Vaillant VR 91 User manual

For the operator For the competent person
Operating and installation instructions
VR 91
VR 91
GB, IE
Operating and installation instructions
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Telefon [phone]‑0 Telefax 021 91 18‑28 10
[email protected] www.vaillant.de

Contents
2Operating and installation instructions VR 91 0020200905_00
Contents
1 Safety ............................................ 3
1.1 General safety information............. 3
1.2 For the competent person.............. 3
1.3 Intended use .................................. 3
2 For the operator ........................... 5
2.1 Notes on the documentation.......... 5
2.2 Product overview ........................... 5
2.3 Operating ....................................... 6
2.4 Service message ........................... 6
2.5 Fault message ............................... 6
2.6 Detecting and rectifying faults........ 6
2.7 Caring for the product .................... 7
2.8 Decommissioning .......................... 7
2.9 Guarantee and customer
service ........................................... 7
2.10 Technical data ............................... 7
3 For the competent person .......... 8
3.1 Notes on the documentation.......... 8
3.2 Product overview ........................... 8
3.3 Installing the remote control unit
in a living room............................... 8
3.4 Electrical installation ...................... 9
3.5 Start-up .......................................... 9
3.6 Handing over to the operator ......... 9
3.7 Operating ..................................... 10
3.8 Fault messages and faults........... 10
3.9 Decommissioning ........................ 10
3.10 Customer service......................... 11
Appendix ............................................... 12
A For the operator ......................... 12
A.1 Operating modes ......................... 12
A.2 Operating levels........................... 12
B For the competent person ........ 14
B.1 Installation assistant .................... 14
B.2 Installer level................................ 14
B.3 Fault messages ........................... 15
B.4 Faults ........................................... 15

Safety 1
0020200905_00 VR 91 Operating and installation instructions 3
1 Safety
1.1 General safety
information
1.1.1 Risk caused
by inadequate
qualifications
Assembly and disassembly,
installation, start-up, mainten-
ance, repairs and decommis-
sioning must only be carried out
by a competent person who is
sufficiently qualified to observe
all of the instructions that come
with the product, to proceed
in accordance with the current
state of the art, and to comply
with all applicable directives,
standards, laws and other regu-
lations.
1.2 For the competent
person
1.2.1 Risk of material damage
caused by frost
▶Do not install the product in
rooms prone to frost.
1.2.2 Requirements for lines
▶Use standard commercial
lines for the wiring.
–Minimum cross-section:
≥0.75 mm²
–Maximum line length:
≤125 m
1.3 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 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 system
approval
–compliance with all inspection
and maintenance conditions
listed in the instructions.
Intended use also covers in-
stallation in accordance with the
IP class.
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.

1 Safety
4Operating and installation instructions VR 91 0020200905_00
Caution.
Improper use of any kind is
prohibited.

For the operator 2
0020200905_00 VR 91 Operating and installation instructions 5
2 For the operator
2.1 Notes on the documentation
2.1.1 Observing other applicable
documents
▶You must observe all operating instruc-
tions enclosed with the system compon-
ents.
2.1.2 Storing documents
▶Keep this manual and all other applic-
able documents safe for future use.
2.1.3 Applicability of the
instructions
These instructions apply only to:
VR 91 –article number
Great Britain 0020171334
2.2 Product overview
2.2.1 CE label
The CE label shows that the products
comply with the basic requirements of the
applicable directives as stated on the iden-
tification plate.
The declaration of conformity can be
viewed at the manufacturer's site.
2.2.2 Design of the product
1
2
3
4
5
6
5
1 Display
2 Wall-mounting
base
3 Diagnostics
socket
4 Wall-mounting
base cover
5 Selection button
6 Rotary knob
2.2.3 Identification plate
The identification plate is located on the
product's PCB and cannot be accessed
from the outside once the product has
been mounted on the wall.
The identification plate contains the follow-
ing information:
Information on the
identification plate
Meaning
Serial number For identification
VR 91 Unit designation
V Operating voltage
mA Current consumption
Product complies
with European stand-
ards and directives
Proper disposal of
the product
2.2.4 Serial number
The 10-digit article number can be found in
the serial number. You can view the serial

2 For the operator
6Operating and installation instructions VR 91 0020200905_00
number under Menu →Information Serial
number. The article number is found in
the second line of the serial number.
2.2.5 Control function
The product is a wired remote control unit.
Communication takes places over a 2-core
eBUS line.
You can use the product to set and/or
change the functions of a zone, such as
the operating mode or times and temperat-
ures.
2.3 Operating
You can only operate the remote control
unit in combination with the VRC 700 con-
troller. This means that it is also necessary
to read through the operating instructions
for the VRC 700 controller.
The operating instructions for the controller
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.
Overview of operating modes and
functions
Operating modes (→Page 12)
Operating levels (→Page 12)
2.4 Service message
When maintenance is required, Mainten-
ance and the symbol will appear in the
remote control unit display.
You can read the specific maintenance
messages on the controller display and
find out which measures you need to take
from the controller operating instructions.
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 heat-
ing installation, otherwise it could cause
material damage or make the heating in-
stallation malfunction.
▶Inform a competent person.
If you would like to see the basic display
in the display again, press the left-hand
selection button Back.
You can call up the current fault messages
under Menu →Information →System
status →Fault status →Fault list.
2.6 Detecting and rectifying faults
Fault Cause Remedy
Display is
dark
Appli-
ance
fault
–Switch off the
mains switch
on all heat
generators
for approx. 1
minute and
then switch
them on again
–Inform the
competent
person if the
fault persists
or if you do not
have the option
of switching off
the heat gener-
ator.
No changes
in the display
when the
rotary knob
is turned
No changes
in the display
via the selec-
tion buttons
are pressed
Lines appear
instead of
setting and
read-out val-
ues in the
display
Commu-
nication
fault
Inform the skilled
tradesman

For the operator 2
0020200905_00 VR 91 Operating and installation instructions 7
2.7 Caring for the product
Caution.
Risk of material damage
caused by unsuitable clean-
ing agents.
▶Do not use sprays, scouring
agents, detergents, solvents
or cleaning agents that con-
tain chlorine.
▶Clean the casing with a damp cloth and
a little solvent-free soap.
2.8 Decommissioning
2.8.1 Replacing the remote control
unit
The heating installation must be shut down
before replacing its remote control unit.
▶This work should be carried out by a
competent person.
2.8.2 Recycling and disposal
▶The competent person who installed
your product is responsible for the dis-
posal of the packaging.
If the product is identified 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 old electrical or electronic
appliances.
If the product contains batteries that
are marked with this symbol, these bat-
teries may contain substances that are
hazardous to human health and the envir-
onment.
▶In this case, dispose of the batteries at
a collection point for batteries.
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
conditions. All requests for work during the
guarantee period must be made to Vaillant
Service Solutions (0870 6060 777).
2.9.2 Customer service
To ensure regular servicing, it is strongly
recommended that arrangements are
made for a Maintenance Agreement.
Please contact Vaillant Service Solutions
(0870 6060 777) for further details.
2.10 Technical data
Max. operating voltage 24 V
Current consumption < 50 mA
Supply line cross-section 0.75
… 1.5 mm²
Level of protection IP 20
Protection class III
Maximum permitted ambient
temperature 0 … 60 ℃
Curr. room air hum. 35 … 95 %
Height 115 mm
Width 147 mm
Depth 50 mm

3 For the competent person
8Operating and installation instructions VR 91 0020200905_00
3 For the competent person
3.1 Notes on the documentation
3.1.1 Observing other applicable
documents
▶You must 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 system
operator.
3.2 Product overview
3.2.1 Checking the scope of
delivery
Quant-
ity
Contents
1 Remote control unit
1 Fastening material (2 bolts and 2
wall plugs)
1 Operating and installation instruc-
tions
3.3 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 temperature.
–Installation height: 1.5 m
Ø6
1
2
1
2
3
14
1 Openings for
cable duct
2 Mounting holes
3 Pin header with
terminals for the
eBUS line
4 Opening slot
2. Screw on the wall-mounting base as
shown in the illustration.
3. Connect the eBUS line.
4. Carefully push the remote control unit
into the wall-mounting base.

For the competent person 3
0020200905_00 VR 91 Operating and installation instructions 9
3.4 Electrical installation
When connecting the eBUS line, there is
no need to pay attention to the polarity. If
the two connections are switched around,
communication is not affected.
3.4.1 Connecting the remote control
unit to a heat generator
1. At lengths of over 10 m, 230 V supply
lines must be laid separately from bus
lines.
2. When opening the electronics box in
the heat generator, proceed as de-
scribed in the installation instructions
for the heat generator.
Conditions: The heat generator is not connected to
the eBUS via the VR 32.
▶Connect the eBUS line to the eBUS
terminals in the wall-mounting base of
the remote control unit.
▶Connect the eBUS line to the eBUS
terminals in the heat generator.
3.5 Start-up
When the system is started up for the first
time after completing the electrical installa-
tion, the installation assistants for the com-
ponents and the VR 91 remote control unit
will 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
operator and competent persons.
Installation assistant (→Page 14)
3.5.1 Selecting setting values
Conditions: Settings in the remote control unit
▶Select the required language in the
Language function.
▶Enter an address for the remote con-
trol unit to communicate with in the Re-
mote control address function.
Conditions: Settings in the controller
▶If you would also like to use the room
temperature sensor in the remote con-
trol unit, select the Temp. mod. or
Thermost. value in the Room temp.
mod. function.
▶Specify in which zone the remote con-
trol unit has been installed.
▶Scroll through the display to the zone in
which the remote control unit has been
installed.
▶Set the value to Yes in the Zone activ-
ated function for this zone.
▶In the Zone assignment function in
this zone, assign the address for the
remote control unit that should be
triggered.
3.6 Handing over to the operator
▶You must inform the operator about
how to handle their product and how
it works.
▶Provide the operator with all relevant
instructions and unit documentation for
safe-keeping.
▶Go through the operating instructions
with the operator .
▶Answer any questions the operator may
have.
▶In particular, draw the operator's atten-
tion to the safety information that they
must follow.
▶Inform the operator 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 operator that all the radiator
valves in the room where the product is
installed must be fully open.

3 For the competent person
10 Operating and installation instructions VR 91 0020200905_00
3.7 Operating
You can find the operator setting and read-
out options in the appendix.
Operating modes (→Page 12)
Operating levels (→Page 12)
The operating instructions for the controller
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.
Overview of functions
Installer level (→Page 14)
3.7.1 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
are no faults, the message No fault ap-
pears here. If there is a fault, the status
Fault list is displayed. If you press the
right-hand selection button, fault mes-
sages are displayed.
3.7.2 Reading the software version
Menu →Installer level →System config-
uration [System ----] →Control modules
–You can use this function to read the
software versions of the remote control
unit.
3.7.3 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.
3.8 Fault messages and faults
3.8.1 Fault messages
If a fault occurs in the heating installation,
will appear in the display together with a
fault message.
You can also read all current error mes-
sages under the following menu point:
Menu →Installer level →System config-
uration [System ----] →Fault status
–If a fault has occurred, Fault list will
appear in the Fault status function.
Press the right-hand selection button
to display a list of fault messages.
Note
Not all fault messages in the list
will appear automatically on the
basic display.
3.8.1.1 Overview of fault messages
and faults
Fault messages (→Appendix B.3)
Faults (→Appendix B.4)
3.9 Decommissioning
3.9.1 Replacing the product
1. Decommission the heating installation
if you want to replace the product.
2. Decommission the heat generator,
as described in the heat generator's
installation instructions.
3.9.2 Removing from the wall
1. Insert the screwdriver into the slot on
the wall-mounting base.
2. Carefully lever the remote control unit
from the wall-mounting base.
3. Unfasten the eBUS line from the pin
header on the remote control unit and
from the terminal block on the heat
generator.

For the competent person 3
0020200905_00 VR 91 Operating and installation instructions 11
4. Unscrew the wall-mounting base from
the wall.
3.10 Customer service
Customer service addresses can be found
in the installation instructions for the con-
troller.

Appendix
12 Operating and installation instructions VR 91 0020200905_00
Appendix
A For the operator
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 –
1 x ventilation boost Active –
Party Active –
A.2 Operating levels
A detailed description of the functions can be found in the operating instructions for the
controller.
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 number Current values
Information →Serial number
Unit number Permanent value
Desired temperatures →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

Appendix
0020200905_00 VR 91 Operating and installation instructions 13
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
Time period 1: Start -
End
Time period 2: Start -
End
Time 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
Time period 1: Start -
End
Time period 2: Start -
End
Time period 3: Start -
End
00:00 24:00 h:min 00:10
Days away 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 →

Appendix
14 Operating and installation instructions VR 91 0020200905_00
Setting level Values Unit Increment, select Default
setting
Min. Max.
Selectable language Deutsch
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
Basic settings →Enter zone name →
ZONE1 1 10 A to Z, 0 to 9, space ZONE1
Installer level →
Enter code 000 999 1 000
B For the competent person
B.1 Installation assistant
Setting Values Increment, select Default setting
Min. Max.
Language Languages available
for selection
Deutsch
Remote control address 1 8 1 1
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*
Controller modules Display Software version
Remote control address 1 8 1 1
* If there is no fault, 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.

Appendix
0020200905_00 VR 91 Operating and installation instructions 15
B.3 Fault messages
Message Possible cause Measure
Room temp. sensor
fault
The room temperature
sensor is defective
1. Replace the room temperature sensor.
No zone assignment
for the remote con-
trol or the controller
No remote control
address
1. Set the correct address on the remote con-
trol unit.
No zone assignment 1. Set the correct address for the remote con-
trol unit on the controller.
System fault Faults in the system 1. Assess the fault messages in the control-
ler.
B.4 Faults
Possible cause Measure
Display remains dark Software error 1. Switch the mains switch on the heat gener-
ator that feeds the controller off and back
on again.
No power at the heat
generator
1. Check the power supply of the heat gener-
ator that feeds the controller.
The product is defect-
ive
1. Replace the product.
No changes in the
display when the
rotary knob is turned
Software error 1. Switch the mains switch on the heat gener-
ator that feeds the controller off and back
on again.
The product is defect-
ive
1. Replace the product.
No changes in the
display when the se-
lection buttons are
pressed
Software error 1. Switch the mains switch on the heat gener-
ator that feeds the controller off and back
on again.
The product is defect-
ive
1. Replace the product.
Lines appear instead
of set and read-out
values
Communication fault 1. Check the plug connection.
2. Replace the cable.
ymt
pom
S

0020200905_00 25.02.2015
Vaillant Ltd
Nottingham Road Belper Derbyshire DE56 1JT
Telephone [phone] Vaillant Service Solutions 44 807 06 06 07 77
Spares Technical Enquiries 44 17 73 59 66 15
[email protected] [email protected]
www.vaillant.co.uk
© These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only
with the manufacturer's written consent.
*2703822_rev0*