Vaillant VR 91 User manual
2Operating and installation instructions 0020200905_02
Operating and
installation instructions
Contents
1 Safety ............................................ 3
1.1 For the end user ............................ 3
1.2 General safety information for
the end user................................... 3
1.3 For the competent person.............. 4
1.4 General safety information for
the competent person .................... 4
1.5 Regulations (directives, laws,
standards)...................................... 5
2 For the end user........................... 6
2.1 Notes on the documentation.......... 6
2.2 Product description ........................ 6
2.3 Operation ....................................... 6
2.4 Maintenance message................... 7
2.5 Fault message ............................... 7
2.6 Troubleshooting ............................. 7
2.7 Care ............................................... 7
2.8 Decommissioning .......................... 7
2.9 Guarantee and customer
service ........................................... 7
3 For the competent person .......... 7
3.1 Notes on the documentation.......... 7
3.2 Product description ........................ 8
3.3 Set-up ............................................ 8
3.4 Installing the remote control unit
in a living room............................... 8
3.5 Electrical installation ...................... 9
3.6 Start-up .......................................... 9
3.7 Handing over to the end user ...... 10
3.8 Operation ..................................... 10
3.9 Resetting to factory setting .......... 10
3.10 Operating and display
functions ...................................... 10
3.11 Troubleshooting ........................... 11
3.12 Decommissioning ........................ 11
3.13 Recycling and disposal ................ 11
3.14 Customer service......................... 12
3.15 Technical data ............................. 12
Appendix ............................................... 13
A For the end user......................... 13
A.1 Operating modes ......................... 13
A.2 Operating levels........................... 13
A.3 Troubleshooting ........................... 15
B For the competent person ........ 15
B.1 Installation assistant .................... 15
B.2 Installer level................................ 16
B.3 Remedy ....................................... 16
B.4 Faults ........................................... 16
0020200905_02 Operating and installation instructions 3
1 Safety
1.1 For the end user
1.1.1 Intended use
In the event of inappropriate or
improper use, damage to the
product and other property may
arise.
The product enables a zone to
be controlled remotely via an
eBUS interface.
The following components are
required for operation:
–VRC 700
Intended use includes the fol-
lowing:
–observance of the operating
instructions included for the
product and any other install-
ation components
–compliance with all inspection
and maintenance conditions
listed in the instructions.
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.
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 General
safety information for
the end user
1.2.1 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 ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
▶Only carry out the activities
for which instructions are
provided in these operating
instructions.
1.2.2 Risk of material damage
caused by frost
▶Ensure that the heating in-
stallation always remains in
operation during freezing con-
ditions and that all rooms are
sufficiently heated.
4Operating and installation instructions 0020200905_02
▶If you cannot ensure the oper-
ation, have a competent per-
son drain the heating installa-
tion.
1.3 For the competent person
1.3.1 Intended use
In the event of inappropriate or
improper use, damage to the
product and other property may
arise.
The product enables a zone to
be controlled remotely via an
eBUS interface.
The following components are
required for operation:
–VRC 700
–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 code.
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.
1.4 General
safety information for
the competent person
1.4.1 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
–Installation
–Start-up
–Inspection and maintenance
–Repair
–Decommissioning
▶Proceed in accordance with
current technology.
1.4.2 Risk of material damage
caused by frost
▶Do not install the product in
rooms prone to frost.
0020200905_02 Operating and installation instructions 5
1.5 Regulations (directives,
laws, standards)
▶Observe the national regula-
tions, standards, directives,
ordinances and laws.
6Operating and installation instructions 0020200905_02
2 For the end user
2.1 Notes on the documentation
2.1.1 Observing other applicable
documents
▶Always observe all operating instruc-
tions enclosed with the installation com-
ponents.
2.1.2 Storing documents
▶Store these instructions and all other
applicable documents for further use.
2.1.3 Validity of the instructions
These instructions apply only to:
VR 91 –article number
Great Britain 0020171334
2.2 Product description
2.2.1 Product design
1
2
3
4
5
6
5
1 Display
2 Wall base
3 Diagnostics
socket
4 Wall base cover
5 Selection button
6 Rotary knob
2.2.2 Main function
The product sends data, such as the cur-
rent room temperature, to the system con-
trol. The product receives data from the
system control that you can read on the
display.
On the product you can, for example, set
the operating mode, the time periods or
the temperature.
2.2.3 Preventing malfunctions
▶Ensure that room air can circulate freely
around the system control, and that
the system control is not covered by
furniture, curtains or other objects.
▶Ensure that all thermostatic radiator
valves in the room where the system
control is fitted are fully open.
2.2.4 Data plate
The data plate is located inside the
product and is not accessible from the
outside.
2.2.5 Serial number
You can call up the serial number to the
display under Menu →Information →
Serial number. The 10-digit article num-
ber is located in the second line.
2.2.6 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 declaration of conformity can be
viewed at the manufacturer's site.
2.3 Operation
You can only operate the remote control
unit in combination with the VRC 700 sys-
tem control. This means that it is also ne-
cessary to read through the operating in-
structions for the VRC 700 system control.
The operating instructions for the system
control will provide you with
–Information on the operating structure.
0020200905_02 Operating and installation instructions 7
–Information on the operating concept
with examples.
–A detailed description of the operating
and display functions that the remote
control unit also has.
Operating modes (→Page 13)
Operating levels (→Page 13)
2.4 Maintenance message
If maintenance is required, the text Main-
tenance and the symbol appear in the
remote control unit display.
You can read the specific maintenance
messages on the system control display
and find out which measures you need to
take from the instructions for the system
control.
2.5 Fault message
If a fault occurs in the heating installation,
will appear in the display together with
a fault message. The competent person
must clear or rectify the fault in the heating
installation, otherwise it could cause ma-
terial damage or make the heating installa-
tion malfunction.
▶Inform a competent person.
2.6 Troubleshooting
Troubleshooting faults (→Appendix A.3)
2.7 Care
2.7.1 Caring for the product
▶Clean the casing with a damp cloth and
a little solvent-free soap.
▶Do not use sprays, scouring agents,
detergents, solvents or cleaning agents
that contain chlorine.
2.8 Decommissioning
2.8.1 Decommissioning the product
If you want to replace or remove the
product, you must decommission the
heating installation.
▶This work should be carried out by a
competent person.
2.9 Guarantee and customer
service
2.9.1 Guarantee
We only grant a Vaillant manufacturers
warranty if a suitably qualified engineer
has installed the system in accordance
with Vaillant instructions. The system
owner will be granted a warranty in ac-
cordance with the Vaillant terms and con-
ditions. All requests for work during the
guarantee period must be made to Vaillant
Service Solutions.
2.9.2 Customer service
For contact details for our customer ser-
vice department, you can write to the ad-
dress that is provided on the back page, or
you can visit www.vaillant.co.uk.
3 For the competent person
3.1 Notes on the documentation
3.1.1 Observing other applicable
documents
▶Always observe all the operating and
installation instructions included with the
system components.
3.1.2 Storing documents
▶Pass these instructions and all other
applicable documents on to the end
user.
3.1.3 Validity of the instructions
These instructions apply only to:
VR 91 –article number
Great Britain 0020171334
8Operating and installation instructions 0020200905_02
3.2 Product description
3.2.1 Data plate
The data plate is located on the product's
PCB and cannot be accessed from the
outside once the product has been moun-
ted on the wall.
The data plate contains the following in-
formation:
Information on the
data plate
Meaning
Serial number for identification;
7th to 16th digits
= product article
number
VR 91 Product designation
V Rated voltage
mA Rated current
Read the instructions
3.2.2 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 declaration of conformity can be
viewed at the manufacturer's site.
3.3 Set-up
3.3.1 Checking the scope of delivery
Quant-
ity
Contents
1 Remote control unit
1 Fastening material (2 bolts and 2
wall plugs)
1 Documentation
3.3.2 Requirements for lines
▶Use standard commercial lines for the
wiring.
–Minimum cross-section: ≥0.75 mm²
–Maximum line length: ≤125 m
3.4 Installing the remote control
unit in a living room
1. Mount the remote control unit on an
interior wall of the main living room
in a position that ensures accurate
measurement of the room temperat-
ure.
–Installation height: 1.5 m
Ø6
1
2
1
2
3
14
1 Openings for
grommet
2 Mounting open-
ings
3 Pin header with
terminals for the
eBUS line
4 Opening slot
2. Screw in the wall base in accordance
with the figure.
3. Connect the eBUS line. (→Page 9)
0020200905_02 Operating and installation instructions 9
4. Carefully push the remote control unit
into the wall base.
3.5 Electrical installation
Only qualified electricians may carry out
the electrical installation.
3.5.1 Polarity
When connecting the eBUS line, there is
no need to pay attention to the polarity. If
the connection cables are switched over,
communication will not be adversely af-
fected.
3.5.2 Connecting the remote control
unit to a heat generator
1. At lengths of 10 m or more, power
supply cables and bus lines must be
laid separately.
2. When opening the electronics box in
the heat generator, proceed as de-
scribed in the installation instructions
for the heat generator.
Condition: The heat generator is not connected to
the eBUS via the VR 32.
▶Connect the eBUS line to the eBUS
terminals in the wall base of the remote
control unit.
▶Connect the eBUS line to the eBUS
terminals in the heat generator.
3.6 Start-up
When you are operating the heating in-
stallation for the first time after installing
the electrical wiring, the installation assist-
ants for the system components and the
remote control unit start automatically.
All settings that you have applied using
the installation assistant can be changed
again at a later date via the level for the
end user and competent persons.
Installation assistant (→Page 15)
3.6.1 Configuring the settings on the
remote control
1. Select the required language in the
Language function.
2. Enter the address the system control
needs in order to communicate with
the remote control unit in the Remote
control address function.
3.6.2 Configuring the settings on the
system control
1. If you would also like to use the room
temperature sensor in the remote
control unit, select the Temp. mod. or
Thermost. setting in the Room temp.
mod. function.
2. Specify in which zone the remote con-
trol unit has been installed.
3. Scroll through the display to the zone
in which the remote control unit has
been installed.
4. Reduce the setting in this zone to Yes
in the Zone activated function.
5. Assign the address for the remote
control unit that should be triggered
in the Zone assignment function in
this zone.
3.6.3 Changing the settings later
All settings that you have made via the in-
stallation assistant can be changed again
at a later date via the end user or installer
level.
Operating levels (→Page 13)
Installer level (→Page 16)
10 Operating and installation instructions 0020200905_02
3.7 Handing over to the end user
▶Inform the end user of how to handle
and operate their product.
▶Provide the end user with all relevant
instructions and unit documentation for
safe-keeping.
▶Go through the operating instructions
with the end user.
▶Answer any questions the end user may
have.
▶In particular, draw the end user's at-
tention to the safety warnings that they
must follow.
▶Inform the end user that room air must
be able to circulate freely around the
product, and that it should not be
covered by furniture, curtains or other
objects.
▶Inform the end user that all the radiator
valves in the room where the product is
installed must be fully open.
3.8 Operation
You can only operate the remote control
unit in combination with the VRC 700 sys-
tem control. This means that it is also ne-
cessary to read through the operating in-
structions for the VRC 700 system control.
The operating instructions for the system
control will provide you with
–Information on the operating structure.
–Information on the operating concept
with examples.
–A detailed description of the operating
and display functions that the remote
control unit also has.
Operating modes (→Page 13)
Operating levels (→Page 13)
3.9 Resetting to factory setting
You can use this function to reset all the
set values that you configured using the
remote control installation assistant.
You can access the Reset to default
setting? function directly by activat-
ing the remote control using the rotary
knob or one of the selection buttons and
then pressing and holding both selection
buttons at the same time for at least 10
seconds.
3.10 Operating and display
functions
The remote control has an end user level
and an installer level.
The setting and read-out options for the
competent person can be found via the
selection button Menu →Installer level →
Enter code.
If you do not know the code, you can clear
the code using the Default setting func-
tion. All the set values will be lost if you do
this.
Operating modes (→Page 13)
Operating levels (→Page 13)
Installer level (→Page 16)
The path details given at the start of each
function description indicate how you
reach this function in the menu structure.
3.10.1 Reading the fault status
Menu →Installer level →System config-
uration [System ----] →Fault status
–This function allows you to read the
status of the heating installation. If there
is no fault present, the No fault mes-
sage appears. If a there is a fault, then
Fault list appears as a status. If you
press the right-hand selection button,
the fault messages (→Page 11) will be
displayed.
3.10.2 Reading the software version
Menu →Installer level →System config-
uration [System ----] →Control modules
0020200905_02 Operating and installation instructions 11
–You can use this function to read the
software versions of the remote control
unit.
3.10.3 Setting the address for the
remote control unit
Menu →Installer level →System config-
uration [System ----] →Remote control
address
–You can use this function to set the ad-
dress for the remote control unit.
Every remote control unit has a unique ad-
dress, starting with Address 1. Increase
the number in the address consecutively
for each additional remote control unit
used.
3.11 Troubleshooting
3.11.1 Fault messages
If a fault occurs in the heating installation,
will appear in the display together with
a fault message.
Troubleshooting faults (→Appendix B.3)
Troubleshooting errors (→Appendix B.4)
3.12 Decommissioning
3.12.1 Decommissioning the heating
installation
▶Decommission all system components
of the heating installation, as described
in the installation instructions for the
individual system components.
3.12.2 Removing the product from
the wall
1. Insert the screwdriver into the slot on
the wall base.
2. Lever the product off the wall base.
3. Disconnect the eBUS line from the pin
header on the product and from the
terminal block on the heat generator.
4. Unscrew the wall-mounting base from
the wall.
3.13 Recycling and disposal
Packaging
▶Dispose of the packaging correctly.
This product is an electrical or electronic
unit within the context of EU Directive
2012/19/EU. The unit was developed and
manufactured using high-quality materials
and components. These can be recycled
and reused.
Find out about the regulations that apply in
your country regarding the separate collec-
tion of waste electrical or electronic equip-
ment. Correctly disposing of old units pro-
tects the environment and people against
potential negative effects.
▶Dispose of the packaging correctly.
▶Observe all relevant regulations.
Disposing of the product
If the product is labelled with this
symbol:
▶In this case, do not dispose of the
product with the household waste.
▶Instead, hand in the product to a collec-
tion centre for waste electrical or elec-
tronic equipment.
Disposing of batteries
If the product contains batteries that
are labelled with this symbol:
▶In this case, dispose of the batteries at
a collection point for batteries.
◁Prerequisite: The batteries can be
removed from the product without
causing any destruction. Otherwise,
the batteries are disposed of to-
gether with the product.
▶In accordance with the legal regula-
tions, the end user is obligated to re-
turn used batteries.
Deleting personal data
Personal data may be misused by unau-
thorised third parties.
12 Operating and installation instructions 0020200905_02
If the product contains personal data:
▶Ensure that there is no personal data
on or in the product (e.g. online login
details or similar) before you dispose of
the product.
3.14 Customer service
Customer service addresses can be found
in the installation instructions for the sys-
tem control.
3.15 Technical data
3.15.1 Remote control unit
Rated voltage 9 to 24 V
Rated surge voltage 330 V
Pollution degree 2
Rated current < 50 mA
Supply line cross-section 0.75 to
1.5 mm²
IP rating IP 20
Protection class III
Temperature for the ball
pressure test
75 ℃
Maximum permitted environ-
mental temperature 0 to 60 ℃
Current room air humidity 20 to 95 %
Mode of operation Type 1
Height 115 mm
Width 147 mm
Depth 50 mm
0020200905_02 Operating and installation instructions 13
Appendix
A For the end user
A.1 Operating modes
Operating mode Setting Default setting
Operating mode
Heating off,Auto,Day,Set-back Auto
Cooling off,Auto,Day Auto
Advanced functions
1 day at home active –
1 day away from home active –
Ventilation boost active –
Party function active –
A.2 Operating levels
A detailed description of the functions can be found in the operating instructions for the
system control.
Setting level Values Unit Increment, select Default
setting
Min. Max.
Information →System status →
System ----
Fault status Current value No fault,Fault list
Curr. room air hum. Current value %
Current dew point Current value ℃
ZONE1 ----
Day temp. heating Current value ℃0.5 20
5 30
Day temp. cooling Current value ℃0.5 24
15 30
Set-back temp. heat. Current value ℃0.5 15
5 30
Room temperature Current value ℃
Information →Contact details →
Installer,Phone num-
ber
Current values
Information →Serial number →
Unit number Permanent value
Desired temperature →ZONE1 →
Day temp. heating 5 30 ℃0.5 20
Day temp. cooling 15 30 ℃0.5 24
Set-back temp. heat. 5 30 ℃0.5 15
14 Operating and installation instructions 0020200905_02
Setting level Values Unit Increment, select Default
setting
Min. Max.
Time programmes →ZONE1: Heating →
Individual days and
blocks
Monday,Tues-
day,Wednesday,
Thursday,Friday,
Saturday,Sunday
and Monday - Fri-
day,Saturday -
Sunday,Monday -
Sunday
Mo - Fr:
06:00-
22:00
Sa: 07:30-
23:30
Su: 07:30-
22:00
Period 1: Start –End
Period 2: Start –End
Period 3: Start –End
00:00 24:00 h:min 00:10
Time programmes →ZONE1: Cooling →
Individual days and
blocks
Monday,Tues-
day,Wednesday,
Thursday,Friday,
Saturday,Sunday
and Monday - Fri-
day,Saturday -
Sunday,Monday -
Sunday
Mo - Fr:
06:00-
22:00
Sa: 07:30-
23:30
Su: 07:30-
22:00
Period 1: Start –End
Period 2: Start –End
Period 3: Start –End
00:00 24:00 h:min 00:10
Days away from home scheduling →
Start 01.01.01 31.12.99 dd.mm.yy Day.Month.Year 01.01.14
End 01.01.01 31.12.99 dd.mm.yy Day.Month.Year 01.01.14
Temperature 5 30 ℃1 15
Days at home scheduling →
Start 01.01.01 31.12.99 dd.mm.yy Day.Month.Year 01.01.14
End 01.01.01 31.12.99 dd.mm.yy Day.Month.Year 01.01.14
Basic settings →Language →
Selectable language English
Basic settings →Display →
Display contrast 1 15 1 9
Button lock off,On Off
Preferred display Heating,Cooling Heating
Basic settings →Offset →
Room temperature -3.0 3.0 K0.5 0.0
0020200905_02 Operating and installation instructions 15
Setting level Values Unit Increment, select Default
setting
Min. Max.
Basic settings →Enter zone name →
ZONE1 1 10 A to Z, 0 to 9, space ZONE1
Installer level →
Enter code 000 999 1 000
A.3 Troubleshooting
Symptom Possible cause Measure
Display remains dark Software error 1. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
2. If the fault persists, inform the competent
person.
No changes in the
display when the
rotary knob is turned
Software error 1. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
2. If the fault persists, inform the competent
person.
No changes in the
display when the se-
lection buttons are
pressed
Software error 1. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
2. If the fault persists, inform the competent
person.
Lines appear instead
of set and read-out
values
Software error 1. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
2. If the fault persists, inform the competent
person.
B For the competent person
B.1 Installation assistant
Setting Values Increment, select Default setting
Min. Max.
Language Languages available
for selection
English
Remote control address 1 8 1 1
16 Operating and installation instructions 0020200905_02
B.2 Installer level
Setting level Values Increment, select Default setting
Min. Max.
Installer level →
Enter code 000 999 1 000
Installer level →System configuration →
System ----
Fault status Current value*
Control modules Display Software version
Remote control address 1 8 1 1
* If no fault is present, the status is No fault. If there is a fault, Fault list appears and you can
read the fault message in the "Fault messages" section.
B.3 Remedy
Code/meaning Possible cause Measure
Room temp. sensor
fault
Room temperature
sensor defective
▶Replace the remote control.
No zone assignment
for the remote control
or the controller
No remote control
address
▶Set the correct address on the remote con-
trol unit in the Remote control address
function.
No zone assignment ▶Set the correct address for the remote con-
trol unit on the system control in the Zone
assignment function.
System fault Fault in the heating
installation
▶Assess the fault messages in the system
control.
B.4 Faults
Symptom Possible cause Measure
Display remains dark Software error ▶Switch the mains switch on the heat gener-
ator that feeds the control off and back on
again.
No power supply on
the heat generator
▶Re-establish the power supply to the heat
generator; this is the same power supply
that feeds the control.
The product is defect-
ive
▶Replace the product.
No changes in the
display when the
rotary knob is turned
Software error ▶Switch the mains switch on the heat gener-
ator that feeds the control off and back on
again.
The product is defect-
ive
▶Replace the product.
No changes in the
display when the se-
lection buttons are
pressed
Software error ▶Switch the mains switch on the heat gener-
ator that feeds the control off and back on
again.
The product is defect-
ive
▶Replace the product.
0020200905_02 Operating and installation instructions 17
Symptom Possible cause Measure
Lines appear instead
of set and read-out
values
Communication fault 1. Check the plug connection.
2. Replace the cable.
Supplier
Vaillant Ltd.
Nottingham Road Belper Derbyshire DE56 1JT
Telephone 0330 100 3143
[email protected] www.vaillant.co.uk
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. +49 2191 18 0 Fax +49 2191 18 2810
[email protected] www.vaillant.de
© These instructions, or parts thereof, are protected by copyright and may be
reproduced or distributed only with the manufacturer's written consent.
Subject to technical modifications.
0020200905_02
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