AeoTec Radiator Thermostat ZWA021 User Manual
RAV Pin*
RAVL
3. Move Radiator Thermostat to the desired installation location.
Used in this guide.
Important safety information.
Please read this and the online guide(s) at
support.aeotec.com/trv carefully. Failure to follow the
recommendations set forth by Aeotec Limited may be
dangerous or cause a violation of the law. The manufacturer,
importer, distributor, and/or reseller will not be held responsible
for any loss or damage resulting from not following any
instructions in this guide or in other materials.
4. Set your Z-W ave gateway into its ‘add device’ mode.Refer to
the gateway’s manual if you are unsure of how to perform
this step.
Radiator Thermostat
ZW A021
Locking Ring
5. Press Radiator Thermostat’s Boost Button once. The screen
will show [ICON] to indicate that inclusion is in progress. It
will then show an ID number indicating that your thermostat
has successfully connected to your gateway. Should ERR
appear on the screen instead, your thermostat has been
unable to join the network; press the Boost Button again to
clear the error and then repeat the above steps. Please
contact us for further support if needed.
RAV
LCD Screen
Radiator Thermostat is intended for indoor use in dry locations
only. Do not use in damp, moist, and / or wet locations.
6. W hen it is connected to your Z-W ave gateway, physically
install your thermostat upon the selected radiator. The
screen will show INS indicating that physical installation can
begin.
Quick start.
The following will step you through installing Radiator
Thermostat and connecting it to your Z-W ave network.
RA
a. Ensure that no buttons are pressed during the following
steps.
1. Decide on the installation location of Radiator Thermostat.
Spirit Z-W ave Plus
Action Button
Botón de acción / Bouton d'action / Aktionsknopf /
Pulsante di azione / Actieknop / Åtgärdsknapp
2. Insert the 2 pcs AA LR6 batteries, paying attention to the
polarity.
b. Remove any existing radiator thermostat. Follow that
thermostat’s user guide for instructions.
Install the thermostat by screwing the metal ring to the
valve.
Diagram 2; Choose the right adapters.
c. If your valve does not fit, use the supplied adapters to
mount the thermostat.
The adapters for Danfoss RAV (pin must be plugged on the
valve tappet) Danfoss RA and Danfoss RAVL
are included.
For the following valves no adapter is required:
Heimeier, Junkers Landy + Gyr, MNG, Honeywell, Braukmann,
as these have a thread of M30 x 1.5mm.
For the following valves an adapter is required:
Diagram 1; Battery installation.
1. 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,
Adapters for
Danfoss valves
Batteries (x2)
Screw for adapter
Bottom cover
| General | Details |
|---|---|
| Name | AeoTec Radiator Thermostat ZWA021 User Manual |
| Make | Aeotec |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.17 MB |

Aeotec ZWA021 Manual: Questions and Answers
How do I start exclusion mode on the Aeotec ZWA021?
Press and hold the boost button for at least 5 seconds.
- Start exclusion or unpair mode on your Z-Wave Controller first.
- Press and hold the boost button on the thermostat for at least 5 seconds.
- If successful, the display shows '0' and the device is unpaired.
- If unsuccessful, the display shows '18' and you must repeat from step 1. User Manual, p. 2
What does it mean when the Aeotec ZWA021 shows error code 18 during exclusion?
The unpair attempt failed. Repeat the exclusion steps beginning with starting unpair mode on your Z-Wave Controller. User Manual, p. 2
Can the Aeotec ZWA021 be installed without an adapter on the radiator?
Yes, it can be installed at the radiator without an adapter, though adapter installation is also supported. User Manual, p. 2
What frequency range does the ZWA021 operate on?
868.40 to 926.3 MHz depending on local restrictions. User Manual, p. 2












