nilan Combi S 302 Polar Top User manual

USER MANUAL
CTS602 HMI BY NILAN
Combi S 302 Polar Top (English)
Version 3.00 - 01.10.2019

TABLE OF CONTENTS
Safety
Power supply................................................................................................................................................................................................................................................................... 3
Disposal............................................................................................................................................................................................................................................................................................. 3
Ventilation unit............................................................................................................................................................................................................................................................. 3
Heatpump .......................................................................................................................................................................................................................................................................... 3
General information
Introduction...................................................................................................................................................................................................................................................................... 4
Type plate........................................................................................................................................................................................................................................................................... 4
Quick guide
Control panel functions................................................................................................................................................................................................................................................... 5
Main screen elements........................................................................................................................................................................................................................................... 5
Settings options on the main screen.....................................................................................................................................................................................................6
Warnings and alarms.............................................................................................................................................................................................................................................. 7
Settings menu overview.....................................................................................................................................................................................................................................8
Service and maintenance
Maintenance................................................................................................................................................................................................................................................................................ 9
Regular maintenance ............................................................................................................................................................................................................................................9
External cleaning ....................................................................................................................................................................................................................................................... 9
Water trap...........................................................................................................................................................................................................................................................................9
Filter replacement.....................................................................................................................................................................................................................................................9
The exchanger................................................................................................................................................................................................................................................................9
Illustration of filter change.......................................................................................................................................................................................................................... 10
Service............................................................................................................................................................................................................................................................................................ 11
Annual service .......................................................................................................................................................................................................................................................... 11
Internal cleaning ..................................................................................................................................................................................................................................................... 11
Check the air intake and outlet .............................................................................................................................................................................................................. 11
Check ventilation ducts .................................................................................................................................................................................................................................. 11
The heat pump .......................................................................................................................................................................................................................................................... 11
User settings
Ventilation settings..........................................................................................................................................................................................................................................................12
Stop the unit................................................................................................................................................................................................................................................................. 12
Operating function................................................................................................................................................................................................................................................ 12
Alarm.................................................................................................................................................................................................................................................................................... 13
Show data........................................................................................................................................................................................................................................................................14
Date/Time.......................................................................................................................................................................................................................................................................15
Week program............................................................................................................................................................................................................................................................ 16
Heating of supply air........................................................................................................................................................................................................................................... 18
Cooling.................................................................................................................................................................................................................................................................................20
Air humidity...................................................................................................................................................................................................................................................................21
CO2 .........................................................................................................................................................................................................................................................................................22
Air exchange.................................................................................................................................................................................................................................................................23
Air filter..............................................................................................................................................................................................................................................................................23
Temperature control.......................................................................................................................................................................................................................................... 24
Language..........................................................................................................................................................................................................................................................................24
Alarm list
Combi unit................................................................................................................................................................................................................................................................................... 25
Alarm list ......................................................................................................................................................................................................................................................................... 25
Product data
Declaration of compliance............................................................................................................................................................................................................................ 27
2

Safety
Power supply
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, always contact an authorised
electrician to rectify the error.
CAUTION
Always disconnect the power supply to the unit before opening the unit doors, for instance for
installation, inspection, cleaning and filter change.
Disposal
Ventilation unit
Nilan’s units consist mainly of recyclable materials. They must, therefore, not be
mixed with household waste, but must be delivered to your local recycling center
for disposal.
Heatpump
Concerning disposal of units with heat pumps, it is important to contact the local
authorities for information about correct handling of these. The heatpump
contains the refrigerant R134a, which is harmful to the environment if not
handled correctly.
Combi S 302 Polar Top (English) BY NILAN
3

General information
Introduction
ATTENTION
The unit must be started up immediately after installation and connection to the duct system.
When a ventilation unit is not in operation, humidity from the rooms may penetrate into the
ducts and create condensation. Condensate water may leak out of the valves and damage
furniture and floors. Condensation may also form inside the unit, which can damage its
electronics and fans.
The unit is delivered fully tested and ready for operation.
Type plate
On top of the unit you find Nilans type plate.
Note: Contact Nilan a/s with questions about the product, it is important to have the unit name and
serial No. (SN) ready. On the basis of this information, please contact service department find all
informations about the relevant aggregate and thus provide information and answer questions about
what the aggregate consists of/contains, as well as the software used.
4

Quick guide
Control panel functions
Main screen elements
The main screen of the HMI panel contains the settings options and the information that an operator
mostly uses.
1. Shows the current room temperature in the
house, measured via the extract air.
2. Shows the current air humidity. If a CO2 meter
has been installed, it will be shown next to air
humidity.
3. Shows the current fan speed level.
4. Shows the current supply air temperature
5. Shows the current outdoor temperature
measured via the outdoor air intake
6. Shows the current discharge air temperature
7. Shows the menu icons listed below
8. Shows the mode icons listed below
9. Access to the settings menu which contains
more settings options
Menu icons Mode icons
Stop icon
Indicates that the unit has stopped
Compressor icon
Indicates that the compressor is active
User selection icon
Indicates that the user selection function
is active
Heating icon
Indicates that the unit is heating up the
supply air via the compressor or the
after-heating element
Week program icon
Indicates that the week program function
is active
Cooling icon
Indicates that the unit is cooling the
supply air via the compressor or the
bypass
Alarm icon
Is displayed during alarms or warnings
De-icing ikon
Appears when the heat pump defrosts
Combi S 302 Polar Top (English) BY NILAN
5

Settings options on the main screen
The settings options which the user needs in daily life can all be controlled from the main screen of the
panel.
If you select the option of current room temperature, the
desired room temperature will be displayed.
The desired room temperature can be adjusted by pressing
the up-or-down arrows followed by the cancel icon (bottom
left) or the accept icon (bottom right).
If you select the option of current fan speed level, the
desired fan speed level will be displayed.
The desired fan speed level can be adjusted by pressing the
up-or-down arrows followed by the cancel icon (bottom left)
or the accept icon (bottom right).
6

Warnings and alarms
Should an error occur in the operation of the unit, a warning or an alarm will be displayed. A warning will
appear in the top righthand corner in the menu bar.
If you press the symbol, a description of
the warning or the alarm will be displayed.
The warning or the alarm can be reset by
pressing "Clear Alarm".
A warning indicates that something requires attention, for instance that filters need
changing.
The unit operates normally.
An alarm indicates a serious fault with the unit that is likely to require investigation by
an expert.
The unit has stopped.
Combi S 302 Polar Top (English) BY NILAN
7

Settings menu overview
The settings menu is constructed to make it easy to navigate through.
8

Service and maintenance
Maintenance
Regular maintenance
Your Nilan ventilation unit will last for many years if it is correctly maintained. Correct maintenance
will also ensure that the unit runs optimally at all times with low energy consumption.
In the following we point out the regular maintenance which you can perform yourself and the annual
service which should be carried out by a professional.
External cleaning
The ventilation unit
The outside of the unit can be cleaned with a mild soap solution.
The ceiling valves
Over time a ring may develop round the inlet valves. This is a natural process and is due to dust in the
room air, not to defective filters or failure to change filters.
As very few painted ceilings are washable, you are recommended to vacuum round the valve and then
wipe the area with a damp cloth.
It is a good idea to dismantle and clean the valves when necessary. The valves have been set by the
installer for a specific airflow, so it is important not to rotate them, as this will change the setting and
unbalance the ventilation system.
Water trap
The water trap can dry out and prevent water from draining from the condensate tray, because air will
then blow into the unit. Condensate water will accumulate in the condensate tray. This will eventually
overflow and potentially cause water damage to the surface supporting the unit.
The water trap should therefore be checked regularly and filled with water, especially in the summer
when the risk of the water trap drying out is highest.
Filter replacement
The purpose of the filters is to protect the fans and the heat exchanger from dust and dirt, which may
cause damage.
For operation to run smoothly, it is important to change the filters as required. The filter timer in
Nilan’s control system is set by default to indicate that filters should be replaced after 90 days, but this
can be changed as required to 180 or 360 days.
If the filters are not changed, ventilation will lessen. This may cause the indoor climate to deteriorate
and affect the automatic humidity control system of the unit.
The exchanger
The exchanger should be checked for dust and dirt every two years to ensure that air can pass through
unhindered. A blocked exchanger will increase power consumption.
Combi S 302 Polar Top (English) BY NILAN
9

Illustration of filter change
1. 1. Switch off the unit on the control panel before
opening the door.
2. 2. Turn the thumb screws in the door at the top right of
the unit and open the door.
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. The filter is placed back
in the unit with filter mat upward
8. In the ALARM menu on the control panel, press the
alarm symbol at the top right and reset the alarm here.
10

Service
Annual service
It is important to perform an annual service on the unit to ensure it will continue to perform optimally
with low energy consumption and long service life.
You are recommended to take out a service agreement with the installer, as certain elements of the
service require an authorised technician.
Internal cleaning
For hygienic reasons, it is important that the unit undergoes annual internal cleaning. This will prevent
the formation of fungus and bacteria which impair the internal air quality.
• Wipe down the internal plate parts and pipes with a damp cloth and a mild soap solution.
• Check and clean the evaporator coil.
• Check and clean the counterflow heat exchanger. If necessary, it may be removed and rinsed with a
shower head.
• Clean the condensate trays with a damp cloth and a mild soap solution.
• Check the condensate outlet to make sure the water can exit freely.
Check the air intake and outlet
It is important for operation of the unit that air can freely move through the air intake and outlet.
If roof stacks have been fitted to the air intake and outlet, check that they are not blocked with birds'
nests, leaves or other dirt which can hamper air passage.
If, instead of roof stacks, grilles have been mounted in facades or eaves, check that they are not
clogged with leaves or dirt. Grilles are particularly likely to become clogged.
Check ventilation ducts
It is important for operation of the unit that there is free air passage through the ventilation ducts.
After some years of operation, dirt will attach itself to ventilation ducts or tubes, and accumulations
may lead to higher pressure drop in the ducts, leading to higher power consumption. It is therefore
important to clean out the ducts when too much dirt has collected.
After attending to the inlet and outlet valves, it will be advisable to have them adjusted again, to
ensure optimum operation of the ventilation system.
However, it will not be necessary to clean ducts more than every few years.
The heat pump
The heat pump must be inspected in accordance with applicable laws and regulations, such that it is
kept in good condition and meets safety and environmental requirements.
The installer is obliged to inform the owner/user about applicable laws and regulations.
Combi S 302 Polar Top (English) BY NILAN
11

User settings
Ventilation settings
Stop the unit
If it is necessary to open the doors while servicing the unit, for instance when changing filters, the unit
must be turned off.
The functions of the unit are activated in Settings under Operation.
If the unit is off, an icon appears on the main screen.
Operation
↳Operation Settings:
Description:
Off / On
The unit must be turned off before the doors are
opened during a service
Operating function
You can program the unit to operate in “Auto”, “Heating” or “Cooling” mode.
ATTENTION
The "Heating" and "Cooling" functions overrule the week program. If a week program has been
set up, the mode will automatically change to “Auto” at the next change in the week program.
Operating function
↳Auto Settings:
Standard setting:
Description:
Auto / Cooling / Heating
Auto
Auto: The unit operates in accordance with the
selected values
Cooling: The unit operates in accordance with the
selected values, but cooling is possible in winter mode
if the preconditions for cooling are present.
Heating: The unit operates in accordance with the
selected values, but the bypass damper cannot be
opened and active cooling not be activated even if the
preconditions are present.
12

Alarm
You can read warnings and alarms in the "Alarm" menu. It is likewise possible to reset warnings and
alarms in this menu.
When a warning or an alarm has been triggered, an icon appears on the main screen
Alarm
↳Alarm number and name Description: When selecting this, a list will appear showing the
alarm ID number, information about the type of alarm,
and whether it is critical or not. (See the alarm list for
more information)
You can approve the alarm by selecting "Clear Alarm”
ATTENTION
When an alarm is active, it cannot be reset in the panel. When the alarm has been resolved, it will
figure as inactive and it can be reset by selecting "Clear Alarm”.
Combi S 302 Polar Top (English) BY NILAN
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Show data
It is possible to read off current data for Comfort units.
Show data
↳Operating state Description: Shows the operating setting in which the unit is
running.
↳Bypass Description: Shows whether the bypass damper is open or closed.
↳T1 Outdoor air Description: Shows the outdoor temperature before reaching the
pre-heating element.
↳T2 Supply air Description: Shows the supply air temperature. If an after-heating
element has been installed, T7 will be shown instead.
↳T4 Discharge Description: Shows the discharge air temperature.
↳T5 Condenser Description: Shows the condenser temperature.
↳T6 Evaporator Description: Shows the evaporator temperature.
↳T7 Supply air Description: Shows the supply air temperature if an after-heating
element has been installed. Otherwise T2 will be
shown.
↳T10 Extract air/Room Description: Shows the current room temperature as measured in
the extract air.
↳Air humidity Description: Shows the current air humidity in the dwelling.
↳CO2 Description: Shows the current CO2 level in the dwelling (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: Press "Unit information" for more information.
↳Unit type Description: Shows the name of the product the software has been
set to work with.
↳Software version Description: Shows the installed software version.
↳Panel software Description: Shows the installed software version on the panel.
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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. The time is shown under
“Date / Time” in the display.
Date / Time
↳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.
Combi S 302 Polar Top (English) BY NILAN
15

Week program
You can program the unit to run in accordance with specific settings at fixed times during the week via
a week program.
On the main screen an icon will be displayed when the week program is active
Week program
↳Select program Description: You can select from the Programs 1, 2, 3 or off.
↳Edit program Description: The selected week program is now active and can be
edited.
↳Monday Description: You can select either Monday, Tuesday, Wednesday,
Thursday, Friday, Saturday or Sunday.
↳Function 1 Description: Under each function, you can set time, temperature
and fan speed level.
↳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.
↳Temperatures Settings:
Standard setting:
Description:
5 - 40 °C
22 °C
Set the desired room temperature here.
↳Function 2 Under each function, you can set time, temperature
and fan speed level.
↳Start time Settings:
Standard setting:
Description:
Hours and minutes
8:00
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 1
Select the desired fan speed level here.
↳Temperatures Settings:
Standard setting:
Description:
5 - 40 °C
22 °C
Set the desired room temperature here.
↳Function 3 Description: Under each function, you can set time, temperature
and fan speed level.
↳Start time Settings:
Standard setting:
Description:
Hours and minutes
15:00
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.
↳Temperatures Settings:
Standard setting:
Description:
5 - 40 °C
22 °C
Set the desired room temperature here.
↳Function 4 Description: Under each function, you can set time, temperature
and fan speed level.
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↳Start time Settings:
Standard setting:
Description:
Hours and minutes
22:00
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 1
Select the desired fan speed level here.
↳Temperatures Settings:
Standard setting:
Description:
5 - 40 °C
22 °C
Set the desired room temperature here.
↳Functions 5 and 6 Settings:
Standard setting:
Description:
Under each function, you can set time, temperature
and fan speed level.
Off
The program will run until the next change in the week
program.
↳Reset program Description: You can reset the program by selecting the approve
icon.
Combi S 302 Polar Top (English) BY NILAN
17

Heating of supply air
If an after-heating element has been installed (accessory), you set the supply air to be heated here.
When the room temperature (measured in the extract air) falls below the desired room temperature
set on the display, the heat pump and the after-heating element start heating the supply air.
Supply air heating
↳Setting Settings:
Standard setting:
Description:
Off / Heating / Requirement
Requirement
Off: The supply air is not heated.
Heating: Constant heating in relation to min./max.
Requirement: The supply air temperature is regulated
automatically by the curve setting
↳Heating Description: Constant heating of the supply air via PI-regulation in
accordance with the room temperature
↳Minimum supply air temperature Settings:
Standard setting:
Description:
5 - 40 ºC
20 ºC
Minimum supply air temperature
↳Maximum supply air temperature Settings:
Standard setting:
Description:
20 - 50 ºC
40 ºC
Maximum supply air temperature
↳Requirement: Description: Heating of the supply air is curve controlled. The
supply air is controlled by the outdoor temperature
and not by the current room temperature.
↳Minimum supply air temperature Settings:
Standard setting:
Description:
5 - 40 ºC
20 ºC
The minimum supply air temperature overrules the
curve control
↳Maximum supply air temperature Settings:
Standard setting:
Description:
20 - 50 ºC
40 ºC
The maximum supply air temperature overrules the
curve control
↳Outdoor temperature compensation Settings:
Standard setting:
Description:
0 - 10
10
Choose which curve the control system is to be
regulated by
↳Offset curve Settings:
Standard setting:
Description:
-15 - 10 ºC
0 ºC
You can shift the curve to make it fit the heating
requirements of the dwelling
↳Delay Settings:
Standard setting:
Description:
0 - 30 minutes
10 minutes
Set a chosen delay for when the after-heating element
should start, once a need for heating has been
established.
18

The heating curves
The outdoor temperature controls the supply air temperature.
20
-20-15-10-505101520
30
40
50
60
70
80
90
100
1
2
3
4
6
7
8
9
10
5
Max. temperature
Min. temperature
Supply air temperature
Outdoor temperature
Combi S 302 Polar Top (English) BY NILAN
19

Cooling
The unit can cool the dwelling via bypass-cooling and/or active cooling via the heat pump. For the unit
to switch to cooling mode it must operate in summer mode, or you must activate cooling in “Operating
function”.
Bypass cooling:
If the room temperature, measured in the extract air, is higher than the cooling setpoint -2 ºC and the
outdoor temperature is below the room temperature, the bypass will open and commence bypass
cooling.
The bypass will close again once the room temperature reaches the desired level + 1ºC
If the outdoor temperature exceeds the room temperature and cooling becomes necessary, the bypass
will not open. However, the unit will start cooling recovery via the heat exchanger where the outdoor
air is cooled by the extract air.
Active cooling:
If the room temperature (measured in the extract air) is higher than the desired room temperature +
the cooling setpoint, the compressor will start up and begin active cooling of the supply air. The
compressor will stop when the room temperature falls below the cooling setpoint -1ºC.
Cooling
↳Cooling setpoint Settings:
Standard setting:
Description:
Off / +1 / +2 / +3 / +4 / +5 / +7 / +10 ºC
Setpoint + 5 ºC
Off: Active cooling is deactivated.
Setpoint + X ºC: Indicates when active cooling is to
start. The setpoint is the desired room temperature as
selected on the front of the panel.
↳Ventilation in connection with cooling Settings:
Standard setting:
Description:
Off / 2 / 3 / 4
Off
Off: The fan speed level does not change when the unit
switches to cooling mode.
Level 2-4: Select the fan speed level you want the unit
to switch to when in cooling mode. This happens
already at bypass cooling.
20