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Scope of supply

1x Comet Z-wave

1x Operating instructions (part of the product)

3x Adapters (Danfoss RA, Danfoss RAV, Danfoss RAVL)

Intended use

With Comet Z-wave, you have acquired a programmable radiator thermo-

stat, which can be used to regulate temperature in closed rooms and thus 

can contribute to a reduction in heat energy. Please use the regulator for 

this purpose only.  

Safety instructions
Never recharge, short-circuit or disassemble the batteries - danger 
of explosion! Remove expired batteries from the device immediately.  
Shield batteries from strong heat - increased risk of leakage! 
Do not use new and old batteries together. Clean batteries and device 
contact before installation if necessary. Keep batteries away from 
children.  Avoid contact with skin, eyes and mucous membranes.  
Rinse areas affected by battery acid with clean water immediately 
and seek medical advice. 

Description

Comet Z-wave is a Z-Wave radio standard compatible 

energy-saving radiator thermostat.

Use

The installation of the Comet Z-waves can easily be installed on all known 

valve bottom sections; without dirt or water spots because the heating 

circuit is not interrupted. 

1.  Fully unscrew the old thermostat, loosen the fi tting

  and remove from the valve.

2. 2. Remove the battery cover, by pressing it upwards on the marked spot  

  (1) and take it off its hinges (2).

  

    

(1)

(2)

Install the batteries as shown. Do not use rechargeable batteries! 

Ensure correct polarity! PREP appears on the display. The motor will 

start completely in order to facilitate installation. As soon as the regulator 

is installation-ready, INST appears on the display. The fl ashing radio 

symbol signals that the device is ready to be enrolled. Start the enrolment 

procedure (Inclusion) on your Gateway/Controller in order to include the 

device in the network. 

3. Screw the union nut (ring on product) on the valve. If the union nut does  

 not 

fi t on you valve, you probably need an adapter. 

4. Press the button in the battery compartment. The energy-saving thermo 

  stat shows ADAP in the display and carries out an initialisation run. 

  After initialisation, the energy-saving thermostat shows the main screen.  

  INFO When an error occurs, an error code is shown. 

  Look in the „Help“ table. 

No adapter is required for the following valves:
Heimeier, Junkers Gyr, MNG, Honeywell Braukmann, since 
these have thread dimensions of M30 x 1.5 mm. Adapters for Danfoss 
RAV (pin must be put on the valve tappet) Danfoss RA and Danfoss 
RAVL are enclosed. 

An adapter is required for the following valves: 
Herz 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 or Gampper 1,2,6. These can be found at www.eurotronic.org

Please fully remove the plastic connectors before you use one of the 
enclosed adapters! Please fully remove the connecting rods marked 
in grey before installing the adapter!

Addition/removal to/from the network
In order to enrol and delete the device manually, start the enrolment/
deletion process of your central unit/gateway. Press and hold the 
button in the battery compartment of the Comet Z-wave for 5 
seconds. The device moves into installation position in order 
to enable (de)installation. 
 
Operation and display elements on the display
1. Battery empty 
2.  Comfort temperature active 
3.  Economy temperature active 
4.  Window-/frost protection function active 
5. Wireless active   
6.  AUTO or MANU mode active
7.  Adjusting wheel + and -
8.  Button in battery compartment

Basic modes of operation

AUTO mode
The Comet Z-wave regulates temperature as per factory settings or 
wireless set-up

Factory settings
     Comfort temperature (Factory settings 22°C)
 

  Economy temperature (Factory settings 18°C)

MANU mode

Comet Z-wave switches to MANU mode when you change the 
temperature by hand on the adjusting wheel. The setting overwrites 
the wireless set-up for two hours. After this, the setting changes 
automatically to the previously-programmed setting. If you wish to 
change the settings prior to this, you may do this via wireless. 

Standby
The screen switches off 30 seconds after the last entry on the device 
to save electricity. The display can be switched on again by turning the 
adjusting wheel in any direction. 

Frost protection, open window recognition and hard water protection 
functions are automatically active. 

Frost protection function
If the temperature falls below 6°C, the energy-saving thermostat 
opens the valve until the temperature rises above 8°C again.  
This stops the radiator from freezing.

Hard water function
To avoid calcifi cation of the radiator valves, the energy-saving 
thermostat carries out a hard water protection cycle once a week. 

Open window function
If the temperature falls sharply, open window recognition is activated 
and the open window active symbol is shown. In this instance, the 
valve is closed for 15 minutes.

Uninstallation 

           

In order to uninstall the energy-saving thermostat, press and hold the 
button down for 3 seconds. The device moves into the installation po-
sition.  When the installation position has been reached (display shows 
INST), youmay take out the batteries and unscrew the energy-saving 
thermostat from the valve. 

Cleaning
Use only a dry to lightly-damp cloth to clean the Comet Z-wave. 
Avoid using chemical solvents,. They may damage the device. 

Advice on environmental protection:

From the date of implementation of European guidelines 
2002/96/EC and 2006/66/EC, into national law, the following 
applies: Electric and electronic devices and batteries may 
not be disposed of in household waste. The consumer 
is obliged to return electric and electronic devices and 
batteries to the public collection points established for 

them or to the point of sale.  The particulars of this are regulated 
by the applicable state laws.  The symbol on the product, operation 
instructions or packaging points to these provisions. You make 
an important contribution to the protection of the environment by 
reusing or recycling old equipment/batteries or making use of them 
in other ways.

Declaration of conformity

Eurotronic Technology GmbH hereby declares that this 
device is compliant with the essential requirements and 
other relevant provisions of  1995/5/EC. The declaration of 

conformity according to the R&T TE guideline 99/5/EC can be found at 
www.eurotronic.org. 

Guarantee

The three-year warranty begins on the day of purchase. Please keep
the receipt as evidence of purchase in the future. During the guaran-
tee period, defective radiator thermostats may be sent to the service
address below. Please ensure suffi cient postage is paid. A new or
repaired device will then be sent to you free of charge. Following
expiry of the guarantee, you may still send the defective device to
the address below for repairs. Please ensure suffi cient postage is
paid. Repairs carried out after the guarantee period are subject to a
charge. Your legal rights are not affected by this guarantee. There
is no new warranty period starting when repairing or replacing the
device. Please note that we only grant warranty on the function of
the device. We will not grant warranty for the interaction between
the thermostat and the bottom part of the valve. The technical data
is only valid for the use of the following valves: Heimeier, Junkers
Gyr, MNG, Honeywell, Braukmann (measure of thread M30
x 1,5), Oventrop (M30 x 1,5) Danfoss RA, RAV and RAVL. Please see
the combinations of the devices on our website (www.eurotronic.
org/ Adapter list) EUROtronic does not issue a guarantee when using
the thermostat with valves which are not mentioned above.

Operating instructions
Comet Z-wave

An intelligent home in two simple steps: 

www.eurotronic.org

Installation
Install the batteries. PREP appears on the display. The motor will start 
completely in order to facilitate installation. INST appears on the display 
as soon as the Comet Z-wave is installation-ready. The fl ashing radio 
symbol signals that the device is ready to be enrolled. 

Restoring factory settings
To restore factory settings,  proceed as follows: 
1) Start the deletion process through the central unit or Gateway
2)  Press and old the button in the battery compartment for 5 seconds. 

Button in battery compartment

Comet Z-wave

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