nilan Compact S CTS 602 User manual

VP 18 EK
Version: 10.00, 13-04-2015
Software-version: 2.30
User manual
CTS 602 by Nilan

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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 1 and 2................................................................................................................... 14
Setting of clock.......................................................................................................................... 15
Week programme ..................................................................................................................... 16
Factory settings for the 3 weekly programs:.............................................................................. 17
Central heating.......................................................................................................................... 18
Cooling ..................................................................................................................................... 23
Air exchange............................................................................................................................. 24
Air filter ..................................................................................................................................... 25
Temp. control............................................................................................................................ 26
Setting of language................................................................................................................... 27
Faultfinding................................................................................................................................... 28
Maintenance................................................................................................................................. 29
Energy saving............................................................................................................................... 32
Accessories .................................................................................................................................. 33
Figure table
Figure 1: Types of units .................................................................................................................. 4
Figure 2: Diagram illustrating sensor location for VP 18 EK............................................................ 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 ................................................................................................. 14
Figure 10: Setting of clock ............................................................................................................ 15
Figure 11: The ”Week program” menu .......................................................................................... 16
Figure 12: The "Central heating" menu......................................................................................... 18
Figure 13: The ”Hotwater” menu................................................................................................... 22
Figure 14: The ”Cooling” menu ..................................................................................................... 23
Figure 15: The ”Air exchange” menu ............................................................................................ 24
Figure 16: The ”Air filter” menu ..................................................................................................... 25
Figure 17: The ”Temp. control” menu............................................................................................ 26
Figure 18: The ”Language” menu ................................................................................................. 27

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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.
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.

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Types of units
The control is made for the following ventilation units.
Nr.
Type
Heated air
Frost-protected heating coil
Option for cooling air
High pressure protection
Compressor
De-icing
Water for domestic use
1
VP18 M2 EK
x
x
x
x
x
x
Figure 1: Types of units

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Review of the thermometer sensors
Figure 2: Diagram illustrating sensor location for VP 18 EK
Explanation for figure 2:
T1:
is the thermometer sensor for the fresh air and should be placed at the north side of the
building.
T5:
shows the temperature of the condenser.
T6:
shows the temperature of the evaporator
T11:
is the temperature at the top of the hot water tank
T12:
is the temperature at the bottom of the hot water tank
T14:
is the temperature in the boiler
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 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 por 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.

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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.
You can choose between a balanced air renewal , curve controlled air renewal
and air renewal controlled by the sanitary water need.
Main menu: displays operating status.
Press ESC to return to the main menu.
Operating mode (heat, auto, cool), temperatures, fan speed, type of unit and
software version.
Alarm display and reset.
Alarm log containing the latest 16 alarms.
SHOW
ALARMS
SHOW
AUTO W/1
>2< 19°C
USER 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.
Weekly program can be set to ON or OFF . When the program is active , 1, 2
or 3 is displayed in the main menu.
SELECT
WEEK
PROGRAM
COOLING Allows for you to set the injection temperature of cooling via compressor.
AIR
EXCHANGE
AIR
FILTER
TEMP.
CONTROL
LANGUAGE
ENGLISH
The controls are factory set to activate a filter alarm every 90 days. The alarm
is reset in the VIEW ALARMS menu.
Setting the minimum temperature required in order for the bypass valve to
close. Maximum inlet air temperature can be set for a heating element.
Select the required language: English, German, French, Swedish,
Danish, Norwegian or Finnish.
HEATING Displays the data of the sanitary water production.
SURFACE
DATA
USER Options: exhaust, inlet, ventilation, OFF. The function selected is activated via a
switch or pressure.
SELECT
CENTRAL Visning af data for centralvarmen/el-kedlen.
HEATING
Figure 4: Menu headlines

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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 *
>2< 19°C
Ventilation step
* : 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
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 compres-
sor.
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.

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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.
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
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. Week
programme is possible.
Heating according to the
desired room
temperature.
Week programme is
NOT optional.
Cooling according to the
desired room
temperature.
Week programme is
NOT optional.
The indicated ventilation
step applies for the
exhaust.
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 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.
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. Only active
alarms can be reset. ALARM0
indicates that all alarms are reset.
ENTERENTER
00-00-00
TI 00:00
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 contact
service.
09
C
OVERTEMP
One of the temperature sensors in
the unit is disconnected or defect.
Note the sensor and contact
service.
13
C
BOILING
Boiling protection of the hot water
Contact service

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Alarm
code
Categori
Text in
display
Description/ cause
How to remedy alarms
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
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 lightning.
The unit will keep on operating on
standard programming.
Reset alarm
Re-programme the week
programme.
Contact service if the unit
does not operate as be-
fore. 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.
23
I
T WATER
Heating of water for domestic use is
not possible
Contact service

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Show data
The actual operation data can be read in the ”Show data” menu.
See review of thermometer sensors at page 5.
SHOW
DATA
WATER B
T12 40°C
STATUS
HEATING
PANEL
T15 20°C
WATER T
T11 50°C
FRESH AIR
T1 20°C
Roomt emperature
at T15 (sensor in
CTS 602-panelet)
Software version in the
control
The location of the
thermometer
sensors are shown
on page 5
Software version in
the panel.
INLET
FLOW 2
SOFTWARE
1 2.21
EXHAUST
FLOW 2
COND
T5 25°C
SOFTWARE
2 1.00
ENTER
EVAP
T6 24°C
TYPE
VP 18c
INLET
T2 25°C
EXTERNAL
T10 20°C
ANODE
OK
Anode condition
OK, ERROR or SERVICE
Figure 8: The ”Show data” menu

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User select 1 and 2
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 selec-
tions 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
Time and speed must
be set in the same
way as described
under SELECT
EXTEND.
Required period in
which the selected
function is to remain
operative: stated in
hours and minutes.
Max 8 hours.
Switches user option
off.
Required ventilation
step: 1-4.
OFF allows the system
to be shut down via an
external switch.
TIME
FLOW
ENTER ENTER
TEMP
TIME 00:00
FLOW >4<
TEMP 23
ENTER
ENTER
ENTER
”00:00"
”OFF”
ENTER
ENTER
ENTER
°C
”>4<”
”23" °C
SELECT
SELECT
SELECT
SELECT
”EXTEND”
”INLET”
”EXHAUST”
SELECT
”EXTEND”
USER
SELECT
Required room temperature
(5-30°C).
T15 is the temperature sensor to
be used to control the system.
”EXT OFFS” ENTER
SELECT
.Choose the
afterrunning and
displacement of
the setpunkt, for
externak heating.
See SELECT
EXTEND
is an accessory and
via accessory pcb
the option is only possible
Option for an extra relay output
R8. R8
The temperature is added
or subtracted to/from the
set point shown in the main
menu.
”VENTILAT” ENTER
SELECT
Possibility to run at
a higher or lower
rate. High priority.
Figure 9: The ”User select” 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 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
Is only shown the first
time after setting up
the time function.
06-05-30
TI 12.10 YEAR 06 ENTERENTER YEAR ”06"
MONTH
”05"
Seconds are being reset
when minutes are adjusted
MONTH 05
DAY 30
WEEK
DAY 2
HOUR 12
MINUTE 10
DAY
”30"
HOUR
”12"
MINUTE
”10"
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
Figure 10: Setting of clock

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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
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.
System operation in
accordance with main
menu settings
”PROG 1"
MO1 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
MO4-6
MO3 AUS
>1 < 17°C
PROG 1
WEEK
PROGRAM SELECT
”OFF”
SELECT
SELECT
SELECT
SELECT 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.
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.
Figure 11: The ”Week program” menu

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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
Week day
Function
Time
Ventilation
Temperature
Program 1
Monday -
Friday
1
2
3
4
6.00
8.00
15.00
22.00
3
1
3
1
21
21
21
21
Saturday -
Sunday
1
2
8.00
23.00
3
1
21
21
Program 2
Monday -
Sunday
1
2
8.00
23.00
3
1
21
21
Program 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.
Weekday
Program step.
6 program steps are
available each day.
Fan speed.
Weekly program settings

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Central heating
Settings for boiler control are displayed in the CENTRAL HEATING menu. The values shown are
recommended values.
Options that flash are indicated by ” ”.
CENTRAL
HEATING MODE HEAT
MODE
”OFF”
MODE
”HEAT”
ENTER ENTER
ENTER
ENTER
SUPPLY
MIN 25°C
SUPPLY
MAX 40°C
ENTER
MODE
”DEMAND”
Can be set from 5 –40°C
CURVE 5
OFFSET
CUR 0°C
OFFSET
T15 0°C
DELAY
0 MIN
PUMP
ENERGY ENTER PUMP ”ENERGY”
PUMP
”CONTIN”
Can be set from 25 –85°C
Can be set from 0 –2°C
Can be set from 1 -10°C
Can be set from -15 -10°C
Can be set from 0 –30
minuttes
”DEMAND” will stop the EK-
module when there is a high
pressure alarm
Only avaiable when
MODE DEMAND has
been selected.
Figure 12: The "Central heating" menu

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Boiler function
Additional descriptions of the boiler function for the VP18 M2 EK CTS602.
Operating mode
There are three different operating modes:
Operating
mode
Boiler status
Tforward motion
determined by
Circulating
pump
Heat pump
Off
Off
None
Off, but with active
antiseize.
On, at outside
temperatures below
2°C
On, water for do-
mestic use and air
Heat
On
Curve, minus any
displacement of
xx C on
curve. Possibly
constant
flow, see curve
control.
On/off. Depends on
selected pump
operation/demand.
On, water for do-
mestic use and air
Demand
On/off depended
on Troom and T15
displacement
Curve, minus a
potential displace-
ment of xxC° of the
curve
On/off, depends on
chosen pump oper-
ation/ the needs
On, water for do-
mestic use and air
Min. flow temp.
This is where the forward motion minimum temperature is regulated. The adjustment oversteers a
potential lower temperature from the curve control.
The function can be relevant when using underfloor heating, if a minimum comfort temperature is
wanted.
Max. flow temp.
This is where the forward maximum temperature is regulated. The adjustment oversteers a poten-
tial higher temperature from the curve control.

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Curve control
The forward motion temperature is regulated automatically in accordance to a curve. See the dia-
gram below:
Outdoor
temperatur
Displace
Max.
temperature
Central heating
temperature
Curve control
Max.
temperature
Summer mode
The forward motion temperature is controlled as a function by the outdoor temperature so that the
forward motion temperature depends on the outdoor temperature. If the outdoor temperature is low
it will result in a higher forward motion temperature. Curve number 1 is calculated so that it suits
houses with a low heat and curve number 10 is suited houses with a heavy heat loss. Normally,
curve number 5 will be suitable. The curve function is only active before the defined minimum- and
maximum temperatures.
If a constant forward motion temperature is wanted it is possible. Just regulate forward motion min-
imum/maximum with a one degree difference, for example forward motion minimum = 49°C and
forward motion maximum = 50°C.
Offset curve
With this function it is possible to adjust the curves between 10 °C up and 5°C down with a step on
1°C.
Offset T15
This function is only used for demand-control. The adjusted value in this menu is the deviation un-
der the wanted room temperature that needs to be present before it is allowed to start the boiler. It
is possible to prioritize the air/air-heating pump instead of the boiler if a deviation of 1°C-5°C is
chosen