Operating and Installation Manual
VR 90 Remote control device
Bus-modular control system
VR 90
GB
For heating engineer/owner
Operating and installation manual Remote control device VR 90 0020055329_002
Contents
Contents
Notes on the documentation ....................................3
Other applicable documents .............................................3
Attachment and storage of the documents ..................3
Symbols used ........................................................................3
Operating manual .......................................................4
Overview 1 - Operation ..............................................4
Overview 2 - Displays ...............................................6
1 Description of the device ...............................7
2 Operation .........................................................7
2.1 Display types ............................................................7
2.2 Dial ..............................................................................8
2.3 Operator guidance ..................................................8
2.3.1 Menu selection .........................................................9
2.3.2 Tables for the menu level ......................................9
2.3.3 Special functions ................................................... 14
3 Error messages ............................................. 15
4 Vaillant warranty ......................................... 15
Installation instructions ..........................................16
1 General information .......................................16
2 Safety instructions and regulations ...........17
2.1 Safety instructions .................................................17
2.2 Regulations ..............................................................17
3 Installation ......................................................17
3.1 Installation location ...............................................17
3.2 Installing the remote control .............................. 18
4 Electrical installation ....................................19
4.2 Connecting the remote control ......................... 19
4.2 Setting Bus address ............................................. 20
5 Start-up .......................................................... 21
5.1 Setting heating circuit parameters ....................21
5.2 Handing over the device to the owner ........... 25
6 Error codes ................................................... 25
7 Overview of functions ..................................27
8 Technical data ...............................................30
9 Vaillant Service .............................................31
3Operating and installation manual remote control device VR 90 0020055329_00
Notes on the documentation
Notes on the documentation
The following instructions are intended to help you
throughout the entire documentation.
Further documents apply in combination with this
operating and installation manual.
We accept no liability for any damage caused by nonobserve these instructions.
Other applicable documents
For the owner of the system:
Whilst operating the installation the individual operating
instruction manuals of the various installation
components must be observed.
For the heating engineer:
The respective installation manuals for the various
system components must be observed during the
assembly and start-up.
Attachment and storage of the documents
Please pass on this operating and installation manual to
the owner of the system. The owner will then be
responsible for its storage and for making the manual
available if required.
Symbols used
Please observe the safety instructions in this installation
manual when installing the device!
d
Danger!
Immediate risk of serious injury or death!
e
Danger!
Danger of death by electric shock!
H
Danger!
Danger of burning and scalding!
a
Caution!
Potentially dangerous situation for the product
and environment!
h
Note!
Useful information and instructions.
• Symbol for a necessary task
Operating manual Remote control device VR 90 0020055329_004
Overview 1 - Operation
Operating manual
Overview 1 - Operation
Basic data 1
Language
Date
Day of week
Time
> GB english
09.05.03
Fr
16:55
> Select language
2
1
3
45
Operating overview
Key
1 Menu name
2 Cursor indicating the selected parameter
3 Menu number
4 Dial
,
Set parameter (turn), Select parameter (press)
5 Dial ,
Select menu (turn), Activate special function (press)
Operation procedure
User level
Turn the dial
to select the menu
Press the dial
to select the parameter to be changed
Turn the dial
to change the selected parameter
5Operating manual Remote control device VR 90 0020055329_00
Overview 1 - Operation
Special functions
Only possible in the basic display (Saving, Party)
Press the dial
,
up to 2x
to select the special
function
Press the dial
to select the changed
parameter and to accept the
selected parameter value (after
changing by turning)
Turn the dial
to set the desired value (only
necessary for Saving)
Press the dial
to end the special function
Operating manual Remote control device VR 90 0020055329_006
Overview 2 - Displays
Basic display
Fr 17.05.02
heat zone 1
15:37
> heating
- 15°C
22°C
>select operation mode
room temperature 21° C
The display shows the current operating mode and the
target room value of the connected heating circuit. You
can change the operating mode of the heating circuit in
this display.
Display example on the menu level
Basic data
Language > GB english
>Select language
1
User-specific settings.
Display example on the code level
heat zone 1 C2
Parameter
Type: direct circuit
Night set back temp.
Heating curve
Max limit outs. temp
> 15 °C
0,90
>Select room temperature
20 °C
System-specific settings to be made
only by the heating engineer.
Overview 2 - Displays
7Operating manual Remote control device VR 90 0020055329_00
1 Description of the device
The VR 90 remote control device is for individual
adjustment of a heating circuit within a boiler with
VRC 630. Independent of the use of this remote control
device, all settings for this heating circuit can be carried
out using the central controller.
Please note that only the following number of remote
control devices may be fitted in a control system to
ensure that the power supply in the system is secured:
- VRC 630 - maximum 8 remote control devices
2 Operation
All adjustments that need to be made for the connected
heating circuit can be carried out using the VR 90 remote
control device. It is equipped with a graphic display for
this purpose.
For ease of operation plain text is used. You can change
the display language, if necessary.
2.1 Display types
The VR 90 display varies, depending on the selection
(basic display, menu displays, displays on the code level).
The basic display shows the current operating condition
and the target room temperature of the heating circuit.
These settings can also be changed in the basic display.
The possible displays are shown as examples in the list
(Overview 2) on Page 6.
You can go to the menu displays, where settings relevant
to the user, such as heating times, set-back temperatures
and heating curves can be accessed, by turning the
left-hand dial
. These menus are indicated by a number
at the top right of the display (see Overview 1) on page 4.
The numbers make it easier to find individual menus
during programming.
Description of the device 1
Operation 2
Operating manual Remote control device VR 90 0020055329_008
You can go to the Code level by turning the dial
further.
The code level should only be accessed by the heating
engineer because of the types of parameters which are
displayed. A password is required to access the code to
protect the system from accidental changes to the
settings.
The following parameters can be displayed in the
individual menus, but cannot be changed if no password
is entered, i. e. access to the code level is disabled.
This level is indicated by numbers with a prefix C
(C1, C2, C3, ...).
Furthermore it is possible to display and select special
functions, such as the energy saving function and
heating engineer-specific service functions. The required
method of operation is described in Overview 1 on
page 4.
2.2 Dial
The remote control device is programmed only with two
dials (
and ), Overview 1 on page 4.
The dial
is used to select the parameter (by turning
and then pressing) and to adjust the parameter (by
turning).
The dial
is used to select the menu (by turning) and to
activate special functions (by pressing).
2.3 Operator guidance
The operating principle is based on the Vaillant “click
and turn” operating concept as well as a plain text
display for the unambiguous identification of the
programming performed. Overview 1 on page 4 shows
the basic structure of the display and the operating
procedure for the user or heating engineer.
The required operating steps are described in the
following. You can read off which menu you should
select from Table 2.1 to display or adjust the required
parameter.
2 Operation
9Operating manual Remote control device VR 90 0020055329_00
2.3.1 Menu selection
The first menu you see is the basic display on which the
current operating modes and the target room
temperature of the heating circuit are displayed.
You can move the cursor to the desired parameter by
turning the dial
. The cursor only goes to parameters
which can be changed on this menu display. At the same
time the changes which can be made by turning
the dial
, e.g "Select operating mode", appear in the line.
Select change in the parameter by pressing the dial
.
The parameter is changed immediately when you turn
the dial
and the changed value appears immediately on
the display of the controller and confirmed by pressing
the dial
.
2.3.2 Tables for the menu level
Please proceed in accordance with the description under
Section 2.3.1 to change the parameters. The editable
parameters are displayed in Table 2.1 on a grey
background for clarity. You can find explanations on the
parameters directly next to the individual displays and in
the “Overview of functions” chapter.
Operation 2
Operating manual Remote control device VR 90 0020055329_0010
Displayed menu Explanation and setting options
The following information is displayed on the basic display:
the current date and time, the outside temperature (if room modulation is activated),
the current room temperature, the current operating mode and the target room
temperature.
Each heating circuit or hot water circuit is controlled separately according to the
operating mode.
The heating, energy saving, auto, eco and off operating modes are available:
Auto The selected circuit is operated automatically between the desired set
point and set back temperatures according to the on and off time
programmes.
Eco The selected circuit is operated automatically between the desired set
point and fully off according to the on and off timer programmes. The
frost protection function will still activate if enabled.
Heating The selected circuit operates continuously ‘on’ at the desired ‘on’
temperature set point, regardless of the programmed times.
Energy sav The selected circuit operates continuously ‘on’ at the desired ‘off/setback’
temperature set point, regardless of the programme times.
Off The selected circuit is continually off except for when frost protection is
activated..
Table 2.1 Adjustable parameters
2 Operation
Fr 17.05.02
heat zone 1
15:37
> heating
- 15°C
22°C
>select operation mode
room temperature 21° C
11Operating manual Remote control device VR 90 0020055329_00
Displayed menu Explanation and setting options
A further adjustable parameter is the target room temperature, which can also be set
separately for each heating circuit. The target room temperature is taken into account
for the calculation of the heating curve. Increasing the target room temperature moves
the heating curve parallel on a 45° axis and the flow temperature is accordingly adjusted
by the control. The diagram on the left shows the relation between the target room
temperature and the heating curve.
In the basic data display you can set the language.
You can set the heating times for the heating circuit in the “Time programme”
display. Up to three heating times can be programmed per day or block. The control
operates according to the heating curve and the target room temperature. The heating
circuit has a default programme:
Mo. – Fr. 6:00 – 22:00; Sa. 7:30 – 23:30; Su. 7:30 – 22:00
Table 2.1 Adjustable parameters (continued)
Flow temperature
in °C
90
4.0 5.5 3.0 2.5 2.0
1.5
1.2
1.0
0.6
0.2
Heating curves
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
Outside temperature in °C
Basic data
Language > GB english
>Select language
1
heat zone 1 3
Time programme
>Mo-Fr
>Select day of week
1
2
3-
08:00
16:00--
14:00
22:00
Operation 2
Operating manual Remote control device VR 90 0020055329_0012
Displayed menu Explanation and setting options
It is possible to programme the heating circuit for two holiday time periods with date
entry.
In addition, here you can adjust the desired set-back temperature i.e. the value of the
heating circuit to which it should be set during the time of absence. After the holiday
time has elapsed, the controller automatically reverts to the previous operating mode.
The holiday programme can be activated only in auto and eco mode.
The set-back temperature and heating curve parameters can be set on the
heating circuit parameter display.
The set-back temperature is the temperature to which the heating is regulated
during the set-back period.
The heating curve represents the relation between the outside temperature and target
flow temperature. The room temperature of your system depends to a great extent on
the selection of the right heating curve. If the selected heating curve is too high, the
temperatures in the system will also be too high, resulting in higher energy consumption.
If the selected heating curve is too low, the desired temperature level may only be
reached after a while or not reached at all.
Table 2.1 Adjustable parameters (continued)
2 Operation
Holiday programming 4
for heating zone 1
Periods:
1
2
Target temperature
>18.07.03
16.09.03--
31.07.03
05.10.03
15°C
>Set starting day
heat zone 1 5
Parameter
Night set back temp.
Heating curve
> 15°C
0,90
>Select room temperature
Flow temperature
in °C
90
4.0 5.5 3.0 2.5 2.0
1.5
1.2
1.0
0.6
0.2
Heating curves
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
Outside tem
p
erature in °C
13Operating manual Remote control device VR 90 0020055329_00
Displayed menu Explanation and setting options
Code layer 7
enabled
Code number:
> 0 0 0 0
Standard code:
1 0 0 0
>Adjust numeric character
The last display of the user level is the entry of the code for the installer level. This
level is protected against accidental changes by an access code, since the settings
there should be made only by the engineer.
To view setting parameters without entering the code, you must press the dial
once.
You can then view all parameters of the code level by turning the dial but not change
them.
In the entire control system there is only one Code which can, if required, be changed in
the central controller.
Table 2.1 Adjustable parameters (continued)
Operation 2
Operating manual Remote control device VR 90 0020055329_0014
2.3.3 Special functions
Special functions can be selected only from the basic
display. To do so, press the dial. The following special
functions can be selected:
Energy saving function
Fr 17.05.02
Energy saving enabled
to
>18:30
>Select stop time
15:37 - 15°C
Room temperature 21°C
Press dial 1 x . The Energy saving function allows you to
lower the temperature for an adjustable period during the
heating times.
In addition, you must enter the time of day up to which
the Saving function (setting to set-back temperature) is to
be applicable. In order to set the time, push the dial
and
select the desired time (Hour:Minute) by turning. Push the
dial
again to accept the value.
Party function:
Fr 17.05.02
Room temperature
15:37 - 15°C
21°C
Party function enabled
Press dial 2 x.
The Party function allows you to continue the heating
time beyond the next switch-off time up to the next
heating start.
After 5 seconds the display reverts to the basic display.
After the function ends (time expired) or if the dial
is
pushed again, the basic display shows the original
operating mode of the heating circuit again.
2 Operation
15Operating manual Remote control device VR 90 0020055329_00
3 Error messages
Error messages are displayed on the central controller in
the event of malfunctions to the system. They are
displayed in plain text.
Please call your engineer for troubleshooting.
The telephone number will be displayed if the engineer
has programmed it.
4 Vaillant warranty
We only grant a Vaillant manufacturers warranty if
a suitably qualified engineer has installed the system in
accordance with Vaillant instructions. The system user will
be granted a warranty in accordance with the Vaillant
terms and conditions. All requests for work during the
guarantee period must be made to Vaillant Service
Solutions (0870 6060 777).
Error messages 3
Vaillant warranty 4
Installation manual remote control device VR 90 0020055329_0016
Installation instructions
1 General information
The assembly, electrical connection and the settings in
the control as well as the commissioning must be carried
out only by a suitably qualified heating engineer!
As an overview to install the VR 90 remote control device:
1. Preparation:
– Read the installation instructions.
– Check the scope of delivery.
2. Installation of the control:
– VR 90 remote control device
– Carry out the electrical installation.
CE label
The CE label shows that, in combination with Vaillant
boilers, the VC 90 remote control device meets the basic
requirements of the Directive on electromagnetic
compatibility (89/336/EEC directive of the council).
Intended use
The VR 90 remote control device is a state-of-the-art
appliance which has been manufactured in accordance
with recognised safety regulations. Nevertheless, there is
a risk of death or serious injury to the user or others or
of damage to the device and other property in the event
of improper use or use for which it is not intended.
The VR 90 remote control device is a system component
in the Bus modular controller VRC 630 for the regulation
of hot water central boilers with integrated hot water
preparation. Please note that a maximum of
8 remote control devices can be incorporated.
Any other or extended use is considered to be
improper. The manufacturer/supplier is not liable for any
resulting damage. The owner alone bears the risk.
Intended use also includes observance of the operating
and installation manual.
1 General information
17Installation manual remote control device VR 90 0020055329_00
2 Safety instructions and regulations
The control must be installed by a qualified engineer, who
is responsible for adhering to the prevailing standards
and regulations. We accept no liability for any damage
caused by failure to observe these instructions.
2.1 Safety instructions
e
Danger!
Risk of fatal electric shock from touching live
connections.
Before carrying out work on the control, switch
off the power supply and secure it against being
switched on again.
Only remove the control from the wall box or
from the plinth when it is potential free.
2.2 Regulations
The regulations of VDE and EVU must be observed during
the electrical installation.
Use standard wires for wiring.
Minimum cross-section of the wires: 0.75 mm
2
The following maximum wire lengths may not be
exceeded:
- Bus lines 300 m
Where lengths are greater than 10m, route the connection
cables carrying 230V separately from the sensor or bus
cables.
The control must only be installed in dry rooms.
A minimum distance of 25 cm between 230 V and sensor
or eBus cables must be maintained.
All wiring must be in accordance with Building
Regulations Part P and BS 7671 (IEE Wiring Regulations),
and must be carried out by a suitably qualified person.
3 Installation
The VR 90 can be installed on the wall in any room which
is included in the heating system.
3.1 Installation location
Please note that, when selecting the installation location,
you need to take into account whether room temperature
recording is required (selection of the room where
recording takes place).
Safety instructions and regulations 2
Installation 3
Installation manual remote control device VR 90 0020055329_0018
If recording is required, the remote control device must
be installed in such a way that perfect recording of the
room temperature is ensured (avoiding stagnant heat, not
installed on a cold wall, etc.).
The best place for installation is usually on an inside wall
of the main living room at an approximate height of 1.5 m.
The remote control device should be able to record the
circulating air, unhindered by furniture, curtains or other
objects. Choose a location where the remote control
device is not affected by draughts from doors or windows,
or by heat sources such as radiators, chimney walls,
television sets or direct sunlight. All radiator valves must
be fully open in the room in which the remote control
device is installed if room temperature modulation is
activated.
3.2 Installing the remote control
The connection to the boiler is via twin-core Bus cable
(eBus). Lay the electrical lines up to the boiler to your
advantage before installing the remote control device.
• Drill two fixing holes (3) diameter 6 mm as shown in
Fig. 3.1 and insert the plugs provided.
• Guide the connection cable through the duct (4).
• Attach the wall plinth to the wall with the two screws
provided.
3
1
2
4
Fig. 3.1 Installation as a remote control device
• Connect the connecting cable as shown in Fig. 4.1.
• Place the remote control device (1) on the mounting box
so that the pins on the back of the top part fit into the
recesses (2).
• Push the remote control device onto the mounting box
until it engages.
3 Installation
19Installation manual remote control device VR 90 0020055329_00
4 Electrical installation
The electrical connection may only be carried out by a
suitably qualified heating engineer.
e
Danger!
Risk of fatal electric shock through contact with
live connections!
Before carrying out work on the controller,
switch off the power supply and secure it against
being switched on again.
4.2 Connecting the remote control
The remote control device communicates with the central
controller via the eBus. They can be connected to any
interface in the system. It simply has to be ensured that
the bus interfaces are eventually connected to the central
controller.
The structure of the Vaillant system allows you to lay
the eBus from component to component. This means that
the wires can be swapped without impairing
communication.
DCF 0 AF
C1
eBus
Fig 4.1 Connecting the remote control
All eBus connector plugs are designed to allow you to
wire at least 2 x 0.75 mm
2
per connection terminal.
We therefore recommend using 2 x 0.75 mm
2
eBus lines.
Electrical installation 4
Installation manual remote control device VR 90 0020055329_0020
4.2 Setting Bus address
Communication within the system takes place via eBus. In
order to ensure perfect communication between all
components it is necessary to provide the remote control
device with an address which matches the heating circuit
to be controlled.
Correct addressing for the individual system components
can be seen in Table 4.1.
4
4.2 Setting Bus address
System components
Address of the
components
Bus address to be
set in the VR 90
Heating circuit 1
VRC 630
1
Heating circuit 2
VRC 630
2
Heating circuit 3
VRC 630
3
VR 60, Address 4 HC 4
HC 5
4
5
VR 60, Address 6 HC 6
HC 7
6
7
VR 60, Address 8 HC 8 8
Table 4.1 Bus addresses to be set
4 Electrical installation
21Installation manual remote control device VR 90 0020055329_00
5 Start-up
Start-up is carried out in conjunction with the start-up of
the central controller. Please proceed in accordance with
the instructions in the manual for the central controller
VRC 630.
5.1 Setting heating circuit parameters
Setting the heating circuit parameters takes place in the
Code level. You can also call up various system values
here. The code level is protected against unauthorised
access by a service code and is enabled for 60 minutes
after entering the right code.
You can access the code level by turning the dial
on the
left until the “Code layer enabled” menu is reached.
In this menu you must enter the code which allows you
to change the following heating circuit parameters. If you
do not enter a Code the parameters in the following
menus are displayed, but you cannot change them.
The standard Code setting is 1 0 0 0.
It can only be changed in the central control unit of the
VRC 630.
The operation of the Code level is the same as
that of the user level. You can select the parameters
also by turning and pushing the dial
.
All accessible Code menus and their parameters
can be seen in Table 5.1.
Table 5.1 lists all the menus accessible in the Code level,
together with the parameters or displayed values. The
editable parameters are displayed on a grey background.
Further information on the individual functions can be
found in the overview of functions in the appendix of
this document.
Start-up 5
Installation manual remote control device VR 90 0020055329_0022
5 Start-up
Displayed text Adjustable parameters Setting range Default setting
Code layer 7
enabled
Code number:
> 0 0 0 0
Standard code:
1 0 0 0
>Adjust numeric character
Code Number 0000 - 9999 1000
heat zone 1 C2
Parameter
Type: heating circuit
Night set back temp.
Heating curve
Max limit outs. temp
Pump delay time
Minimum temp.
Maximum temp.
Max. pre-heat
Switch-on room temp.
Remote control
Target flow temp.
Current flow temp.
Status of pump
>select Night set back temp.
> 15°C
0,90
20°C
0
15°C
75°C
0 h
none
Yes
55°C
45°C
Set-back temperature
Heating curve
Maximum limit outside
temperature
Minimum temperature
Maximum temperature
Max. pre-warm-up time
Switch-on room temperature
5 - 30 °C
0.2 - 4
5 - 50 °C
15 - 90 °C
15 - 90 °C
0 - 5 h
none/intervention
15 °C
1.2
22 °C
15 °C
90 °C
0
none
Table 5.1 Settings on the code level
23Installation manual remote control device VR 90 0020055329_00
Start-up 5
Displayed text Adjustable parameters Setting range Default setting
heat zone 2-max heat zone 15 C2
Parameter
Type: Mixing circuit
Night set back temp.
Heating curve
Max limit outs. temp
Minimum temp.
Maximum temp.
Max. pre-heat
Switch-on room temp.
Remote control
Target flow temp.
Current flow temp.
Status of pump
Status hydr. mixer
>select Night set back temp.
> 15°C
0,90
20°C
15°C
75°C
0 h
none
Yes
55°C
45°C
OFF
OFF
Set-back temperature
Heating curve
Maximum limit outside
temperature
Minimum temperature
Maximum temperature
Max. pre-warm-up time
Switch-on room temperature
5 - 30 °C
0.2 - 4
5 - 50 °C
15 - 90 °C
15 - 90 °C
0 - 5 h
none/intervention
15 °C
1.2
22 °C
15 °C
75 °C
0
none
Tool C12
Temperature correction
Current room temp.
0,0 K
>Select correction value
Temperature correction:
Current room temperature -3 ... +3 K O K
Table 5.1 Settings on the code level (continued)
Installation manual remote control device VR 90 0020055329_0024
5 Start-up
Displayed text Adjustable parameters Setting range Default setting
Software release C15
FBG comfort 01 1.05
Table 5.1 Settings on the code level (continued)
25Installation manual remote control device VR 90 0020055329_00
Start-up 5
Error codes 6
5.2 Handing over the control to the owner
The user must be trained in the handling and function
of his control.
• Hand over the manuals and documents intended for the
owner.
• Go through the operating manual with the owner and
answer any questions.
• Draw special attention to the safety instructions which
the owner must follow.
• Tell the owner to keep the manuals nearby the control.
6 Error codes
The remote control device can display specific error
messages. The date and time are shown for each error
message.
Fault message
Phone No:
Fault Number
Fault code
> 1
1
19.07.02 16:55
VR 60 Address 4
Not achievable
A list of the error codes can be found in Table 6.1.
h
Note!
Please observe the diagnostics instructions for
the heating appliance.
To display the last error in the system, you must turn
dial
anticlockwise as far as it will go. In this way you can
access the “Fault message” menu, where there is a list of
the last messages reported in the system.
Installation manual remote control device VR 90 0020055329_0026
Display Meaning / Explanation
Fault message
Phone No:
Fault Number
Fault code
> 1
1
19.07.02 16:55
VR 60 address 3
Not achievable
There is no communication with the VR 60 mixer module with the set bus address. The
affected components as well as the inaccessible address are always displayed first in this
error message, along with the information that communication has been interrupted.
The cause for this can be, for example, that the bus cable is not connected, or that the
voltage supply is not available, or else that the components are defective.
Fault message
Phone No:
Fault Number
Fault code
> 1
1
19.07.02 16:55
VRC 630
Not achievable
Base controller not accessible.
Fault message
Phone No:
Fault Number
Fault code
> 1
7
19.07.02 16:55
heat zone 1 is not configured as
a heat zone
Incorrect configuration of the heating circuit.
Table 6.1 List of error codes
6 Error codes
27Installation manual remote control device VR 90 0020055329_00
7 Overview of functions
Function Meaning / Explanation
Set-back temperature The set-back temperature is the temperature to which the heating is regulated
during the set-back period. It can be set separately for each heating circuit.
Maximum limit outside temperature The maximum limit outside temperature is the outside temperature value at which the
weather compensated heating shutdown (automatic shutdown in summer) takes effect.
The maximum outside temperature limit can be set separately for each heating circuit
within a range of 5 to 50 °C. The default setting value is 22 °C.
Flow temperature
in °C
90
4.0 5.5 3.0 2.5 2.0
1.5
1.2
1.0
0.6
0.2
Heating curves
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
Outside tem
p
erature in °C
The heating curve represents the ratio between the outside temperature and target flow
temperature. The setting is made separately for each heating circuit.
Table 7.1 Overview of functions
Overview of functions 7
Installation manual remote control device VR 90 0020055329_0028
Function Meaning / Explanation
Maximum preheating With this function the activation of the heating circuit before the heating window is made
possible, with the aim of accessing the set day value at the beginning of the heating
window. The function is only performed for the first heating window of the day. The
beginning of heating is established, depending on the outside temperature:
Preheating period setting parameter: 0 ... 5 h, basic value 0 h
Influence of outside temperature: OT ≤ –20 °C : set preheating period
OT ≥ +20 °C : no preheating period
The period of time is calculated linearly between the two reference values.
If the preheating has been started it is only ended when the time window is completed
(no ending if, in the meantime, the outside temperature increases).
Maximum temperature of heating circuit The max. flow temperature of the heating circuit is adjustable within
the range 15 ... 90 °C.
Minimum temperature of heating circuit The min. flow temperature of the heating circuit is adjustable within
the range 15 ... 90 °C.
Table 7.1 Overview of functions (continued)
7 Overview of functions
29Installation manual remote control device VR 90 0020055329_00
Function Meaning / Explanation
Switch-on room temperature The utilisation of the room sensor in the remote control device (RCD) is adjustable:
none, intervention, (factory setting: none).
The switch-on room temperature is used to include the current room temperature in a reference room in
the calculation of the flow temperature. The room temperature sensor of the assigned RCD is used if the
function is active.
Current room temperature
correction
The displayed value of room temperature can, if required, be shifted upwards or downwards by +/-3 °C.
Target inlet temperature Represents the inlet temperature in a heating circuit calculated by the controller on the basis of the
pre-set parameters.
Actual inlet temperature The actual inlet temperature in a heating circuit.
Table 7.1 Overview of functions (continued)
Overview of functions 7
Installation manual remote control device VR 90 0020055329_0030
8 Technical data
Designation Units VR 90
Operating voltage V 9 .. 24
Shortest switching interval
Power reserve
Maximum permissible ambient temperature
mins
mins
°C
10
15
40
Minimum cross section of the connection wires mm
2
0.75
Dimensions of the wall box
Height
Width
Depth
mm
mm
mm
97
146
32
Level of protection
Protection class for controller
IP 30
III
Table 8.1 Technical data
8 Technical data
31Installation manual remote control device VR 90 0020055329_00
Vaillant Service 9
9 Vaillant Service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance
Agreement. Please contact Vaillant Service Solutions
(08708 503072) for further details.
0020055329_00 GB 072007
Loading...