0020176440 00 EXPen 052013 - Aquagreen Solutions · 2019-03-11 · 6 Operating instructions for the...

Instructions for use and installation

EXPen

electronicVED exclusiv

Operating instructions

electronicVED exclusiveVED electric instantaneous water heater

For the operator

Instructions for use

Table of contents

2 Operating instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00

Table of contents

1 Notes on the documentation ..................................... 31.1 Storing documents .......................................................... 31.2 Applicability of the instructions ................................... 31.3 Identification plate ........................................................... 3

2 Safety .................................................................................42.1 Classification of action-related warnings...................42.2 Intended use ......................................................................42.3 General safety information ............................................42.4 CE label ...............................................................................5

3 Functions and operation ..............................................63.1 When using the remote control ....................................63.2 Setting the display parameters .................................... 7

4 Energy-saving tips ........................................................17

5 Detecting and rectifying faults ................................17

6 Care ....................................................................................17

7 Maintenance ................................................................... 18

8 Recycling and disposal ............................................... 18

Notes on the documentation

Operating instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00 3

1

1 Notes on the documentation

The following information is intended to help you through-out the entire documentation. Further documents apply in combination with these instructions for use.We accept no liability for any damage caused by failure to observe these instructions.

Observing other applicable documentsAll operating instructions which are enclosed with system components MUST be observed.

1.1 Storing documents

> Store these instructions and all other applicable docu-ments for further use.

1.2 Applicability of the instructions

These instructions apply for the following products only:

Type designation Article number

VED E 18/7 E HK 0010015731

VED E 21/7 E HK 0010015732

VED E 24/7 E HK 0010015733

VED E 27/7 E HK 0010015734

1.1 Identifying the unit

1.3 Identification plate

The unit's article number is part of the serial number. To find out the serial and article numbers refer to the identifi-cation plate. The identification plate can be found to the right, next to the operator control panel, under the cover.

1.1 Example of an identification plate

Explanation of the symbols on the identification plate

CE mark, see section 1.5

The VDE GS mark confirms that the unit complies with standards and has been tested for safety

Symbol confirming conformity with the electromagnetic compat-ibility standard

Ensure proper disposal at the end of its useful life (not household waste)

Read the operating and installa-tion manual

Serial number as a bar code and in plain text.The 7th to 16th digits of the serial number form the unit's article number


aSafety

a2

2 Safety

2.1 Classification of action-related warnings

The action-related warnings are classified in accordance with the severity of the possible danger using warning symbols and signal words:

Warning symbol

Signal word Explanation

aDanger!

Imminent danger to life or risk of severe personal injury

e Danger!Risk of death from electric shock

a Warning.Risk of minor personal injury

b Caution.Risk of material or environmen-tal damage

2.1 Meaning of warning symbols and signal words

2.2 Intended use

The Vaillant electronicVED exclusive electric instantaneous water heater has been constructed using state-of-the-art technology in accordance with the recognised safety rules and regulations. Nevertheless, there is still a risk of death or serious injury to the user or others or of damage to the unit and other property in the event of improper use or use for which the unit is not intended.This unit is not designed to be used by persons (including children) with limited physical, mental or sensory capabili-ties or by persons who do not have enough experience and/or knowledge, unless they are supervised by a person who is responsible for their safety or have been instructed by him/her about how to use the unit.Children must be supervised to ensure that they do not play with the unit. The Vaillant electronicVED exclusive electric instantaneous water heater must only be used to heat up drinking water. The Vaillant electronicVED exclusive electric instantaneous water heater is suitable for use only in an enclosed, frost-free room in a domestic environment. The Vaillant electron-icVED exclusive electric instantaneous water heater is not suitable for use in secondary circulation lines.

Using the Vaillant electronicVED exclusive electric instanta-neous water heater in vehicles is regarded as improper use. Units that are not classed as vehicles are those that are installed in a fixed and permanent location (known as "fixed installation"). Any other use, or use beyond that specified, shall be con-sidered improper use. Any direct commercial or industrial use is also deemed to be improper. The manufacturer/sup-plier is not liable for any damage resulting from such use. In this case, the user alone bears the risk.Intended use includes the following: – Observance of accompanying operating, installation and

servicing instructions for Vaillant products as well as for other parts and components of the system

– Installing and fitting the boiler in accordance with the boiler and system approval

– Compliance with all inspection and maintenance condi-tions listed in the instructions.

2.3 General safety information

Installation, start-up, maintenance and repairAll work involved in the installation, initial start-up, mainte-nance and repair of the electronicVED exclusive electric instantaneous water heater must only be carried out by an approved heating specialist company, who also assumes the responsibility for installing the unit properly and commis-sioning it for the first time. The electronicVED exclusive electric instantaneous water heater must be installed in strict compliance with these installation instructions.

Risk of death from electric shock from live lines and connections!During all work on the open unit, particularly on electrical lines and connections, there is a risk of death from electric shock.

> Do not carry out any work on the unit yourself. > Inform your heating specialist company if your

electronicVED exclusive is not working correctly.

Risk of death from electric shock from live lines and connections!The drinking water used must demonstrate resistance greater than or equal to 900 ohm at 15 °C. Otherwise, the unit must not be used.

> Before installing the unit, ask the competent person at your local water company to inform you about the water resistance and conductivity.

> Consult a competent person if you have any doubt as to the requirements for water quality.


aSafety

a2

Risk of being scalded by hot water.The outlet temperatures at the draw-off points can be up to 60 °C.

> When using an electronicVED exclusive electric instanta-neous water heater, be aware of the risk of scalding from high outlet temperatures.

> Set your electronicVED exclusive to a maximum of 43 °C if you want to be protected from scalding.

Material damage inside the unit caused by poor quality waterAn electronicVED exclusive electric instantaneous water heater must only be used to heat up drinking water. This drinking water must meet the specific German or Austrian drinking water ordinances. Otherwise, it is not possible to rule out the risk of corrosion inside the unit.

> Consult a competent person if you have any doubt as to the requirements for water quality.

Risk of frostIf an electronicVED exclusive electric instantaneous water heater is placed out of operation for a relatively long period of time in an unheated room in cold weather, the water in the unit and pipes may freeze.

> Consult a competent person if you have any doubt as to requirements.

> Ensure that your electronicVED exclusive electric instan-taneous water heater is installed in a permanently frost-free room.

Material damage to the appliance caused by changesNo changes must be made to your electronicVED exclusive.

In the event of a fault > If your electronicVED exclusive is not producing hot

water or if any other fault occurs, inform your approved heating specialist company.

> If the electronicVED exclusive ever malfunctions, inform your approved heating specialist company.

> Do not carry out any repairs yourself. > Do not open the unit cover under any circumstances.

2.4 CE label

CE labelling shows that the electronicVED exclusive electric instantaneous water heaters comply with the basic require-ments of the following directives and correspond to the tested type sample: – Electromagnetic compatibility directive

(Council Directive 2004/108/EC) – Low voltage directive (Council

Directive 2006/95/EC) – Radio and telecommunications terminal equipment

directive (Council Directive 1999/05/EC (Class 1))


aFunctions and operation

a3

3 Functions and operation

If you turn on the hot water at a draw-off point (mixer or separate tap), your electronicVED exclusive will automati-cally heat up the drinking water.

a Danger!Risk of being scalded by hot water.The water temperature at the draw-off points can reach up to 60 °C.

> When using an electronicVED exclusive electric instantaneous water heater, be aware of the risk of scalding from high outlet temperatures.

> Set your electronicVED exclusive to a maximum of 43 °C if you want to be pro-tected from scalding.

> Section 3.2.7 "Setting the maximum tem-perature" contains all relevant informa-tion on the "scald protection" function, which can be configured on your elec-tronicVED exclusive.

- + Memo eco

°C38,5- +

2 1

3.1 Display

> Press the + button (1) until the desired temperature is reached. The hot water that you can now take from the draw-off point will be at the desired temperature.

> If the temperature is too high, press the — button (2). The water drawn will be cooler.

> Choose a temperature of between 20 °C and 60 °C to see what suits you best.

i All important display set-up options for your

electronicVED exclusive are described in section 3.2.

3.1 When using the remote control

i When controlling your electronicVED exclusive

using the remote control (article number: 0020084761), ensure that all functions are acti-vated, called up and configured exactly as on your electronicVED exclusive's built-in display.

> If you want to start up the remote control, remove it from the packaging. – Batteries are already inserted. The remote control is

synchronised with its electronicVED exclusive ex works.

> Press any button on the remote control to set parameters. – Section 3.2 describes how to configure the functions on

the display. > Configure the desired parameters either directly in the

VED's display or using the remote control. – When changing temperatures, the settings from the

respective other unit are adopted and displayed. – Other settings, e.g. the display language or the

energy-consumption display, are not adopted from the respective other unit. For example, you can set the language to English for the remote control and set your own language on your VED's display.

3.1.1 Changing the batteries

Your remote control (article number: 0020084761) is ready for operation when purchased; two batteries are inserted. When the batteries are flat, a battery symbol appears in the remote-control display. The batteries should be replaced with new ones immediately.

> Use AA batteries only. You can also use rechargeable NiCd or NiMH batteries (likewise AA size).

1

3.2 Changing the batteries in the remote control

Functions and operation


3

> Undo the four screws (1) on the rear side of the radio remote control.

> Open the rear side. > Insert the two batteries (AA type). > Screw the front and rear sides of the radio remote con-

trol back together. > Take extra care to ensure that the seal is correctly

inserted when reassembling the remote control.

b Caution.

Possible water damage to the remote control.The remote control is water-tight in accord-ance with the IP 68 level of protection. This dictates that the seal should be correctly inserted in the rear cover of the remote control. If this is not the case, water can enter and damage the remote control.

> Ensure that the rubber seal is correctly inserted when changing the batteries.

i Spent batteries should not be disposed of with

household waste. Observe local regulations when disposing of them.

3.2 Setting the display parameters

i The electronicVED exclusive display can be, but

does not have to be, set up before checking the function. It is sensible to first only set the desired hot water temperature.

The current performance features of the electronicVED exclusive are displayed as soon as the unit is connected and configured. When in operation, the display shows the selected water temperature. Furthermore, the maximum water temperature that can be set will be displayed on the uppermost display line. This maximum temperature can be set freely and can be between 30 °C and 60 °C. The follow-ing display is an example of this.

max. 42 °C

42.0 °C- + MEMO eco

The set target temperature is factory-set to 42 °C.

The setting and display options for your VED display are described in the following excerpts in the order that they appear in the menus.To access the current temperature setting quickly, you always have two options:

> Set the current hot water temperature directly by using the +/— buttons.

or > Set the current hot water temperature using the MEMO

button.



3

3.2.1 Key combinations on the display

Key combination Result

Briefly press Memo and eco simultaneously

Main menu for setting basic func-tions, such as the scald protection function, language settings and energy consumption.

Press and hold Memo for longer than 3 seconds

Installer menu for deactivating the remote control and calling up unit data.

Press — and + simultaneously for longer than 3 seconds

Key lock is activated. To cancel the lock once more, press and hold — and + for longer than 3 seconds.

3.1 Display key combinations

3.2.2 Setting the water temperature

> Press the + button to increase the water temperature. > Press the — button to decrease the temperature.

i The water temperature can be increased or

decreased in increments of half a degree Cel-sius. The range of temperatures that can be selected is between 20 °C and 60 °C.

3.2.3 Saved temperatures (Memo 1 to 4)

The memo function allows the current hot water tempera-ture to be changed quickly. By pressing the button twice you can set the desired temperature to one of 4 preset temperatures.

i You can change the preset temperatures at any

time. However, note that you cannot set a higher temperature than the maximum temperature set in the Scald protection menu; see section 3.2.7.

> Briefly press the MEMO button once. You will see the following display screen:

38 °C 42 °C 38 °C 38 °C

M1 M2 M3 M4

> Briefly press the button that corresponds to your target temperature, e.g. M2.

You will see the following display screen:

max. 42 °C eco

42.0 °C

- + MEMO eco

The desired preset temperature is selected.

> If you want to change the preset target temperature, press and hold the M2 button for 3 seconds.

You will see the following display screen:

Memory 2

42.0 °C

- + save

The current saved temperature and the memory location (here: Memory 2) are displayed.

> Use the + and — buttons to change the Memory tempera-ture that is displayed.

> Briefly press the save button once to save this tempera-ture.



3

> Press the button to quit the Memory function. If you previously changed the temperature without pressing the save button, this change will not be remembered.

3.2.4 Configuring the eco function

The eco function is a function that saves water and energy. If the eco function is activated, the water flow is limited by your VED to 8 litres per minute. Typical water consumption is around 10 litres per minute.

> Press the eco button to activate the function. > Press the eco button again to deactivate the function.

max. 42 °C eco

38.0 °C

- + MEMO eco

If the eco function is activated, it will be shown on the top-right of the display.

3.2.5 Activating/deactivating the key lock

> Press and hold both the + and — buttons at the same time for longer than 3 seconds.

> Press and hold both the + and — buttons at the same time for longer than 3 seconds again to deactivate the key lock.

i When the key lock is activated, pressing any dis-

play button will not have any effect; all functions are locked.

3.2.6 Call up the menu and return to the temperature display

> Briefly press the Memo and eco buttons simultaneously to access the menu.

> Briefly press the button to return to the temperature display.

Menu

Display settings

Scald protection

Consumption

Select language

ok

All the basic VED settings will be carried out from this menu.

i Use the button to go back through the menus

one step at a time.

> Continuously press the button until the initial display screen is shown again.

max. 42 °C

42.0 °C

- + MEMO eco



3

3.2.7 Setting the maximum temperature (scald protection)

a Danger!Risk of being scalded by hot water.The water temperature at the draw-off points can reach up to 60 °C.

> When using an electronicVED exclusive electric instantaneous water heater, be aware of the risk of scalding from high outlet temperatures.

> Set your electronicVED exclusive to a maximum of 43 °C if you want to be pro-tected from scalding.

The scald protection function can only be deactivated at the factory.

> Press the Memo and eco buttons simultaneously to access the Menu.

Menu

Display settings

Scald protection

Consumption

Select language

ok

The cursor is next to the Display settings menu point. > Press the button.

The cursor is next to the Scald protection menu point. > Press the ok button.

Scald protection

max. temperature

Comfort temperature

ok

The cursor is next to the max. temperature menu point. > Press the ok button.

Set max. temperaturecurrent: 42.0 °C

new 60.0 °C

- + ok

> Press the + button to increase the temperature. > Press the — button to decrease the temperature. > Press the ok button to confirm the chosen temperature. > Press the button twice to return to the "Scald protec-

tion" menu.The selected maximum temperature is displayed on the top line of the water temperature display screen.

i It is not possible to request a higher water tem-

perature than the temperature selected and con-firmed using the ok button. Also note that the maximum temperature interacts with the Com-fort temperature function. For example, there is no benefit to setting a maximum tem-perature which is the same as the comfort temperature.



3

3.2.8 Setting/activating and deactivating the comfort temperature (scald protection)


Menu

Display settings

Scald protection

Consumption

Select language

ok

The cursor is next to the Display settings menu point. > Press the button.

The cursor is next to the Scald protection menu point. > Press the ok button.

Scald protection

max. temperature

Comfort temperature

ok

The cursor is next to the max. temperature menu point. > Press the button once.

Scald protection

max. temperature

Comfort temperature

ok

The cursor is next to the Comfort temperature menu point.

> Press the ok button.

Set comfort temperature current: --°C

new -- °C

- + ok

> Press the + button to increase the temperature. > Press the — button to decrease the temperature. > Press the ok button to confirm the chosen temperature. > Press the button to return to the "Scald protection"

menu.The comfort temperature selected here can be altered by briefly pressing the +/- key combination. If water is drawn off within the next 30 seconds, the water will be heated to this temperature. If no water is drawn off in this time, or if the water stops being drawn off, the display will return to the previous temperature setting.

To deactivate the Comfort temperature function, proceed as follows on the Set comfort temperature display:

> Press the — button to decrease the temperature to below 20 °C.

-- °C will then be displayed. This means that the comfort temperature has been deactivated.



3

i Also note that the comfort temperature inter-

acts with the max. temperature function. For example, there is no benefit to setting a comfort temperature which is the same as the maximum temperature.

3.2.9 Displaying and resetting the energy and water consumption (Reset)

i Note that the electronicVED exclusive is not a

calibrated measuring instrument. Due to toler-ances in the electronic semiconductor and sen-sors, the values displayed may deviate from the real values.

i The energy consumption data displayed cannot

be legally used to prepare or compare energy consumption calculations of any kind.


Menu

Display settings

Scald protection

Consumption

Select language

ok

The cursor is next to the Display settings menu point. > Press the button twice.

The cursor is next to the Consumption menu point. > Press the ok button.

Consumption

Energy consumption

Water consumption

ok

The cursor is next to the Energy consumption menu point. You can display the energy consumption in kilowatt hours or water consumption in litres for a specific period of time (select using the or button).

> After selection, press the ok button.

Energy consumption

since reset

the last 30 days

the last 365 days

ok

The cursor is next to the Since reset menu point. The display screen illustrated above is an example of the Energy consumption sub-menu. Regardless of whether or not you wish to query the energy or water consumption, the time cycles remain identical. You can display the energy or water consumption data since the unit was last reset to its factory settings (Reset), or the last month (30 days) or the last year (365 days).

> Press the or the button to make a selection. > Confirm this change by pressing the ok button.

To reset the display of either the energy or water consump-tion data to 0, proceed as follows:

> Within the Consumption menu, select either Energy consumption or Water consumption.

> Press the ok button.The cursor is next to the Since reset menu point.




3

Energy consumptionSince reset

13.4 kWh

Reset

The display screen illustrated above is an example of the Energy consumption sub-menu. Follow the same proce-dure to reset the display of either the energy or water con-sumption data.

> Press the Reset button.The display will be reset to 0.

> Press the button to quit the display.

3.2.10 Setting the display language


Menu

Display settings

Scald protection

Consumption

Select language

ok

The cursor is next to the Display settings menu point. > Press the button three times.

The cursor is next to the Select language menu point.


German

English

Polish

Croatian

Slovenian

Serbian

ok

The language marked with an arrow is the language used on the display.

> Press the or button to change the display language. > Confirm this change by pressing the ok button.



3

3.2.11 Setting the display lighting


Menu

Display settings

Scald protection

Consumption

Select language

ok

The cursor is next to the Display settings menu point. > Press the ok button.

Display settings

Lighting

Output display

Volume flow display

ok

The cursor is next to the Lighting menu point. > Press the ok button.

Lighting is auto

on

off

auto

ok

The following settings are possible:

on The display lighting is permanently on.

off The display lighting is permanently off.

auto

When drawing hot water, the display lighting turns on. When operating the display, e.g. setting the temperature, the display lighting also turns on. If nothing is happening, the display lighting turns off.

3.2.12 Activating the power display


Menu

Display settings

Scald protection

Consumption

Select language

ok


Display settings

Lighting

Output display

Volume flow display

ok

The cursor is next to the Lighting menu point. > Press the button.

The cursor is next to the Output display menu point. > Press the ok button.



3

Output display is on

on

off

ok

> Press the or button to activate (on) or to deactivate (off) the power display.

> Confirm this change by pressing the ok button.

i If the power display is activated, the current

energy consumption will be displayed in kilo-watts when drawing water.

Example:

max. 60 °C eco

41.0 °C 12.7 kW

- + MEMO eco

3.2.13 Activating the flow rate indicator


Menu

Display settings

Scald protection

Consumption

Select language

ok


Display settings

Lighting

Output display

Volume flow display

ok

The cursor is next to the Lighting menu point. > Press the button twice.

The cursor is next to the Volume flow display menu point.




3

Volume flow display is on

on

off

ok

> Press the or button to activate (on) or to deactivate (off) the volume flow display.

> Confirm this change by pressing the ok button.

i If the volume flow display is activated, the cur-

rent water flow will be displayed in litres per minute when drawing water.

Example:

max. 42 °C eco

41.0 °C

8 l/min

- + MEMO eco


Energy-saving tipsDetecting and rectifying faults 5, Care

46

4 Energy-saving tips

You can help to save energy by following the tips and advice below:

Appropriate hot water temperatureThe water should only be heated up to the extent that is necessary for use. Any further heating will result in unnec-essary energy consumption. For you, this means that you should:

> Activate the eco function on your electronicVED exclu-sive (press the eco button). This will reduce the water consumption to 8 litres per minute.

> Wherever possible, do not set the temperature higher than you actually require. Avoid unnecessarily mixing in cold water.

5 Detecting and rectifying faults

e Danger!Risk of death from electric shock.Live lines and connections may cause a potentially lethal electric shock.

> Do not attempt to repair the unit your-self under any circumstances.

> Under no circumstances should the unit cladding be removed.

> If the unit ever malfunctions, inform an approved heating specialist company immediately.

6 Care

There is no need to care for your Vaillant electronicVED exclusive electric instantaneous water heater because all internal parts are protected against dirt and moisture. You can clean the exterior of the unit with a damp cloth and a little soap.

i Do not use any abrasive scouring or cleaning

agents when cleaning the unit cladding.


MaintenanceRecycling and disposal

78

7 Maintenance

The permanent operational readiness, operational safety, reliability and long service life of your electronicVED exclu-sive electric instantaneous water heater require inspections and maintenance work to be carried out by a competent person.

a Danger!

Risk of injury and material damage due to incorrect maintenance and repairs.If you fail to carry out maintenance, or if you carry this out incorrectly, this may adversely affect the operating reliability of the unit.

> Never attempt to perform maintenance work or repairs on your electronicVED exclusive yourself.

> You must employ an approved heating specialist company to complete such work. We recommend making a mainte-nance agreement.

b Caution.

Possible material damage to the unit.A lack of maintenance can affect the func-tional safety of the VED. E.g. unit defects caused by limescale formation. In areas of hard water (more than 2.5 CaCO3 mmol/l) or very hard water (more than 3.6 CaCO3 mmol/l), a significantly more frequent maintenance interval may be required.

> Have your electronicVED exclusive inspected at least every 2 years by a competent person.

> If you live in an area with very hard water, Vaillant recommends that you have the maintenance service carried out once a year by a competent person.

8 Recycling and disposal

If your Vaillant unit is labelled with this symbol (identification plate), it should not be disposed of with your household waste at the end of its useful life.

> In this case, ensure that your Vaillant unit and any acces-sories are properly disposed of at the end of its/their useful life.

Installation instructions

electronicVED exclusive

Electric instantaneous water heater

For the competent person

Installation instructions

Table of contents

2 Installation instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00

Table of contents

1 Notes on the documentation ..................................... 31.1 Storing documents .......................................................... 31.2 Applicability of the instructions ................................... 3

2 Safety .................................................................................42.1 Classification of action-related warnings...................42.2 Intended use ......................................................................42.3 General safety information ............................................42.4 Standards and directives ...............................................52.5 CE label ...............................................................................5

3 Description of the unit and functions .....................63.1 Overview ............................................................................63.2 Functions ............................................................................6

4 Installation ....................................................................... 74.1 Scope of delivery ............................................................. 74.2 Installation site ................................................................. 74.3 Required minimum clearances .....................................84.4 Mounting the unit to the wall........................................84.5 Connecting the hot and cold water ........................... 104.6 Connecting the unit to the electricity supply ..........12

5 Start-up/decommissioning .........................................135.1 Purging the unit ..............................................................135.2 Fitting the unit cladding ................................................135.3 Setting the display parameters ...................................145.4 Checking the system's functionality ..........................175.5 Decommissioning ............................................................17

6 Handing over to the operator .................................. 18

7 Procuring spare parts and accessories ................ 18

8 Detecting and rectifying faults ................................198.1 Possible problems when using the

remote control ............................................................... 20

9 Inspection and maintenance ................................... 20

10 Technical data ................................................................21

Notes on the documentation

Installation instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00 3

1

1 Notes on the documentation

The following information is intended to help you through-out the entire documentation. Other documents apply in addition to these installation instructions.We accept no liability for any damage caused by failure to observe these instructions.

Observing other applicable documents > You must observe all the operating and installation

instructions included with the system components.

1.1 Storing documents

> Pass these instructions and all other applicable docu-ments and, if necessary, any required tools to the system operator.

1.2 Applicability of the instructions

These instructions apply for the following products only:

Type designation Article number

VED E 18/7 E HK 0010015731

VED E 21/7 E HK 0010015732

VED E 24/7 E HK 0010015733

VED E 27/7 E HK 0010015734

1.1 Identifying the unit

The unit's article number is part of the serial number. To find out the serial and article numbers refer to the identifi-cation plate. The identification plate can be found to the right, next to the operator control panel, under the cover.


aSafety

a2

2 Safety

2.1 Classification of action-related warnings

The action-related warnings are classified in accordance with the severity of the possible danger using warning symbols and signal words:

Warning symbol

Signal word Explanation

aDanger!

Imminent danger to life or risk of severe personal injury

e Danger!Risk of death from electric shock

a Warning.Risk of minor personal injury

b Caution.Risk of material or environmen-tal damage

2.1 Meaning of warning symbols and signal words

2.2 Intended use

The Vaillant electronicVED exclusive electric instantaneous water heater has been constructed using state-of-the-art technology in accordance with the recognised safety rules and regulations. Nevertheless, there is still a risk of death or serious injury to the user or others or of damage to the unit and other property in the event of improper use or use for which the unit is not intended.This unit is not designed to be used by persons (including children) with limited physical, mental or sensory capabili-ties or by persons who do not have enough experience and/or knowledge, unless they are supervised by a person who is responsible for their safety or have been instructed by him/her about how to use the unit.Children must be supervised to ensure that they do not play with the unit. The Vaillant electronicVED exclusive electric instantaneous water heater must only be used to heat up drinking water. The Vaillant electronicVED exclusive electric instantaneous water heater is suitable for use only in an enclosed, frost-free room in a domestic environment. The Vaillant electron-icVED exclusive electric instantaneous water heater is not suitable for use in secondary circulation lines.

Any other use, or use beyond that specified, shall be con-sidered improper use. Any direct commercial or industrial use is also deemed to be improper. The manufacturer/sup-plier is not liable for any claims or damage resulting from improper use. In this case, the user alone bears the risk. Intended use includes the following: – Observance of accompanying operating, installation and

servicing instructions for Vaillant products as well as for other parts and components of the system

– Installing and fitting the boiler in accordance with the boiler and system approval

– Compliance with all inspection and maintenance condi-tions listed in the instructions.

a Caution.Improper use of any kind is prohibited.

2.3 General safety information

Installation, start-up, maintenance and repairAll work involved in the installation, initial start-up, mainte-nance and repair of the electronicVED exclusive electric instantaneous water heater must only be carried out by an approved heating specialist company, who also assumes the responsibility for installing the unit properly and commis-sioning it for the first time. The electronicVED exclusive electric instantaneous water heater must be installed in strict compliance with these installation instructions.

Risk of death from electric shock from live lines and connections!During all work on the open unit, particularly on electrical lines and connections, there is a risk of death from electric shock.

> When working on the open unit, interrupt the power sup-ply. The unit must be de-energised.

> Check that the unit is de-energised. > Ensure that the power cannot be restored inadvertently

to the unit while you are working on it.

Risk of death from electric shock from live lines and connections!The drinking water used must demonstrate resistance greater than or equal to 900 ohm at 15 °C. Otherwise, the unit must not be used.

> Before installing the unit, ask your water company to inform you about the water resistance and conductivity.

Risk of being scalded by hot water!If the VED is connected to a solar thermal system, the intake temperature must be limited to a maximum of 60 °C by fitting structural precautions (e.g. a mixer valve). When using the unit in conjunction with a solar thermal system, we recommend setting the intake temperature to between 38 °C and 40 °C.


aSafety

a2

> Set the scald protection function on your electronicVED exclusive to a maximum of 43 °C if you want to be pro-tected from scalding.

> Inform the operator that there is a risk of scalding when the water temperature exceeds 43 °C.

Material damage inside the unit caused by poor quality waterAn electronicVED exclusive electric instantaneous water heater must only be used to heat up drinking water. This potable water must meet the specific German or Austrian legal requirements for quality. Otherwise, it is not possible to rule out the risk of corrosion inside the unit.

Material damage due to improper use and/or unsuitable toolsImproper use and/or the use of unsuitable tools may result in material damage (e.g. water leaks).

> Always use a suitable open-end spanner to tighten or undo threaded connections.

> Do not use pipe wrenches, extensions, etc.

Risk of frost.If an electronicVED exclusive electric instantaneous water heater is placed out of operation for a relatively long period of time in an unheated room in cold weather, the water in the unit and pipes may freeze.

> Install the electronicVED exclusive electric instantaneous water heater in a permanently frost-free room.

> Store the electronicVED exclusive electric instantaneous water heater in a permanently frost-free area.

Material damage to the appliance caused by changesNo changes must be made to the electronicVED exclusive.

> Do not make any changes to the unit yourself. > Inform the operator that they must not make any

changes to the unit or to the electricity lines or water pipes.

In the event of a fault > Read the "Detecting and rectifying faults" section to find

out what you must do in the case of fault. > Inform the operator that they must not attempt to repair

the unit under any circumstances. > Inform the operator that they must not remove the unit

cladding.

2.4 Standards and directives

Please observe the existing national rules and regulations, standards, laws and guidelines.

2.5 CE label

CE labelling shows that the electronicVED exclusive elec-tric instantaneous water heaters comply with the basic requirements of the following directives: – Electromagnetic compatibility directive (Council Directive

2004/108/EC) – Low voltage directive (Council Directive 2006/95/EC) – Radio and telecommunications terminal equipment

directive (Council Directive 1999/05/EC (Class 1))

Description of the unit and functions


3

3 Description of the unit and functions

3.1 Overview

4

3

1

5

6

7

89

2

10

12

11

3.1 Overview of the electronicVED exclusive

Number Component

1 Mains connection terminal

2 Motorised valve (water-volume controller)

3 Upper anti-spray-water sleeve

4 Adjustment spindle

5 Safety switch

6 Electronics

7Alternative location for the mains connection terminal (see number 1)

8 Cold water connection

9 Lower anti-spray-water sleeve

10 Hot water connection

11 Safety thermostat (STL)

12 Heating block

3.1 Components of the electronicVED exclusive

3.2 Functions

Using bare wire heating in the unit's heating block, drinking water is heated and can then be drawn from one or more points. The electronics measure the temperature of the cold water supply and the water volume flow. The electrical per-formance required to heat the water to the required tem-perature is calculated using these two values. The unit's dis-play temperature can be changed in increments of 0.5 °C. The volume and heat of the hot water is dependent on the electronicVED exclusive performance category and settings. The output of each VED unit is listed in section 11. In addi-tion, the water and energy consumption data can be linked to the performance data via the display. This means that the electronicVED exclusive can be configured in such a way that both the current and cumulative energy consump-tion can be displayed and called up. The built-in "Memo" function allows four fixed temperatures to be saved and these can be called up by pressing a button or by remote control.

Installation


4

4 Installation

a Risk of death!

Risk of death due to improperinstallation!All work involved in the installation, start-up, maintenance and repair of the electron-icVED exclusive electric instantaneous water heater must only be carried out by a recognised competent person, who also assumes the responsibility for installing the unit properly and commissioning it for the first time. The electronicVED exclusive elec-tric instantaneous water heater must be installed in strict compliance with these installation instructions.

i Flush the cold water pipes thoroughly before

installation.

4.1 Scope of delivery

> Check that the scope of delivery is complete (see Table 4.1).

Instructions for use and installation

EXPen

electronicVED exclusive

390

322

Hot water connection Cold water connection

Electrical connectionfrom below

If required:Add. fixing point on back wall

Installation templatefor VED

100

Electrical connection from above

170

Mounting plate

Fixing points

3

7

6

2

18

4

5

9


No. Quantity Name

1 1electronicVED exclusive electric instantane-ous water heater

2 1 Operating and Installation Manual

3 1Carton containing fixings (2 bolts, 2 rawl plugs, 1 seal, 1 special fixing screw)

4 1R 1/2 cold water connection piece with a cold water stop valve

5 1 R 1/2 hot water connection piece

6 2 Double nipple

7 1 Installation plate

8 1 Installation template

9 1Radio remote control with 2 batteries (no illustration)


The electronicVED exclusive electric instantaneous water heater is completely pre-assembled. Once the unit has been fitted to the wall, only the water and electrical installation needs to be completed.

4.2 Installation site

b Caution.Risk of frost damage to the unit.If an electronicVED exclusive electric instantaneous water heater is placed out of operation for a relatively long period of time in an unheated room in cold weather, the water in the unit and pipes may freeze. This results in damage to the unit.

> Install the unit in a permanently frost-free room.

i The electronicVED exclusive electric instantane-

ous water heater meets the current safety regu-lations for protected zone 1 and can therefore also be installed above a bath or in a shower area.

> Wherever possible, install the unit near the draw-off point that will be most used.

Installation


4

4.3 Required minimum clearances

D

E

B B

C

A

C

4.2 Installation clearances

KeyA At least 50 mmB At least 50 mmC At least 120 mmD At least 130 mmE Maximum 22 mm

The bottom section of the unit (D) must be level with the unit's bearing area on the wall; to a height of at least 130 mm. Any possible wall offset (e.g. due to tiles) must not exceed 22 mm (E). The distance to the floor must be at least 120 mm (C). The distance above, to the left and to the right of the unit must be at least 50 mm.

4.4 Mounting the unit to the wall

4.4.1 Unit and connection dimensions

240100

70

50

27

7

48

13

22 5

16

19

99R

1/2

35 35

1

2

3

5

6

4

4.3 Boiler dimensions

Key1 Upper anti-spray-water sleeve2 Central attachment3 Display4 Hot water connection R 1/25 Cold water connection R 1/26 Lower anti-spray-water sleeveR Outside thread R 1/2

39

0

32

2

8585

1

1

23

4.4 Connection dimensions

Key1 Installation plate2 Cold water connection3 Hot water connection

Installation


4

4.4.2 Removing the unit cladding

1

3

4

2

5

4.5 Removing the unit cladding

> Grip the two straps (1) on the panel (2). > Splay the two straps (pull them away from the unit). > Remove the panel (2). > Undo both bolts (3). > Fold up the cover (4). > Remove the display plug from the unit's electronics

(slot X7) (5). > Remove the cover (4) from the unit.

4.4.3 Installing the unit

i The electronicVED exclusive electric instantane-

ous water heater must be mounted on the wall vertically.

> Ensure that the wall and all fixing elements are able to bear the load. An electronicVED exclusive weighs approx. 4.4 kilos when filled with water.

> Using figures 4.2 to 4.4, double check that the desired installation location meets the requirements.

39

0

32

2

85852

1

1

2

4.6 Fitting the installation plate

> Hold the installation template against the wall and mark the fixing points.

> Fix the installation plate (1) to the fixing points (2) using the rawl plugs and bolts.

i When replacing a unit, you can use the previous

drill holes as long as they are compatible with the additional holes on the installation plate.

e Danger!

Risk of death from electric shock due to water penetration if the anti-spray-water sleeve is completely cut away.The anti-spray-water sleeve should prevent water penetrating the unit along the length of the mains connection cable. If the anti-spray-water sleeve is completely cut away, water can very easily penetrate and dam-age the unit and, in the worst case sce-nario, can cause a potentially lethal electric shock.

> Never cut off the anti-spray-water sleeve completely.

> Cut the end of the anti-spray-water sleeve in such a way that the sleeve tightly surrounds the mains connection cable.

Installation


4

4.7 Cutting the anti-spray-water sleeve for the cable routing

> Depending on the location of the mains connection cable in relation to the wall, fit the anti-spray-water sleeve at the top or the bottom (see fig. 4.7).

i Fit the anti-spray-water sleeve in such a way

that the sleeve tightly surrounds the mains con-nection cable. Water must not penetrate the unit's interior.

> Feed the cable through the anti-spray-water sleeve into the unit's interior.

4

1

2

3

4.8 Mounting and adjusting the unit

> Fit the unit (2) to the retaining screw (1) on the installa-tion plate.

> Adjust the unit using the adjustment spindle (4). > Fix the unit using the fixing screw (3). > Align the unit (vertically and observing the clearances

detailed in Fig. 4.2 to 4.4).

i As an option, the electronicVED exclusive can be

converted into an under-counter unit. To do this, the display must be rotated and screwed to the unit cladding. Then the cladding must be turned and attached to the unit in this rotated position.

4.9 Optional under-counter conversion

4.5 Connecting the hot and cold water

i 18, 21 and 24 kW electronicVED exclusive units

are suitable for post-heating water that has already been pre-heated. It is possible to have inlet temperatures of up to 60 °C. The unit can thus be connected to existing solar and/or heat pump systems. 27 kW electronicVED exclusive units are not suitable, because the water inlet temperature must not exceed 25 °C.

> Observe the following conditions in order to correctly fit the water connections: – All cold and hot water pipes can be made of steel,

copper or plastic. It is important to check with the manufacturer that pipes made of plastic can be used with temperatures of 65 °C in normal operating mode. In addition, plastic pipes must be suitable for a signifi-cantly higher load in the short term.

– An expansion relief valve on the cold water pipe is not required.

Installation


4

– To simplify installing the water connection, the bottom section of the unit can be folded up (see (1) in Fig. 4.10).

> After fitting the connection, you must fold the bot-tom section of the unit back down until it is engaged again.

> Never remove the folding frame.

1

4.10 Unit's folding frame

b Caution.

Risk of damage to the unit resulting from improper use and/or unsuitable tools.Improper use and/or the use of unsuitable tools may result in material damage (e.g. water leaks).

> Always use a suitable open-end spanner to tighten or undo threaded connections.

> Do not use pipe wrenches, extensions, etc.

b Caution.

Possible damage caused by leaking water connections.Leaks may occur due to strains in the line material.

> Take care not to strain the lines as you tighten the water connections.

b Caution.

Possible damage caused by unsuitable plastic pipes.Damage may be caused by unsuitable plas-tic pipes.

> When using plastic pipes, ensure that they withstand a maximum temperature of 95 °C and maximum pressure of 1 MPa (10 bar) for at least one hour (check manufacturer's specifications).

> When using plastic pipes, ensure that they conform to DIN EN ISO 15875 (check manufacturer's specifications).

1

2

34

5

6

7

4.11 Water connections

> Put hemp on the two double nipples (2 and 6) and use the connections to screw the double nipples to the wall (1 and 7).

> Insert the seals (3) in the cap nuts of the cold (4) and hot water connections (5).

> Screw the cold water connection piece (4) to the cold water connection double nipple (2) in the wall (1).

> Screw the hot water connection piece (5) to the hot water connection double nipple (6) in the wall (7).

> Insert a seal in the cap nut of the unit-side hot water connection.

Installation


4

b Caution.

Risk of damage due to pipes being blocked by foreign bodies in the water.A water filter that stops foreign bodies entering the unit must be fitted to the cold water flow. The unit must not be used with-out a water filter. A water filter has been fit-ted inside the cold water pipe at the fac-tory.

> During installation, check that the water filter is present.

> Check that the cold water filter fitted at the factory is in the correct position in the unit-side cold water connec-tion. The cold water filter is an additional seal on the cold water side.

4.6 Connecting the unit to the electricity supply

e Danger!

Risk of death from electric shock from live lines and connections!

> Isolate all supplies from the power supply before carrying out electrical work.

> Check that there is no voltage in the sup-ply lines and connections.

> Ensure that the power cannot be restored inadvertently to any of the sup-ply lines and connections while you are working on the unit.

> When connecting the electricity supply, also observe the local regulations from the electricity supply company as well as the specifications on the identification plate.

> Also note the following conditions: – The unit must be installed using a permanent connec-

tion. – The permanent connection must be equipped with a

customer-supplied partition that has a contact separa-tion of at least 3 mm on all lines. A line protection switch, for example, is suitable for this purpose.

– The unit must be connected to the protective earth. – The unit is delivered pre-assembled. When connecting

the electricity supply, only the electricity line needs to be fed in to the unit and connected. This happens using one of the two anti-spray-water sleeves that prevent water penetrating the unit; see Figure 4.7, Cutting the anti-spray-water sleeve for the cable rout-ing. The connection is fixed to the upper section of the unit at the factory. If required, it can be connected to the lower section of the unit but the electricity line must be fed through the lower anti-spray-water sleeve.

4.6.1 Electrical connection from above

The electricity line is fed through the upper anti-spray-water sleeve (2). Figure 4.7 explains how the anti-spray-water sleeve must be prepared.

> Connect the individual conductors to L1, L2 and L3, and the protective earth to the mains connection terminal (1 in Fig. 4.12).

3

3a

1

2

4

5

6

4.12 Electrical connection from above or below

4.6.2 Electrical connection from below

The electricity line is fed through the lower anti-spray-water sleeve (5). Figure 4.7 explains how the anti-spray-water sleeve must be prepared.

> Unscrew the mains connection terminal (1) (see Fig. 4.12). > Move the mains connection terminal (6), including the

internal cable, to the lower position (4) in the unit. > Screw the mains connection terminal to the lower posi-

tion (4). > Pay particular attention to the internal protective earth

(3) that is screwed to position 3a. > Check again that the mains connection terminal cables

are correctly positioned. > Connect the individual conductors to L1, L2 and L3, and

the protective earth to the mains connection terminal (1 in Fig. 4.12).

Installation


4

4.6.3 Optional load-shedding relay

If required, a load-shedding relay that conforms with cur-rent standards can be connected to the electronicVED exclusive. This relay will turn other power consumers off while hot water is being drawn off so that there is no over-loading. The load-shedding relay must fulfil the following criteria: – Input current < 15 A – Continuous current > 50 A > Install the optional load-shedding relay to the outer con-

ductor that is connected to the L2 mains connection ter-minal of the electronicVED exclusive.

Start-up/decommissioning


5

5 Start-up/decommissioning

5.1 Purging the unit

b Caution.

Risk of damage from heating wire dry fire.The unit must be purged every time it is started up. Otherwise, there is a risk of dry fire and, as a consequence, damage to the unit.

> Ensure that the unit is de-energised every time the unit is started up or decommissioned.

> Check that there is no voltage in the supply lines and connections.

> Ensure that the power cannot be restored inadvertently to any of the sup-ply lines and connections while you are working on the unit.

To start up the unit, proceed as follows: > De-energise the unit. > Open the cold water stop valve. > Close and open the hot water draw-off valve several

times. The unit will then be purged. In normal operating mode, the unit will not need to be purged again.

2

1

5.1 Safety switch

> Push the safety switch (1) in, as shown in Figure 5.1.

i If the display cable is not plugged into the elec-

tronics, the power cannot be regulated. The water temperature that the unit then provides will comply with the last value set.

5.2 Fitting the unit cladding

2

1

3

4

5.2 Fitting the unit cladding

> Plug the display cable into slot X7 of the unit's electron-ics, as illustrated in Figure 5.1, position (2).

> Put the unit cladding (3) on. > Tighten both bolts (2). > Grip the panel (1) using the two straps. > Splay the two straps (slightly pull the panel apart). > Put the panel (1) on. > Make sure that the hot water draw-off valve is closed. > Connect the unit to the electrical mains (switch on the

fuse).



5

5.3 Setting the display parameters

i The electronicVED exclusive display can be, but

does not have to be, set up before checking the function. It is sensible to first only set the desired hot water temperature.

The current performance features of the electronicVED exclusive are displayed as soon as the unit is connected and configured. When in operation, the display shows the desired water temperature. Furthermore, the maximum water temperature that your VED provides will be displayed on the top display line. This maximum temperature can be set freely and can be between 30 °C and 60 °C. The follow-ing display is an example of this.

max. 42 °C

42.0 °C- + MEMO eco

The set target temperature is factory-set to 42 °C.

To access the current temperature setting quickly, you always have two options:

> Set the current hot water temperature directly by using the +/— buttons.

or > Set the current hot water temperature using the MEMO

button.

i The settings for the installer menu on the elec-

tronicVED exclusive display are described below. You can find a detailed description of all the dis-play functions in the instructions for use included in this document.

5.3.1 Calling up the installer menu

> Press and hold the Memo button for longer than 3 sec-onds to access the installer menu.

Appliance data

Remote control

ok

Using this menu, you have access to the current and cumu-lated unit data and to the settings for the remote control.

5.3.2 Displaying unit data

You are in the installer menu. The cursor is next to the Appliance data menu point.


Display Appliance data

current

cumulated

ok



5

The cursor is next to the current menu point. > Press the ok button.

Current appl. data

Inlet temp. 21 °C

Desired temp. 38 °C

Outlet temp. 24 °C

Output 12.0 kW

Flow rate 8.0 l/min

ok

The following information is displayed:

Inlet temp.The current temperature of the drinking water, as measured at the unit's cold water inlet.

Desired temp.The target temperature set on the unit for the hot water output.

Outlet temp.The current temperature of the hot water, as measured at the hot water outlet.

OutputThe unit's current output, measured in kilo-watts.

Volume flowThe current flow rate, measured in litres per minute.

5.1 Current unit data

> Press the button to return to the Display Appliance data menu.

The cursor is next to the current menu point. > Press the button.

The cursor is next to the cumulated menu point. > Press the ok button. The cumulated unit data will be dis-

played.

Appl. data history

Operated time 548 h

Period of use 112 h

Enery 107 kW

Water 2538 l

ok

The following information is displayed:

Operated timeThe time in hours that the unit was con-nected to the power supply.

Period of useThe time in hours that the unit has pro-duced hot water.

EneryEnergy consumption in kilowatt hours since the unit was connected to the power supply.

WaterWater consumption in litres since the unit was connected to the power supply.

5.2 Cumulated unit data

5.3.3 Connecting the remote control

The remote control included in the scope of delivery of the VED is connected to the VED at the factory. You have the option of connecting up to three further remote controls of the same type (article number: 0020084761) at a time to the VED.

i The following description of how to connect the

remote control requires the operational readi-ness of the remote control (batteries inserted and casing sealed closed). Section 3.1.1 of the operating instructions describes how to insert the batteries.

i The VED's remote control (article number:

0020084761) works in exactly the same way as the VED's display. The buttons on the remote control and the way in which it is operated are identical to the electronicVED exclusive electric instantaneous water heater.

To connect the remote control to the VED, you must set certain parameters on the remote control and on the VED.

> Press any button on the remote control. The following display is shown on the remote control:



5

to search Base

Press [Ping]

Start sleep

> Press the Start button on the remote control.The following message is shown on the display:

RRC:

4F 19 C9 00

Request to connect

Do you accept it?

Yes No

> Press the Yes button on the VED to confirm the connec-tion between the remote control and the VED.

> Press the Yes button on the remote control.

The message on both displays (VED and remote control) switches automatically to the temperature display. In the process, the remote control first adopts the VED's settings. From this point onwards, every setting for the unit can be altered both in the VED's display and via the remote control.

5.3.4 Disconnecting the remote control

Disconnect the remote control from the VED at the VED.You are in the installer menu. The cursor is next to the Appliance data menu point.

> Press the button.The cursor is next to the Remote control menu point.


Remote controldisconnect

No. 1 conn.

No. 2 conn.

No. 3

No. 4

ok

> To disconnect a remote control from the VED, set the cursor to the remote control that you want to disconnect (remote control no. 2 in the example).

> Press the ok button. The remote control's connection ID is displayed.

RRC ID:

E8 24 F2 4C

Start sleep

> Press the sleep button The connection ID is deleted. The remote control is no longer connected to the VED. Section 5.3.3 describes how the remote control is connected to the VED.

> Press the button to return to the Connect Remote control menu.



5

5.4 Checking the system's functionality

a Danger!

Risk of being scalded by hot water!The outlet temperatures at the draw-off points can be up to 60 °C. and can cause scalding.

> Set the scald protection function on your electronicVED exclusive to a maximum of 43 °C if you want to be protected from scalding.


> Using the display buttons, test the unit's output by trying the running water at a draw-off point.

The water temperature on the electronicVED exclusive can be set in increments of 0.5 °C.

- + Memo eco

°C38,5- +

2 1

5.3 Output selector switch

> Press the + button (1) or the — button (2) until the required set target temperature is shown in the display.

5.5 Decommissioning

5.5.1 Temporary decommissioning

The VED can be taken out of service temporarily, e.g. for maintenance work.

> De-energise the unit. > Close the cold water stop valve.

5.5.2 Permanent decommissioning

To shut down the VED permanently, proceed as follows: > De-energise the unit. > Close the cold water stop valve. > Carefully loosen the cold and hot water connections. > Capture the residual water (up to 0.4 litres) left inside

the unit using a suitable container. > Remove the unit from its mounting.


Handing over to the operatorSpare parts and accessories

67

6 Handing over to the operator

a Danger!

Risk of being scalded by hot water!Above a water temperature of 43 °C, there is a risk of scalding.


> Set the scald protection function on your electronicVED exclusive to a maximum of 43 °C if you want to be protected from scalding.

You must train the operator in the handling and function of their electronicVED exclusive.

> Provide the operator with all relevant instructions and unit documentation for safe-keeping.

> Go through the instructions for use with the operator. > Answer any questions the operator may have. > Draw special attention to the safety information which

the operator must follow. > Inform the operator of the necessity to ensure that the

system is regularly inspected/maintained by a competent person (inspection and maintenance contract).

> Make the operator aware of the need to keep the instruc-tions near the electronicVED exclusive.

7 Procuring spare parts and accessories

The original components of the unit were also certified as part of the CE declaration of conformity. If you do not use certified Vaillant genuine spare parts, this voids the CE con-formity of the unit. We therefore strongly recommend that you fit Vaillant genuine spare parts.You can find information about available Vaillant genuine spare parts from the contact address provided on the reverse of this document. – If you require spare parts for servicing or repair work,

use only Vaillant genuine spare parts.

The following accessory is available: – Spacer for wall mounting VED/7

Order no. 0020138088

Detecting and rectifying faults


8

8 Detecting and rectifying faults

The faults listed here must only be rectified by an approved heating specialist company. When rectifying faults, note the following:

> Only use genuine spare parts for repairs. > Make sure the parts are correctly fitted and that their

original position and alignment are retained. > When removing water-carrying parts, capture the resid-

ual water (up to 0.4 litres) left inside the unit using a suitable container.

i When diagnosing and rectifying faults, always

follow the order stated in Table 8.1 for each indi-vidual point.

Fault/cause Procedure Testing/rectifying

No power. 1. Check the electrical con-nections

Ensure that the unit is supplied with the L1, L2 and L3 mains voltage.Check the protective devices.De-energise the unit and open the unit cladding.Check all the connection line connectors.

Resistance is outside the range of < 200 ohm.

2. Check the electrical func-tion of the radiator

Undo the connections 1 and 4 from the electronics. Measure the resistance value on the lines between the connections 1 and 4.The resistance must be < 200 ohm.

Water flow not adequate, water pressure is too low.

3. Check the minimum water flow rate

Ensure that there is an adequate water flow rate of more than 3 l/min. If the water volume is too low, check the water pressure, the fittings and the filter in the inlet. If the required water volume is not reached, check the motorised valve.

Nothing shown on the dis-play, no function can identi-fied. The safety switch has been triggered.

4. Check the safety switch Carry out the checks as described in points 1 - 5. Once you have found the fault, start the unit up again. If you have not found the fault, do not start the unit up. When the safety switch is tripped, it can be assumed that there is a fault in the electronics. Replace the electronics and check whether electricity can pass through the coil of the safety switch. If no electricity passes through, this must also be replaced.

No hot water or fluctuation in the outlet temperature.

5. Check the electronics Slowly open a draw-off point near the unit until approx. 3 l/min. Check whether a relay switch (a click) can be heard.No switch (click) can be heard:De-energise the unit and remove the unit cladding.· Check that the impeller moves freely by blowing hard on the inlet side; if necessary, clean or replace the impeller.· Otherwise, replace the electronics. Switch (click) can be heard:Check that the water temperature reaches the target temperature. Fluctuation in the outlet temperature:·Replace the electronics. Water temperature is not reached:·- Water feels too cold even though the outlet temperature displayed corre-sponds to the target value. Check the external sensor and replace it if nec-essary.- The water volume displayed is lower than the actual water volume. The impeller is probably not turning correctly. Check the impeller for blockages.Check the motorised valve as described in point 6.· If the motorised valve functions correctly, change the electronics.

Flow rate cannot be set or the outlet temperature is not reached. Defective motorised valve.

6. Check the motorised valve The unit is ready for operation, the display electronics are connected, the unit cladding is closed. De-energise the unit for approx. 10 seconds. Switch the mains voltage on again. A motor noise must immediately be audible (the motorised valve is starting up). If you do not hear a motor noise, the valve is defective and must be replaced.If the motorised valve is working perfectly again, set the temperature to 60 °C. Quickly open a draw-off point with the highest flow rate possible (e.g. a bath). Then slowly reduce the flow rate and measure whether the selected outlet temperature is reached.

8.1 Possible faults and remedial action


Detecting and rectifying faultsInspection and maintenance

89

8.1 Possible problems when using the remote control

Problem-free operation of the radio remote control for the electronicVED exclusive is dependent on the environmental conditions at the place of use. For example, the transmis-sion of the radio signals may be impeded. Causes for this include objects in the path of the radio waves, e.g. walls, ceilings or other objects which can block radio waves. Other radio-transmission installations (e. g. weather stations) can also disrupt communication between the remote control and the electronicVED exclusive.

> If the operator is experiencing problems when using the radio remote control, refer them to the information pro-vided above.

> If the operator is experiencing problems when using the remote control, first refer them to the following general points: – The batteries must provide sufficient power. – The remote control must not be too far away from the

electronicVED exclusive.

9 Inspection and maintenance

e Danger!

Risk of death from electric shock from live lines and connections!

> Isolate all electrical supplies and connec-tions from the power supply before car-rying out maintenance or repair work.

> Check that there is no voltage in the sup-ply lines and connections.

> Ensure that the voltage cannot be inad-vertently restored to any of the supply lines and connections while you are working on the unit.

– A functional and visual inspection of the unit must be carried out every three years by a competent person.

– If the water is very hard, more regular de-scaling may be necessary.

– If the water has a large volume of suspended matter, the water filter in the cold water flow must be replaced more often. At the same time, the water filter has a sealing function.

Carry out the following actions: > Replace the water filter in the cold water flow. > Check for deposits in the hot water pipe between the

heating block and the hot water connection. > When re-assembling the unit, insert a new flat seal into

the hot water connection. > Check whether the unit needs to be de-scaled and do so

if required.

i If the unit needs to be completely de-scaled,

attach a decalcification pump between the cold and hot water connection.

> After de-scaling the unit, flush it thoroughly with water. > After de-scaling the unit, purge it (see section 5).

b Caution.

Risk of damage caused by leaks.After changing the water filter in the cold water flow, leaks may occur due to the new filter being incorrectly fitted.

> When fitting a new water filter in the cold water flow, make sure that the filter is correctly positioned in the pipe and that the connection is sealed.

Technical data


10

10 Technical data

Type or sales designation/Article number

Unit VED E 18/7 E HK

0010015731VED E 21/7 E HK

0010015732VED E 24/7 E HK

0010015733VED E 27/7 E HK

0010015734

For supplying one or more draw-off points 1)

Design Appliance for wall-mounted installation

Configuration Bare wire heating coil

Capacity l 0.4

Dimensions Width Height Depth

mmmmmm

24048199

Weight when filled with water kg 4.4

Performance characteristics Electronically regulated output

Water inlet temperature °C 1...60 1...25

Switch-on water volume l/min 3

Switch-off water volume l/min 2.5

Switch-on flow pressure MPa >0.015

Max. water flow rate l/min 12 14 16 18

Rated overpressure MPa 1

Rated output kW 18 21 24 27

Minimum water resistance at 15 °C cm 900

Measuring voltage 3/PE~ 380-400 V; 50 Hz

Safety Complies with German and Austrian safety regulations; radio-shielded; does not inter-act with the mains supply

Level of protection IP 25 = sprayed-water protection

10.1 Technical data

1) = Closed unit (pressure resistant)

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Manufacturer

Supplier

0020176440 00 EXPen 052013 - Aquagreen Solutions · 2019-03-11 · 6 Operating instructions for the...

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