/60Hz, 0.75MPa
47L
IPX4
UF: N°25334
BDR THERMEA France
57, Rue de la Gare
F-67580 Mertzwiller
CESL C50
7755511 WWYY00000001

10
3.2 General recommendations
①
②
This electrical water heater shall be installed on a solid wall. If the strength of the wall cannot
bear the load equal to two times of the total weight of the heater filled fully with water, it is then
necessary to install a special support.
Incase of hollow bricks wall, ensure to fill it with cement concrete completely.
After selecting a proper location, determine the positons of the two install holes used for
expansion bolts with hook, Make two holes in the wall with the corresponding depth by using a
chopping bit with the size matching the expansion bolts attached with the machine, insert the
screws, make the hook upwards, tighten the nuts to fix firmly, and then hang the electrical
water heater on it (see Fig.2).
(Fig.2)
Expansion bolt (with hook)
The appliances must be installed by a certified professional in accordance with prevailing statutory
texts and codes of practice. The installation must comply on all points with prevailing regulations
and directives, which govern work and interventions in individual homes, blocks of flats and other
buildings. When installing the appliances, respect the protection ratings: IP24 for the domestic hot
water tank and IP24 for the outdoor unit. When choosing the location of the domestic hot water
tank, the outdoor unit and the control panel, the installer must adhere to the following
recommendations:
1. Install a water drain in the boiler room.
2. Ensure there is a funnel-siphon for the safety unit.
3. Install isolation valves.
4. Fit a pressure reducer.
5. Fit a non-return valve to the domestic cold water circuit.
3.3 Installation Instruction

11
3.4 Recommendations
3.4.1 Connecting diagram
1.Domestic hot-water outlet with dielectric union
2.Domestic cold-water inlet with dielectric union
3.Power supply cable for the immersion heater
4.Thermostatic valve
5.Safety unit
6.Pressure reducer
1. Domestic hot water outlet (red color)
2. Domestic cold water inlet (blue color)
2
1
The components used for the connection to the cold water circuit must comply with the prevailing
standards and regulations in the country concerned. The water connections must comply with the
corresponding standards and local directives.
The domestic hot water circuits and cold water feed pipes must be flushed before making any water
connections to prevent metal particles or other contaminants into the domestic hot water tank. If
flushing has to be done using an aggressive product, neutralize the rinsing water before disposing
of it in the waste water network.
12
4
6
5
3

3.4.2 Connecting the domestic hot water circuit
3.4.3 Connecting the domestic hot water circuit
3.4.4 Fill the domestic hot water tank.
12
The dielectric unions are provided in the documentation bag.
1.A dielectric union must be connected using hemp fibre or pipe joint compound, between the water
outlet/inlet of the domestic hot water tank and the pipework to avoid any corrosion at the union.
2.Mount a domestic water thermostatic mixer valve (not provided) on the domestic hot water tank outlet:
• France: The thermostatic mixer valve is mandatory if any tap in the loop is not thermostatic
• Other countries: the thermostatic mixer valve is recommended.
Install a pressure reducer if the mains pressure exceeds 80% of the calibration of the safety
valve or unit (e.g. 0.55 MPa (5.5 bar) for a safety unit calibrated to 0.7 MPa (7 bar)).
Caution
Install the pressure reducer upstream of the appliance and downstream of the water meter in
such a way as to ensure the same pressure in all of the system's pipes.
Install a water drain in the boiler room and a funnel-siphon for the safety unit.
Incorporate a sealed safety valve calibrated to 0.7 MPa (7 bar) (not provided) on the domestic
cold water inlet, close to the tank, in a position which is easy to reach, to protect the domestic
hot water tank from pressure surges.
Caution
There must be no cut-off devices between the safety valve or unit and the domestic hot water tank.
To avoid restricting the flow of water in the event of overpressure: the safety unit discharge
pipe must be kept in the open, in a frost free environment, and have a continuous, downward
gradient; the diameter of the safety unit and its connection to the tank must be at least equal to
the diameter of the domestic cold water inlet on the tank.
Make the connection to the domestic cold water.
When the water and electrical connections are made, fill the domestic hot water tank.
Turn on a hot water tap.
Open the cold water tap located on the safety unit to vent the air in the installation.
Close the hot water tap when water starts to flow from the tap.The domestic hot water tank is full.
Check the tightness of the pipe connections and the correct operation f the hydraulic devices
by successively opening the drain valve on the safety unit.
1.
3.
4.
5.
6.
1.
2.
3.
4.

3.5 Electrical connections
4.1 Initial commissioning
13
4. COMMISSIONING
3.5.1 Electrical recommendations
3.5.2 Electrical recommendations
Only qualified professionals may carry out electrical connections, always with the power off. Separate the
very low voltage cables from the 230V circuit cables. The electrical power supply is done by means of a
mains connection cable (~230 V, 50 Hz) in accordance with prevailing national regulations for electrical
installations. Respect the polarities when making the electrical connections to the mains:
Brown wire (L) : Live
Blue wire (N) : Neutral
Green/yellow wire : Earth
If the power supply cable is damaged, you must have it replaced by a qualified installer.
The 2.5 mm2 section power supply cable for the electrical connection of the domestic hot water tank
must be used by the installer.
Connect the power supply; the indicator will light up this time.
The thermostat will automatically control the temperature. When the water temperature inside the heater
has reached the set temperature, it will switch off automatically, when the water temperature falls below
the set point the heater will be turned on automatically to restore the heating.
Initial commissioning must be performed by a qualified professional.
4.2 Checklist after commissioning
A few days after the appliance is commissioned, check the installation.
1. Check the tightness of the connections.
2. Check the water pressure.
3. Check that there are no errors on the control panel.
4. Inform the user of the frequency of maintenance work to be carried out.
5. Explain how the system and control panel work to the users.
6. Hand over all manuals to the user.
Power cord

(Fig.7)
4.3 Operating Of The Unit
14
1
2
3
4
5
M
Heating
Smart
Smart
Mode
INNOVATION FOR LIFE
6
789
①
②
“5” is the on/off button, when press , water heater start working , display screen will be lighted
up. Then press again, electricity will be cut off, and display screen will be shut down .
③
“7” and “8” are temperature adjustment buttons. Temperature increases when pressing “7”
button, and decreases when press “8” button. During the adjustment , display screen " 4" will
change accordingly. When temperature setting meets customers' requirements, stop
adjusting and display screen "4" will flash for around 3 seconds, which means temperature
has been set successfully. After flashing ,display screen "4" value will return to current inner
water heater temperature.
“1” button is for frequency switch. When press firstly, display screen “6” will show the three�
frequency option( index number “1” means 1200W, index number “2” means 2000W , index
number “5” means high temperature sterilization mode).
④
"6" is for frequency display. If number " 1" comes out , it means 1200W(only one tank is
heating ) ; If number "2" comes out , it means 2000W (the two inner tank has been being
heated up ) ; If number "3" comes out , it means energy saving mode, the temperature is set
to 55℃and cannot be adjusted ; If number "4" comes out , it means smart control energy
saving mode, the water temperature is automatically changed. The appliance works to
reduce the electricity energy of the user consumption, which allows heat loss to be minimized
and energy savings to be maximized; If number "5" comes out , it means high temperature
sterilization mode ,The fixed setting temperature is 80 degrees, and heating starts when the
temperature is lower than this temperature. The heating temperature will keep 80 degrees,
for 5 minutes , then exit the bacteriostasis and return to the default mode.
⑤
From “3” , customer could tell heating status.The light “2” will long bright , when energy
saving mode is started.The light “2” will blink , when smart control energy saving mode is
started , According the temperature set, the light “3" will be turned on which means water
heater is being heated. When inner water heater temperature reaches the set value, light “3"
will turns off , which means water heater enter into warm-keeping status.
⑥
⑦
"4" could show the current inner water temperature as well as set temperature value. If no
person operates on water heater , the value in display screen " 4" means current temperature
value. By pressing button “7” or “8” , "4" values will vary accordingly . When finish temperature
setting , "4" values will return back to actual current inner water heater temperature.
When press “9” button, the temperature value will be set to 55℃straightly, enter energy
saving mode. When press “9” button for 3 second , the water temperature is automatically
changed, enter smart control energy saving mode.

5. MAINTENANCE
15
4.4 Error code for serviceman’s use
E2: Dry Ashing---Top up with water and re-heat.
E3: Overheating---Check the heating system or replace it.
E4: Sensor Fault---Check the sensor or replace it.
5.1 General
5.2 Maintenance operation intervals
5.3 Operate the safety valve or unit
Caution
Do not neglect to service the domestic hot water tank. Contact a qualified professional or take out a
maintenance contract for the obligatory annual servicing of the electrical water heater. Failure to service
the appliance voids the warranty.
The control and maintenance interventions for the appliance must be performed by a certified professional
in accordance with prevailing statutory texts and codes of practice.
Maintenance operations are important for the following reasons:
• To guarantee optimum performance;
• To extend the life of the equipment;
• To provide an installation which offers the customer optimum comfort over time.
Power off the electrical water heater before any interventions on the appliance.
Remove the electrical water heater casing only to perform maintenance and repair work.
Put the casing back in place after maintenance and repair work.
To take the proper precautions against possible pressure surges which would damage the domestic hot
water tank, ensure the safety valve or unit functions correctly. Failure to follow this maintenance
requirement may lead to damage of the domestic hot water tank and void its warranty.
1. Operate the safety valve or unit at least once a month.
2. Replace the safety valve or unit if necessary.
General maintenance
Operation Periodicity Installer User
Operate the safety valve or unit Once a month X
Operations Periodicity Installer User
Clean the casing using a damp soft cloth once a year X
Descaling the domestic hot water tank after the first year of use
and then every two years X
Checking the magnesium anode after the first year of use
and then every two years X
Maintenance of domestic hot water tank

16
6. TROUBLESHOOTING

17
7. Produce information with EU regulation
The electrical storage water heater CESL C50 of the company BDR THERMEA France SAS was tested
with a declared load profile of the size “M”
The product fulfills and corresponds to the requirements of the commission regulation standards (No
814/2013) for electrical storage water heater and achieved a water heating energy efficiency of ηwh=41%
that correspond to the water heating efficiency class “B”, The sound power level is 15 dB.
In accordance with AnnexⅡEnercy Efficiency Classes article 1 of the commission regulation (No
812/2013)
The evaluation of the result of this report with respect of conformity with the related commission regulation
(No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.
Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40℃（V40）
Description Parameter Value Unit
Storage volume V47 L
Water heating energy efficiency * η
wh
40.7 %
Annual Electricity Consumption * AEC 1260 kWh
Water heating energy efficiency class *
Calculated volume that delivered hot water of at least 40°C according
to EN 50440 V40 76 L
The thermostat temperature setting of the water heater, as placed on the
market by the supplier
Specific precautions that shall be taken when the water heater is
assembled, installed or maintained and disposed of at end of life.
B
* The information on the water heating energy efficiency and annual
electricity relate to enabled smart control settings only.
75°C
See section 3-5

18
The electrical storage water heater CESL C80 of the company BDR THERMEA France SAS was
tested with a declared load profile of the size “M”
The product fulfills and corresponds to the requirements of the commission regulation standards (No
814/2013) for electrical storage water heater and achieved a water heating energy efficiency of ηwh=39%
that correspond to the water heating efficiency class “B” , The sound power level is 15 dB.
In accordance with AnnexⅡEnercy Efficiency Classes article 1 of the commission regulation (No
812/2013)
The evaluation of the result of this report with respect of conformity with the related commission regulation
(No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.
Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40℃（V40）
Description Parameter Value Unit
Storage volume VL
Water heating energy efficiency * η
wh
%
Annual Electricity Consumption * AEC
74
39.1
1314 kWh
Water heating energy efficiency class *
Calculated volume that delivered hot water of at least 40°C according
to EN 50440 V40 108 L
The thermostat temperature setting of the water heater, as placed on the
market by the supplier
Specific precautions that shall be taken when the water heater is
assembled, installed or maintained and disposed of at end of life.
B
* The information on the water heating energy efficiency and annual
electricity relate to enabled smart control settings only.
75°C
See section 3-5

19
The electrical storage water heater CESL C100 of the company BDR THERMEA France SAS was
tested with a declared load profile of the size “M”
that correspond to the water heating efficiency class “B” , The sound power level is 15 dB.
The product fulfills and corresponds to the requirements of the commission regulation standards (No
814/2013) for electrical storage water heater and achieved a water heating energy efficiency of
In accordance with AnnexⅡEnercy Efficiency Classes article 1 of the commission regulation (No
812/2013)
The evaluation of the result of this report with respect of conformity with the related commission regulation
(No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.
Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40℃（V40）
ηwh=45%
Description Parameter Value Unit
Storage volume V93 L
Water heating energy efficiency * η
wh
45.1 %
Annual Electricity Consumption * AEC 1138 kWh
Water heating energy efficiency class *
Calculated volume that delivered hot water of at least 40°C according
to EN 50440 V40 131 L
The thermostat temperature setting of the water heater, as placed on the
market by the supplier
Specific precautions that shall be taken when the water heater is
assembled, installed or maintained and disposed of at end of life.
B
* The information on the water heating energy efficiency and annual
electricity relate to enabled smart control settings only.
75°C
See section 3-5