Vaillant EcoTEC plus SERIES Manuel utilisateur

For the operator

Operating instructions

ecoTEC plus

VU, VUW, VUI ..6/5-5

GB, IE

Operating instructions

Publisher/Manufacturer

Vaillant GmbH

Berghauser Str. 40 D-42859 Remscheid

Tel. +49 21 91 18‑0 Fax +49 21 91 18‑2810

[email protected] www.vaillant.de

Contents

2Operating instructions ecoTEC plus 0020245033_00

Contents

1 Safety .................................................................... 3

1.1 Action-related warnings ......................................... 3

1.2 Intended use .......................................................... 3

1.3 General safety information .................................... 3

2 Notes on the documentation .............................. 5

2.1 Observing other applicable documents ................. 5

2.2 Storing documents................................................. 5

2.3 Applicability of the instructions .............................. 5

3 Product description............................................. 5

3.1 Product design....................................................... 5

3.2 Control elements.................................................... 5

3.3 Displayed symbols................................................. 6

3.4 Information on the identification plate.................... 6

3.5 Serial number ........................................................ 7

3.6 CE label ................................................................. 7

3.7 Energy Saving Trust Endorsed Products .............. 7

3.8 Hot Water Association ........................................... 7

3.9 Benchmark............................................................. 7

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

4.1 Operating concept ................................................. 7

4.2 Basic display.......................................................... 8

4.3 Menu display.......................................................... 8

4.4 Adjustment and display levels ............................... 8

4.5 Cabinet-type casing............................................... 8

4.6 Opening the isolator devices ................................. 8

4.7 Starting up the product .......................................... 8

4.8 Switching on the product ....................................... 8

4.9 Setting the language.............................................. 8

4.10 Setting the heating flow temperature..................... 9

4.11 Setting the hot water temperature ......................... 9

4.12 Switching Comfort mode on and off ...................... 9

4.13 Activating the shift-load cylinder ............................ 9

4.14 Setting the target cylinder temperature ............... 10

4.15 Switching off the product's functions ................... 10

4.16 Guaranteeing the correct filling pressure of the

heating system..................................................... 10

4.17 Protecting the heating installation against

frost...................................................................... 11

5 Troubleshooting ................................................ 11

5.1 Detecting and rectifying faults ............................. 11

5.2 Calling up (Live monitor) status codes ................ 11

6 Care and maintenance ...................................... 11

6.1 Maintenance ........................................................ 11

6.2 Caring for the product.......................................... 11

6.3 Reading maintenance messages ........................ 11

6.4 Checking the condensate drain pipework and

tundish ................................................................. 11

7 Decommissioning.............................................. 12

7.1 Temporarily decommissioning the product.......... 12

7.2 Permanently decommissioning the product......... 12

8 Recycling and disposal..................................... 12

9 Guarantee and customer service..................... 12

9.1 Guarantee............................................................ 12

9.2 Customer service................................................. 12

Appendix ............................................................................ 13

A Operator level –overview ................................. 13

B Status codes –Overview .................................. 13

C Troubleshooting ................................................ 14

Safety 1

0020245033_00 ecoTEC plus Operating instructions 3

1 Safety

1.1 Action-related warnings

Classification of action-related warnings

The action-related warnings are classified in

accordance with the severity of the possible

danger using the following warning signs and

signal words:

Warning symbols and signal words

Danger!

Imminent danger to life or risk of

severe personal injury

Danger!

Risk of death from electric shock

Warning.

Risk of minor personal injury

Caution.

Risk of material or environmental

damage

1.2 Intended use

There is a risk of injury or death to the user or

others, or of damage to the product and other

property in the event of improper use or use

for which it is not intended.

The product is intended as a heat generator

for closed heating installations and for hot

water generation.

Intended use includes the following:

–observance of the operating instructions

included for the product and any other

system components

–compliance with all inspection and main-

tenance conditions listed in the instruc-

tions.

This product can be used by children aged

from 8 years and above and persons with

reduced physical, sensory or mental capabil-

ities or lack of experience and knowledge if

they have been given supervision or instruc-

tion concerning use of the product in a safe

way and understand the hazards involved.

Children must not play with the product.

Cleaning and user maintenance work must

not be carried out by children unless they are

supervised.

Any other use that is not specified in these

instructions, or use beyond that specified in

this document shall be considered improper

use. Any direct commercial or industrial use

is also deemed to be improper.

Caution.

Improper use of any kind is prohibited.

1.3 General safety information

1.3.1 Installation by competent persons

only

The installation, inspection, maintenance

and repair of the product, as well as the gas

ratio settings, must only be carried out by a

competent person.

1.3.2 Danger caused by improper

operation

Improper operation may present a danger to

you and others, and cause material damage.

▶Carefully read the enclosed instructions

and all other applicable documents, par-

ticularly the "Safety" section and the warn-

ings.

▶Only carry out the activities for which in-

structions are provided in these operating

instructions.

1.3.3 Risk of death from escaping gas

What to do if you smell gas in the building:

▶Avoid rooms that smell of gas.

▶If possible, open doors and windows fully

and ensure adequate ventilation.

▶Do not use naked flames (e.g. lighters,

matches).

▶Do not smoke.

▶Do not use any electrical switches, mains

plugs, doorbells, telephones or other com-

munication systems in the building.

▶If it is safe to do so, close the emergency

control valve or the main isolator.

▶If possible, close the gas isolator cock on

the product.

▶Warn other occupants in the building by

yelling or banging on doors or walls.

▶Leave the building immediately and ensure

that others do not enter the building.

▶Notify the gas supply company or the Na-

tional Grid +44 (0) 800 111999 by tele-

phone once you are outside of the build-

ing.

1 Safety

4Operating instructions ecoTEC plus 0020245033_00

1.3.4 Risk of death due to a blocked or

leaking flue gas pipe

What to do if you smell flue gas in the prop-

erty:

▶Open all accessible doors and windows

fully to provide ventilation.

▶Switch off the product.

▶Inform a competent person.

1.3.5 Risk of death due to explosive and

flammable materials

▶Do not use or store explosive or flammable

materials (e.g. petrol, paper, paint) in the

installation room of the product.

1.3.6 Risk of death due to changes to the

product or the product environment

▶Never remove, bridge or block the safety

devices.

▶Do not tamper with any of the safety

devices.

▶Do not damage or remove any seals on

components.

▶Do not make any changes:

–The product itself

–to the gas, air, water and electricity sup-

plies

–to the entire flue gas installation

–to the entire condensate drain system

–to the expansion relief valve

–to the drain pipework

–to constructional conditions that may

affect the operational reliability of the

product

1.3.7 Risk of poisoning caused by

insufficient supply of combustion

air

Conditions: Open-flued operation

▶Ensure that there is a sufficient supply of

combustion air.

1.3.8 Risk of corrosion damage due to

unsuitable combustion and room air

Sprays, solvents, chlorinated cleaning

agents, paint, adhesives, ammonia com-

pounds, dust or similar substances may lead

to corrosion on the product and in the air/flue

pipe.

▶Ensure that the supply of combustion air is

always free of fluorine, chlorine, sulphur,

dust, etc.

▶Ensure that no chemical substances are

stored at the installation site.

1.3.9 Risk of material damage caused by

frost

▶Ensure that the heating installation always

remains in operation during freezing con-

ditions and that all rooms are sufficiently

heated.

▶If you cannot ensure the operation, have a

competent person drain the heating install-

ation.

1.3.10 Risk of injury and material damage

due to maintenance and repairs

carried out incorrectly or not

carried out at all

▶Never attempt to carry out maintenance

work or repairs on your product yourself.

▶Faults and damage should be immediately

rectified by a competent person.

▶Adhere to the maintenance intervals spe-

cified.

Notes on the documentation 2

0020245033_00 ecoTEC plus Operating instructions 5

2 Notes on the documentation

2.1 Observing other applicable documents

▶You must observe all operating instructions enclosed with

the system components.

2.2 Storing documents

▶Keep this manual and all other applicable documents

safe for future use.

2.3 Applicability of the instructions

These instructions apply only to:

Product article number

Article num-

ber

Gas Council

Number

VU 126/5-5 (H-GB)

ecoTEC plus 612

0010021828 41-694-20

VU 156/5-5 (H-GB)

ecoTEC plus 615

0010021829 41-694-21

VU 186/5-5 (H-GB)

ecoTEC plus 618

0010021830 41-694-22

VU 186/5-5 (P-GB)

ecoTEC plus 618

0010021831 41-694-23

VU 246/5-5 (H-GB)

ecoTEC plus 624

0010021832 41-694-24

VU 306/5-5 (H-GB)

ecoTEC plus 630

0010021833 41-694-25

VU 306/5-5 (P-GB)

ecoTEC plus 630

0010021834 41-694-26

VU 386/5-5 (H-GB)

ecoTEC plus 637

0010021835 41-694-27

VUW 196/5-5 (H-GB)

ecoTEC plus 825

0010021823 47-044-83

VUW 246/5-5 (H-GB)

ecoTEC plus 832

0010021824 47-044-84

VUW 246/5-5 (P-GB)

ecoTEC plus 832

0010021825 47-044-85

VUW 286/5-5 (H-GB)

ecoTEC plus 838

0010021826 47-044-86

VUW 306/5-5 (H-GB)

ecoTEC plus 835

0010021822 47-044-82

VUI 286/5-5 (H-GB)

ecoTEC plus 938

0010021827 47-044-87

3 Product description

3.1 Product design

1 Control elements

2 Plate with serial number

on the rear

3 Front flap

3.2 Control elements

1234

1 On/off button

2 Built-in controller (ac-

cessory)

3 Fault clearance button

4 Operating buttons

5 Display

3 Product description

6Operating instructions ecoTEC plus 0020245033_00

3.2.1 Operator control panel

F. 0 1 1

1 Current heating flow

temperature, filling

pressure of the heating

installation, operating

mode, fault code or

additional information

2 Current assignment of

the right-hand selection

button

3 Left- and right-hand

selection buttons

4and button

5 Maximum output op-

eration (for chimney

sweeps only)

6 Access to the menu for

additional information

7 Current assignment of

the left-hand selection

button

8 Active operating status

3.3 Displayed symbols

Symbol Meaning Explanation

Burner operating cor-

rectly

Burner on

bar

Current filling pressure of

the heating system

The dashed lines show

the permitted range

–Permanently on:

Filling pressure in

the permitted range

–Flashing: Filling

pressure outside

the permitted range

Hot water generation

active

–Permanently on:

Draw-off mode be-

fore burner is on

–Flashing: Burner on

in draw-off mode

Heating mode active –Permanently on:

Heating mode heat

requirement

–Flashing: Burner on

in heating mode

Symbol Meaning Explanation

Comfort mode active –Permanently on:

Comfort mode active

–Flashing: Comfort

mode active, burner

Maintenance required Information on the main-

tenance message in the

"Live Monitor"

Summer mode active

Heating mode is

switched off

Burner anti-cycling time

is active

To avoid the need for

frequent switching on

and off (increases the

product's working life).

F. X X

Fault in the product Appears instead of the

basic display, may be

an explanatory plain text

display.

3.4 Information on the identification plate

The identification plate is mounted on the underside of the

product in the factory.

Information on the

identification plate

Meaning

Read the instructions.

VU… Vaillant gas-fired wall-hung boiler for

heating

VUW…, VUI… Vaillant gas-fired wall-hung boiler for

heating and hot water generation

..6/5-5 Calorific value power/product generation

equipment

ecoTEC plus Product designation

2H, G20 –20 mbar

(2.0 kPa)

Gas group and gas connection pressure

as set at the factory

ww/yyyy Date of manufacture: Week/year

Cat. Approved gas boiler category

Types Approved units of type

PMS Permissible total overpressure in heating

mode

PMW Permissible total overpressure during hot

water generation

Tmax. Max. flow temperature

ED 92/42 Current efficiency directive fulfilled with

4* rating

V Hz Mains voltage and mains frequency

W Max. electrical power consumption

IP Level of protection

Heating mode

Hot water generation

P Nominal heat output range

Q Heat input range

D Nominal hot water draw-off rate

Bar code with serial number,

7th to 16th digit = product article number

Operation 4

0020245033_00 ecoTEC plus Operating instructions 7

3.5 Serial number

The serial number is located on a plastic plate behind the

front flap.

3.6 CE label

The CE label shows that the products comply with the basic

requirements of the applicable directives as stated on the

identification plate.

The declaration of conformity can be viewed at the manufac-

turer's site.

3.7 Energy Saving Trust Endorsed Products

Only the most energy efficient products can carry the

‘Energy Saving Trust Endorsed Product’ brandmark making

it easy for consumers to choose products that have met strict

energy performance criteria.

Available for: Boilers, Heating controls and chemical inhib-

itors, the Energy Saving Trust endorsed product brandmark

gives consumers confidence that a product will cost less to

run, help lower energy bills and reduce carbon emissions.

About the Energy Saving Trust

Energy Saving Trust is an independent and impartial organ-

isation that provides trusted energy saving advice to em-

power millions of people to lead affordable, low energy life-

styles. For more information visit energysavingtrust.org.uk

3.8 Hot Water Association

Vaillant is a full member of the Hot Water Association and

promotes the scheme in association with its cylinder range.

Details are available on the web site www.vaillant.co.uk

3.9 Benchmark

Vaillant is a licensed member of the Benchmark Scheme

which aims to improve the standards of installation and com-

missioning of domestic heating and hot water systems in the

UK and to encourage regular servicing to optimise safety, ef-

ficiency and performance.

Benchmark is managed and promoted by the Heating

and Hotwater Industry Council. For more information visit

www.benchmark.org.uk.

▶Please ensure that the installer has fully completed the

Benchmark Checklist on the inside back pages of the

installation instructions supplied with the product and

that you have signed it to say that you have received a

full and clear explanation of its operation. The installer is

legally required to complete a commissioning checklist

as a means of complying with the appropriate Building

Regulations (England and Wales).

All installations must be notified to Local Area Building Con-

trol either directly or through a Competent Persons Scheme.

A Building Regulations Compliance Certificate will then be

issued to the customer who should, on receipt, write the No-

tification Number on the Benchmark Checklist.

This product should be serviced regularly to optimise its

safety, efficiency and performance. The service engineer

should complete the relevant Service Record on the Bench-

mark Checklist after each service.

The Benchmark Checklist will be required in the event of any

warranty.

4 Operation

4.1 Operating concept

Operator

control

element

Function

–Setting the hot water temperature

–Cancelling the activation of an operating

mode

–Cancelling a change to a set value

–Going one selection level higher

–Setting the heating flow temperature

–Reading the system pressure

–Activating the comfort mode

–Activating the operating mode

–Confirm setting

–Going one selection level lower

+ at

the same

time

–Calling up the menu

or –Reducing or increasing the set value

–Scrolling through menu entries

The current function of the and buttons is shown on

the display.

Adjustable values are always displayed as flashing.

You must always confirm a change to a value. Only then

is the new setting saved. You can press to cancel an

operation at any time.

4 Operation

8Operating instructions ecoTEC plus 0020245033_00

4.2 Basic display

The basic display shows the current condition of the product.

If you press a selection button, the activated function is dis-

played in the display.

The functions that are available depend on whether a con-

troller is connected to the product.

You can switch back to the basic display by:

–Pressing to exit the selection levels

–Not pressing any button for longer than 15 minutes.

If there is an error message present, the basic displays

switches to the error message.

4.3 Menu display

Xxxx

Xxxxxxxxxxx

Xxxx Xxxxxxx

Xxxxxxxxxx

xxxxxx Xxxxxxx

1 Scroll bar

2 Current assignment of

the and buttons.

3 Selection level list

entries

4 Name of the selection

level

You can find an overview of the menu structure in the ap-

pendix.

Operator level –overview (→Page 13)

4.4 Adjustment and display levels

The product has two adjustment and display levels.

The end user level contains information and setting options

that you require as the end user.

The installer level is reserved for the competent person. It is

protected by a code. Only competent persons may change

any settings in the installer level.

Operator level –overview (→Page 13)

4.5 Cabinet-type casing

Enclosing the product in cabinet-type casing requires compli-

ance with the applicable design instructions.

If you require cabinet-type casing for your product, consult

a heating specialist company. Never, under any circum-

stances, enclose the product yourself.

4.6 Opening the isolator devices

1. Ask the competent person who installed the product to

explain to you where these isolator devices are located

and how to handle them.

2. Open the gas isolator cock fully.

3. Open the service valves in the heating installation's flow

and return.

Conditions: Product with integrated hot water generation or connected

domestic hot water cylinder

▶Open the cold water stop valve.

4.7 Starting up the product

▶Only start up the product once the casing has been com-

pletely closed.

4.8 Switching on the product

▶Press the on/off button (1).

◁The "Basic display" (→Page 8) (2) appears on the

display.

4.9 Setting the language

1. Press and hold and at the same time.

2. Also briefly press .

3. Press and hold and until the display shows the

language setting.

4. Select the required language by pressing or .

5. Confirm by pressing .

6. Once you have set the correct language, press

again to confirm this.

Operation 4

0020245033_00 ecoTEC plus Operating instructions 9

4.10 Setting the heating flow temperature

1. Press ( ).

◁The target value of the heating flow temperature

appears on the display.

Note

The competent person may have adjusted

the maximum possible temperature.

Conditions: No controller connected

▶Use or to set the required heating flow temperat-

ure.

▶Confirm by pressing .

Conditions: Controller connected

▶Set the maximum possible heating flow temperature on

the product.

▶Confirm by pressing .

▶Set the required heating flow temperature on the control-

ler (→Controller operating instructions).

4.11 Setting the hot water temperature

Warning.

Risk of being scalded by hot water.

To protect against Legionella, the hot wa-

ter can be heated up to above 60 °C at pre-

defined times.

▶Have a competent person inform you

about the measures that should be taken

to protect against Legionella in your sys-

tem.

1. Press ( ).

◁The set hot water temperature flashes in the display.

Conditions: No controller connected

▶Change the hot water temperature by pressing or

▶Confirm by pressing .

Conditions: Controller connected

▶Use to set the maximum possible hot water temper-

ature on the product.

▶Confirm by pressing .

▶Set the required hot water temperature on the controller

(→Controller operating instructions).

4.12 Switching Comfort mode on and off

Note

Comfort mode immediately supplies hot water at

the required temperature, without you having to

wait for the water to heat up.

1. Press ( ).

2. Press ( ).

◁Comfort on or Comfort off are shown flashing in

the display.

3. Activate or deactivate Comfort mode by pressing or

respectively.

4. Press to confirm this change.

◁When you have activated Comfort mode, the " "

symbol appears on the basic display. When you

have deactivated Comfort mode, the " " symbol

goes out on the basic display.

4.13 Activating the shift-load cylinder

Applicability: Product with integrated hot water generation and shift-load

cylinder

To activate an actoSTOR shift-load cylinder which is also

connected, you must switch on cylinder charging on your

product.

▶To do this, activate Comfort mode (Comfort mode

(→Page 9)).

◁The symbol " " appears in the display.

▶Set the hot water temperature.

Conditions: Cylinder charging switched on

–Hot water temperature: 50 … 65 ℃

Danger!

Risk of scalding!

The products are equipped with an automatic

anti-legionella function: If the temperature in

the shift-load cylinder falls below 50 °C for

24 hours, the cylinder is heated up to 70 °C

once.

▶Please note when drawing water that it

can be very hot.

▶If you want to switch off the "Anti-legionella function", you

should ask a competent person.

▶If you want to switch off cylinder charging, deactivate

Comfort mode "Switching Comfort mode on and off

(→Page 9)".

Conditions: Cylinder charging switched off

–Hot water temperature: 35 … 65 ℃

◁The cylinder is not maintained at a specific temperat-

ure. If you draw off the water, the product switches on

and, in this case, only operates as an instantaneous

water heater.

4 Operation

10 Operating instructions ecoTEC plus 0020245033_00

4.14 Setting the target cylinder temperature

Applicability: Product with integrated hot water generation and shift-load

cylinder

Conditions: Water hardness: > 3.57 mol/m³

▶Have a competent person take appropriate measures to

protect against Legionella.

▶Set the target cylinder temperature to a maximum of 50

°C.

4.15 Switching off the product's functions

4.15.1 Switching off heating mode (Summer

mode)

1. To switch off heating mode without switching off hot

water generation, press ( ).

◁The value of the heating flow temperature appears

in the display.

2. Use the button to set the heating flow temperature to

Heating off.

3. Confirm by pressing .

◁Heating mode is switched off.

◁The symbol appears on the display.

4.15.2 Switching off hot water generation

Applicability: Product with hot water generation through external domestic

hot water cylinder

1. To switch off cylinder charging without switching off

heating mode, press ( ).

◁The set hot water temperature flashes in the display.

2. Use the button to set the hot water temperature to

Heating off.

3. Confirm by pressing .

◁Cylinder charging is switched off.

◁Only the frost protection function for the cylinder

remains active.

4.16 Guaranteeing the correct filling pressure of

the heating system

4.16.1 Checking the filling pressure of the heating

installation

Note

To ensure that the heating installation operates

smoothly, the filling pressure when the heating

installation is cold must be between 0.1 MPa and

0.2 MPa (1.0 bar and 2.0 bar) or lie between the

two dashed lines in the bar graph display.

If the heating installation extends over several

storeys, a higher filling pressure may be required

for the heating installation. Ask a competent per-

son for details.

In addition, the symbol appears after approx.

one minute.

If the filling pressure in the heating installation

falls below 0.05 MPa (0.5 bar), then the product

switches off. The display alternates between the

fault message F.22 and the current filling pres-

sure.

1. Press twice.

◁The values for the current filling pressure and for the

minimum and maximum filling pressures appear in

the display.

2. Check the filling pressure in the display.

1 / 2

System pressure: 0.1 … 0.2 MPa (1.0 … 2.0 bar)

The filling pressure is in the intended pressure range.

2 / 2

Filling pressure: < 0.08 MPa (< 0.80 bar)

▶Fill the heating installation. (→Page 10)

◁If you have topped up the installation with suf-

ficient heating water, the display automatically

disappears after 20 seconds.

4.16.2 Filling the heating installation

Caution.

Risk of material damage due to heating

water that is extremely calciferous or cor-

rosive or contaminated by chemicals.

Unsuitable tap water damages the seals

and diaphragms, blocks components in the

product and heating installation through

which the water flows and causes noise.

▶Only fill the heating installation with suit-

able heating water.

1. Ask a competent person where the filling cock is loc-

ated.

2. Connect the filling tap to a heating water supply in the

way you were told by the competent person.

3. Open all radiator valves (thermostatic radiator valves) of

the heating installation.

4. Open the heating water supply.

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