nilan Compact P CTS700 User manual

We reserve the right to make changes
1
CTS700 BY NILAN
OPERATING INSTRUCTIONS
Compact P
Compact P Polar
Version: 2.00, 24-02-2016
Original operating Instructions

We reserve the right to make changes
2
Table of Contents
Introduction ..................................................................................................................................................................................................... 5
Unit types ..................................................................................................................................................................................................... 5
Temperature sensor overview......................................................................................................................................................................... 6
Control panel ..................................................................................................................................................................................................... 7
Display ..................................................................................................................................................................................................... 8
Menu structure................................................................................................................................................................................................... 9
Fan
Fan speed - Fan level........................................................................................................................................................................................ 10
Fan speed - Humidity control ......................................................................................................................................................................... 10
Fan speed - By cooling function ..................................................................................................................................................................... 10
Fan speed - at low outdoor temperature .....................................................................................................................................................11
Fan speed - at CO2control (Accessories)......................................................................................................................................................11
Room temperature - Desired room temperature ...................................................................................................................................... 12
Room temperature - Air intake temperature .............................................................................................................................................12
Filter - Change filter settings ......................................................................................................................................................................... 13
Filter - Filter monitoring..................................................................................................................................................................................13
Standby - Ventilation at pause....................................................................................................................................................................... 14
Standby - System state................................................................................................................................................................................... 14
Standby - Operating modes............................................................................................................................................................................14
Settings - Summer/winter Operation...........................................................................................................................................................15
Settings - Temperature sensor .....................................................................................................................................................................15
Settings - Temperature control .....................................................................................................................................................................16
Settings - De-icing ............................................................................................................................................................................................ 17
Settings - Frost protection .............................................................................................................................................................................17
Settings - Adjustment ventilators.................................................................................................................................................................18
Settings - Heating coil......................................................................................................................................................................................19
Settings - External heat supply...................................................................................................................................................................... 19
Settings - Lock signal type..............................................................................................................................................................................20
Settings - External fire automation .............................................................................................................................................................. 20
Settings - Compressor.....................................................................................................................................................................................20
Domestic hot water
Temperature - Domestic hot water............................................................................................................................................................... 21
Temperature - Electrical supplementary Domestic hot water ................................................................................................................21
Temperature - Min./max temperature Domestic hot water....................................................................................................................21
Pause - Domestic hot water............................................................................................................................................................................22
Legionella combat system - Start Legionella combat system now.........................................................................................................22
Legionella combat system - Settings ...........................................................................................................................................................22

We reserve the right to make changes
3
Table of Contents
General Settings
Close down the system....................................................................................................................................................................................23
Event log (warning/alarm)..............................................................................................................................................................................23
Devices data - Compact P (Fan and domestic hot water)..........................................................................................................................24
Weekly programmes .......................................................................................................................................................................................25
User selection programmes ...........................................................................................................................................................................26
Display settings ................................................................................................................................................................................................ 26
User level settings............................................................................................................................................................................................27
Service - Superuser validation.......................................................................................................................................................................27
Service - User On/Off capability....................................................................................................................................................................27
Service - Languages.........................................................................................................................................................................................27
Service - Product configured .........................................................................................................................................................................28
Service - Software............................................................................................................................................................................................28
Service - Network settings............................................................................................................................................................................. 29
Service - System settings...............................................................................................................................................................................29
Alarm list ...................................................................................................................................................................................................30

We reserve the right to make changes
4

We reserve the right to make changes
5
Introduction
Check that the following have been supplied with the product:
• Installation
• User’s Manual
Guides can be downloaded from Nilan's website:http://www.nilan.dk/en-gb/frontpage/download
If, after reading the guide, you have any other questions concerning the installation of the product, please contact your nearest
Nilan dealer. Go to www.nilan.dk/en-gb/frontpage/dealers/europe
The system is controlled by using the multifunctional CTS 700 control panel and the purpose of these instructions is to explain
the menus and options available when using CTS 700.
As these instructions are designed to apply to different models, you may find descriptions of functions and facilities that are not
available on your system.
The system is delivered ready to run.
The factory settings are intended to meet most users’ needs and it should therefore not be necessary to change any settings
other than the main menu settings.
Unit types
The control panel is prepared for use with the following types of units.
Type
Heat recovery Domestic hot water Optional solar heating connection Optional supplementary heating Passive cooling via bypass damper or cold recovery Active cooling via compressor Pre-heating element (frost protection) De-icing
Compact P
Compact P Cool
Compact P Cool Solar
Compact P Polar
Compact P Polar Cool
Compact P Polar Cool Solar

We reserve the right to make changes
6
Temperature sensor overview
Compact P:
T1: Outdoor air
T2: Air intake
T3: Extracted air
T4: Output
T5: Condenser
T6: Evaporator
T7: Intake air (after heating element)
T8: Outdoor air (before preheating element)
T9: On water heating coil
T11: Top of tank
T12: Tank base
TPanel: CTS 700 control panel

We reserve the right to make changes
7
Control panel
Current operating conditions can be read from the control panel,
and new operating parameters can be set.
Navigation is by using the wheel and the return button under the
display.
Important! Do not press the wheel too hard when you turn it,
to ensure optimum functioning.
Navigation
Turn wheel to right/left
• Change main menu
• Navigate up/down in submenu
• Change settings values
Press ”OK” to enter a menu
• To approve a setting
• Press ”Arrow back” to return to the menu
• To leave a setting without approving a change
There is an USB plug at the base of the control panel.
This can e.g. be used for future software updates, or for data
logging.

We reserve the right to make changes
8
Display
Main menu items
Display warning/alarm
AIR heat pump
Clock
Outdoor temperature
Indoor temperature
Solar panel temperature
Fan speed
Temperature of hot water tank
Warning
Alarm
GEO

We reserve the right to make changes
9
Menu structure
The menu structure is designed to make it easy to navigate and find the desired settings.
When switching from main menus on the initial screen, the icon you can select in the main menu is enlarged. To select, press ”OK”.
Menu structure
Home
Information
Settings
Standby
Ventilator
Temperature
Display current main menu
Submenu
Help text
Current setting
or operation
Change setting
The menu is subdivided into four user levels:
User: User level for ordinary user.
Superuser: User level for the user who wishes to
change settings and make a weekly
schedule (if any).
Installer: User level with authorised installer’s
rights. (Password is required)
Administrator: Accessible only to Nilan factory
installers. (Password is required)

We reserve the right to make changes
10
Fan
UserSuperuser
Fan speed - Fan level
It is possible to turn the ventilation up and down as needed.
Ventilation levels are set in the Fan menu:
• Fan The ventilation can be set between 20 and 100%.
NB! Remember at what % the system runs basic ventilation.
Fan speed - Humidity control
As standard, Compact P has intelligent humidity control, to ensure an optimum humidity level at all times.
Humidity control is set in the Fan menu:
• Low RH setpoint (%) Set at which humidity level low ventilation is to be initiated.
Adjustable between 15 and 45% (factory setting: 30%)
• Low speed at low RH (%) You can set the fan speed at low air humidity.
Adjustable between 20 and 80% (factory setting: 25%).
• High speed at high RH You can set the fan speed at high air humidity.
Adjustable between 30 and 100% (factory setting: 75 %).
The high humidity function runs for minimum 15 minutes.
• Average Monthly RH (%) States the average humidity, RH (%) measured over the last 24 hours.
It is possible to test the high humidity function by changing the relative humidity.
Fan speed - By cooling function
Compact P can cool with the help of a bypass function, cooling energy recovery and compressor.
Increasing the ventilation increases the cooling effect.
Cooling function is set in the Fan menu:
• High fan speed enabled High fan speed during cooling can be switched ON and OFF
(factory setting: Off).
• Fan speed high (%) You can set the fan speed during passive cooling.
Adjustable between 20 and 100 (factory setting: 80%).

We reserve the right to make changes
11
Fan
Superuser
Fan speed - at low outdoor temperature
Longer periods of persistent frost will give low humidity in the home. This can be prevented by lowering the ventila-
tion when the outdoor temperature is low.
Low outdoor temperature is set in the Fan menu:
• Low outdoor temp. Low fan speed function at low outdoor temperature can be switched ON and OFF
(factory setting: off).
• Low outdoor temp. You can set at which outdoor temperature low fan speed should start
(factory setting: 0°C).
• Low out-temp. speed (%) You can set the fan speed at low outdoor temperature
(factory setting: 25%).
Fan speed - at CO2control (Accessories)
It is possible to control the ventilation according to the CO2level, if a CO2sensor is installed.
CO2control is overridden by: Humidity control, Low outdoor temperature and De-icing.
CO2control is set in the Fan menu:
• Min CO2 level (ppm) This determines at which CO2level control is to start
(factory setting: 600 ppm).
• Min CO2 fan speed (%) Here you can set the fan speed at the start of the CO2regulation
(it is recommended to set the rate for basic ventilation)
(factory setting: 25 %).
• Max CO2 level (ppm) This determines at which CO2level ventilation should be highest
(factory setting: 1260).
• Max CO2 fan speed (%) Here you set the fan speed at high CO2level
(factory setting: 100%).

We reserve the right to make changes
12
Fan
UserSuperuser
Room temperature - Desired room temperature
It is possible to set the desired air intake temperature for the ventilation system.
The desired room temperature is set in the Temperature menu:
• Air (°C) The temperature can be set between 5 and 50°C
(Recommendation: 22°C).
Room temperature - Air intake temperature
It is possible to set the minimum and maximum temperatures of the supply air.
Minimum and maximum temperatures are set in the Temperature menu:
• CP/Minimum winter T7 (°C) States the lowest permitted air intake temperature when the system is operat-
ing in winter mode
(factory setting: 16°C).
• CP/Minimum summer T7 (°C) States the lowest permitted air intake temperature when the system is operat-
ing in summer mode
(factory setting: 5°C).
• CP/Maximum T7 (°C) Enter the desired maximum air intake temperature
(factory setting: 50°C).

We reserve the right to make changes
13
Fan
UserInstaller
Filter - Change filter settings
The filters' primary purpose is to protect the ventilation aggregate's fans, heat exchangers and other components from
the soiling in the air. It is therefore very important to change the filter when necessary, to ensure your system a long
lifetime.
Air intake and extracted air filters are adjusted separately because if you choose an F7 Pollen filter, the lifetime of this
filter is longer than for a standard G4 filter, and it therefore does not have to be replaced so often.
Filter settings are set in the Settings menu:
• Supply filter/Days from filter change Indicates how many days have passed since the last change of filter.
•Supply filter/Days to filter change Indicates the number of days that must elapse between switching filter.
Recommendation: Standard G4 filter 90 days
Pollen filter F7 180 days
• Supply filter/Supply SW filter reset After changing the filter, Click on ”OK” in ”Reset air intake filter”.
• Extract filter/Days from filter change Indicates how many days have passed since the last change of filter.
•Extract filter/Days to filter change Indicates the number of days that must elapse between switching filter.
Recommendation: Standard G4 filter 90 days
• Extract filter/Supply SW filter reset After changing the filter Click on ”OK” in ”Reset air intake filter”.
Filter - Filter monitoring
As standard, filter monitoring is set as time-controlled (Timer), but can also be set for pressure-controlled monitoring, if
required.
Filter monitoring is set in the Settings menu:
• Supply filter/Fresh air filter Set which filter monitoring is required
• Hours: Counts the number of days (factory setting: 90 days)
• Pressure: Pressure-controlled filter monitoring (accessory)
• Free:
• Digit:
• None: No filter monitoring is required
• Air extract filter/Air extract filter Set which filter monitoring is required
• Hours: Counts the number of days (factory setting: 90 days)
• Pressure: Pressure-controlled filter monitoring (accessory)
• Free:
• Digit:
• None: No filter monitoring is required

We reserve the right to make changes
14
Fan
UserSuperuser
Standby - Ventilation at pause
It can be a good idea to set the ventilation at pause when you on a summer day, for instance, have all the windows and
doors open. In this period, hot water will be produced via the electrical supplementary.
Pause ventilation is set in the Standby menu:
• CP/Pause ventilation Here the ventilation is set at pause.
Off: Ventilation ON
On: Ventilation is shut down until next change in the weekly schedule.
(The ventilation starts automatically at the next change in the weekly plan if the
weekly schedule is created.)
Standby - System state
It is possible to read how the ventilation is running.
System state is read in the Information menu:
• CP/System state Display system operating mode.
Auto: System operation - normal settings
User: System operation - special settings
Inact: System is shut down
Standby - Operating modes
You can change system settings to run the system in different operating modes.
Operating modes are set in the Standby menu:
• CP/Automatic – ON The system is running according to the pre-defined settings.
• CP/Heating Manual Operate – ON: The system is running (heating only)
• CP/Cooling Manual Operate – ON: The system is running (cooling only)
NB! Only one of the above options may be active.

We reserve the right to make changes
15
Fan
Installer
Settings - Summer/winter Operation
The shift between summer or winter mode can be changed.
Summer/winter Operation is set in the Temperature menu:
• Summer/winter T (°C) You can set the temperature for the switch between winter and summer modes
(factory setting: 12°C).
• Sum./wint. T offset (°C) Offset temperature to switch between winter and summer modes
(factory setting: 2°C).
Example:
14°C
12°C
10°C
Setpoint for summer/winter operation of 12°C with an offset of 2°C means:
Switches to summer operation at an outdoor temperature of ›14°C and to winter operation at ‹ 10°C.
Settings - Temperature sensor
Temperature sensor is set in the Temperature menu:
• CP/T1 (°C) Outdoor temperature after pre-heating element
• CP/T2 (°C) Air intake temperature before pre-heating element
• CP/T3 (°C) Room temperature (Extract air temperature)
• CP/T4 (°C) Discharge air temperature after counterflow heat exchanger
• CP/T5 (°C) Condenser temperature
• CP/T6 (°C) Evaporator temperature
• CP/T7 (°C) Air intake temperature after heating coil
• CP/T9 (°C) Heating coil temperature
• TPanel (°C) Room temperature (control panel)
See the temperature sensors' positions on the aggregate in the overview on page 6.
Offset 2°C
Offset 2°C

We reserve the right to make changes
16
Fan
Installer
Settings - Temperature control
For optimum operation, there are various temperature control settings, which can be adjusted.
Temperature control is set in the Temperature menu:
• CP/Master sensor You can select one of two sensors:
• T3: Temperature sensor – extracted air
• TPanel: Temperature sensor in the control panel
(factory setting: T3)
• CP/Regulate deadband (°C) Enter regulation neutral zone for temperature regulation
(factory setting: 1°C)
• CP/Bypass damper offs.(°C) Set regulation offset value for bypass damper
(factory setting: 0°C)
• CP/Cooling offset (°C) Offset temperature for cooling mode
(factory setting: 2°C)
Example:
20°C
• Night setback temp (°C) Increases setting of regulating neutral zone for heating operation, when the
system switches to night-time drop.
Example: When set at 3°C, heating will not start until 15°C.
Night lowering can be activated via the week programme or user selection.
• CP/EHD/BAH setp. offset (°C) Enter regulation offset for the EHD/BAH damper.
EHD: Switches between outdoor air through roof cowl or ground pipe.
BAH: Leads outdoor air through or past the heat exchanger
-connected ground pipes.
• CP/Compensation balance (%) Enter room vs. outdoor air compensation in accordance with predetermined graphs.
0% = only room compensation
100% = only outdoor air compensation
Regulation neutral zone 2°C
Regulation neutral zone 2°C
Offset for bypass 1°C
Offset for cooling 3°C
Room temp < 18°C starts active heating or heating coil (if any).
When the room temperature is > 25°C active cooling commences via the heat pump.
Room temp > 23°C open bypass

We reserve the right to make changes
17
Fan
Installer
Settings - De-icing
During longer periods of persistent frost, ice may form in the heat exchanger and/or in the heat pump. When this
happens, the system has an automatic de-icing function, to thaw the ice, so that the system can run properly again.
The de-icing function is set in the Settings menu:
• CP/De-icing/Out-temp to de-ice (°C) Indicates at which outdoor temperature the frost protection system
must begin to monitor the unit (factory setting 1°C).
• CP/De-icing/De-icing max. time (min) Maximum interval for de-icing the counterflow heat exchanger
(factory setting: 25 min).
• CP/De-icing/De-icing pause Minimum de-icing interval
(factory setting: 30 min).
• CP/De-icing/De-ice fan speed (%) Extract air ventilator speed during de-icing
(factory setting: 20%).
• CP/De-icing/De-ice fan mode Indicates how the supply air fan must operate during de-icing.
From: Fresh air ventilator OFF
Released: Fresh air ventilator ON (normal setting)
Previous: Air intake fan runs at the same setting as extract air fan.
(Extract air fan runs according to the set volume during de-icing.)
• CP/De-icing/Evaporat.de-iceTime (min) Maximum interval for de-icing the evaporator
(factory setting: 5 min).
• CP/De-icing/T6 hold time (min) (factory setting: 1 min).
• CP/De-icing/Evap. defrost by T6 (factory setting: On).
• CP/De-icing/T6 defrost start T(°C) (factory setting: -2°C).
• CP/De-icing/T6 defrost start T(°C) (factory setting: 6°C).
Settings - Frost protection
Icing-up of heat exchangers and heat pumps can be avoided by installing a preheating element for frost protection.
The Compact P Polar version has a built-in frost protection preheating element.
Pre-heating in the Polar version is activated in the Settings menu:
• CP/Preheater settings/Polar functionality A modulating pre-heating element pulses heat when extracted air
< 2°C (T4).
On: Pre-heating element is enabled
Off: Pre-heating element is disabled
(factory setting: Enabled)

We reserve the right to make changes
18
Fan
Installer
Settings - Adjustment ventilators
The ventilators can be adjusted in two ways: According to basic ventilation or according to min./max. air volume.
Adjustment according to basic ventilation is in the Fan menu:
• Fan speed offset (%) Ventilation is set at the air volume for basic ventilation.
The fans are then adjusted to run the same air volume
by setting their offset.
The extract air fan's speed is fixed.
The air intake fan can be adjusted by stating an offset for it.
Offset can be set between -25 and 25.
Adjustment for min./max. air volume is in the Settings menu:
• CP/VFD config Fresh air ventilator setting at 20% air.
The fans are regulated so that they run the same amount of air
as follows:
• CP/VFD config/Min. voltage VFD 1 Settings of min. control signal for fresh air ventilation.
• CP/VFD config/Min. voltage VFD 2 Settings of min. control signal for extract air ventilation.
Then set the ventilation to 100%.
The fans are regulated so that they run the same amount of air
as follows:
• CP/VFD config/Max. voltage VFD 1 Settings of max. control signal for fresh air ventilation.
• CP/VFD config/Max. voltage VFD 2 Settings of max. control signal for extract air ventilation.

We reserve the right to make changes
19
Fan
Installer
Settings - Heating coil
If a heating coil is connected, certain settings must be made.
The heating coil is set in the Settings menu:
• CP/Reheater type Indicates which heating coil is connected to the ventilation.
None: No heating coil (factory setting)
Water: Water heating coil
Analogue: Electric heating coil
Settings - External heat supply
CTS 700 controller can control an external heating system.
External heat supply is set in the Settings menu:
• CP/AllowHeat deadband (°C) Enter regulation neutral zone for temperature regulation
(factory setting: 1°C).
Example:
Permits the external heating system to run when:
Room temperature (T3) < Temp. setting +/- ”Ext. heating neutral zone” – 1°C
Blocks external heating system when:
Room temperature (T3) > Temp. setting +/- ”Ext. heating neutral zone”
Ext. heating neutral zone - 3°C
-1°C
20°C
Indoor temperature < 17°C external heating released Indoor temperature > 18°C external heating blocked

We reserve the right to make changes
20
Settings - Lock signal type
Blocking function for heating or cooling
Setting of lock signal type is in the Settings menu:
• CP/Lock signal type Enter the issues to be blocked.
None: No blockage
Heat: Heating input blocked
Cool: Cooling input blocked
Settings - External fire automation
Compact P can be connected to external fire automation.
Setting of External fire automation is in the Settings menu:
• CP/Fire alarm auto reset Allows external fire automation system to control the unit.
This function allows automatic restart
Off: Not activated
On: Function activated
Settings - Compressor
The settings for the compressor can be read by the user, but can only be edited with administrator privileges.
Compressor setting can be read in the Settings menu:
• CP/Compressor/Comp. start-start (min) States the interval between compressor starts
(factory setting: 3 min).
• CP/Compressor/Comp. min off time (min) States the interval between compressor start and stop
(factory setting: 5 min).
Fan
Installer