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.

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Installation instructions
Gateway
Connections overview Gateway
Electrical connection
Using the supplied cable, connect the Gateway to 230V.
1. 230V connection (wire included)
2. Reserved for future connections
3. Connection to the Modbus connection of the unit
4. Connection to the user’s internet router
5. Light to check connection

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Connecting gateway to your Nilan unit
General information
You will be able to communicate with your Nilan unit once the gateway has been connected to the Modbus communication of the unit.
The connection to the individual unit may vary, depending on its control system, control panel, software version and age.
Below you will find a list of products and software versions that you can connect to Nilan Gateway. If the software version on your unit
is outdated, you will need to get an engineer or technician to update the software. If your unit has a different control system to the ones
listed, you will not be able to connect it to a Nilan Gateway.
LAN cable types:
Please note that there are different types of LAN cables with RJ45 plugs.
CTS400 CTS602/CTS602i CTS602/CTS602i CTS602Light
All Comfort ventilation units
- residential
SW 1.0
or newer
SW 2.24
or newer
SW 1.6.6.0
or newer
SW 1.1.15.0
or newer
All other ventilation units
with heat pumps
- residential
N/A SW 2.38r
or newer
SW 1.6.45.0
or newer
N/A
All Comfort ventilation units
- commercial
N/A SW 2.38r
or newer
SW 1.6.45.0
or newer
N/A
All VPM/VPL ventilation
units
- commercial
N/A SW 2.38r
or newer
SW 1.6.45.0
or newer
N/A
All VPR ventilation units
- commercial
N/A SW 2.38r
or newer
SW 1.6.45.0
or newer
N/A
Standard cable from Nilan. All the following illustrations
regarding installation are shown with A cables.
B cables may occur. On the following illustrations regarding
installation, green/white are replaced with orange/white.
ATTENTION
Do not use a crossover cable. The cable length must be max. 20 m.

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Connection to units with a CTS400 control system
All ventilation units with a CTS400 control system are equipped with an RJ45 port.
If no other external connection has been established to the ventilation unit, you can simply run an RJ45 cable from the Modbus input on
the gateway to the RJ45 port on the ventilation unit. You will then be connected.
The location of the RJ45 port on the ventilation unit can be found in the installation instructions for the individual unit.
If external units have been connected up, this is likely do have been done via a connection box. If that is the case, connect the RJ45 cable
to the gateway. Then cut off the RJ45 plug at the other end of the cable and connect the cable to the connection box. Follow the diagram
below.
Connection to CTS400 connection box
Green/white - GND (1)
Blue/white - Modbus - (5)
Blue - Modbus+ (4)
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.

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Connection to units with a CTS602 control system with 6-pole plug
Older ventilation units with a CTS602 control system are equipped with a 6-pole plug for the control panel. Consult the instructions for
your ventilation unit to establish what kind of port it has.
If this is the type you have, a cable should be run directly to the circuit board in the ventilation unit. We recommend that this is done by
a Nilan engineer or technician.
Connection on the CTS602 circuit board
Blue - Modbus+ (2/CN7 - A1)
Blue/white - Modbus - (3/CN7 - B1)
Green/white - GND (6/CN7)
In the installation instructions for the individual unit you can find information about the location of the circuit board in the ventilation
unit and how to run the cable to it.
The 6-pole plug looks like this:
WARNING
Disconnect the power supply for the ventilation unit before opening the unit doors. You can now connect the gateway
to the circuit board.
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.

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Connection to units with a CTS602 control system with 8-pole plug
Some ventilation units with a CTS602 control system are equipped with an 8-pole plug for the control panel. You can connect Modbus
in that. Consult the instructions for your ventilation unit to establish what kind of port it has and where it is situated.
Connection CTS602 8-pole plug
Blue/white - Modbus - (7)
Blue - Modbus+ (6)
Green/white - GND (1)
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.

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Connection to units with a CTS602 control system with RJ45 port
Some ventilation units with a CTS602 control system are equipped with an RJ45 port. Consult the instructions for your ventilation unit
to establish what kind of port it has.
If no other external connection has been connected up to the ventilation unit, the port will hold an RJ45 plug with shunt. Remove this
and insert a splitter cable instead. Connect the RJ45 plug with shunt to one of the ports at the end of the splitter cable. Connect the
gateway to the other port.
The location of the RJ45 port on the ventilation unit can be found in the installation instructions for the individual unit.
If external units have been connected up, this is likely do have been done via a connection box. If that is the case, connect the RJ45 cable
to the gateway. Then cut off the RJ45 plug at the other end of the cable and connect the cable to the connection box. Follow the diagram
below.
Connection to CTS602 connection box
Blue/white - Modbus - (5)
Blue - Modbus+ (4)
Green/white - GND (1)
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.

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Connection to units with CTS602 control system - commercial
Some commercial ventilation units have a connection box on the outside of the unit. On others you have to connect Modbus directly
on the circuit board. Consult the instructions for your ventilation unit to establish what kind of port it has.
Connection CTS602 connection box - commercial
Blue/white - Modbus - (7)
Blue - Modbus+ (6)
Green/white - GND (1)
In this case, a cable should be run directly to the circuit board in the ventilation unit. We recommend that this is done by a Nilan engineer
or technician.
Connection on the CTS602 circuit board
Blue - Modbus+ (2/CN7 - A1)
Blue/white - Modbus - (3/CN7 - B1)
Green/white - GND (6/CN7)
The location of the circuit board in the ventilation unit can be found in the installation instructions for the individual unit.
WARNING
Disconnect the power supply for the ventilation unit before opening the unit doors. You can now connect the gateway
to the circuit board.
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.

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Connecting to the internet
Using an RJ45 cable, you connect the gateway to a router with internet connection (cable not supplied by Nilan).
Once the gateway is connected to a power supply and connection to the router has been established, you will have a secure cloud con-
nection. You can now use the Nilan User APP to communicate with the gateway.
Checking connections
ATTENTION
You must use a standard Type A (T-568A) LAN cable (not crossover cable), max. 20 m.
The ONLINE indicator makes it possible for you to check the con-
nections by using the following code:
• When connecting 230V - the light will flash for 5 sec.
• When connecting Modbus communication - the light flashes
continuously
• When connecting a Router - the light comes on and stays on
• When connecting a Router without Modbus communication -
the light does not come on

Nilan A/S disclaims all liability for potential errors and omissions in printed instructions - or for loss or damages arising from published materials, whether these are due to errors or inexpediency in the publications or they have other causes. Without prior notice Nilan A/S reserves the right to make changes to the products and instructions. All trademarks belong to
Nilan A/S. All rights reserved.
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[email protected]
www.nilan.dk
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www.nilanuk.com
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Tel: [phone]
[email protected]
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