STIEBEL ELTRON CNS 50 TREND Instruction Manual

OPERATION AND INSTALLATION
Wall mounted convector
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TABLE OF CONTENTS | SPECIAL INFORMATION
SPECIAL INFORMATION
- Keep children under the age of3 away from
the appliance if constant supervision cannot
be guaranteed.
- Children from the age of 3 to 7 may switch
the appliance on and off, provided they are
supervised or have been instructed in the safe
operation of the appliance and understand
any risks that may result. This is subject to the
appliance having been installed as described.
Children from the age of 3 to 7 must not regu-
late the appliance.
- The appliance may be used by children over
8years of age and persons with reduced
physical, sensory or mental capabilities or a
lack of experience and expertise, 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.
- Parts of the appliance can get very hot and
may cause burns. Particular caution is ad-
vised when children or vulnerable persons are
present.
- To prevent the appliance from overheating,
never cover it with anything.
- Never install the appliance directly below a
wall socket.
- The connection to the power supply must
be in the form of a permanent connection.
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.
SPECIAL INFORMATION
OPERATION
1. General information �����������������������������������������3
1.1 Safety instructions����������������������������������������������� 3
1.2 Other symbols in this documentation ����������������������� 3
1.3 Information on the appliance ��������������������������������� 3
1.4 Units of measurement ������������������������������������������ 3
2. Safety����������������������������������������������������������3
2.1 Intended use������������������������������������������������������ 3
2.2 General safety instructions ������������������������������������ 4
2.3 Test symbols ������������������������������������������������������ 4
3. Appliance description ���������������������������������������4
4. Commissioning �����������������������������������������������4
5. Operation �����������������������������������������������������5
5.1 Programming unit ����������������������������������������������� 5
5.2 Standby mode ���������������������������������������������������� 5
5.3 Operating lock���������������������������������������������������� 5
5.4 Room control mode ��������������������������������������������� 6
6. Settings �������������������������������������������������������6
6.1 Standard display ������������������������������������������������� 6
6.2 Standard menu��������������������������������������������������� 7
6.3 Configuration menu ��������������������������������������������� 7
7. Cleaning, care and maintenance ���������������������������9
8. Troubleshooting ����������������������������������������������9
INSTALLATION
9. Safety�������������������������������������������������������� 10
9.1 General safety instructions ����������������������������������� 10
9.2 Instructions, standards and regulations ������������������� 10
10. Appliance description ������������������������������������� 10
10.1 Standard delivery����������������������������������������������� 10
10.2 Additional accessories ����������������������������������������� 10
11. Installation�������������������������������������������������� 10
11.1 Minimum clearances������������������������������������������� 10
11.2 Installing the wall mounting bracket ����������������������� 10
11.3 Appliance installation������������������������������������������ 11
11.4 Removing the appliance��������������������������������������� 11
11.5 Electrical connection������������������������������������������� 11
12. Commissioning ��������������������������������������������� 11
13. Appliance handover���������������������������������������� 11
14. Shutting down the system �������������������������������� 11
15. Troubleshooting �������������������������������������������� 11
16. Specification ������������������������������������������������ 12
16.1 Dimensions and connections ��������������������������������� 12
16.2 Energy consumption data������������������������������������� 12
16.3 Data table �������������������������������������������������������� 13
GUARANTEE
ENVIRONMENT AND RECYCLING

OPERATION
General information
ENGLISH
www.stiebel-eltron.com CNS Trend NC | 3
- The power cable must only be replaced (for
example if damaged) by a qualified contrac-
tor authorised by the manufacturer, using an
original spare part.
- Secure the appliance as described in chapter
"Installation/ Installation".
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 these 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.
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 Information on the appliance
Symbol Meaning
Never cover the appliance
1.4 Units of measurement
Note
All measurements are given in mm unless stated oth-
erwise.
2. Safety
2.1 Intended use
This appliance is designed to heat living areas.
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.

OPERATION
Appliance description
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2.2 General safety instructions
!
WARNING Injury
-Keep children under the age of3 away from the
appliance if constant supervision cannot be guar-
anteed.
-Children from the age of 3 to 7 may switch the ap-
pliance on and off, provided they are supervised
or have been instructed in the safe operation of
the appliance and understand any risks that may
result. This is subject to the appliance having been
installed as described. Children from the age of 3 to
7 must not regulate the appliance.
-The appliance may be used by children over 8years
of age and persons with reduced physical, sensory
or mental capabilities or a lack of experience and
expertise, 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. Clean-
ing and user maintenance must not be carried out
by children without supervision.
!
WARNING Injury
In closed rooms, temperatures can rapidly reach high
levels. Ensure constant supervision if the appliance is
operated in a small room and the persons within that
room cannot regulate the appliance or leave the room
on their own.
WARNING Burns
Never operate this appliance...
-if the distance from adjacent objects or other flam-
mable materials would be less than the minimum
permissible distance.
-in rooms where it is at risk of fire or explosion as a
result of chemicals, dust, gases or vapours. Venti-
late the room sufficiently before heating.
-in the direct proximity of pipes or receptacles that
carry or contain flammable or explosive materials.
-if an appliance component is damaged, the appli-
ance has fallen over or there is a fault.
WARNING Burns
-Never place any flammable, combustible or insulat-
ing objects or materials on the appliance or in direct
proximity to it.
-Ensure that the air intake and discharge are never
blocked.
-Never place any objects between the appliance and
the wall.
WARNING Burns
The appliance is unsuitable for use as a floorstanding
appliance. Only ever operate the appliance when it is
mounted on the wall mounting bracket supplied (see
chapter "Installation/ Installation").
CAUTION Burns
Parts of the appliance can get very hot and may cause
burns. Particular caution is advised when children or
vulnerable persons are present.
WARNING Overheating
To prevent the appliance from overheating, never cover
it with anything.
!
Material losses
- Ensure that the power cable is not touching the ap-
pliance.
- Never stand on the appliance.
- Never operate the appliance in the open air.
2.3 Test symbols
See type plate on the appliance.
3. Appliance description
The appliance is a wall mounted electric direct heater.
The appliance is suitable for use as a standalone heater or as
an interim heater in spring/autumn and as a booster heater for
smaller rooms.
The air inside the appliance is heated by a heating element and
expelled via natural convection through the air discharge at the
top. Cool indoor air is drawn in through the air intake on the
underside of the appliance.
When the set room temperature is reached, it is maintained by
periodic heating.
4. Commissioning
Note
For a short time after initial start-up and after longer
breaks in use, a smell may develop briefly.
The appliance is ready for operation as soon as it has been fixed to
the installation wall and connected to the mains via a junction box.

OPERATION
Operation
ENGLISH
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5. Operation
The appliance can be controlled either via the programming unit
or via room control mode, in which case the adjustment options
will be restricted. Room control operation must first be activated
by means of a service tool (see chapter "Operation/ Room control
mode").
5.1 Programming unit
The programming unit is located at the top right of the appliance.
D0000097018
1 2
1 Display
2 User interface
5.1.1 User interface
Button Designation Description
"Standby" button Switch on the programming unit;
Put programming unit and heating appliance
into standby mode
"OK" button Selection;
Confirm settings
"Menu" button Call up and exit menu
"+" button Call up menu items;
Change settings
"–" button Call up menu items;
Change settings
5.1.2 Display
If no user action occurs for 20seconds, the backlighting switches
off. Press any button to switch the background lighting on again.
Symbols
Symbol Description
Time display:
Indication of the current time or a programmed start time
Timer mode:
The appliance heats in accordance with the enabled time pro-
gram.
Room control mode:
In room control mode, the appliance heats the room in accord-
ance with the settings sent from the service tool.
Comfort mode:
The appliance maintains the set comfort temperature.
Standard setting: 21.0°C. Use this setting for comfortable room
temperatures when someone is present.
Symbol Description
Setback mode:
The appliance maintains the selected setback temperature.
Standard setting: 18.0°C. Use this setting e.g.at night or when
absent for several hours.
Frost protection:
The frost protection symbol is displayed if the set room tempera-
ture is set to 7.0°C.
Use this setting to protect an unused room from frost damage.
Adaptive start:
In timer mode, the heating appliance switching times are adjust-
ed to ensure that, at the programmed start time, the respective
set room temperature is already reached.
Requirement: The "adaptive start" function is enabled (see chap-
ter "Settings/ Standard menu").
Window open detection:
To avoid unnecessary energy consumption while venting, the
appliance automatically switches to frost protection mode for one
hour if a window is opened. The "Window open detection" symbol
flashes. After venting, frost protection mode can be terminated
manually by pressing "+". The appliance then heats to the set
room temperature again.
Requirement: Window open detection is enabled (see chapter
"Settings/ Standard menu").
Operating lock:
The user interface is locked.
Heating enabled:
The appliance is heating to maintain the set room temperature.
Room temperature display
Editable parameter:
The parameter shown can be changed using "+" and "–".
Days of the week:
1=Monday, 2=Tuesday … 7=Sunday
5.2 Standby mode
!
Material losses
In standby mode, the appliance will not switch on heating
under any circumstances. There will be no frost protec-
tion.
 To switch on the programming unit, press "Standby". The
standard display appears.
 To put the programming unit and the heating appliance into
standby mode, press "Standby". The display shows "----".
5.3 Operating lock
To lock or unlock the user interface, press and hold "+" and "–"
simultaneously for 5seconds.

OPERATION
Settings
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5.4 Room control mode
Room control mode can be configured and activated only via a
service tool – forexample, by the caretaker in a student hall of
residence. Only limited adjustment options will be available to
the appliance user.
The set room temperatures for Comfort, Setback and Frost protec-
tion modes are set via the service tool. In addition, for Comfort and
Setback modes, a period can be specified during which the appli-
ance operates in that mode (in Comfort mode, in Setback mode).
To prevent unnecessary energy use while the room is being ven-
tilated, "window open detection" can be activated via the service
tool (for window open detection, see chapter "Operation/ Dis-
play").
When room control mode is activated, the appliance operates in
setback mode.
D0000097052
On the display you will see the selected setback temperature and
the setback mode symbol. The "time" and "operating lock" symbols
are always displayed.
If you wish to check the current room temperature, hold down the
"Menu" button. After approx.3seconds, the actual room temper-
atureI1 is displayed.
Settings
You can reduce and then increase the set room temperature to any
point between the maximum comfort temperature and the frost
protection temperature using the "+" and "–" buttons.
Action Description Display
 Press the "+" button. The appliance switches to Comfort
mode and heats to the set comfort
temperature.
 Press the "+" button
again.
The comfort temperature is in-
creased by 1°C.
 Press the "+" button
again.
No change
 Press the "–" button. The set room temperature returns to
the comfort temperature again.
 Press the "–" button
again.
The comfort temperature is reduced
by 1°C.
Action Description Display
 Press the "–" button
again.
The appliance switches to setback
mode.
 Press the "–" button
again.
The appliance switches to frost pro-
tection mode.
 Press the "–" button
again.
No change
After a specified period has expired, the comfort temperature
is reduced automatically to the setback temperature. If a period
has been specified for setback mode, then once this period has
expired, setback temperature will be reduced to the frost protec-
tion temperature. Otherwise the appliance continues to operate
in setback mode.
6. Settings
All settings are retained in the event of an interruption to the
power supply. This appliance is equipped with a power reserve
that ensures the day of the week and the time are saved for sev-
eral hours.
Note
If the appliance had previously been in timer mode and
then the power supply was interrupted for several hours,
you will be prompted to set the day and time. Until this
setting is made, the appliance will operate in comfort
mode.
6.1 Standard display
D0000072134
The standard display is continuously displayed. If no user action
is performed for longer than 20seconds while in the menu, the
device automatically switches to the standard display.
The default display shows the current set room temperature as
well as the "Editable parameter" symbol. You can use "+" and "–"
to change the set room temperature.
If the set room temperature corresponds to one of the values
set for the comfort or setback temperature, the symbol for the
corresponding operating mode (comfort mode, setback mode)
appears in the menu bar.
The set room temperature can also be changed manually when
in timer mode. The changed set room temperature is maintained
until the next programmed switching point is reached.

OPERATION
Settings
ENGLISH
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6.2 Standard menu
To access the standard menu, briefly press "Menu". You can now
call up the following menu items:
Display Description
Select day of the week and time
Days of the week: 1=Monday to 7=Sunday
Select comfort temperature
The comfort temperature must be set at least 0.5°C higher
than the setback temperature.
Select setback temperature
The setback temperature must be set to at least 0.5°C lower
than the comfort temperature.
Switch "Window open detection" function on and off
Select or deactivate (off) the time program (Pro1, Pro2, Pro3)
Switch "Adaptive start" function on and off
To change the setting of a menu item, call the relevant menu item
up using "+" and "–". Press "OK".
As soon as the "Editable parameter" symbol appears, you can
change the setting of the menu item with "+" and "–". Press "OK"
to save the setting.
To exit the standard menu, press "Menu". The standard display
appears.
6.3 Configuration menu
Display Description
I1-I2 Actual values
Pro1-Pro3 Time programs
P1-P5 Parameter
In the configuration menu, you can call up actual values, program
time programs for timer mode and set parameters.
To access the configuration menu, press and hold "Menu". After
approx.3seconds, actual valueI1 is displayed.
Use "+" and "–" to switch between the individual actual values,
time programs and parameters.
To exit the configuration menu, press "Menu". The standard dis-
play appears.
6.3.1 Actual values
The following actual values can be called up:
Display Description Unit
I1 Actual room temperature [°C] | [°F]
I2 Relative heating time
(The counter can be reset via parameter P5.)
[h]
Note
The counter for relative heating time(I2) counts in com-
plete hours how long the appliance heats for. When the
appliance is switched off, any heating phase of less than
60minutes is not recorded.
6.3.2 Time programs
There are three time programs available when using the appliance
in timer mode. Time programs Pro1 and Pro2 are pre-configured
at the factory. Time program Pro3 can be set according to your
individual requirements.
Display Description
Pro1 Time program "Daily"
- Repeated: Monday to Sunday
Pro2 Time program "Weekdays"
- Repeated: Monday to Friday
Pro3 Time program "User defined"
- up to 14comfort phases, freely configurable
Note
To use timer mode, select the required time program
in the standard menu (see chapter "Settings/ Standard
menu").
Note
Ensure the day of the week and the time are set correctly
when setting the time programs.
Note
The following applies to all time programs (Pro1, Pro2,
Pro3):
If the end time is later than 23:59h, the end time will
automatically be moved to the next day of the week. The
comfort phase is maintained past midnight and will end
on the next day at the set end time.
Time programs Pro1 and Pro2
You can specify the comfort mode start and end times with time
programsPro1 and Pro2. During this time period, the appliance
heats to the set comfort temperature. Outside this specified time
period, the appliance operates in setback mode. This results
in a comfort phase and a setback phase, which are repeated
daily(Pro1) or on every working day (Pro2).
Theses phases are factory-set as follows:
- 08:00h - 22:00h: Comfort mode
- 22:00h - 08:00h: Setback mode

OPERATION
Settings
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Note
When time programPro2 is enabled, the appliance oper-
ates at weekends exclusively in setback mode.
To adapt time programsPro1 and Pro2 according to your needs,
proceed as follows:
 In the configuration menu, use "+" and "–" to call up the re-
quired time program.
 Press "OK".
The start time for comfort mode is displayed.
 Use "+" and "–" to set the required start time.
 Press "OK".
The end time for comfort mode is displayed.
 Use "+" and "–" to set the required end time.
 Press "OK" to save.
Time program Pro3
You can use time programPro3 to specify up to 14 separate com-
fort phases which are repeated weekly.
To configure a comfort phase in time programPro3, proceed as
follows:
 In the configuration menu, use "+" and "–" to call up time
programPro3.
 Press "OK".
The display shows "3---".
 Press "OK".
A day of the week or a group of days is displayed.
 Use "+" and "–" to select the required day or group of days.
 Press "OK".
The start time for comfort mode is displayed.
 Use "+" and "–" to set the required start time.
 Press "OK".
The end time for comfort mode is displayed.
 Use "+" and "–" to set the required end time.
 Press "OK".
Comfort phase "3-01" has been configured.
 To configure a further comfort phase, use "+" and "–" in time
programPro3 to select display"3---". Proceed as describe
above.
Note
To reset the selected comfort phases, activate parame-
terP4.
 Please note that activating parameterP4 resets all
time programs (Pro1, Pro2, Pro3) to the factory set-
ting.
6.3.3 Parameter
You can call up the following parameters:
Display Description Options
P1 Room temperature offset ±3°C | ±5°F
P2 Time format 12h | 24h
P3 Temperature display unit °C| °F
P4 Reset time programs (timer mode). on | off
P5 Reset relative heating time on | off
To change the value of a parameter, use "+" and "–" to call up the
relevant parameter. Press "OK".
As soon as the "Editable parameter" symbol appears, you can
change the parameter value with "+" and "–". Press "OK" to save
the selected value.
P1: Room temperature offset
Uneven temperature distribution in the room can result in a dif-
ferential between displayed actual temperatureI1 and the room
temperature you measure. To compensate for this differential, a
room temperature offset of ±3°C can be set via parameterP1.
Example: The appliance indicates I1=21.0°C. You have measured
a room temperature of 20.0°C. There is a differential of 1.0°C.
 To compensate for the differential, select an offset of
P1=-1.0.
P2: Time format
ParameterP2 allows you to specify whether the time is displayed
in the 12hour or 24hour format.
P3: Temperature display unit
ParameterP3 is used to specify whether the room temperature is
displayed in degrees Centigrade [°C] or Fahrenheit [°F].
P4: Reset time programs
Activating parameterP4 resets all time programs to the factory
setting.
P5: Reset relative heating time
Activating parameterP5 resets the counter for relative heating
time (I2).

OPERATION
Cleaning, care and maintenance
ENGLISH
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7. Cleaning, care and maintenance
The appliance contains no user serviceable parts.
Material losses
- Never spray cleaning spray into the air slot.
- Ensure that no moisture can enter the appliance.
- If a pale brownish discolouration appears on the appliance
casing, wipe it off with a damp cloth.
- Clean the appliance when cold with ordinary cleaning prod-
ucts. Avoid abrasive or corrosive cleaning products.
Note
We recommend having the control components checked
as part of regular maintenance.
 Have a qualified contractor check the safety and
control components no more than 10years after
commissioning.
8. Troubleshooting
Problem Cause Remedy
Room does not get
warm enough. Ap-
pliance does not get
hot.
Temperature set too low
on the appliance.
Check the selected room
temperature. Adjust if nec-
essary.
No power supply. Check position of the ON/OFF
switch, RCD and fuse/MCB in
the distribution board.
Room does not get
warm enough al-
though the appliance
is hot.
Overheating. High limit
safety cut-out limits
heating output.
Eliminate the cause (dirt or
obstructions at the air intake
or discharge). Observe mini-
mum clearances.
Heat demand of the room
is higher than the appli-
ance output.
Remedy heat losses (Close
windows and doors. Avoid
constant venting.)
The room gets too
hot.
Appliance temperature is
set too high.
Check the selected room
temperature. Adjust if nec-
essary.
Detected room tempera-
ture does not match actu-
al room temperature.
Avoid obstructions to air
changes between appliance
and indoor air.
Window open de-
tection does not
respond.
Appliance does not detect
a pronounced tempera-
ture drop when venting.
(Window open detection
requires a previously sta-
ble room temperature.)
Wait a while after making
settings on the appliance,
until the room temperature
has fully stabilised.
Avoid obstructions to air
changes between appliance
and indoor air.
Manually switch the appli-
ance to standby mode for the
duration of venting.
Window open detection
is not enabled.
Switch on window open
detection in the standard
menu.
Problem Cause Remedy
"Adaptive start" func-
tion does not work as
required.
This function is only ef-
fective in timer mode.
Use the timer mode for opti-
mised heating convenience.
Severely fluctuating room
temperature or the appli-
ance learning procedure
has not been completed.
Wait a few days for the be-
haviour to stabilise.
"Adaptive start" function
is not enabled.
Switch on the "Adaptive
start" function in the stand-
ard menu.
"Err" or "E..." is dis-
played.
Internal fault detected. Notify the qualified con-
tractor.
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).

INSTALLATION
Safety
10 | CNS Trend NC www.stiebel-eltron.com
INSTALLATION
9. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
9.1 General safety instructions
We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
CAUTION Burns
-Only mount the appliance on a vertical wall that is
temperature-resistant to at least 85°C.
-Maintain the minimum clearances to adjacent ob-
jects.
!
Material losses
- Never install the appliance directly below a wall
socket.
- Ensure that the power cable is not in contact with
any appliance components.
9.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
10. Appliance description
10.1 Standard delivery
The following are delivered with the appliance:
- Wall mounting bracket (hooked into the appliance)
10.2 Additional accessories
- Service tool CNS UK
11. Installation
11.1 Minimum clearances
≥150≥100
≥100 ≥100 ≥500
≥20
D0000068096
11.2 Installing the wall mounting bracket
The appliance is intended for wall mounting using the wall mount-
ing bracket supplied. The appliance may only be installed hori-
zontally.
Note
- The wall mounting bracket can be used as a tem-
plate for wall mounting. This ensures sufficient
clearance from the floor.
- Use a spirit level if the floor is uneven or sloping.
aaa
D0000072159
1
3
2
4
≥224 ≥224
D0000097021

INSTALLATION
Commissioning
ENGLISH
www.stiebel-eltron.com CNS Trend NC | 11
 Unhook the wall mounting bracket from the appliance.
 Place the centred wall mounting bracket horizontally on the
floor. Mark holes1 and 2.
 Lift up the wall mounting bracket so that its lower holes
match up with the markings you have just made on the in-
stallation wall.
 Mark holes3 and 4 on the installation wall.
 Drill the holes at the 4markings.
 Secure the wall mounting bracket with suitable fixing ma-
terials (screws, rawl plugs). With the vertical slots, you can
compensate for an offset fixing hole.
11.3 Appliance installation
D0000097023
1
1 Wall mounting bracket
 Hook the appliance onto the bottom tabs of the wall mount-
ing bracket by the slots in the back of the appliance.
 Place the appliance in an upright position.
 Secure the appliance by pushing it towards the wall until it
audibly snaps into place in the two upper springs on the wall
mounting bracket.
D0000072158
12
1 Appliance
2 Locking screw
 Secure the appliance against unintentional release using
the supplied locking screw on the left-hand side of the wall
mounting bracket.
11.4 Removing the appliance
 Undo and remove the locking screw from the wall mounting
bracket.
 To release the appliance, push down the springs at the top of
the wall mounting bracket.
 Tilt the appliance away from the wall and lift it off the bottom
tabs on the wall mounting bracket.
11.5 Electrical connection
WARNING Electrocution
-Carry out all electrical connection and installation
work in accordance with relevant regulations.
-The connection to the power supply must be in the
form of a permanent connection. Ensure the appli-
ance can be separated from the power supply by
an isolator that disconnects all poles with at least
3mm contact separation.
-Do not install the appliance with a fixed power
cable.
Note
- Observe the type plate. The specified voltage must
match the mains power supply.
- Ensure the on-site supply cable has an adequate
cross-section.
The appliance is delivered with a power cable without a plug.
 Connect the power cable to an appliance junction box with
earth conductor.
12. Commissioning
The appliance is ready for operation as soon as it has been fixed to
the installation wall and connected to the mains via a junction box.
 Remove the protective film from the programming unit.
13. Appliance handover
Explain the functions of the appliance to the user. Draw special
attention to the safety instructions. Hand over the operating and
installation instructions to the user.
14. Shutting down the system
 Isolate all poles of the appliance from the power supply.
15. Troubleshooting
The power cable must only be replaced (for example if damaged)
by a qualified contractor authorised by the manufacturer, using
an original spare part.

INSTALLATION
Specication
12 | CNS Trend NC www.stiebel-eltron.com
16. Specification
16.1 Dimensions and connections
a20
450
100
256
i13
1:1
b01
D0000097025
CNS 50 Trend NC CNS 75 Trend NC CNS 100 Trend NC CNS 150 Trend NC CNS 200 Trend NC
a20 Appliance Width mm 348 426 426 582 738
b01 Entry electrical
cables
i13 Wall mounting
bracket
Horizontal hole
spacing
mm 101 179 179 335 491
16.2 Energy consumption data
The product data complies with EU regulations relating to the
directive on the ecodesign of energy related products (ErP).
Product information on electric individual room heaters to regulation (EU) 2015/1188
CNS 50
Trend NC
CNS 75
Trend NC
CNS 100
Trend NC
CNS 150
Trend NC
CNS 200
Trend NC
202001 202002 202003 202004 202005
Manufacturer STIEBEL
ELTRON
STIEBEL
ELTRON
STIEBEL
ELTRON
STIEBEL
ELTRON
STIEBEL
ELTRON
Heating output
Rated heating output Pnom kW 0.5 0.8 1.0 1.5 2.0
Minimum heating output (standard value) Pmin kW 0.0 0.0 0.0 0.0 0.0
Maximum continuous heating output Pmax,c kW 0.5 0.8 1.0 1.5 2.0
Auxiliary power consumption
At rated heating output elmax kW 0.000 0.000 0.000 0.000 0.000
At minimum heating output elmin kW 0.000 0.000 0.000 0.000 0.000
In standby elSB kW 0.000 0.000 0.000 0.000 0.000
Type of heating output/room temperature control
Single stage heating output, no room temperature control - - - - -
Two or more manually selectable stages, no room temperature control - - - - -
Room temperature control with mechanical thermostat - - - - -
With electronic room temperature control - - - - -
Electronic room temperature control and time of day control - - - - -
Electronic room temperature control and day of week control x x x x x
Other control options
Room temperature control with motion detection - - - - -
Room temperature control with window open detection xxxxx
With remote control option - - - - -
With adaptive control of heating start x x x x x
With operating time limitation - - - - -
With black bulb sensor - - - - -

INSTALLATION
Specication
ENGLISH
www.stiebel-eltron.com CNS Trend NC | 13
16.3 Data table
CNS 50 Trend NC CNS 75 Trend NC CNS 100 Trend NC CNS 150 Trend NC CNS 200 Trend NC
202001 202002 202003 202004 202005
Electrical data
Connected load W500 750 1000 1500 2000
Power supply 1/N/PE ~ 240V 1/N/PE ~ 240V 1/N/PE ~ 240V 1/N/PE ~ 240V 1/N/PE ~ 240V
Voltage range V230-240 230-240 230-240 230-240 230-240
Rated current A 2.1 3.1 4.2 6.3 8.3
Frequency Hz 50/- 50/- 50/- 50/- 50/-
Energy data
Room heating seasonal efficiency ηs %39 39 39 39 39
Dimensions
Height mm 450 450 450 450 450
Width mm 348 426 426 582 738
Depth mm 100 100 100 100 100
Weights
Weight kg 4.0 4.6 4.6 6.0 7.7
Versions
Frost protection setting °C 7 7 7 7 7
Version Wall mounted unit Wall mounted unit Wall mounted unit Wall mounted unit Wall mounted unit
IP rating IP24 IP24 IP24 IP24 IP24
Protection class I I I I I
Colour alpine white alpine white alpine white alpine white alpine white
Values
Setting range °C 5-30 5-30 5-30 5-30 5-30

14 | CNS Trend NC www.stiebel-eltron.com
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.
GUARANTEE
ENVIRONMENT AND RECYCLING

ENGLISH
www.stiebel-eltron.com CNS Trend NC | 15
NOTES

Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße 33 | 37603 Holzminden
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.de
Verkauf Tel. [phone] | Fax [phone] | [e-mail]
Kundendienst Tel. [phone] | Fax [phone] | [e-mail]
Ersatzteilverkauf Tel. [phone] | Fax [phone] | [e-mail]
Irrtum und technische Änderungen vorbehalten! | Subject to errors and technical changes! | Sous réserve
d‘erreurs et de modifications techniques! | Onder voorbehoud van vergissingen en technische wijzigingen!|
Salvo error o modificación técnica! | Excepto erro ou alteração técnica | Zastrzeżone zmiany techniczne i
ewentualne błędy | Omyly a technické změny jsou vyhrazeny! | A muszaki változtatások és tévedések jogát
fenntartjuk! | Отсутствие ошибок не гарантируется. Возможны технические изменения. | Chyby a
technické zmeny sú vyhradené! Stand 9535
Australia
STIEBEL ELTRON Australia Pty. Ltd.
294 Salmon Street | Port Melbourne VIC 3207
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.com.au
Austria
STIEBEL ELTRON Ges.m.b.H.
Gewerbegebiet Neubau-Nord
Margaritenstraße 4 A | 4063 Hörsching
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.at
Belgium
STIEBEL ELTRON bvba/sprl
't Hofveld 6 - D1 | 1702 Groot-Bijgaarden
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.be
China
STIEBEL ELTRON (Tianjin) Electric Appliance
Co., Ltd.
Plant C3, XEDA International Industry City
Xiqing Economic Development Area
300085 Tianjin
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebeleltron.cn
Czech Republic
STIEBEL ELTRON spol. s r.o.
Dopraváků 749/3 | 184 00 Praha 8
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.cz
Finland
STIEBEL ELTRON OY
Kapinakuja 1 | 04600 Mäntsälä
Tel. [phone]
[e-mail]
www.stiebel-eltron.fi
France
STIEBEL ELTRON SAS
7-9, rue des Selliers
B.P 85107 | 57073 Metz-Cédex 3
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.fr
Hungary
STIEBEL ELTRON Kft.
Gyár u. 2 | 2040 Budaörs
Tel. [phone] | Fax [phone]
[e-mail]
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]
[e-mail]
www.nihonstiebel.co.jp
Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36 | 5222 BH 's-Hertogenbosch
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.nl
Poland
STIEBEL ELTRON Polska Sp. z O.O.
ul. Działkowa 2 | 02-234 Warszawa
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.pl
Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street 4,
building 2 | 129343 Moscow
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.ru
Slovakia
STIEBEL ELTRON Slovakia, s.r.o.
Hlavná 1 | 058 01 Poprad
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.sk
Switzerland
STIEBEL ELTRON AG
Industrie West
Gass 8 | 5242 Lupfig
Tel. [phone] | Fax [phone]
[e-mail]
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]
[e-mail]
www.stiebel-eltron.co.uk
United States of America
STIEBEL ELTRON, Inc.
17 West Street | 01088 West Hatfield MA
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron-usa.com
A 348396-42604-9566 B 348772-42604-9566
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