nilan Comfort Series User manual

USER MANUAL
Comfort
CTS602 LIGHT BY NILAN
Version 4.00 - 01.05.2020
B24_Comfort-252-302-Top_GB

2
TABLE OF CONTENTS
General information
Safety ............................................................................................................................................................................................................ 3
Power supply ......................................................................................................................................................................................... 3
Introduction .................................................................................................................................................................................................. 3
Documentation ..................................................................................................................................................................................... 3
Data plate ............................................................................................................................................................................................... 4
Quick guide
Functions in the user panel ........................................................................................................................................................................ 5
Main screen elements .......................................................................................................................................................................... 5
Main screen settings options ............................................................................................................................................................. 5
Warnings and alarms ............................................................................................................................................................................ 6
Settings menu overview ..................................................................................................................................................................... 6
Service and maintenance
General information ................................................................................................................................................................................... 7
Regular maintenance ................................................................................................................................................................................. 7
Operation of the ventilation unit ....................................................................................................................................................... 7
Illustration of filter change ................................................................................................................................................................. 8
Annual maintenance ................................................................................................................................................................................... 9
General cleaning ................................................................................................................................................................................... 9
Water trap .............................................................................................................................................................................................. 9
Heat exchanger ..................................................................................................................................................................................... 9
User settings
Ventilations settings ................................................................................................................................................................................10
Turn off the ventilation unit .............................................................................................................................................................10
Alarm ....................................................................................................................................................................................................10
Show data ............................................................................................................................................................................................11
Date/Time ............................................................................................................................................................................................11
Week program .....................................................................................................................................................................................12
After heating element .......................................................................................................................................................................12
Air humidity .........................................................................................................................................................................................13
CO2 Control ..........................................................................................................................................................................................14
Air exchange ........................................................................................................................................................................................14
Air filter ................................................................................................................................................................................................15
Temperature control .........................................................................................................................................................................16
Alarm list
Comfort .......................................................................................................................................................................................................17
Alarm list ..............................................................................................................................................................................................17
Product data
Declaration of conformity .......................................................................................................................................................................19
Ecodesign data Comfort 252 Top ....................................................................................................................................................20
Ecodesign data Comfort 302 Top ....................................................................................................................................................21
Disposal
The environment - part of the solution .................................................................................................................................................22
Ventilation unit ...................................................................................................................................................................................22

3
General information
Safety
Power supply
Introduction
Documentation
The following documents will be supplied with the unit:
• Quick guide
• Wiring diagram
In the Quick guide you will find important information regarding installation and start-up of the unit. If you require further information
regarding, for instance, installation of accessories or additional settings in the software, or if you need an extended user manual, the
following documents can be downloaded from the Nilan website:
• Installation instructions
• Software instructions
• User Manual
• Wiring diagram
The instructions can be downloaded from https://www.nilan.dk/en-gb/frontpage/download.
If you have questions regarding installation and operation of the unit after having read the instructions, please contact your nearest
Nilan dealer. A list of Nilan dealers is available on www.nilan.dk/forhandlere.
From factory, the unit has been tested and is ready for operation.
CAUTION
Always disconnect the power supply to the unit if an error occurs that cannot be rectified via the control panel.
CAUTION
If an error occurs on electrically conductive parts of the unit, alway contact an authorised electrician to rectify the error.
CAUTION
Always disconnect the power to supply to the unit before opening the unit doors, for instance for installation, inspection,
cleaning and filter change.
ATTENTION
The unit must be started up immediately after installation and connection to the duct system.
When the ventilation unit is not in operation, humidity from the rooms will enter the duct system and create condensate
water that can run out of the valves and cause damage to floors and furniture. Condensation may also form in the ven-
tilation unit, which can damage its electronics and fans.

4
Data plate
If your ventilation unit is a right-facing model, you will find Nilan's data plate at the top / front to the right.
On a left-facing model the plate is placed to the left.
ATTENTION
When contacting Nilan with questions about the product, it is important to have the unit name and serial no. (SN) ready.
From this information, the service department can find all information about the unit in question and thus help with
information and answer questions about what the unit
consists of/contains, and what software is used.
The type of the ventilation unit can also be found in the user panel menu under “Show data”.

5
Quick guide
Functions in the user panel
Main screen elements
The main screen of the HMI user panel contains the settings options and the information that an operator mostly uses.
Main screen settings options
The settings options that are necessary in daily life can all be set on the main screen of the panel.
1. Shows the current room temperature in the house,
measured via the extract air
2. Shows the current air humidity in the extract air
3. Shows the current CO2 level in the extract air
4. Shows the current fan speed level
5. Shows if user programe or week programe is active.
If unit is stopped it shows an ikon for this.
At warnings or alarms the alarm icon will be displayed.
6. Access to the settings menu, where there are several
options.
Icon User programe active Icon Ventilation unit has stopped
Icon Week programe active Icon Active alarm or warning
If you press current fan speed level, the set fan speed level will
be displayed.
You can change the fan speed level by using the up-and-down
arrows followed by the confirm icon (bottom right) or the cancel
icon (bottom left).
There may be a difference between set fan speed level and the
actual fan speed level as the control system will override the
set level, for instance, at high/low air humidity or during cooker
hood operation.
If you press current room temperature, the set room
temperature will be displayed.
You can change the room temperature by using the up-and-
down arrows followed by the confirm icon (bottom right) or the
cancel icon (bottom left).

6
Warnings and alarms
Settings menu overview
The settings menu is constructed to make it easy to navigate through.
If the ventilation unit is faulty or an error
occurs, there will be either a warning or
an alarm. The icon will appear in the top
right hand corner in the menu bar.
If you press the symbol, a brief descrip-
tion of the warning or the alarm will be
displayed.
You will find more detailed descriptions in
the "Alarm List" section of this document.
When the problem has been solved, you
can reset the warning or alarm by
pressing “Clear Alarm”.
A warning indicates that something requires attention, for instance that filters need changing.
The ventilation unit is in operation.
An alarm indicates a serious fault with the unit that is likely to require investigation by an expert.
The ventilation unit has stopped.
You navigate through the settings menu by pressing the arrow below or above.
If you want to access a menu, tap the text for that menu and it will open.

7
Service and maintenance
General information
A ventilation unit from Nilan can last for many years if it is properly serviced and maintained. Ventilation units are often hidden away,
and they are therefore rarely given attention in everyday life. But just as you maintain your car, your ventilation unit will need servic-
ing regularly to keep it functioning properly.
If appropriate service and maintenance are not carried out, the ventilation unit may get damaged. It can also result in increased energy
consumption and a poorer indoor climate. Less air will run through the unit even if the fans are running faster. But the ventilation unit
does not operate well with dirty filters, a clogged up heat exchanger and dusty fans.
You can set an alarm in your calendar on your phone that will notify you when your ventilation unit is due a service. Alternatively, you
can make a service appointment with your local Nilan dealer or service company.
Regular maintenance
Operation of the ventilation unit
The control panel should be positioned where you will see it regularly. This will allow you to observe the operation of the ventilation
unit and it will ensure that you notice potential alarms.
You can also ensure that the unit operates as intended. It is unnecessary to adjust the settings and the unit continuously. The control
system will automatically regulate the operation. However, initially it may be necessary to finetune, for example, room temperature.
But once that is done, you should not keep readjusting it.
Filters
The primary purpose of the filters is to protect the ventilation unit and especially the heat exchanger and the fans that could otherwise
become damaged by dust and dirt.
Dirty filters result in a poorer indoor climate and a higher energy consumption. Dirty filters must therefore be replaced. Dirty filters
can also affect the humidity control system in the ventilation unit so it no longer works as intended.
The factory setting of the control system is set to 90 days, which will suit most installations. But if you live in a city close to a heavily
congested road, you may need to replace the filters more often. Conversely, if you live in a rural setting, you may not need to replace
filters quite as often.
The standard filters in the ventilation unit are ISO Coarse > 90% (G4). If you install a pollen filter ISO ePM1 50-65% (F7), you will not
need to replace the pollen filter as often, as its filter area is larger. It may then only be necessary to replace the pollen filter every sec-
ond or third time, depending on its condition.

8
Illustration of filter change
1. Before opening the door, switch the unit off on the
control panel under OPERATION.
2. The suitcase bracket at the top opens and the door is
lifted out.
3. Remove the two filters from the unit. 4. It is advisable that you vacuum the filter chambers
for potential dirt and dust.
5. Remove the filter sheet from the filter frame. 6. Keeping the smooth side facing downwards, place the
new filter sheet in the filter frame.
7. Press the filter sheet firmly in place and carefully
push it to the sides of the filter frame.
Place the filter in the unit with the filter sheet facing
upwards.
8. Turn on the unit and press the ALARM icon to reset
the warning.

9
Annual maintenance
General cleaning
The ventilation unit should be cleaned on the inside once a year. Dust can slip through the filters and mix with dampness from the ex-
tract air.
You may want to remove dust with a vacuum cleaner before wiping the ventilation unit inside. For this, use a slightly damp cloth with
a mild soap solution. Be careful around potentially sharp edges. Be careful not to get water into the electrical control system.
The ventilation unit should also be cleaned on the outside using a slightly damp cloth and a mild soap solution.
Water trap
During cold periods when the ventilation unit operates with high efficiency heat recovery, the extract air creates condensation. It is
important that this water can drain freely from the condensate tray. If it cannot drain properly, it will eventually leak out of the unit
door and, potentially, cause water damage.
Water trap with ball
1. Pour water into the condensate tray and check that it drains away
2. If the water drains away, everything is in order
3. If the water does not drain away, you should check the water trap and the drain to locate any blockages
Water trap without ball
1. Pour water into the condensate tray
2. Close the door of the ventilation unit
3. Start the ventilation unit and let it run for 10 minutes
4. Open the door of the ventilation unit and check that the water has drained away and that it has not run back into the condensate
tray
5. If the water has drained away, everything is in order
6. If the water has not drained away, you should check the water trap and the drain to locate any blockages
Heat exchanger
The counterflow heat exchanger is a central part of the ventilation unit. It heats up the cold outdoor air with energy from the warm
extract air. To maintain a high level of heat recovery, it is important that the heat exchanger is not clogged with dirt.
Experience indicates that it should not be necessary to lift out and clean the heat exchanger every year. However, if it appears to be
dirty, you should lift it out and clean it.
The easiest way to clean the counterflow heat exchanger is in the shower. Use lukewarm water and rinse it well from both sides. Allow
it to drip off before remounting it in the ventilation unit.
WARNING
Stop the ventilation unit on the control panel and switch off the power supply for the unit before opening its front door.
ATTENTION
If you have not installed a water trap with ball, you must check the condensate drain every autumn before the weather
turns cold. (Condensation typically forms when the outdoor temperature < 10°C)

10
User settings
Ventilations settings
Turn off the ventilation unit
If it is necessary to open the doors while servicing the ventilation unit, for instance when changing filters, the unit must be turned off.
This is done under the menu Operation.
> Operation
Alarm
In the “Alarm” menu item you can see warnings and alarms. This is also where you reset them once the problem has been solved.
> Alarm
When the unit is turned off, this icon appears on the main screen.
ATTENTION
It is important that the power is turned off, if you want to work with the electrical components in the ventilation unit.
ATTENTION
It is important that the ventilation unit is not turned off for long periods, as this could cause condensation problems in
the duct system.
> Operation Settings:
Description:
Off / On
The ventilation unit must be turned off before the doors are
opened during service.
If an alarm or a warning is active, the alarm icon will be displayed in the upper righthand corner of the control panel.
> Alarm number and name Description: Press the alarm to display a list of:
• Alarm ID-number
• Type of alarm
• Critical alarm or warning
(The alarm list will tell you how to proceed).
ATTENTION
As long as the problem has not been solved, the alarm or warning will remain active. When the problem has been solved,
you will be able to reset the alarm or warning by pressing "Clear alarm".

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Show data
You can access current operational data for the ventilation unit. This will allow you to check that the unit operates satisfactorily and
to identify the cause of potential alarms.
>Show data
Date/Time
It is important to set date and time correctly. It makes it easier to localise errors indicated in an error report. When logging data, it is
important to be able to follow the history. Date and time is set in the settings menu.
> Date/Time
> Operating state Description: Shows the operating setting in which the unit is running.
> Bypass Description: Shows whether the bypass damper is open or closed.
> T2 Supply air Description: Show the supply air tempereture, if an after-heating element is
not installed.
> T3 Extract air Description: Shows the room temperature as an average of the entire house.
> T4 Discharge Description: Shows the discharge air temperature.
> T7 Supply air Description: Shows the supply air temperature provided an after-heating
element has been installed.
> T8 Outdoor air Description: Shows the outdoor temperature before reaching the pre-heat-
ing element, if installed.
> T9 Water after heating Description: Shows the temperature in the water after-heating element.
> Air humidity Description: Shows the current air humidity in the house.
> CO2 Description: Shows the current CO22 level in the house (only if installed).
> Supply air fan Description: Shows the level at which the supply air fan is operating.
> Extract air fan Description: Shows the level at which the extract air fan is operating.
> Unit information Description: Select "Unit information" for more information.
> Unit type Description: Shows the name of the unit.
> Software version Description: Shows the installed software version.
> Panel software Description: Shows installed software version on the panel.
> Year Description: Select "Year" in the panel and then select the correct year.
> Month Description: Select "Month" in the panel and then select the correct month.
> Day Description: Select "Day" in the panel and then select the correct day.
> Hour Description: Select "Hour" in the panel and then select the correct hour.
> Minute Description:: Select "Minute" in the panel and then select the correct amount
of minutes.

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Week program
You can program the ventilation unit to run in accordance with specific settings at fixed times during the week via a week program.
> Week program
After heating element
This menu item is only visible if an electric or water after heating element is installed and activated under Service settings.
If it is desired to control the supply air temperature it is necessary to install an after heating element. That allow you to control the sup-
ply air temperature independently of the outdoor temperature. The after heating element can also contribute to heating the home.
An electric or water heating element can be ordered for installation in the supply air duct.
> After heating element
On the main screen in the top right side an icon will be displayed when the week program is active
> Select program Settings:
Standard setting:
Description:
Off / 1 / 2 / 3
Off
The control allows you to set 3 programs for different situa-
tions e.g.:
• Normal operation
• Holliday operation
> Edit program Description: The selected week program is now active and can be edited.
> Monday Settings: Here weekday is selected.
>Function 1 Settings: Here you select the function you want to edit.
> Start time Settings:
Standard setting:
Description:
Hours and minutes
6:00
Set the time for the program to start.
The program will run until the next change in the week program.
> Ventilation Settings:
Standard setting:
Description:
Level 1 / Level 2 / Level 3 / Level 4 / Off
Level 3
Select the desired fan speed level here.
> Temperature Settings:
Standard setting:
Description:
5  40 °C
22 °C
Set the desired room temperature here.
The same settings are made for
all functions.
> Reset program Settings: You can reset the program by selecting the “Approve” icon.
ATTENTION
An after heating element is not standard, but can be purchased as an accessory, and can also be retrofitted if desired.
> Activate Settings:
Standard setting:
Description:
Off / On
Off
You can turn the after-heating on or off here.

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Air humidity
The primary purpose of ventilation is to extract humidity from the house so it does not damage the building, and to achieve a good in-
door climate. During long periods with sub-zero temperatures, air humidity in the house may fall to a level that is critical for the build-
ing and for the indoor climate. Wooden floors, furniture and walls can be damaged by very dry air, which also whirls up dust, resulting
in a poor indoor climate.
This is rectified by an integrated humidity control system that maintains good, relative air humidity. When the average air humidity in
the house falls below a set level (default set at 30%), ventilation may be reduced. It will typically only be for a short period of time. This
will help avoid further reduction of the air humidity in the house.
The humidity control system also has a function that allows increased ventilation, should the air humidity increase, for instance when
having a bath. The risk of mould growth in the bathroom is reduced, and the bathroom mirror will rarely steam up.
The humidity control system follows the average air humidity level measured over the previous 24 hours. In this way the system au-
tomatically adapts to summer and winter conditions.
> Air humidity
> Vent.low humidity Settings:
Standard setting:
Description:
Level 1 / Level 2 / Level 3 / Level 4 / Off
Level 1
When the current humidity drops below the low humidity level,
the ventilation unit switches to the set ventilation level.
Off means that the ventation at low humidity is de-activated.
> Low humidity level Settings:
Standard setting:
Description:
15  45%
30%
When current humidity below this value falls, the ventilation
level set above is activated.
> Vent.high humidity Settings:
Standard setting:
Description:
Level 2 / Level 3 / Level 4 / Off
Level 3
At high humidity levels, for instance when having a bath, the
unit changes to the set fan speed level.
Off means that the function Ventilation at high humidity is de-
activaded.
> Max time high humidity Settings:
Standard setting:
Description:
1  180 min. / Off
60 min.
The function “High humidity” stops when actual humidity falls
below 3% above the average air humidity.
However, this time limit will stop operation if it fails within the
set time period.
Off means that the function Max. time at high humidity is de-
activated.

14
CO2 Control
This menu is only displayed if a CO2-sensor has been installed, and the function has been chosen under Service settings.
If the number of people using a building varies considerably, controlling ventilation through the CO2 level in the extract air may be a
good solution. This function is often used in offices and schools where use varies greatly during the day and during the week.
> CO2
Air exchange
Low humidity in the dwelling can be prevented by reducing ventilation at low outdoor temperatures. This function can be used in coun-
tries with regular sub-zero temperatures and at high altitudes where the outdoor air is very dry.
> Air exchange
ATTENTION
A CO2 sensor is not a standard part of all ventilation units, but may be purchased as an accessory.
> Vent.high CO2 level Settings:
Standard setting:
Description:
Level 2 / Level 3 / Level 4 / Off
Level 3
Here you set the fan speed level at which the unit is to operate
at high CO2 level.
Off means the this function is de-activated.
> High CO2 level Settings:
Standard setting:
Description:
650  2500 ppm
800 ppm
Here you set the CO2 level at which the unit is to switch to high
fan speed level.
> Normal CO2 level Settings:
Standard setting:
Description:
400  700 ppm
600 ppm
Here you set the CO2 level at which the unit is to switch to
normal fan speed level.
> Winter low vent. Settings:
Standard setting:
Description:
Level 1 / Level 2 / Level 3 / Off
Off
Here you set the fan speed level at which the unit is to operate
at low outdoor temperatures.
Off means that this function is de-activated.
> Level winter low Settings:
Standard setting:
Description:
-20  40 °C
0 °C
Here you set the outdoor temperature at which operation is to
change to "Winter low".

15
Air filter
From factory, the filter alarm has been set to signal filter replacement every 90 days. You can set the timer to fit the level of pollution
in the area where the ventilation unit has been installed.
If someone in the household has pollen allergies, it is recommended that you install a pollen filter in the outdoor air intake.
> Air filter
ATTENTION
It is important to change the filters regularly and when needed. Dirty filters reduce the efficiency of the ventilation unit
and result in a poorer indoor climate and higher power consumption.
> Filter alarm Settings:
Standard setting:
Description:
30 / 60 / 90 / 180 / 360
90 days
The number of days between filter changes can be set as
required.

16
Temperature control
If you have not installed an after-heating element, use the settings to control the bypass damper.
It is necessary to install an after-heating element if you want to control the supply air temperature and for it to contribute towards the
heating of the dwelling. An after-heating element allows you to control the supply air temperature, regardless of the outdoor temper-
ature.
You can install an external electrical or water after-heating element in the supply air duct.
> Temp. regulation
ATTENTION
During periods when heating is not required in the dwelling, the supply air temperature may fall below the minimum
temperature.
> Min. supply air summer Settings:
Standard setting:
Description:
5  16 °C
14 °C
Here you set the supply air temperature that you want the
ventilation unit to be able to provide, as a minimum, during
summer, when the unit is in heating mode.
> Min. supply air winter Settings:
Standard setting:
Description:
14  22 °C
16 °C
Here you set the supply air temperature that you want the
ventilation unit to be able to provide, as a minimum, during
winter, when the unit is in heating mode.
NB: Only possible if an after-heating element has been
installed.
> Max. supply air summer Settings:
Standard setting:
Description:
16  25 °C
22 °C
Here you set the supply air temperature that you want the ven-
tilation unit to be able to provide, as a maximum, when heating
is required.
NB: This option is only shown if an after-heating element has
been installed and activated.
> Max. supply air winter Settings:
Standard setting:
Description:
14  22 °C
16 °C
Here you set the supply air temperature that you want the unit
to be able to provide, as a maximum, during winter.
NB: This option is only shown if an after-heating element has
been installed and activated.
> Summer change Settings:
Standard setting:
Description:
5  30 °C
12 °C
Here you set the temperature for the shift between summer
and winter operation.
• If the outdoor temperature is higher, the unit will operate in
summer mode
• If the outdoor temperature is lower, the unit will operate in
winter mode

17
Alarm list
Comfort
Alarm list
The following list applies to Comfort ventilation units with the CTS602Light control. The events are divided into the following
categories:
Warning Operation continues, but an incident has occurred that should be kept in mind.
Alarm Operation is partially or completely stopped as it is a critical fault that needs immediate attention.
ID Type Display text Description / cause Troubleshooting
1 Hardware error Error in the hardware of the control system. Note alarm and reset it.
If the alarm does not disappear contact
service.
2 Alarm timeout A warning alarm has become a critical alarm. Note alarm and reset it.
If the alarm does not disappear contact
service.
3 Fire alarm
activated
The ventilation unit is stopped due to the fire
thermostat being activated.
If there is no fire, check the connection to the
fire thermostat.
If okay, contact service.
7 Frost in
after-heating
element
Units with a T9 sensor: Water heating element
could not reach 20°C within 6 min.
Units without a T9 sensor: Frost thermostat in
water heating element triggered.
Check for adequate insulation around the
water heating element and its connections.
Reset alarm.
8 Frost thermo-
stat triggered
Only on units with a T9 sensor: Frost thermo-
stat in water heating element triggered.
Check for adequate insulation around the
water heating element and its connections.
Reset alarm.
10 Overheating of
electrical
after-heating
The electrical heating element has over-
heated. Lack of airflow due to, for instance,
blocked filters, blocked air intake or defect
supply air fan.
Make sure that air is blown into the house.
Make sure the filters are clean.
Check that the outdoor air intakes is not
blocked.
Reset alarm.
Contact service if the above does not solve the
problem.
11 Low flow over
the electrical
heating ele-
ment
Lack of airflow in supply air. See alarm code 10.
15 The room
temperature is
too low
When the room temperature is below 10°C, the
unit will stop in order to prevent further cool-
ing of the house. This may, for instance, be
during a period when the house is unoccupied
and the heating system is off.
Heat up the house and reset the alarm.

18
16 Software error Fault in the ventilation unit software Contact service.
17 Watchdog
warning
Fault in the ventilation unit software Contact service.
18 Content of
database
changed
Parts of the program setting have been lost.
This may be due to a prolonged power cut or a
lightning strike.
The unit will continue to operate with standard
settings.
Reset alarm.
Contact service if the unit does not operate to
your satisfaction/ as before, as some subpro-
grams may have been lost. (Subprogram is
only available for service).
19 Change filter The filter monitor has been set at X amount of
days for check-up/change of filter.
Clean/change filter.
Reset alarm.
21 Check date and
time
Is displayed during power cuts. Set the date and time.
Reset alarm.
22 Error supply air
temperature
The desired heating of the supply air is not
possible.
(applies only with after heating element)
Set a lower supply air temperature.
Reset alarm.
71 Error de-icing
heat exchanger
Max. de-icing time exceeded for counterflow
heat exchanger.
This may be due to the unit being exposed to
very low temperatures.
If resetting the alarm does not help, contact
service. Register the current operating tem-
peratures from the “SHOW DATA” menu in
order to ease the service process.
91 Missing
expansion PCB
Expansion PCB is missing. Contact service.
92 Backup error Error writing or reading installer settings Contact service.
96 Error in damper
test
Damper (open / closed) not fulfilled. Reset alarm.
If it does not help contact service.

19
Product data
Declaration of conformity

20
Ecodesign data Comfort 252 Top
* Specific energy consumption
** Annual heating saved.
SEC* average climate -42.3 kWh/(m2.a)
SEC cold climate -81.4 kWh/(m2.a)
SEC warm climate -17.2 kWh/(m2.a)
SEC-Class A+
Type Residential ventilation unit
Type of drive Variable speed drive
Type of heat recovery system Recuperative (counterflow heat exchanger)
Thermal efficiency of heat recovery 91%
Maximum flow rate 253 m3/h (100 Pa)
Electric power input of fan drive, including any motor control
equipment at maximum flow rate
77.6W
Sound power level (LWA) 43 dB(A)
Reference flow rate 0.049 m3/s (177.1 m3/h)
Reference pressure difference 50 Pa
SEL 0.17 W/(m3/h)
Central demand control 0.85
Maximum internal leakage 0.53%
Maximum external leakage 0.87%
Visual filter warning When a filter needs replacing, an alarm will be displayed on the
control panel. NB! It is important to change filters regularly to
sustain the performance and energy efficiency of the unit.
Disassembly instructions The user manual, which can be downloaded at www.nilan.dk
AEC - annual electricity consumption 199 kWh/år (100 m2)
AHS** average climate 4667 kWh (100 m2)
AHS cold climate 9110 kWh (100 m2)
AHS warm climate 2106 kWh (100 m2)