Vaillant VRC 630 User manual

GB
VRC 630/3

For the operator
Operating Manual
VRC 630
Bus modular control system
for weather-controlled heating control

Contents
2Operating manual VRC 630 0020095108_00
Contents
1 Notes on the documentation ............................3
1.1 Storing the documents..............................................3
1.2 Symbols used............................................................... 3
1.3 Print styles and identifiers.......................................3
1.4 Applicability of the manual...................................... 3
1.5 Identification plate ..................................................... 3
1.6 CE label .........................................................................3
1.7 Name of the product .................................................3
2 Safety.................................................................. 4
2.1 Safety and warning information.............................4
2.1.1 Classification of warnings ........................................4
2.1.2 Structure of warnings ...............................................4
2.2 Intended Use................................................................4
2.3 General safety instructions......................................4
2.4 Directives, laws and standards ...............................5
3 Description of the device.................................. 6
3.1 Construction and function .......................................6
3.2 System overview ........................................................7
3.2 Overview of functions ...............................................8
3.3 Operating modes ........................................................8
3.4 Description of important functions........................9
3.5 Overview of controls ................................................12
3.6 Operator guidance ....................................................12
3.7 Operating levels in the controller .........................14
3.8 Menu types..................................................................14
3.9 Menus in different operating situations ..............15
3.10 Overview of settable parameters..........................16
4 Start-up ............................................................. 17
4.1 Instruction by the expert technician ....................17
4.2 Switching the controller On/Off ............................17
5 Operation ...........................................................18
5.1 Operating the controller..........................................18
5.1.1 Selecting the menu ...................................................18
5.1.2 Selecting and marking parameters.......................18
5.1.3 Setting parameter values........................................18
5.1.4 Calling up special functions ....................................18
5.2 Setting parameters in the basic display..............19
5.2.1 Setting the operating mode....................................19
5.2.2 Setting the target room temperature using
heating circuit HK1 as an example ...................... 20
5.3 Setting the basic data ............................................22
5.3.1 Calling up Menu 1..................................................22
5.3.2 Setting the date ........................................................22
5.3.3 Setting the day of the week.................................. 24
5.3.4 Setting the time ....................................................... 24
5.3.5 Activating the summer/winter
time changeover.......................................................26
5.4 Setting the timer programmes ............................27
5.4.1 Setting time windows ..............................................27
5.4.2 Setting the start and end times for
time window 1 ........................................................... 28
5.5 Setting the holiday programme ...........................29
5.5.1 Setting time periods ............................................... 30
5.5.2 Setting the target temperature........................... 30
5.6 Setting the night set back temperature
and the heating curve ........................................... 30
5.6.1 Setting the night set back temperature ........... 30
5.6.1 Setting the heating curve ......................................31
5.7 Setting the
hot water temperature .....................32
5.8 Changing the names of the heating circuits .....32
5.9 Viewing the parameters in the Installer level...35
5.10 Using special functions ...........................................36
5.10.1 Activating the Energy-saving function ...............36
5.10.2 Activating the Advance function..........................37
5.10.3 Activating the One-time cylinder charging
function.......................................................................37
5.11 Service functions (only for the expert
technician)................................................................. 38
5.12 Ensuring protection from frost............................ 38
5.13 Cleaning and caring for the controller............... 38
5.14 Data transfer ............................................................ 38
6 Troubleshooting ............................................... 39
6.1 Service message.......................................................39
6.2 Error messages.........................................................39
6.3 Detecting and rectifying malfunctions............... 40
7 Taking out of service .......................................41
7.1 Shutting down the heating temporarily ..............41
7.2 Switching off the controller temporarily.............41
8 Recycling and disposal....................................42
9 Energy saving tips...........................................43
10 Warranty and Customer Service...................45
10.1 Vaillant warranty..................................................... 45
10.2 Vaillant Service ........................................................ 45
11 Technical data..................................................46
11.1 VRC 630..................................................................... 46
11.2 Default settings.........................................................47
Glossary .........................................................................48
Index ...........................................................................51

1 Notes on the documentation
The following instructions are intended to guide you
throughout the entire documentation.
Other documents are valid in connection with this ope-
rating manual.
We accept no liability for any damage caused by non-
observance of this manual.
Other applicable documents
When operating the VRC 630 controller, always take
note of all operating instructions that accompany the
other components in your heating installation.
1.1 Storing the documents
Please keep this operating manual and all other applica-
ble documents in good condition, so that they are
available when required.
1.2 Symbols used
The symbols used in the text are explained below:
aSymbol that denotes danger,
Imminent danger to life
Danger of severe personal injury
Danger of slight personal injury
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–
–
eSymbol that denotes danger,
risk of death from electric shock–
bSymbol that denotes danger,
Risk of material damage
Risk of damage to the environment
–
–
i
Symbol that denotes useful tips and
information
>Symbol for a required action
1.3 Print styles and identifiers
Bold Bold text denotes important information,
proper names and identifiers (parameters,
menu names, operating modes, cross-refe-
rences)
Example: Operating mode Auto
Highlighting A value is highlighted when it is shown in
the display on a dark background.
>
1.4 Applicability of the manual
This operating manual applies exclusively to equipment
with the following article numbers:
Type designation Article No. External
sensor
VRC 630 0020092435
0020092436 VRC DCF
VRC 630 0020092437
0020092438
0020092439
0020092440
0020092430
VRC 693
Table 1.1 Type summary
The article number of the unit can be found on the iden-
tification plate.
1.5 Identification plate
The identification plate is readily visible on the left side
of the controller base.
21092600200285150907011320N4
VRC 630/3
1 2
230V~
3
4 VA
4 5
Fig. 1.1 Identification plate
Key
1 EAN code
2 Unit designation
3 Operating voltage
4 Power consumption
5 CE label
1.6 CE label
The CE mark documents compliance of the
VRC 630 controller with the fundamental
requirements of the relevant directives.
1.7 Name of the product
The VRC 630 controller is hereafter described as the
controller.
Notes on the documentation 1
Operating manual VRC 630 0020095108_00 3

2 Safety
2.1 Safety and warning information
When operating the controller, take account of the
general safety instructions and the warning notes
that appear before all of the actions.
2.1.1 Classification of warnings
The warning notes are classified in accordance with the
severity of the possible danger using the following war-
ning signs and signal words:
Warning
sign Signal word Explanation
aDanger! Immediate danger to life
or danger of severe
personal injury
eDanger! Danger of death from elec-
tric shock
aWarning! Danger of minor personal
injury
bCaution! Risk of material or envi-
ronmental damage
Table 2.1 Warning signs and their meanings
2.1.2 Structure of warnings
Warning signs are identified by an upper and lower
separating line and are laid out according to the fol-
lowing basic principle:
aSignal word!
Type and source of danger!
Explanation of the type and source of danger
Measures for averting the danger
>
>
2.2 Intended Use
The VRC 630 controller is a state-of-the-art appliance
manufactured in accordance with recognised safety
regulations.
Even so, in the event of inappropriate or non-intended
use, impairment of the device and other material assets
can arise.
The VRC 630 controller is used for weather-compensa-
ted and time-dependent control of heating installations
with hot water generation.
Any other use or use beyond that specified shall be con-
sidered as improper use. The manufacturer/supplier is
not liable for any resulting damage. The owner alone
bears any risk.
Intended use also includes observing the operating and
installation manuals and all other applicable documents.
2.3 General safety instructions
Qualification of the expert technician
The installation of the controller may only be carried
out by an expert technician, approved at the time by the
Health and Safety Executive. This person is also respon-
sible for the proper installation and start-up.
Preventing illness
The controller is furnished with an anti-Legionella func-
tion to protect from infection by germs (Legionella).
Your expert technician will set the anti-Legionella func-
tion when installing the controller.
Ask your expert technician about the mode of opera-
tion of the anti-Legionella function.
>
2 Safety
4Operating manual VRC 630 0020095108_00

Preventing the risk of scalding
There is a danger of scalding at the hot water draw-off
points if the temperatures are greater than 60 °C.
Young children and elderly persons are particularly at
risk, even at lower temperatures.
Select the hot water temperature so that nobody is
at risk.
When the anti-Legionella function is active, the DHW
cylinder is heated to over 65 °C for at least one hour.
To protect yourself from scalding,
ask your expert technician whether the anti-Legio-
nella function is active.
ask your expert technician when the anti-Legionella
function starts.
ask your expert technician if he has installed a cold
water mixer valve as protection from scalding.
Preventing material damage
Never interfere or tamper with the boiler or other
parts of the heating installation.
Never attempt to carry out maintenance work on the
controller yourself.
Do not damage or remove seals on components. Only
suitably qualified expert technicians or our customer
service may alter sealed components.
Always refer to a qualified expert technician in the
event of error messages on the unit.
Preventing error function
Only operate the heating installation when it is in a
technically perfect condition.
Do not remove or bridge out any safety or monitoring
devices.
Do not override any safety or monitoring devices.
Have any faults or damage that affect safety rectified
promptly by your expert technician.
iWhen thermostat control is active, all the
radiator valves in the room in which the con-
troller is installed must be fully open.
Make sure that:
the controller is not obstructed by furniture, curtains
or other objects.
all the radiator valves in the room in which the con-
troller is installed are fully open.
Ask your expert technician whether the thermostat
control is active or check in Menu C2 in the Expert
Technician level (¬ Chap. 5.9).
>
>
>
>
>
>
>
>
>
>
>
>
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>
Preventing frost damage
If there is a power cut, or if the room temperature is set
too low in individual rooms, it can not be ruled out that
sections of the heating system might be damaged by
frost.
If you are going to be away during a cold period,
make sure the heating installation remains in opera-
tion and that the rooms are sufficiently heated.
Always observe the information on frost protection
(¬ Chap. 5.12).
2.4 Directives, laws and standards
Controller and controller installation
EN 60335–2–21
Safety of household and similar electrical appliances;
Part 2: Particular requirements for storage water hea-
ters (domestic hot water cylinders and hot water boi-
lers) (IEC 335–2–21: 1989 and supplements 1; 1990 and 2;
1990, modified).
Any telecommunications equipment connected must
conform to the following standards: IEC 62151, or
EN 41003 and EN 60950-1: 2006 Section 6.3.
>
>
Safety 2
Operating manual VRC 630 0020095108_00 5

3 Description of the device
3.1 Construction and function
The controller is used for weather-controlled heating
control with hot water generation.
The controller can control the following system circuits:
one DHW cylinder,
a maximum of two modulating boilers without eBUS
or
one modulating boiler with eBUS
or alternatively one 2-stage boiler,
two controlled circuits and
one uncontrolled circuit
To expand the central heating installation, up to six
additional mixer circuit modules (accessory), each with
two mixer circuits, can be connected. This means: the
controller can control a maximum of 15 circuits.
To operate them more conveniently, remote control
devices can be connected for the first eight heating cir-
cuits.
Each mixer circuit can, as required, be switched
between:
Heating circuit (radiator circuit, underfloor circuit,
etc.)
Fixed value control
Increase in return flow,
Hot water circuit (in addition to the integrated hot
water circuit).
Several modulating Vaillant boilers or one and two-
stage heating appliances can be connected using modu-
lating bus couplers (accessory).
The maximum number of boilers/heaters that can be
connected depends on the bus coupler installed.
Bus coupler Maximum number of boilers/heaters
that can be connected
VR 30, VR 32 8
VR 31 6
Table 3.1 Maximum number of boilers/heaters that can be
connected
With the remote telephone contact connection (poten-
tial-free contact input), the operating mode of the con-
troller can be changed from any location by telephone
via the teleSWITCH telephone remote control switch.
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3 Description of the device
6Operating manual VRC 630 0020095108_00

3.2 System overview
The basic configuration of the controller is delivered as
a kit. This kit consists of:
Quantity Component
1 VRC 630 controller with wall mount
4 VR 10 standard sensor
1 VRC DCF or VRC 693 external sensor
depending on national variant (¬ Table 1.1)
Table 3.2 Scope of delivery of the VRC 630 kit
In the basic version:
one DHW cylinder,
a maximum of two modulating boilers without eBUS
or
one modulating boiler with eBUS
or alternatively one 2-stage boiler,
two controlled circuits and
one uncontrolled circuit
can be controlled.
VRC DCF
VR 90
VR 60
VRC 630
Fig. 3.1 System Overview
Key
VR 90 remote control unit
VR 60 mixer module
VRC DCF external sensor
If the installation is to be expanded with, e.g., further
heating circuits, then additional components can be
integrated into the complex system of the heating
installation (¬ Fig. 3.1).
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–
–
–
Description of the device 3
Operating manual VRC 630 0020095108_00 7

3.3 Overview of functions
The controller provides the following options for con-
trolling your heating installation and hot water genera-
tion:
Off
Heating installation switched off or hot water genera-
tion with active frost protection
One-time Cylinder Charging
Allows the DHW cylinder to charge up once, indepen-
dently of the current timer programme
Holiday function/Holiday programme
Individual control of the room temperature during your
absence;
only in the Auto and Eco operating modes
Frost protection function
Protection from frost damage in the Off and Eco
modes (outside the time window);
The boiler must remain switched on
Heating curve
The basis of weather compensation; improves the mat-
ching of the heating output to the outside temperatures
Advance
Allows you to continue the heating and hot water times
beyond the next switch-off time up to the next heating
start.
Energy saving function
Allows the target room temperature to be reduced for a
set period
Weather compensation
Automatic changing of the heating water temperature
(flow temperature) depending on the outside tempera-
ture by means of a heating curve
Time window
Individually settable time settings for the heating instal-
lation, the hot water generation and the operation of a
circulation pump
3.4 Operating modes
By setting the operating mode, you determine the con-
ditions under which the assigned heating circuit or hot
water circuit will be controlled.
CH circuit
Operating
mode Effect
Auto The heating circuit is operated alternately in Hea-
ting and Energy Saving mode according to a pre-
set timer programme.
Eco The heating circuit is operated alternately in Hea-
ting and Off mode according to a pre-set timer
programme.
The
heating circuit is switched off during the set-back
period if the frost protection function (depending
on the outside temperature) is not activated.
The frost protection is effective outside the set
time window (¬ Chap. 5.2).
Heating The heating is regulated at the daytime set room
temperature.
Energy save The heating circuit is regulated at the nighttime
set room temperature.
Off The heating circuit is off if the frost protection
function (depending on the external temperature)
is not activated.
Symbol Meaning
If the symbol is displayed after the Eco or Auto
mode, a time window is active. The heating instal-
lation is producing heat.
If the symbol is displayed after the
mode, no time window is active.
The heating installation is in set-back mode.
Table 3.3 Operating modes for heating circuits
Circulation circuit and hot water circuit
Operating
mode Effect
Auto The commands for charging the DHW cylinder or
for enabling the circulation pump are given accor-
ding to a preset timer programme.
On The charging of the DHW cylinder is constantly
enabled. When required, the cylinder is recharged
immediately. The circulation pump is constantly in
operation.
Off No charging of the DHW cylinder takes place. The
circulation pump is not operating.
Exception:If the temperature in the DHW cylinder
falls below 12 °C, the cylinder is reheated to 17 °C
(frost protection).
Table 3.4 Operating modes for the circulation circuit and the
hot water circuit
iIf Holiday is displayed instead of the opera-
ting mode, the holiday programme is active.
When the holiday programme is active, the
operating mode cannot be set. It will be
necessary to end the holiday programme to
do this.
3 Description of the device
8Operating manual VRC 630 0020095108_00

3.4 Description of important functions
Time window
04:00 16:0008:00 12:00 20:00
15 °
20 °
25 °
Target room temperature
Hour
Night set back temp.
Time slot 1 Time slot 2 Time slot 3
Fig. 3.2 Automatic heating operation: Example of setting the
target room temperatures for different times of day
In Fig. 3.2 you can see a section from a timer pro-
gramme. The time of day is given on the horizontal axis
and the target room temperature is on the vertical axis.
The diagram describes the following programme pro-
gression:
1 Until 06.00 hrs. a room temperature of 15 °C
(night set back temperature) is in effect.
2 The first time window starts at 06.00 hrs.:
From this point onwards a target room tempera-
ture of 21 °C is effective.
3 The first time window ends at 09.00 hrs.:
From this point onwards a target room tempera-
ture of 15 °C is effective.
4 A further two time windows of 21 °C follow.
The way in which the time windows influence the
heating control can be simply explained as follows:
When you operate your heating installation in the Auto
mode, the controller activates the preset time windows
in which your installation heats the connected rooms to
a defined temperature (¬ Target room temperature).
Outside these time windows, the heating installation is
controlled so that the connected rooms cool down to a
defined temperature (¬ Night set back temp). When
the night set back temperature is reached, the control-
ler ensures that the heating installation maintains this
temperature until the start of the next time window.
Thus any further cooling of the apartment is prevented.
iGet your expert technician to advise you
about the optimum setting of the heating
curve, as the measured outside temperature
and the preset heating curve will also affect
the control of the heating.
Description of the device 3
Operating manual VRC 630 0020095108_00 9

You have two options for defining the days for which
your time windows should apply:
1st option
You can enter time windows for individual days.
Example:
Mon 09.00 - 12.00 hrs.
Tue 10.00 - 12.00 hrs.
2nd option
You can combine several days into blocks.
Example:
Mon-Fri 09.00 - 12.00 hrs.
Sat-Sun 12.00 - 15.00 hrs.
Mon-Sun 10.00 - 12.00 hrs.
You can define up to three time windows for each
option.
You can control the hot water temperature in a con-
nected DHW cylinder in the same way using the control-
ler: The time windows you define specify when the hot
water at your desired temperature is available.
However there is no night set back temperature for the
hot water generation.Hot water generation is switched
off at the end of a time window.
Heating curve
The heating temperature is controlled indirectly by
means of a heating curve. The heating curve shows the
relationship between the outside temperature and the
flow temperature.
The flow temperature is the temperature of the heating
water as it leaves the boiler.
You can set the heating curve individually for each hea-
ting circuit.
You have the option of selecting various heating curves
to match the control system optimally to your apart-
ment and to the heating installation.
Example of a heating curve
Max Flow Setpoint.
Outside temperature in °C
in °C
90
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
1.5
4.0 3.5 3.0 2.5 2.0
Heating curves
1.2
1.0
0.6
0.2
Fig. 3.3 Diagram with heating curves
Example: If heating curve 1.5 is selected, a flow
temperature of 75 °C is required for an outside tempe-
rature of -15 °C.
Max Flow Setpoint.
Outside temperature in °C
in °C
90
80
70
60
50
40
30
15
Axis a
182022
10 5 0 -5 -10 -15 -20
1.5
Fig. 3.4 Parallel offsetting of the heating curve
If heating curve 1.5 is selected and 22 °C rather than 20
°C is specified as the room target temperature, the hea-
ting curve is displaced as shown in Fig. 3.4. The heating
curve is displaced in parallel along the 45° axis accor-
ding to the value of the room target temperature. This
means that when the outside temperature is 0 °C, the
controller provides a flow temperature of 67 °C.
iYour expert technician will have made the
required basic setting of the heating curve
while installing the heating
system.
3 Description of the device
10 Operating manual VRC 630 0020095108_00

Frost protection function
The controller is equipped with a frost protection func-
tion (depends on the outside temperature). The frost
protection function ensures that the heating installation
is protected from frost in the Off and Eco (outside the
time windows) modes.
If the Eco mode is set and the frost protection function
(dependent on the outside temperature) is not activa-
ted, then the heating circuit will be switched off during
the set-back period.
The preset (night) set back temperature is applied auto-
matically for each heating circuit if the outside tempera-
ture falls below +3 °C.
Description of the device 3
Operating manual VRC 630 0020095108_00 11

3.6 Overview of controls
All the settings that are required for the heating instal-
lation are made on the controller.
The controller is equipped with a graphic display. Plain
text messages simplify operation.
Basic data
Date
>Set day
Time 15:37
30.10.09
Day
Summer/Winter time Off
Fr
1
4
1
2
3
Fig. 3.5 Overview of controls
Key
1 Menu number
2 Right hand dial,
Pick out a parameter (turn); Highlight the parameter (press)
3 Left hand dial,
Select menu (turn); Activate special function (press)
4 Menu name
3.7 Operator guidance
You can operate the controller with the two and
dials (¬ Fig. 3.5):
When you press the right hand dial, you highlight or
save a parameter.
When you turn the right hand dial, you pick out a para-
meter.
When you turn the left hand dial, you select a menu.
When you press the left hand dial, you activate the
special functions (¬ Chap. 5.10).
A plain text display facilitates operation for you and
identifies menus and parameters clearly.
3 Description of the device
12 Operating manual VRC 630 0020095108_00

Wed 02.12.09 15:43 -3 °C
HK1 Heating 22°C
Storey 1 Eco 20°C
Storey 2 Auto 22°C
Cylinder Auto 60°C
VRC 630
Wed 02.12.09 15:43 -3 °C
Energy saving enabled
to 18:30
VRC 630
Wed 02.12.09 15:43 -3 °C
Override function enabled
VRC 630
Basic data 1
Date 02 . 12 . 09
Day We
Time 14 : 08
Summer/Winter time Auto
>Set day
Wed 02.12.09 15:43 -3 °C
one-time
cylinder charging enabled
VRC 630
HK1 3
Time programme
Mon.-Fri.
1 6:00 – 22:00
2 7:30 – 23:30
3 7:30 – 23:30
>Select weekday/block Depending on the system
configuration, you can call
up and set various para-
meter menus for HK1...
HK15.
HK3 3
Time programme
Mon.-Fri.
1 6:00 – 22:00
2 7:30 – 23:30
3 7:30 – 23:30
>Select weekday/block
Holiday programming 4
for whole system
Periods
1 30 . 02 . 09 – 20 . 03 . 09
2 05 . 05. 09 – 22 . 05. 09
Target temperature 15°C
>Set start day
Domestic hot water 5
Parameters
Target Cyl. temp. 60°C
>Select target temperature
HK1 5
Parameters
Night set back temp 15°C
Heating curve 1,2
>Select target room temperature
Name 7
change
HK1 : HK1
HK2 : HK2
HK3 : HK3
> select
Code level 8
enabled
Code number:
0 0 0 0
>Adjust numeric character
Fig. 3.6 Menu structure of Operator level
Description of the device 3
Operating manual VRC 630 0020095108_00 13

3.8 Operating levels in the controller
The controller has two operating levels: the Operator
level and the Installer level. Each operating level con-
tains several menus where the associated parameters
can be displayed, set and changed.
iThe number of menus displayed depends on
the configuration of your heating installation.
For this reason it is possible that there are
more menus described in this manual than
your controller displays.
Operator level
The operator level is the operating level for the user
and displays the basic parameters that you can adapt to
your particular needs during normal operation without
any special prior knowledge.
The operator level comprises the basic display, Menus
1... 8and the menus for the special functions
(Energy-saving function, Override function, One-time
cylinder charging).
Installer level
The Installer level is the operating level for the expert
technician. The system-specific parameters, with which
the heating engineer configures and optimises the hea-
ting installation, are set in the Installer level. These sys-
tem-specific parameters may only be set and changed
by an expert technician. The Installer level is therefore
protected by an access code. The system-specific para-
meters are thus protected from unintentional adjust-
ment.
The Installer level comprises Menus C1 to C15, the
menus for the Installation Assistant (A1 to A8) and the
menus for the service functions (e.g. maximum output
function).
3.9 Menu types
The controller has different menu types:
the basic display,
a menu in the Operator level or
a menu in the Installer level
(Examples: ¬ Chap. 3.10).
In the basic display you can view and set the current
operating mode and the target room temperatures for
the individual heating circuits.
The menus in the Operator level are identified with a
number at the top right (e.g. 1). This number makes it
easier for you to find the menus.
In the menus in the Operator level you can, for example,
set the room temperature, time windows, night set back
temperatures and heating curves entirely to your indivi-
dual requirements.
The menus in the Installer level are identified with a let-
ter and a number at the top right (e.g. C2). You can only
view the system-specific parameters in the Installer
level menus. (¬ Chap. 5.9).
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3 Description of the device
14 Operating manual VRC 630 0020095108_00

3.10 Menus in different operating situations
In the Operator level
Wed 02.12.09 15:43 -3°C
HK1 Auto 20 °C
HK2 Auto 20 °C
HK3 Auto 20 °C
HK4 Eco 22 °C
VRC 630 
Example:Basic display
The basic display shows the current operating mode and the
required room temperature for each heating circuit and allows
the operating mode of each heating circuit to be changed quik-
kly. If more than two heating circuits are connected, these are
displayed in sequence when you turn the right hand
dial.
The basic data consisting of day of the week, date, time of day
and outside temperature are always shown in the upper area of
the display. If an error occurs, it is displayed in plain text in the
second line. Chapter 5.3 explains how to set the basic data.
Special operating modes and service functions can also be called
up in the basic display.
The arrow at the bottom right indicates that other modules
are connected to the controller.
When you want to check or set the operating mode or
temperature of these modules, simply turn the right hand dial to
access the next display lines.
Basic data 1
Date 02 . 12 . 09
Day We
Time 14 : 08
Summer/Winter time Off
>Set day
Example: Menu 1
You can make all the relevant settings for the heating installa-
tion on the Operator level in Menus ( 1to 7).
The menu name and the menu number (in the example 1) are
displayed in the upper area. The numbers make it easier to find
individual menus during programming.
Wed 02.12.09 15:37 - 15 °C
Energy saving enabled
to 18:30
VRC 630
Example:Special functions
Special functions temporarily change the operating mode of the
heating circuit and are ended automatically.
Special functions can only be called up from the basic display.
In the Installer level
HK1 C2
Parameters
Type of burner circuit
Night set back temp 15°C
Heating curve 0.90
Max limit outside temp. 20°C
>Select target room temperature
Example: Menu C2
Menus C1 to C15 are where the system-specific parameters,
which only the heating engineer can set, are located.
These menus are identified by a 'C' and a number at the top right
of the display.
You can call up the menus in the Installer level and view the
parameters, but you cannot alter them.
Table 3.5 Menu types
The settable parameters are displayed on a grey back-
ground.
Description of the device 3
Operating manual VRC 630 0020095108_00 15

3.11 Overview of settable parameters
Menu Menu
name Settable operating values Remarks Units Min. value Max. value Increment/ selection
option
Default
setting
1 Basic data
(¬ Chap. 5.3)Date Day
Time
Select day, month, year;
select hour, minutes
Summer/Winter
changeover Auto/Off Off
3 Time programmes
(¬ Chap. 5.4)Day/ block Select weekday/block of weekdays (e.g. Mon-Fri)
1 Start/End time
2
3
Three time windows availa-
ble per day/block of days Hours/ minutes 10 min
4 Holiday program-
ming
for whole system
(¬ Chap. 5.5)
Holiday period Set start day, month, year;
Set end day, month, year
Holiday target value
for heating Set target room tempera- ture for the holiday period °C 5 30 115
5 HK1
parameters
(¬ Chap. 5.6)
Night set back temp Specify set-back tempera-
ture for periods between
the time windows;
when frost protection func-
tion is set, the night set
back temperature is auto-
matically 5 °C;
night set back temperature
is not displayed
°C 5 30 1 15
Heating curve Control flow temperature
dependent on outside tem-
perature;
various heating curves can
be selected
0.1 4 0.05-0.1 1.2
Domestic hot water
parameters
(¬ Chap. 5.7)
Target hot water Set target temperature for
hot water generation °C 35 70 1.0 60
7 Changing the name
(¬ Chap. 5.8)HK1 Enter any name with up to 10 characters HK1
8 Code layer
enabled
(¬ Chap. 5.9)
Code number Enter code number for
access to operating level for
heating engineers
Table 3.6Settable parameters in the Operator level
3 Description of the device
16 Operating manual VRC 630 0020095108_00

4 Start-up
Commissioning may only be carried out by a competent
person. This person is responsible for proper installation
and the initial start-up.
4.1 Instruction by the expert technician
Make sure that you are instructed by the expert tech-
nician in the operation of the controller and the
entire heating installation, and that the appropriate
manuals and documents accompanying the product
are given to you.
4.2 Switching the controller On/Off
bCaution!
Material damage caused by frost!
The frost protection function is only active
when the controller is switched on.
Never switch the controller off when there
is a risk of frost.
Set the main switch of the controller to the
"I" position.
iIf the external sensor of your heating installa-
tion is unable to receive a DCF signal, you will
have to set the time and date manually after
switching on the controller.
Make sure that the time and date are set correctly so
that the preset timer programmes and holiday pro-
gramme will work correctly and the next servicing
appointment can be monitored.
Leave the controller switched on so that you can
keep the system status of the heating installation in
view at all times and can quickly be made aware of
any malfunctions.
Make use of the holiday programme (¬ Chap. 5.5) to
save energy costs during your absence.
>
>
>
>
>
>
1
Fig. 4.1 Switching the controller On/Off
Key
1 Rocker switch
Press the rocker switch (1) to switch the controller
On/Off.
>
Start-up 4
Operating manual VRC 630 0020095108_00 17

5 Operation
5.1 Operating the controller
You can operate the controller with the two and
dials:
When you rotate the dials (¬ Fig. 3.5, Item 2, 3), they
can be felt clicking into the next position. One click
takes you one position forwards or backwards in the
menu, depending on the direction of rotation. In the
parameter setting area, the value is increased or redu-
ced depending on the step size, the range and the direc-
tion of rotation.
In general, the following operating steps are necessary
for Menus 1 to 7:
Select the menu (¬ Chap. 5.1.1).
Select and mark the parameter (¬ Chap. 5.1.2).
Set and save the parameter (¬ Chap. 5.1.3).
As the special functions can only be called up from the
basic display, there is a special operating sequence
(¬ Chap. 5.10).
iHave your expert technician explain the initial
operating steps to you. In this way you can
avoid any unwanted changes to the settings.
5.1.1 Selecting the menu
An overview of all the menus can be found in Fig. 3.6.
All the menus are arranged linearly and are described in
this sequence.
iThe basic display is the controller's standard
display. The controller shows the basic dis-
play automatically after a period of no opera-
tion (min. 15 minutes)
Rotate the left hand
dial until the desired menu is
displayed.
>
5.1.2 Selecting and marking parameters
Rotate the right hand dial
until the cursor

points to the
parameter that you wish to
change.
>
Press the right hand dial.
The parameter is marked and can
be set.
>
–
–
–
5.1.3 Setting parameter values
iYou can set only one marked parameter (¬
Chap. 5.1.2).
Rotate the right hand dial to
change the value of the
selected parameter.
>
Press the right hand dial to
save the changed value.
>
How to set specific parameters is described from Chap-
ter 5.3 onwards (¬ Chap. 5.3 to 5.8).
5.1.4 Calling up special functions
As the special functions can only be called up from the
basic display, there is a special operating sequence
(¬ Chap. 5.10).
5 Operation
18 Operating manual VRC 630 0020095108_00