VKK 226/4-L
Vaillant VKK 226/4-L, VKK 226/4-H, VKK 476/4-H, VKK 286/4-L, VKK 366/4-H Operating Instructions Manual
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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
info@vaillant.de www.vaillant.de
Contents
2 Operating 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 installations and for central domestic hot water generation.
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 instructions.
This product can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction 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, particularly the "Safety" section and the warnings.
▶ 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 communication 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
4 Operating 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 property:
▶ 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 substances (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 compounds, 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 conditions and that all rooms are sufficiently
heated.
▶ If you cannot ensure the operation, have a
competent person drain the heating installation.
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 immediately.
▶ 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
3
2
1
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
9
8
7
6
5
2
3
4
1 Display 2 i button
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