Vaillant sensoNET VR 921 Bedienungsanleitung
0020285487_05 Installation instructions 3
Installation instructions
1 Safety
1.1 Intended use
In the event of inappropriate or
improper use, damage to the
product and other property may
arise.
The product is used to control
your heating installation. The
communication unit is connec-
ted to your router using a LAN
cable or via WLAN, and estab-
lishes an Internet connection for
the heating installation.
Intended use includes the fol-
lowing:
–observance of accompanying
operating, installation and
maintenance instructions for
the product and any other
system components
–installing and setting up the
product in accordance with
the product and system ap-
proval
–compliance with all inspection
and maintenance conditions
listed in the instructions.
Intended use also covers in-
stallation in accordance with the
IP class.
This product can be used by
children aged from 8 years
and above and persons with
reduced physical, sensory or
mental capabilities or lack of
experience and knowledge if
they have been given supervi-
sion or instruction concerning
use of the product in a safe way
and understand the hazards in-
volved. Children must not play
with the product. Cleaning and
user maintenance work must
not be carried out by children
unless they are supervised.
Using the product with a power
supply unit other than the one
supplied or available as an ac-
cessory or with the connection
cable that is available as an
accessory for the direct con-
nection to the heat generator is
considered to be improper use.
Any other use that is not spe-
cified in these instructions, or
use beyond that specified in this
document, shall be considered
improper use. Any direct com-
mercial or industrial use is also
deemed to be improper.
Caution.
Improper use of any kind is
prohibited.
1.2 Risk caused by
inadequate qualifications
The following work must only
be carried out by competent
persons who are sufficiently
qualified to do so:
–Set-up
–Dismantling
4Installation instructions 0020285487_05
–Installation
–Start-up
–Inspection and maintenance
–Repair
–Decommissioning
▶Proceed in accordance with
current technology.
Validity: Russia
The competent person must be
authorised by Vaillant Group
Russia.
1.3 Risk of death from electric
shock
There is a risk of death from
electric shock if you touch live
components.
Before commencing work on
the product:
▶Unplug the mains plug.
▶Or disconnect the product
from the power supply by
switching off all power sup-
plies (electrical partition with a
contact gap of at least 3 mm,
e.g. fuse or circuit breaker).
▶Secure against being
switched back on again.
▶Wait for at least 3 minutes un-
til the capacitors have dis-
charged.
▶Check that there is no
voltage.
1.4 Qualification
Only qualified electricians may
carry out the electrical installa-
tion.
1.5 Risk of material damage
caused by using an
unsuitable tool
▶Use the correct tool.
1.6 Observing the safety
information
Validity: Russia OR Ukraine
▶Observe the safety informa-
tion in the section "Country-
specific information".
1.7 Safety warning –Power
supply unit
▶The power supply unit that is
provided must only be used
indoors.
▶Do not operate the power
supply unit in wet environ-
ments or in the rain.
▶If the power supply unit has
visible damage or is defect-
ive, you must not operate it.
▶Keep the power supply unit,
its individual parts and the
packaging material away from
children.
▶Only connect the power sup-
ply unit if the mains voltage
for the plug socket matches
the information on the data
plate.
0020285487_05 Installation instructions 5
▶Only connect the power sup-
ply unit to an easily access-
ible plug socket so that you
can disconnect the power
supply unit quickly from the
power grid in the event of a
fault.
▶The power supply unit heats
up during operation. Do not
cover the power supply unit
with objects, and ensure that
it is sufficiently ventilated.
▶The outer connection cable
on the power supply unit can-
not be replaced. If the con-
nection cable becomes dam-
aged, the entire power supply
unit must be scrapped.
▶When using the VRA 42
power supply unit, which is
available as an accessory:
Install the power supply unit
in the boiler in accordance
with the instructions. Con-
nect the power supply unit to
the unit PCB in accordance
with the boiler's installation
instructions.
1.8 Regulations (directives,
laws, standards)
▶Observe the national regula-
tions, standards, directives,
ordinances and laws.
6Installation instructions 0020285487_05
2 Notes on the
documentation
2.1 Observing other applicable
documents
▶You must observe all the operating and
installation instructions included with the
system components.
▶Observe the country-specific notes in
the Country Specifics appendix.
2.2 Storing documents
▶Pass these instructions and all other
applicable documents on to the end
user.
2.3 Validity of the instructions
These instructions apply only to:
Product article number
VR 921 0020260962,
0020260963,
0020260964
3 Product description
3.1 CE marking
The CE marking shows that the products
comply with the basic requirements of the
applicable directives as stated on the de-
claration of conformity.
The manufacturer hereby declares that the
type of radio equipment that is described
in these instructions complies with Direct-
ive 2014/53/EU. The complete text for the
EU Declaration of Conformity is available
at: http://www.vaillant-group.com/doc/doc-
radio-equipment-directive/.
3.2 Recycling and disposal
If the product is identified with this
symbol, it does not belong with the house-
hold waste at the end of its useful life.
▶Instead, take the product to a collection
point for recycling waste electrical or
electronic equipment.
For more information on where to take
waste electrical and electronic equipment,
contact your town or district authorities or
your waste recycling centre.
3.3 Symbols on the data plate
Symbol Meaning
Protection class III
3.4 Symbols on the data plate for
the power supply unit
Symbol Meaning
Protection class II
Use only in interior rooms
Polarity of the extra-low
voltage plug
3.5 Requesting licences
This product contains free and open-
source software. The corresponding li-
cence information is saved on the Wi-Fi
gateway and can be displayed using the
corresponding app.
You can request the source code, for a
processing fee, from the following address:
This offer applies for three years from the
date of purchase, or at least for the time
in which we offer support for the Wi-Fi
gateway.
0020285487_05 Installation instructions 7
4 Installation
4.1 Checking the assembly and
installation prerequisites
▶Check:
–WLAN signal available (if operation
with WLAN is selected)
–LAN cable available (if operation with
LAN is selected)
–eBUS line accessible, if required
–Free plug socket available, if required
–Routing and security parameters in
the IP network: Ports 80, 123, 443
and 8443 enabled for outgoing con-
nections
–Dynamic IP addressing (DHCP)
available
–The installation site and cabling for
the product with the heat generator is
not publicly accessible
–Internet connection for permanent
Internet communication is available
–The IP network has an activated fire-
wall and is encrypted, see technical
data
4.2 Wall installation, electrical
connection to the plug socket
▶Observe the installation steps in the
illustrated instructions at the end of this
document.
4.3 Alternative electrical
connection to the heat
generator (extra accessory
required)
1. Remove the power supply unit and
the eBUS connection cable.
2. Install the connection cable (article
number: 0020284732) for the direction
connection to the heat generator.
4.4 Connecting the product to the
Internet
1. Ensure that all additional system
components, such as the control, are
operating when you switch on the
product.
2. Briefly press the button in the pro-
duct's terminal block.
◁The product is now in coupling
mode for ten minutes.
3. For additional instructions, follow the
corresponding app.
4.5 Meaning of the LEDs
LED Status Meaning
Yellow/
green
Flashing The product starts.
Yellow/
green
Lights up The start process
ends; ready for
coupling
Blue Flickering The coupling mode
(WLAN) is active
Blue Lights up LAN/WLAN is avail-
able. The product is
ready for operation.
Blue Flashing Product software is
updating
Red Lights up Internet connection
was disconnected;
when connecting
via LAN: No Internet
connection available
4.6 Data protection and connecting
the product to the Internet as
well as EEBUS solutions from
third-party providers
You can only use the product's scope of
functions with the corresponding app. To
install the app, you must accept the T&Cs
and Privacy Policy.
If you connect the product to the Internet
via a LAN cable without using the corres-
ponding app, the product automatically
sends the following technical data to the
manufacturer's server:
8Installation instructions 0020285487_05
–Data about the product (serial number,
unit type, unit ID, etc.)
–Data about the firmware (firmware ver-
sion, update status, etc.)
–Data about the connected heating sys-
tem (serial numbers, unit types, unit IDs,
firmware versions, etc.)
A local network connection is the pre-
requisite in order to connect the product
with EEBUS-compatible products from
third-party providers. To start up the
products, the corresponding app must be
used.
When using EEBUS solutions from third-
party providers, the third-party provider's
T&Cs and Privacy Policy also apply with
regard to the collection and processing
of their data. The product manufacturer
has no influence on this and assumes no
liability for this.
4.7 Background information
For further information on the product and
the system (EEBus, system information,
etc.), you can call up the following website:
–www.vaillant.com/homecomfort
5 Repair
5.1 Replacing the power supply
unit
▶If you replace the power supply unit,
only use the original power supply unit
from the manufacturer (article number
0020116923 or 0020259111).
Note
The VRA 42 power supply unit
must only be used if the power
supply unit can be correctly in-
stalled in the boiler's electronics
box.
6 Technical data
6.1 Technical data –
Communication unit
Note
* Not applicable for article number
0020260964 and not applicable for
Russia/Ukraine.
** Applies for use with the connec-
tion cable for the direct connection
to the heat generator.
Rated voltage 5 to 24 V
Requirement for the
power supply **
ES1 or PS1 in
accordance with
IEC 62368-1
Radio frequency bands
*868.0–868.6 MHz,
869.4–869.65 MHz
WLAN radio frequency
band
2.4 GHz
Radio frequency output
at 868.0 –868.6 MHz
(max. e.r.p.)*
6.6 dBm
Radio frequency output
at 869.4 –869.65 MHz
(max. e.r.p.)*
6.9 dBm
WLAN radio frequency
output (max. e.r.p.)
17.5 dBm
WLAN channels 1–13
Wi-Fi encryption WPA2-PSK1 –13
IP assignment DHCP
Power consumption
(average)
3.0 W
Maximum envirno-
mental temperature
50 ℃
Low-voltage wire (bus
line) –cross-section
≥0.75 mm²
Ethernet cable (LAN) min. Cat 5
Height 96 mm
Width 122 mm
Depth 36 mm
IP rating IP 21
Protection class III
Permitted degree of
environmental pollution
2
0020285487_05 Installation instructions 9
6.2 Technical data –Plug-in power
supply unit
Rated voltage 110 to 240 V~
Rated current 0.5 A
Output AC voltage 5 V
Max. output direct cur-
rent
2.1 A
Power frequency 50/60 Hz
IP rating IP 20
Protection class II
Permitted degree of
environmental pollution
2
10 Figures 0020285487_05
Figures
1
SN(A):
211207
0020116884
0908005021N3
MACLAN(B):
00:1E:5E:A0:00:08
MACWLANStation (C):
00:1E:5E:A0:00:09
MACWLANAP(D):
00:1E:5E:A0:00:10
SGTIN (E):
1234-5678-1234-
5678-1234-NNNN
SKI (F):
1234AAAAFFFF1111
CCCC3333EEEEDDDD
99992222
21124200201168840809005011N0
1.
2.
2.6 mm
60 mm
4.
3.
eBUS
Opt
X16
TL Pump
X13
B.off RT BUS
X100
X24
5.
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4
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