nilan CTS400 Operating instructions

USER AND INSTALLATION INSTRUCTIONS
Gateway LAN
CTS400/CTS602 BY NILAN
Version 1.10 - 01.03.2021
MB Gateway LAN GB

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Table of contents
General information
Product description .....................................................................................................................................................................................3
Nilan User App .......................................................................................................................................................................................3
Setup ..............................................................................................................................................................................................................3
Download Nilan User App ....................................................................................................................................................................3
Create user on the App .......................................................................................................................................................................4
Set up multiple users for the App ......................................................................................................................................................4
Add more units/Gateways to the App ..............................................................................................................................................5
User manual
Nilan User App ..............................................................................................................................................................................................6
Introduction ...........................................................................................................................................................................................6
Explanation of main screen items .....................................................................................................................................................6
Temperature ..........................................................................................................................................................................................7
Ventilation ..............................................................................................................................................................................................7
Domestic hot water ..............................................................................................................................................................................8
Air humidity ...........................................................................................................................................................................................9
CO2 settings ...........................................................................................................................................................................................9
Filter replacement ............................................................................................................................................................................. 10
Show data ............................................................................................................................................................................................ 10
Trend curve ......................................................................................................................................................................................... 10
Installation instructions
Gateway ..................................................................................................................................................................................................... 11
Connections overview Gateway ..................................................................................................................................................... 11
Electrical connection ......................................................................................................................................................................... 11
Connecting gateway to your Nilan unit ................................................................................................................................................ 12
General information .......................................................................................................................................................................... 12
LAN cable types: ................................................................................................................................................................................ 12
Connection to units with a CTS400 control system .................................................................................................................... 13
Connection to units with a CTS602 control system with 6-pole plug ....................................................................................... 14
Connection to units with a CTS602 control system with 8-pole plug ....................................................................................... 15
Connection to units with a CTS602 control system with RJ45 port .......................................................................................... 16
Connection to units with CTS602 control system - commercial ............................................................................................... 17
Connecting to the internet ............................................................................................................................................................... 18
Checking connections ....................................................................................................................................................................... 18

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General information
Product description
Nilan User App
This App can control those of Nilan’s ventilation units and heat pumps that have a CTS400 or a CTS602 control system. If the unit does
not include a Gateway, you will have to purchase one as an accessory. You connect the Gateway to the Modbus input of the unit. When
you enter settings from the App, it may take a few seconds before the changes are registered by the unit.
The communication from the App to the Gateway takes place via a secure cloud connection. This allows you to access the Nilan unit
from anywhere in the world as long as you have internet connection.
Setup
Download Nilan User App
You can download Nilan User App from Google Play or App Store. Before you can use the App, you will need a Nilan gateway. You also
need to have connected it up as shown in these instructions under Installation instructions.
Find the App and open it. Press “Connect
unit”.
Then key in the ID number that has been stuck on top of the Gateway.

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Create user on the App
Set up multiple users for the App
Create user by keying in the email
address that you want to attach to the
gateway/unit.
Press “OK”. You have now been set up as a
user.
It is now possible to delete the user, to get
a new access code via email, or to log out.
You can attach multiple users to the App.
Set up multiple user for the same Gateway/unit, e.g. access for husband and wife.
You do this by attaching Gateway ID, and key in email address and password con-
nected to the Gateway.

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Add more units/Gateways to the App
You can attach several units/Gateways to the App.
Under settings, press add ID, and key in the Gateway number and the email address of
the user.

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User manual
Nilan User App
Introduction
The following instructions are general and apply to all Nilan ventilation units. Some of the shown functions and settings may therefore
not exist on your ventilation unit. The user settings that are applicable to exactly your ventilation unit will more or less correspond to
those displayed in the Nilan User APP on your phone.
If you require a detailed description of individual functions and settings, you can download the software instructions for your
ventilation unit from our website.
Explanation of main screen items
1. On the main screen under the Nilan logo, you will see the number of the con-
nected Gateway.
Under settings, you can name the ventilation unit e.g. Home or Holiday home.
The name will then be displayed instead.
If you have more than one ventilation unit connected to the APP, you will be able
to see to which unit the shown data apply.
Next to the number is a WiFi icon that is green when there is connection to the
unit, and red if the connection is interrupted.
2. Here you can see the items that are relevant to your ventilation unit. If there
are too many items to fit the screen simultaneously, the rest will be below the
displayed items. You can access these by using your finger to scroll up.
If you press one of the items on the screen briefly, a settings menu will appear.
3. Shortcut key to return to main screen.
4. If you press this icon, you will see a list of all current and relevant data.
5. If you press this icon, you will get to a page where you can see a trend curve for
relevant data.
6. Pressing this icon will take you to settings where you will be able to add more
ventilation units.
7. The alarm icon will be displayed if an alarm is triggered on the unit. By pressing
the icon, you will get an outline of the most recent alarms.
If more ventilation units are connected to the same APP, you will have to go into
settings and select unit in order to see to which unit the alarm applies.

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Temperature
Ventilation
1. Press “back” to return to the previous page.
2. You can set the room temperature by scrolling up or down with your finger on
the icon. When the ventilation unit is operating in heating mode, the thermom-
eter is red. In cooling mode it is blue, and during neutral operation orange.
3. The icon for heating settings may be displayed if you have installed an after-
heating element. Press this icon to access heating settings.
4. Here you can see the current room temperature.
5. Here you can see the desired room temperature.
6. The cooling icon will be displayed if the unit has active cooling via a heat pump.
Press this icon to access the cooling settings.
7. If you scroll up the items with your finger, a menu appears where you can select
from the options AUTO, HEAT and COOL.
1. Press “back” to return to the previous page.
2. Here you can set the fan speed level you want. The fan speed level that you
have selected may differ from the one displayed on the main screen. This is
because the unit is able to override the set fan speed level, e.g. at high/low
humidity.

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Domestic hot water
1. Press “back” to return to the previous page.
2. If you scroll down with your finger, you can read off the current temperature of
the hot water.
3. You can set the domestic hot water by scrolling up or down with your finger on
the icon. It is indicated under the thermometer when the unit is producing
domestic hot water. The colour inside the thermometer changes in accordance
with the temperature. A temperature >40°C is red, 30-40°C is orange, and
<30°C is blue. Then you can see whether there is enough hot water for a bath.
4. Here you can see the current setting of the hot water temperature.
5. Press this icon to access more settings.
6. Press here to deactivate the production of hot water. You can reactivate the
hot water production by using your finger to scroll up the thermometer and
select the desired water temperature.
The settings icon (5) gives you access to settings related to supplementary electric
heating and anti-legionella measures.
1. Press “back” to return to the previous page.
2. Here you can choose at what temperature the supplementary electric heating
should be activated in order to help heat the domestic hot water.
3. Here you can deactivate the supplementary electric heating.
4. Here you can turn off the anti-legionella treatment. You can also set a particu-
lar day during the week for anti-legionella treatment.

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Air humidity
CO2 settings
1. Press “back” to return to the previous page.
2. Here you can set the value for low level of humidity between 15– 45%.
3. Here you can set the fan speed level for low humidity between level 1 – 3. You
can also deactivate the function.
4. Here you can set the fan speed level for high humidity between level 2 – 4. You
can also deactivate the function.
5. Here you can set the maximum time at high humidity.
6. Press this icon to access more settings.
1. Press “back” to return to the previous page.
2. Here you can set the temperature to prevent low outdoor temperature
between -20 – +10°.
3. Here you can set the fan speed level to prevent low humidity between level 1–
3. You can also deactivate the function.
1. Press “back” to return to the previous page.
2. Here you can set the value for normal CO2level between 400 - 700.
3. Here you can set the value for high CO2level between 650 - 2500.
4. Here you can set the fan speed level between level 2 - 4. You can also deacti-
vate the function.

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Filter replacement
Show data
Trend curve
Trend curves for relevant data are currently being prepared.
1. Press “back” to return to the previous page.
2. Here you can set the amount of days between filter replacements.
3. Here you can reset the alarm for filter replacement.
4. Here you can turn off the ventilation unit before filter replacement and turn
the unit on again afterwards.
ATTENTION
Remember never to leave the unit off for a long period of time as con-
densate water may form in the unit and duct system and subsequently
cause damage.
You can read off current operational data for the ventilation unit. This will allow you
to check that the unit operates satisfactorily and to identify the cause of potential
alarms.