Operating instructions For the operator - Ryans Direct · PDF fileoperating instructions that are supplied with the other ... cing instructions for the Vaillant product and any other

For the operator

Operating instructions

VRT 350Room temperature-controlled controller

GB, IE

Operating instructions

Legal informationDocument type: Operating instructions

Product: VRT 350

Target group: Operator

Language: EN

Document number_version: 0020135485_00

Created on: 06.02.2012

Publisher/manufacturerVaillant GmbHBerghauser Str. 40 D-42859 RemscheidTelefon +49 21 91 18‑0 Telefax +49 21 91 18‑28 [email protected] www.vaillant.de

© Vaillant GmbH 2012These instructions, or extracts thereof, may only be printed with the written consent of Vaillant GmbH.All designations of products in these instructions are brand names/trade marks of the companies in ques-tion.We reserve the right to make technical changes.

Contents

0020135485_00 VRT 350 Operating instructions 3

Contents

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

1.1 Symbols and signs used .............................................. 5

1.1.1 Symbols........................................................................... 5

1.2 Structure of warnings.................................................. 5

1.3 Observe other applicable documents ...................... 5

1.4 Document storage ........................................................ 5

1.5 Applicability of the instructions ................................ 5

2 Safety.................................................................... 6

2.1 Action-related warnings.............................................. 6

2.2 Required personnel qualifications............................ 6

2.2.1 Operator.......................................................................... 6

2.3 General safety information ........................................ 6

2.3.1 Installation only by a skilled tradesman.................. 6

2.3.2 Risk of scalding as a result of hot drinkingwater................................................................................ 6

2.3.3 Danger caused by a malfunction .............................. 6

2.3.4 Frost damage caused by switching the unit off .... 6

2.3.5 Frost damage caused by excessively low roomtemperature .................................................................. 6

2.4 CE label............................................................................ 7

2.5 Intended use .................................................................. 7

3 Overview of the equipment................................. 8

3.1 Product features........................................................... 8

3.2 Type designation and serial number........................ 8

3.2.1 Type designation........................................................... 8

3.2.2 Identification plate ....................................................... 8

3.2.3 Serial number ................................................................ 8

3.3 Unit design...................................................................... 8

3.4 Control function ............................................................ 8

3.4.1 Heating installation ...................................................... 8

3.4.2 Hot water generation................................................... 9

3.4.3 ’VR 66’ Control Centre............................................... 9

3.5 Frost protection function............................................ 9

4 Operating ............................................................. 10

4.1 Operating structure .................................................... 10

4.1.1 Access level for the operator ................................... 10

4.1.2 Access level for the skilled tradesman................... 10

4.1.3 Menu structure design................................................ 10

4.1.4 Basic display.................................................................. 10

4.1.5 Selection level ............................................................... 11

4.1.6 Setting level ................................................................... 11

4.2 Operating concept........................................................ 11

4.2.1 Operation in the basic display .................................. 12

4.2.2 Operating example: Changing the date.................. 12

4.3 Overview of the menu structure.............................. 14

4.4 Overview of setting and read-out options............. 16

4.4.1 Using the overview in table format......................... 16

4.4.2 Entering your own settings ....................................... 16

4.4.3 Overview of operating modes .................................. 17

4.4.4 Overview of operating levels .................................... 17

5 Operating and display functions ....................... 19

5.1 Information.................................................................... 19

5.2 Settings .......................................................................... 19

5.2.1 Setting desired temperatures .................................. 19

5.2.2 Setting timer programs............................................ 20

5.2.3 Days away from home scheduling.......................... 22

5.2.4 Language selection .................................................... 22

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

5.2.6 Setting the time .......................................................... 22

5.2.7 Changing over to daylight saving time.................. 23

5.2.8 Setting the display contrast..................................... 23

5.2.9 Setting the offset room temperature.................... 23

5.2.10 Changing heating circuit naming............................ 23

5.2.11 Resetting to factory setting..................................... 23

5.2.12 Installer level................................................................ 23

5.3 Operating modes ........................................................ 23

5.3.1 Operating modes for the heating circuit .............. 24

5.3.2 Modes for hot water production ............................. 24

5.4 Special operating modes .......................................... 25

5.4.1 Cylinder boost.............................................................. 25

5.4.2 Party .............................................................................. 25

5.4.3 1 day away from home............................................... 25

Contents

4 Operating instructions VRT 350 0020135485_00

5.5 Messages ...................................................................... 25

5.5.1 Service message ......................................................... 25

5.5.2 Fault message.............................................................. 25

6 Saving energy..................................................... 27

6.1 Controlling the room temperature......................... 27

6.2 Reducing the room temperature ............................ 27

6.3 Uniform heating .......................................................... 27

6.4 Using thermostatic radiator valves andweather compensators or room thermostats ..... 27

6.5 Do not cover controllers ........................................... 27

6.6 Ensuring economic hot water generation ............ 27

7 Service and troubleshooting............................ 28

7.1 Cleaning the controller............................................. 28

7.2 Detecting and rectifying faults............................... 28

8 Decommissioning ............................................... 29

8.1 Replacing the controller............................................ 29

8.2 Recycling and disposal .............................................. 29

9 Warranty and customer service....................... 30

9.1 Warranty ...................................................................... 30

9.2 Customer service....................................................... 30

10 Technical data ..................................................... 31

10.1 Controller....................................................................... 31

11 Glossary .............................................................. 32

11.1 Selection level ............................................................. 32

11.2 Mode .............................................................................. 32

11.3 Setting level ................................................................. 32

11.4 Fault message.............................................................. 32

11.5 Heating circuit ............................................................. 32

11.6 Heating installation .................................................... 32

11.7 Night temperature...................................................... 32

11.8 Room temperature..................................................... 32

11.9 Day temperature......................................................... 32

11.10 Level of protection ..................................................... 32

11.11 Protection class........................................................... 32

11.12 Status message........................................................... 32

11.13 Thermostatic radiator valve .................................... 32

11.14 Flow temperature ....................................................... 32

11.15 Hot water generation................................................. 32

11.16 Time periods ................................................................ 33

11.17 Timer program ............................................................ 33

11.18 Access level for the operator .................................. 33

11.19 Access level for the competent person................. 33

Index....................................................................................34

Notes on the documentation 1


1 Notes on the documentation

1.1 Symbols and signs used

1.1.1 Symbols

The following symbols may appear:

Warning symbol (→ Page 6)

Information symbol

� Symbol for a required action.

Symbol for the result of an action.

Symbol for the completion of records and check-lists

Symbol for a required qualification

Symbol for a required tool

Symbol for the specification of a technical value

1.2 Structure of warnings

Warning signs are identified by an upper and lower separ-ating line and are laid out according to the following basicprinciple:

Danger!Type and source of danger

Explanation of the type of danger.

▶ Measures for averting the danger.

1.3 Observe other applicable documents

▶ When operating the controller, always take note of alloperating instructions that are supplied with the othercomponents of the heating system.

1.4 Document storage

Keep these operating instructions and all other applicabledocuments safe so that

– they are available whenever required,– they are kept for the full service life of the unit,– they are available to all subsequent operators.

1.5 Applicability of the instructions

These operating instructions apply to appliances with thefollowing article numbers only:

Article number

Great Britain 0020124475

Table 1.1: Article number

2 Safety


2 Safety

2.1 Action-related warnings

Classification of action-related warningsThe action-related warnings are classified in accordancewith the severity of the possible danger using the followingwarning symbols and signal words:

Warning symbols and signal wordsDanger!

Imminent danger to life or risk of severe per-sonal injury

Danger!

Risk of death from electric shock

Warning!

Risk of minor personal injury

Caution!

Risk of material or environmental damage

2.2 Required personnel qualifications

These instructions are aimed at those who are able to oper-ate a heating installation but do not have any special tech-nical knowledge or experience.

2.2.1 Operator

Definition:

Instructedoperator

The operator is charged with operation andmaintenance of the unit. He/she must ensurecompliance with maintenance intervals. He/shedoes not require any special technical know-ledge or experience.

The operator must have been instructed inthe following topics by the authorised skilledtradesman.

– General safety information

– Function and location of safety devices onthe system

– Operation of the unit

– Energy-saving operation

– Maintenance operations

2.3 General safety information

2.3.1 Installation only by a skilled tradesman

Installation of the unit can be only carried out by an ap-proved, skilled tradesman. This skilled tradesman is alsoresponsible for proper installation and start-up.

2.3.2 Risk of scalding as a result of hot drinkingwater

There is a risk of scalding at the hot water draw-off pointsif the set target temperature is greater than 60 °C. Youngchildren and elderly persons are particularly at risk, even atlower temperatures.

▶ Select a moderate target temperature.

2.3.3 Danger caused by a malfunction

▶ Ensure that air can circulate freely around the controller,and that the controller is not covered by furniture, cur-tains or other objects.

▶ Ensure that all radiator valves in the room where thecontroller is fitted are fully open.

▶ Only operate the heating installation when it is in a tech-nically perfect condition.

▶ Ensure that any faults and damage that may negativelyaffect safety are rectified immediately.

2.3.4 Frost damage caused by switching the unitoff

If you switch off the heating installation, parts of the heat-ing installation may be damaged by frost.

▶ Do not disconnect the heater from the power mains.▶ Leave the heating installation main switch in the "1" posi-

tion.

2.3.5 Frost damage caused by excessively lowroom temperature

If the room temperature is set too low in individual rooms,sections of the heating installation might be damaged byfrost.

▶ If you are absent during a frosty spell, ensure that theheating installation remains in operation and the roomsare warmed adequately.

▶ Please note the frost protection function.

Safety 2


2.4 CE label

The CE label documents that the controller com-plies with the fundamental requirements of the relevantdirectives.

2.5 Intended use

State-of-the-artThe controller is a state-of-the-art unit manufactured inaccordance with recognised safety regulations.

Even so, in the event of inappropriate or non-intended use,impairment of the unit and other property may arise.

The controller controls a heating installation with a Vaillantheater with eBUS interface in a way that is room-controlledand time-dependent.

The controller can control the hot water generation of aconnected domestic hot water cylinder.

Improper useAny other use, or use beyond that specified, shall beconsidered improper use. Any direct commercial orindustrial use is also deemed to be improper. The manufac-turer/supplier is not liable for any resulting damage. Theuser alone bears the risk.

Improper use of any kind is prohibited.

Other applicable documentsIntended use includes:

– observing the included operating, installation and servi-cing instructions for the Vaillant product and any otherparts and components of the system

– compliance with all inspection and servicing conditionslisted in the instructions.

3 Overview of the equipment


3 Overview of the equipment

3.1 Product features

– Room-temperature-controlled– Controls heater and hot water– Plain text display– Illuminated display

3.2 Type designation and serial number

3.2.1 Type designation

Abbreviation Explanation

’VRT’ Vaillant controller

3xx Room temperature controlled

Table 3.1: Type designation

3.2.2 Identification plate

The identification plate is located inside the controller andis not accessible from the outside.

3.2.3 Serial number

The 10-digit article number can be found in the serial num-ber. You can view the serial number under "Menu → Inform-ation → Serial number". The article number is found in thesecond line of the serial number.

3.3 Unit design

1

2

4

3

5

Image 3.1: Controller (front view)

1 Display

2 Diagnosis socket

3 Right selector button

4 Control knob

5 Left selector button

3.4 Control function

The controller controls the Vaillant heating system andhot water generation of a connected domestic hot watercylinder.

3.4.1 Heating installation

The controller is a room-temperature-controlled controllerand must be installed in the living room.

You can use the controller to set the desired temperaturefor different times of the day and for different days of theweek.

The temperature sensor measures the room temperatureand sends the values to the controller. At lower room tem-peratures, the controller switches the heater on. Once theroom temperature reaches the desired set temperature,the controller switches the heater off. The controller there-fore reacts to the fluctuations of the room temperature andconstantly controls the room temperature to the temperat-ure that you have set.

Overview of the equipment 3


3.4.2 Hot water generation

You can use the controller to set the temperature and timefor the hot water generation. The heater heats the water inthe domestic hot water cylinder until it reaches the set tem-perature. You can set a time period during which hot watershould be available in the domestic hot water cylinder.

3.4.3 ’VR 66’ Control Centre

If a ’VR 66’ Control Centre is connected, you can controltwo independent heating circuits with just one ’VRT 350’controller; e.g. one heating circuit is in the single-occupancyhouse and the second heating circuit is in a guest apart-ment in this building. In this case, one controller is alwaysthe main controller (Zone 1) and the other controller is theauxiliary controller (Zone 2). For Zone 1, which is controlledvia the main controller, all of the functions are available toyou. For Zone 2, you can use the auxiliary controller to setthe desired temperature for different times of the day anddifferent days of the week.

3.5 Frost protection function

The frost protection function protects the heating systemand apartment from frost damage.

The frost protection function monitors the room temperat-ure. If the room temperature

– falls below 5 °C, the controller switches the heater onand controls the system to a target room temperature of5 °C.

– exceeds 5 °C, the heater is switched off but the roomtemperature monitoring remains active.

4 Operating


4 Operating

4.1 Operating structure

The controller has two superordinate operating levels.

4.1.1 Access level for the operator

Through the access level for the operator, you access im-portant information and set-up options which do not re-quire any special prior knowledge. Via a menu structure,you can access configurable or read-only values.

4.1.2 Access level for the skilled tradesman

The skilled tradesman will set further values for the heatinginstallation via the access level for the skilled tradesman.The settings may only be made by someone with specialistknowledge; this level is therefore code-protected.

4.1.3 Menu structure design

The menu structure of the controller is split into threelevels. There are two selection levels and one setting level.From the basic display, you can access selection level 1 and,from there, you can access the menu structure for one levelup or down. The setting level is accessed from the lowestselection level.

4.1.4 Basic display

Auto 01.07.11°C19,5

15:34

Desired temperature 20,0°C

Menu Mode

1

2

3

4

8

7

5

6

Image 4.1: Basic display

1 Date

2 Current room temperat-ure

3 Time

4 Current function of theright-hand selector button(soft key function)

5 Current function of theleft-hand selector button(soft key function)

6 Desired temperature

7 Symbol for heating modein «Auto» mode

8 Mode set for the heatingmode

The basic display is the permanently visible display on thescreen. The basic display shows the current settings and

values of the heating installation. If you make a setting onthe controller, the display on the screen switches from thebasic display to the display for the new setting.

The basic display appears when you:

– press the left-hand selection button and thus exit selec-tion level 1.

– do not operate the controller for more than 5 minutes.

4.1.4.1 Symbols for the heating mode in the«Auto» operating mode

Symbol Meaning

Heating mode within a set time period (comfortmode)

Heating mode outside a set time period (set-backmode)

Table 4.1: Symbols for heating mode

4.1.4.2 Soft key function

Both selector buttons have a soft key function. The currentfunctions of the selector buttons are displayed in the bot-tom display line. Depending on the selection level selectedin the menu structure, the list entry or the value,

– the current function of the left-hand selection buttonmay differ.

– the current function of the right-hand selector buttonmay differ.

If, for example, you press the left function key, the currentfunction of the left function key switches from «Menu» to«Back».

4.1.4.3 Menu

If you press the left-hand selector button, «Menu», youswitch from the basic display to selection level 1 of themenu structure.

4.1.4.4 Mode

If you press the right-hand selector button, «Operatingmode», you access the settings under «Operating mode»directly from the basic display. This is a quick way to modifythe of «HEATING 1».

Operating 4


4.1.4.5 Desired temperature

Depending on the operating mode, the desired temperaturemay be greyed out on the basic display. This is the case, forexample, in «Summer mode». As heating is not operationalin «Summer mode», and therefore the heating circuit is off,there is no desired temperature.

4.1.5 Selection level

MenuInformationDesired temperaturesTime programmes

Back Select

1

4

3

2

Image 4.2: Display fields in the selection levels

1 Scroll bar (only appears ifthere are more list entriesthan can be shown atonce on the display)

2 Current functions ofthe right and left-handselector buttons (soft keyfunctions)

3 Selection level list entries

4 Current function or selec-tion level

Through the selection levels, you navigate to the settinglevel in which you wish to read or change settings.

4.1.6 Setting level

HEATING 1DayNight set-back

Back Change

20,0°C15,0°C

1

3

25

4

Image 4.3: Display fields in the setting level

1 Current selection level

2 Values

3 Highlighting (white fonton black background)shows the current selec-tion.

4 Current functions ofthe right and left-handselector buttons (soft keyfunctions)

5 Setting level

In the setting level, you can select the values you wish toread or change.

4.2 Operating concept

The controller is operated using two selector buttons and arotary knob (→ Page 8).

You can use the selector buttons to

– navigate through the selection levels and the settinglevel in the menu structure,

– select a setting,– confirm a value,– activate an operating mode,– cancel a change to a value.

You can use the rotary knob to

– navigate through the list entries of a selection level byturning the rotary knob to the left or right

– highlight a selection level or a setting level,– change a selected value.

The display shows a highlighted selection level, a settinglevel or a highlighted value with white font on a black back-ground. A flashing highlighted value means that you canchange the value.

Note

If you do not operate the controller duringa period of more than 5 minutes, the basicdisplay appears in the display again.

4 Operating


4.2.1 Operation in the basic display

From the basic display, you can change the «Desired daytemperature» directly for the current day by turning therotary knob.

Desired day temperatureOnly today: 18°C

For Permanent ChangePress OK

OK4.4: Requesting a permanent change of the desired temperature

In the display, a request appears asking if you wish tochange the «Desired day temperature» for the current dayor on a permanent basis.

4.2.1.1 To change the «Desired day temperature»for the current day only

▶ Turn the rotary knob to set the desired temperature.

◁ The display switches back to the basic display after12 seconds. The set desired temperature applies onlyuntil the end of the active time period of the currentday.

4.2.1.2 To change the «Desired day temperature»permanently

1. Turn the rotary knob to set the desired temperature.2. Press the right-hand selector button, «OK».

◁ The display switches to the basic display. The newdesired day temperature is applied permanently.

4.2.2 Operating example: Changing the date

Auto 01.07.11°C19,5

15:34


Menu ModeImage 4.5: Basic display

1. If the display does not show the basic display, press theleft-hand selector button, «Back», until the basic displayappears again.

2. Press the left-hand selector button, «Menu».

◁ The controller is now in selection level 1. The left-hand selector button now has the function «Back»(to the next selection level up), the right-hand se-lector button has the function «Select» (the next se-lection level down).


Back SelectImage 4.6: Selection level 1: «Information»

3. Turn the rotary knob until the «Basic settings» listentry is highlighted.

Menu

Time programmes

Time programmes

Days away schedulingBasic settings

Back SelectImage 4.7: Selection level 1: «Basic settings»

4. Press the right-hand selector button, «Select».

◁ The controller is now in selection level 2.

Basic settingsLanguageDate / TimeDisplay

Back SelectImage 4.8: Selection level 2: «Language»

5. Turn the rotary knob until the «Date/Time» list entry ishighlighted.

Operating 4


Basic settings

LanguageLanguageDate / TimeDate / TimeDisplay

Back SelectImage 4.9: Selection level 2: «Date/Time»

6. Press the right-hand selector button, «Select».

◁ The controller is now in the «Date» setting level. Thevalue for the day is highlighted. The left-hand se-lector button now has the function «Back» (to thenext selection level up), the right-hand selector but-ton has the function «Change» (the value).

Date / Time

TimeDate

Daylight saving:1508

13.03.11

Off

Back ChangeImage 4.10: Setting level: Value for day is highlighted

7. Press the right-hand selector button, «Change».

◁ The highlighted value starts to flash; you can nowchange the value by turning the rotary knob.

◁ The left-hand selector button now has the function«Cancel» (the change), the right-hand selector but-ton has the function «OK» (to confirm the change).

Date / Time

TimeDate


13.03.11

Off

Cancel OKImage 4.11: Setting level: Accept the changed value

8. Turn the control knob to change the value.

Date / Time

TimeDate


14.03.11

Off

Cancel OKImage 4.12: Setting level: Change has been saved

9. Press the right-hand selector button, «OK», to confirmthe change.

◁ The controller has stored the modified date.

Date / Time

TimeDate


14.03.11

Off

Back ChangeImage 4.13: Setting level: One level back

10. If the highlighted value that is flashing is correct, pressthe right-hand selector button «ok» again.

◁ The left-hand selector button now has the function«Back».

11. Press the left-hand selector button, «Back» severaltimes to switch back to the next selection level up andto access the basic display from selection level 1.

4 Operating


4.3 Overview of the menu structure

Second heating circuitIf a second heating circuit is available, you can also use the main controller for Zone 1 to access the functions shown ingrey. The display of the auxiliary controller for Zone 2 does not show the functions that are shown here in grey.


Back Select

Auto 01.07.11°C19,5

15:34


Menu Mode


Back Select

Desired temperaturesHEATING 1HEATING 1Domestic hot waterDomestic hot water

Back Select

HEATING 1DayNight set-back

Back Change

InformationSystem statusContact detailsContact detailsSerial number

Back Select

SystemStatusWater pressureDom. hot water

OK2,3bar

20,0°C

43°C

15,0°C

Charging

Back

InformationSystem statusContact detailsContact detailsSerial numberSerial number

Back Select

InformationSystem statusContact detailsSerial number

Back Select

Desired temperaturesHEATING 1HEATING 1Domestic hot waterDomestic hot water

Back Select

Domestic hot waterDom. hot waterDom. hot water

Cancel OK

HEATING 1HEATING 1 ----------------------------------Day temperatureNight temp

20,0°C15,0°C

Back

HEATING 1Auto day temp to 22:10away fromaway fromaway to

24.12.1124.12.1126.12.11

Back


Back Select

MondayPeriod 1:Period 2:Period 3:

06 : 00 - 22 : 00_ _ : _ _ - _ _ : _ __ _ : _ _ - _ _ : _ _

Back Select

MondayPeriod 1:Period 2:Period 3:

05 : 30 - 22 : 00_ _ : _ _ - _ _ : _ __ _ : _ _ - _ _ : _ _

Back Select

Time programmesHEATING 1HEATING 1Domestic hot waterDomestic hot water

Back Select

Time programmesHEATING 1HEATING 1Domestic hot waterDomestic hot water

Back Select

Contact detailsInstallerInstallerPhonePhone

Back

Serial number

12345678901234567890123456

Back

VRT350

4.14: Menu structure part 1

Operating 4


DisplayDisplay contrast 11

Back Change

OffsetOffset room temp 0,0K0,0K

Back Change

Factory reset?

Everything

Back Select

Language

English

Back OK

Date / Time

TimeDate

Daylight saving15: 3415: 34

29. 07. 1129

Off

Back Change

MenuDays away schedulingBasic settings

Back Select

Days away schedulingStartEndTemperature

Back Change

10.09. 1115,0°C

01.09. 1101

MenuDays away schedulingDays away schedulingBasic settings

Back Select

Basic settingsLanguageDate / TimeDate / TimeDisplay

Back Select


Back Select


Back Select

Basic settings

OffsetChange heating circuit name

Back Select

Basic settings

Offset

Factory reset

Back Select

Time programmeNoNo

MenuBasic settingsInstaller level-------------------------------------------------

Back Select

Enter code

000

Back OK

Change namesHeating 1 HEATING 1HEATING 1

Back Change

Basic settings

Change heating circuit nameFactory reset

Back Select

Factory reset

Offset

Change heating circuit name

Installer level

Installer level

4.15: Menu structure part 2

4 Operating


4.4 Overview of setting and read-out options

4.4.1 Using the overview in table format

You will find below an overview of the setting and read-outoptions.

– If the "Increment/Select" column is blank, these are val-ues that you can read but not adjust.

– If a value cannot be set at the factory, for example be-cause it is currently being measured, the "Factory reset"column will be blank.

– If nothing is entered in the "Selection level 2" column,you will be taken from "Selection level 1" directly to the"Setting level".

4.4.2 Entering your own settings

▶ In the last column, "Own setting", enter the values thathave been set by you.

Operating 4


4.4.3 Overview of operating modes

The activated operating mode is shown in the top left of the basic display.

The right-hand selector button can be used to navigate from the basic display directly to the settings under «Operatingmode».

If you have activated an advanced function, the display indicates the advanced function.

’VR 66’ Control CentreIf there is a second heating circuit, you can only set the operating modes using the main controller. The operating modethat is set applies for Zone 1 and for Zone 2.

Mode Setting Factory reset Own setting

Current mode

Auto Automatic mode Active

Summer Summer mode Not active

Day Comfort mode Not active

Set-back Set-back mode Not active

System OFF System OFF Not active

Special operating mode

Cylinder boost Active, Not active Not active

Party function Active, Not active Not active

1 day away from home Active, Not active Not active

Table 4.2: Operating modes

4.4.4 Overview of operating levels

Selectionlevel 1

Selectionlevel 2

Setting level Values Unit Incre-ment/Select

Factory reset Ownsettingmin. max.

Information Systemstatus

System

Status Current value

Water pressure Current value bar

Hot water Current value Charged, char-ging

HEATING 1

Day temperature Current value °C 0.5 20

5 30

Set-back tem-perature

Current value °C 0.5 15

5 30

Auto day tempuntil

Current value hr:min

away from Current value dd.mm.yy

away to Current value dd.mm.yy

Contactdetails

Installer Phone Current values

Serial num-ber

Unit number Permanent value

If the ’VR 66’ is connected, the functions shown in italics are only available for Zone 1 and these are only shown in the display for themain controller.

4 Operating


Selectionlevel 1

Selectionlevel 2

Setting level Values Unit Incre-ment/Select

Factory reset Ownsettingmin. max.

Desired tem-peratures

HEATING 1 Day

Set-back

5 30 °C 0.5 20

15

Hot watercircuit

Hot water 35 70 °C 1 60

Timer pro-grams

HEATING1

Individual daysand blocks

Mon, Tue, Wed,Thu, Fri, Sat, Sunand Mon - Fri, Sat- Sun, Mon - Sun

Mon - Fri:06:00-22:00

Sat: 07:30-23:30

Sun: 07:30-22:00

Time period 1:Start - End



00:00 24:00 hr:min 10 min

Hot watercircuit

Individual daysand blocks

Mon, Tue, Wed,Thu, Fri, Sat, Sunand Mon - Fri,Sat - Sun, Mon -Sun

Mon to Fri:05:30-22:00

Sat: 07:00-23:30

Sun: 07:00-22:00Time period 1:

Start - End



00:00 24:00 hr:min 10 min

Days awayfrom homescheduling

Start 01.01.00 31.12.99 dd.mm.yy Day.Month.Year 01.01.10

End 01.01.00 31.12.99 dd.mm.yy Day.Month.Year 01.01.10

Temperature Frostprotectionor 5

30 °C 0.5 Frost protection

Basic settings Language Selectable lan-guage

English

Date/Time Date 01.01.00 31.12.99 dd.mm.yy Day.Month.Year 01.01.10

Time 00:00 24:00 hr:min 10 min 00:00

Daylight savingtime

Off, Auto Off

Display Display contrast 01 15 1 8

Offset Room temperat-ure

-3.0 3.0 K 0.5 0.0

Settingheating cir-cuit names

HEATING 1 1 10 Let-ter/number

A to Z, 0 to 9,space

HEATING 1

Defaultsetting(reset)

Timer programs Yes, no No

Everything Yes, no No

Installer level Enter code 000 999 1 000

If the ’VR 66’ is connected, the functions shown in italics are only available for Zone 1 and these are only shown in the display for themain controller.

Table 4.3: Overview of operating levels

Operating and display functions 5


5 Operating and display functions

The controller offers various functions, operating modesand advanced functions for controlling the heating installa-tion.

– With the functions, you can read information, and setdesired temperatures, periods and basic settings.

– With the operating modes, you select whether theheating installation should be operated in automatic ormanual mode.

– With the advanced functions, you can change the activeoperating mode for the heating circuit and hot watergeneration in special situations quickly and with timerestrictions.

5.1 Information

You can set the functions using the left-hand selector but-ton: «Menu».

Select the «Information» list entry in selection level 1 toreach selection level 2 with the «System status», «Contactdetails» and «Serial number» list entries.

The path details given at the start of each function descrip-tion indicate how you reach this function in the menu struc-ture.

The table "Overview of operating levels" and the overviewof the menu tree show you which functions are available forZone 2 via the auxiliary controller.

5.2 Settings

5.2.1 Setting desired temperatures

This function is used to set the desired temperatures for«HEATING 1» and hot water generation.

5.2.1.1 Heating circuit

Caution!Risk of damage due to frost.

If rooms are not adequately heated, thismay cause damage to the building and tothe heating installation.

▶ If you are absent during a frosty spell,ensure that the heating installation re-mains in operation and provides ad-equate frost protection.

«Menu» → «Desired temperatures» → «HEATING 1»

– You can set two different desired temperatures for theheating circuit.

– The desired «day temperature» is the temperature youwish to have in the rooms during the day or when youare at home (Comfort mode).

– The desired «night temperature» is the temperature thatyou wish to have in the rooms during the night or whenyou are away from home (Set-back mode).

5.2.1.2 Hot water generation

Danger!Risk of being scalded by hot water.

There is a danger of scalding at the hotwater draw-off points if the temperaturesare greater than 60 °C. Young childrenand elderly persons are particularly at risk,even at lower temperatures.

▶ Select the temperature so that nobody isat risk.

«Menu» → «Desired temperatures» → «Domestic hot wa-ter»

– You can only use the controller's functions and settingoptions for hot water generation if a domestic hot watercylinder is connected to the heating installation.

You can set the desired «Hot water circuit» temperaturefor the hot water circuit.



5.2.2 Setting timer programs

5.2.2.1 Showing time periods for one day

06:00 18:0008:00 16:30 22:30

16 °

21 °Tem

pe

ratu

re

Time

Desirednighttemperature

Pe

rio

d 1

Desireddaytemperature

20:00


Pe

rio

d 2

Pe

rio

d 3


Desired night temperature

DesirednighttemperatureD

esir

ed

n

igh

tte

mp

era

ture

Image 5.1: Example: Three time periods in one day

The «Time programmes» function can be used to set the time period for the heating circuit and hot water generation.

If you have not set any time periods, the controller uses the time periods set in the factory settings.



5.2.2.2 Setting time periods for days and blocks

You can set individual days or blocks of days for which thetime periods should apply:

– Monday, Tuesday, Wednesday, Thursday, Friday, Sat-urday, Sunday

– Monday - Friday, Saturday - Sunday, Monday - Sunday

For each day and block, you can set up to three time peri-ods.

Note

The time periods set for a day have priorityover the time periods set for a block.

Example: Time periods for individual daysDesired temperature «Day»: 21 °C

Desired temperature «Night»: 16 °C

Time period 1: 06.00 - 08.00

Time period 2: 16.30 - 18.00

Time period 3: 20.00 - 22.30

Within the time periods, the controller brings the room tem-perature to the set desired «Day» temperature (Comfortmode).

Outside the time period, the controller brings the roomtemperature to the set desired «Set-back» temperature(Set-back mode).

Example: Time periods separate for each dayMonday

Time period 1: 06.00 - 07.30

Saturday

Time period 1: 07.30 - 10.00

Time period 2: 12.00 - 23.30

Example: Time periods for blocksMonday - Friday

Period 1: 06:30 - 08:00

Period 2: 12:00 - 13:00

Period 3: 17:00 - 22:00

Saturday - Sunday

Period 1: 08:00 - 22:00

5.2.2.3 Setting time programmes quickly

If, for example, you require a different time period for justone working day in the week, first set the times for the en-tire block «Monday - Friday»". Then set the deviating timeperiod for the working day.

5.2.2.4 Display and change deviating times in theblock

Monday - SundayPeriod 1:Period 2:Period 3:

!! : !! - !! : !!!! : !! - !! : !!!! : !! - !! : !!

Back SelectImage 5.2: Identification of different days

If you view a block in the display and have defined a deviat-ing period for a day in this block, then the display indicatesthe deviating times in the block with «!!» .

Individual days vary from

Mo - Su block.

OKBackImage 5.3: Exception to the time programme message

If you press the right-hand selector button «Select», a mes-sage appears on the display which informs you about devi-ating periods. You do not need to align the times.

The set times for the block marked with «!!» can be viewedand changed if you press the right-hand selector button«OK» in the display.

5.2.2.5 For the heating circuit

«Menu» → «Timer programs» → «HEATING 1»

– The time programmes are only effective in the «Auto-matic mode» (→ Page 24). The desired temperature thatyou set in the «Desired temperatures» function appliesin each set time period. Within the time period, the con-troller switches to Comfort mode and the heating cir-cuit heats the connected rooms up to the desired «daytemperature». Outside this time period, the controllerswitches to the set-back mode and the heating circuitheats the connected rooms to the desired «set-backtemperature».



Set the time period for the heating circuit so that each timeperiod:

– starts approx. 30 minutes before the time at which therooms should reach the desired «day temperature».

– ends approx. 30 minutes before the time at which therooms should reach the desired «set-back temperature».

5.2.2.6 For hot water generation

«Menu» → «Timer programs» → «Hot water circuit»

– You can only use the controller's functions and settingoptions for hot water generation if a domestic hot watercylinder is connected to the heating installation.

The timer programs are only effective for hot water gener-ation in the «Automatic mode» and «Summer mode» oper-ating modes.

In each set time period, the desired «Hot water circuit»temperature that you set in the «Desired temperatures»function applies. If, during the time period, the cylindertemperature drops by 5 °C below the desired «Hot watercircuit» value, the domestic hot water cylinder is heatedback up to the desired «Hot water circuit» temperature(recharged). At the end of a time period, the controllerswitches the hot water generation off until the start of thenext time period.

Set the time periods for hot water generation so that eachtime period:

– Starts approx. 30 minutes before the time at which thewater in the domestic hot water cylinder should havereached the desired «Hot water circuit» temperature.

– Ends approx. 30 minutes before the time at which you nolonger need any hot water.

5.2.3 Days away from home scheduling

«Menu» → «Days away from home scheduling» → «HEAT-ING 1»

– With this function, you can set a period with a start andend date and a temperature for days during which youare away from home. Thus, you do not need to changetime periods for which you have set, for example, noreduction of the desired temperature over the courseof the day.

Frost protection is activated.

While the «Days away from home scheduling» function isactivated, it has priority over the set operating mode. Atthe end of the specified period, or if you cancel the func-tion, the heating system returns to the pre-set mode.

5.2.4 Language selection

Note

During installation, the skilled tradesman setsthe desired language. All functions are dis-played in the set language.

«Menu» → «Basic settings» → «Language»

– If the language of e.g. a service technician differs fromthe set language, you can change the language using thisfunction.

Caution!It may not be possible to operate thecontroller if the wrong language is se-lected.

If you select a language that you do notunderstand, you can no longer read thetext in the controller display and can nolonger operate the controller.

▶ Only select a language that you under-stand.

However, if the text in the display should appear in a lan-guage that you do not understand, you can set a differentlanguage.

5.2.4.1 Set a language that you understand

1. Press the left-hand selection button repeatedly until thebasic display appears.

2. Press the left-hand selection button again.3. Rotate the rotary knob clockwise until the dotted line

appears.4. Then rotate the control knob anticlockwise until the

second list entry above the dotted line is highlighted.5. Press the right-hand selection button twice.6. Turn the control knob (to the right or left) until you find

a language you understand.7. Press the right-hand selection button.

5.2.5 Setting the date

«Menu» → «Basic settings» → «Date/Time» → «Date»

– Select this function to set the current date. All controllerfunctions that contain a date relate to the set date.

5.2.6 Setting the time

«Menu» → «Basic settings» → «Date/Time» → «Time»

– Select this function to set the current time. All controllerfunctions that contain a time relate to the set time.



5.2.7 Changing over to daylight saving time

«Menu» → «Basic settings» → «Date/Time» → «Day-lightsavings»

– You can use this function to set whether the controllerautomatically changes over to daylight saving time, orwhether you want to do this manually.

– «Auto»: The controller automatically changes over todaylight saving time.

– «Off»: You have to change over to daylight saving timemanually.

Note

Daylight saving time means Central Europeansummer time: Start = last Sunday in March, End= last Sunday in October.

5.2.8 Setting the display contrast

«Menu» → «Basic settings» → «Display» → «Display con-trast»

– You can set the display contrast in relation to the bright-ness of the surroundings, to ensure that the display isclearly legible.

5.2.9 Setting the offset room temperature

«Menu» → «Basic settings» → «Offset» → «Room temperat-ure»

– A thermometer is integrated in the controller for meas-uring the room temperature. If you have another ther-mometer in the same room and compare the values witheach other, the temperature values may constantly dif-fer from each other.

Example

One room thermometer constantly shows a temperaturethat is one degree higher than the current room temperat-ure on the controller display. With the «Room temperature»function, you can offset the temperature difference in thecontroller display by setting a correction value of +1 K (1 Kcorresponds to 1 °C). K (Kelvin) is a unit for the temperaturedifference. Inputting a correction value affects the roomtemperature compensator.

5.2.10 Changing heating circuit naming

«Menu» → «Basic settings» → «Change heating circuit nam-ing»

– You can now modify the factory-specified heating circuitnames as you wish. The name is limited to 10 characters.

5.2.11 Resetting to factory setting

You can reset the settings for the «Time programmes» orfor «Everything» to the factory setting.

Timer programs«Menu» → «Basic settings» → «Factory reset» → «Time pro-grammes»

– With «Timer programs», you reset all the settings youhave made in the «Timer programs» function to the de-fault setting. All other settings that include times, suchas «Date/Time», are not affected.

While the controller is resetting the timer program set-tings to the default settings, «In process» is shown on thedisplay. The basic display is then displayed.

Everything

Caution!Risk of a malfunction.

The «Everything» function restores allsettings to the factory settings, includingthose set by the skilled tradesman. It maybe the case that it is no longer possible tooperate the heating installation after this.

▶ Arrange for the skilled tradesman toreset all settings to factory settings.

«Menu» → «Basic settings» → «Factory reset» →«Everything»

– While the controller is resetting the settings to the fact-ory settings, «in process» is shown on the display. Thenthe installation assistant appears in the display, whichonly the skilled tradesman may operate.

5.2.12 Installer level

The Installer level is reserved for the skilled tradesman andis therefore protected by an access code. At this operatinglevel, the skilled tradesman can make the necessary set-tings.

5.3 Operating modes

Use the right-hand selector button, «Operating mode» toset the mode directly.

The path details given at the start of each mode descriptionindicate how you reach this mode in the menu structure.



5.3.1 Operating modes for the heating circuit

5.3.1.1 Automatic mode

«Operating mode» → «Automatic mode»

– The automatic mode controls the heating circuit in ac-cordance with the set desired temperature and the settime periods.

Within the time periods, the controller brings the room tem-perature to the set desired «Day» temperature (Comfortmode).

Outside the time period, the controller brings the roomtemperature to the set desired «Set-back» temperature(Set-back mode).

5.3.1.2 Summer mode

«Operating mode» → «Summer mode »

– The heating function is switched off for the heating cir-cuit and the frost protection function is active.

The hot water generation controls the controller in accord-ance with the time period that has been set for this pur-pose.

5.3.1.3 Comfort mode

«Operating mode» → «Comfort mode »

– The «Comfort mode» operating mode brings the heatingcircuit to the set desired «day temperature», withouttaking account of a time period.

5.3.1.4 Set-back mode

«Operating mode» → «Set-back mode»

– The «Set-back mode» operating mode controls the heat-ing circuit to the set desired «Set-back» temperature,without taking time periods into consideration.

5.3.1.5 System OFF

«Operating mode» → «System OFF»

– The heating function is switched off. The frost protectionfunction is activated.

5.3.2 Modes for hot water production

The operating mode for hot water generation correspondsto the heating circuit operating mode that has been set.You cannot set a deviating operating mode.

5.3.2.1 Automatic mode

The automatic mode controls the hot water generationin accordance with the set desired temperature for «Hotwater circuit» and the set time periods. In the «Timer pro-grams» function, you have set time periods for hot watergeneration. If you have not set any time periods, the con-troller uses the time period set in the factory settings forhot water generation.

Within the time period, hot water generation is switched onand maintains the hot water in the DHW cylinder at the pre-set temperature. Outside the period, hot water generationis switched off.

5.3.2.2 Summer mode

The summer mode controls the hot water generation in ac-cordance with the set desired temperature for «Hot watercircuit» and the set time periods. In the «Timer programs»function, you have set time periods for hot water gener-ation. If you have not set any time periods, the controlleruses the time period set in the factory settings for hot wa-ter generation.

Within the time period, hot water generation is switched onand maintains the hot water in the DHW cylinder at the pre-set temperature. Outside the period, hot water generationis switched off.

5.3.2.3 Comfort mode

The comfort mode controls the hot water generation in ac-cordance with the set desired temperature for «Hot watercircuit» without taking time periods into account.

5.3.2.4 Set-back mode

Hot water generation is switched off and the frost protec-tion function is activated.

5.3.2.5 System off

Hot water generation is switched off and the Frost protec-tion function is active.



5.4 Special operating modes

The advanced functions can be activated directly fromany mode using the right-hand selector button «Operat-ing mode».

The path details given at the start of each advanced func-tion description indicate how you can access this advancedfunction in the menu structure.

5.4.1 Cylinder boost

«Operating mode» → «Cylinder boost»

– If you have switched off hot water generation or requirehot water outside a time period, activate the «Cylinderboost »advanced function. The advanced function heatsthe water in the domestic hot water cylinder once, un-til the set desired «Hot water circuit» temperature isreached or until you cancel the advanced function early.The heating system will then return to the pre-set mode.

5.4.2 Party

«Operating mode» → «Party function»

– If you want to switch on the heating circuit and hot wa-ter generation temporarily, e.g. during a party, activatethe advanced function «Party».

This means you do not need to change the settings on theheating system for short periods of time. The advancedfunction brings the room temperature to the set desired«Day» temperature, in accordance with the set time peri-ods.

If the display shows «Party function active», you can usethe rotary knob to set the desired «Day» temperature forthe heating circuit.

The advanced function is deactivated when the next timeperiod is reached or if you cancel the advanced functionearly. The heating system will then return to the pre-setmode.

5.4.3 1 day away from home

«Operating mode» → «1 Day away from home»

– If you are only away from home for one day, e.g. for aday trip, activate the «1 Day away from home» advancedfunction. This means you do not need to change the timeperiods that you have set by increasing the room tem-perature during the day, for example. This advancedfunction brings the room temperature to the desired«Set-back» temperature.

Hot water generation is switched off and frost protection isactivated.

If the display shows «1 Day away from home active», youcan use the rotary knob to set the desired «Set-back» tem-perature for the heating circuit.

The advanced function is automatically deactivated after24:00 hours or if you cancel the advanced function first.The heating system will then return to the pre-set mode.

5.5 Messages

5.5.1 Service message

If a service is required, the controller displays a servicemessage in the display.

Caution!Risk of damage to the heating installa-tion due to failure to perform mainten-ance work.

A service message indicates that the heat-ing installation must be serviced by theskilled tradesman. Failure to observe theseservice messages could lead to materialdamage or failure of the heating installa-tion.

▶ If the controller displays a service mes-sage, inform a skilled tradesman.

Service Heat Generator 1


Menu Mode

°C22,5

Image 5.4: Example of a service message

The following service messages may appear:

– «Boiler service»– «Service» (of the heating installation)

5.5.2 Fault message

If a fault occurs in the heating system, the controller dis-plays a fault message in the display.



Caution!Risk of damage to the heating in-stallation due to failure to performtroubleshooting work.

A fault message indicates that the skilledtradesman must perform troubleshootingor repair work on the heating installation.Failure to observe these fault messagescould lead to material damage or failure ofthe heating installation.

▶ If the controller displays a fault mes-sage, inform a skilled tradesman.

Heat Generator 1 fault

Back

!

Image 5.5: Example of an fault message

If the controller shows a fault message in the display in-stead of the basic display and you press the left-hand se-lector button «Back» then the basic display appears again.

You can also read current fault messages under "Menu →Information → System status → Status". As soon as a faultmessage for the heating system appears, the «Status» set-ting level will display «Fault». In this case, the right functionkey has the function «Display».

Saving energy 6


6 Saving energy

6.1 Controlling the room temperature

It is normally not necessary to heat bedrooms or seldom-used rooms to 20°C.

▶ Adjust the room temperature according to the purposeof use of the room.

▶ Set the room temperature only as high as would beenough for your comfort level.

Note

An extra degree would mean increased energyconsumption of about 6%.

6.2 Reducing the room temperature

You can reduce the temperature most simply and reliablyby using controllers with individually selectable time pro-grammes.

If you reduce the room temperature by more than 5 °C, youdo not save any additional energy, because increased heat-ing capacities would then be required for the next full heat-ing period. Only for longer absences, e.g. during holidays, isit worthwhile to lower the temperatures further.

▶ Reduce the room temperature at night and in your ab-sence.

▶ During the set-back times, set the room temperature to alower temperature than during full heating times.

▶ During a longer absence, set the temperature using the«Days away from home scheduling» function.

6.3 Uniform heating

If you are only heating one room or individual rooms inyour dwelling, the unheated adjoining rooms are alsoheated in an unregulated manner through walls, doors,windows, roofs and floors. The capacity of the radiatorsin the heated rooms is obviously not enough for such anoperating mode. It is then not possible to heat up theheated rooms sufficiently (the same effect arises whendoors between heated and unheated/barely heated roomsare left open).

▶ Heat all rooms in your dwelling evenly and according totheir use.

6.4 Using thermostatic radiator valves andweather compensators or room thermo-stats

Thermostatic valves on all radiators maintain the roomtemperature exactly once they have been set. If the roomtemperature rises above the value set on the sensor head,the thermostatic radiator valve shuts off automatically;when the temperature drops below the defined value, itopens again.

Exception: The thermostatic valves on the radiators in theroom in which the controller is fitted must be turned fullyon. The radiators are then controlled by the controller andthus maintain the set room temperature.

▶ Adjust the room temperature to your individual require-ments using thermostatic radiator valves. You can usethermostatic radiator valves or a room thermostat toensure the economical operation of your heating install-ation.

6.5 Do not cover controllers

The controller must be able to detect the circulating airunhindered. Covered thermostatic radiator valves can beequipped with remote sensors and thus still work.

▶ Do not cover your controllers with furniture, curtains orsimilar objects.

6.6 Ensuring economic hot water generation

▶ Set the desired «Hot water circuit» temperature of yourdomestic hot water cylinder only to the temperature youactually need, and under no circumstances higher than60 °C.

▶ You should also use the «Timer programs» function forhot water generation in «Automatic mode» or «Summermode». Set the time period so that the water is broughtto the desired «Hot water circuit» temperature shortlybefore it is needed, e.g. in the morning after getting upand in the evening after you return home.

▶ If you do not need any hot water for a longer period oftime, switch hot water generation off.

▶ If you need hot water rarely or outside the set time peri-ods, use the function «Cylinder boost».

7 Service and troubleshooting


7 Service and troubleshooting

7.1 Cleaning the controller

1. Clean the casing of the controller with a damp cloth.2. Never use scouring or cleaning agents which could

damage the operator control elements or the display.

7.2 Detecting and rectifying faults

Fault Cause Remedy

Display is dark Unit fault – Switch off themains switchon the heaterfor approx. 1minute andthen switch iton again

– If the error isstill present,inform the com-petent person

No changes in thedisplay via therotary knob

No changes in thedisplay via theselector buttons

Table 7.1: Detecting and rectifying faults

Decommissioning 8


8 Decommissioning

8.1 Replacing the controller

If the controller of the heating system needs to be replaced,then the heating system must be shut down.

This work should be conducted by a skilled tradesman.

8.2 Recycling and disposal

The controller and the associated transport packaging con-sist largely of recyclable materials.

Unit

If your Vaillant unit is identified with this symbol, itdoes not belong with your household waste at the end of itsuseful life.

▶ In this case, make sure that the Vaillant unit and anyaccessories are properly disposed of at the end of theiruseful life.

As this Vaillant unit is covered by the law regarding themarketing, return and environmentally friendly disposal ofelectrical and electronic equipment (ElektroG in Germany),the unit can be disposed of free of charge at a municipalcollection point.

PackagingLeave the disposal of the transport packaging to the ap-proved qualified servicing company that installed the unit.

9 Warranty and customer service


9 Warranty and customer service

9.1 Warranty

GuaranteeWe only grant a Vaillant manufacturers warranty if a suit-ably qualified engineer has installed the system in accord-ance with Vaillant instructions. The system owner will begranted a warranty in accordance with the Vaillant termsand conditions. All requests for work during the guaranteeperiod must be made to Vaillant Service Solutions (08706060 777).

9.2 Customer service

Vaillant ServiceTo ensure regular servicing, it is strongly recommendedthat arrangements are made for a Maintenance Agreement.

Please contact Vaillant Service Solutions for further details:+44 80 70 606 07 77

Technical data 10


10 Technical data

10.1 Controller

Designation Value

Operating voltage Umax 24 V

Current consumption < 50 mA

Supply line cross-section 0.75 … 1.5 mm²

Level of protection IP 20

Protection class III

Maximum permissible ambienttemperature

50 ℃

Height 97 mm

Width 147 mm

Depth 50 mm

Table 10.1: Controller

11 Glossary


11 Glossary

11.1 Selection level

Using a selection level, you access the next level of themenu structure or settings that you can change.

11.2 Mode

With the operating modes, you determine how the heatinginstallation is controlled, e.g. in automatic mode or manu-ally.

11.3 Setting level

You can use the setting level to select and change values.

11.4 Fault message

A fault message shows you that the heating installation hasnotified the controller of a fault.

11.5 Heating circuit

A heating circuit is a closed circulation system of pipes andheat consumers (e.g. radiators). The heated water from theboiler flows into the heating circuit and returns to the boileras cooled water.

11.6 Heating installation

The heating installation heats up the dwelling and produceshot water. A heating installation usually has at least oneheating circuit.

11.7 Night temperature

The night temperature is the temperature to which the con-troller reduces the room temperature outside the set timeperiods (Night mode).

11.8 Room temperature

The room temperature is the temperature actually meas-ured in the dwelling.

11.9 Day temperature

The day temperature is the desired «day» temperature towhich you wish to heat the dwelling (Comfort mode).

11.10 Level of protection

The level of protection indicates the suitability of electricalequipment for various ambient conditions and additionallythe protection of people from potential hazards during theiruse.

11.11 Protection class

Protection class denotes the classification and identifica-tion of electrical equipment with reference to the existingsafety measures to prevent electric shocks.

11.12 Status message

A status message appears when you have activated an ad-vanced function. It is shown for as long as the advancedfunction is active.

11.13 Thermostatic radiator valve

Thermostatic radiator valves are mounted on radiators andcontrol the room temperature to the set value. If the roomtemperature rises above the pre-set value, the thermostaticradiator valve reduces the heating water flow rate. If theroom temperature falls below the pre-set value, the ther-mostatic radiator valve opens and the heating water flowrate increases and the room temperature rises again.

11.14 Flow temperature

The heater heats water which is pumped through the heat-ing installation. The flow temperature is the temperature ofthe water introduced to the heating installation after heat-ing.

11.15 Hot water generation

The boiler heats the water in the domestic hot water cylin-der to the selected «Hot water circuit» target temperature.If the temperature in the DHW cylinder falls by a specificamount, the water is heated up again to the target «Hotwater circuit» temperature.

Glossary 11


11.16 Time periods

A time period is a preset, defined time period in which theheater or the hot water generation are switched on.

11.17 Timer program

With timer programs, you can control your heating installa-tion in such a way that heating and hot water are already inthe set time periods with the set desired temperature.

11.18 Access level for the operator

This access level contains all the functions that the oper-ator is allowed to change.

11.19 Access level for the competent person

This access level contains all the additional functions thatcan be changed by the competent person; these must notbe changed without specialist knowledge. This access levelis reserved for the competent person and is therefore pro-tected by an access code.

Index


Index

A

Access levelCompetent person ................................................................. 33Operator............................................................................. 10, 33Skilled tradesman ................................................................... 10

Advanced functionsCylinder boost......................................................................... 25Party.......................................................................................... 25

ApplicabilityInstructions.................................................................................5

Automatic mode ........................................................................... 24

BBasic display ................................................................................... 10

BlockDeviating times........................................................................ 21

CCE label ..............................................................................................7

CleaningController ................................................................................. 28

Comfort mode ............................................................................... 24Control function.............................................................................. 8

ControllerCleaning.................................................................................... 28

D

DateChanging ................................................................................... 12Setting ...................................................................................... 22

Day temperature........................................................................... 32

Daylight saving timeChanging to ............................................................................. 23

Days away from homeScheduling ............................................................................... 22

«Desired day temperature»Changing ................................................................................... 12

Desired temperature ......................................................................11

Desired temperaturesHeating circuit ......................................................................... 19Hot water generation............................................................. 19set ............................................................................................... 19Setting ....................................................................................... 19

DisplayArticle number.......................................................................... 8Serial number............................................................................ 8Time programmes................................................................... 21Timer programs...................................................................... 22

Display contrastset .............................................................................................. 23

DocumentsOther applicable ........................................................................5

E

EverythingResetting to factory settings .............................................. 23

F

Factory resetResetting everything............................................................. 23

Factory settingResetting to............................................................................. 23

Fault message ........................................................................ 25, 32

FaultsDetecting.................................................................................. 28Rectifying................................................................................. 28

Flow temperature ......................................................................... 32

Frost damageSwitching off ..............................................................................6Temperature ..............................................................................6

Frost protection function ..............................................................9

GGuarantee....................................................................................... 30

H

Heating circuit ............................................................................. 32Desired temperatures............................................................ 19

Heating circuit namesenter.......................................................................................... 23

Heating installation........................................................................ 8

Hot water generation ........................................................... 9, 32Desired temperatures............................................................ 19

I

InformationReading...................................................................................... 19

Installationonly by a skilled tradesman....................................................6

Installer level ................................................................................. 23Intended use .....................................................................................7

L

LanguageSelecting................................................................................... 22set .............................................................................................. 22

Level of protection....................................................................... 32

Index


M

MalfunctionPreventing ..................................................................................6

Menu structureOverview ................................................................................... 14

Modes ............................................................................... 10, 23, 32Preparation.............................................................................. 24

NNight temperature........................................................................ 32

O

Offset room temperatureSetting ...................................................................................... 23

Operating and display functions......................................... 19–26Operating concept...........................................................................11Operating example........................................................................ 12Operating level ............................................................................... 10Operating levels ............................................................................. 10

Operating modesAutomatic mode..................................................................... 24Overview ....................................................................................17

Operating modes for hot water generationAutomatic mode..................................................................... 24Comfort mode......................................................................... 24Set-back mode........................................................................ 24Summer mode......................................................................... 24System off................................................................................ 24

Operating structure ...................................................................... 10

OverviewTable format............................................................................. 16

Own settings ................................................................................... 16

P

Product features............................................................................. 8Protection class ............................................................................ 32

R

ResettingTo factory setting .................................................................. 23

Room temperature..................................................................... 32Set offset ................................................................................. 23

SSaving energy................................................................................ 27

ScaldingDrinking water ...........................................................................6

SchedulingDays away from home .......................................................... 22

Selection level ...........................................................................11, 32Service............................................................................................. 30Service message........................................................................... 25

Set-back mode............................................................................... 24

SettingDate ........................................................................................... 22Offset room temperature .................................................... 23Time........................................................................................... 22Time periods for blocks ......................................................... 21Time periods for days and blocks ....................................... 21Time periods in a day............................................................. 21Time periods separate for each day................................... 21

Setting level ...............................................................................11, 32Soft key function ........................................................................... 10

Special operating modes .......................................................... 251 Day away from home.......................................................... 25

Standard timeChanging to ............................................................................. 23

Status messages........................................................................... 32Summer mode ............................................................................... 24

Symbolsheating circuit.......................................................................... 10

System OFF.................................................................................... 24

TThermostatic radiator valve ...................................................... 32

TimeSetting ...................................................................................... 22

Time periods .................................................................................. 33

Time periods for blocksSetting ....................................................................................... 21

Time periods for days and blocks.............................................. 21

Time periods in a daySetting ....................................................................................... 21

Time periods separate for each daySetting ....................................................................................... 21

Time programmesquick setting............................................................................. 21set .............................................................................................. 20

Timer program .............................................................................. 33

Timer programsResetting to default setting ................................................ 23

Type designationTable............................................................................................ 8

*2703129_rev0*

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