Vaillant ecoTEC exclusive 627, ecoTEC exclusive 835, ecoTEC exclusive 843 Operating Instructions Manual
Operating instructions
ecoTEC exclusive
627 (VU 256/5‑7 (H-GB))
835 (VUW 356/5‑7 (H-GB))
843 (VUW 436/5‑7 (H-GB))
GB, IE
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 ecoTEC exclusive 0020193967_01
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 Product design....................................................... 5
3.2 Control elements.................................................... 5
3.3 Operator control panel........................................... 5
3.4 Displayed symbols................................................. 6
3.5 Information on the identification plate.................... 6
3.6 Serial number ........................................................ 6
3.7 CE label ................................................................. 6
3.8 Energy Saving Trust Endorsed Products .............. 6
4 Operation.............................................................. 7
4.1 Operating concept ................................................. 7
4.2 Basic display.......................................................... 7
4.3 Menu display.......................................................... 7
4.4 Operating levels..................................................... 7
4.5 Cabinet-type casing............................................... 7
4.6 Opening the isolator devices ................................. 7
4.7 Starting up the product .......................................... 7
4.8 Switching on the product ....................................... 8
4.9 Setting the language.............................................. 8
4.10 Setting the domestic hot water temperature .......... 8
4.11 Switching Comfort mode on and off ...................... 8
4.12 Setting the heating flow temperature ..................... 8
4.13 Switching Green iQ mode on and off .................... 8
4.14 Guaranteeing the correct filling pressure of the
heating installation................................................. 9
4.15 Switching off the product's functions ................... 10
4.16 Protecting the heating installation against
frost...................................................................... 10
5 Detecting and rectifying faults ......................... 10
6 Calling up (Live monitor) status codes ........... 10
7 Care and maintenance ...................................... 10
7.1 Maintenance ........................................................ 10
7.2 Caring for the product .......................................... 10
7.3 Reading maintenance messages ........................ 11
7.4 Checking the condensate drain pipework and
tundish ................................................................. 11
8 Decommissioning.............................................. 11
8.1 Temporarily decommissioning the product.......... 11
8.2 Permanently decommissioning the product......... 11
9 Recycling and disposal..................................... 11
10 Guarantee and customer service..................... 11
10.1 Guarantee............................................................ 11
10.2 Customer service................................................. 11
Appendix ............................................................................12
A Operator level – overview ................................. 12
B Troubleshooting ................................................ 12
C Status codes – Overview .................................. 13
Safety 1
0020193967_01 ecoTEC exclusive 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 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 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, 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.
▶ 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 telephone once you are outside of the building.
1 Safety
4 Operating instructions ecoTEC exclusive 0020193967_01
1.3.4 Risk of death due to blocked or
leaking flue pipework
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 combustion air supply
Conditions: Open-flued operation
▶ Ensure that there is a sufficient combus-
tion air supply.
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.
Notes on the documentation 2
0020193967_01 ecoTEC exclusive 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
Article number
Gas Council
Number
627 (VU 256/5‑7 (H-GB))
ecoTEC exclusive
0010017063 41-694-02
835 (VUW 356/5‑7 (HGB)) ecoTEC exclusive
0010017064 47-044-66
843 (VUW 436/5‑7 (HGB)) ecoTEC exclusive
0010017065 47-044-67
3 Product description
3.1 Product design
1
2
3
1 Control elements
2 Plate with serial number
on the rear
3 Front flap
3.2 Control elements
50
5
4 3 2 1
1 On/off button
2 Built-in controller (ac-
cessory)
3
Reset button
4 Operating buttons
5 Display
3.3 Operator control panel
50
1
8
7
6
5
2
3
4
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
4
and 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
The display lights up
– if you switch on the product or
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