Vaillant VRC 430 Operating and Technisches Datenblatt

For the operator/for the heating engineer

Operating and Installation Manual

VRC 430

Weather compensator VRC 430

For the operator

Operating Manual

VRC 430

Weather compensator

Contents

Appliance features.....................................................4

Application ............................................................................4

Product features..................................................................4

1 Notes on the documentation.........................5

1.1 Storing of the documents.....................................5

1.2 Symbols used...........................................................5

1.3 Applicability of the manual...................................5

1.4 CE label......................................................................5

2 Safety...............................................................5

3 Notes on operation .........................................6

3.1 Intended use.............................................................6

3.2 Environmental conditions.....................................6

3.3 Care ............................................................................6

3.4 Vaillant warranty.....................................................6

3.5 Recycling and disposal ..........................................6

4 Operation .........................................................7

4.1 Overview operating and display front...............7

4.2 Overview of the display (display field) ..............8

4.3 Operating concept ..................................................8

4.3.1 Show various display screens..............................9

4.3.2 Changing parameters.............................................9

4.3.3 Operation in the simplified basic display..........11

4.4 The period of validity for new control

system target values.............................................12

4.5 Operator level, Expert technician level............13

4.6 Screens in the operating level for the

operator....................................................................13

4.7 Changing the displays (examples).................... 15

4.7.1 Entering time programmes (example for

heating circuit) ...................................................... 15

4.7.2 Programming holiday periods ........................... 16

4.7.3 Entering parameters for the heating

circuit ........................................................................17

4.7.4 Entering parameters for hot water

generation............................................................... 18

4.7.5 Renaming the heating components ................. 18

5 Status and error messages..........................19

Operating Manual VRC 430 0020042468_024

Appliance features

Application

The VRC 430 is a weather compensator controller for

heating and generating hot water.

"Weather compensator" means: at low external tem-

peratures the VRC 430 provides more heating output,

and at higher external temperatures lower heating

output. The outside temperature is measured by a

separate outdoor sensor, and the results are transmit-

ted to the VRC 430.

The room temperature is based only on your preset

values. The system compensates for the effect of the

external temperature.

You can use the VRC 430 to set different room target

temperatures - for different times of the day and for dif-

ferent days of the week.

In automatic mode, the VRC 430 controls your heating

according to these settings (see Fig. 0.1).

With the VRT 430 you can also control times for heating

and hot water generation.

04:00 16:0008:00 12:00 20:00

15 °

20 °

25 °

Room temperature

Time

Set back temperature

Period 1 Period 3Period 2

Fig. 0.1 Automatic heating operation: Example, setting the tar-

get room temperature for different times of day

The VRC 430 can also be used to control the following

accessory components:

– Circulation pump for hot water generation in conjunc-

tion with a multi-functional module 2 of 7

– Conventional domestic hot water cylinder

– Vaillant layer hot water storage tank actoSTOR

– Second heating circuit using the Vaillant Mixer

Module VR 61

– Solar unit using the Vaillant Solar Module VR 68

The VRC 430 can be operated with the Vaillant remote

control VR 81.

The VRC 430 can form part of a new heating and hot

water generation unit or can also be retro-fitted into an

existing installation. The heating unit must have an

eBUS interface.

eBUS is a communications standard for data exchange

between heating technology components.

Product features

– eBUS interface

– Data connection with a Vaillant heating unit via an

eBUS line

– Illuminated graphical display (display field)

– Operation via both dials according to the Vaillant

"turn and click" principle

– Direct fitting of the controller in the operating panel

of the heating unit or separate wall mounting

– Equipped for operation with Vaillant diagnostics soft-

ware vrDIALOG 810/2 and with the Vaillant Internet

Communication System vrnetDIALOG, i.e. Remote di-

agnosis and settings

Appliance features

5Operating Manual VRC 430 0020042468_02

1 Notes on the documentation

The following information is intended to help you work

through the documentation. Additional documents apply

in combination with this operating manual.

We accept no liability for any damage caused by failure

to observe these instructions.

Other applicable documents

– The installation instructions for the Vaillant controller

VRC 430 (Section 2 of this document For the expert

technician:

– The operating and installation manual for your heat-

ing system

– All instructions for accessory components

Glossary:

At the end of this document, in the appendix, you will

find an explanation of technical terms and important

functions listed in alphabetical order.

1.1 Storing of the documents

Please store this operating manual and all related docu-

ments in such a way that they are available whenever

required.

1.2 Symbols used

Please observe the safety instructions in this manual

when operating the unit.

eDanger!

Danger of death by electrocution!

dDanger!

Immediate risk of serious injury or death!

HCaution!

Danger of burning and scalding!

aCaution!

Potentially dangerous situation for the product

and environment!

hNote!

Useful information and instructions.

⇒Symbol indicating a required task

1.3 Applicability of the manual

This operating manual applies exclusively to units with

the following article number:

0020028520 VRC 430

The article number of your unit can be obtained from

your expert technician.

1.4 CE label

The CE mark documents the fact that the Vaillant con-

troller VRC 430 fulfils the fundamental requirements of

the relevant guidelines.

2 Safety

The VRC 430 may only be installed by a suitably quali-

fied expert technician. This engineer also assumes re-

sponsibility for properly installing and starting up the

unit.

HCaution!

Risk of being scalded by hot water!

At the draw-off locations for the hot water

there is a danger of scalding at temperatures in

excess of 60 °C. Young children and elderly

persons can be in danger even at lower temper-

atures.

Select the set target temperature to prevent

injury to all persons (see section 4.7.4).

Caution!

Risk of being scalded by hot water!

If your expert technician has activated the

anti-legionella function for your domestic hot

water cylinder, the hot water at certain draw-

off points may reach temperatures above

60 °C.

Contact your technician to find out if this func-

tion has been activated, and if so, for which

days and times.

Notes on the documentation 1

Safety 2

Operating Manual VRC 430 0020042468_026

3 Notes on operation

3.1 Intended use

The VRC 430 weather compensator is a state-of-the-art

appliance manufactured in accordance with recognised

safety regulations.

However, damage and property may occur if the unit is

used improperly or for a purpose other than the intend-

ed purpose.

The VRC 430 controller is designed as a weather com-

pensator timer-controlled heating unit with or without

hot water generation/circulation pump in conjunction

with a Vaillant boiler with eBUS interface.

Operation with the following accessories is permitted:

– Circulation pump for hot water generation in conjunc-

tion with a multi-functional module 2 of 7

– Conventional domestic hot water cylinder

– Vaillant layer hot water storage tank actoSTOR

– Second heating circuit using the Vaillant Mixer

Module VR 61

– Solar unit using the Vaillant Solar Module VR 68

– VR 81 remote control device

Any other or extended use is considered to be use other

than intended. The manufacturer or supplier is not liable

for any resulting damage. The owner alone bears any

risk.

Intended use also includes observing the operating and

installation instructions and all other applicable docu-

ments.

3.2 Environmental conditions

If the "thermostat" function is active and the VR 81 re-

mote control unit is not connected, please ensure:

– the unit is not blocked by furniture or other obstacles.

– the radiator valves in the room in which the VRC 430

is fitted are fully open.

"room temperature compensation" means that the

current room temperature is evaluated by the

VRC 430 and taken into account in the control sys-

tem.

Your expert technician will advise you whether the

"room temperature compensation" is activated.

3.3 Care

Clean the enclosure of the VRC 430 with a damp cloth.

Never use scouring or cleaning agents which could dam-

age the operating elements or the display.

3.4 Vaillant warranty

We only grant a Vaillant manufacturer's 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 dur-

ing the guarantee period must be made to Vaillant

Service Solutions (ane 0870 6060 777).

3.5 Recycling and disposal

Both your VRC 430 and its packaging are primarily

made of recyclable raw materials.

Appliance

Neither the VRC 430 nor any of its accessories may be

disposed of in the household waste. Make sure the old

appliance and any accessories are disposed of properly.

Packaging

Please leave the disposal of the transport packaging to

the qualified servicing company which installed the ap-

pliance.

7Operating Manual VRC 430 0020042468_02

4 Operation

hNote!

Ask your expert technician to explain how to

operate the VRC unit after it has been in-

stalled. This will prevent accidental changes

being made to the settings.

4.1 Overview operating and display front

Th. 12.01.06

11:46

3.0 °C Outside

Auto 19.0 °C

VRC 430

Fig. 4.1 Overview operating and display front

Key

1 Display (display field)

2 Controls, right-hand dial

3 Controls, left-hand dial

Fig. 4.1 shows the default display. The default display

shows the following information:

– the operating mode (automatic, manual or off) of the

heating circuit 1

– the current internal temperature

The default display is described in detail in Chapter

4.3.3.

The functions of the two dials are described in

Chapter 4.3.

Operation 4

Operating Manual VRC 430 0020042468_028

4.2 Overview of the display (display field)

The parameters (operating values) of the controller for

display and entry are shown on the various display

screens.

The display screens are sub-divided into:

– Default display (Fig. 4.1)

– Basic display (Fig. 4.2)

– Display/input screens for certain specific parameters

in the operator level (see Chapter 4.4 and 4.5)

– Display/input screens for operating and installation-

specific parameters at installer level

All display screens are split into three areas.

56.0 °C

Auto

> Select room temperature

21.0 °C

Th. 12.01.06

11:46

3.0 °C Outside

HC1

AutoDHW

Fig. 4.2 Overview displays (example basic display)

Key

1 Area for basic data, title of the screen or status and error mes-

sages

2 Area for displaying and entering parameters

3 Area for displaying explanations

The basic data is:

– Day

– Date

– Time

– External temperature

In the display/input screens for specific parameters, the

title of the screen appears instead of the basic data.

> Select room temperature

Th. 12.01.06

11:46

3.0 °C Outside

HC1

DHW 56.0 °C

21.0 °C

Auto

Auto

1234

Fig. 4.3 Area for displaying and entering parameters (example

basic display)

Key

1 Parameter name (display only)

2 Cursor



marks the jump to a modifiable value

3 Input field for parameter values; here: set target temperature

4 Input field for parameter values; here: Operating mode

4.3 Operating concept

The operating instructions for the simplified basic dis-

play are given in Chapter 4.3.3.

The operating concept described below applies to the

basic display (Fig 4.2) and the various display/input

screens in the operator level.

The two dials (Fig. 4.1 Items 2 and 3) function according

to the Vaillant "turn and click" principle.

When the dials are turned (forwards or backwards) you

can hear them click into position. When the dial clicks

into the adjacent position, the display also moves to the

corresponding adjacent position.

Click (press) to select or accept an adjustable parame-

ter.

Action Result

Left-hand

dial Turn Jump to the next display

screen

Right-hand

dial

Turn Jump to an input field

within a screen (marked

by the cursor



)

Changing a parameter (succession)

Click

(press) Activate for the entry

(highlighted display)

Turn Select the parameter

value

Click

(press) Save selected parameter

values

Table 4.1 Operating concept

4 Operation

9Operating Manual VRC 430 0020042468_02

4.3.1 Show various display screens

You can scroll through the individual screens of the dis-

play, like you do with a book, by turning the left-hand

dial.

Example:

You are now in the basic display. Instructions for ac-

cessing the basic display are given in Chapter 4.3.3

⇒ Turn the left-hand dial one position (click) clockwise.

The screen now shows display page 1 with the

options for making changes to the basic data.

56.0 °C

Auto

> Select room temperature

21.0 °C

Th. 12.01.06

11:46

3.0 °C Outside

HC1

AutoDHW

Day of week We

12 : 00

> Set day of week



21 . 06 . 06

Basic data 1

Date

Time

> Select day of week



21.5 °C

HC1 2

Time programme

06 : 00 - 10 : 40

: - :

Auto

Summer/winter time changeover

Fig. 4.4 Displaying various screens

4.3.2 Changing parameters

⇒Rotate the right-hand adjuster to jump to the indi-

vidual modifiable parameters within the display

screen.

The position is indicated by the



cursor (see Fig. 4.5).

If a parameter (e.g. a date with day, month, year) has

several elements, jump from one element to the next by

rotating the right-hand dial.

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

3.0 °C Outside

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

> Select operation mode



Th. 12.01.06

11:46

3.0 °C

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

> Select target hot water



Th. 12.01.06

11:46

3.0 °C

HC1

AutoDHW

21.0 °C

Outside

Fig. 4.5 Jump to the various modifiable parameters

Operation 4

Operating Manual VRC 430 0020042468_0210

⇒Press the right-hand dial.

The parameter value



marked by the cursor is highlight-

ed.

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

3.0 °C Outside

HC1

AutoDHW

21.0 °C

Fig. 4.6 Marking a modifiable parameter

⇒Rotate the right-hand dial to display in sequence the

optional values for this parameter

56.0 °C

Auto

> Select room temperature



Th. 12.01.06

11:46

3.0 °C Outside

HC1

AutoDHW

21.0 °C

56.0 °C

Auto

Th. 12.01.06

11:46

3.0 °C

HC1

AutoDHW

21.5 °C

56.0 °C

Auto

Th. 12.01.06

11:46

3.0 °C

HC1

AutoDHW

22.0 °C

Outside

> Select room temperature

Fig. 4.7 Changing a parameter value

⇒Press the right-hand dial.

The displayed value is confirmed and accepted for the

control system. The value display changes from high-

lighted to normal.

4 Operation

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