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Vaillant ecoFIT pure combi User Guide
Operating instructions
For the operator
Operating instructions
ecoFIT pure
825 - 835
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
Contents
1
1.1
1.2
1.3
2
2.1
Safety ............................................ 3
Action-related warnings ................. 3
Intended use .................................. 3
General safety information............. 4
Notes on the documentation ...... 7
Observing other applicable
documents ..................................... 7
2.2 Storing documents......................... 7
2.3 Validity of the instructions .............. 7
3
Product description..................... 7
3.1 Front view ...................................... 7
3.2 Control elements............................ 7
3.3 Displayed symbols......................... 8
3.4 Information on the identification
plate ............................................... 8
3.5 Serial number ................................ 9
3.6 CE label ......................................... 9
3.7 Benchmark..................................... 9
4
Operation.................................... 10
4.1 Operating concept ....................... 10
4.2 Basic display................................ 10
4.3 Adjustment and display levels ..... 10
4.4 Cabinet-type casing ..................... 11
4.5 Opening the isolator devices ....... 11
4.6 Starting up the product ................ 11
4.7 Switching on the product ............. 11
4.8 Setting the heating flow
temperature ................................. 11
4.9 Setting the hot water
temperature ................................. 11
4.10 Switching Comfort mode on and
off................................................. 12
4.11 Switching off the product's
functions ...................................... 12
2
4.12 Guaranteeing the correct
filling pressure of the heating
system ......................................... 12
4.13 Protecting the heating
installation against frost ............... 13
4.14 Switching the product to
standby mode .............................. 14
5
Troubleshooting ........................ 14
5.1 Detecting and rectifying faults...... 14
5.2 Calling up (Live monitor) status
codes ........................................... 14
6
Care and maintenance .............. 14
6.1 Maintenance ................................ 14
6.2 Caring for the product .................. 14
6.3 Reading maintenance
messages .................................... 14
6.4 Checking the condensate drain
pipework and tundish................... 14
7
Decommissioning...................... 15
7.1 Temporarily decommissioning
the product................................... 15
7.2 Permanently decommissioning
the product................................... 15
8
Recycling and disposal............. 15
9
Guarantee and customer
service ........................................ 15
9.1 Guarantee.................................... 15
9.2 Customer service......................... 15
Appendix ............................................... 16
A
Status codes – Overview........... 16
B
Troubleshooting ........................ 16
Operating instructions ecoFIT pure 0020230532_02
Safety 1
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 heat-
ing 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 maintenance 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.
0020230532_02 ecoFIT pure Operating instructions
3
1 Safety
1.3 General safety
▶ Do not use any electrical
information
switches, mains plugs, doorbells, telephones or other
1.3.1 Installation by
communication systems in
competent persons only
the building.
The installation, inspection,
▶ If it is safe to do so, close the
maintenance and repair of the
emergency control valve or
product, as well as the gas ratio
the main isolator.
settings, must only be carried
▶
If possible, close the gas isolout by a competent person.
ator cock on the product.
1.3.2 Danger caused by
▶ Warn other occupants in the
improper operation
building by yelling or banging
on doors or walls.
Improper operation may present
▶
Leave the building immedia danger to you and others, and
ately and ensure that others
cause material damage.
do not enter the building.
▶ Carefully read the enclosed
instructions and all other ap- ▶ Notify the gas supply company or the National Grid
plicable documents, particu+44 (0) 800 111999 by telelarly the "Safety" section and
phone once you are outside
the warnings.
of the building.
▶ Only carry out the activities
for which instructions are
1.3.4 Risk of death due to a
provided in these operating
blocked or leaking flue
instructions.
gas pipe
What to do if you smell flue gas
1.3.3 Risk of death from
in the property:
escaping gas
▶ Open all accessible doors
What to do if you smell gas in
and windows fully to provide
the building:
ventilation.
▶ Avoid rooms that smell of
▶ Switch off the product.
gas.
▶ Inform a competent person.
▶ If possible, open doors and
windows fully and ensure
adequate ventilation.
▶ Do not use naked flames (e.g.
lighters, matches).
▶ Do not smoke.
4
Operating instructions ecoFIT pure 0020230532_02
Safety 1
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.
1.3.7 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
1.3.6 Risk of death due
lead to corrosion on the product
to changes to the
and in the air/flue pipe.
product or the product
▶ Ensure that the supply of
environment
combustion air is always free
▶ Never remove, bridge or
of fluorine, chlorine, sulphur,
block the safety devices.
dust, etc.
▶ Do not tamper with any of the ▶ Ensure that no chemical subsafety devices.
stances are stored at the in▶ Do not damage or remove
stallation site.
any seals on components.
1.3.8 Risk of material damage
▶ Do not make any changes:
caused by frost
– The product itself
– to the gas, air, water and
▶ Ensure that the heating inelectricity supplies
stallation always remains in
– to the entire flue gas installoperation during freezing conation
ditions and that all rooms are
– to the entire condensate
sufficiently heated.
drain system
▶ If you cannot ensure the op– to the expansion relief valve
eration, have a competent
– to the drain pipework
person drain the heating installation.
– to constructional conditions that may affect the
operational reliability of the
product
0020230532_02 ecoFIT pure Operating instructions
5
1 Safety
1.3.9 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 specified.
6
Operating instructions ecoFIT pure 0020230532_02
Notes on the documentation 2
2 Notes on the
documentation
2.1
▶
Control elements
3
Observing other applicable
documents
50
You must observe all operating instructions enclosed with the system components.
2.2
▶
3.2
Storing documents
2
Keep this manual and all other applicable documents safe for future use.
2.3
1
1
Fault clearance
key
2
3
Validity of the instructions
Operating buttons
Display
3.2.1 Operator control panel
These instructions apply only to:
Product article number
Article
number
VUW 256/6-3
(H-GB)
VUW 306/6-3
(H-GB)
VUW 356/6-3
(H-GB)
Gas Council Number
0010020389 47-044-68
1
0010020390 47-044-74
9
0010020391 47-044-70
8
2
3
7
3 Product description
3.1
50
4
Front view
6
1
5
2
1
1
Control elements
2
Plate with serial
number on the
rear
2
0020230532_02 ecoFIT pure Operating instructions
Current heating
flow temperature, operating
mode, fault code
or additional information
Current assignment of the righthand selection
button
3
4
5
Left- and righthand selection
buttons
and
button
Fault clearance
key
7
3 Product description
6
Maximum output (only used
for Austria,
Germany and
Switzerland)
Access to the
menu for additional information
7
3.3
Symbol
bar
8
9
Symbol
Meaning
Summer mode
active
Heating mode is
switched off
Burner anti-cycling time is active
Displayed symbols
Meaning
Explanation
Burner operating
correctly
Current filling
pressure of the
heating system
The dashed lines
show the permitted range
Burner on
Hot water generation active
Heating mode
active
Comfort mode
active
Maintenance required
8
Current assignment of the lefthand selection
button
Active operating
status
– Permanently
on: Filling
pressure in
the permitted
range
– Flashing:
Filling pressure outside
the permitted
range
– Permanently
on: Draw-off
mode before
burner is on
– Flashing:
Burner on in
draw-off mode
– Permanently
on: Heating
mode heat
requirement
– Flashing:
Burner on in
heating mode
– Permanently
on: Comfort
mode active
– Flashing:
Comfort mode
active, burner
on
Information on
the maintenance
message in the
"Live Monitor"
F.XX
3.4
Fault in the
product
Explanation
To avoid the
need for frequent
switching on and
off (increases the
product's working
life).
Appears instead
of the basic
display, may be
an explanatory
plain text display.
Information on the
identification plate
The identification plate is mounted on the
underside of the product in the factory.
The identification plate keeps record of
the country in which the product is to be
installed.
Information
on the identification plate
Meaning
Barcode with serial number
Serial number
ecoFIT pure
2H, G20
– 2 kPa
(20 mbar)
Cat.
For quality control purposes;
3rd and 4th digits = year of
production
For quality control purposes;
5th and 6th digits = week of
production
For identification purposes;
7th to 16th digits = product
article number
For quality control purposes;
17th to 20th digits = place of
manufacture
Product designation
Factory setting for type of
gas and gas connection
pressure
Unit category
Operating instructions ecoFIT pure 0020230532_02
Product description 3
Information
on the identification plate
Meaning
Condensing
technology
Efficiency class of the boiler
in accordance with EC Directive 92/42/EEC
Permissible flue gas connections
Maximum water pressure in
heating mode
Maximum water pressure in
hot water handling mode
Electrical connection
Max. electrical power consumption
Level of protection
Heating mode
Type: Xx3(x)
PMS
PMW
V/Hz
W
IP
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 manufacturer's site.
3.7
Benchmark
Hot water generation
Pn
Pnc
P
Qn
Qnw
Tmax.
NOx
Code (DSN)
Nominal heat output range
in heating mode
Nominal heat output range
in heating mode (condensing
technology)
Nominal heat output range
in hot water handling mode
Nominal heating load range
in heating mode
Nominal heating load range
in hot water handling mode
Max. flow temperature
NOx class for the product
Specific product code
Vaillant is a licensed member of the
Benchmark Scheme which aims to improve the standards of installation and
commissioning of domestic heating and
hot water systems in the UK and to encourage regular servicing to optimise
safety, efficiency and performance.
Benchmark is managed and promoted
by the Heating and Hotwater Industry
Council. For more information visit
www.benchmark.org.uk.
▶
Read the instructions.
GC no.
3.5
Gas council number
Serial number
The serial number is located on a plastic
plate at the bottom of the front casing.
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 Control either directly or
through a Competent Persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer
0020230532_02 ecoFIT pure Operating instructions
9
4 Operation
who should, on receipt, write the Notification 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 Benchmark Checklist after each service.
The Benchmark Checklist will be required
in the event of any warranty.
Operating concept
Operator
control
element
+
at the
same
time
or
4.2
to cancel a procedure at
Basic display
50
The basic display shows the current condition of the product. If you press a selection
button, the activated function is displayed
in the display.
The functions that are available depend
on whether a controller is connected to the
product.
You can switch back to the basic display
by:
4 Operation
4.1
You can press
any time.
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
– Calling up the menu
– 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
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.
– Reducing or increasing the set
value
– Scrolling through menu entries
The current function of the and buttons is shown in 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.
10
Operating instructions ecoFIT pure 0020230532_02
Operation 4
4.4
Cabinet-type casing
Enclosing the product in cabinet-type casing requires compliance with the applicable design instructions.
If you require cabinet-type casing for your
product, consult a heating specialist company. Never, under any circumstances,
enclose the product yourself.
4.5
Conditions: Controller connected
▶
▶
▶
Set the maximum possible heating flow
temperature on the product.
Confirm by pressing .
Set the required heating flow temperature on the controller (→ Controller operating instructions).
4.9
Setting the hot water
temperature
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.
Warning.
Risk of being scalded by hot
water.
To protect against Legionella,
the hot water can be heated up
to above 60 °C at pre-defined
times.
4. Open the cold water stop valve.
4.6
▶
Only start up the product once the casing has been completely closed.
4.7
▶
Switching on the product
Switch on the product via the main
switch installed on-site.
4.8
◁
( ).
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
▶
1. Press
◁
Setting the heating flow
temperature
1. Press
▶
▶
Starting up the product
Have a competent person
inform you about the measures that should be taken to
protect against Legionella in
your system.
(
).
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 or to set the required heating
flow temperature.
Confirm by pressing .
0020230532_02 ecoFIT pure Operating instructions
Use to set the maximum possible hot
water temperature on the product.
Confirm by pressing .
Set the required hot water temperature
on the controller (→ Controller operating
instructions).
11
4 Operation
4.10 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
◁
(
(
4.12 Guaranteeing the correct
filling pressure of the heating
system
4.12.1 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
0.10 MPa and 0.20 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 person 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 pressure.
).
).
Comf. on or Comf. off are shown
flashing in the display.
3. Activate or deactivate Comfort mode
by pressing or .
4. Press to confirm this change.
◁
When you have activated Comfort
mode, the symbol appears in the
basic display. When you have deactivated Comfort mode, the " " symbol goes out in the basic display.
4.11 Switching off the product's
functions
4.11.1 Switching off heating mode
(Summer mode)
1. To switch off heating mode without
switching off the 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 Off.
3. Confirm by pressing .
◁
◁
Heating mode is switched off.
The symbol appears in the
display.
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: 0.10 … 0.20 MPa
(1.00 … 2.00 bar)
The filling pressure is in the intended
pressure range.
2/2
Filling pressure: < 0.08 MPa
(< 0.80 bar)
12
Operating instructions ecoFIT pure 0020230532_02
Operation 4
▶
Fill the heating installation.
(→ Page 13)
◁
If you have topped up the installation with sufficient heating water, the display automatically disappears after 20 seconds.
4.13 Protecting the heating
installation against frost
4.13.1 Frost protection function
Caution.
Risk of material damage due
to frost.
The frost protection function
cannot guarantee flow through
the entire heating installation,
which means that parts of the
heating installation may freeze
and therefore become damaged.
4.12.2 Filling the heating installation
Caution.
Risk of material damage due
to heating water that is extremely calciferous or corrosive 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 suitable heating
water.
1. Ask a competent person where the
filling cock is located.
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.
5. Turn the filling cock on slowly and allow water to flow in until the required
filling pressure has been reached.
6. Close the heating water supply.
7. Purge all radiators.
8. Check the filling pressure in the
display.
9. Top up with more water if necessary.
10. Close the filling cock.
11. Return to the basic display.
(→ Page 10)
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.
Note
To keep the frost protection
devices active, you should switch
your product on and off using the
controller, if one is provided.
If the heating flow temperature falls below 5 °C when the on/off button is on, the
product comes into operation and heats
the circulating water to approx. 30 °C on
both the heating side and the hot water
side (if available).
4.13.2 Draining the heating
installation
When the unit is switched off for an extended period, frost protection can be guaranteed by completely draining the heating
installation and the product.
▶ Consult a competent person about this.
0020230532_02 ecoFIT pure Operating instructions
13
5 Troubleshooting
4.14 Switching the product to
standby mode
▶
6.2
◁
◁
◁
The display shows OFF and goes
out.
The product is now in standby mode.
The product's frost protection function is activated.
The main power supply is not interrupted. The product continues to be
supplied with power.
5 Troubleshooting
5.1
▶
▶
Calling up (Live monitor)
status codes
Press and at the same time.
Status codes – Overview (→ Page 16)
◁
The current operating status (status
code) is shown on the display.
▶
▶
Do not use sprays, scouring
agents, detergents, solvents
or cleaning agents that contain chlorine.
Clean the casing with a damp cloth and
a little solvent-free soap.
6.3
Detecting and rectifying faults
If faults occur, proceed in accordance
with the table in the appendix.
Troubleshooting (→ Page 16)
If the fault cannot be eliminated using
the specified measures or if fault messages (F.xx) occur, contact a competent person.
5.2
▶
Caution.
Risk of material damage
caused by unsuitable cleaning agents.
Press the fault clearance key for less
than three seconds.
◁
Caring for the product
Reading maintenance
messages
If the symbol is shown in the display, the
product requires maintenance work.
The product is not in fault mode but continues to operate.
▶ Consult a competent person about this.
▶ If the water pressure is flashing at the
same time, simply add more heating
water.
6.4
Checking the condensate
drain pipework and tundish
The condensate drain pipework and tundish must always be penetrable.
▶ Regularly check the condensate drain
pipework and tundish for faults and,
particularly, for blockages.
6 Care and maintenance
You must not be able to see or feel any
obstructions in the condensate drain pipe6.1 Maintenance
work and tundish.
An annual inspection of the product carried ▶ If you notice a fault, have it rectified by
out by a competent person is a prerequisa competent person.
ite for ensuring that the product is permanently ready and safe for operation, reliable,
and has a long working life.
14
Operating instructions ecoFIT pure 0020230532_02
Decommissioning 7
7 Decommissioning
▶
7.1
▶
Temporarily decommissioning
the product
Caution.
Risk of material damage due
to frost.
The frost protection and monitoring devices are only active
while the unit is connected to
the power mains and switched
on via the on/off button, and
when the gas isolator cock is
open.
▶
▶
▶
Temporarily decommission the product
only if no frost is expected.
Switch off the product via the main
switch installed on-site.
◁
▶
The display goes out.
When decommissioning the product
for a prolonged period (e.g. holiday),
close the gas isolator cock and also, for
combination products, the cold water
stop valve.
7.2
▶
Temporarily decommission
the product only if no frost is
expected.
In this case, do not dispose of the
product with the household waste.
Instead, hand in the product to a collection centre for old electrical or electronic
appliances.
If the product contains batteries that
are marked with this symbol, these batteries may contain substances that are
hazardous to human health and the environment.
▶ In this case, dispose of the batteries at
a collection point for batteries.
9 Guarantee and customer
service
9.1
Guarantee
For information on the manufacturer's
guarantee, you can write to the contact
address that is provided on the back page.
9.2
Customer service
To ensure regular servicing, it is strongly
recommended that arrangements are
made for a Maintenance Agreement.
Please contact Vaillant Service Solutions
for further details:
Telephone: 0330 100 3461
Permanently
decommissioning the product
Have a competent person permanently
decommission the product.
8 Recycling and disposal
▶
The competent person who installed
your product is responsible for the disposal of the packaging.
If the product is identified with this
symbol:
0020230532_02 ecoFIT pure Operating instructions
15
Appendix
Appendix
A Status codes – Overview
Status codes that are not listed here can be viewed in the installation instructions.
Status
code
Parameter
Meaning
Displays in heating mode
S.00
Heating: No heat demand
S.02
Heating mode: Pump pre-run
S.03
Heating mode: Ignition
S.04
Heating mode: Burner on
S.06
Heating mode: Fan overrun
S.07
Heating mode: Pump overrun
S.08
Heating mode: Anti-cycling time
Displays in hot water handling mode
S.10
DHW demand
S.14
DHW mode: Burner on
Displays in Comfort mode with warm start or hot water
S.20
DHW demand
S.22
DHW mode: Pump pre-run
S.24
DHW mode: Burner on
Others
S.31
No heat demand: Summer mode
S.34
Heating mode: Frost protection
S.46
Waiting time: Measuring program
Heating: No heat demand
Heating mode: Pump pre-run
Heating mode: Ignition
Heating mode: Burner on
Heating mode: Fan overrun
Heating mode: Pump overrun
Heating, remaining anti-cycling time xx
mins
Hot water requirement via flow sensor
DHW mode: Burner on
handling mode with cylinder
Hot water requirement
DHW mode: Pump pre-run
DHW mode: Burner on
Summer mode active
Frost protection mode, frost protection
Comfort protection mode, flame loss at
minimum load
B Troubleshooting
Fault
Cause
Product does not
start up:
The gas isolator cock installed on-site
and/or the gas isolator cock on the
product is closed.
The power supply in the building is disconnected.
– No hot water
– Heating remains cold
Measure
The product is switched off.
The heating flow temperature is set
too low or to the Heating off position,
and/or the hot water temperature is set
too low.
16
Open both gas isolator cocks.
Check the fuse in the building.
The product switches on automatically when the power is restored.
Switch on the product (→ "Switching on the product" section).
Set the heating flow temperature and hot water temperature (→
"Setting the heating flow temperature" section/→ "Setting the hot
water temperature" section).
Operating instructions ecoFIT pure 0020230532_02
Appendix
Fault
Product does not
start up:
– No hot water
– Heating remains cold
Cause
The system pressure is insufficient.
Low water pressure in the heating installation (fault message: F.22).
There is air in the heating installation.
After three unsuccessful attempts to
ignite the flame, the product switches to
fault mode (fault message: F.28).
Hot water gener- The external controller is not set coration functioning rectly.
correctly; heating
does not start up.
0020230532_02 ecoFIT pure Operating instructions
Measure
Fill the heating installation (→
"Filling the heating installation"
section).
Have your competent person
purge the heating installation.
Press the fault clearance key for
one second. The product makes
another attempt to ignite the
flame.
If you have been unable to eliminate the ignition fault after three
fault clearance attempts, consult a
competent person.
Set the external controller correctly (→ Controller operating instructions).
17
0020230532_02
0020230532_02
28.10.2016
supplier
Vaillant Ltd.
Nottingham Road
Belper
Derbyshire
Telephone 0330 100 3461
info@vaillant.co.uk
www.vaillant.co.uk
DE56 1JT
© These instructions, or parts thereof, are protected by copyright and may be
reproduced or distributed only with the manufacturer's written consent.
We reserve the right to make technical changes.
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