nilan Combi 302Polar User manual

Combi 302 Polar
User manual
CTS 602 by Nilan
Version: 10.00, 24-11-2016

Table of contents
Table of contents ............................................................................................................................2
Figure table ....................................................................................................................................2
Introduction..................................................................................................................................... 3
Review of the thermometer sensors ............................................................................................... 4
CTS 602 panel ............................................................................................................................... 5
How to use the menu:.................................................................................................................5
Menu overview ...............................................................................................................................6
Operating mode..............................................................................................................................7
Main menu..................................................................................................................................8
Show alarms...............................................................................................................................9
Show data................................................................................................................................. 12
User select................................................................................................................................ 13
User select 2............................................................................................................................. 14
Setting of clock.......................................................................................................................... 15
Week programme ..................................................................................................................... 16
Heating surface......................................................................................................................... 18
Cooling ..................................................................................................................................... 19
Humidity.................................................................................................................................... 20
Air exchange............................................................................................................................. 21
Air filter ..................................................................................................................................... 22
Temp. control............................................................................................................................ 23
Setting of language................................................................................................................... 24
Filter change................................................................................................................................. 25
Condensation drain and water trap............................................................................................... 25
Accessories / spare parts ............................................................................................................. 26
Figure table
Figure 2: Thermometer sensors...................................................................................................... 4
Figure 3: CTS 602 panel.................................................................................................................5
Figure 4: ”Menu overview”.............................................................................................................. 6
Figure 5: Main menu.......................................................................................................................7
Figure 6: Headlines in the ”Main menu”.......................................................................................... 8
Figure 7: The ”Show alarms” menu................................................................................................. 9
Figure 8: The ”Alarm Indicators" menu ..........................................................................................11
Figure 9: The ”Show data" menu.................................................................................................. 12
Figure 10: The ”User select" menu............................................................................................... 13
Figure 11: The ”User select 2" menu............................................................................................. 14
Figure 12: ”Setting of clock".......................................................................................................... 15
Figure 13: The Settings of ”Week program”.................................................................................. 16
Figure 14: The ”Week program” menu.......................................................................................... 17
Figure 15: The "Heating surface" menu........................................................................................ 18
Figure 16a: The ”Cooling" menu................................................................................................... 19
Figure 16b: The ”Cooling" menu................................................................................................... 19
Figure 17: The ”Humidity" menu................................................................................................... 20
Figure 18: The ”Air exchange" menu ............................................................................................ 21
Figure 19: The "Air filter" menu..................................................................................................... 22
Figure 20: The "Temp. control" menu............................................................................................ 23
Figure 21: The „Language" menu................................................................................................. 24
Figure 22: Filter change................................................................................................................ 25

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Introduction

Please control that the following documents have been delivered together with the unit:
- Directions for assembly and use
- CTS 602 directions (this document)
- Electrical chart
The purpose of this manual is to clearly show the menus and possibilities of the CTS 602 control.
This manual may describe functions that are not accessible in your unit.
The directions can be used for all types of units described in figure 1 page 4.

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Review of the thermometer sensors
Figure 1: Thermometer sensors
Explanation for figure 2:
T1 - is the thermometer sensor for the fresh air and should be placed at the north side of the
building.
T2 - is the thermometer sensor for the inlet air(without heating surface).
T5 - shows the temperature of the condenser.
T6 - shows the temperature of the evaporator.
T7 - is the thermometer sensor for the inlet air after a heating surface.
T10 - is the thermometer sensor for the exhaust air in a room (accessory).
T15 - is the thermometer sensor in the CTS 602 panel.
The temperature of the sensors can be read in the “Show data” menu.

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CTS 602 panel
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
Figure 3: CTS 602 panel
The following is indicated by the light-emitting diode at the front of the CTS 602 panel:
Constant yellow light: the compressor is in operation
Flashing yellow: the unit is in alarm condition
The panel can show 2 lines of text with each 8 characters.
The upper line shows a guiding text.
The bottom line shows the matching values to the guiding text.
The text in the display in “on” as long as there is power to the unit and will not turn off even though
the unit is set to “off” or has not been operated for a longer period of time.
How to use the menu:
It is possible to adjust a value or a function by finding the matching menu via por .
To activate the desired menu press ENTER.
To adjust the settings of the value press ENTER until the value flashes.
The adjustment can now be done viap.
To save the chosen value press ENTER.
It is advisable to have the panel and/or the review of the menus near by during the reading of the
menus.
If none of the press buttons are activated for one minute the control will automatically return to the
main menu.
If you are in the middle of the programming when the control returns to the main menu all data will
be saved if they previously are saved by pressing ENTER. It is always possible to return to the
programming to continue.

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Menu overview
The control will have the main menu as starting point, (the menu in the full-drawn frame). From
here it is possible to go through the other menus via p.
ALARMS
SHOW
AUTO W/1
>2<19°C
USER
10-09-13
TM.
.. 12:10
SELECT
2
WEEK
PROGRAM
COOLING
AIR
EXCHANGE
AIR
FILTER
TEMP.
CONTROL
LANGUAGE
ENGLISH
DATA
SHOW
USER
SELECT
HUMIDITY
Showing of alarms and resetting of alarms. Alarm log with
the latest 16 alarms.
Operating mode ( heat, auto, cool), temperatures, fan
speed and software version.
Main menu: shows operating mode. Press ESC to main
menu.
There are five custom options: ”ext offs”, ”exhaust”, “inlet”,
“extend” and “OFF”.
User select 2 as user select.
Setting of clock
Setting of inlet temperature for cooling via bypassing the
inlet air around the heat exchanger and via compressor if
this is an option (not possible on all types of units)
Activating the week programme
In the ”Air filter” menu it is possible to chose the interval of
the filter guard.
Setting of minimum inlet temperatures
Choose language shown in control panel
Starts the compressor and enable you to choose a low fan
speed when the outdoor air temperature is low.
Offers the option to set a higher/lower fan speed at a high/
low humidity level
.
Submenu
Mainmenu
ALARMS
SHOW
AUTO W/1
>2<19°C
10-09-13
TM.
.. 12:10
LANGUAGE
ENGLISH
DATA
SHOW
Figure 4: ”Menu overview”

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Operating mode
The main menu shows 3 different values: operating mode, ventilation step and temperature. Those
values indicate the state of the unit and are selected by the user.
The main menu is automatically shown 15 seconds after the unit is electrically connected and is
now ready to be set.
AUTO */1
>2< 19°C
Ventilation step
* : the ”USER
SELECT” menu is
active
1,2,3 : week
programme
is active
W : electrical heating
element is active
L: low ventilation
step at low outdoor
temperature
Operating mode: OFF
AUTO
COOL
HEAT
Desired
roomtemperature
(5-30°C).
Figure 5: Main menu
Desired room temperature can be adjusted by pressing ENTER once. The number at °C flashes
and the value can be set via p. The desired value must be approved by pressing ENTER once.
The operating mode can be adjusted by pressing ENTER twice. The actual mode is flashing and
can be set via p and approved by pressing ENTER once. In “AUTO”-mode the bypass-draught
control is automatically opened or closed according to the temperature setting and the unit auto-
matically switches between cooling and heating. As regards cooling there is a neutral zone of 5 °C
below room temperature before the unit actively cools via compressor. For further information see
page 20.
The ventilation step can be adjusted by pressing ENTER three times. The actual ventilation step is
flashing and can be set via p and approved by pressing ENTER once.

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Main menu
The main menu is automatically shown 15 seconds after the unit is electrically connected.
” ” indicates that the menu point flashes and can be set to another value.
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
The indicated ventilation
AUTO
>2< ”19°C”
AUTO
”>3<” 19°C
”COOLING”
>2< 19°C
”HEAT”
>2< 19°C
”AUTO”
>2< 19°C AUTO
”>2<” 19°C
ENTER ENTER
AUTO
>2< 19°C
AUTO
>2< ”5-30°C”
ENTER
In AUTO mode the unit
automatically choses
cooling or heating
according to the desired
room temperature.
Desired room
temperature. set
between 5 to 30 ° C.
Cooling according to the
desired room
temperature.
step applies for the
exhaust.
Heating according to the
desired room
temperature.
Main menu
Figure 6: Headlines in the ”Main menu”

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Show alarms
If the unit is in a state of alarm the yellow light-emitting diode on the front of the CTS600 panel will
flash.
The ”Show alarms” menu indicates the type of alarm and the time of the alarm. This is also the
menu where the alarm should be reset.
06-05-30
TI 11:32 ENTER
06-05-30
TI 10:28
STATUS
ALARM
T1 20°C
T2 20°C
T3 0,00
T4 0,00
OUT 1-8
00000000
OUT 9-16
00000000
OUT 17-24
00000000
ALARMLOG:
The log is recovered
after power cut and
shows the 16 most
recent alarms
AL 1 is the newest.
ALARM 6
DEFROST
SHOW
ALARMS ENTER ENTER
ALARM 4
PRESSURE
ALARM 13
BOILING
ALARMLOG AL 1:
DEFROST
AL 2:
PRESSURE
AL 3:
BOILING
LIST OF ALARMS:
Shows from 0-3
active alarms. The
newest and most
critical alarms are
shown first.
The list is erased if
the power is cut.
ALARMLOGDATA:
Snapshots from the
time of the alarm.
Resetting of alarms:
Alarms should be reset
individually.
alarms can be reset.
ALARM 0 indicates
that all alarms are reset.
ENTERENTER
00-00-00
TM. 00:00
Only active
Figure 7: The ”Show alarms” menu

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Alarm codes are given because of a fault situation or when it is important to inform the user.
The alarms are divided into the following categories:
C Critical Operation is partly or completely stopped as long as the alarm is active.
W Warning These types of alarms will become critical if the problem is not solved
quickly.
I Informative Normal operation is not affected. Alarm disappears when it is reset.
Alarm
code
Categori
Text in
display
Description/ cause
How to remedy alarms
00
--
--
No alarms
01
C
HARDWARE
Error in control hardware
Contact service if reset
does not help
02
C
TIMEOUT
Warning alarm W has become a
critical alarm.
Note and reset the alarm.
Contact service if alarm
does not disappear.
03
C
FIRE
Fire detecting thermostat.
Unit is stopped because the fire
detecting thermostat has been
activated.
If there has not been a fire
please contact service.
04
C
PRESSURE
High or low pressure switch in the
cooling circuit has been triggered,
probably caused by:
High pressure:
Extreme hot
Cloaked filter
Defective fan
Low pressure:
Extreme cold
Unit might have lost coolant
Cloaked filter
Defective fan
Check for errors and reset
alarms.
If you are unable to reset
the alarm or if the alarm
occurs often please contact
service.
06
C
DEFROST
The unit is defrosting.
The frost protection of the heat
recovery system is insufficient
and the unit will stop. This can be
caused by extreme low outdoor
temperatures
Contact service if reset
does not help. Note the
actual sensor temperatures
from the menu “Show data”
to help service.
08
C
FROST
One of the temperature sensors in
the unit is short circuit or defect.
Note the sensor and con-
tact service.
09
C
OVERTEMP
One of the temperature sensors in
the unit is disconnected or defect.
Note the sensor and con-
tact service.
10
C
OVERHEAT
The electrical heating element is
overheated. Lack of airflow due to
cloaked filters, cloaked air intake
or defect inlet fan.
Check if air flows into the
house.
Check filter and air intake.
Reset alarm.
Contact service if the above
does not help.
11
C
AIRFLOW
Lacking inlet airflow
See alarm code 10
13
C
BOILING
Boiling protection of the hot water
Contact service
15
W
ROOM LOW
When room temperature drops
below 10°C the unit will stop in
order to protect the house from
further cooling down. The function
is useful when the house is not
occupied and the main heating
has stopped.
Heat up the house and
reset the alarm

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Alarm
code
Categori
Text of
display
Description/ cause
How to remedy alarms
16
I
SOFTWARE
Error in software
Contact service
17
I
WATCHDOG
Error in software
Contact service
18
I
CONFIG
Parts of the programming are lost
and can be caused by a longer
period of power failure or light-
ning. The unit will keep on
operating on standard program-
ming.
Reset alarm
Re-programme the week
programme.
Contact service if the unit
does not operate as before.
Supplementary programs
can be lost.
Only service can access
the supplementary pro-
grams and menus.
19
I
FILTER
The filter guard is set to give
alarm when a pre-set period of
time has occurred
Clean /replace filter and
reset alarm
20
I
LEGIONEL
Legionella temperature has not
been reached within the time limit
Contact service
21
I
POWER
Occurs if power has been cut off
for a longer period of time
The week programme
should be checked and
adjusted if necessary.
Reset alarm.
22
I
T AIR
The pre-set temperature of the
inlet air cannot be reached
Set a lower air inlet tem-
perature and reset alarm.
23
I
T WATER
Warming up the hot water is not
possible
Contact service.
24
I
T HEAT
Warming up the water for central
heating is not possible.
Contact service.
27-57
C
T
x
KURZ
One of the temperature sensor of
the device is shorted or defec-
tive.Tx = +99 °C
Please note which sensor T
x, there is shorted, and
contact the customer ser-
vice.
28-58
C
T
x
OFFEN
One of the temperature sensor of
the device is disconnected or
defect Tx= -40 ° C
Please note which sensor T
x, there is interruped, and
contact the customer ser-
vice.
70
W
ANODE
There is an error at the anode on
the hot-water tank. It has not been
connected correctly or it has cor-
roded.
Contact service.
71
I
DFR EXCH
The maximum defrosting time for
the counter flow heat exchanger
has been exceeded. This could
be due to the fact that the system
has been exposed to very low
temperatures.
Contact our after sales
department if resetting the
alarm does not help.
If possible, inform the after
sales department of the
current working tempera-
ture from the menu VIS
DATA (SHOW DATA).
72
I
EVAP LOW
Abnormally low evaporator tem-
perature
Check supply air valve
92
I
PRESET
Error by writing or input of the
electrician’s adjustments
Contact service.
Figure 8: The ”Alarm Indicators" menu

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Show data
The actual operation data can be read in the ”Show data” menu. See review of thermometer sen-
sors at page 5.
SHOW
DATA
WATER B
T12 40°C
STATUS
HEAT
ANODE
OK
WATER T
T11 50°C
OUTL
T4 5°C
Softwareversion
in the unit
See sensor
overview
page 5 the controlpanel
INLET
FLOW 2
SOFTWARE
1 .2.21
EXHAUST
FLOW 2
COND
T5 40°C
SOFTWARE
2 1.01
ENTER
EVAP
T6 -1°C
TYPE
VP18 Com
HUMIDITY
37%
CO2
492ppm
EXTERNAL
T10 19°C Temperature sensor
T10
FRESHAIR
T1 9°C
INLET
T2 22°C
These sensors are
only shown if they
are installed
BYPASS
OPEN
EXH
on figure 2
Type
Anode condition
OK, ERROR or SERVICE
Softwareversion in
PANEL
T15 20°C T15
Temperature sensor
Figure 9: The ”Show data" menu

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User select
The menu CUSTOM OPTIONS overrides the operating mode of the main menu by activating an
external switch.
”VENTILAT”: There is a possibility here to run with a higher or lower speed on the air exhaust and
air inlet for a limited amount of time. The external pressure will activate the function. The function
has high priority.
”exhaust” and ”inlet”: These two options increase or reduce the velocity of the exhaust or inlet air
respectively for a limited period of time. The remaining functions of the operating mode remain
unaltered. An external switch activates the timer function.
Another external switch ensures that the fans remain at the desired ventilation level until the switch
is turned off.
”extend”: This option controls the velocity of the exhaust and inlet air and can be used to change
the temperature of the inlet air for a limited period of time. An external switch activates the timer
function.
“OFF”: Deactivates the external switch.
”ext offs”: Provides the possibility of choosing an afterflow time and changing the set point in exter-
nal rooms.
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
Dette er kun
såfremt denne udgang
Mulighed for relæudgang
BRUGER
VALG
FORLÆNG
TID
HAST
ENTER ENTER
TEMP Brugervalg sættes ud
af funktion
TID 00:00
HAST >4<
TEMP 23
ENTER
ENTER
ENTER
”00:00"
VALG
”FORLÆNG”
VALG
”INDBLÆS”
VALG
”UDSUG”
VALG
”OFF”
VALG
”EKS OFFS”
Der skal vælges tid og
hastighed på samme
måde, som vist under
VALG FORLÆNG
ENTER
ENTER
ENTER
ENTER
VALG
°C
”>4<”
”23" °C
Ønsket tidsrum, som den
valgte driftsfunktion skal
vare, angivet i timer og
minutter. Max 8 timer.
Ønsket rumtemperatur (5-30°C),
Panelføler T15 er styrende føler.
Ønsket
ventilationstrin: 1-4.
OFF giver mulighed
for slukke anlægget
via ekstern
kontaktfunktion
R8,
er monteret.
muligt på tillægsprint.
Temperaturen lægges til .
eller trækkes fra setpunktet
Mulighed for for at
køre højere eller
lavere hastighed.Høj
prioritet.
VALG
”VENTILAT” ENTER
Der vælges
efterløbstid og
forskydning af
setpunkt for
ekstern rumvarme.
Vælges på samme
måde som vist
under VALG
FORLÆNG
VALG
”EMHÆTTE”
RE1: slutte kontakt for
styring af emhætte
spjældmotor
Figure 10: The ”User select" menu

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User select 2
User select 2 as user select
Dette er kun
såfremt denne udgang
Mulighed for relæudgang
BRUGER
VALG
FORLÆNG
TID
HAST
ENTER ENTER
TEMP Brugervalg sættes ud
af funktion
TID 00:00
HAST >4<
TEMP 23
ENTER
ENTER
ENTER
”00:00"
VALG
”FORLÆNG”
VALG
”INDBLÆS”
VALG
”UDSUG”
VALG
”OFF”
VALG
”EKS OFFS”
Der skal vælges tid og
hastighed på samme
måde, som vist under
VALG FORLÆNG
ENTER
ENTER
ENTER
ENTER
VALG 2
°C
”>4<”
”23" °C
Ønsket tidsrum, som den
valgte driftsfunktion skal
vare, angivet i timer og
minutter. Max 8 timer.
Ønsket rumtemperatur (5-30°C),
Panelføler T15 er styrende føler.
Ønsket
ventilationstrin: 1-4.
OFF giver mulighed
for slukke anlægget
via ekstern
kontaktfunktion
R8,
er monteret.
muligt på tillægsprint.
Temperaturen lægges til .
eller trækkes fra setpunktet
Mulighed for for at
køre højere eller
lavere hastighed.Høj
prioritet.
VALG
”VENTILAT” ENTER
Der vælges
efterløbstid og
forskydning af
setpunkt for
ekstern rumvarme.
Vælges på samme
måde som vist
under VALG
FORLÆNG
VALG
”EMHÆTTE”
RE7: slutte kontakt for
styring af emhætte
spjældmotor
Figure 11: The ”User select 2" menu

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Setting of clock
In case of power cut the clock will function for at least 24 hours. If the time function is lost there will
be an alarm.
Changing to daylight saving time has to be done manually.
” ” indicates that the menu point flashes and can be set to another value.
Use of the CTS602 panel:
-press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
Is only shown the first
time after setting up
the time function.
09-05-26
TU 12.10 YEAR 09 ENTER
ENTER YEAR
”09"
MONTH
”05"
Seconds are being reset
when minutes are adjusted
MONTH 05
DAY 26
WEEK
DAY 2
HOUR 12
MINUTE 10
DAY
”26"
HOUR
”12"
MINUTE
”10"
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
Figure 12: ”Setting of clock"

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Week programme
The unit is equipped with 3 standardized week programmes. See page 17.
The unit is set to programme 1 from the factory.
In addition to these programmes it is possible to program your own week programme which can be
one of the standard programmes with minor alterations.
” ” indicates that the menu point flashes and can be set to another value.
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
Programmes
Weekday
Function
Time
Ventilation step
Temperature
Programme 1
Monday –
Friday
1
2
3
4
6.00
8.00
15.00
22.00
3
1
3
1
21
17
21
17
Saturday –
Sunday
1
2
8.00
23.00
3
1
21
17
Programme 2
Monday –
Sunday
1
2
8.00
23.00
3
1
21
17
Programme 3
Monday –
Friday
1
2
7.00
16.00
3
OFF
21
21
MO 1 08.00
>1< 17°C
Time of program step activation.
If a program step should not be used
OFF should be chosen.
(OFF is located instead of 24.00)
Required room
temperature.
Week
day.
Program step.
6 program steps are
available each day.
Fan speed.
Weekly program settings
Figure 13: The Settings of ”Week program”

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SELECT
Here it is possible to make your own
programme or adjust one of the
standard programmes. If there is more
than one function at the same time only
the last one is active.
WEEK
SELECT
Here it is possible to
chose one of the 3
standard programmes.
The 3 programmes can
be altered but not deleted.
The original programme
can always be found.
Here it is possible to delete all
user made programmes. The unit
will continue in AUTO mode
without any week programme.
It is possible to copy the values from
one day to another.
SELECT
”PROG 1"
MO
1 06.00
>3 <
21°C
”CLEAR”
TU1 06.00
>3 < 21°C
MO TU
COPY
ENTER
ENTER
ENTER
”PROG 2"
MO2 08.00
>1 < 17°C
”PROG 3"
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER ENTER
MO TU
”COPY” TU WE
COPY
TU2-6
SELECT
OFF ENTER ENTER
The Unit operaters under
the main menu
MO4-6
MO3 OFF
>1 <
17°C OFF replaces 24.00
PROG 1
PROGRAM
SELECT
”OFF”
SELECT
SELECT
Figure 14: The ”Week program” menu

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Heating surface
The menu HEATING SURFACE is only accesssible when the system has a heating surface in-
stalled and when the control has been set up to a heating surface in the SERVICE MENU
Options that flash are indicated by ” ”.
On the CTS600 control panel, press:
-ESC to return to the previous menu
- p to scroll upwards or downwards through the menus or to
adjust the setting of an activated menu option
-ENTER to activate a menu option
- ENTER to confirm a new menu option setting
-OFF to switch off the controls
- ON to switch on the controls
HEATING
SURFACE SELECT OFF SELECT
”OFF”
SELECT
”ON”
ENTER ENTER ENTER
ENTER
When a heating surface is
installed T2 is replaced
with T7, which is the
sensor placed in the inlet
at the heating surface.
If you wish to disconnect the
heating surface this position should
be chosen.
The frost-protection is still active
and T7 is the active temperature
sensor for the inlet air.
Figure 15: The "Heating surface" menu

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Cooling
In the “Cooling” menu it is possible to cool the inlet air by bypassing the inlet air around the counter
flow heat exchanger. See figure 16a
If the unit has active cooling via compressor see figure 16b.
The COOLING menu gives the possibility of automatic high fan speed when high outside tempera-
tures.
” ” indicates that the menu point flashes and can be set to another value.
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
COOLING VENTILAT
HIGH OFF
ENTER ENTER VENTILAT
HIGH ”OFF”
Here it is possible to chose
high ventilation step when
cooling.
The value can be set to:
OFF, 2, 3, 4.
Figure 16a: The ”Cooling" menu
COOLING TEMP
SET +3 TEMP
SET ”3+”
ENTER ENTER The value can be set to:
OFF, +1, +2, +3,+5,+7,+10.
It is recommended that the
value is set to +3.
VENTILAT
HIGH OFF
Here it is possible to chose
high ventilation step when
cooling.
The value can be set to:
OFF, 2, 3, 4.
ENTER VENTILAT
HIGH ”OFF”
Figure 16b: The ”Cooling" menu

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Humidity
In the “Humidity” menu it is possible to regulate the ventilation step in accordance with the humidity
level.
Low ventilation step is only active in wintertime and at humidity levels below 30%.
High step is activated by a change from 10-5% of average RH from 40-80% over the last 24 hours
High ventilation step is deactivated when humidity drops 3% or more compared to the average
humidity level the last 24 hours.
It can last up to 3 minutes before high/low ventilation step i stabilized.
If there is a need for heat the "low humidity" is not activated.
” ” indicates that the menu point flashes and can be set to another value.
Use of the CTS602 panel:
- press ESC to go one step back in the menu
- press pto move up or down in a menu or to adjust an
activated menu
- press ENTER to activate a menu
- press ENTER to confirm a menu
- press OFF to turn off the unit
- press ON to turn the unit on
HUMIDITY FLOW
LOW 1
ENTER ENTER
Option of choosing low
ventilation step at low
humidity.
The value can be set to: OFF
and 1, 2, 3, .
FLOW
HIGH 4 ENTER ENTER
FLOW
HIGH ”4”
TIME
0 MIN ENTER ENTER
TIME
0 MIN
HUMIDITY
LOW ”1" ENTER
Option of choosing
high ventilation
step at high
humidity.
The value can be
set to: OFF and 2,
3, 4.
Adjustable range
between 15...45%
Standard is 30 %
LOW 30% ENTER ”30"% ENTER
Maximal duration for high
ventilation step caused by
high humidity.
"
LOW
Figure 17: The ”Humidity" menu