Vaillant VRC 630 Operating Manual

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VRC 630/3

For the operator

Operating Manual

VRC 630

Bus modular control system for weather-controlled heating control

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

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

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

hot water temperature .....................32

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

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

2 Operating manual VRC 630 0020095108_00

Notes on the documentation 1

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 operating manual.

We accept no liability for any damage caused by nonobservance 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 applicable documents in good condition, so that they are available when required.

1.2 Symbols used

The symbols used in the text are explained below:

Symbol that denotes danger,

Imminent danger to life

–

Danger of severe personal injury

–

Danger of slight personal injury

–

Symbol that denotes danger,

risk of death from electric shock–

Symbol that denotes danger,

Risk of material damage

–

Risk of damage to the environment

–

Symbol that denotes useful tips and information

1.4 Applicability of the manual

This operating manual applies exclusively to equipment with the following article numbers:

Type designation Article No.

VRC 630 0020092435

0020092436

VRC 630 0020092437

0020092438 0020092439 0020092440 0020092430

Table 1.1 Type summary

The article number of the unit can be found on the identification 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

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

External sensor

VRC DCF

VRC 693

230V~

4 VA

4 5

> 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-references) Example: Operating mode Auto

Highlighting A value is highlighted when it is shown in

the display on a dark background.

Operating manual VRC 630 0020095108_00 3

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.

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 warning signs and signal words:

Warning sign

a e

a b

Table 2.1 Warning signs and their meanings

Signal word

Danger!

Warning!

Caution!

Explanation

Immediate danger to life or danger of severe personal injury

Danger of death from electric shock

Danger of minor personal injury

Risk of material or environmental damage

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 use, impairment of the device and other material assets can arise.

The VRC 630 controller is used for weather-compensated and time-dependent control of heating installations with hot water generation.

Any other use or use beyond that specified shall be considered 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 technicia Health and Safety Executive. sible for the proper installation and start-up.

Preventing illness

The controller is furnished with an anti-Legionella function to protect from infection by germs (Legionella). Your expert technician will set the anti-Legionella function when installing the controller.

Ask your expert technician about the mode of opera-

tion of the anti-Legionella function.

n, approved at the time by the

This person is also respon-

non-intended

2.1.2 Structure of warnings

Warning signs are identified by an upper and lower separating line and are laid out according to the following basic principle:

Signal word!

Type and source of danger!

4 Operating manual VRC 630 0020095108_00

Explanation of the type and source of danger

Measures for averting the danger

Safety 2

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-Legionella 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 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.

heating installation.

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 operation 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 heaters (domestic hot water cylinders and hot water boilers) (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.

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.

When thermostat control is active, all the

radiator valves in the room in which the con-

Make sure that: –

the controller is not obstructed by furniture, curtains or other objects.

–

all the radiator valves in the room in which the controller 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).

troller is installed must be fully open.

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.

controller can control the following system circuits:

The

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 circuits.

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 twostage heating appliances can be connected using modulating 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

VR 30, VR 32

VR 31 6

Table 3.1 Maximum number of boilers/heaters that can be

connected

that can be connected

With the remote telephone contact connection (potential-free contact input), the operating mode of the controller can be changed from any location by telephone via the teleSWITCH telephone remote control switch.

6 Operating 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

Table 3.2 Scope of delivery of the VRC 630 kit

depending on national variant

(¬ Table 1.1)

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.

Description of the device 3

VRC 630

VRC DCF

Fig. 3.1 System Overview

Key

VR 90 remote control uni VR 60 mixer module VRC DCF external sensor

VR 90

VR 60

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).

Operating manual VRC 630 0020095108_00 7

3 Description of the device

3.3 Overview of functions

The controller provides the following options for controlling your heating installation and hot water generation:

Off

Heating installation switched off or hot water generation with active frost protection

One-time Cylinder Charging Allows the DHW cylinder to charge up once, independently 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 modes (outside the time window)

Off and Eco

;

The boiler must remain switched on

Heating curve

The basis of weather compensation; improves the matching 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 temperature

by means of a heating curve

Time window Individually settable time settings for the heating installation, the hot water generation and the operation of a circulation pump

3.4 Operating modes

By setting the operating mode, you determine the conditions under which the assigned heating circuit or hot water circuit will be controlled.

CH circuit

Operating mode

Auto The heating circuit is operated alternately in Hea-

Eco The heating circuit is operated alternately in Hea-

Heating The heating is regulated at the daytime set room

Energy save The heating circuit is regulated at the

Off The heating circuit is off if the frost protection

Symbol Meaning

Table 3.3 Operating modes for heating circuits

Effect

ting and Energy Saving mode according to a preset timer programme.

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).

temperature.

nighttime

set room temperature.

function (depending on the external temperature) is not activated.

If the symbol is displayed after the Eco or Auto mode, a time window is active. The heating installation is producing heat.

If the symbol is displayed after the mode, no time window is active. The heating installation is in set-back mode.

Circulation circuit and hot water circuit

Operating mode

Auto The commands for charging the DHW cylinder or

On The charging of the DHW cylinder is constantly

Off No charging of the DHW cylinder takes place. The

Effect

for enabling the circulation pump are given according to a preset timer programme.

enabled. When required, the cylinder is recharged immediately. The circulation pump is constantly in operation.

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).

8 Operating manual VRC 630 0020095108_00

Table 3.4 Operating modes for the circulation circuit and the

hot water circuit

If 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.

3.4 Description of important functions

Time window

25 °

20 °

Description of the device 3

Target room temperature

15 °

Fig. 3.2 Automatic heating operation: Example of setting the

In Fig. 3.2 you can see a section from a timer programme. 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 progression:

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 temperature of 21 °C is effective.

3 The first time window ends at 09.00 hrs.:

From this point onwards a target room temperature of 15 °C is effective.

4 A further two t

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 controlled so that the connected rooms cool down defined temperature (¬ Night set back temp). When the night set back temperature is reached, the controller 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.

Night set back temp.

Time slot 1 Time slot 2 Time slot 3

04:00 16:0008:00 12:00

target room temperatures for different times of day

ime windows of 21 °C follow.

heating installation is

to a

20:00

Hour

Get your expert technician to advise you

about the optimum setting of the heating

Operating manual VRC 630 0020095108_00 9

curve, as the measured outside temperature and the preset heating curve will also affect the control of the heating.

3 Description of the device

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 connected DHW cylinder in the same way

using the controller: The time windows you define specify when the hot water at your desired temperature is available. However there is no night set back tempera

ture for the

hot water generation.Hot water generation is switched

at the end of a time window.

off

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 heating circuit. You have the option of selecting various heating curves to match the control system optimally to your apartment and to the heating installation.

Example of a

Max Flow Setpoint. in °C 90

20 15 10 5 0 -5 -10 -15 -20

Fig. 3.3 Diagram with heating curves

heating curve

4.0 3.5 3.0 2.5 2.0

Heating curves

1.5

1.2

1.0

0.6

0.2

Outside temperature in °C

Example: If heating curve 1.5 is selected, a flow temperature of 75 °C is required for an outside temperature of -15 °C.

Max Flow Setpoint. in °C 90

10 5 0 -5 -10 -15 -20

182022

Axis a

Fig. 3.4 Parallel offsetting of the heating curve

Outside temperature in °C

1.5

If heating curve 1.5 is selected and 22 °C rather than 20 °C is specified as the room target temperature, the heating curve is displaced as shown in Fig. 3.4. The heating curve is displaced in parallel along the 45° axis according 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.

10 Operating manual VRC 630 0020095108_00

Your expert technician will have made the

required basic setting of the heating curve while installing the heating system.

Frost protection function

The controller is equipped with a frost protection function (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 activated, then the heating circuit will be switched off during the set-back period. The preset (night) set back temperature is applied automatically for each heating circuit if the outside temperature falls below +3 °C.

Description of the device 3

Operating manual VRC 630 0020095108_00 11

3 Description of the device

3.6 Overview of controls

All the settings that are required for the heating installation are made on the controller. The controller is equipped with a graphic display. Plain text messages simplify

operation.

Basic data

Date

Day Time Summer/Winter time

>Set day

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

30.10.09 Fr 15:37 Off

3.7 Operator guidance

You can operate the controller with the two 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 parameter. 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.

12 Operating manual VRC 630 0020095108_00

and

Description of the device 3

Wed 02.12.09 15:43 -3 °C

HK1 Storey 1 Eco 20°C Storey 2 Auto 22 °C Cylinder Auto 60°C

Basic data 1

Date Day We Time 14 : 08 Summer/Winter time Auto >Set day

HK1 3 Time programme Mon.-Fri. 1 6:00 – 22:00 2 7:30 – 23:30 3 7:30 – 23:30 >Select weekday/block

HK3 3 Time programme Mon.-Fri. 1 6:00 – 22:00 2 7:30 – 23:30 3 7:30 – 23:30 >Select weekday/block

Heating 22 °C



VRC 630

02 . 12 . 09



Depending on the system configuration, you can call up and set various parameter menus for HK1... HK15.

Wed 02.12.09 15:43 -3 °C

Energy saving enabled to

VRC 630

Wed 02.12.09 15:43 -3 °C

Override function enabled

VRC 630

Wed 02.12.09 15:43 -3 °C

one-time cylinder charging enabled

VRC 630

18:30



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

HK1 5 Parameters Night set back temp Heating curve 1,2

>Select target room temperature

Fig. 3.6 Menu structure of Operator level

15°C

Domestic hot water 5 Parameters

Target Cyl. temp.

>Select target temperature

Name 7 change HK1 HK2 : HK2 HK3 : HK3

> select

Code level 8 enabled Code number:

>Adjust numeric character

: 

HK1

0 0 0 0

60°C

Operating manual VRC 630 0020095108_00 13

3 Description of the device

3.8 Operating levels in the controller

The controller has two operating levels: the Operator level and the Installer level. Each operating level contains several menus where the associated parameters can be displayed, set and changed.

The number of menus displayed depends on

the configuration of your heating installation.

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 ... (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 heating installation, are set in the Installer level. These system-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 parameters are thus protected from unintentional adjustment.

For this reason it is possible that there are more menus described in this manual than your controller displays.

8 and the menus for the special functions

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. 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 individual requirements.

The menus in the Installer level are identified with a letter 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).

1). This number makes it

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).

14 Operating manual VRC 630 0020095108_00

3.10 Menus in different operating situations

In the Operator level

Description of the device 3

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

Basic data

Date



02 . 12 . 09 Day We Time Summer/Winter time

14 : 08

Off >Set day

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 quikkly. 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.

Example: Menu 1 You can make all the relevant settings for the heating installation on the Operator level in Menus (

menu name and the menu number (in the example 1) are

The

1 to 7).

displayed in the upper area. The numbers make it easier to find individual menus during programming.

Wed 02.12.09 15:37 - 15 °C

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.

Energy saving enabled to



18:30

VRC 630

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

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.

>Select target room temperature

Table 3.5 Menu types

The settable parameters are displayed on a grey background.

Operating manual VRC 630 0020095108_00 15

3 Description of the device

3.11 Overview of settable parameters

Menu Menu

name

Basic data

(¬ Chap. 5.3)

Time programmes

(¬ Chap. 5.4)

Holiday program-

ming for whole system (¬ Chap. 5.5)

HK1

parameters (¬ Chap. 5.6)

Domestic hot water parameters (¬ Chap. 5.7)

Changing the name

(¬ Chap. 5.8)

Settable operating values

Date Day Time

Summer/Winter changeover

Day/ block Select weekday/block of

1 Start/End time 2 3

Holiday period Set start day, month, year;

Holiday target value for heating

Night set back temp Specify set-back tempera-

Heating curve Control flow temperature

Target hot water Set target temperature for

HK1 Enter any name with up to

Remarks Units Min.

Select day, month, year; select hour, minutes

weekdays (e.g. Mon-Fri) Three time windows availa-

ble per day/block of days

Set end day, month, year

Set target room temperature for the holiday period

ture for periods between the time windows; when frost protection function is set, the night set back temperature is automatically night set back temperature is not displayed

dependent on outside temperature; various heating curves can be selected

hot water generation

10 characters

5 °C;

Max.

value

Hours/ minutes

°C

°C 5 30 1 15

°C 35 70

5 30 115

0.1 4 0.05-0.1 1.2

Increment/

value

selection option

Auto/Off Off

10 min

1.0 60

Default setting

HK1

Code layer

enabled (¬ Chap. 5.9)

Table 3.6 Settable parameters in the Operator level

Code number Enter code number for

access to operating level for heating engineers

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

Start-up 4

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

Caution!

Material damage caused by frost!

Make sure that the time and date are set correctly so

that the preset timer programmes and holiday programme 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.

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.

If 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.

Fig. 4.1 Switching the controller On/Off

Key

1 Rocker switch

Press the rocker switch (1) to switch the controller

On/Off.

Operating manual VRC 630 0020095108_00 17

5 Operation

5.1 Operating the controller

You can operate the controller with the two 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 reduced depending on the step size, the range and the direction of rotation.

In general, the following operating steps are necessary for Menus –

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, (¬ Chap. 5.10).

1 to 7:

there is a special operating sequence

Have your expert technician explain the initial

operating steps to you. In this way you can avoid any unwanted changes to the settings.

and

5.1.3 Setting parameter values

You 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 Chapter 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).

5.1.1 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.

The basic display is the controller's standard

display. The controller shows the basic dis-

5.1.2 Selecting and marking parameters

play automatically after a period of no operation (min. 15 minutes)

Rotate the left hand

dial until the desired menu is

displayed.

Rotate the right hand dial

until the cursor parameter that you wish to change. Press the right hand dial.

The parameter is marked and can be set.

points to the



18 Operating manual VRC 630 0020095108_00

Operation 5

5.2 Setting parameters in the basic display

The basic display is the controller's standard display. After an extended period without any operations, the display automatically reverts to the basic display.

Wed 02.12.09 15:43 -3 °C Room temperature 22°C



HK1 Storey 1 Eco 20 °C Storey 2 Auto 22 °C Cylinder Auto 55°C

The parameters highlighted on a grey background (operating mode, room target and cylinder temperatures) can be individually set in the basic display.

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. When thermostatic control is activated, the measured room temperature is shown in the second line of the display.

If a room temperature sensor is fitted, the

thermostatic control will be activated by the

You can set the day, date and time in Menu (¬ Chap. 5.3). The outside temperature (-3 °C in the example) is measured by the external sensor and transmitted to the controller. The current room temperature is measured by the room temperature sensor and transmitted to the controller. the basic data:

for each heating circuit

–

– –

–

for the cylinder – –

heating engineer when commissioning the heating installation.

The settable parameters are displayed below

the operating mode set, target room temperature (for the displayed heating circuit)

the operating mode set, target cylinder temperature (hot water temperature)

The number of heating circuits your control-

ler displays in the basic display depends on the configuration of your heating installation.

Heating 22 °C

VRC 630

5.2.1 Setting the operating mode

By setting the operating mode, you inform the controller about the conditions under which the assigned heating circuit or hot water circuit is to be controlled.

If Holiday is displayed instead of the opera-

ting mode, the holiday programme is active.

The following operating modes are possible for:

CH circuit

Operating

Auto The heating circuit is operated alternately in Hea-

Eco The heating circuit is operated alternately in Hea-

Heating The heating is regulated at the daytime set room

Energy save Off The heating circuit is off if the frost protection

Symbol Meaning

Table 5.1 Operating modes for heating circuits

Circulation circuit and hot water circuit

Operating

Auto The commands for charging the DHW cylinder or

On The charging of the DHW cylinder is constantly

Off The cylinder is not charged and the circulation

Table 5.2 Operating modes for the circulation circuit and the

When the holiday programme is active, the operating mode cannot be set. It will be necessary to end the holiday programme to do this.

mode

Effect

ting and Energy Saving mode according to a pre-set timer programme.

temperature. The heating circuit is regulated at the set room temperature.

function (depending on the external temperature) is not activated.

If the symbol is displayed after the Eco or Auto mode, a time slot is active. The heating installation is producing heat.

If the symbol is displayed after the mode, no time window is active. The heating installation is in set-back mode.

Effect

for enabling the circulation pump are given according to a preset timer programme.

enabled. If required, the cylinder is recharged immediately and the circulation pump is constantly in operation.

pump is not in operation. If the temperature in the DHW cylinder falls below 12 °C, the cylinder is reheated to 17 °C (frost protection).

hot water circuit

nighttime

Operating manual VRC 630 0020095108_00 19

5 Operation

The procedure for setting the operating mode in the basic display is explained in the following, using the cylinder as an example.

Wed 02.12.09 15:43 -3 °C

HK1 storey 1 Eco storey 2 Auto 15 °C Cylinder Auto 55°C

Turn the right hand dial until the cursor  is flashing in front of

Wed 02.12.09 15:43 -3 °C

HK1 Heating 22 °C storey 1 Eco storey 2 Auto Cylinder

Press the right hand dial.

The operating mode is marked.

Wed 02.12.09 15:43 -3 °C



Heating 22 °C

20 °C

VRC 630

the Auto mode (Cylinder line).

20 °C

15 °C



Auto 55°C

VRC 630

If you want to change the operating mode for

further heating and circulation circuits / DHW

5.2.2 Setting the target room temperature using

The target room temperature is used to calculate the heating curve. If you increase the required room temperature, the set heating curve is moved parallel to a 45° axis and correspondingly also the flow temperature to be regulated by the controller (¬ Fig. 3.4).

Wed 02.12.09 15:43 -3 °C

HK1 Heating Storey 1 Eco 20 °C Storey 2 Auto Cylinder Auto 55°C

Turn the right hand in front of the example).

cylinders, turn the dial until the cursor positioned in the appropriate line in front of the mode to be changed. Repeat the steps described above.

heating circuit HK1 as an example



22 °C

15 °C

VRC 630

dial until the cursor  is flashing

the target room temperature (22 °C in



HK1 Heating 22 °C Storey 1 Eco 20 °C Storey 2 Auto Cylinder Select mode

Turn the right hand dial until the desired operating

mode appears on the display.

Wed 02.12.09 15:43 -3 °C

HK1 Heating 22 °C Storey 1 Eco Storey 2 Auto Cylinder

Press the right hand dial.

The operating mode is saved and takes effect.



Off 55°C



Off 55°C

VRC 630

15 °C

20 °C

15 °C

Wed 02.12.09 15:43 -3 °C

HK1 Heating Storey 1 Eco Storey 2 Auto Cylinder Auto 55°C >Select target room temperature

Press the right hand dial.

The target room temperature is marked.



22 °C

20 °C

15 °C

20 Operating manual VRC 630 0020095108_00

Wed 02.12.09 15:43 -3 °C

Operation 5

dial.



21°C

20 °C

15 °C



21°C

20 °C

HK1 Heating Storey 1 Eco Storey 2 Auto Cylinder Auto 55°C >Select target room temperature

Turn the right hand dial until the desired target

room temperature appears on the display.

Choose the target room temperature so that

your heat requirements are covered exactly.

Wed 02.12.09 15:43 -3 °C

HK1 Heating Storey 1 Eco Storey 2 Auto 15 °C Cylinder Auto 55°C

Press the right hand

The changed target room temperature is saved and takes effect.

Repeat the steps as required.

You will save energy and costs this way.

VRC 630

Set the target room temperatures for the

other heating circuits or the hot water tempe-

Length of time the changed value remains effective in the control system

If you have changed the target room temperature in the basic display, the new value takes effect in the control system. The heating installation is controlled at the new target room temperature during all the time windows:

immediately, if you have changed the target value

–

during one of the time windows, at the start of the next time window, if you have

–

changed the target value outside a time window.

rature for the cylinder in the same way.

Operating manual VRC 630 0020095108_00 21

5 Operation

5.3 Setting the basic data

You can set the following basic data in Menu –

the date gramme and the service appointment monitoring) the day of the week,

–

the time

–

the time windows) Summer/Winter time.

–

(setting has an effect on the holiday pro-

(setting has an effect on the start and end of

These settings apply to all connected system

components.

5.3.1 Calling up Menu

Basic data

Date Day Wed Time 14 : 08 Summer/Winter time >Set day

Turn the left hand

appears in the display (¬ Chap. 5.1.1).



02 . 12 . 09

Off

dial until Menu 1 Basic data

1 :

Setting the month:

Basic data

Date 02 .12 . 09

Day Wed Time 14 : 08 Summer/Winter time

month

> Set

Turn the right hand dial until the cursor  flashes in the Date line in front of the month.

Basic data

Date 02 .12 . 09 Day Wed Time 14:08 Summer/Winter time > Set month

Press the right hand dial.

The month is marked.

Basic data

Off

5.3.2 Setting the date

If the external sensor on your heating instal-

lation is unable to receive a DCF signal, you

Make sure that the date is set correctly so that the

holiday programme works correctly and the next servicing appointment can be monitored.

The date consists of three parameters (02.12.09 = Day. Month.Year). The setting ranges are predetermined.

can set the date manually if necessary.

Set the month first, as the setting range for

the day depends on the month.

Requirement: Menu 1 Basic data is displayed (¬ Chap. 5.1.1).

Date 02 .11 . 09 Day Wed Time 14:08 Summer/Winter time > Set month

Turn the right hand dial until the desired value for

month is displayed.

the

Basic data

Date 02 .11 . 09 Day Wed Time 14 : 08 Summer/Winter time > Set month

Press the right hand dial.

The changed

month is saved.

Off

22 Operating manual VRC 630 0020095108_00

Operation 5

Setting the day:

Basic data

Date 02 . 11 . 09 Day Wed Time 14 : 08 Summer/Winter time

Set day

Turn the right hand

in front of the Day.

Basic data

Date 02 . 11 . 09 Day Wed Time 14 : 08 Summer/Winter time

Set day

Press the right hand dial.

day is marked.

The

Off

dial until the cursor  is flashing

Off

Setting the year:

Basic data

Date 30 . 11 . 09 Day Wed Time 14 : 08 Summer/Winter time

year

> Set

Turn the right hand dial until the cursor  is flashing in front of the Year.

Basic data

Date 30 . 11 .09 Day Wed Time 14 : 08 Summer/Winter time

year

> Set

Press the right hand dial.

The year is marked.

Off

Basic data

Date 30 . 11 . 09 Day Wed Time 14 : 08 Summer/Winter time

Set day

Turn the right hand played.

Basic data

Date 30 . 11 . 09 Day Wed Time 14 : 08 Summer/Winter time

Set day

Press the right hand

The changed

day is saved.

Off

dial until the desired Day is dis-

Off

dial.

Basic data

Date 30 . 11 10 Day Wed Time 14 : 08 Summer/Winter time

year

> Set

Turn the right hand dial until the desired Year is displayed.

Basic data

Date 30 . 11 .10 Day Wed Time 14 : 08 Summer/Winter time

year

> Set

Press the right hand dial.

The changed year is saved.

Off

Operating manual VRC 630 0020095108_00 23

5 Operation

5.3.3 Setting the day of the week

Requirement: Menu 1 Basic data is displayed (¬ Chap. 5.1.1).

Basic data

Date 30 . 11 . 09



Wed

Off

Wed

Off

Day Time 14 : 08 Summer/Winter time

Set weekday

Turn the right hand dial until the cursor  is flashing in front of the Weekday.

Basic data

Date 30 . 11 . 09 Day Time 14 : 08 Summer/Winter time

Set weekday

5.3.4 Setting the time

The time consists of two parameters (14:08 = Hour:Minute).

If the external sensor on your heating instal-

lation is unable to receive a DCF signal, you

Make sure that the time is set correctly so that the

preset timer programmes will work correctly.

Requirement: Menu 1 Basic data is displayed (¬ Chap. 5.1.1).

Basic data

Date 30 . 11 . 09 Day Wed Time Summer/Winter time > Set hour

Turn the right hand dial until the cursor  is flashing in front of the Hour.

can set the time manually if necessary.



14 : 08

Off

Press the right hand

weekday is marked.

The

Basic data

Date 30 . 11 . 09 Day Time 14 : 08 Summer/Winter time >

Set weekday

Turn the right hand is displayed.

Basic data

Date 30 . 11 . 09 Day Time 14 : 08 Summer/Winter time

Set weekday

Press the right hand dial.

The changed



weekday is saved.

dial.

Mon

Off

dial until the desired Weekday

Mon

Off

Basic data

Date 30 . 11 . 09 Day Wed



Time Summer/Winter time > Set hour

Press the right hand dial.

The hour is marked.

Basic data

Date 30 . 11 . 09 Day Mon Time Summer/Winter time > Set hour

Turn the right hand

displayed.

14 : 08

Off



15 : 08

Off

dial until the desired Hour is



24 Operating manual VRC 630 0020095108_00

Operation 5

Basic data

Date 30 . 11 . 09 Day Mon



Time Summer/Winter time > Set hour

Press the right hand dial.

The changed

Basic data

Date 30 . 11 . 09 Day Wed Time Summer/Winter time > Set minute

Turn the right hand in front of the Minute.

Basic data

15 : 08

Off

hour is saved.

15 08

dial until the cursor  is flashing

Off

Basic data

Date 30 . 11 . 09 Day Mon Time Summer/Winter time > Set minute

Press the right hand dial.

The changed

15 15

Off

minute is saved.

Date 30 . 11 . 09 Day Wed Time Summer/Winter time > Set minute

Press the right hand dial.

The minute is marked.

Basic data

Date 30 . 11 . 09 Day Mon Time Summer/Winter time > Set minute

Turn the right hand dial until the desired Minute is

displayed.

15 08

Off

15 15

Off

Operating manual VRC 630 0020095108_00 25

5 Operation

5.3.5 Activating the summer/winter time changeover

If your heating installation is fitted with a

VRC DCF external sensor (¬ Table 1.1, Part

If you set the Summer/Winter time parameter to Auto, the controller can switch automatically between summer and winter time even though the external sensor has no DCF receiver.

Requirement: Menu 1 Basic data (¬ Chap. 5.1.1).

Basic data

Date 30 . 11 . 09 Day Wed Time 15 : 15 Summer/Winter time >

Select mode

No.), you will not have to activate the summer/winter changeover. The unit will switch automatically between summer and winter time.

is displayed

Off



Basic data

Date 30 . 11 . 09 Day Mon Time 15 : 15

Auto

Summer/Winter time >

Select mode

Press the right hand dial.

The changed Summer/Winter time parameter is saved.

After an extended period without any operations, the display automatically reverts to the



basic display.

Turn the right hand dial until the cursor  is flashing in front of the Summer/Winter time parameter.

Basic data

Date 30 . 11 . 09 Day Wed Time 15 : 15

Off

Summer/Winter time >

Select mode

Press the right hand dial.

The Summer/Winter time parameter is marked.

Basic data

Date 30 . 11 . 09 Day Mon Time 15 : 15 Summer/Winter time >

Select mode

Turn the right hand dial until the desired

Summer/Winter time parameter is displayed.



Auto

26 Operating manual VRC 630 0020095108_00

Operation 5

5.4 Setting the timer programmes

In Menu heating circuits, the DHW cylinder and the circulation pumps. You can set up to three time windows (Start time to End time) for each day or block (a block is, e.g., Mon– Fri). Default settings for the timer programmes:

Sat 7:00 – 23:30 hrs. Sun 7:00 – 23:30 hrs. You can adapt these timer programmes to your needs. Within a time window the heating is on. The regulation is based on the target room temperature. time window, the heating installation reduces the room temperature to the night set back temperature. There is a full sequence of displays for the timer programmes; these are identified by the display. The second line of the display always shows Time programme. The first line of the display shows what the timer programme applies to (e.g. HK1, domestic hot water, circulation pump).

HK1 Time programme

Mon-Fri

1 6:00 – 9:30 2 16:30 – 21:30 3 : – : >Select weekday/block

More information regarding the settable parameters can be found in Table 3.6 (¬ Chap. 3.11).

If a different time window has been programmed for one day (e.g. Wed) within a block (e.g. Mon-Fri), Mon-Fri

--:-- will be displayed for the block. In this case you

must set the time windows for each day individually.

HK1 Time programme

Mon-Fri

1 2 16:30 – 21:30 3 : – : >Select weekday/block

3 you can set timer programmes for the

Mon – Fri 5:30 – 22:00 hrs.

Outside the

3 at the top right of

––:–– – ––:––

You can set the same time windows for the

DHW cylinder and the circulation pump.

The control system operates according to the heating curve and the target room temperature.

5.4.1 Setting time windows

Take some time beforehand to plan your individual time windows carefully. The time windows are the time periods each day/ block during which you are at home and require heat and hot water.

When you define the heating times for a block

(e.g. Mon–Fri), no settings are necessary for

Requirement: Menu 3 HK1 time programme is displayed

The following example describes how to set a timer programme for the weekend for heating circuit HK1.

HK1 Time programme

Mon-Fri

1 6:00 – 9:30 2 16:30 – 21:30 3 : – : >Select weekday/block

Turn the right hand dial until the cursor  is flashing in front of the time period (Mon-Fri in the example).

HK1 Time programme

Mon-Fri.

1 6:00 – 9:30 2 16:30 – 21:30 3 : – : >Select weekday/block

Press the right hand dial.

The time period is marked.

HK1 Time programme

Sat-Sun

1 6:00 – 9:30 2 16:30 – 21:30 3 : – : >Select weekday/block

the individual days within the block.

(¬ Chap. 5.1.1).

If your heating installation is configured with

several heating circuits, a DHW cylinder and a circulation pump, turn the left hand until Menu display for the heating circuit, DHW cylinder or circulation pump for which you wish to set the time programme.

3 Time programme shows the

dial

Operating manual VRC 630 0020095108_00 27

5 Operation

Turn the right hand dial until the time period Sat-Sun is displayed.

HK1 Time programme

Sat-Sun

1 6:00 – 9:30 2 16:30 – 21:30 3 : – : >Select weekday/block

Press the right hand dial.

The changed time period is saved.

5.4.2 Setting the start and end times for time window 1

HK1 Time programme Sat-Sun 1

6:00 – 9:30

2 16:30 – 21:30 3 : – : > Set start time

Turn the right hand dial until the cursor  flashes in front of the Start time for time window 1.

HK1 Time programme Sat-Sun 1 6:00 – 9:30 2 16:30 – 21:30 3 : – : > Set start time

Press the right hand dial.

The Start time is marked.

HK1 Time programme Sat-Sun 1 8:00 – 9:30 2 16:30 – 21:30 3 : – : > Set start time

Turn the right hand dial until the desired Start time is displayed.

You can only set time windows within a day,

i.e. in a time window from 00:00 to

HK1 Time programme Sat-Sun 1 2 16:30 – 21:30 3 : – : > Set start time

Press the right hand dial.

The Start time for time window 1 is saved.

HK1 Time programme Sat-Sun 1

8:00 – 9:30 2 16:30 – 21:30 3 : – : > Set end time

Turn the right hand dial until the cursor  flashes in front of the End time for time window 2.

HK1 Time programme Sat-Sun 1 8:00 – 9:30 2 16:30 – 21:30 3 : – : > Set end time

Press the right hand dial.

The End time is marked.

HK1 Time programme Sat-Sun 1 8:00 – 16:30 2 16:30 – 21:30 3 : – : > Set end time

24:00 hrs. A time window from, e.g., 22:00 to 6:00 is not possible. In this case you must set two time windows, from 22:00 to 24:00 and from 00:00 to 06:00.

8:00 – 9:30

28 Operating manual VRC 630 0020095108_00

Operation 5

Turn the right hand

is displayed.

HK1 Time programme Sat-Sun 1

8:00 – 16:30 2 16:30 – 21:30 3 : – : > Set end time

Press the right hand dial.

The End time for time window 1 is saved.

The Start time and the End time for time window 1 are now set.

Set time windows 2 and 3 as well, if required.

Setting further time windows:

Repeat the steps for setting the Start time and the End time for other time windows in the same way as

was described for time slot 1.

If you set a continuous time window for a Monday, the end result might look like this:

dial until the desired End time

Setting time windows for other heating circuits:

If your heating installation is configured with several heating circuits, DHW cylinders and circulation pumps, turn the left hand dial until Menu gramme shows the display for the heating circuit, DHW cylinder the time programme

5.5 Setting the holiday programme

For the controller and all system components connected to it, you can set: – –

The holiday programme starts automatically when a preset holiday period begins. The holiday programme ends automatically after the holiday period has elapsed. The heating installation is once more regulated according to the previously set parameters and the selected operating mode.

or circulation pump for which you wish to set

. Repeat all the steps for setting the time windows for the other heating circuits, DHW cylinders and circulation pumps.

two holiday periods with start and end date, the desired night set back temperature, i.e., the value at which the heating installation is to be regulated during the absence, independently of the specified timer programme.

3 Time pro-

HK1 Time programme

Mon

1 8:30 – 22:00 2 : – : 3 : – : >Select weekday/block

After an extended period without any operations, the display automatically reverts to the

basic display.

The holiday programme can be activated only

in the Auto and Eco modes.

Before going away, check that the mode is set to Auto or Eco.

If this is not the case, set the mode to Auto or Eco (¬ Chap. 5.2.1).

Requirement: Menu 4 Holiday programming is displayed

Holiday programming for whole system Periods

1 2

Target temperature >Set start day

The parameters on a grey background can be set.

Ending the holiday programme

If you want to end the holiday programme prematurely, set the end date so that it is ahead of the current date.

Any connected cylinder charging circuits or circulation pump circuits are automatically switched to the Off mode during the holiday timer programme.

(¬ Chap. 5.1.1).

30. 02. 09 – 20. 03. 09

05. 05. 09 – 22. 05. 09 15°C

Operating manual VRC 630 0020095108_00 29

5 Operation

5.5.1 Setting time periods

Setting a date (Day.Month.Year) has already been described at length when setting the date in the basic data (¬ Chap. 5.3.2).

Set the Start month, Start day, Start year and the

End month, End day and End year in sequence for time period 1, and also for time period 2 if required. Proceed exactly as was described in Chap. 5.3.2 for month, day and year.

Always observe the information on frost protection (¬ Chap. 5.12).

5.5.2 Setting the target temperature

Always observe the information on frost protection

(¬ Chap. 5.12).

Holiday programming

4 for whole system Periods

1 20. 08. 09 – 28. 08. 09 2 05. 09. 09 – 22. 09. 09

Target temperature

15°C

>Select target room temperature

Turn the right hand dial until the cursor

is flashing



in front of the Target temperature.

Holiday programming

4 for whole system Periods

1 20. 08. 09 – 28. 08. 09 2 05. 09. 09 – 22. 09. 09

Target temperature

15°C

>Select target room temperature

Press the right hand dial.

The target temperature is marked.

Holiday programming

4 for whole system Periods

1 20. 08. 09 – 28. 08. 09 2 05. 09. 09 – 22. 09. 09

Target temperature

16°C

>Select target room temperature

Turn the right hand dial until the desired target temperature is displayed.

Holiday programming

4 for whole system Periods

1 20. 08. 09 – 28. 08. 09 2 05. 09. 09 – 22. 09. 09

Target temperature

16°C

>Select target room temperature

Press the right hand dial.

The target temperature is saved.

The room temperature will be automatically reduced to the preset target temperature during the set holiday periods.

After an extended period without any operations, the display automatically reverts to the

basic display.

5.6 Setting the night set back temperature and the heating curve

5.6.1 Setting the night set back temperature

The set-back temperature is the temperature to which the heating is regulated during the night set back period (e.g., overnight). The night set back temperature can be set individually for each heating circuit.

Requirement: Menu 5 HK1 parameters is displayed (¬ Chap. 5.1.1).

HK1

5 Parameters Night set back temp



15 °C

Heating curve 1.2

>Select target room temperature

Turn the right hand dial until the cursor  is flashing

in front of the Night set back temp.

HK1

5 Parameters Night set back temp



15°C

Heating curve 1.2

>Select target room temperature

Press the right hand dial.

The Night set back temperature is marked.

30 Operating manual VRC 630 0020095108_00

Operation 5

HK1 Parameters Night set back temp Heating curve 1.2

>Select target room temperature

Turn the right hand dial until the desired Night set

back temperature is displayed.

If necessary, find out about the optimum set-

ting from your heating engineer.



16°C

HK1 Parameters Night set back temp Heating curve 1.2

>Select target room temperature

Press the right hand dial.

The Night set back temperature is saved.

Always observe the information on frost protection

(¬ Chap. 5.12).



16°C

HK1 Parameters Night set back temp 16°C Heating curve

> Select

Turn the right hand dial until the cursor  is flashing

in front of the Heating curve.

HK1 Parameters Night set back temp 16°C Heating curve

> Select

Press the right hand dial.

The Heating curve is marked.

HK1 Parameters Night set back temp 16°C Heating curve

heating curve

1.2

1.1

5.6.2 Setting the heating curve

Your selection of heating curve will influence the flow temperature of your heating.

Caution!

Material damage caused by high flow tem-

The heating curve shows the relationship between the outside temperature and the ting is made separately for each heating circuit (¬ Chap. 3.5). The room temperature of your depends to a great extent on the selection of the right heating curve. If the selected heating curve is too high, the temperatures 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.

peratures with underfloor heating!

Flow temperatures above 40 °C can cause material damage with underfloor heating.

Do not set the flow temperature above 40 °C if underfloor heating is in use.

flow temperature. The set-

heating installation

in the heating installation will also be

> Select

Turn the right hand dial until the desired heating

curve is displayed.

HK1 Parameters Night set back temp 16°C Heating curve

> Select

Press the right hand dial.

The heating curve is saved.

After an extended period without any operations, the display automatically reverts to the

heating curve

1.1

heating curve

basic display.

Operating manual VRC 630 0020095108_00 31

5 Operation

5.7 Setting the hot water temperature

You can set the target value for the hot water temperature: –

in the basic display as the temperature for the cylinder (¬ Chap. 5.2) or

–

in Menu

Requirement: Menu 5 Hot water parameters is displayed

Domestic hot water Parameters

Target cyl. temp.

>Select target temperature

5 as the Target cyl. temp. parameter.

Danger!

Risk of being scalded by hot water!

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 temperature so that nobody is at risk.

(¬ Chap. 5.1.1).



60°C

Domestic hot water Parameters

Target cyl. temp.

>Select target temperature

Press the right hand dial.

The target temperature is saved.

After an extended period without any operations, the display automatically reverts to the

5.8 Changing the names of the heating circuits

To provide a better overview of your heating installation, you can change the factory-defined names for the heating circuits individually. If your heating installation has several heating circuits and a DHW cylinder, the controller will only display the factory-set names of the heating circuits.

Name change HK1 HK2

HK 1

HK2



58°C

basic display.

The cursor perature.

Press the right hand

The target temperature is marked.

Domestic hot water Parameters

Target cyl. temp.

>Select target temperature

Turn the right hand dial until the desired target

temperature is displayed.

flashes in front of the target cylinder tem-



dial.



58°C

Choose the target cylinder temperature for

the hot water so that your heat requirements are covered exactly. You will save energy and costs this way.

> Select

The parameters on a grey background can be changed.

The name can be a maximum of ten cha-

racters long and consist of the characters 0

... 9, A ... Z and space.

Changed names are automatically adopted

and displayed in the respective menus.

32 Operating manual VRC 630 0020095108_00

Operation 5

This is how to change the name

Requirement: Menu 7 Change name is displayed (¬ Chap. 5.1.1).

Name change HK1 HK2

> Select

Turn the right hand dial until the cursor  is flashing

in front of the name (for

You can only ever change 1 character at a

time.

Name change HK1 HK2

If you want to change the full name, you must change each character individually and possibly add characters. If you want to delete a character, you must overwrite the character with a space.

HK 1

HK2

HK 1

HK2

HK 1 to ETAGE 1:

HK1).

Name change HK1 HK2

> Select

Press the right hand dial.

The letter E is saved.

Name change HK1 HK2

> Select

Turn the right hand in front of the letter K.

Name change HK1 HK2

EK 1

HK2

K 1

HK2

K 1

HK2

dial until the cursor  is flashing

> Select

Press the right hand

The first character of the name is marked.

Name change HK1 HK2

> Select

Turn the right hand played.

: :

dial.

EK 1

HK2

dial until the letter E is dis-

> Select

Press the right hand dial.

The letter K is marked.

Name change HK1 HK2

> Select

Turn the right hand dial until the letter T is dis-

played.

T 1

HK2

Operating manual VRC 630 0020095108_00 33

5 Operation

Name change HK1 HK2

> Select

Press the right hand

The letter T is saved.

Name change HK1 : E 1 HK2

> Select

Turn the right hand dial until the cursor  is flashing in front of the space.

Name change HK1 HK2

T 1

HK2

E 1

HK2

dial.

Name change HK1 HK2

> Select

Press the right hand

The letter A is saved.

Repeat these steps for the sequence of letters GE 1.

The result should look like this:

Name change HK1 HK2

> Select

The controller saves the new name and displays it in all menus henceforth.

After an extended period without any operations, the display automatically reverts to the

A1

HK2

ETAGE 1

HK2

dial.

basic display.

> Select

Press the right hand

The space is marked.

Name change HK1 HK2

> Select

Turn the right hand dial until the letter A is dis-

played.

34 Operating manual VRC 630 0020095108_00

: :

dial.

EA1 HK2

Operation 5

5.9 Viewing the parameters in the Installer level

Caution!

Inappropriate alterations can cause mate-

Menu 8 The expert technician must enter a code number (access code) in order to switch to the Installer level and set the system-specific parameters. The system-specific parameters are thus protected from unintentional adjustment.

The operator can view the system-specific parameters without entering a code number, but he cannot change them.

This is how to view the system-specific parameters:

Requirement: Menu 8 Code level enable is displayed (¬ Chap. 5.1.1).

rial damage!

Incorrectly set parameters can cause material damage to the heating installation. Only competent persons may set the parameters in the Installer level.

Never alter the settings in Menus C1 ... C11 and A1 ... A8.

is the last menu in the Operator level.

Exiting the Installer level

The Installer level is automatically disabled after approx. 60 minutes. You can view the system-specific parameters in the Installer level again at any time.

Code level enabled Code number:

0 0 0 0

Standard Code:

1 0 0 0

>Adjust numeric character

Press the right hand dial.

You can now view all the settings in the Installer level, but you cannot alter them.

If you turn the left hand dial, you can view

all the menus in the Installer and Operator

levels. You can still set all the parameters in the Operator level.

Operating manual VRC 630 0020095108_00 35

5 Operation

5.10 Using special functions

The special functions are called up from the basic display. The 3 special functions

Energy saving function

– –

Override function

–

One-time Cylinder Charging

are arranged one after another in the menu sequence.

Press (once or twice) the left hand dial

until the desired

special function is displayed.

5.10.1 Activating the Energy-saving function

The Energy saving function allows you to regulate the heating installation at the set-back temperature up to a defined time within a time window.

Wed 02.12.09 15:43 -3 °C

HK1



Heating 22 °C Storey 1 Eco 18°C Cylinder Auto 60 °C

VRC 630

Press the left-hand

dial once.

Wed 02.12.09 15:43 -3 °C

Energy saving enabled



18:30

>Select end time

Turn the right hand dial until the time at which the Energy Saving function is to end is set.

Wed 02.12.09 15:43 -3 °C

Energy saving enabled



22:30

VRC 630

Press the right hand dial.

The set time is saved.

When the set time is reached the Energy Saving function ends automatically and the controller

switches to

the basic display.

Interrupting the Energy Saving function

Press the left-hand

dial three times.

The controller ends the Energy Saving function and switches to the basic display.

Energy saving enabled



18:30

>Select end time

The controller shows the menu for the Energy Saving function. The cursor

saving function

is in front of the End of energy



parameter.

Wed 02.12.09 15:43 -3 °C

Energy saving enabled



18:30

>Select end time

Press the right hand dial to mark the End of energy saving function

parameter.

36 Operating manual VRC 630 0020095108_00

Operation 5

5.10.2 Activating the Advance function

When you activate the Advance function, the heating and hot water times are extended beyond the next switch-off point to the start of the next heating period, i.e. the actual settings for the heating are temporarily overridden. The Advance function only affects those heating or hot water circuits which are set to Auto or ECO mode.

Wed 02.12.09 15:43 -3 °C

HK1 Storey 1 Eco 18°C Cylinder Auto 60 °C

Check that the Auto or Eco mode is set for the heating circuit and DHW cylinder.

If this is not the case, set the mode to Auto or Eco (¬ Chap. 5.2.1).

Press the left-hand

Wed 02.12.09 15:43 -3 °C Room temperature 21°C

Advance function enabled



Heating 22 °C

VRC 630

dial twice.

VRC 630

5.10.3 Activating the One-time cylinder charging function

The One-time Cylinder Charging function allows you to charge the DHW cylinder once, regardless of the current timer programme.

Wed 02.12.09 15:43 -3 °C

HK1 storey 1 Eco 18°C Cylinder Auto 60 °C

Press the left-hand

Wed 02.12.09 15:43 -3 °C Room temperature 21°C

One-time Cylinder Charging activated

The controller shows the menu for One-time cylinder charging. The One-time cylinder charging function is

activated. No settings are necessary. When the water in the cylinder has been heated to the

temperature, the function is ended automatically

set and the

controller switches to the basic display.



Heating 22 °C

VRC 630

dial three times.

VRC 630

The controller shows the menu for the Advance function. The Advance function is activated. No settings are necessary. When the last heating circuit starts to heat again (switch from set-back to heating), is ended automatically and the controller the basic display.

Interrupting the Advance function

Press the left-hand

The controller ends the Advance function and switches to the basic display.

Operating manual VRC 630 0020095108_00 37

dial twice.

the Advance function

switches to

Interrupting One-time cylinder charging

The controller ends the and switches to the basic display.

The hot water temperature is defined by the

expert technician when commissioning your heating installation.

Press the left-hand

dial once.

One-time cylinder charging

5 Operation

5.11 Service functions (only for the expert technician)

The service functions are reserved for the

expert technician and the district chimney

If you activate the service functions unintentionally, you can terminate them by simultaneously pressing both and dials as often as necessary until the display shows the basic view again.

5.12 Ensuring protection from frost

Your controller is equipped with a frost protection function (depends on the outside temperature). The frost protection function ensures that your heating installation is protected from frost in the the time windows)

sweep.

Caution!

Material damage caused by frost!

If you do not ensure adequate protection from frost for your heating installation during your absence, damage to the building and the heating installation can result.

Make sure that adequate frost protection

is guaranteed during your absence.

Off and Eco (outside

modes.

5.14 Data transfer

Data transfer only takes place if your heating installation is fitted with the VRC DCF external sensor (¬ Table 1.1, Part No.). Depending on the conditions on site, it can take up to 15 minutes for all the data (outside temperature, DCF, appliance status etc.) to be updated.

If the Eco mode is set and the frost protection function (dependent on the outside temperature) is not activated, then the heating circuit will be switched off during the set-back period.

The preset (night) set-back temperature is applied automatically for each heating circuit if the outside temperature falls below +3 °C (¬ Chap. 5.6).

Here's how to guarantee protection from frost:

Check that your boiler is connected to the electrical mains. The boiler must not be disconnected from the mains.

Check the mode set on the controller. Frost protection is only ensured in the Off and

5.13 Cleaning and caring for the controller

Use only a damp cloth to clean the casing of the controller.

Never use scouring or cleaning agents which could damage the operating elements or the display.

Eco modes.

38 Operating manual VRC 630 0020095108_00

Troubleshooting 6

6 Troubleshooting

In the event of malfunctions in the heating installation, the controller displays error messages in plain text.

Caution!

Inappropriate alterations can cause mate-

rial damage!

Inappropriate alterations can damage the controller or the heating installation.

Never make changes to or tamper with the boiler or other parts of the heating installation.

Troubleshooting may only be carried out by a

qualified expert technician.

Contact your expert technician.

Inform him of the description of the fault (error text).

6.1 Service message

The controller can display a service message in the second line of the menu:

6.2 Error messages

If an error occurs in the heating installation, ler displays an error message on the second line of the menu.

Example of an error message:

Sun 01.11.09 15:43 -3 °C Boiler comms error HK1 Storey 1 Eco 18°C Cylinder Auto 60 °C



Heating 22 °C

VRC 630

the control-

–

Service + telephone number of the expert technician

Example of a service message:

Sun 01.11.09 15:43 -3 °C Service 02191 123456 HK1 Storey 1 Eco 18°C Cylinder Auto 60 °C

This service message alerts you to required servicing of the heating installation. Additionally, the expert technician's telephone number appears if the engineer has programmed it in.



Heating 22 °C

VRC 630

Operating manual VRC 630 0020095108_00 39

6 Troubleshooting

Error message Cause

VR 60 (4) comms error There is no communication with

Boiler comms error There is no communication with

Error boiler The boiler is reporting a malfunc-

VRC 630 VF1 fault The VF1 inlet sensor is defective. VR 60 (4) VFa fault,

VIH-RL sensor T1 error, VPM W (1) sensor T1 error, ...

HK1 temperature error The target temperature for the

When combined with a VIH-RL DHW cylinder, the following errors can be displayed:

External current anode fault

VIH-RL Limescale in heat exch.

Table 6.1: Error messages and causes

the VR 60 mixer module at bus address 4. Information displayed: – the affected component – the unreachable address – an indication that communica-

tion is interrupted – the bus cable is not connected – no power is present, – the component is defective.

the boiler. This message alerts you to a boiler fault. The boiler is possibly out of operation.

tion via the eBUS. See the manual for the boiler

Information displayed: – the affected component – the affected sensor with its desi-

gnation on the ProE connector

strip Possible causes: – a break – a short circuit on the affected

sensor.

heating circuit has not been reached after a defined time. This time is set by the expert technician in Menu C11: Parameter Temp. fault detection after; Default: OFF). Setting range: OFF, 0 - 12 h

The external current anode monitoring in the VIH-RL has detected a fault.

The VIH-RL electronics have detected that the heat exchangers need to be serviced.

6.3 Detecting and rectifying malfunctions

The display remains dark or does not respond to any operations

If the display remains dark or you are unable to make any changes to the display using the

dials, contact

your expert technician.

The controller is displaying an error message

If an error message is displayed in the 2nd

line of the menu, arrange for an expert tech-

nician to rectify the fault promptly. Faults may only be rectified by a qualified expert technician.

Information on troubleshooting can be found in the

operating manual for the boiler.

Further error codes and descriptions of their causes can be found in the manuals for the components of your heating installation.

40 Operating manual VRC 630 0020095108_00

7 Taking out of service

Complete decommissioning may only be carried out by a competent person. This person is responsible for proper decommissioning and disassembly.

7.1 Shutting down the heating temporarily

If you want to shut down your heating tempo-

rarily, during the holidays for example, then

follow the instructions in the operating manual for your boiler.

Taking out of service 7

Fig. 7.1 Switching the controller On/Off

7.2 Switching off the controller temporarily

Caution!

Material damage caused by frost!

Make sure that the time and date are set correctly so

that the preset timer programmes and holiday programme 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.

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.

If 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.

Key

1 Rocker switch

Press the rocker switch (1) to switch the controller

On/Off.

Operating manual VRC 630 0020095108_00 41

8 Recycling and disposal

Both your Vaillant VRC 630 controller and its packaging are primarily made of recyclable raw materials.

Appliance Neither your controller nor any of its accessories belong in the household waste. Make sure the old unit and any accessories present are disposed of properly.

Packaging Please leave the disposal of the transport packaging to the expert technician company which installed the appliance.

42 Operating manual VRC 630 0020095108_00

Energy saving tips 9

9 Energy saving tips

Caution!

Material damage caused by frost!

Operating the heating system in set-back mode

Reduce the room temperature at night and in your absence. The simplest and most reliable way is to reduce the room temperature by means of the vidually selectable timer programmes.

Target room temperature

Set the target room temperature only as high as would be necessary for your comfort level. An extra degree would mean increased energy consumption of about 6%. Adjust the room temperature according to the purpose of use of the room. For example, normally, bedrooms or seldom used rooms are heated to 20 °C.

If you do not ensure adequate prost protection for your heating installation in winter, this can result in damage to the building and to the heating installation.

In winter, make sure that adequate frost

protection is maintained.

controller with indi-

Do not obstruct the controller

Do not obstruct your controller with furniture, curtains or other objects. It must be able to detect the circulating room air without hindrance. Covered thermostatic valves can be fitted with remote sensors and thus continue to work.

Installation of a weather-controlled heating controller

Weather compensators regulate the heating supply temperature according to the outside temperature. Thus it is ensured that heat in excess of what is required at the moment is not generated. In addition, desired heating and set-back phases (e.g. at night) are automatically turned on and off by using integrated time programmes. Weather compensators combined with thermostat valves are the most economical form of heating regulation.

Ventilating residential spaces

During the heating period, open windows only for ventilation and not for temperature regulation. A brief, forced change of air is more effective and energy-saving than windows that are kept open for a long time. Close

thermostatic valves in the room during ventila-

all the tion. These measures guarantee adequate air circulation without unnecessary loss of energy and cooling off.

Uniform heating

Often, in an apartment with central heating, only one room is heated. Adjacent rooms are also heated without regulation by the enclosing surfaces of the room, i.e. walls, doors, windows, roofs and floors, which means that an unwanted loss of thermal energy occurs. The capacity of the heating element of this one heated room is obviously not enough for such an operating mode. Consequently, the room can not be heated satisfactorily and an uncomfortable feeling of coolness prevails (the same effect is produced when doors between heated or unheated or slightly heated rooms remain open). This is false economy: The heating is in operation and still the room temperature is not comfortably warm. Greater heating comfort and a more practical operating mode is achieved when all rooms in an apartment are heated uniformly and in accordance with their usage.

Thermostatic valves and room thermostats

Thermostatic valves on all radiators maintain the room temperature exactly once set. You can adjust the room temperature to suit your individual requirements and ensure economical operation of your heating installation using the thermostatic valves in combination with a weather-compensated controller. This is how a thermostatic valve works: When the room temperature rises above the value set on the sensor head, the thermostatic valve closes automatically. When the room temperature falls below the set value, the thermostatic valve opens once more.

Operating manual VRC 630 0020095108_00 43

9 Energy saving tips

How to make positive energy savings:

Activate the energy-saving function when airing the

room or during temporary absences.

Caution!

Material damage caused by freezing!

Programme your holiday periods to avoid unneces-

sary heating during extended absences. Set the cylinder target temperature (for hot water) to

the lowest value necessary just to cover your heat demand. If possible, set the Eco mode for all heating circuits

and have the frost protection delay time adjusted by your heating engineer. The heating is completely switched off overnight in

the Eco mode. If the outside temperature falls below +3 °C, the night set back temperature is invoked again after the presettable frost protection delay time. The frost protection delay time can be extended for

houses with good thermal insulation.

Parts of the heating installation can freeze if the frost protection is delayed for too long.

Setting the frost protection delay is a job

for the expert technician!

Use the special one-time cylinder charging mode

The DHW cylinder can be heated once outside the time window by using the special One-time cylinder charging mode. Thus hot water is quickly available on demand, even outside the time window.

44 Operating manual VRC 630 0020095108_00

10 Warranty and Customer Service

10.1 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 owner 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).

10.2 Vaillant 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.

Warranty and Customer Service 10

Operating manual VRC 630 0020095108_00 45

11 Technical data

11.1 VRC 630

Parameter Units Value

Operating voltage V AC/Hz 230 / 50 Controller power consumption VA 4 Contact load of the output relays (max.) A 2

Maximum total current A 6.3 Shortest switching interval min 10 Power reserve min 15 Maximum ambient temperature °C 40 Sensor operating voltage V 5 Minimum cross-section

- of the sensor lines

- of the 230 V connection lines Dimensions of the wall box Height mm 292 Width mm 272 Depth mm 74 Level of protection Controller protection class I

Degree of environmental pollution Normal

Table 11.1 Technical data for VRC 630

mm mm

0.75

1.50

IP 20

46 Operating manual VRC 630 0020095108_00

Technical data 11

11.2 Default settings

The default settings can only be set, and if necessary reset, in the Installer level.

Displayed text Adjustable parameters Setting range Default setting

Heating circuit parameters

Cylinder charging circuit parameters Charging pump overrun

Overall system parameters Max. pre-switch off

Heating appliance parameters Switching hysteresis

Heating appliance: Cascade parameters (only for cascade systems)

Special function - teleSWITCH teleSWITCH for heat zone 1

Special function - floor drying heat zone 2 schedule

Service Telephone number of expert techni-

Tool Temperature correction:

Night set back temp Max limit Pump delay time Minimum temperature Maximum temperature Max. advanced heating time Switch-on room temperature Fixed value day Fixed value night Max limit outs.temp. Return temperature

Anti-legionella function Legionella protect - start Parallel charging

Frost protection delay Continuous heating Fast temperature increase

Minimum temperature Cylinder starting output

Switch on delay Switch off delay Reverse boiler sequence

teleSWITCH for heat zone 2 teleSWITCH for cylinder

heat zone 3 schedule

cian Maintenance date Temp. fault detection after

Outside temperature Current room temperature Display contrast

outs.temp.

5 - 30 °C 5 - 50 °C

min

0 - 30 15 - 90 °C 15 - 90 °C 0 - 300 min none/room temp./thermostat 5 - 90 °C 5 - 90 °C 5 - 50 °C 15 - 60 °C

0 - 15 min Off, Mon, Tue, ...Sun, Mon-Sun 00:00 – 24:00 Off/On

0 - 120 min 0 - 23 h Off, -25 ... 10°C

0 - 15 K

– 20 K

1 15 - 90 °C 1 - 2

1 - 90 min

1 - 90 mi Off/On

None, heating, off, Auto, Eco, Energy sav None, heating, off, Auto, Eco, Energy sav None, On, Off, Auto

0 - 29 0 - 29

0 - 9 (17 digit) Date OFF, 0 - 12 h

-5 ... +5 K

-3 ... +3 K 0 - 15

15 °C 21°C

min

0 15 °C 75 °C / 90 °C

min

0 n/a 65°C 65°C 21°C 30°C

5 min Off 04:00 Off

15 min 1 h Off

0 K 8 K

15 °C 1

5 min 5 min Off

Energy sav. Energy sav. Off

0 0

01.01.01 Off

0 K 0 K 11

Table 11.2 Default settings

Operating manual VRC 630 0020095108_00 47

Glossary

Circulation pump

When you turn on the hot water tap it can take a few moments - depending upon the length of the pipe before hot water comes out. A circulation pump pumps hot water through the pipes in the hot water circuit. This ensures that hot water is immediately available when you turn on the tap. Time windows can be programmed for the circulation pump.

Cursor



The cursor

Cylinder charging

Cylinder charging means that the water contained in the cylinder is being heated to the desired hot water temperature.

DCF receiver

A DCF receiver receives a time signal. The time signal sets the time automatically and provides automatic switching between summer time and winter time.

eBUS

The eBUS communications protocol simplifies the control-related coupling of various system components within a heating system. It provides particular flexibility for retrofitting and expanding the system. The installation of additional boilers or the retrospective incorporation of components such as solar hot water generation is thus simplified. The eBUS provides extended possibilities for connecting external controllers and also for connecting to the vrnetDIALOG Internet communications system for remote servicing and diagnostics.

Error message

An error message indicates in plain text that the controller has detected a fault in the heating installation.

Flow temperature

See Heating flow temperature.

Frost protection delay/ Heating frost protection

The heating frost protection function ensures the system is protected from frost in the Off and Eco modes (outside the time windows) and applies to all connected heating circuits. To prevent the system from freezing, the required room temperature is set to the set setback value and the heating circuit pump is switched on if the outside temperature falls below 3 °C. The frost protection function can be suppressed for a certain period of time by setting a delay time (setting range of 0 - 23 h). Furthermore frost protection is activated regardless of the measured outside temperature if it is established that the measured room temperature is lower than the set night set back temperature with a connected remote control device.

marks the parameter to be changed.

Heating circuit A heating circuit is a closed circulation system of pipes and heat consumers (e.g. radiators). The heated water from the boiler flows into the heating circuit and returns to the boiler as cooled water. A heating installation usually has at least one heating circuit. However additional heating circuits can be connected, e.g. to supply several apartments or additional underfloor heating.

Heating curve

The flow temperature in heating installations, calculated as a function of the outside temperature, is known as the heating curve. The flow temperature in the heating circuit gets warmer the becomes

Heating flow temperature

Your appliance heats water which is then pumped through your heating system. The temperature of this hot water as it leaves the boiler is referred to as the flow temperature.

Heating installation

The heating installation heats up the apartment and produces hot water.

Heating pump

A heating pump in a heating installation is a centrifugal pump which conveys the heated heating water to the radiators and house service connection stations and at the same time feeds back the cooled water from the return pipes so that the boiler can heat it up again.

HK1

HK1 is the standard name (default setting) for heating circuit 1 of your heating installation. You can change this name.

Hot water generation

Your boiler heats the water in the DHW cylinder to the selected target cylinder temperature. If the temperature in the DHW cylinder falls by a specified amount, the water is heated up again to the target cylinder temperature. You can programme time windows for heating up the cylinder contents.

Installer level

The Installer level displays the specific parameters that the expert technician can set/change. This level is reserved for the heating engineer and is therefore protected by an access code.

Legionella Legionella are water-borne bacteria which can quickly propagate and cause serious lung diseases. They occur wherever heated water provides the optimum conditions for multiplication. Temporarily heating the water to above 65 °C kills off the legionella.

lower the outside temperature

48 Operating manual VRC 630 0020095108_00

Glossary

Level of protection

The level of protection indicates the suitability of electrical equipment for various ambient conditions and additionally the protection of people from potential hazards during their use. Example: The controller has Level of Protection IP 20. The two digits are significant here. The first digit indicates the protection of the equipment from contact, e.g. with objects or body parts, which could penetrate into dangerous areas of the equipment (2 = objects > 12.5 mm Ø). The second digit indicates the protection of the equipment from the ingress of water (0 = no protection).

Protection class

Protection class denotes the classification and identification of electrical equipment with reference to the existing safety measures to prevent

Target values

Target values are desired values that you specify in the controller, e.g. the room target temperature or target cylinder temperature for water heating.

A menu displays a selection of parameters which you can alter.

Night set back temperature

The night set back temperature is the temperature to which your heating system reduces the room temperature outside of the programmed time window.

Operating mode Using the operating modes you determine how your room heating or hot water generation is controlled.

Operator level

The Operator level displays the basic parameters which you can set/change without any special prior knowledge during normal operation. You can adapt your heating installation to your needs by setting the parameters accordingly.

Parameters

Parameters are the operating values of your heating system. You can changing the Night set back temperature parameter from 15 °C to 12 °C.

set these operating values by, for example,

electric shocks.

Summer/Winter changeover

In the basic display it is possible to determine whether the changeover between summer and winter time is to take place automatically. The default setting (as-supplied condition) is for automatic changeover not to take place. If the controller is fitted with a VRC DCF external sensor, the summer/winter changeover takes place automatically. Switching off the automatic changeover is not possible in this case. On the last weekend in March, the clock is put forward by one hour: from 2:00 to 3:00 hrs. On the last weekend in October, the clock is put back by one hour: from 3:00 to 2:00 hrs.

Switch-on room temp.

Thermostatic control takes account of the room temperature when calculating the flow temperature. Prerequisites:

There is a temperature sensor, which measures the

–

room temperature, fitted in the remote control or in the wall-mounted controller.

–

The thermostatic control function must be activated for each heating circuit by the heating engineer (Menu C2).

Target room temperature

The target room temperature is the temperature that you would like in your apartment and which you specify to your controller living room, then the target room temperature for the room in which the controller is installed applies. If the controller is installed in the boiler, the target room temperature is applied as a reference value for controlling the flow temperature in accordance with the heating curve.

Time window

Three time windows per day can be programmed for the heating, the hot water generation and the circulation pump. Example: Time window 1: Mon 09.00 - 12.00 hrs. Time window 2: Mon 15.00 - 18.30 hrs.

For hot water generation, the target hot water temperature prevails for all time windows. The time windows specify the operating times for the circulation pump.

.If the controller is installed in the

Room temperature

The room temperature is the temperature actually measured in your apartment.

Selectors

The dials are buttons with which, by turning and pressing, you can select menus or parameters, and alter and save values.

Operating manual VRC 630 0020095108_00 49

Weather-controlled The outside temperature is measured by a separate sensor which is mounted in the open air, and the results are transmitted to the controller. At low outside temperatures the controller provides increased heating output; at higher outside temperatures the heating output is reduced.

Index

Activating the summer/winter time changeover .... 26

Advance ................................................................................ 8

Advance function

Activating the Advance function ............................. 37

Article number .................................................................... 3

Basic display ....................................................................... 15

Changing the names of the heating circuits, DHW

cylinder and circulation pump ...................................... 32

Cleaning and caring for the controller ...................... 38

Commissioning ................................................................... 17

Controls ............................................................................... 12

Overview ......................................................................... 12

Data transfer .................................................................... 38

DCF

VRC DCF external sensor ............................................ 7

Default settings ................................................................ 47

Description of the appliance ........................................... 6

Operating modes ........................................................... 8

System overview ........................................................... 7

Description of the device ................................................. 6

Construction and function .......................................... 6

Energy saving function .............................................. 8

Energy saving tips .................................................... 43

Error messages ................................................................ 39

Detecting and rectifying malfunctions ................. 40

Error codes and causes ............................................ 40

Frost protection function ............................................ 8

Ensuring protection from frost ............................... 38

Functions .............................................................................. 8

Advance ........................................................................... 8

Frost protection function ....................................... 8

Holiday programme ...................................................... 8

One-time Cylinder Charging ....................................... 8

Overview .......................................................................... 8

Glossary ............................................................................. 48

, 36

, 44

, 11

Heating circuit .................................................................. 48

Heating curve .................................................................... 10

Holiday programme ........................................................... 8

Adjust ............................................................................ 29

ending ............................................................................ 29

Setting the target temperature .............................. 30

Setting time periods .................................................. 30

Hot water temperature ................................................... 32

Identiﬁ cation plate ............................................................. 3

Installer level ..................................................................... 14

Exiting the Installer level .......................................... 35

Viewing the parameters in the Installer level ..... 35

Intended use ........................................................................ 4

Legionella .......................................................................... 49

Menu structure .................................................................. 13

Menu types ......................................................................... 14

Night set back temperature ......................................... 48

One-time Cylinder Charging ............................................ 8

Activating One-time Cylinder Charging ................. 37

Operating levels ................................................................ 14

Installer level ................................................................ 14

Operator level .............................................................. 14

Operating modes ........................................................ 8

Operating the controller .................................................. 12

Operation ............................................................................ 18

Calling up special functions ...................................... 18

Menu structure ............................................................. 13

Selecting and marking parameters ........................ 18

Selecting the menu ..................................................... 18

Operator level ................................................................... 14

Parameters in the Operator level ........... 22

Activating the summer/winter time changeover 26

Setting the date ........................................................... 22

Setting the day of the week .................................... 24

Setting the holiday programme .............................. 29

Setting the room temperature ............................... 20

Setting the time .......................................................... 24

Setting timer programmes ....................................... 27

Setting time windows ................................................ 28

Parameters in the operator level ................................. 19

Settable parameters in the operator level (overview)

Setting the room temperature ............................... 20

, 27, 30, 32

, 48

50 Operating manual VRC 630 0020095108_00

Recycling and disposal ................................................... 42

Packaging ..................................................................... 42

Safety and warning information ..................................... 4

Settings ......................................................................... 19

Setting a time period .................................................. 27

Setting parameters in the basic display ................ 19

Setting the basic data ................................................ 22

Setting the cylinder target temperature ............... 32

Setting the date ........................................................... 22

Setting the day of the week .................................... 24

Setting the holiday programme .............................. 29

Setting the night set back temperature and the

heating curve .............................................................. 30

Setting the operating mode ..................................... 19

Setting the room temperature ............................... 20

Setting the time .......................................................... 24

Setting timer programmes ....................................... 27

Setting time windows ................................................ 28

Setting the basic data ..................................................... 22

Setting the cylinder target temperature .................... 32

Setting the heating curve ............................................. 30

Setting the night set back temperature .................... 30

Setting timer programmes ............................................ 27

Special functions ................................................. 15

Advance function ........................................................ 37

Energy saving function ............................................. 36

One-time Cylinder Charging ..................................... 37

Symbols ................................................................................ 3

, 32

, 36, 37

Index

Taking out of service ....................................................... 41

Technical data .................................................................. 46

Time window ................................................................... 8

Time windows .................................................................... 27

Troubleshooting ............................................................... 39

Type overview ..................................................................... 3

Viewing the parameters in the Installer level .......... 35

Weather compensation ..................................................... 8

Weather compensator .................................................... 49

Operating manual VRC 630 0020095108_00 51

, 9

For the heating engineer

Installation Manual

VRC 630

Contents

1 Notes on the documentation ...........................4

1.1 Storing the documents..............................................4

1.2 Symbols used ...............................................................4

1.3 Validity of the instruction manual .........................4

1.4 Identification plate .....................................................4

1.5 CE label .........................................................................5

1.6 Name of the unit .........................................................5

2 Safety instructions and regulations ............... 6

2.1 Safety and warning information .............................6

2.1.1 Classification of warnings ........................................6

2.1.2 Structure of warnings ...............................................6

2.2 Intended Use ................................................................6

2.3 General safety instructions ...................................... 6

2.4 Directives, laws and standards ............................... 7

3 Equipment and functional description ............ 8

3.1 Construction and function .......................................8

3.2 Overview of functions ............................................. 10

3.3 Operating modes ...................................................... 10

3.4 Description of important functions ........................11

3.5 Overview of controls ................................................14

3.6 Operator guidance ....................................................14

3.7 Operating levels in the controller .........................18

3.8 Menu types ..................................................................18

3.9 Menus in different operating situations ..............19

4 Assembly ..........................................................20

4.1 Basic installation steps........................................... 20

4.2 Scope of delivery ..................................................... 20

4.3 Accessories ............................................................... 20

4.4 Unpacking the unit ....................................................21

4.5 Checking the scope of delivery ..............................21

4.6 Dispose of the packaging ........................................21

4.7 Observe the requirements for the

installation location ...................................................21

4.8 Installing the VRC 630 heating controller .........22

4.8.1 Installing the controller with a wall mount ........22

4.8.2 Installing the controller as a remote control

device...........................................................................23

4.8.3 Installing the DCF receiver with integrated

external sensor ........................................................ 24

4.8.4 Fitting the VRC 693 external sensor ...................25

5 Electrical installation ...................................... 27

5.1 Connecting a boiler without eBUS .......................27

5.2 Connecting a boiler with eBUS ............................ 28

5.3 Wiring ...........................................................................29

5.3.1 Connecting a mixer circuit as a cylinder

charging circuit .........................................................29

5.3.2 Peculiarities of the circulation pump ‚

connection ..................................................................29

5.3.3 Inputs for special functions .................................. 30

5.3.4 Connector assignment .............................................31

5.3.5 Peculiarities if a domestic hot water cylinder

is connected ...............................................................32

5.4 Connecting the DCF receiver..................................41

5.5 Connecting accessories ........................................ 42

5.5.1 Connecting the remote control device .............. 42

5.5.2 Connecting further mixer circuits ....................... 42

5.6 Connecting several heaters (cascade) ............... 42

5.6.1 Connecting modulating heating appliances

without eBUS .............................................................43

5.6.2 Connecting several modulating heating

appliances with eBUS ..............................................43

5.6.3 One and two stage heating appliances .............. 44

5.7 Completing the electrical installation of the

controller ................................................................... 44

6 Start-Up ............................................................45

6.1 Switching on the controller .................................. 45

6.2 Automatic initial start-up ...................................... 46

6.3 Protecting the Installer level from

unauthorised access ................................................47

6.4 Data transfer .............................................................47

7 Operating the controller .................................48

7.1 Basics of operation ................................................. 48

7.1.1 Operating the controller ........................................ 48

7.1.2 Selecting a menu ..................................................... 48

7.1.3 Selecting and marking parameters ..................... 48

7.1.4 Setting parameter values ...................................... 48

7.1.5 Calling up special functions ..................................48

7.2 Setting and optimising parameters in the

Operating level ......................................................... 49

7.2.1 Setting the operating mode and the

target room temperature ...................................... 49

7.2.2 Menu 1: Setting the basic data .............................50

7.2.3 Menu 3: Setting time slots ......................................51

7.2.4 Menu 4: Holiday programming ..............................52

7.2.5 Menu 5: Setting the set-back temperature, heating curve and hot water temperature

(cylinder target) ........................................................53

7.2.6 Menu 7: Changing names ...................................... 55

7.2.7 Menu 7: Enabling the Installer level .................... 56

7.3 Setting and optimising parameters in the

Installer level .............................................................57

7.3.1 Menu C2: Setting the parameters

for HK1...HK15 ............................................................ 58

7.3.2 Menu C3 .......................................................................61

7.3.3 Menu C4: Setting the parameters for the

cylinder charging circuit .........................................62

7.3.4 Menu C7: Setting the parameters for the

entire system ............................................................ 64

7.3.5 Menu C8: Setting the minimum temperature .. 66

7.3.6 Menu C9: Setting the special functions ............. 68

7.3.6.1 Special function - teleSWITCH ............................. 68

7.3.6.2 Special function - screed floor drying ................ 69

7.3.7 Menu C11: Setting the service dates and

access code .................................................................71

7.3.8 Menu C12: Setting the temperature

correction and the display contrast ....................73

2 Installation Instructions VRC 630 0020095108_00

7.3.9 Menu C15: Checking software versions ...............73

7.4 Parameters in the Installation Assistant ............74

7.4.1 Menu A1: Setting the language ..............................74

7.4.2 Menu A4: Configuring boilers ................................74

7.4.3 Menu A5: Setting priority and cascade

parameters .................................................................75

7.4.4 Menu A6: Setting the type of use ........................76

7.4.5 Menu A7: Testing actuators and sensors ...........77

7.5 Exiting the Installer level ........................................78

7.6 Service functions .....................................................78

7.6.1 Operating sequence for service functions ........78

7.6.2 Maximum output operation ...................................78

7.6.3 Manual operation ......................................................78

7.7 Activating the special functions ...........................78

8 Hand-over to the owner ................................... 81

9 Troubleshooting ...............................................82

9.1 Fault memory ........................................................... 82

9.2 Service message ...................................................... 82

9.3 Error messages ........................................................ 82

9.4 Overview of error codes ........................................ 82

Contents

10 De-commissioning ...........................................84

10.1 Shutting down the controller temporarily ........84

10.2 De-commissioning the controller ........................ 84

10.3 Disposing of the controller.................................... 85

11 Recycling and disposal....................................86

12 Warranty and customer service ....................87

10.1 Vaillant warranty ......................................................87

10.2 Vaillant Service .........................................................87

13 Technical data ..................................................88

13.1 Technical data for the VRC 630 .......................... 88

13.2 Sensor characteristics ............................................ 88

13.3 Factory settings ....................................................... 89

Declaration of conformity ............................................91

Glossary ......................................................................... 92

Index ..........................................................................96

3Installation Instructions VRC 630 0020095108_00

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 operating manual.

We accept no liability for any damage caused by nonobserve these instructions.

Other applicable documents

Always observe all installation instructions for structural parts and components of the system when installing the VRC 630 controller. These installation instructions are included with the individual assemblies in the system and the additional components.

Furthermore, follow all the operating instructions that accompany the components of the system.

1.1 Storing the documents

Pass these installation instructions and all other applicable documents and, if necessary, any required aids to the system operator. who will store them so that they are available when required.

1.3 Validity of the instruction manual

This installation manual is valid exceptionally for devices with the following item numbers:

Type designation Part No. External sensor

VRC 630 0020092435

0020092436

VRC 630 0020092437

0020092438 0020092439 0020092440 0020092430

Table 1.1 Type summary

The part number of the unit can be found on the identification plate.

1.4 Identification plate

The identification plate is readily visible on the left side of the controller base.

VRC DCF

VRC 693

1.2 Symbols used

The symbols used in the manual are explained below:

Symbol that denotes danger,

Imminent danger to life

–

Danger of severe personal injury

–

Danger of slight personal injury

–

Symbol that denotes danger,

risk of death from electric shock–

Symbol that denotes danger,

Risk of material damage

–

Risk of damage to the environment

–

Symbol that denotes useful tips and information

> Symbol for a required action

21092600200285150907011320N4

VRC 630/3

1 2

Fig. 1.1 Identification plate

Key

1 EAN code 2 Equipment designation 3 Operating voltage 4 Power consumption 5 CE label

230V~

4 VA

4 5

4 Installation Instructions VRC 630 0020095108_00

1.5 CE label

CE marking shows that the appliances according to the model overview comply with the basic requirements of the following Directives of the Council:

Directive 2006/95/EC of the Council with amend-

–

ments "Directive Concerning Electrical Equipment for Use Within Specific Voltage Limits" (Low voltage directive) Directive 2004/108/EC of the Council with amend-

–

ments "Directive Concerning Electromagnetic Compatibility"

The units comply with the following standards:

EN 60730-1

–

EN 60730-2-9

–

By attaching the CE label, we confirm as the equipment manufacturers that the safety requirements according to § 2, 7. GSGV have been satisfied and that production units conform to the tested type sample.

Notes on the documentation 1

1.6 Name of the unit

The VRC 630 controller is hereafter described as the controller.

5Installation Instructions VRC 630 0020095108_00

2 Safety instructions and regulations

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 warning signs and signal words:

Warning sign

Signal word

Danger!

Description

Immediate danger to life or danger of severe personal injury

Danger of death from electric shock

Danger of minor personal

Warning!

injury

2.2 Intended Use

The VRC 630 weather compensator 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 property can arise.

The VRC 630 controller is used for weather-compensated and time-dependent control of heating installations with hot water generation.

This unit is not intended for use by persons (including children) with physical, sensory or mental impairments or who have inadequate experience and/or knowledge, unless they are supervised by a person responsible for their safety or have been given instructions by this person regarding the operation of the unit. Children must be supervised to ensure they do not play with the unit.

Any other or additional use is considered to be improper. The manufacturer/supplier is not liable for any resulting damage. The owner alone bears any risk. Intended use includes the observance of the operating and installation manuals, and all other applicable documents.

Risk of material or envi-

Caution!

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 following basic principle:

Signal word!

Type and source of danger!

Description on the type and source of danger

Measures for averting the danger

2.3 General safety instructions

Observe the following safety instructions at all times.

Qualification of the heating engineer

he installation of the controller may only be carried out by a heating engin Health and Safety Executive. This person is also responsible for the proper installation a

Installing and setting the controller

The installation, commissioning and repair of the controller may only be carried out by an accredited specialist company. The heating engineer must comply with the prevailing regulations, rules and directives when performing this work.

Using tools

Inappropriate tools and/or the improper use of tools can result in damage (e.g. damage to casing parts or cables).

Always use suitable screwdrivers when releasing or

tightening screwed connections.

eer, approved at the time by the

nd initial start-up.

6 Installation Instructions VRC 630 0020095108_00

Safety instructions and regulations 2

Protecting from Legionella

The controller is furnished with an anti-Legionella function to protect from infection by germs (Legionella).

Set the anti-Legionella function when installing the

controller.

Preventing the risk of scalding

There is a danger of scalding at the hot water draw-off points when the target temperatures are in excess of 60 °C. Young children and elderly persons are particularly at risk, even at lower temperatures.

Select a moderate target temperature.

When the anti-Legionella function is active, the DHW cylinder is heated to over 65 °C for at least one hour.

Inform the owner about the risk of scalding when the

anti-Legionella function is active.

Protecting the controller from damage

Make sure that the controller is protected from mois-

ture and water splashes.

Avoiding malfunctions

To avoid malfunctions, take care that

the heating installation is only operated in a tech-

–

nically perfect condition, no safety or monitoring devices have been remo-

–

ved, bridged out or disabled, faults and damage that affect safety are rectified

–

immediately.

Make the owner aware that

the controller must not be obstructed by furniture,

–

curtains or other objects if it is installed in the living room, all the radiator valves in the room where the con-

–

troller is installed must be turned fully open.

2.4 Directives, laws and standards

EN 60335–2–21

Safety of household and similar electrical appliances; Part 2: Particular requirements for storage water heaters (domestic hot water cylinders and hot water boilers) (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.

When carrying out the electrical installation, observe the regulations of the German electrical engineering association (VDE) and your power supply company (EVU).

Use standard commercial cables for wiring.

Minimum cross-section of the conductors: –

230 V supply cable, rigid conductor (pump or mixer connecting cable): 1.5 mm Low-voltage conductors

–

(sensor or bus lines): 0.75 mm

The following maximum cable lengths must not be exceeded: –

Sensor lines: 50 m

–

Bus lines: 300m

At lengths of over 10 m, 230V supply cables must be laid separately from sensor or bus lines.

Fasten the supply cables using the cable clamps in the wall mount.

Do not use the free terminals in the unit as supports for other wiring.

The controller should only be installed in dry rooms.

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 are damaged by frost.

Inform the owner as to how to ensure protection from frost.

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.

7Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

3 Equipment and functional

description

3.1 Construction and function

The controller is used for weather-compensated 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

–

VRC 630

VRC DCF

VR 90

VR 60

Fig. 3.1 System Overview

Key

VR 90 Remote control unit VR 60 Mixer module VRC DCF External sensor

If the heating installation is to be expanded with, e.g., further heating circuits, additional system components can be integrated into the complex system of the installation (¬ Fig. 3.1).

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.

8 Installation Instructions VRC 630 0020095108_00

Equipment and functional description 3

To operate them more conveniently, remote control devices can be connected for the first eight heating circuits.

Each mixer circuit can, as required, be switched between: –

Heating circuit (radiator circuit, underfloor circuit, etc.)

–

Fixed value control,

–

Return flow boost,

–

Hot water circuit (in addition to integrated hot water circuit).

Several modulating Vaillant boilers or one and twostage heating appliances can be connected using modulating bus couplers (accessory). The maximum number of boilers/heating appliances that can be connected depends on the bus coupler installed.

Bus coupler Maximum number of boilers/heating appli-

VR 30, VR 32 8 VR 31 6

Table 3.1 Maximum number of boilers/heating appliances that

can be connected

ances that can be connected

With the remote telephone contact connection (floating contact input), the operating mode of the controller can be changed from any location by telephone via the teleSWITCH telephone remote control switch.

3.2 Overview of functions

The controller provides the following options for controlling your heating installation and hot water generation:

Off

Heating installation switched off or hot water generation with active frost protection

One-time Cylinder Charging Allows the DHW cylinder to charge up once, independently of the current timer programme

Holiday function / Holiday programme Independent control of the room temperature during your absence; only in the Auto and Eco modes

Frost protection function Protection from frost damage in the Off and Eco modes (outside the time slots); The boiler must remain switched on

Heating curve

The basis of weather compensation; improves the matching of the heating output to the outside temperatures

Advance function 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 temperature by means of a heating curve

Time slot Individually settable time settings for the heating installation, the hot water generation and the operation of a circulation pump

9Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

3.3 Operating modes

By setting the operating mode, you determine the conditions under which the assigned heating circuit or hot water circuit will be controlled.

CH circuit

Operating mode

Auto The operation of the heating circuits alternates

Eco The operation of the heating circuit alternates

Heating The heating is regulated at the daytime set room

Energy save The heating circuit is regulated at the night time

Off The heating circuit is off if the frost protection

Symbol Meaning

Effect

between the Heating and Energy saving modes in accordance with a predetermined timer programme.

between the "Heating" and "Off" modes in accordance with a preset timer programme. The heating circuit is switched off during the setback period if the frost protection function (depending on the outside temperature) is not activated. The frost protection is effective outside the set time slot (¬ Chap. 3.4).

temperature.

set room temperature.

function (depending on the external temperature) is not activated.

If the symbol is displayed after the Eco or Auto mode, a time slot is active. The heating installation is producing heat.

If the symbol is displayed after the mode, no time slot is active. The heating installation is in set-back mode.

If 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.

Table 3.2 Operating modes for heating circuits

Circulation circuit and hot water circuit

Operating mode

Auto The commands for charging the DHW cylinder or

On The charging of the DHW cylinder is constantly

Off No charging of the DHW cylinder takes place. The

Table 3.3 Operating modes for the circulation circuit and the

Effect

for enabling the circulation pump are given according to a preset timer programme.

enabled. When required, the cylinder is recharged immediately. The circulation pump is constantly in operation.

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).

hot water circuit

10 Installation Instructions VRC 630 0020095108_00

3.4 Description of important functions

Time slot

25 °

20 °

Equipment and functional description 3

Target room temperature

15 °

Fig. 3.2 Automatic heating operation: Example of setting the

target room temperatures for different times of day

Night set back temp.

Time slot 1 Time slot 2 Time slot 3

04:00 16:0008:00 12:00

1 Until 06.00 hrs. a room temperature of 15 °C (set-

back temperature) is in effect.

2 The first time slot starts at 06.00 hrs:

From this point onwards a target room temperature of 21 °C is effective.

3 The first time slot ends at 09.00 hrs:

From this point onwards a target room temperature of 15 °C is effective.

4 A further two time slots of 21 °C follow.

20:00

Hour

The way in which the time slots 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 slots in which your installation heats the connected rooms to a defined temperature (¬ Target room temperature). Outside these time slots, the heating installation is controlled so that the connected rooms cool down to a defined temperature (¬ Set-back temperature). When the set-back temperature is reached, the controller ensures that the heating installation maintains this temperature until the start of the next time slot. Thus any further cooling of the apartment is prevented.

Advise the owner 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.

11Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

You have two options for defining the days for which your time slots should apply:

1st option

You can enter time slots 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 slots for each option.

You can control the hot water temperature in a connected DHW cylinder in the same way using the controller: The time slots you define specify when the hot water at your desired temperature is available. However there is no set-back temperature for hot water generation. Hot water generation is switched off at the end of a time slot.

Heating curve

Example of a heating curve

Max Flow Setpoint. in °C 90

20 15 10 5 0 -5 -10 -15 -20

Fig. 3.3 Diagram with heating curves

4.0 3.5 3.0 2.5 2.0

Outside temperature in °C

Heating curves

1.5

1.2

1.0

0.6

0.2

Example: If heating curve 1.5 is selected, a flow temperature of 75 °C is required for an external temperature of -15 °C.

Max Flow Setpoint. in °C 90

10 5 0 -5 -10 -15 -20

182022

Axis a

Fig. 3.4 Parallel offsetting of the heating curve

Outside temperature in °C

1.5

12 Installation Instructions VRC 630 0020095108_00

Make the required basic setting of the hea-

ting curve while installing the heating system.

Equipment and functional description 3

Frost protection function

The controller is equipped with a frost protection function (depends on the outside temperature). he frost protection function ensures that the heating installation is protected from frost in the Off and Eco modes (outside the time slots). If the Eco mode is set and the frost protection function (dependent on the outside temperature) is not activated, then the heating circuit will be switched off during the set-back period. The preset (night) set-back temperature is applied automatically for each heating circuit if the outside temperature falls below +3 °C.

13Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

3.5 Overview of controls

All the settings that are required for the heating installation are made on the controller. The controller is equipped with a graphic display. Plain text messages simplify operation.

Basic data

Date

Day Time Summer/Winter time

>Set day

Fig. 3.5 Overview of controls

Key

1 Menu number 2 Right hand knob,

Pick out a parameter (turn); Mark the parameter (press)

3 Left hand

Select menu (turn); Activate special function (press)

4 Menu name

knob,

30.10.09 Fr 15:37 Off

3.6 Operator guidance

You can operate the controller with the two and knobs (¬ Fig. 3.5): When you press the right hand

knob, you mark or save a parameter. When you turn the right hand

knob, you set a parameter. When you turn the left hand knob, you select a menu. When you press the left hand knob, you activate the special functions (¬ Chap. 7.7).

A plain text display facilitates operation for you and identifies menus and parameters clearly.

14 Installation Instructions VRC 630 0020095108_00

Equipment and functional description 3

Wed 02.12.09 15:43 -3 °C

HK 1 Storey 1 Eco 20 °C Storey 2 Auto 22 °C Cylinder Auto 60 °C

Basic data 1

Date Day We Time 14 : 08 Summer/Winter time Auto >Set day

HK1 3 Time programme Mon-Fri 1 6:00 – 22:00 2 7:30 – 23:30 3 7:30 – 23:30 >Select weekday/block

HK3 3 Time programme Mon-Fri 1 6:00 – 22:00 2 7:30 – 23:30 3 7:30 – 23:30 >Select weekday/block

Heating 22 °C



VRC 630

02. 12 . 09



Depending on the system configuration, you can call up and set various parameter menus for HK1... HK15.

Wed 02.12.09 15:43 -3 °C

Energy saving enabled until

VRC 630

Wed 02.12.09 15:43 -3 °C

Party function enabled

VRC 630

Wed 02.12.09 15:43 -3 °C

One-time cylinder charging enabled

VRC 630

18:30



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

HK1 5 Parameters Set-back temperature Heating curve 1,2

>Select target room temperature

Fig. 3.6 Menu structure of Operator level

15°C

Hot water 5 Parameters

Target cyl. temp.

>Select target temperature

Name 7 change HK1 <HK2> : <HK2> HK3 : HK3

> select

Code level 8 enabling Code number:

>Adjust numeric character

: 

HK1

0 0 0 0

60°C

15Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

Special functions

Wed 02.12.09 15:43 -3 °C

Maximum output function activated

Wed 02.12.09 15:43 -3 °C

Manual operation activated

Wed 02.12.09 15:43 -3 °C

HC 1 storey 1 Eco 20 °C storey 2 Auto Cylinder Auto

Code level enabling Code number:

Standard Code:

>Adjust numeric character

Heating 22 °C



VRC 630

0 0 0 0

1 0 0 0

HK1 C2 Parameters Switch-on room temperature

Depending on the system configura-

tion, you can call up and set various parameter menus for HK2...HK15.

 none

>Select mode

HK1 C2 Information Setpoint flow temp. 90 °C Current flow temp. 50 °C Pump status On

HK2 ... HK15 C2 Parameters Type: Mixer circuit Set-back temperature Heating curve 0.90 Max limit outs.temp. 20 °C >Select target room temperature

HK2 ... 15 C2 Parameters Pump delay time Minimum temperature Maximum temperature Max. preheating 0 min > Set minutes

15°C

0 Min

15 °C 15 °C

HK1 C2 Parameters Type Direct circuit Set-back temperature Heating curve 1.2 Max limit outs.temp. 21°C >Select target room temperature

HK1 C2 Parameters Minimum temperature Maximum temperature Max. preheating 0 min

>Select flow temperature

15°C

90 °C

Fig. 3.7 Menu structure of Installer level

16 Installation Instructions VRC 630 0020095108_00

HK2 ... 15 C2 Parameters Switch-on room temperature  none

Remote control No >Select mode

HK2 ... HK15 C2 Information Setpoint flow temp. 90 °C Current flow temp. 50 °C Pump status On Mixer status Open

Equipment and functional description 3

Hot water C3 Information Current DHW temp. 56°C Status load pump Off Circulation pump On

Cylinder charging circuits C4 Parameters Charging pump overrun Parallel charging Off

> Set duration

Cylinder charging circuits C4 Parameters Anti-legionella function Legionella start 4:50

>Select weekday/block

Total system C7 Parameters Max. pre-switch off Frost prot. delay 1 hour AT through-heating Off Fast temp increase 0 K > Set maximum duration

 5 min

OFF

15 mins



Special function C9 teleSWITCH HK1 HK2 : Energy save HK3 : Energy save Cylinder : Off > Select effect

Special function C9 Floor drying

<HK2> HK3 0 0 °C

>Set start day

Service C11

Phone Service 25 . 11 . 09 Temperature fault detection after Off > Adjust number

Code level C11 change Code number:

Accept change No >Adjust numeric character



 1 2 3 4

Energy save

: 

Day Temp.  0

0 °C

Installation Assistant A1 Language selection Language

>Select language

Installation Assistant A4 System configuration Number of boilers Appliances are 1-stage Appliance at Stage 1-2

>Select

Installation Assistant A5 System configuration Shut-off valves No Isolation switch No Reverse boiler sequence Off

>Select

DE German



2

Heating appliance C8 Parameters Switching hysteresis Minimum temperature 15 °C Cylinder starting output 1

> Select hysteresis

Heating appliance C8 Cascading parameters Switch-on delay Switch-off delay 5 min

> Set time delay

Heating appliance C8 Information System set temp. 90 °C Low loss header temp. ACTUAL 30 °C Status Heating mode

Boiler sequence 7 8

 8 K

 5 min

Fig. 3.7 Menu structure of Installer level (continued)

Tool C12

Temperature correction Outside temperature Current room temperature 0.0 K Display contrast 11 >Select correction value

Software versions C15

I/O card 2 4. 23 User Interface 1 4. 27

 0.0 K

Installation Assistant A6 System configuration HK1 <HK2> Mixer circuit HK3 Mixer circuit Cylinder Cylinder charge >Select

Installation Assistant A7

Component VRC 630 Actuators Off Sensors VF1 60 °C Heater Off > select

Direct circuit



17Installation Instructions VRC 630 0020095108_00

3 Equipment and functional description

3.7 Operating levels in the controller

The controller has two operating levels: the Operator level and the Installer level. Each operating level contains several display screens where the parameters can be displayed, set or changed.

The number of menus displayed depends on

the configuration of the heating installation.

Operator level The operator level is the operating level for the user, and displays the basic parameters that he can adapt to his particular needs during normal operation without any special prior knowledge.

The operator level comprises the basic display, Menus tions (Energy-saving function, Advance function, One-time cylinder charging).

Installer level The Installer level is the operating level for the heating engineer. The system-specific parameters, with which the heating engineer configures and optimises the heating installation, are set in the Installer level. These system-specific parameters may only be set and changed by a heating engineer. The Installer level is therefore protected by an access code. The system-specific parameters are thus protected from unintentional adjustment.

For this reason it is possible that there are more menus described in this manual than your controller displays.

1 ... 7 and the menus for the special func-

3.8 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. 3.9).

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 slots, set-back temperatures and heating curves entirely to your individual requirements.

The menus in the Installer level are identified with a letter and a number at the top right (e.g. C2). You can only view the system-specific parameters in the Installer level menus (¬ Chap. 7.3).

The Installer level comprises Menus C1 to C15, the menus for the Installation Assistant (A1 to A7) and the menus for the service functions (e.g. maximum output function).

18 Installation Instructions VRC 630 0020095108_00

3.9 Menus in different operating situations

In the Operator level

Equipment and functional description 3

Wed 02.12.09 15:43 -3 °C

HK1 HK2 Auto 20 °C HK3 Auto HK4 Eco 22 °C

Basic data

Date Day We Time Summer/Winter time >Set day



Auto 20 °C

20 °C

VRC 630



02 . 12 . 09

14 : 08 Off

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 quickly. If more than two heating circuits are connected, these are displayed in sequence when you turn the right hand 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 7.2.1 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 knob to access the next display lines.

Example: Menu 1 You can make all the relevant settings for the heating installation on the Operator level in Menus ( 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.

1 to 7.

knob.

Wed 02.12.09 15:37 - 15 °C

Energy saving enabled until

VRC 630

In the Installer level

HK1 C2 Parameters Type Direct circuit Set-back temperature Heating curve 1.20 Max limit outs.temp. 20°C >Select target room temperature

Table 3.4 Menu types

The settable parameters are displayed on a grey background.



18:30

15 °C

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.

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.

19Installation Instructions VRC 630 0020095108_00

4 Assembly

The controller can be mounted directly to the wall in the wall mount or as a remote control device with the VR 55 mounting box (accessory).

The controller is supplied with one of the following external sensors: VRC 693: connected to the controller via a 2-core cable, VRC DCF:

4.1 Basic installation steps

1. Preparation:

2. Installation of the controller:

3. Commissioning:

4. Handing over the appliance to the owner

A few comments regarding this: The controller enables the control of heating installations with different components. To adapt the control system to the conditions on site, you must perform the electrical installation according to the components required in the system. Further information on the electrical installation can be found in Chapter 5.

connected to the controller via a 3-core cable.

Read the installation instructions.

– –

Check the scope of delivery.

–

Fit the wall mount and the central controller

–

Fit the external sensor (VRC DCF or VRC 693)

–

Carry out the electrical installation

–

Make the basic settings on the central controller

–

Make the system-specific settings.

4.3 Accessories

You can use the following accessories to extend the modular bus control system:

VR 55 mounting box

The range of accessories includes a mounting box, with which the operating unit can be used as a remote control device with the ProE terminal strips, which means regardless of where the central wall mount is installed. Communication is effected via the eBUS. A bezel is supplied with the accessories which can be plugged into the central wall mount instead of the control unit.

VR 60 mixer module

The heating system can be extended by two mixer circuits using the mixer module. A maximum of six mixer modules can be connected. A unique bus address is set on the VR 60 using the rotary switch. The heating programmes and also all the required parameters are set via the central controller using eBUS. All heating circuit connections (sensors, pumps) are made directly to the mixer module with ProE plugs.

VR 30 modulating bus coupler

The modulating bus coupler allows the main controller to communicate with several Vaillant boilers. If more than two heaters are to be connected in cascade, a bus coupler is required for each heater to connect it to the eBus (Western socket). Up to eight VR 30 bus couplers can be connected. The bus coupler is installed directly in the boiler's electronic box; communication with the controller is effected via the eBUS. A unique bus address is set on the VR 30 using the rotary switch. All other settings are made on the central controller.

4.2 Scope of delivery

The controller is supplied as a kit.

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)

1 Pack of screws/wall plugs

2 Pack of cable clamps

Table 4.1 Material supplied with VRC 630 kit

Use Table 4.1 to check that all the components have

been delivered with the controller kit.

20 Installation Instructions VRC 630 0020095108_00

VR 31 switching bus coupler

The VR 31 bus coupler allows the VRC 630 central controller to communicate with a switching heating appliance. With this combination, the communication between the controller and the boiler basically takes place via the eBUS. When a cascade is constructed, a separate bus coupler is required for each heater. Up to six bus couplers can be connected.

VR 32 modulating bus coupler

The VR32 modulating bus coupler allows the main controller to communicate with several Vaillant eBUS boilers. If several boilers are to be cascaded, a bus coupler is required from the 2nd boiler to establish the connection between the eBUS and the boiler (Western socket). You can connect up to eight VR 32s. The bus coupler is installed directly in the boiler's electronic box; communication with the controller is effected via the eBUS. You set a unique bus address on the VR 32 using a rotary switch. All other settings are made on the main controller.

Assembly 4

VR 90 Remote control unit

A separate remote control device can be connected for the first eight heating circuits (HK1 … HK8). It allows the operating mode and target room temperature to be set, and takes into account the actual room temperature measured by the built-in room sensor, if necessary. It is also possible to adjust the parameters for the associated heating circuit (time programme, heating curve etc.) and to select the special functions (party etc.). It is also possible to query the heating circuit, and show maintenance and fault messages for the heater. Communication with the heating control unit is via the eBus.

VR 10 standard sensor

Fig. 4.1 VR 10 standard sensor

Additional sensors are required as flow, return, collector or cylinder sensors, depending on the configuration of the system. A standard sensor is available in the Vaillant accessory range to this end. The VR 10 standard sensor is so designed that it can be used as an immersion sensor, e.g. as a cylinder sensor in a cylinder sensor tube, or as a flow sensor in a hydraulic switch. Using the enclosed cable tie, the VR 10 standard sensor can also be fastened to the flow or return pipe as a contact sensor. To ensure good heat transfer, the sensor is flat on one side. We also recommend that the pipe with the sensor is insulated to ensure optimum temperature measurements.

4.5 Checking the scope of delivery

Check the material supplied for completeness

(¬ Table 4.1).

4.6 Dispose of the packaging

The disposal of the transport packaging is part of the installation of the controller.

Dispose of the transport packaging in a professional

manner.

4.7 Observe the requirements for the installation location

Controller

The controller should only be installed in dry rooms.

If you mount the controller on a wall, position it so

that correct measurement of the room temperature is assured; e.g. on an internal wall of the main living room, at a height of approx. 1.5 m If thermostatic control is activated, advise the opera-

tor that, in the room where the controller is mounted, all the radiator valves must be fully open.

External sensor

Make sure that the installation location:

is neither shielded from the wind nor particularly

–

draughty, is not in direct sunlight,

–

is facing north or north-west.

– Take care that the external sensor has a clearance of

at least 1 m from any openings in the outside wall from which warm air flows constantly or occasionally. Make sure that, on buildings up to three storeys high,

the external sensor is mounted 2/3 of the way up and on buildings with more than three storeys, the sensor is mounted between the 2nd and the 3rd. storeys.

"teleSWITCH" telephone remote switch

The teleSWITCH telephone remote switch (Part No. 300679) is connected to the telephone line. Using the telephone switch it is possible to change the operating mode of individual heating circuits or the cylinder circuit from any desired location.

4.4 Unpacking the unit

Carefully remove the packaging, taking care not to

damage any parts of the unit.

21Installation Instructions VRC 630 0020095108_00

4 Assembly

4.8 Installing the VRC 630 heating controller

4.8.1 Installing the controller with a wall mount

The material supplied includes the controller and the wall mount with the electrical connector strips. The connector strips are implemented in System ProE technology. All customer connections must be made to the connector strips.

Danger!

Danger to life from live connections!

The mains switch does not disconnect the power supply completely.

Switch the power supply off before working on the unit.

Secure the power supply against being switched on again.

Fig. 4.3 Installation of the wall mount

Key

3 Fixing hole 4 Cable opening 5 Cable clamps 6 Cable feedthrough

Caution!

Risk of short circuits!

If too much insulation is removed there will be a risk of short circuits to the circuit board if the cables have not been attached properly to the plug.

Remove a maximum of 30 mm of insula-

tion from cables carrying 230 V for connection to the ProE plug. Take care to wire up correctly.

Fig. 4.2 Opening the wall mount

Key

1 Screw 2 Housing cover

The housing cover comprises a single part.

Loosen screw (1) on the upper side of the housing.

Flap the housing cover (2) downwards. Take the housing cover off its hinge and remove it.

22 Installation Instructions VRC 630 0020095108_00

Mark all three fixing holes (3) and drill the holes.

Select the wall plugs according to the condition of the

wall, and screw the wall mount tight. Next fit the external sensor and carry out the electri-

cal installation (¬ Chap. 5).

Assembly 4

4.8.2 Installing the controller as a remote control device

If you want to mount the controller on the wall as a remote control unit with thermostatic control, take note of the following:

Required accessory:

–

You will need the VR 55 wall mounting box (accessory, not included in kit). A cover for the wall mount is supplied together with the VR 55 mounting box.

–

Installation location: The best place for installation is usually in the main living room on an inside wall at a height of approx. 1.5 m.

Mount the controller so that it can sample the circulating room air, unhindered by furniture, curtains or other objects.

Choose a location where the room thermostat 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

Lay the electrical lines up to the boiler expediently

before installing the controller.

installed if room thermostat control is activated. Point this out to the owner.

Danger!

Danger to life from live connections!

The mains switch does not disconnect the power supply completely.

Switch the power supply off before wor-

king on the unit. Secure the power supply against being

switched on again.

Fig. 4.4 Installation as a remote control device

Key

1 Controller 2 Receptacles 3 Cable feedthrough 4 Mounting holes

Switch off the power.

Secure the power supply against being switched on

again. Open the wall mount using a screwdriver.

Remove the housing cover.

Take out the controller.

Drill two 6 mm fixing holes (3) for the VR 55 moun-

ting box (¬ Fig. 4.4). Insert the wall plugs supplied.

Pass the connecting cable through the duct (3).

Attach the mounting box to the wall with the two

screws provided. Connect the connecting cable (¬ Fig. 4.3).

Place the controller on the mounting box so that the

pins on the back of the top part fit into the receptacles (2). Push the controller (1) on to the mounting box until it

engages. Insert the supplied cover in the wall mount.

Fit the cover.

23Installation Instructions VRC 630 0020095108_00

4 Assembly

4.8.3 Installing the DCF receiver with integrated external sensor

Caution!

Danger of material damage as a result of

The DCF receiver with integrated external sensor may only be opened by a qualified tradesman and installed in accordance with the illustrations. The current safety regulations must be observed as well as the installation instructions for the boiler and the heating controller.

incorrect fitting!

Incorrect fitting can cause damage to the unit and/or to the wall of the building, e.g. from dampness.

Observe the cable routing described and the correct installation position of the external sensor.

Drill the wall penetration with a slope to the outside.

Run the connecting cable with a loop to catch drips.

Pay attention to the sealing of the DCF receiver.

1/3

>1 m

>2 m

2/3

2 3

Fig. 4.6 Installation location for the DCF receiver

Key

1 Mounting apertures 2 Cap nut for cable entry point 3 3-core connecting cable with loop to catch drips 4 Wall base 5 Housing cover

Carefully plan any holes required for fixing and cable

routing before drilling them. Mark the position on the wall. Observe the cable rou-

ting for the external sensor. Route the connection cable (3) on the customer side

with a slight incline to the outside and with a loop to catch drips. Remove the casing cover (5) from the external sen-

sor. Drill two holes 6 mm diameter to match the fixing

apertures (1). Insert the wall plugs supplied.

Fix the wall socket (4) to the wall with two screws.

The cable entry must point downwards.

Fig. 4.5 Installation location for the DCF receiver

Observe the requirements for the installation location

(¬Chap. 4.6)

24 Installation Instructions VRC 630 0020095108_00

N, NW

~ 40 mm

4,5 - 10 mm

Fig. 4.7 DCF receiver cable connection

Unfasten the cap nut (2) slightly and push the con-

necting cable through the cable entry from below. The electrical installation is carried out as described

in Chapter 5.4. Re-tighten the cap nut (2). The packing in the cable

entry is matched to the diameter of the cable used (Cable diameter: 4.5 mm to 10 mm). Lay the gasket between the wall socket and the hou-

sing cover. Push the housing cover on to the wall socket until it

clicks in position.

Assembly 4

4.8.4 Fitting the VRC 693 external sensor

This equipment may only be opened by a suitably qualified heating engineer and installed as shown in the diagrams. The current safety regulations and the installation instructions for the boiler and the heating controller must be observed.

Caution!

Material damage caused by improper

installation!

Incorrect fitting can cause damage to the unit and/or to the wall of the building, e.g. from dampness.

Observe the cable routing described and the correct installation position of the external sensor.

Drill the wall penetration with a slope to the outside.

Run the connecting cable with a loop to catch drips.

Pay attention to the sealing of the DCF external sensor.

Normally, the synchronisation time is approx. 5 minutes but, depending on the local and structural conditions as well as the weather, can take up to 20 minutes.

1/3

>1 m

2/3

N, NW

Fig. 4.8 Installation location for the VRC 693 external tempe-

rature sensor

It can be installed either in or on the wall, depending on the accessibility of the location.

25Installation Instructions VRC 630 0020095108_00

4 Assembly

5 4

2 3

Fig. 4.9 Installation of the VRC 693 external sensor

Key

1 Mounting apertures 2 Cap nut for cable entry point 3 2-core connecting cable with loop to catch drips 4 Casing 5 Housing cover

Carefully plan any holes required for fixing and cable

routing before drilling them. Observe the requirements for the installation location

(¬Chap. 4.7) Remove the casing cover (5) from the external sen-

sor. Mark the position on the wall. Observe the cable rou-

ting for the external sensor. Drill two holes 6 mm diameter to match the fixing

apertures (1). Insert the wall plugs supplied.

Route the connection cable (3) on the customer side

with a slight incline to the outside and with a loop to catch drips. Fix the housing (4) with 2 screws through the fixing

holes (1). Run the connecting cable on the customer side (3),

using cable of at least 2 x 0.75 mm2 cross-section. Pull the connecting cable in through the cable entry

(2) from below. By careful work and by appropriate cable routing,

ensure that the outside sensor and the building are both water-tight. The electrical installation is carried out as described

in Chapter 5.4. Make sure that the seal is correctly seated in the

cover of the housing (5). Press the cover (5) on to the housing (4).

Fix the cover (5) to the housing (4) with the screws

supplied.

26 Installation Instructions VRC 630 0020095108_00

Electrical installation 5

5 Electrical installation

The electrical connection must be done by an

accredited specialist company, which will be

responsible for complying with the existing standards and guidelines. We specifically draw your attention to VDE Regulation 0100 and the regulations of the relevant EVU.

Danger!

Danger to life from live connections!

When working in the control cabinet of the boiler there is a danger to life from electric shock. The mains switch does not disconnect the power supply completely. Mains connection terminals L and N remain live even if the boiler main switch is turned off!

Switch the power supply off before wor-

king on the unit. Secure the power supply against being

switched on again.

Caution!

Material damage caused by short circuits!

A maximum of 30 mm of the insulation may be removed from the ends of cables carrying mains voltage (230 V) when fitting the ProE plug. If more insulation is removed there will be a risk of short circuits on the circuit board if the cables are inadvertently connected improperly to the plug.

Remove a maximum of 30 mm of insula-

tion to fit the ProE plug.

Take care to wire up correctly.

The nominal voltage of the mains must be

230 V. If the mains voltage is more than 253 V or less than 190 V, functional impairment is possible. The unit must be connected to a permanent supply line and an isolating device with at least 3 mm contact separation (e.g. fuses, power switches).

5.1 Connecting a boiler without eBUS

Caution!

Malfunction caused by incorrect wiring!

Open the control box of the boiler as described in the

installation instructions.

Fig. 5.1 Connecting the boiler

Carry out the wiring of the boiler with the connecting

cable (min. 3x 0.75 mm Connect the mains feed from the boiler to the wall

mount with a mains cable.

If the maximum total current of 6.3 A or the maximum contact load of 2 A is exceeded within the system, the consumer(s) must be wired via a contactor.

If more than two boilers without eBUS are to be connected, all the boilers must be connected via the VR 30 bus coupler. Terminals 7/8/9 are not activated.

Connect all the boilers via a VR 30 bus

coupler.

) (¬ Fig. 5.1).

The VRC 630 has a mains switch which can

be used to switch off the internal electronics and all connected actuators (pumps, mixers) for testing or maintenance purposes.

Observe the corresponding regulations.

27Installation Instructions VRC 630 0020095108_00

5 Electrical installation

5.2 Connecting a boiler with eBUS

Open the control box of the boiler as described in the installation instructions.

Fig. 5.2 Connecting the boiler

Caution!

Malfunction caused by incorrect wiring!

The eBUS connection must be used on boilers with eBUS, as the system will not function otherwise.

Do not use terminals 7/8/9 in parallel with eBUS.

The controller has a mains switch which can

be used to switch off the internal electronics

If the maximum total current of 6.3 A or the maximum contact load of 2 A is exceeded within the system, the consumer(s) must be wired via a contactor.

External units or units (up to six are possible) which are activated in stages can each be connected via a VR 31 bus coupler.

and all connected actuators (pumps, mixers) for testing or maintenance purposes.

With cascades, connect all the other boilers via a VR 32.

Enter the corresponding unit number on the address switch in the VR 32 bus coupler. –

Example: "2" for the 2nd boiler,

"3" for the 3rd boiler, etc.

Caution!

Malfunction caused by incorrect polarity!

Wire up the connections to the boiler as shown in

Fig. 5.2. The eBUS line (at least 2x 0.75 mm by the customer.

28 Installation Instructions VRC 630 0020095108_00

Incorrect polarity prevents communication via the eBUS and can result in a short circuit. The controller will no longer be able to control the heating installation.

Pay attention to the correct polarity.

) must be supplied

Electrical installation 5

5.3 Wiring

The controller detects the sensors automatically. The connected heating appliances are configured automatically. Any connected heating circuits must be configured manually in accordance with the system combination.

Wire the components according to the corresponding

wiring diagram.

Potential loss of comfort.

The target room temperature might not be

Connect sensor VF1 to measure the common flow

temperature.

Always connect sensor VF1 in cascade installations.

5.3.1 Connecting a mixer circuit as a cylinder

reached.

charging circuit

When a circulation pump is connected in a mixer circuit which has been reconfigured as a cylinder charging circuit, the circulation pump always has the same timer programme as the reconfigured mixer circuit.

Cylinder charging circuits and connected circulation pumps always have the same operating mode. That is, the operating mode which is set for the cylinder charging circuit also applies in general for the circulation pump.

When used with a VIH-RL, the VIH-RL connection terminals on the circulation pump must be used, as the VIHRL takes over all the hot water functions.

Fig. 5.3 Connecting a mixer circuit as a cylinder charging cir-

cuit

Key

1 Cylinder charging pump 2 Circulation pump 3 Cylinder sensor

Any mixer circuit in the system can be used alternatively as a cylinder charging circuit.

Wire the mixer circuits as shown in Fig. 5.3.

5.3.2 Peculiarities of the circulation pump

connection

The controller has a separate connection for a circulation pump. This circulation pump is assigned to the cylinder charging circuit which has not been reconfigured. A settable timer programme, independent of the cylinder charging programme, can be used for this circulation pump.

29Installation Instructions VRC 630 0020095108_00

5 Electrical installation

5.3.3 Inputs for special functions

The controller has special inputs (¬Fig. 4.4), which can be used for special functions if necessary.

Circulation pump input 1xZP

You can connect a floating pushbutton to the 1xZP input. When the button is operated briefly, the circulation pump is run for a fixed period of 5 minutes, independently of any set timer programme.

TEL input

You can connect a floating contact (switch) to this input. When the switch is operated, the operating mode of the connected heating circuits, hot water circuits and the circulation pump is changed, depending on the setting in Menu C9.

If you connect a teleSWITCH (accessory) to this input, the operating mode of the connected heating circuits, hot water circuits and the circulation pump can be changed remotely over the telephone network, depending on the setting in Menu C9.

30 Installation Instructions VRC 630 0020095108_00

5.3.4 Connector assignment

Electrical installation 5

Mains connection 230 V~

Output

Mains connection 230 V~

Input

Cylinder charging pump/

Diverter valve

Circulation pump

Direct circuit pump

Mixer, heating circuit 2

Pump, heating circuit 2

Inlet sensor, collective temperature

Inlet sensor heating circuit 2

Inlet sensor heating circuit 3

Temperature sensor (only with isolation switching on switching boilers)

Cylinder sensor

Mixer heating circuit 3

Pump heating circuit 3

Connection for switching

boiler stage 1 Cylinder charging enable

Connection for switching

boiler stage 2

Diverter valve

Fig. 5.4 Connector assignment

Switching contact Circulation circuit

Connection for teleSWITCH remote telephone contact

eBUS connection

VRC DCF outdoor sensor

(MF-TEC replacement only)

Connection for modulating boiler1

Connection for modulating boiler2

31Installation Instructions VRC 630 0020095108_00

5 Electrical installation

5.3.5 Peculiarities if a domestic hot water cylinder

is connected

Example 1

If a DHW cylinder is connected directly to the boiler, note that: In Installation Assistant Menu A5: – with a boiler, the Preference parameter or – with a cascade, the Rev. seq. control parameter is always set to Yes. Only in this way can trouble-free operation be guaranteed. This does not apply to additional reconfigured hot water circuits which are incorporated after the low-loss header.

The heating system consists of:

1 heat source

–

(e.g. wall mounted gas boiler, connection via eBUS)

1 DHW cylinder

–

1 uncontrolled heating circuit

–

(direct circuit, control via remote control device)

2 controlled heating circuits

–

(2 underfloor circuits, control via remote control

devices)

32 Installation Instructions VRC 630 0020095108_00

WW KW

ZIR

VF1

Electrical installation 5

VF2 VF3

HK1-P HK2-P HK3-P

HK2 HK3

Fig. 5.5 Wall-mounted boiler with VRC 630

Key

WW DHW cylinder ZIR Circulation pump SP Cylinder sensor KW Cold water VF 1 Flow sensor 1 VF 2 Flow sensor 2 VF 3 Flow sensor 3 HK 1-P Heating circuit pump 1 HK 2-P Heating circuit pump 2 HK 3-P Heating circuit pump 3 HK 2 Mixer HK 3 Mixer

Caution - illustration shows principle only!

This system schematic does not include all

the shut-off and safety devices necessary for professional assembly. System-specific planning is required!

33Installation Instructions VRC 630 0020095108_00

5 Electrical installation

Example 2

If the DHW cylinder is installed downstream of the lowloss header, you will have to set the Rev. seq. control parameter in Installation Assistant Menu A5 to No.

On boilers with a priority switching valve for hot

water generation installed, unplug the connector to

the valve.

VR 32

VR 32 VR 32

2 BUS BUS BUS BUS

222

The heating system consists of:

- 4 heat sources (e.g. 4 wall mounted gas boilers, connection via eBUS)

- 1 DHW cylinder (connected downstream of the low-loss header)

- 1 uncontrolled heating circuit (direct circuit, control via remote control device)

- 4 controlled heating circuits (4 underfloor circuits, control via remote control devices)

VR 60

VF2

HK1-P HK2-P HK3-P

HK2 HK3

VF1

VF3 VFa VFb

HKa-P

HKa

HKb-P

HKb

Fig. 5.6 Wall-mounted boilers with VRC 630 VIH downstream

of low-loss header

LP/UV1

WW ZIR KW

34 Installation Instructions VRC 630 0020095108_00

Key

VR 32 VR 32 bus coupler VR 60 VR 60 mixer module BUS eBUS WW DHW cylinder ZIR Circulation pump SP Cylinder sensor KW Cold water VF 1 Flow temperature sensor VF 2 Flow temperature sensor, Heating circuit 2 VF 3 Flow temperature sensor, Heating circuit 3 VFa Flow temperature sensor, Mixer circuit a VFb Flow temperature sensor, Mixer circuit b HK 1-P Pump for direct circuit HK 2-P Pump for heating circuit 2 HK 3-P Pump for heating circuit 3 HKa-P Heating pump for mixer circuit HKb-P Heating pump for mixer circuit HK 2 Mixer for heating circuit 2 HK 3 Mixer for heating circuit 3 HK a Mixer for mixer circuit a HK b Mixer for mixer circuit b LP/UV1 cylinder charging pump/Diverter valve

Caution - illustration shows principle only!

This system schematic does not include all

the shut-off and safety devices necessary for professional assembly. System-specific planning is required!

Electrical installation 5

You can connect the first boiler directly to the eBUS on the controller. Note the polarity when doing this.

From the second boiler onwards, a bus coupler is necessary.

230V~

RT 230V~

Fig. 5.7 E-box for connecting the VR 32 bus coupler

Key

1 eBUS interface to the VR 32 bus coupler 2 eBUS (only use without the VR 32 for the first boiler)

RT 24V= BUS Anl.-

NL 9

87 + -5

Take note of the VR 32 bus coupler manual.>

Therm.

35Installation Instructions VRC 630 0020095108_00

5 Electrical installation

Example 3

The heating system consists of:

- 1 heat source (e.g. 2 icoVIT floor standing boilers, connection via eBUS)

- 1 domestic hot water cylinder

- 1 uncontrolled heating circuit (direct circuit, control via remote control device)

- 2 controlled heating circuits (2 radiator circuits, control via remote control devices)

VF2 VF3

Fig. 5.8 VRC 630 floor-standing unit 1

VF1

HK1-P HK2-P HK3-P

HK2 HK3

WW ZIR KW

LP/UV1

36 Installation Instructions VRC 630 0020095108_00

Key

WW DHW cylinder ZIR Circulation pump SP Cylinder sensor KW Cold water VF 1 Flow temperature sensor VF 2 Flow temperature sensor, Heating circuit 2 VF 3 Flow temperature sensor, Heating circuit 3 HK 1-P Pump for direct circuit HK 2-P Pump for heating circuit 2 HK 3-P Pump for heating circuit 3 HK 2 Mixer for heating circuit 2 HK 3 Mixer for heating circuit 3 LP/UV1 cylinder charging pump/Diverter valve

Caution - illustration shows principle only!

This system schematic does not include all

the shut-off and safety devices necessary for professional assembly. System-specific planning is required!

Electrical installation 5

37Installation Instructions VRC 630 0020095108_00

5 Electrical installation

Example 4

The heating system consists of:

- 1 heat source (e.g. 1 ecoCRAFT floor-standing unit)

- 1 DHW cylinder

- 1 uncontrolled heating circuit (direct circuit, control via remote control device)

- 1 controlled heating circuit (1 radiator circuit, control via remote control device)

VF2 VF3

Fig. 5.9 VRC 630 with an ecoCRAFT

VF1

HK1-P HK2-P HK3-P

HK2 HK3

LP/UV1

WW ZIR KW

38 Installation Instructions VRC 630 0020095108_00

Key

Caution - illustration shows principle only!

This system schematic does not include all

the shut-off and safety devices necessary for professional assembly. System-specific planning is required!

Electrical installation 5

39Installation Instructions VRC 630 0020095108_00

5 Electrical installation

Example 5

The heating system consists of:

- 2 heat sources (e.g. ecoCRAFT)

- 1 VR 60 mixer circuit module

- 1 DHW cylinder

- 1 uncontrolled heating circuit (direct circuit, control via remote control device)

- 2 regulated heating circuits (1 floor circuit, 1 radiator circuit, control via remote control device)

VR 60

22 BUS BUS

VR 32

Fig. 5.10 VRC 630 with two ecoCRAFTs

VF1

VF2

HK1-P HK2-P HK3-P

HK2 HK3

VF3 VFa VFb

LP/UV1

HKa-P

HKa

HKb-P

HKb

WW ZIR KW

40 Installation Instructions VRC 630 0020095108_00

Electrical installation 5

Key

Caution - illustration shows principle only!

This system schematic does not include all

the shut-off and safety devices necessary for professional assembly. System-specific planning is required!

5.4 Connecting the DCF receiver

Caution!

Malfunctions caused by incorrect

Abb. 5.11 Connecting the DCF receiver

installation!

Any external sensor connected to the boiler will be ignored.

Connect the external sensor to the control-

ler.

left: with the external sensor (VRC DCF) supplied, right: special solution with the VRC 693 external sensor

If no radio signal can be received at the location where the external sensor is installed, a solution using the VRC 693 external sensor is required.

Connect the external sensor to the controller.

Wire the DCF receiver as shown in Fig. 5.11.

If you have fitted the VRC DCF external sensor, note that:

Normally, the synchronisation time for radio recep-

–

tion is approx. 5 minutes but, depending on the local and structural conditions as well as the weather, can take up to 20 minutes.

41Installation Instructions VRC 630 0020095108_00

5 Electrical installation

5.5 Connecting accessories

The following accessories can be connected: –

Up to eight remote control devices to control the first eight heating circuits.

–

Up to six mixer modules to extend the system by 12 system circuits (factory pre-set as mixer circuits).

5.5.1 Connecting the remote control device

The remote control devices communicate with the heating controller via 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 run the eBus from component to component (¬Fig. 5.8). This means that the cables can be interchanged without impairing communication.

5.5.2 Connecting further mixer circuits

eBUS

Fig. 5.13 Connecting further mixer circuits

Even the communication with the mixer modules takes place only via the eBUS. The system structure is shown in Fig. 5.13.

When installing, observe the same procedure as for

connecting the remote control units.

eBUS

Fig. 5.12 Connecting remote control devices

All eBus connector plugs are designed to allow you to wire at least 2 x 0.75 mm refore recommend using 2 x 0.75 mm

per connection lead. We the-

for the eBus

lines.

5.6 Connecting several heaters (cascade)

The control system permits a cascade connection of up to:

8 boilers via VR 30 or VR 32 bus couplers

–

or 6 boilers via VR 31 bus couplers

– within a system.

42 Installation Instructions VRC 630 0020095108_00

VR 30

Electrical installation 5

5.6.1 Connecting modulating heating appliances

without eBUS

Fig. 5.14 Connecting a double cascade

If three or more boilers are to be connected, the use of VR 30 modulating bus couplers is required.

Connect a double cascade directly to the wall mount (¬Fig. 5.14).

Install the bus coupler directly into the boiler (following the instructions enclosed with the coupler).

5.6.2 Connecting several modulating heating appliances with eBUS

eBUS

Fig. 5.15 Connecting more than 2 heaters in cascade

If more than two boilers are to be connected in a cascade, a VR 30 modulating bus coupler (accessory) is required for each boiler.

Fig. 5.16 Connecting more than 2 boilers in cascade

Connect the first boiler directly via eBUS.

Pay attention to the correct polarity.

> >

From the 2nd eBUS boiler onwards, use a VR 32 modulating bus coupler for the connection.

VR 31, VR 32 and VR 30 bus couplers cannot

be mixed in use.

Use either VR 31 or VR 32 or VR 30 bus couplers

throughout. Make sure that terminals 7/8/9 on the controller are

not connected to anything.

43Installation Instructions VRC 630 0020095108_00

5 Electrical installation

5.6.3 One and two stage heating appliances

VR 31 switching bus couplers must be used if more than one one-stage or two-stage heating appliance is connected. One bus coupler is required for each of the appliances to be connected.

Fit the bus coupler to the boiler connecting block.

If this is not possible:

Install a wall mounting box.

The wall mounting box must be provided by the customer. Fit the bus coupler in the wall mounting box.

Up to six VR 31 modules can be used.

5.7 Completing the electrical installation of the controller

Pass the cables carrying low voltage

(e.g. sensor lines) behind the wall mount and through the upper cable aperture (¬ Fig. 4.3, (6)). Pass the cables carrying mains voltage (230 V)

through the lower cable duct (¬ Fig. 4.3, (4)). Fix all cables with the accompanying cable clamps

(¬ Fig. 4.3, (5)). Fit the housing cover (¬ Fig. 4.2, (2)).

Connect the controller to the power supply.

44 Installation Instructions VRC 630 0020095108_00

Start-up 6

6 Start-Up

Take note of the manuals for the boilers

during commissioning.

Note that during commissioning, the first thing the

controller does is to perform an automatic system configuration. All the connected system components, including the heat sources, are activated sequentially and automatically detected.

Preparatory steps

You must carry out the following steps so that the controller can detect all the connected system components, including the heat sources, and perform a full system configuration:

Start up the heat source(s) and all the system components (e.g. VR 60 mixer modules).

The following does not apply if atmoVIT, atmoCRAFT, iroVIT or ecoVIT are in use:

On boilers with an integral pump, set the Charge Pump Overrun to the maximum value by setting diagnostic point d.1 on the boiler to "–".

The following applies only to cascade systems but not where atmoVIT, atmoCRAFT, iroVIT or ecoVIT are in use:

Set the maximum burner anti-cycling time by setting diagnostic point d.2 on the boiler to 5 minutes.

If diagnostic point d.14 is available (depends on the boiler variant): Select an uncontrolled pump characteristic which corresponds to the heating installation at boiler diagnostic point d.14.

6.1 Switching on the controller

Caution!

Material damage caused by frost!

Make sure that the time and date are set correctly so that the preset timer programmes and holiday programme will work correctly and the next servicing appointment can be monitored.

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 on the controller to the "I" position.

If the external sensor on the 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.

Fig. 6.1 Switching the controller on/off

Key

1 Rocker switch

Press the rocker switch (1) to switch the controller

on/off.

45Installation Instructions VRC 630 0020095108_00

6 Start-up

6.2 Automatic initial start-up

When the controller is switched on, the Installation Assistant starts automatically, analyses the system configuration and displays Menu A1 for language selection (¬ Chap. 7.4.1).

Check and, if necessary, change the language setting in Menu A1 (¬ Chap. 7.4.1).

Configuration of the heating installation

Check and, if necessary, change the system configuration in Menu A4 (¬ Chap. 7.4.2).

Setting the number and type of boilers (¬ Chap. 7.4.2)

Installation Assistant A4 System configuration Number of boilers

Boilers are



1 modulated

Boilers on 7-8-9

>Select

Adjustable Parameters

Number of boilers

Remarks Setting range

(only if no bus coupler has been detected)

1 or 2

Setting the preference

Check and, if necessary, change the system configu-

ration in Menu A5 (¬ Chap. 7.4.3).

Installation Assistant A5 System configuration Preference



> Select

Turn the left hand

Make all the necessary settings.

knob until Menu A5 is displayed.

Determining the type of use of the heating circuits

(¬ Chap. 7.4.4)

Check and, if necessary, change the type of use of

the heating circuits in Menu A6 (¬ Chap. 7.4.4).

Installation Assistant A6 System configuration HK1



Direct circuit HK2 Mixer circuit HK3 Mixer circuit Cylinder Cyl. charging circuit >Select

Boilers are (only if VR 31 detected) 1-stage or 2-stage

Boilers on Stage 1-2 or 7, 8, 9

Table 6.1 Boiler configuration

Turn the left hand knob until Menu A4 is displayed.

If the automatic system configuration does not auto-

matically detect the connected heat sources and the number of stages in a cascade system, then set the parameters manually.

Adjustable Parameters

HK1 Direct circuit, disabled

HK1 detected by the

Cylinder cylinder charging circuit,

Table 6.2 Type of use

Turn the left hand knob until Menu A6 is displayed.

Disable all the circuits that are not in use.

Set the heating circuit type for the connected cir-

Remarks Setting range

automatic system configuration, setting can be changed

Direct circuit or mixer circuit/fixed value/ return boost/cylinder charging circuit/ disabled

disabled

cuits. Depending on this setting for each heating circuit, only the values and parameters that are of significance for the selected circuit type will be displayed in all the menus.

46 Installation Instructions VRC 630 0020095108_00

Vaillant VRC 630 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual