User manual
CTS 602 by Nilan
VP 18 M2
Version: 10.00, 13-04-2015
Software-version: 2.30
Table of contents
Table of contents ............................................................................................................................ 2
Figure table .................................................................................................................................... 2
Introduction..................................................................................................................................... 3
Types of units ................................................................................................................................. 4
Review of the thermometer sensors ............................................................................................... 5
CTS 602 panel ............................................................................................................................... 6
How to use the menu: ................................................................................................................. 6
Review of the menus ...................................................................................................................... 7
Menus in the CTS 602 control ..................................................................................................... 7
Operating mode .............................................................................................................................. 8
Main menu .................................................................................................................................. 9
Show alarms ............................................................................................................................. 10
Show data ................................................................................................................................. 13
User select ................................................................................................................................ 15
Setting of clock.......................................................................................................................... 16
Week programme ..................................................................................................................... 17
Factory settings for the 3 weekly programs: .............................................................................. 18
Cooling ..................................................................................................................................... 20
Air exchange ............................................................................................................................. 21
Air filter ..................................................................................................................................... 22
Temp. control ............................................................................................................................ 23
Setting of language ................................................................................................................... 24
Faultfinding ................................................................................................................................... 25
Maintenance ................................................................................................................................. 26
Energy saving ............................................................................................................................... 29
Accessories .................................................................................................................................. 30
Figure table
Figure 1: Types of units .................................................................................................................. 4
Figure 2: Diagram illustrating sensor location for VP 18 .................................................................. 5
Figure 3: CTS 602 panel................................................................................................................. 6
Figure 4: Menu headlines ............................................................................................................... 7
Figure 5: Main menu ....................................................................................................................... 8
Figure 6: Headlines in the ”Main menu” .......................................................................................... 9
Figure 7: The ”Show alarms” menu............................................................................................... 10
Figure 8: The ”Show data” menu .................................................................................................. 13
Figure 9: The ”User select” menu ................................................................................................. 15
Figure 10: Setting of clock ............................................................................................................ 16
Figure 11: The ”Week program” menu .......................................................................................... 17
Figure 12: The ”Hotwater” menu ................................................................................................... 19
Figure 13: The ”Cooling” menu ..................................................................................................... 20
Figure 14: The ”Air exchange” menu ............................................................................................ 21
Figure 15: The ”Air filter” menu ..................................................................................................... 22
Figure 16: The ”Temp. control” menu ............................................................................................ 23
Figure 17: The ”Language” menu ................................................................................................. 24
May be subject to change
page 2 af 30
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.
The manual may contain functions and facilities which are not available on your system.
Unless otherwise stated in the titles, the descriptions apply to all systems listed on page 4.
It is possible to e.g. increase the speed of the exhaustion for a limited period of time.
GETTING STARTED
The system is delivered ready for use.
The factory settings are suitable for most user requirements and it should therefore not be
necessary to change any settings other than those found in the main menu.
The main menu is described on pages 8 and 9.
May be subject to change
page 3 af 30
Types of units
Compressor
De-icing
Water for domestic use
x
Option for cooling air
x
High pressure protection
VP18 M2
Frost-protected heating coil
1
Heated air
Nr.
Type
The control is made for the following ventilation units.
x
x
x
x
Figure 1: Types of units
May be subject to change
page 4 af 30
Review of the thermometer sensors
VP18 M2
Figure 2: Diagram illustrating sensor location for VP 18
Explanation for figure 2:
T1
T5
T6
T11
T12
T15
-
is the thermometer sensor for the fresh air and should be placed at the north side of the
building.
shows the temperature of the condenser.
shows the temperature of the evaporator.
is the temperature at the top of the hot water tank.
is the temperature at the bottom of the hot water tank.
is the thermometer sensor in the CTS 602 panel.
The temperature of the sensors can be read in the “Show data” menu.
May be subject to change
page 5 af 30
CTS 602 panel
Use of the CTS602 panel:
- press ESC
to go one step back in the menu
- press qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto 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 p or q.
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 viapq.
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.
May be subject to change
page 6 af 30
Review of the menus
Menus in the CTS 602 control
CTS 602 control has 12 menus (if the unit is with cooling).
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 pq.
SHOW
ALARMS
SHOW
DATA
AUTO W/1
>2<
19°C
Alarm display and reset.
Alarm log containing the latest 16 alarms.
Operating mode (heat, auto, cool), temperatures, fan speed , type of unit and
software version.
Main menu: displays operating status.
Press ESC to return to the main menu.
USER
SELECT
Options: exhaust, inlet, ventilation, OFF. The function selected is activated via a
switch or pressure.
10-09-13
TM .. 12:10
Date and time settings . The time and date must be reset if the system has been
without power for more than 24 hours. Summer and winter time must also be set
manually.
WEEK
PROGRAM
Weekly program can be set to ON or OFF . When the program is active , 1, 2
or 3 is displayed in the main menu.
HEATING
SURFACE
Displays the data of the sanitary water production.
COOLING
Allows for you to set the injection temperature of cooling via compressor.
AIR
EXCHANGE
You can choose between a balanced air renewal , curve controlled air renewal
and air renewal controlled by the sanitary water need.
AIR
FILTER
The controls are factory set to activate a filter alarm every 90 days. The alarm
is reset in the VIEW ALARMS menu.
TEMP.
CONTROL
Setting the minimum temperature required in order for the bypass valve to
close. Maximum inlet air temperature can be set for a heating element.
LANGUAGE
ENGLISH
Select the required language: English, German, French, Swedish,
Danish, Norwegian or Finnish.
Figure 4: Menu headlines
May be subject to change
page 7 af 30
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.
* : the ”USER
SELECT” menu is
active
P : week programme
is active
W : electrical heating
element is active
L: low ventilation
step at low outdoor
temperature
Operating mode: OFF
AUTO
COOL
HEAT
AUTO
>2<
*
19°C
Ventilation step
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 pq. 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 pq and approved by pressing ENTER once. In “AUTO”-mode the bypass-draught
control is automatically opened or closed according to the temperature setting. As regards cooling
there is a neutral zone of 5 °C below room temperature before the unit actively cools via compressor.
The ventilation step can be adjusted by pressing ENTER three times. The actual ventilation step is
flashing and can be set via pq and approved by pressing ENTER once.
May be subject to change
page 8 af 30
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.
The options available on the main menu are shown in the figure below:
Use of the CTS602 panel:
- press ESC
to go one step back in the menu
- press qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
In AUTO mode the unit
automatically choses
cooling or heating
according to the desired
room temperature. Week
programme is possible.
AUTO
>2< 19°C
ENTER AUTO
>2< ”19°C”
AUTO
>2< ”5-30°C”
The indicated ventilation
step applies for the
exhaust.
ENTER ”AUTO”
>2< 19°C
”COOLING”
>2< 19°C
”HEAT”
>2< 19°C
ENTER AUTO
”>2<” 19°C
AUTO
”>3<” 19°C
Cooling according to the
desired room
temperature.
Week programme is
NOT optional.
Heating according to the
desired room
temperature.
Week programme is
NOT optional.
Figure 6: Headlines in the ”Main menu”
May be subject to change
page 9 af 30
Show alarms
If the unit is in a state of alarm the yellow light-emitting diode on the front of the CTS 602 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.
SHOW
ALARMS
ENTER ALARM 6
DEFROST
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.
ALARM 4
PRESSURE
ALARM 13
BOILING
ALARMLOG
ALARMLOG:
The log is recovered
after power cut and
shows the 16 most
recent alarms
AL 1 is the newest.
ENTER 06-05-30
TI 11:32
ENTER 00-00-00
TI 00:00
Resetting of alarms:Alarms should
be reset individually. Only active
alarms can be reset. ALARM0
indicates that all alarms are reset.
ENTER AL 1:
DEFROST
ENTER 06-05-30
TI 10:28
AL 2:
PRESSURE
STATUS
ALARM
AL 3:
BOILING
T1 20°C
T2 20°C
T3
T4
0,00
0,00
ALARMLOGDATA:
Snapshots from the
time of the alarm.
OUT 1-8
00000000
OUT 9-16
00000000
OUT 17-24
00000000
Figure 7: The ”Show alarms” menu
May be subject to change
page 10 af 30
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
W Warning
I Informative
Operation is partly or completely stopped as long as the alarm is active.
These types of alarms will become critical if the problem is not solved quickly.
Normal operation is not affected. Alarm disappears when it is reset.
Alarm
code
Categori
Text in
display
00
--
--
01
C
HARDWARE
02
C
TIMEOUT
03
C
FIRE
04
C
PRESSURE
06
C
DEFROST
08
C
FROST
09
C
OVERTEMP
13
C
BOILING
May be subject to change
Description/ cause
How to remedy alarms
No alarms
Error in control hardware
Warning alarm W has become a
critical alarm.
Fire detecting thermostat.
Unit is stopped because the fire
detecting thermostat has been
activated.
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
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
One of the temperature sensors in
the unit is short circuit or defect.
One of the temperature sensors in
the unit is disconnected or defect.
Boiling protection of the hot water
Contact service if reset does
not help
Note and reset the alarm.
Contact service if alarm does
not disappear.
If there has not been a fire
please contact service.
Check for errors and reset
alarms.
If you are unable to reset the
alarm or if the alarm occurs
often please contact service.
Contact service if reset does
not help. Note the actual
sensor temperatures from
the menu “Show data” to
help service.
Note the sensor and contact
service.
Note the sensor and contact
service.
Contact service
page 11 af 30
Alarm
code
Categori
Text in
display
Description/ cause
15
W
ROOM LOW
Heat up the house and
reset the alarm
16
I
SOFTWARE
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.
Error in software
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 lightning.
The unit will keep on operating on
standard programming.
19
I
FILTER
20
I
LEGIONEL
21
I
POWER
The filter guard is set to give alarm
when a pre-set period of time has
occurred
Legionella temperature has not
been reached within the time limit
Occurs if power has been cut off for
a longer period of time
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 programs and menus.
Clean /replace filter and
reset alarm
May be subject to change
How to remedy alarms
Contact service
Contact service
The week programme
should be checked and
adjusted if necessary.
Reset alarm.
page 12 af 30
Show data
The actual operation data can be read in the ”Show data” menu.
See review of thermometer sensors at page 5.
SHOW
DATA
ENTER STATUS
HEATING
ANODE
OK
Anode condition
OK, ERROR or SERVICE
PANEL
T15 20°C
EXTERNAL
T10 20°C
Roomt emperature
at T15 (sensor in
CTS 602-panelet)
INLET
T2 25°C
FRESH AIR
T1 20°C
WATER T
T11 50°C
WATER B
T12 40°C
The location of the
thermometer
sensors are shown
on page 5
COND
T5 25°C
EVAP
T6 24°C
INLET
FLOW 2
EXHAUST
FLOW 2
Software version in the
control
SOFTWARE
1 2.21
SOFTWARE
2 1.00
Software version in
the panel.
TYPE
VP 18c
Figure 8: The ”Show data” menu
May be subject to change
page 13 af 30
May be subject to change
page 14 af 30
User select
In the ”User select” menu it is possible to overrule the operation mode in the main menu.
It is possible to e.g. increase the speed of the exhaustion for a limited period of time.
If the ventilation step and/or temperature is being adjusted in the main menu any active user selections are deleted.
If user selections are active due to external switches the function cannot be deleted.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
Option for an extra relay output
R8. R8 is an accessory and
the option is only possible
via accessory pcb
The temperature is added
or subtracted to/from the
set point shown
in the main
.
menu.
USER
SELECT
ENTER SELECT
”EXTEND”
Required period in
which the selected
function is to remain
operative: stated in
hours and minutes.
Max 8 hours.
TIME
ENTER
TIME
”00:00"
00:00
FLOW
ENTER
FLOW
ENTER
TEMP
”>4<”
>4<
TEMP
23°C
Required ventilation
step: 1-4.
OFF allows the system
to be shut down via an
external switch.
ENTER
”23" °C
SELECT
”VENTILAT”
ENTER
SELECT
ENTER
”EXT OFFS”
SELECT
”EXHAUST”
ENTER
SELECT
”INLET”
ENTER
Choose the
afterrunning and
displacement of
the setpunkt, for
externak heating.
See SELECT
EXTEND
Time and speed must
be set in the same
way as described
under SELECT
EXTEND.
SELECT
”EXTEND”
SELECT
”OFF”
Possibility to run at
a higher or lower
rate. High priority.
ENTER
Switches user option
off.
Required room temperature
(5-30°C).
T15 is the temperature sensor to
be used to control the system.
Figure 9: The ”User select” menu
May be subject to change
page 15 af 30
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 a 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
06-05-30
TI 12.10
ENTER YEAR
ENTER YEAR
”06"
ENTER
06
ENTER MONTH
”05"
ENTER
05
ENTER DAY
”30"
ENTER
30
ENTER
12
ENTER HOUR
”12"
ENTER MINUTE
”10"
ENTER
10
MONTH
DAY
Is only shown the first
time after setting up
the time function.
WEEK
DAY
2
HOUR
MINUTE
Seconds are being reset
when minutes are adjusted
Figure 10: Setting of clock
May be subject to change
page 16 af 30
Week programme
The unit is equipped with 3 standardized week programmes.
Anlægget er fra fabrikken indstillet til program 1.
In addition to these programmes it is possible to programme 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
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.
WEEK
PROGRAM
ENTER SELECT
OFF
System operation in
accordance with main
menu settings
SELECT
”CLEAR”
ENTER
SELECT
”PROG 3"
ENTER
SELECT
”PROG 2"
ENTER
SELECT
”PROG 1"
ENTER SELECT
PROG 1
ENTER
ENTER SELECT
”OFF”
MO1 06.00
>3 < 21°C
ENTER
MO2 08.00
>1 < 17°C
ENTER
Here it is possible to delete all
user made programmes. The unit
will continue in AUTO mode
without any week programme.
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.
MO 3 AUS
>1 < 17°C
MO4-6
MO TU
COPY
TU1 06.00
>3 < 21°C
TU2-6
ENTER MO TU
”COPY”
ENTER TU
WE
COPY
ENTER
Once settings have been made for
Monday , the values can be copied
to any other day the same settings
are to apply using in the copy
function.
Figure 11: The ”Week program” menu
May be subject to change
page 17 af 30
Factory settings for the 3 weekly programs:
Program 1 is suitable for the working family
Program 2 is suitable for the non-working family
Program 3 is suitable for offices
Program
Program 1
Program 2
Program 3
Week day
Monday Friday
Saturday Sunday
Monday Sunday
Monday Friday
Function
1
2
3
4
1
2
1
2
1
2
Time
6.00
8.00
15.00
22.00
8.00
23.00
8.00
23.00
7.00
16.00
Ventilation
3
1
3
1
3
1
3
1
3
OFF
Temperature
21
21
21
21
21
21
21
21
21
21
Weekly program settings
Weekday
Program step.
6 program steps are
available each day.
MO 1 08.00
>1< 17°C
Fan speed.
May be subject to change
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.
page 18 af 30
Hot water
The ”Hot water” menu shows the data for production of hot water.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
The electrical heating supplement
temperature T11 is set between 5 °C to
10 °C lower than the primary heating
temperature delivered by the
compressor. It is possible to set the
T11 temperature between 5 °C and 85
°C.
HOTWATER
ENTER EL SUP
T11 30°C
ENTER EL SUP
T11 ”30°C”
ENTER
COMP
T12 55°C
ENTER
ENTER
COMP MAX
T12 65°C
ENTER COMP MAX
T12 ”65°C”
PRIORITY
WATER
ENTER PRIORITY
”WATER”
COMP
T12 ”55°C”
There can be chosen
between priority of water or
inlet.
The hotwater is
primarily heated by the
heat pump which
delivers the energy to
the condensator in the
water. If you have a
very large demand for
hot water the electrical
heating element can be
engaged in order to
reduce time for heating
the water.
T12 can be set between
5 °C and 60 °C. it is
recommended to set
T12 between 45 °C and
55 °C
For security reasons
the compressor stops
when the water
temperature reaches
the chosen
temperature in order to
avoid overheating.
T12 can be set
between 5 °C and 80
°C.
Figure 12: The ”Hotwater” menu
May be subject to change
page 19 af 30
Cooling
The menu COOLING can only be accessed in the control panel when the system is a VP 18 Cooling
The ”Cooling” menu enables you to chose at which temperature cooling should be activated according to the room temperature.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
The value can be set to:
OFF, +1, +2, +3,+5,+7,+10.
It is recommended that the
value is set to +5.
COOLING
ENTER TEMP
SET
+3
VENTILAT
HIGH OFF
ENTER TEMP
SET ”3+”
ENTER
Here it is possible to chose
high ventilation step when
cooling.
The value can be set to:
OFF, 2, 3, 4.
Figure 13: The ”Cooling” menu
Example:
Chosen room temperature in the main menu
Cooling point
Start compressor cooling operation mode
May be subject to change
=
=
=
21°C
5°C
26°C
page 20 af 30
Air exchange
In the ”Air exchange” menu it is possible to chose between 3 different types of ventilation depending on your individual demand.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
In COMFORT W mode the
inlet fan stops as long as
there is a need for heating
water. If the unit is in cooling
mode the inlet fan will not
stop.
ENTER
AIR EXCH
”COMFORT W”
AIR EXCH
”COMFORT”
AIR
EXCHANGE
ENTER AIR EXCH
ENERGY
Start temperature for
the curve regulation of
the inlet air volume.
The value is preset to
38 °C and can be set
between 28 °C and 43
°C.
CURVE
MIN 38°C
CURVE
MAX 35°C
COMP
The compressor starts
in heating mode at low
outdoor temperature.
The value can be set
to OFF or from + 15 °C
to – 15 °C.
MIN
OFF
WINTER
LOW
OFF
ENTER
ENTER AIR EXCH
”ENERGY”
ENTER
ENTER
ENTER
CURVE
MIN ”38°C”
In COMFORT
mode the air
exchange is
balanced. This
ensures the rigth
level of ventilation
chosen by the user.
ENERGY mode secures an energy
optimized operation by adjusting the inlet
air volume according to the setting of the
curve value.
When using curve regulation the inlet air
will always be warm. When regulating the
inlet airflow down when the heat recovery
from the heat pump is not adequate it is
possible to keep the inlet air warm. The
inlet fan can stop if necessary especially
when a large quantity of hot water is
needed.
Possibility of low ventilation
step at low outdoor
temperatures.
The value can be set to OFF,
1, 2, 3.
Figure 14: The ”Air exchange” menu
May be subject to change
page 21 af 30
Air filter
In the ”Air filter” menu it is possible to chose the interval of the filter guard.
The interval is preset to a 90 day interval.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
AIR
FILTER
ENTER ALARM
90 DAYS
ALARM
”360 DAYS”
ENTER
ALARM
”180 DAYS”
ENTER
ENTER ALARM
”90 DAYS”
ENTER
ALARM
”30 DAYS”
ENTER
ALARM
”OFF”
ENTER
Figure 15: The ”Air filter” menu
May be subject to change
page 22 af 30
Temp. control
In the ”Temp. control” menu it is possible to set the highest and lowest inlet temperature.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
Lowest inlet temperature
in the summer.
TEMP.
CONTROL
ENTER SUMMER
”MIN 14°C”
ENTER
WINTER
”MIN 16°C”
ENTER
SUMMER
”12°C”
ENTER
Lowest inlet temperature in
the winter.
Lowest out-door temperature in
order for the unit to operate
according to summer temperatures.
Figure 16: The ”Temp. control” menu
At outdoor temperatures lower than set value (measured at T1) cooling via compressor is blocked.
May be subject to change
page 23 af 30
Setting of language
In this menu you set which language to be used in the CTS 602 panel.
” ” 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 qp
to move up or down in a menu or to adjust an
activated menu
- press ENTERto activate a menu
- press ENTERto confirm a menu
- press OFF
to turn off the unit
- press ON
to turn the unit on
LANGUAGE
”CZECH”
LANGUAGE
DANISH
ENTER
ENTER
LANGUAGE
”SUOMI”
ENTER
LANGUAGE
”NORWEG.”
ENTER
LANGUAGE
”DANISH”
ENTER
LANGUAGE
”SWEDISH”
ENTER
LANGUAGE
”FRENCH”
ENTER
LANGUAGE
”GERMAN”
ENTER
LANGUAGE
”ENGLISH”
ENTER
Figure 17: The ”Language” menu
May be subject to change
page 24 af 30
Faultfinding
If there should be any operating errors please inspect the following before contacting your service
mechanic:
Check if the alarm diode on the CTS 602 panel is flashing. If this is the case please read the alarm
in the “Show alarms” menu and correct the fault. If necessary please contact your local service
mechanic. Alarm codes and directions for correcting alarms can be found in the CTS 602 directions.
-
VP18 is functioning but with reduced output.
Please inspect if the unit is supplied with enough air. Check the filters and control that the
air valves are sufficiently opened. In 98% of the cases the fault derives from obstructed filters. The ventilators can be set on a higher speed if necessary. Any draught controls to the
outside should be closed at outside temperatures below 6°C.
-
VP18 is functioning but there is no hot water.
Please check if the hot water tank is emptied. If the unit is supplied with hot-water circulation and the pipes are not insulated there can be a significant heat-loss which can cause a
reduced output of the VP18.
Is the water temperature adjusted correctly in the CTS 602 control? (T12). The temperature
should normally bet set to 45–55°C. How to adjust the temperature please see the CTS 602
directions (delivered together with the VP18).
Is the air supply too cold or is the air flow too little? Please check the filters and valves and
if the insulation of the ducts is sufficient and dense.
-
VP18 is not functioning.
Please inspect the fuse. Check if the safety thermostat for hot water has disengaged the
electricity. If this is the case please press the button and the thermostat will connect when
the water temperature has dropped 10–15°C. if the thermostat disengages the electricity
several times please contact your service mechanic.
May be subject to change
page 25 af 30
Maintenance
At least every 3 months:
-
The filters should be cleaned and renewed when needed. Usually the filters need to be renewed once a year.
The filter guard in the CTS 602 control can be used in order to make sure that the filters are
checked. Please see CTS 602 directions for further information. (delivered together with the
VP18).
Changing filters :
May be subject to change
1. loosen the screws
2. remove the filter door
3. pull the filter frames out to remove/clean the filters.
page 26 af 30
Once a year:
-
The sacrificial anode must be checked to ensure that monitoring of the anode is intact.
(No.24)
o The wire marked with “yellow/green” is dismantled at the anode. This produces the
“ALARM 70” (LED flashing)
o The wire marked with “yellow/green” is reassembled at the anode. “ALARM 70”
(LED not flashing)
The hot-water tank can corrode if the anode is left unchanged.
-
The intake should be inspected and any uncleanness should be removed.
The evaporator should be inspected and cleaned.
It should be checked that the condensate has free passage through the water seal and the
condensation drain.
The safety switch for the hot water tank should be controlled.
It is recommended to take out a subscription for service.
-
May be subject to change
page 27 af 30
Replace the fan
May be subject to change
page 28 af 30
Energy saving
-
Use the setting ”Energy” in the ”Air exchange” menu in the CTS 602 control. Please see
CTS 602 directions for further information. (delivered together with the VP18).
-
Keep the hot-water at a low temperature. Try with 45°C.
-
The auxiliary heating element should be cut off and only be used at very large hot-water
demands. Please see CTS 602 directions
-
The ventilation speed should not be set higher than necessary.
-
Avoid hot-water circulation.
-
Spread out the bathing times as the VP18 Combi needs 6-7 hours to heat the 180L water.
-
Insulate the ducting as prescribed.
-
Do not cool during winter time.
May be subject to change
page 29 af 30
Accessories
Filters
Type
Filter (1pair = 2pcs.)
Pollen filter F7 to insert in VP18 M2 unit
Accessories/spare parts
Type
Hygrostat
CTS 602, control PCB
CTS 602, control panel complete
CTS 602, white control panel enclosure
Heating cable for condense outlet (frost protection)
Sacrificial anode 5/4” MG ø33x450mm
May be subject to change
Qty.
1
1
Nilan itemnr.
39543
39542
Qty.
1
1
1
1
Nilan itemnr.
3637
229933
2398
2398HX
2172
19203
1
page 30 af 30