Vaillant EcoVIT exclusiv VKK 226/4-H Bedienungsanleitung

Operating instructions

ecoVIT exclusiv

VKK 226/4 –VKK 656/4

AT, DE

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 ecoVIT exclusiv 0020258609_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 Validity of the instructions...................................... 5

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

3.1 Design of the product............................................. 5

3.2 Opening the front flap ............................................ 5

3.3 Control elements.................................................... 5

3.4 Frost protection function ........................................ 7

3.5 Type designation and serial number ..................... 7

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

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

4.1 Adjustment and display levels ............................... 7

4.2 Starting up the product .......................................... 7

4.3 Setting the language.............................................. 8

4.4 Setting the heating flow temperature .................... 8

4.5 Setting the cylinder temperature............................ 9

4.6 Switching off the functions..................................... 9

4.7 Status code meanings ......................................... 10

5 Care and maintenance ...................................... 10

5.1 Caring for the product.......................................... 10

5.2 Maintenance ........................................................ 10

5.3 Guaranteeing the correct filling pressure of the

heating installation............................................... 10

5.4 Checking the condensate discharge pipe and

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

5.5 Carrying out the flue gas analysis ....................... 11

6 Troubleshooting ................................................ 12

6.1 Eliminating faults.................................................. 12

6.2 Checking the product status ................................ 12

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

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

7.2 Permanently decommissioning the product......... 13

8 Recycling and disposal..................................... 13

9 Guarantee and customer service..................... 13

9.1 Guarantee............................................................ 13

9.2 Customer service................................................. 13

Appendix ............................................................................ 14

A Status codes ...................................................... 14

B Troubleshooting ................................................ 14

Safety 1

0020258609_00 ecoVIT exclusiv 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 products are gas-fired floor-standing

condensing boilers and are intended for use

in this function as heat generators for closed

domestic hot water central heating installa-

tions and for central domestic hot water gen-

eration.

Intended use includes the following:

–observance of the operating instructions

included for the product and any other

installation 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 skilled tradesmen

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.

▶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.

1 Safety

4Operating instructions ecoVIT exclusiv 0020258609_00

▶Alert the police and fire brigade as soon as

you are outside the building.

▶Use a telephone outside the building to

inform the emergency service department

of the gas supply company.

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 the product in storage rooms

that contain explosive or flammable sub-

stances (such as petrol, paper or paint).

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.

1.3.11 Risk of structural damage caused

by escaping water

Escaping water can cause damage to the

building.

▶If there is a possibility of leaks in the pipe-

work, close the service valves immedi-

ately.

▶Have any leaks eliminated by your heating

specialist company.

Notes on the documentation 2

0020258609_00 ecoVIT exclusiv 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 Validity of the instructions

These instructions apply only to:

Product article number

VKK 226/4-H 0010007508

VKK 226/4-L 0010007688

VKK 286/4-H 0010007512

VKK 286/4-L 0010007692

VKK 366/4-H 0010007516

VKK 366/4-L 0010007696

VKK 476/4-H 0010007520

VKK 476/4-L 0010007700

VKK 656/4-H 0010007524

VKK 656/4-L 0010007704

3 Product description

3.1 Design of the product

1 Panel

2 Control elements

3 Front flap

3.2 Opening the front flap

▶Take hold of the recessed handle in the front flap and lift

the panel up slightly.

◁The front flap automatically swivels downwards and

the control panel becomes accessible.

3.3 Control elements

1 Display 2 ibutton

3 Product description

6Operating instructions ecoVIT exclusiv 0020258609_00

3 Control (accessory)

4 Main switch

5+button

6−button

7Reset button

8 Heating flow temperat-

ure rotary knob

9 Cylinder temperature

rotary knob

The display shows the current heating flow temperature, the

filling pressure of the heating installation, the operating mode

or certain additional information.

The ibutton is used to call up status information.

The control, which is available as an accessory, automatic-

ally controls the flow temperature depending on the outdoor

temperature.

The main switch is used to switch the product on and off.

The +button is used to display the cylinder temperature (if

the product is equipped with a cylinder temperature sensor).

The −button is used to display the filling pressure of the

heating installation.

The Reset button is used to reset the product in the case of

certain faults.

The heating flow temperature rotary knob is used to set the

heating flow temperature if no control is connected. If a con-

trol is connected, the heating flow temperature rotary knob

should be turned clockwise as far as it will go.

The cylinder temperature rotary knob is used to set the cyl-

inder temperature if a domestic hot water cylinder is connec-

ted.

If a control is connected, the rotary knob should be turned

clockwise as far as it will go. The control then determines the

cylinder temperature.

3.3.1 Digital Information and Analysis System

(DIA)

1 Display showing the

current heating flow

temperature, the filling

pressure in the heating

installation, or a status

or fault code

2 Plain text display

3.3.2 Displayed symbols

Symbol Meaning Explanation

Fault in the air/flue gas

route

Fault in the air/flue gas

route

Symbol Meaning Explanation

comDIALOG The heating flow and do-

mestic hot water temper-

ature are specified via

the comDIALOG com-

munications system. The

product works at temper-

atures other than those

set at the rotary knob.

This operating mode can

only be terminated by:

–comDIALOG

–Changing the tem-

perature at the rotary

knobs by more than

±5 K

This operating mode

cannot be terminated by:

–Pressing the Reset

button.

–Switching the

product off and on

again

Heating mode –Symbol perman-

ently on: Product is

in heating mode op-

erating mode

–Symbol flashing:

Burner anti-cycling

time is active

Hot water generation –Symbol permanently

visible: Charging

mode for the do-

mestic hot water

cylinder is enabled

by the control and

floor-standing boiler

control system

–Symbol flashes:

Domestic hot water

cylinder is being

heated

Heating pump operating

Solenoid valve is actu-

ated

Gas supply to the burner

is open

Current energy demand Display of the current

burner modulation rate

(bar graph display)

Fault during burner

operation

Burner is switched off

Burner operating cor-

rectly

Burner is switched on

Operation 4

0020258609_00 ecoVIT exclusiv Operating instructions 7

3.4 Frost protection function

The product is equipped with a frost protection function.

If the heating flow temperature falls below 5 °C when the

main switch is on, the product starts up and heats the cir-

culating water to approx. 30 °C.

Caution.

Risk of material damage due to frost.

The frost protection function cannot guaran-

tee flow through the entire heating installa-

tion, which means that parts of the heating

installation may freeze and therefore become

damaged.

▶During a period of frost, ensure that the

heating installation remains in operation

and that all rooms are sufficiently heated,

even when you are away.

▶Consult a competent person about this.

3.5 Type designation and serial number

The type designation and the serial number are located on a

sticker below the control panel behind the front flap.

The data plate can only be seen by the competent person.

▶Open the front flap. (→Page 5)

▶Read off the type designation and the serial number from

the sticker.

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.

4 Operation

4.1 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.

4.2 Starting up the product

4.2.1 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 stopcock fully.

3. Check that the heating installation flow and return

service valves are open, if such service valves are

installed.

4. If a domestic hot water cylinder is connected, open the

cold-water isolation valve. To check, you can turn on a

hot water tap and see whether water is escaping there.

4.2.2 Switching on the product

1 Main switch 2 Display

1. Use the main switch (1) to switch on the product.

◁1: "ON"

◁When the main switch is in position 1, the product is

switched on and the standard display for the Digital

Information and Analysis System is shown in the

display. The function menu is immediately shown

in the display once the product has been switched

on. The function menu enables competent persons

to control how the individual actuators work. The

product returns to normal operating mode after a

waiting period of approximately five seconds or if the

−button is pressed.

2. Set up your product according to your needs.

4 Operation

8Operating instructions ecoVIT exclusiv 0020258609_00

4.2.3 Switching off the product

1 Main switch 2 Display

▶Use the main switch (1) to switch off the product.

◁0: "OFF"

Note

In order for the protection modes, such as

frost protection, to remain activated, only ac-

tivate and deactivate the product using the

control (you can find information about this in

the relevant operating instructions). If no con-

trol is present, block the heating and cylinder

charging mode by turning the dial to the anti-

clockwise end stop.

4.3 Setting the language

▶Contact your competent person so that they can set the

correct language for the control panel.

4.4 Setting the heating flow temperature

Conditions: Control connected

1 Main switch 2 Heating flow temperat-

ure rotary knob

▶Turn the rotary knob for the heating flow temperature (2)

as far as it will go clockwise.

◁The heating flow temperature is automatically set by

the control.

Note

To ensure that the control can set temper-

atures up to the maximum heating flow

temperature, the rotary knob for the heating

flow temperature should always be set to the

clockwise end stop.

Conditions: No control connected

1 Heating flow temperat-

ure rotary knob

2 Displaying the current

heating flow temperat-

ure

▶Set the target flow temperature on the rotary knob for

the heating flow temperature (1) in accordance with the

outdoor temperature.

Position Meaning Outdoor temperat-

ure

Fully left Frost protection

Anti-clockwise (but

not at the end stop) Transition Time Approx.

10 … 20 ℃

Centre Moderate cold Approx.

0 … 10 ℃

Clockwise Extreme cold Below

0℃

◁After turning the rotary knob for the heating flow tem-

perature, the display shows the set target flow tem-

perature (2). After three seconds, this display goes

out and the default display reappears (current heat-

ing flow temperature).

Note

The maximum heating flow temperature is set

in the factory at 75 °C. This can be defined by

the competent person to be between 40 °C

and 85 °C.

Operation 4

0020258609_00 ecoVIT exclusiv Operating instructions 9

4.5 Setting the cylinder temperature

Conditions: Control connected

1 Display 2 Cylinder temperature

rotary knob

▶Set the rotary knob for the cylinder temperature (2) as

far as it will go clockwise so that the control can work

without any faults occurring.

▶Do not set the required cylinder temperature on the

rotary knob for the cylinder temperature; set the cylinder

temperature on the control instead.

Conditions: No control connected

1 Display 2 Cylinder temperature

rotary knob

▶Set the rotary knob for the cylinder temperature (2) to

the required cylinder temperature.

Position of the rotary knob for setting the cylinder tem-

perature (→Page 9)

◁The required temperature is shown in the display

(1). After three seconds, this display goes out and

the default display reappears (current heating flow

temperature).

Note

The maximum cylinder temperature is set in

the factory at 65 °C. This can be defined by

the competent person to be between 50 °C

and 70 °C.

Note

If a cylinder temperature lower than 60 °C is

required, we recommend that you regularly

use the anti-legionella function via the control.

Position Meaning Temperature

Fully left Minimum cylinder

temperature = frost

protection

15 ℃

Centre Medium cylinder

temperature

≈50 ℃

Fully right Maximum cylinder

temperature

65 ℃

4.6 Switching off the functions

4.6.1 Switching off heating mode

Note

You can completely switch off heating mode in

summer without switching off the hot water gener-

ation.

1 Rotary knob for setting

the heating flow temper-

ature

▶To switch off heating mode, turn the rotary knob for set-

ting the heating flow temperature (1) as far as it will go

anti-clockwise. If the product is controlled by a control,

use this control to switch off heating mode and leave the

rotary knob at the clockwise end stop.

Note

The product's internal frost protection is there-

fore guaranteed whether there is a control or

not.

4.6.2 Switching off cylinder charging mode

(using the VRC 630/VRS 620 control)

1. Leave the rotary knob for the cylinder temperature at

the clockwise end stop.

2. Switch the cylinder circuit to "OFF" on the control.

Note

If the VRC 450 or VRC 700 control is avail-

able, switch cylinder charging mode off in

accordance with the section "Switching off

cylinder charging mode (without a control)

(→Page 10)".

5 Care and maintenance

10 Operating instructions ecoVIT exclusiv 0020258609_00

4.6.3 Switching off cylinder charging mode

(without control)

▶Turn the rotary knob for the cylinder temperature to the

anti-clockwise end stop.

◁Cylinder charging mode is switched off.

◁The frost protection function is activated for the do-

mestic hot water cylinder.

◁The display shows the target cylinder temperature of

15 °C for three seconds.

–15 ℃

Note

The effect of the frost protection function is

that, at cylinder temperatures below 10 °C, the

domestic hot water generation is switched on

until the water in the cylinder has reached 15

°C again.

4.7 Status code meanings

The status codes that are shown in the DIA system's display

provide information about the product's current operating

status.

If several operating statuses occur at the same time, the

applicable status codes are displayed alternately, one after

the other. The status code is explained a plain text display in

the display.

Status codes (→Page 14)

5 Care and maintenance

5.1 Caring for the product

Caution.

Risk of material damage caused by un-

suitable cleaning agents.

▶Do not use sprays, scouring agents, de-

tergents, solvents or cleaning agents that

contain chlorine.

▶Clean the casing with a damp cloth and a little solvent-

free soap.

5.2 Maintenance

An annual inspection and biennial maintenance of the

product carried out by a competent person is a prerequisite

for ensuring that the product is permanently ready and safe

for operation, reliable, and has a long working life. The

inspection may require maintenance to be carried out earlier,

depending on the results.

5.3 Guaranteeing the correct filling pressure of

the heating installation

5.3.1 Checking the system pressure

1−button

▶Check the heating installation's filling pressure at regular

intervals. Briefly press the −button.

◁The display will show the filling pressure for approx-

imately 5 seconds.

◁The filling pressure must be between 0.1 MPa and

0.2 MPa (1.0 and 2.0 bar) when the heating installa-

tion is cold in order for the heating installation to op-

erate properly. If the pressure is lower, you must add

heating water before starting up.

Note

You can permanently switch between the tem-

perature or pressure display in the display by

pressing and holding the –button for approx-

imately five seconds.

Note

To avoid operating the heating installation with

an insufficient water volume and to prevent

potential subsequent damage, the product

is fitted with a pressure sensor. The pres-

sure sensor signals the low pressure level if

the level falls below 0.06 MPa (0.6 bar). This

is signalled by the system pressure value in

the display flashing. If the level falls below

0.03 MPa (0.3 bar), the system displays the

fault message and F.22 alternately, and the

burner is blocked. If the system pressure is

lower than 0.06 MPa (0.6 bar), fill the heat-

ing installation up again as quickly as pos-

sible. As soon as the system pressure ex-

ceeds 0.06 MPa (0.6 bar), the product starts

up without any further measures being re-

quired.

If the pressure sensor is defective, the

product enters comfort protection mode. The

maximum possible flow temperature and the

power are limited. The status S.40 and F.22

(water deficiency) are displayed alternately.

Note

If the heating installation extends over several

floors, a higher system pressure for the heat-

ing installation may be necessary. Ask your

competent person for details.

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