Eurotronic Comet WiFi Operating instructions

Eurotronic Technology GmbH
Südweg 1 |36396 Steinau-Ulmbach |Germany
www.eurotronic.org
Comet WiFi
INSTALLATION AND
OPERATION GUIDE
Version 2022 07 15

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Comet WiFi
TABLE OF CONTENT
1. Scope of Delivery 3
2. Warning / Safety 4
3. Introduction Comet WiFi 5
4. Control and Display Elements 6
5. Installation and Start-Up 7
5.1 Download App 7
5.2 Create User Account 7
5.3 Add New Device 8
5.4 Choose WiFi Network 8
5.5 Inserting Batteries 9
5.6 Set Up Thermostat 9
5.7 Mounting to the Radiator 11
5.8 Adapters 12
5.9 Adaptation 13
5.10 Choosing Name and Room 13
6. Disassembly 14
7. Comet WiFi App 15
7.1 Temperature 15
7.2 Heating Profile 15
7.3 Settings 16
7.4 Holiday 16
7.5 Softwareupdate 17
7.6 Device Management 18
7.7 Support (App) 18
8. Main Functions 19
9. Further Functions 20
10. Error Messages and Help 21
11. Cleaning and Storage 22
12. Technical Specifications 22
13. Support and Contact 22
14. Legal Information 23
15. Warranty 23
The following operating instructions will guide you during commissioning and use of your Comet WiFi and answer all
essential questions. Please read these operating instructions carefully before using your Comet WiFi.

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Comet WiFi
1. SCOPE OF DELIVERY
1x Thermostat Comet WiFi
1x Quick Start Guide
3x Adapter (Danfoss RA / RAV / RAVL)
1x Screw for adapter
2x Batteries AA LR6
1x small tool
2x Batteries AA LR6
Screw for adapterComet WiFi Energy saving controller * If you use the RAV adapter, you need the
RAV pin for the Extension of the valve tappet
RAV
RA
RAVL
RAV Pin*
NOTE: The illustrations below are for illustrative purposes only and may different from the actual product.
NOTE: Check the scope of delivery for completeness and intactness.

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Comet WiFi
2. WARNING NOTES
WARNING! This signal word indicates a hazard with a medium degree of risk which, if not avoided, may result in death
or serious injury.
SAFETY NOTICE! This signal word describes circumstances that may pose a safety risk.
SAFETY NOTICE!
- Comet WiFi is intended for indoor use.
- Use Comet WiFi only as described in the operating instructions
- Comet WiFi should only be used in a dry and dust-free place without direct sunlight
- Do not continue to operate the device if it has obvious damage
- Comet WiFi must not be rebuilt, modified or opened.
WARNING! DANGER OF EXPLOSION!
Improper handling of batteries can lead to explosion
- Do not heat batteries and do not throw batteries into open fire.
- Do not place batteries in direct sunlight.
- Protect batteries from excessive heat.
- Do not short-circuit the batteries.
- Never attempt to charge non-rechargeable batteries.
- Never dismantle batteries.
- Do not use new and used batteries together.
- When inserting the batteries, observe the correct polarity (+/-).
- Before inserting the batteries, clean the batteries and the contacts in the thermostat.
WARNING! DANGER OF CHEMICAL BURNS!
Leaking battery acid can cause burns.
- Avoid contact of battery acid with skin, eyes and mucous membranes.
- In the event of contact with battery acid, immediately rinse the affected areas with plenty of clean water and consult
a doctor. consult a docto
WARNING! DANGER OF INJURY!
If children play with the thermostat or the packaging, they can swallow small parts and choke.
- Do not let children play with the thermostat or the packaging
- Keep batteries away from children. Seek medical attention immediately if batteries are swallowed.

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Comet WiFi
3. INTRODUCTION COMET WIFI
Thank you for choosing a product from Eurotronic Technology GmbH. This device can easily adjust the temperature in
your rooms according to your wishes and helps you to effectively reduce your heating costs.
Development and production are 100% “Made in Germany“, which guarantees the highest quality and technology. These
operating instructions will help you to put your device into operation quickly and easily.
DAS IST COMET WIFI
Comet WiFi is an energy-saving controller for radiators equipped with the WiFi radio standard, with modern and simple
operation. It automatically regulates your room temperature according to your specifications and is configurable, direct-
ly on the controller or conveniently via smartphone via your WiFi network.
Touchcontrol
allows perfect control and a
simple and clear operation as well.
WiFi connection
Control and configuration of the
thermostat via the WiFi network
Easy mounting
without intervention in the heating system.
Save heating costs
through energy-efficient control.

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Comet WiFi
4. CONTROL AND DISPLAY ELEMENTS
increase temperature
lower temperature
Radio symbol flashes = connection to the server is being established
Radio symbol lights up = thermostat is connected to the server
Radio icon not lit = No connection to the WiFi network
Deeper button in the battery compartment for performing the factory reset or activating the pairing mode:

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Comet WiFi
5. INSTALLATION AND START UP
5.1 DOWNLOAD APP
1. Download the „WiFi Smart Living“ app from the Google Play Store or Apple App Store.
System requirements
up from Android 6.0
5.2 CREATE USER ACCOUNT
1. Create a user account. Enter your email and choose a password.
2. Accept our terms and conditions and privacy policy.
3. Click on the „Create new account“ button.
System requirements
up from iOS 13
4. You will now receive an e-mail
Pin for verification. Check also your
spam folder.
5. Enter the email
Enter the pin you received in
the field.
6. Then click on
the “Login“ button.
Note: Make sure you enter a valid email address.
The app does not check the validity of the email.
The following explanations describe the procedure using an Android app (app version: 1.2) and may differ slightly for
Apple. In addition, the screenshots shown may differ from newer app versions.

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5. INSTALLATION AND START UP
5.3 ADD NEW DEVICE
5.4 CHOOSE NETWORK
The WiFi network to which your smartphone is connected is automatically display-
ed in this field. If you want to integrate your Comet WiFi into a different WiFi net-
work than the one shown to you, temporarily connect to a different WiFi network
in your smartphone‘s WiFi settings and return to the app. The correct WiFi network
is then displayed under “My WiFi network“.
Enter the password of your WiFi network correctly. This is important because the
app cannot check your home network‘s WiFi password. You will continue to be
guided through the setup wizard despite the incorrect password.
After entering the WiFi password,
click “Next“.
NOTICE:
Comet WiFi can only be integrated into 2.4 GHz WiFi networks. Connection and communication problems can occur in
mixed networks that transmit on both 2.4 GHz and 5 GHz.
NOTICE:
So that your WiFi network in the “My WiFi network“ field automatically
can be displayed, the following factors must be present:
1. Your WiFi network must operate on 2.4 GHz, since Comet WiFi can only be in-
tegrated into a 2.4 GHz WiFi network. This can be viewed in the settings of your
WLAN router and changed if necessary.
2. Your smartphone‘s location approval must be enabled.
3. The WiFi Smart Living app needs permission to access your location while
using the app. If you have denied location access in the app, go to your smart-
phone settings and adjust the permission. (Android: In the “Apps“ section, you can
grant the “WiFi Smart Living“ app location access again while using the app.)
Teach in a new device by clicking on the “Add device“ button (initial commis-
sioning) or the “+“ button. The pairing process will then start and you will be
guided through the installation of your thermostat with the help of a setup
wizard.

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5. INSTALLATION AND START UP
Insert the batteries.
Do not use rechargeable batteries and pay attention to the correct polarity!
5.5 INSERT BATTERIES
1. Go to your smartphone‘s WiFi settings and
connect to your thermostat there. Depending on the software version, your
thermostat will be configured with the WiFi radio name in the WiFi settings
“Comet WiFi“ or “Eurotronic“ is displayed. If you have purchased a device with
older software (radio name: Eurotronic), a software update will be carried out
directly during setup.
2. Now connect to your thermostat. Enter the device
password specified in the app.
NOTE: If a connection is established later or new
devices are taught in, it is possible that the device
password will no longer be requested.
IMPORTANT NOTE: After you have connected to your thermostat (“Comet WiFi“
or “Eurotronic“) in the WiFi settings, do not be confused by information such as
“not connected to the internet“.
The WiFi network temporarily generated by the thermostat is not comparable to
your WiFi network at home, as it is a WiFi network that is only necessary for the
pairing mode. This WiFi network has no Internet access.
Despite the message displayed, remain connected to the device and return to
the app to complete the learning process.
5.6 SETUP THERMOSTAT

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3. Click on the „Next“ button after you have returned to the app. Your device
will then be fully set up.
NOTE: If the loading bar does not run through to the end, temporarily deactiva-
te your smartphone‘s mobile data during the learning process. Also make sure
that your smartphone‘s location data is enabled and that you have granted
location access to the app.
5. INSTALLATION AND START UP
4. Your thermostat will then be set up and you will be given one
Notice when the thermostat has been set up successfully.
5. After the setup has been successfully completed, click on the “Next“ button.
A
b
b
.
3

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Comet WiFi
A
b
b
.
3
5.7 MOUNTING TO THE RADIATOR
Now mount your thermostat on the radiator and start the adaptation after
successful installation. To do this, hold the two arrow keys on the Comet
WiFi simultaneously for 3 seconds.
Comet WiFi can be easily installed on all known valve bodies (see adapter list
at www.eurotronic.org/service/faq).
1. Unscrew the old thermostat head completely, loosen the fastening and pull it off the valve (Fig. 3).
2. If necessary, select a suitable adapter and mount it on the valve (Fig. 4).
3. Screw the thermostat onto the valve or adapter by turning the union nut clockwise
unscrew (Fig.5).
ATTENTION:
Make sure that your Comet WiFi is also in the adaptation mode when installing / removing it later. Remove the batte-
ries briefly, reinsert the batteries and wait until the motor run is complete and “Ad“ appears on the display. Only mount/
dismount your Comet WiFi in this position.
A
b
b.
4
NOTE:
On the following pages you will find more detailed information on installing
and adapting your thermostat.
5. INSTALLATION AND START UP
A
b
b
.
5
After adaptation press “Next“.

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5. INSTALLATION AND START UP
5.8 ADAPTER
NOTE:
Completely remove the connecting pieces of the plastic adapter (Fig. 6) before using one of the enclosed adapters! For
Danfoss RA/RAV use the bolt and nut provided.
No adapter is required for the following valves:
home eggs; Junkers Landys+Gyr; MSG; Honeywell; Braukmann, as these have a thread size of M30 x 1.5 mm. The
adapters for Danfoss RAV (pin must be plugged into the valve tappet), Danfoss RA and Danfoss RAVL are included.
You need an adapter for the following valves:
Heart M28 x 1.5 mm; Comap M28 x 1.5 mm; Vaillant 30.5 mm; Oventrop M30 x 1.0 mm; Meges M38 x 1.5 mm;
Ondal M38 x 1.5 mm; Giacomini 22.6 mm; Rossweiner M33 x 2.0 mm; Markaryd M28 x 1.0 mm; Ista M32 x 1.0 mm;
Vama M28 x 1.0 mm; Pettinaroli M28 x 1.5 mm; T+A M28 x 1.5 mm; Gampper 1/2/6; Danfoss RA/RAV/RAVL.
You can purchase other chargeable metal adapters from our partners. An overview of the metal adapters and the
corresponding ordering options can be found under the following link:
https://eurotronic.org/produkte/zubehoer/metalladapter/
If you are not sure which valve you have, look under: https://eurotronic.org/service/faq under the button “Adapter list“.
RAV RA RAVLRAV Pin
Abb. 6

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After installation, Comet WiFi can start with the adaptation. “Ad“ appears in the display. To start the adaptation, hold
down the two arrow keys on your Comet WiFi simultaneously for approx. 3 seconds. After successful adaptation, Comet
WiFi goes into normal operation, the LEDs indicate the target temperature.
Should it be necessary to re-adapt because the thermostat behaves unexpectedly (see section section 9), it is sufficient
to remove the batteries and insert them again after about 10 seconds.
NOTE:
After a battery change, the adaptation process must be run through again.
5.9 INSTALLATION AND START UP
1. After you have mounted your Comet WiFi on the radiator and the once you
have completed the adaptation, you can give your Comet WiFi a name.
5.10 CHOOSING NAME AND ROOM
2. Then add your thermostat to a room.
3. Press the “Save“ button after you have specified a name and room.
NOTE:
If problems occur during storage, switch to the WLAN
Settings of your smartphone and reconnect to your home WiFi network. The pro-
blem may be that your smartphone has not automatically unpaired the connec-
tion to the thermostat again. If you then return to the WiFi Smart Living app, the
saving can be completed without any problems.

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Comet WiFi
6. DISASSEMBLY
To disassemble Comet WiFi, briefly remove the batteries. Put the batteries back in and wait until the motor
run is complete and “Ad” appears on the display. Now turn the union nut anti-clockwise and remove the
Comet WiFi from the valve (Fig. 7).
A
b
b
.
7

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7. COMET WIFI APP
You can adjust the current temperature to your needs at any
time with the control wheel. If the network connection is esta-
blished, the set temperature is immediately transferred to your
thermostat.
Deactivate: The saved heating profile is not active.
activate: The saved heating profile is active. You can
nevertheless make changes to the temperature at any time. The
manually set temperature then remains until the next switching
point. Then Comet WiFi switches back to the set heating pro-
gram.
7.1 TEMPERATURE
7.2 HEATING PROFILE
Here you can create a heating profile
for the whole week.
Under the menu item “Heating profile“ you
can create individual heating profiles.
Here you can create different
heating profiles for weekdays and
weekends.
Here you can create an individual
heating profile for each day.
After defining the heating
times, transfer your data
using the “Transfer heating
profile“ button.
Specify here which one
temperature should apply.
In the “Heating times“ area, enter
the time from which you want to
switch to a new temperature.
In the menu bar you can switch between the menu items:
Select “temperature“, “heating profile“, “settings“ and “holiday profile“.
Back to room
overview.
Here you can delete a heating time.
Add a new switching time.

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Select your time
and confirm with
“OK“.
7.4 HOLIDAY
Select the time of your
departure.
Under the menu item “Holiday“ you can create a
vacation profile for the time of your absence.
Choose the time of your
return.
Determine the tempe-
rature that should apply
during your absence.
Select your month and day and
confirm with “OK“
NOTE:
Remember to send the set data to the thermostat using the “Transfer holiday profile“ button.
Choose the sensitivity of the window open detection
(high, medium, low).
Activating the key lock disables manual operation on the
controller.
If you activate the “Summer/Winter time“ toggle switch, the
time changeover is carried out automatically.
7.3 SETTINGS
Activate this button to rotate the Comet WiFi display by 180°.
Set the desired length of time for which the valve
should remain closed.
If the perceived temperature differs from the set
If the temperature differs, you can carry out a temperature
adjustment.
Transfer your holiday
profile with this button.

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NOTE:
Leave your smartphone switched on during the software update.
Do not activate the key lock of your smartphone.
7.5 SOFTWAREUPDATE
Software updates are displayed under the
Software update menu item.
If an update for the software is
available, this button appears.
Click on this button.
Please note that the device
will temporarily not be opera-
ble and wirelessly accessible
while the new software is being
installed.
Click the “Start Update“ button
to start software update.
When the update is done, push
“Finish“ and come back to main
menu.
No reason for updates when
you see that screen.

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If you have any questions, you can
send an email to us.
Stop that tick activated,
so we can solve your
problem can recognize
faster.
7.6 DEVICE MANAGEMENT
7.7 SUPPORT (APP)
Note that the signal strength of your WiFi network should be in the
green area. Weak WiFi signal strength can lead to increased battery
drain on your Comet WiFi, resulting in a shorter battery life.
In addition, low signal strength can lead tocause problems.
Here you can see if your device is currently online or not.
Here you can see the current software, your Comet WiFi run with.
See the battery status of your Comet WiFi.
Check the WiFi signal strength of the thermostat.
See which WiFi network your Comet WiFi is connected to.
See the Mac-adress from your device.
Here you can remove your Comet WiFi from the room.
A long press on a room on the home page takes you to the thermostats that
are in that room.

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DISABLED HEATING PROFILE:
If you deactivate the heating profile in the app, Comet WiFi regulates to the manually set temperature. The temperatu-
res are not changed to the set switching point.
ACTIVATED HEATING PROFILE:
If you activate the heating profile in the app, Comet WiFi regulates according to the set heating profile.
You can still make changes to the temperature at any time (App or Comet WiFi). The manually set temperature then
remains until the next switching point. Then Comet WiFi switches back to the set heating profile.
NIGHT SETBACK TEMPERATURE:
At 12:00 a.m., Comet WiFi automatically regulates to 16°C. If you want to bypass this night-time lowering temperatu-
re, program a corresponding heating profile that ensures that your Comet WiFi returns to your comfortable temperature
at any time (e.g. from 6:00 a.m.).
HOLIDAY MODE:
For the time of your absence you can determine a freely selectable temperature. After the set time has elapsed, the
program you set will run again automatically. To set the vacation mode, select the “Vacation profile“ menu item in the
app. Here you can configure the vacation mode as desired.
If you press a button on the Comet WiFi during an active holiday profile, “Ho“ is shown in the display. If you press a
button again, the target temperature is shown on the display and holiday mode is deactivated.
HEATING PROFILE:
You can set your heating profiles easily and conveniently in the app under the “Heating profile“ menu item.
WINDOWS OPEN DETECTION:
If you open a window and the temperature drops sharply as a result, Comet WiFi automatically closes the heating valve
to save energy. In the app you can activate and deactivate the window open detection under the menu item “Settings“.
You can also define the settings for the window open detection. Set the desired length of time for which the valve
should remain closed and select the sensitivity of the window open detection (high, medium, low)
NOTE:
Depending on the installation situation of the thermostat and the set sensitivity, it can happen that the open window is
not recognized. It can also happen that a tilted window is not recognized if the temperature drop is not high enough.
OFFSET (TEMPERATURE ADJUSTMENT)
If the perceived temperature deviates from the set temperature, you can carry out a temperature adjustment. To do this,
select the “Settings“ menu item in the app and enter your desired temperature adjustment. A temperature adjustment
of -3°C to 3°C can be set.
8. MAIN FUNCTIONS

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NOTE: To reach the lower button in the battery compartment, use the small
tool supplied or a similarly thin object (e.g. paper clip).
9. FURTHER FUNCTIONS
DISPLAY ORIENTATION:
Depending on the positioning of your radiator valve, it may be necessary to rotate the display on your controller by
180°. To do this, go to the “Settings” menu item in the app. Here you can rotate the display of your Comet WiFi.
BUTTON LOCK:
To protect against unauthorized operation of your controller, you can block Comet WiFi. You can activate/deactivate the
key lock in the app under the menu item “Settings“. The button lock on the thermostat can also be activated/deactiva-
ted. To activate the key lock, hold down the two arrow keys for a few seconds. An animation appears on the display.
To deactivate the key lock, hold down the two arrow keys for a few seconds until the animation has been completely
stopped.
FROST AND LIME PROTECTION FUNCTION
The antifreeze and limescale protection functions are automatically active.
Frost protection function: If the temperature drops below 8°C, the display shows “--“. In this case, Comet WiFi opens
the valve until the temperature rises above 8°C again. Thus, freezing of the radiator prevented. Limescale protection
function:
To prevent the radiator valves from calcifying, Comet WiFi carries out a lime protection trip every Friday at 11:00 a.m.
MANUELLE OPERATION:
The room temperature can be changed manually at any time using the touch buttons on the Comet WiFi. If the heating
profile is activated, this manually set temperature remains until the next switching point. Then Comet WiFi switches
back to the programmed heating profile.
PAIRING MODE:
To activate the pairing mode, press the lower button in the battery compartment of your Comet WiFi once until “PA“
appears on the display.
FACTORY RESET:
If you want to reset the radiator controller to factory settings, press and hold the lower button in the battery compart-
ment of your Comet WiFi for 10 seconds. From the 5th second, a counter runs on the display of the
thermostat. Keep the button pressed until 10 appears on your Comet Wifi.