Vaillant VR 50 User manual

Operating and installation instructions
GB, IE
Radiator thermostat
VR 50
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. [phone] Fax [phone]
[e-mail] www.vaillant.de

2Operating and installation instructions 0020248967_00
Contents
Contents
1 Safety ..............................................................................4
1.1 Action-related warnings ..............................................4
1.2 Intended use...................................................................5
1.3 General safety information......................................... 7
2 Notes on the documentation...................................9
2.1 Observing other applicable documents...................9
2.2 Storing documents........................................................9
2.3 Validity of the instructions .........................................9
3 System and product description...........................10
3.1 Component of the ambiSENSE system.................10
3.2 Design of the product .................................................12
3.3 Display.............................................................................13
3.4 Window-opening detector..........................................14
3.5 Radio operation ............................................................15
3.6 Flashing sequence of the signal LED ......................16
3.7 Duty cycle limit .............................................................18
3.8 CE marking.....................................................................19
3.9 Checking the scope of delivery................................20
4 Integration into the ambiSENSE system...........21
4.1 Pairing.............................................................................21
5 Set-up............................................................................24
5.1 Installing the radiator thermostat...........................24

3
Operating and installation instructions 0020248967_00
Contents
5.2 Installing the radiator thermostat with Danfoss
adapter...........................................................................27
5.3 Installing the radiator thermostat with support
ring..................................................................................32
6 Start-up ........................................................................33
6.1 Adaptive run.................................................................33
7 Operation......................................................................34
7.1 Changing the operating mode.................................34
7.2 Setting the temperature............................................34
7.3 Using the Boost function...........................................35
7.4 Activating/deactivating the operation lock ..........36
8 Troubleshooting..........................................................36
8.1 Command not confirmed...........................................36
8.2 Fault messages.............................................................37
8.3 Resetting to factory setting......................................38
9 Care and maintenance............................................ 40
9.1 Caring for the product.............................................. 40
9.2 Changing batteries.......................................................41
10 Decommissioning...................................................... 46
10.1 Decommissioning the product................................ 46
10.2 Recycling and disposal...............................................47
11 Customer service ......................................................47
12 Technical data............................................................ 48

4Operating and installation instructions 0020248967_00
a
Safety
a1
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified
in accordance with the severity of the pos-
sible danger using the following warning
signs and signal words:
Warning symbols and signal words
aDanger!
Imminent danger to life or risk of
severe personal injury
eDanger!
Risk of death from electric
shock
aWarning.
Risk of minor personal injury

Operating and installation instructions 0020248967_00 5
aSafety a
1
bCaution.
Risk of material or environmental
damage
1.2 Intended use
In the event of inappropriate or improper
use, damage to the product and other
property may arise.
You can use the radiator thermostat for
the time-controlled regulation of common
radiator valves from the following manu-
facturers:
– Heimeier
– MNG
– Junkers
– Landis & Gyr (Duodyr)
– Honeywell-Braukmann
– Oventrop
– Schlösser
– Comap
– Valf Sanayii
– Mertik Maxitrol

6Operating and installation instructions 0020248967_00
a
Safety
a1
– Watts
– Wingenroth (Wiroflex)
– R.B.M
– Tiemme
– Jaga
– Siemens
– Idmar
Intended use includes the following:
– observance of accompanying operating,
installation and servicing instructions
for the product and any other system
components
– installing and fitting the product in
accordance with the product and sys-
tem approval
– compliance with all inspection and
maintenance conditions listed in the
instructions.
Intended use also covers installation in
accordance with the IP class.
Any other use that is not specified in these
instructions, or use beyond that specified

Operating and installation instructions 0020248967_00 7
aSafety a
1
in this document shall be considered
improper use. Any direct commercial or
industrial use is also deemed to be
improper.
Caution.
Improper use of any kind is prohibited.
1.3 General safety information
1.3.1 Danger caused by improper
operation
Improper operation may present a danger
to you and others, and cause material
damage.
>Carefully read the enclosed instructions
and all other applicable documents, par-
ticularly the “Safety” section and the
warnings.
>Only carry out the activities for which
instructions are provided in these oper-
ating instructions.

8Operating and installation instructions 0020248967_00
a
Safety
a1
1.3.2 Risk of material damage
caused by frost
>Do not install the product in rooms
prone to frost.
1.3.3 Risk of material damage
caused by unsuitable
environmental conditions.
The electronics may be damaged if you
install the product in an unsuitable envi-
ronment.
>Only install the product in dry, dust-free
rooms.
>Ensure that the product is not exposed
to constant solar or heat irradiation,
vibrations or mechanical loads.
1.3.4 Regulations (directives, laws,
standards)
>Observe the national regulations, stand-
ards, guidelines and laws.

Operating and installation instructions 0020248967_00 9
aNotes on the documentation a
2
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.
2.2 Storing documents
>Keep this manual and all other applica-
ble documents safe for future use.
2.3 Validity of the instructions
These instructions apply only to:
Product article number
VR 50 0020247920
VR 50 0020242487

System and product description
10 Operating and installation instructions 0020248967_00
3
3 System and product
description
3.1 Component of the
ambiSENSE system
The product is part of the ambiSENSE
room climate solution and communicates
with the VR 920 Internet gateway via a
radio protocol. All products in the
ambiSENSE room climate solution can be
configured using the VRC 700 app on a
smartphone.
You can use the radiator thermostat for
the time-controlled regulation of the tar-
get room temperature via the VRC 700
app and adjust the heating times to suit
your needs. The Boost function means
that the radiator can be rapidly heated for
a short period by opening the radiator
valve.
The product is paired to the VR 920 Inter-
net gateway via the VRC 700 app.

System and product description
Operating and installation instructions 0020248967_00 11
3
You manually start the pairing mode for
three minutes by briefly pressing the sys-
tem button.
The product is suitable for all common
radiator valves with thread dimensions of
M30 x 1.5 mm. Using the adapter that is
included in the scope of delivery means
that the product can also be installed on
Danfoss RA, Danfoss RAV and Danfoss
RAVL radiator valves.
The product can automatically decrease
the target temperature during ventilation.
To precisely control the room temperature,
the optional ambiSENSE VR 51 room ther-
mostat can record the actual room tem-
perature centrally and transfer this to the
radiator thermostat.

System and product description
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3
3.2 Design of the product
5
1
2
3
4
1 Knurled nut
2 Display
3 System button with signal LED
4 Battery compartment
5 Setting wheel

System and product description
Operating and installation instructions 0020248967_00 13
3
3.3 Display
iNote
The background lighting for the dis-
play is switched off in Standby
mode. To activate the background
lighting, press the setting wheel
once.
VALVE adapt
VALVE install
MANU BOOST
8
7
6
5
1
2
3
4
1 Operation lock active
2 Automatic decrease active

System and product description
14 Operating and installation instructions 0020248967_00
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3 Radio data transmission
4 Low battery charge
5 Boost mode active
6 Manual mode active
7 Target temperature °C
8 Status information for the valve
3.4 Window-opening detector
When a window is open, e.g. for ventila-
tion, the system automatically lowers the
temperature in order to save heating
energy and costs. No window sensor is
required for this function. This function is
implemented in the ambiSENSE software
and is activated by a measured tempera-
ture drop. After the window is closed, the
product is switched back to the original
operating mode. When switching to auto-
matic mode, the temperature is brought to
the desired temperature that is set in the
time programme.

System and product description
Operating and installation instructions 0020248967_00 15
3
3.5 Radio operation
The radio signal is transmitted on a
non-exclusive transmission path. Faults
can therefore not be ruled out. Interfer-
ences may, for example, be caused by
switching operations, electric motors or
defective electrical units.
The range inside buildings may differ con-
siderably from the range outdoors. Except
for the transmission power and the recep-
tion properties of the transceivers, envi-
ronmental influences (such as air humidity
and structural elements) play an important
role on-site.

System and product description
16 Operating and installation instructions 0020248967_00
3
3.6 Flashing sequence of the
signal LED
Flashing
sequence Meaning Required activity
Brief period
of flashing
orange
Radio trans-
mission/
transmission
attempt/data
transmission
Wait until the
transmission
has ended.
1 x long
period of
lighting up
green
Process con-
firmed Continue with the opera-
tion.
1 x long
period of
lighting up
red
Process failed
or duty cycle
limit reached
Wait for the
Duty Cycle
interval and
try again.
Brief period
of flashing
orange (every
10 seconds)
Pairing mode
active Enter the dig- its of the unit
number to
confirm.

System and product description
Operating and installation instructions 0020248967_00 17
3
Flashing
sequence Meaning Required
activity
Brief period
of lighting up
orange (after
a green or
red reception
notification)
Batteries flat Replace the
batteries.
3 x long
period of
flashing red
Product
defective Note the dis- play in the
App or con-
tact the spe-
cialist dealer.
Lights up 1
x orange
and 1 x
green (after
inserting the
batteries)
Test display Once the test
display goes
out, you can
continue.

System and product description
18 Operating and installation instructions 0020248967_00
3
Flashing
sequence Meaning Required
activity
Long and
brief period
of flashing
orange (alter-
nating)
Update to the
unit software
(OTAU = Over
the Air
Update)
New software
is trans-
ferred. (Dura-
tion: Up to 12
hours) This
does not
affect how
the product
works during
this time.
3.7 Duty cycle limit
The duty cycle limit describes a legally
regulated limit on the transmission time of
units in the 868 MHz range. The aim of
this regulation is to guarantee that all
units that work in the 868 MHz range
work correctly. In the frequency range 868
MHz that is used by the product, the maxi-
mum transmission time for each individual
unit is 1% of an hour (i.e. 36 seconds in

System and product description
Operating and installation instructions 0020248967_00 19
3
1 hour). The product complies with this
directive.
In normal mode, the duty cycle limit is not
normally reached. In individual cases, e.g.
during start-up or the new installation of a
system, increased and radio-intensive pair-
ing processes may mean that this limit is
not reached. If the duty cycle limit is
exceeded, the signal LED lights up red for
one extended period and may indicate that
a function is temporarily missing from the
product. After a short time (max. one
hour), the product’s function is restored.
3.8 CE marking
The CE mark shows that the products
comply with the basic requirements of the
applicable guidelines as stated on the data
plate.

System and product description
20 Operating and installation instructions 0020248967_00
3
The manufacturer hereby declares that the
type of radio equipment that is described
in these instructions complies with Direc-
tive 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/.
3.9 Checking the scope of delivery
>Check that the scope of delivery is com-
plete and intact.
Number Designation
1 Radiator thermostat
3 Danfoss adapter (RA, RAV, RAVL)
1 Danfoss RAV tappet extension
1 Support ring
1 M4 nut
1 M4 x 12 mm fillister head screw
2 LR6/Mignon/AA batteries