Vaillant | ecoFIT pure regular | User guide | Vaillant ecoFIT pure regular Installation Manual

Vaillant ecoFIT pure regular Installation Manual
Installation and maintenance instructions
ecoFIT pure
412 - 435
GB, IE
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40
Tel. +492191 18 0
info@vaillant.de
D-42859 Remscheid
Fax +492191 18 2810
www.vaillant.de
Contents
Contents
7.8
Checking and adjusting the gas settings ............. 18
7.9
Checking leak-tightness ...................................... 19
1
Safety .................................................................... 3
7.10
Checking the heating mode ................................. 19
1.1
Action-related warnings ......................................... 3
8
1.2
Intended use .......................................................... 3
Adapting the unit to the heating
installation.......................................................... 19
1.3
General safety information .................................... 3
8.1
Burner anti-cycling time ....................................... 19
1.4
Regulations (directives, laws, standards) .............. 5
9
Handing the product over to the end user ...... 20
2
Notes on the documentation .............................. 6
10
Troubleshooting ................................................ 20
2.1
Observing other applicable documents ................. 6
10.1
Eliminating faults.................................................. 20
2.2
Storing documents................................................. 6
10.2
Procuring spare parts .......................................... 20
2.3
Validity of the instructions ...................................... 6
10.3
Calling up and clearing the fault memory ............ 20
Product description............................................. 6
10.4
Resetting parameters to factory settings ............. 20
3.1
Benchmark............................................................. 6
10.5
Preparing the repair work .................................... 21
3.2
Compartment Ventilation ....................................... 6
10.6
Replacing defective components......................... 21
3.3
Information on the identification plate.................... 6
10.7
Checking the product for leak-tightness .............. 22
3.4
CE label ................................................................. 7
11
Inspection and maintenance ............................ 22
3.5
Functional elements............................................... 7
11.1
Using original seals.............................................. 22
4
Set-up.................................................................... 7
11.2
4.1
Transporting the unit.............................................. 7
Observing inspection and maintenance
intervals ............................................................... 22
4.2
Unpacking the product........................................... 7
11.3
Checking the CO₂ content ................................... 22
4.3
Checking the scope of delivery.............................. 7
11.4
Setting the CO₂ content ....................................... 23
4.4
Dimensions ............................................................ 8
11.5
Removing the gas-air mixture unit....................... 23
4.5
Minimum clearances.............................................. 8
11.6
Cleaning the heat exchanger............................... 24
4.6
Using the mounting template ................................. 8
11.7
Checking the burner ............................................ 24
4.7
Wall-mounting the product..................................... 8
11.8
Checking the ignition electrode ........................... 24
4.8
Removing/installing the front casing...................... 9
11.9
Cleaning the condensate trap.............................. 24
4.9
Removing/installing the side section ..................... 9
11.10
Installing the gas-air mixture unit ......................... 25
5
Installation............................................................ 9
11.11
Completing inspection and maintenance work .... 25
5.1
Preparing for installation ........................................ 9
11.12
Checking the product for leak-tightness .............. 25
5.2
Installing the heating pump.................................. 10
12
Decommissioning the product ......................... 25
5.3
Heating water supply in the open heating
system ................................................................. 11
13
Recycling and disposal..................................... 25
14
Customer service............................................... 25
3
5.4
Connecting the heating flow and heating
return ................................................................... 11
Appendix ............................................................................ 26
A
Inspection and maintenance work ................... 26
5.5
Gas connection.................................................... 11
B
Overview of diagnostics codes ........................ 27
5.6
Connecting the condensate discharge pipe ........ 11
C
Status codes – Overview .................................. 30
5.7
Flue installation.................................................... 13
D
Overview of fault codes .................................... 31
5.8
Electrical installation ............................................ 13
E
Wiring diagram................................................... 33
6
Operation............................................................ 15
F
Wiring diagram, 30 kW ...................................... 34
6.1
Operating concept ............................................... 15
G
Position of the opening in the air/flue pipe ..... 35
6.2
Installer level overview......................................... 15
G.1
6.3
Calling up the installer level ................................. 15
Positioning of the opening of a fan-supported
flue gas pipe ........................................................ 35
6.4
Live Monitor (status codes) ................................. 15
G.2
Horizontal terminal positioning ............................ 36
6.5
Using check programmes .................................... 16
H
Commissioning Checklist................................. 37
Start-up ............................................................... 16
I
Technical data.................................................... 41
7.1
Carrying out the initial start-up............................. 16
Index ................................................................................... 45
7.2
Checking the factory setting ................................ 16
7.3
Checking and treating the heating water/filling
and supplementary water .................................... 16
7.4
Filling the condensate trap .................................. 17
7.5
Switching on the product ..................................... 18
7.6
Filling the heating installation .............................. 18
7.7
Checking the gas flow rate .................................. 18
7
2
Installation and maintenance instructions ecoFIT pure 0020230535_05
Safety 1
1
1.1
Safety
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
1.2
– compliance with all inspection and maintenance conditions listed in the instructions.
Intended use also covers installation in accordance with the IP code.
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 use in industrial or commercial
processes is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.3
General safety information
Warning.
Risk of minor personal injury
1.3.1 Risk caused by inadequate
qualifications
Caution.
Risk of material or environmental
damage
The following work must only be carried out
by competent persons who are sufficiently
qualified to do so:
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.
Depending on the unit type, the products
referred to in these instructions must only be
installed and operated in conjunction with the
air/flue pipe accessories listed in the other
applicable documents.
The use of the product in vehicles, such as
mobile homes and caravans, is not classed
as intended use. Units that are not classed
as vehicles are those that are installed in
a fixed and permanent location (known as
"fixed installation").
Intended use includes the following:
– observance of accompanying operating,
installation and servicing instructions for
the product and any other system components
– installing and fitting the product in accordance with the product and system approval
0020230535_05 ecoFIT pure Installation and maintenance instructions
–
–
–
–
–
–
–
Set-up
Dismantling
Installation
Start-up
Inspection and maintenance
Repair
Decommissioning
▶ Proceed in accordance with current technology.
1.3.2 Risk of injury due to the heavy weight
of the product
▶ Make sure that the product is transported
by at least two people.
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.
3
1 Safety
▶ 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 National Grid +44 (0) 800 111999 by telephone once you are outside of the building.
1.3.4 Risk of death from escaping flue gas
If you operate the product with an empty condensate trap / siphon, then flue gas may escape into the room air.
Before commencing work on the product:
▶ Disconnect the product from the power
supply by switching off all power supplies
at all poles (electrical partition with a contact gap of at least 3 mm, e.g. fuse or circuit breaker).
▶ Secure against being switched back on
again.
▶ Wait for at least 3 minutes until the capacitors have discharged.
▶ Check that there is no voltage.
1.3.9 Risk of death due to lack of safety
devices
The schematic drawings included in this doc▶ In order to operate the product, ensure that ument do not show all safety devices rethe condensate trap / siphon is always full. quired for correct installation.
1.3.5 Risk of death due to blocked or
leaking flue gas routes
Installation errors, damage, tampering, unauthorised installation sites or similar can cause
flue gas to escape and result in a risk of poisoning.
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.
▶ Check the flue gas routes in the product
and the flue gas diversions.
▶ Install the necessary safety devices in the
system.
▶ Observe the applicable national and international laws, standards and guidelines.
1.3.10 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 flue
system.
1.3.6 Risk of poisoning and burns caused
by escaping hot flue gases
▶ 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.
▶ Only operate the product if the air/flue pipe
has been completely installed.
▶ With the exception of short periods for
testing purposes, only operate the product
when the front casing is installed and
closed.
▶ If you are installing the product in
hairdressing salons, painter's or joiner's
workshops, cleaning businesses or similar
locations, choose a separate installation
room in which the room air is technically
free of chemical substances.
1.3.7 Risk of death due to explosive and
flammable materials
1.3.11 Risk of material damage caused by
frost
▶ Do not use the product in storage rooms
that contain explosive or flammable substances (such as petrol, paper or paint).
▶ Do not install the product in rooms prone
to frost.
1.3.8 Risk of death from electric shock
1.3.12 Risk of being burned or scalded by
hot components
There is a risk of death from electric shock if
you touch live components.
▶ Only carry out work on these components
once they have cooled down.
4
Installation and maintenance instructions ecoFIT pure 0020230535_05
Safety 1
1.3.13 Risk of material damage caused by
using an unsuitable tool
▶ Use the correct tool.
1.4
Regulations (directives, laws,
standards)
▶ Observe the national regulations, standards, directives, ordinances and laws.
0020230535_05 ecoFIT pure Installation and maintenance instructions
5
2 Notes on the documentation
2
2.1
▶
2.2
▶
2.3
Notes on the documentation
Observing other applicable documents
You must observe all the operating and installation instructions included with the system components.
Storing documents
Pass these instructions and all other applicable documents on to the system operator.
The boilers are very high efficiency appliances.
As a consequence the heat loss from the appliance casing
during operation is very low.
Compartment ventilation is not required as the products are
only certified, and can only be fitted with a concentric flue
system.
3.3
Information on the identification plate
The identification plate keeps record of the country in which
the product is to be installed.
Product article number
Article number
Gas Council
Number
VU 126/6-3 OV (H-GB)
ecoFIT pure 412
0010020400
41-694-08
VU 156/6-3 OV (H-GB)
ecoFIT pure 415
0010020401
41-694-09
VU 186/6-3 OV (H-GB)
ecoFIT pure 418
0010020402
41-694-10
VU 256/6-3 OV (H-GB)
ecoFIT pure 425
0010020403
41-694-11
VU 306/6-3 OV (H-GB)
ecoFIT pure 430
0010020404
41-694-12
VU 356/6-3 OV (H-GB)
ecoFIT pure 435
0010020405
41-694-19
3.1
Compartment Ventilation
The identification plate is mounted on the underside of the
product in the factory.
Validity of the instructions
These instructions apply only to:
3
3.2
Information on the
identification plate
Barcode with serial number
Serial number
Product description
Benchmark
Vaillant is a licensed member of the Benchmark Scheme.
Benchmark places responsibilities on both manufacturers
and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the
manufacturer’s instructions by a competent person approved
at the time by the Health and Safety Executive and that it
meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be
provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark
Code of Practice which is available from the Heating and
Hotwater Industry Council who manage and promote the
Scheme.
Benchmark is managed and promoted by the Heating and
Hotwater Industry Council.
Meaning
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
ecoFIT pure
Product designation
2H, G20 – 2 kPa
(20 mbar)
Factory setting for type of gas and gas
connection pressure
Cat.
Unit category
Condensing technology
Efficiency class of the boiler in accordance with EC Directive 92/42/EEC
Type: Xx3(x)
Permissible flue gas connections
PMS
Maximum water pressure in heating
mode
PMW
Maximum water pressure in hot water
handling mode
V/Hz
Electrical connection
W
Max. electrical power consumption
IP
Level of protection
Heating mode
Pn
Nominal heat output range in heating
mode
Pnc
Nominal heat output range in heating
mode (condensing technology)
P
Nominal heat output range in hot water
handling mode
Qn
Nominal heating load range in heating
mode
Qnw
Nominal heating load range in hot water
handling mode
Tmax.
Max. flow temperature
NOx
NOx class for the product
Code (DSN)
Specific product code
Read the instructions.
GC no.
Gas council number
For more information visit www.centralheating.co.uk
6
Installation and maintenance instructions ecoFIT pure 0020230535_05
Set-up 4
3.4
4
CE label
Set-up
4.1
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
Important: With regard to the regulations of 1992 concerning the manual handling of loads, the unit exceeds the
weight that can be lifted by a single person.
4.1.1
The declaration of conformity can be viewed at the manufacturer's site.
▶
3.5
▶
Functional elements
▶
1
2
Transporting the unit
▶
Hold the load as close as possible to your body. Avoid
rotational movements. Instead, reposition your feet.
If the unit is being lifted by two persons, ensure your
movements are coordinated during lifting.
Avoid bending your upper body – do not lean forwards or
to the side.
Wear suitable non-slip protective gloves in order to protect your hands against sharp edges. Ensure that you are
carrying the load securely.
If required, get somebody to assist you in this.
3
▶
4
4.1.2
5
6
7
8
▶
▶
▶
▶
▶
9
▶
10
4.2
11
1.
2.
Unpacking the product
Remove the product from its box.
Remove the protective film from all of the product's
components.
Checking the scope of delivery
Check that the scope of delivery is complete and intact.
4.3.1
1
5
3
Supply air test point
(for the upper air/flue
connection)
Flue gas analysis point
(for the upper air/flue
connection)
Fan/gas-air mixture
4
Flue pipe
9
Air intake pipe
10
Condensate trap
11
Electronics box
2
6
Flue gas analysis point
(for the rear air/flue
connection)
Gas valve assembly
7
Ignition transformer
8
Heat exchanger
0020230535_05 ecoFIT pure Installation and maintenance instructions
Unloading the box from the delivery van
It is recommended that two people lift the unit together.
Lift the box using the straps provided.
Use safe lifting techniques – keep your back straight and
bend your legs at the knee.
Hold the load as close as possible to your body.
If the unit is being lifted by two persons, ensure your
movements are coordinated during lifting.
If required, get somebody to assist you in this.
4.3
▶
General
Scope of delivery
Number
Description
1
Heat generator
1
Hanging bracket
1
Flue gas adaptor
1
Gas isolator cock
1
Gas pipe
1
Condensate drain hose
1
Installation template
1
Enclosed documentation
7
4 Set-up
4.4
Dimensions
4.5
Minimum clearances
A
1
320
2
112
C
71
375
33,5
D
3
78
157,5
B
183,5
C
4
100
Minimum clearance
602
5
A
150 mm (top air/flue connection)
75 mm (rear air/flue connection) *
B
150 mm
C
5 mm
(70 mm, if the side sections have to be removed)
D
600 mm
* Dimension A can be reduced to 20 mm if there is a removable
surface above the product.
4.5.1
Clearance from combustible components
4.6
220
▶
150
32,5
It is not necessary to maintain a clearance between the
product and components made of combustible materials that
goes beyond the minimum clearances (→ Page 8).
4.7
Condensate discharge
4
Heating flow
2
Gas connection
5
3
Heating return
Connection on the back
of the air/flue pipe
Connection on the top
of the air/flue pipe
8
6
Use the mounting template to ascertain the locations at
which you need to drill holes.
Wall-mounting the product
Note
If you are using the rear air/flue connection, install the air/flue pipe before you wall-mount the
product.
6
1
Using the mounting template
1.
Only use fixing material that is permitted for the wall.
2.
3.
Check the load-bearing capacity of the wall.
Note the total weight of the product.
Installation and maintenance instructions ecoFIT pure 0020230535_05
Installation 5
4.
5.
6.
Only use fixing material that is permitted for the wall.
If required, ensure that mounting apparatus on-site has
sufficient load-bearing capacity.
Wall-mount the product as described.
4.8
Removing/installing the front casing
4.8.1
Removing the front casing
D
D
E
A
C
B
A
3.
C
1.
2.
3.
4.
Undo the two screws .
Gently press the front casing backwards in the centre
and pull it downwards on the lower edge so that the
retaining clip is released.
Pull the front casing forwards at the bottom edge.
Lift the front casing upwards from the retainers.
4.8.2
▶
Installing the front casing
Refit the components in the reverse order.
4.9
Removing/installing the side section
4.9.1
Removing the side section
Caution.
Risk of material damage caused by mechanical deformation.
Removing both side sections may cause
mechanical distortion in the product, which
may cause damage to the piping, for example, and potentially result in leaks.
▶
1.
2.
Always remove only one side section –
never both side sections at the same time.
Note
If there is sufficient lateral clearance (at least
70 mm), you can remove the side section to facilitate maintenance or repair work.
0020230535_05 ecoFIT pure Installation and maintenance instructions
Tilt the electronics box forward.
Hold on to the side section so that it cannot fall, and
unscrew both screws, one from the top and one from
the bottom.
Tilt the side section to the outside and take it out towards the top.
4.9.2
▶
5
5.1
B
Installing the side section
Refit the components in the reverse order.
Installation
Preparing for installation
Danger!
Risk of scalding and/or damage due to
incorrect installation leading to escaping
water.
Mechanical stresses in the connection pipes
may lead to leaks.
▶
Install the connection pipes such that they
are free from mechanical stress.
Caution.
Risk of material damage caused by corrosion
Due to non-diffusion-tight plastic pipes in the
heating installation, air gets into the heating
water. Air in the heating water causes corrosion in the heat generator circuit and in the
product.
▶
If you use non-diffusion-tight plastic pipes
in the heating installation, ensure that no
air gets into the heat generator circuit.
9
5 Installation
Caution.
Risk of material damage caused by
residues in the pipelines.
Welding remnants, sealing residues, dirt or
other residues in the pipelines may damage
the product.
▶
Flush the heating installation thoroughly
before installing the product.
Caution.
Risk of material damage due to heat transfer during soldering.
▶
Only solder connectors if the connectors
are not yet screwed to the service valves.
1
435
430
2
424
418
415
412
200
400
600
A
Flow rate [l/h]
B
Pressure loss [mbar]
1000 1200 1400 1600 A
800
1
2
Pressure loss – ecoFIT
pure 412 - 418
Pressure loss – ecoFIT
pure 424 - 435
▶
5.2
▶
10
400
350
300
250
200
150
100
50
0
0
The flow rate must not fall below the value in the diagram.
Only bend connection pipes if they have
not yet been connected to the product.
Excess test pressure or operating pressure
may cause damage to the gas valve.
▶
B
Caution.
Risk of material damage caused by
changes to the pipes that have already
been connected.
Caution.
Risk of damage caused by incorrect gas
installation.
▶
Pressure loss
from the product
Check the leak-tightness of the gas valve
using a maximum pressure of 11 kPa
(110 mbar).
▶
▶
▶
▶
▶
▶
Check that the volumetric capacity of the expansion vessel is sufficient for the system volume.
Installing the heating pump
Only use pumps that have an in-rush current ≤ 10/15 A.
When designing/selecting the pump, note the pressure
loss of the product.
Install the pump in the heating flow.
Install the pump upstream and downstream of the pump
isolation valves.
Set the pump so that the temperature difference between
the flow and return is no more than 20 °C when the maximum flow temperature is set.
– The flow rate specified in the technical data is
reached.
Make sure that the existing gas meter is capable of
passing the rate of gas supply required.
Install the following components:
– Drain cocks at the lowest points in the heating installation (→ current version of "BS 2879")
– A heating pump in the heating flow
– A bypass that is at least 1.5 m away from the product
– A stop cock in the gas pipe
– Where applicable, a flow regulator valve to adjust the
flow rate
Installation and maintenance instructions ecoFIT pure 0020230535_05
Installation 5
5.3
Heating water supply in the open heating
system
5.4
Connecting the heating flow and heating
return
2
1
1
Heating return connection
1.
2
Heating flow connection
Establish the heating connections in accordance with
the applicable standards.
Check whether the connections (→ Page 19) are leaktight.
2.
5.5
Gas connection
1
1.
▶
Connect the product to a supply/expansion tank as
shown in the figure.
– The tank must not be more than 27 m (90 ft) above
the product.
– The open vent pipe must be installed with an upward
gradient and must not be blocked.
– Supply line diameter: ≥ 15 mm
– The relative positions of the pump, supply and open
vent pipe must be as shown in the figure.
Establish the gas connection (1) in accordance with the
applicable standards.
Purge the gas line before start-up.
Check the entire gas line properly for leak-tightness.
2.
3.
5.6
Connecting the condensate discharge pipe
Conditions: Combined supply and open vent pipe
▶
Install the line in accordance with "BS 5449".
– Diameter: ≥ 22 mm
1
2
▶
▶
▶
0020230535_05 ecoFIT pure Installation and maintenance instructions
Follow the instructions listed here and observe the legal
and local regulations on condensate discharge.
Use PVC or any other material that is suitable for draining the non-neutralised condensate.
If you cannot guarantee that the materials from which the
drain pipework is made are suitable, install a system for
neutralising the condensate.
11
5 Installation
Note
The condensate drain pipework must have a
continuous fall (45 mm per metre) and should
whenever possible terminate at a suitable
drain point within the heated envelope of the
building that will remain frost free under long
periods of low external temperatures.
▶
▶
▶
▶
▶
Connect the condensate traps (1). Use the supplied drain
hose (2) for this.
Connect a condensate discharge pipe (21.5 mm, not
included in the scope of delivery) to the drain hose (2).
During installation remove all burrs from inside of cut pipe
work and avoid excessive adhesive which may trap small
pockets of water close to the pipe wall which can freeze
and build into a larger ice plug.
For any installation the condensate must be free flowing
and not be possible for air back-pressure to prevent water flow.
As with other pipe work insulate the condensate discharge pipe to minimise any risk of freezing and beware
when crossing cavities that the fall is maintained and the
pipe sleeved.
5.6.1.3 External termination into a gulley or hopper
L = 3m max
Ø19mm
min
Ø30mm
5.6.1.4 Internal termination into combined sink
waste
Ø19mm
min
You can find further information in specification "BS 6798"
for installing and maintaining gas-fired boilers with a nominal
heat input below 70 kW.
5.6.1
Condensate drainage systems
5.6.1.1 Internal soil and vent pipe
Ø30mm
5.6.1.5 Internal termination downstream of sink
waste
Ø19mm
min
Ø19mm
min
5.6.1.2 External soil and vent pipe
Ø30mm
L = 3m max
Ø19mm
min
Ø30mm
12
Installation and maintenance instructions ecoFIT pure 0020230535_05
Installation 5
5.6.1.6 External termination into soakaway
5.8
Electrical installation
Danger!
Risk of death from electric shock!
L = 3m max
500mm min
25mm
min
300mm
min
Ø100mm
400mm min
Continuous voltage is present at power supply terminals L and N even when the unit is
switched off using the standby button.
▶
▶
Ø19mm
min
Ø30mm
5.6.1.7 External termination into rain water down
pipe
Switch off the power supply.
Secure the power supply against being
switched on again.
Only qualified electricians may carry out the electrical installation.
5.8.1
Opening the electronics box
A
Ø19mm
min
B
Ø30mm
5.7
Flue installation
5.7.1
Installing and connecting the flue pipe
1.
2.
You can find out which flue pipes may be used by consulting the enclosed flue pipe installation manual.
Observe the information on positioning the opening
for the flue pipe. This information can be found in the
appendix.
B
▶
Follow the instructions in the specified sequence.
5.8.2
Cable route
Conditions: Installation in damp rooms
▶
You must connect the product to a room-sealed air/flue
gas installation. The combustion air must not be taken
from the installation site.
Caution.
Risk of poisoning due to escaping flue
gas.
1
Mineral-oil-based greases can damage the
seals.
▶
3.
Instead of grease, use only water or commercially available soft soap to aid installation.
2
1
230-V cable route
2
24-V cable or eBUS
cable route
Install the flue pipe using the installation manual.
0020230535_05 ecoFIT pure Installation and maintenance instructions
13
5 Installation
Carrying out the wiring
≤ 30 mm
5.8.3
30 mm max.
1.
2.
3.
Shorten the connection cables to the appropriate
lengths to prevent them from causing damage inside
the electronics box.
L N
RT
X1
230V~
Screw the plug to the connection cable.
Plug the plug into the slot provided on the PCB.
5.8.4
Establishing the power supply
1
Carry out the wiring. (→ Page 14)
Close the electronics box.
Make sure that access to the mains connection is always available and is not covered or blocked.
5.8.5
Connecting controls to the electronics
BUS
- +
BUS
5.
6.
RT
24V =
RT
4.
Observe all valid regulations.
Ensure that the rated mains voltage is 230 V.
Set up a fixed connection and install a partition with a
contact opening of at least 3 mm (e.g. fuses or power
switches).
Provide one common electricity supply for the boiler
and for the corresponding controller:
– Power supply: Single-phase, 230 V, 50 Hz
– Fuse protection: ≤ 3 A
Open the electronics box. (→ Page 13)
Observe the routing of the power supply cable (1) in the
electronics box in order to guarantee that there is no
strain.
Burner
off
B.off
1.
2.
3.
24 V BUS
X106
7.
8.
9.
1
Burner
off
24V=
RT
2
3
–
+
BUS
X2
X22
X41
4
1
2
1.
2.
3.
Safety thermostat for
underfloor heating
24 V control
3
4
eBUS control or radio
receiver unit
Outdoor temperature
sensor, wired
Open the electronics box. (→ Page 13)
Carry out the wiring. (→ Page 14)
Connect the individual components depending on the
installation type.
Conditions: If installing a multi-circuit controller.
▶
14
Change the pump's operating mode d.18 from Eco (intermittently operating pump) to Comfort (continuously
operating pump).
Installation and maintenance instructions ecoFIT pure 0020230535_05
Operation 6
6.2
Conditions: When connecting a control (230 V).
Installer level overview
≤ 30 mm
S.31
L N
▶
▶
RT
Code
X1
230V~
Connect the control to the main plug.
Remove the bridge from the plug 24V=RT.
D.---
Conditions: 230 V 3-wire connection
▶
▶
▶
4.
6
6.1
Connect the boiler only using the set with article number
0020244337 (Installation Kit, 3-wire, Vaillant).
– When connecting, observe the instructions for the
set.
Connect the control to the main plug X1.
– Terminal assignment: L – Phase, N – neutral conductor, – earth
Draw the end user's attention to the fact that the following features are present with this installation type.
◁ The frost protection function is deactivated. If the
product is installed in a room where there is a risk
of frost and it has not been protected by a room thermostat, install an additional frost protection thermostat.
◁ The pump programmes are not active.
◁ If the product is switched off, the display is switched
off.
◁ Each time the unit is started, the fan runs for
20 seconds.
◁ Residual heat in the heating return may result in the
product blocking the burner for 10 minutes.
Close the electronics box.
Operation
Operating concept
PF
P.-D F
--/-DP
6.3
1.
2.
3.
4.
5.
6.
7.
8.
Calling up the installer level
Only call up the installer level if you are a competent
person.
Press
and
("i") at the same time.
◁ S.xx appears in the display (current unit status).
Press
to access the installer level.
◁ Code and -- appear in the display.
Set the value 17 (code) and confirm by pressing
.
Press
to access the check programmes (P) and the
fault codes (F) and to return to the diagnostics codes
(D).
Use
or
to set the required value and confirm by
pressing
.
Confirm by pressing ( ).
Press
to cancel a setting or exit the installer level.
The operating concept and the display and setting facilities
of the operator level are described in the operating instructions.
6.4
An overview of the display and setting options in the installer
level can be found in the section "Overview of the installer
level". (→ Page 15)
Status codes in the display provide information on the product's current operating status.
Live Monitor (status codes)
Menu → Live monitor
Status codes – Overview (→ Page 30)
0020230535_05 ecoFIT pure Installation and maintenance instructions
15
7 Start-up
6.5
Using check programmes
Call up the installer level + 1 x
Display
Meaning
P.00
Purging check programme:
The internal pump is cyclically actuated.
The heating circuit and the hot water circuit are
purged via the automatic air vent (the cap of the
automatic air vent must be released).
1x
3x
(
): Start domestic hot water circuit
→ ): Restart heating circuit purging
1x
(Cancel): End purge programme
Note
The purge programme runs for 7.5 min per circuit
and then terminates.
Purging the heating circuit:
Prioritising diverter valve in heating position, actuation of internal pump for 9 cycles: 30 sec. on,
20 sec. off. Display: Active heating circuit.
Purging the hot water circuit:
After the above-mentioned cycles have run or the
right-hand selection button has been pressed again:
Prioritising diverter valve in the domestic hot water
position, actuation of the internal pump as above.
Display: Active hot water circuit.
P.02
P.06
7
7.1
Maximum load check programme:
After successful ignition, the product is operated at
maximum heat input.
Minimum load check programme:
After successful ignition, the product is operated at
minimum heat input.
Filling mode check programme:
The prioritising diverter valve is moved to the midposition. The burner and pump are switched off (to
fill or drain the product).
Start-up
Carrying out the initial start-up
Initial start-up must be carried out by a customer service
technician or an authorised competent person using the firstcommissioning-checklist. The first-commissioning-checklist
in the appendix (→ Page 37) of the installation instructions
must be filled out and stored carefully along with the unit's
documentation.
▶
▶
Carry out the initial start-up using the first-commissioning-checklist in the appendix.
Fill out and sign the first-commissioning-checklist.
Checking the factory setting
The product's combustion has been factory tested and is
preset for operation with the gas group indicated on the identification plate.
The product is only authorised to be operated with natural
gas.
▶
: Start heating circuit purging
2x
( →
purging
P.01
7.2
Check the information about the type of gas indicated on
the identification plate and compare this with the type of
gas available at the installation location.
Conditions: The product design is not compatible with the local gas
group
▶
Do not start up the product.
Conditions: The product design is compatible with the local gas group
▶
7.3
Proceed as described below.
Checking and treating the heating
water/filling and supplementary water
Caution.
Risk of material damage due to poor-quality heating water
▶
▶
Ensure that the heating water is of sufficient quality.
Before filling or topping up the installation, check the
quality of the heating water.
Checking the quality of the heating water
▶
▶
▶
▶
▶
▶
▶
▶
Remove a little water from the heating circuit.
Check the appearance of the heating water.
If you ascertain that it contains sedimentary materials,
you must desludge the installation.
Use a magnetic rod to check whether it contains magnetite (iron oxide).
If you ascertain that it contains magnetite, clean the installation and apply suitable corrosion-protection measures, or fit a magnetic filter.
Check the pH value of the removed water at 25 °C.
If the value is below 6.5 or above 8.5, clean the system
and treat the heating water.
Ensure that oxygen cannot get into the heating water.
Checking the filling and supplementary water
▶
Before filling the installation, measure the hardness of the
filling and supplementary water.
Treating the filling and supplementary water
▶
Observe all applicable national regulations and technical
standards when treating the filling and supplementary
water.
Provided the national regulations and technical standards
do not stipulate more stringent requirements, the following
applies:
You must treat the heating water in the following cases:
–
–
16
If the entire filling and supplementary water quantity during the operating life of the system exceeds three times
the nominal volume of the heating installation, or
If the guideline values listed in the following table are not
met, or
Installation and maintenance instructions ecoFIT pure 0020230535_05
Start-up 7
–
if the pH value of the heating water is less than 6.5 or
more than 8.5.
1)
Total
heating
output
Water hardness at specific system volume
> 20 l/kW
≤ 50 l/kW
≤ 20 l/kW
mol/
m³
ppm
CaCO₃
mol/
m³
> 50 l/kW
–
–
–
Fernox F2
Sentinel X 100
Sentinel X 200
Additives for frost protection intended to remain
permanently in the installation
0.02
–
–
–
Adey MC ZERO
Fernox Antifreeze Alphi 11
Sentinel X 500
0.02
▶
2
0.02
▶
If you have used the above-mentioned additives, inform
the end user about the measures that are required.
Inform the end user about the measures required for frost
protection.
2
0.02
kW
ppm
CaCO₃
ppm
CaCO₃
< 50
< 300
<3
200
2
2
> 50
to ≤ 200
200
2
150
1.5
2
> 200
to ≤ 600
150
1.5
2
0.02
> 600
2
0.02
2
0.02
mol/
m³
1) Nominal capacity in litres/heating output; in the case of multiboiler systems, the smallest single heating output is to be used.
7.4
Filling the condensate trap
Caution.
The use of unsuitable heating water may
cause aluminium corrosion and a resulting lack of leak-tightness.
2
In contrast to steel, grey cast iron or copper,
for example, aluminium reacts with alkaline
heating water (pH value > 8.5) to produce
substantial corrosion.
▶
C
A
B
When using aluminium, make sure that
the pH value of the heating water is
between 6.5 and a maximum of 8.5.
1
Caution.
Risk of material damage if the heating
water is treated with unsuitable additives.
Unsuitable additives may cause changes in
the components, noises in heating mode and
possibly subsequent damage.
▶
Do not use any unsuitable frost and corrosion protection agents, biocides or sealants.
3
1.
2.
3.
4.
No incompatibility with our products has been detected to
date with proper use of the following additives.
▶
Note
Check whether the float is present in the
condensate trap.
When using additives, follow the manufacturer's instructions without exception.
We accept no liability for the compatibility of any additive or
its effectiveness in the rest of the heating system.
Unclip the lower section of the condensate trap (1) from
the upper section of the condensate trap (2).
Remove the float (3).
Fill the lower section of the condensate trap with water
up to 10 mm below the upper edge of the condensate
discharge pipe.
Re-insert the float (3).
5.
Clip the lower section of the condensate trap (1) into the
upper section of the condensate trap (2).
Additives for cleaning measures (subsequent
flushing required)
–
–
–
–
–
Adey MC3+
Adey MC5
Fernox F3
Sentinel X 300
Sentinel X 400
Additives intended to remain permanently in the
installation
–
–
Adey MC1+
Fernox F1
0020230535_05 ecoFIT pure Installation and maintenance instructions
17
7 Start-up
7.5
▶
7.6
1.
2.
7.7
Switching on the product
7.8
Switch on the product via the main switch installed onsite.
Checking and adjusting the gas settings
Only a qualified competent person is authorised to implement the settings on the gas valve assembly.
Each destroyed tamper-proof seal must be replaced.
Filling the heating installation
Flush the heating installation through.
Fill the heating installation with the maximum possible
volume flow.
The CO₂ adjusting screw must be sealed.
Never modify the factory setting of the gas pressure regulator of the gas valve assembly.
7.8.1
Checking the gas flow rate
Checking the gas connection pressure (gas
flow pressure)
The gas flow rate has been set during production and does
not require adjustment. With the front casing fitted check the
gas flow rate of the boiler as follows:
▶
▶
▶
▶
▶
▶
Start up the product with the check programme P.01.
In addition, ensure that maximum heat can be dissipated
into the heating system by turning up the room thermostat.
Wait at least 5 minutes until the boiler has reached its
operating temperature.
Ensure that all other gas appliances in the property are
turned off.
Measure the gas flow rate at the gas meter.
Compare the measured values with the corresponding
values in the table.
H gas in m³/h
Qnw from the data
plate
Nom.
+5%
−10%
15.3
1.62
1.70
1.46
18.4
1.95
2.05
1.76
24.7
2.61
2.74
2.35
25.7
2.72
2.86
2.45
28.6
3.03
3.18
2.73
30.6
3.24
3.40
2.92
35.7
3.78
3.97
3.40
2
1
1.
2.
3.
4.
5.
6.
7.
8.
▶
Check all of the piping and ensure that the gas flow rates
are correct.
Only put the product into operation once the gas flow
rates have been corrected.
Great Britain
9.
Conditions: Gas flow rate in the permissible range
▶
▶
▶
End the check programme P.01.
Allow the boiler to cool down by allowing pump overrun to
operate for a minimum of 2 minutes.
Record the boiler maximum gas flow rate onto the
Benchmark gas boiler commissioning checklist.
Natural gas
G20
1.7
… 2.0 kPa
(17.0
… 20.0 mbar)
Should the pressure recorded at the reference test point
in the boiler be lower than indicated check if there is
any blockage in the pipework or if the pipework is undersized.
Conditions: Gas flow pressure not in the permissible range
Caution.
Risk of material damage and operating
faults caused by incorrect gas connection pressure.
If the gas connection pressure lies outside
the permissible range, this can cause operating faults in and damage to the product.
▶ Do not make any adjustments to the
product.
▶ Do not start up the product.
▶
▶
18
With the boiler operating at full load check that the gas
inlet working pressure at the reference test point (2)
complies with the requirements.
Permissible connection pressure
Conditions: Gas flow rate not in the permissible range
▶
Ensure that the gas inlet working pressure can be
obtained with all other gas appliances in the property
working.
Close the gas stopcock (1).
Undo the sealing screw on the test nipple (2).
Connect a manometer to the test nipple (2).
Open the gas stopcock (1).
Start up the product with check programme P.01 (system with eBUS control) or P.03 (installation without
eBUS control).
In addition, ensure that maximum heat can be dissipated into the heating system by turning up the room
thermostat.
If you cannot correct the failure, notify the gas supply
company and proceed as follows:
End check programme P.01.
Installation and maintenance instructions ecoFIT pure 0020230535_05
Adapting the unit to the heating installation 8
▶
▶
▶
▶
▶
▶
▶
▶
▶
Allow the boiler to cool down by allowing pump overrun
to operate for a minimum of two minutes.
Close the gas stopcock.
Remove the pressure gauge and retighten the sealing
screw (2) for the measuring nipple.
Open the gas stopcock (1).
Check the test nipple for gas tightness.
Close the gas stopcock (1).
Install the front casing. (→ Page 9)
Disconnect the product from the electrical installation.
You must not start up the boiler.
4.
Measure the CO₂ content at the flue gas analysis point
(1).
Compare the measured value with the corresponding
value in the table.
5.
Checking the CO₂ content
Great Britain
front casing on / front casing off
Natural gas
G20
9.2 ±1 %
◁
▽
Conditions: Gas flow pressure in the permissible range
▶
▶
▶
▶
▶
▶
▶
▶
▶
End the check programme P.01.
Allow the boiler to cool down allowing pump overrun to
operate for a minimum of two minutes.
Close the gas stopcock (1).
Remove the pressure gauge and retighten the sealing
screw (2) for the measuring nipple.
Open the gas stopcock (1).
Check the test nipple for gas tightness.
Remove the front casing. (→ Page 9)
Reset boiler controls for normal operation.
Record the appliance gas inlet working pressure (kPa
resp. mbar) in the Benchmark gas boiler commissioning
checklist.
7.8.2
1.
2.
3.
4.
5.
6.
7.
Check the flue gas installation is intact in accordance
with the latest gas safe technical bulletin and information supplied in the installation instructions.
For extended flue gas installations check for flue gas
recirculation using the air analysis point.
Use a flue gas analyser.
If you discover CO or CO2 in the supply air, search for
the leak in the flue gas installation or for signs of flue
gas recirculation.
Eliminate the damage properly.
Check again whether the supply air contains any CO or
CO2.
If you cannot eliminate the damage, do not start up the
product.
7.8.3
1.
2.
Checking the leak-tightness of the flue gas
installation and flue gas recirculation
Checking the CO₂ content
Start up the product with check programme (P.01).
Overview of the check programmes (→ Page 16)
Wait until the value that is read is stable.
– Waiting period for reading a stable value: 5 min
1
3.
7.9
▶
▶
The value is OK.
The value is not OK; you cannot start up the
product.
▶ Inform Customer Service.
Checking leak-tightness
Check the gas pipe, the heating circuit and the hot water
circuit for leak-tightness.
Check that the air/flue pipe has been installed correctly.
Conditions: Room-sealed operation
▶
Check whether the vacuum chamber has been closed
tightly.
7.10
1.
2.
3.
4.
5.
8
Checking the heating mode
Activate the heating mode on the user interface.
Turn all thermostatic radiator valves on the radiators
until they are fully open.
Allow the product to operate for at least 15 minutes.
Purge the heating installation.
Call up the Live Monitor.
– Menu → Live Monitor
Status codes – Overview (→ Page 30)
◁ If the product is working correctly, the display shows
S.04.
Adapting the unit to the heating
installation
You can reset/change the system parameters (section "Using diagnostics codes").
Overview of diagnostics codes (→ Page 27)
8.1
Burner anti-cycling time
To prevent frequent switching on and off of the burner and
thus prevent energy losses, an electronic restart lockout
is activated for a specific period each time the burner is
switched off. The burner anti-cycling time is only active for
the heating mode. Hot water handling mode during a burner
anti-cycling time does not affect the time function element.
Unscrew the cover from the flue gas analysis point (1).
0020230535_05 ecoFIT pure Installation and maintenance instructions
19
9 Handing the product over to the end user
8.1.1
▶
Set the burner anti-cycling time via the diagnostics code.
Overview of diagnostics codes (→ Page 27)
TFlow
(target)
[°C]
Set maximum burner anti-cycling time [min]
1
5
10
15
20
25
30
30
2.0
4.0
8.5
12.5
16.5
20.5
25.0
35
2.0
4.0
7.5
11.0
15.0
18.5
22.0
40
2.0
3.5
6.5
10.0
13.0
16.5
19.5
45
2.0
3.0
6.0
8.5
11.5
14.0
17.0
50
2.0
3.0
5.0
7.5
9.5
12.0
14.0
55
2.0
2.5
4.5
6.0
8.0
10.0
11.5
60
2.0
2.0
3.5
5.0
6.0
7.5
9.0
65
2.0
1.5
2.5
3.5
4.5
5.5
6.5
70
2.0
1.5
2.0
2.5
2.5
3.0
3.5
75
2.0
1.0
1.0
1.0
1.0
1.0
1.0
TFlow
(target)
[°C]
Set maximum burner anti-cycling time
[min]
35
40
45
50
55
60
30
29.0
33.0
37.0
41.0
45.0
49.5
35
25.5
29.5
33.0
36.5
40.5
44.0
40
22.5
26.0
29.0
32.0
35.5
38.5
45
19.5
22.5
25.0
27.5
30.5
33.0
50
16.5
18.5
21.0
23.5
25.5
28.0
55
13.5
15.0
17.0
19.0
20.5
22.5
60
10.5
11.5
13.0
14.5
15.5
17.0
65
7.0
8.0
9.0
10.0
11.0
11.5
70
4.0
4.5
5.0
5.5
6.0
6.5
75
1.0
1.0
1.0
1.0
1.0
1.0
8.1.2
▶
10
Setting the burner anti-cycling time
9
Handing the product over to the end
user
▶
When you have finished the installation, attach the sticker
supplied (in the end user's language) to the product
cover.
Explain to the end user how the safety devices work and
where they are located.
Inform the end user how to handle the product.
In particular, draw attention to the safety information
which the end user must follow.
Inform the end user that they must have the product
maintained in accordance with the specified intervals.
Instruct the end user about measures taken for routing
the combustion air supply and flue system.
▶
▶
▶
▶
▶
20
10.1
▶
Eliminating faults
If fault messages (F.xx) appear, eliminate the fault after
referring to the table in the appendix or using the check
programmes. (→ Page 16)
Overview of fault codes (→ Page 31)
If several faults occur at the same time, the display shows
the corresponding fault messages for two seconds each in
alternation.
▶
▶
Press
(max. three times) to restart the product.
If you are unable to eliminate the fault and the fault recurs despite reset attempts, contact customer service.
10.2
Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may void the conformity of
the product and it will therefore no longer comply with the
applicable standards.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the reverse of these instructions.
▶
If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.
10.3
Calling up and clearing the fault memory
The last 10 fault messages are stored in the fault memory.
▶
▶
Resetting the remaining burner anti-cycling
time
Press the reset button.
Troubleshooting
▶
▶
▶
Call up the installer level. (→ Page 15)
Navigate to the fault codes.
◁ The number of faults that have occurred is shown in
the display and the faults that are currently called up
are displayed with their fault numbers F.xx.
Press
or
to call up individual fault messages.
To delete the entire fault list, navigate to diagnostics code
D.094 in the installer level.
Set the diagnostics code to 1, and confirm by pressing
.
10.4
1.
2.
Resetting parameters to factory settings
Navigate to diagnostics code D.096 in the installer level.
Set the diagnostics code to 1, and confirm by pressing
.
Installation and maintenance instructions ecoFIT pure 0020230535_05
Troubleshooting 10
10.5
1.
2.
3.
4.
5.
Preparing the repair work
Decommission the product.
Disconnect the product from the electrical installation.
Remove the front casing.
Close the gas stopcock.
Close the service valves in the heating flow and in the
heating return.
Close the service valve in the cold water pipe.
Drain the product if you want to replace water-bearing
components of the product.
Make sure that water does not drip on live components
(e.g. the electronics box).
Use only new seals and O-rings. Do not use any additional components.
6.
7.
8.
9.
10.6
4.
Remove the return pipe (2).
B
A
5.
Remove the gas pipe.
Replacing defective components
10.6.1 Replacing the burner
1.
2.
3.
4.
5.
Remove the gas-air mixture unit. (→ Page 23)
Remove the burner seal.
Remove the burner.
Install the new burner complete with new seal on the
heat exchanger.
Install the gas-air mixture unit. (→ Page 25)
10.6.2 Replacing the gas-air mixture unit
1.
2.
Remove the gas-air mixture unit. (→ Page 23)
Install the new gas-air mixture (→ Page 25).
B
3
A
4
6.
7.
Undo the clip underneath the condensate tray (4).
Undo the two screws (3).
10.6.3 Replacing the heat exchanger
1.
2.
A
Remove the side section. (→ Page 9)
Remove the gas-air mixture unit. (→ Page 23)
5
A
C
B
C
8.
Lift the heat exchanger up slightly and remove it together with the condensate tray.
9. Remove the ignition transformer (5).
10. Replace all the seals.
11. Install the new heat exchanger in reverse order.
B
1
2
E
D
3.
Remove the flow pipe (1).
0020230535_05 ecoFIT pure Installation and maintenance instructions
21
11 Inspection and maintenance
10.6.4 Replacing the main PCB
10.7
▶
Checking the product for leak-tightness
Check that the product is leak-tight. (→ Page 19)
C
C
11
Inspection and maintenance
11.1
D
B
Using original seals
If you replace components, use only the enclosed original
seals; additional sealing materials are not required.
11.2
A
▶
A
Observing inspection and maintenance
intervals
Adhere to the minimum inspection and maintenance intervals. The inspection may require maintenance to be
carried out earlier, depending on the results.
– Inspection and maintenance work (→ Appendix)
11.3
1.
1.
2.
3.
4.
5.
6.
7.
Open the electronics box. (→ Page 13)
Pull all of the plugs out from the PCB.
Undo the clips on the PCB.
Remove the PCB.
Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
Plug in the PCB plugs.
Close the electronics box.
2.
Checking the CO₂ content
Start up the product with check programme (P.01).
Overview of the check programmes (→ Page 16)
Wait until the value that is read is stable.
– Waiting period for reading a stable value: 5 min
1
10.6.5 Replacing the PCB for the user interface
3.
4.
D
5.
C
C
Unscrew the cover from the flue gas analysis point (1).
Measure the CO₂ content at the flue gas analysis point
(1).
Compare the measured value with the corresponding
value in the table.
Checking the CO₂ content
B
Great Britain
front casing on / front casing off
A
Natural gas
G20
9.2 ±1 %
A
1.
2.
3.
4.
5.
6.
7.
22
◁
▽
The value is OK.
The value is not OK; you cannot start up the
product.
▶ Set the CO₂ content. (→ Page 23)
Open the electronics box. (→ Page 13)
Pull the plug out of the PCB.
Undo the clips on the PCB.
Remove the PCB.
Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
Plug in the PCB plug.
Close the electronics box.
Installation and maintenance instructions ecoFIT pure 0020230535_05
Inspection and maintenance 11
11.4
Setting the CO₂ content
11.5
Conditions: The CO₂ content must be adjusted
Note
The gas-air mixture unit consists of three main
components:
– Ventilator
1
– Gas valve
A
– Burner cover
B
▶
▶
▶
▶
Removing the gas-air mixture unit
1.
2.
3.
Switch off the product via the main switch.
Close the gas isolator cock.
Remove the front casing. (→ Page 9)
Remove the sticker.
Turn the screw (1) to set the CO₂ content (value with
front casing removed).
◁ To increase the CO₂ content: Turn anti-clockwise
◁ To decrease the CO₂ content: Turn clockwise
Only carry out the adjustment in increments of 1/8 turn
and wait approximately 1 minute after each adjustment
until the value has stabilised.
Compare the measured value with the corresponding
value in the table.
A
1
Setting the CO₂ value
Great Britain
front casing on
/ front casing
off
B
Natural gas
G20
CO₂ at full load
9.2 ±0.2 %
Set for Wobbe
index W₀
14.09 kW⋅h/m³
O₂ at full load
4.5 ±1.8 vol. %
CO at full load
≤ 250 ppm
CO/CO₂
≤ 0.0027
4.
Remove the air intake pipe (1).
2
A
B
▽
▶
▶
If the setting is not in the specified adjustment range,
you must not start up the product.
▶ Inform Customer Service.
Check whether the air-quality requirements with regard
to carbon monoxide are fulfilled.
Fit the front panel.
C
3
D
5.
6.
0020230535_05 ecoFIT pure Installation and maintenance instructions
Push the clip (2) upwards.
Remove the flue pipe (3).
23
11 Inspection and maintenance
11.7
▶
Checking the burner
Check the surface of the burner for damage. If you see
any damage, replace the burner.
11.8
Checking the ignition electrode
B
3
D
4
5
2
1
C
A
7.
8.
9.
Remove the plugs from the gas valve.
Remove the gas-air mixture unit.
Remove both burner seals from the burner cover.
1
1.
2.
3.
4.
5.
6.
11.9
1.
2.
3.
Cleaning the condensate trap
2
10. Remove the burner (4).
11.6
Disconnect the connection (2) and the earthing cable
(1).
Remove the fixing screws (3).
Carefully remove the electrode from the combustion
chamber.
Check that the electrode ends (4) are undamaged.
Check the electrode distance.
– Clearance for the ignition electrodes: 3.5 … 4.5 mm
Make sure that the seal (5) is free from damage.
▽ If necessary, replace the seal.
Cleaning the heat exchanger
Check the heat exchanger for damage and dirt.
If required, clean and replace the heat exchanger.
Protect the folded down electronics box against sprayed
water.
A
B
1
1
3
4.
Clean the ribs of the heat exchanger (1) with water.
◁ The water runs out via the condensate tray.
1.
2.
3.
4.
Unclip the lower section of the condensate trap (1) from
the upper section of the condensate trap (2).
Remove the float (3).
Flush out the lower section of the condensate trap with
water.
Re-insert the float (3).
Note
Check whether the float is present in the
condensate trap.
24
Installation and maintenance instructions ecoFIT pure 0020230535_05
Decommissioning the product 12
5.
Clip the lower section of the condensate trap (1) into the
upper section of the condensate trap (2).
11.10 Installing the gas-air mixture unit
1.
2.
3.
4.
5.
6.
Install the burner.
Install two new burner seals in the burner hood.
Install the gas-air mixture unit.
Tighten the screws on the gas-air mixture unit.
– Ideally to 7 Nm if a torque spanner is available.
Install the flue pipe.
Install the air intake pipe.
11.11 Completing inspection and maintenance
work
1.
2.
Check the gas connection pressure (gas flow pressure).
(→ Page 18)
Check the CO₂ content. (→ Page 22)
11.12 Checking the product for leak-tightness
▶
12
▶
▶
▶
▶
13
Check that the product is leak-tight. (→ Page 19)
Decommissioning the product
Switch off the product.
Disconnect the product from the electrical installation.
Close the gas stopcock.
Close the cold-water isolation valve.
Recycling and disposal
Disposing of the packaging
▶
▶
14
Dispose of the packaging correctly.
Observe all relevant regulations.
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
0020230535_05 ecoFIT pure Installation and maintenance instructions
25
Appendix
Appendix
A
Inspection and maintenance work
The table below lists the manufacturer requirements with respect to minimum inspection and maintenance intervals. If national regulations and directives require shorter inspection and maintenance intervals, you should observe these instead of
the intervals listed. Each time inspection and maintenance work is carried out, carry out the required preparatory and completion work.
Note
Note: For products that are not part of the annual service agreement, maintenance must be carried out at least
once every five years.
#
Maintenance work
Interval
1
Ask the end user whether any significant problems occur when operating
the product
Annually
2
Use the diagnostics system to check the product's fault history
Annually
3
Visually inspect whether the air/flue pipe and its opening have been installed correctly in accordance with the set-up instructions
Annually
4
Check that the unit has been installed correctly and the connections have
been secured
Annually
5
Check all of the connections for tightness
Annually
6
Check that the condensate pipe is in good condition, that it is leak-tight
and that the drain is correct
Annually
7
Check whether all of the externally routed condensate pipes are dimensioned correctly and have been insulated sufficiently (frost protection)
Annually
8
Check whether the gas flow rate corresponds with the specifications on
the data plate and lies within the tolerances specified in these instructions
Annually
9
If the gas flow rate lies outside of the tolerances specified in these instructions, eliminate the fault in accordance with the regulations and the
current technology
Annually
10
Check the general condition of the product and, if required, eliminate any
faults that are found
Annually
11
Carry out the combustion analysis: Measure the CO content, CO₂ content
and the CO/CO₂ ratio. For products with a rear air/flue connection: The
combustion analysis can only be carried out when the unit casing has
been removed; it is not necessary to test these products for flue gas recirculation
Annually
12
Check the product's recirculation at the supply air test point on the air/flue
pipe. If required, inspect the entire air/flue system and, if necessary, correct the fault
Annually
13
Disconnect the product from the electrical installation
Annually
14
Check and, if required, correct the electrical installation
Annually
15
Remove the unit casing, check the condition of all of the functional components, in particular for leaks, corrosion, rust, etc. and, if required, repair
any damage
Annually
16
Visual inspection of the heat exchanger and burner seals
Annually
17
Carefully clean the inside of the product: The air passages to the burner
must be clear and clean
Annually
18
Close the installation's gas stopcock and, if required, service valves
Annually
19
Check the quality of the heating water: Clarity (clouding), correct inhibitor
and pH value
Annually
20
Removing the gas-air mixture unit
If required, at least every
5 years
23
21
Checking the burner
If required, at least every
5 years
24
22
Cleaning the condensate trap
Annually
24
23
Filling the condensate trap
Annually
17
24
Cleaning the heat exchanger
If required, at least every
5 years
24
26
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
#
Maintenance work
Interval
25
Check and, if required, replace the insulating mat in the burner area
If required, at least every
5 years
26
Installing the gas-air mixture unit
If required, at least every
5 years
27
Reassemble the product
After each time maintenance
work is carried out
28
Open the service valves, carry out the required leak-tightness test
Annually
29
Fill the product/heating installation to the filling pressure specified for the
system
Annually
30
Connect the product to the electrical installation
Annually
31
Run the test operation on the product/heating installation including hot
water generation (if available) and, if required, purge the product/heating
installation
Annually
32
Record all of the analysis results in the Benchmark service record in
these instructions
Annually
B
25
Overview of diagnostics codes
Setting level
Values
Unit
Increment, select, explanation
Min.
Max.
d.00 Heating maximum output
–
–
kW
The maximum heating output varies
depending on the product.
→ Section "Technical data"
d.01 Pump overrun in heating
mode
1
60
min
d.02 Burner anti-cycling time
in heating mode
2
60
d.04 Water temperature in the
cylinder
d.05 Determined heating flow
set target temperature
Current value
Current value
Default setting
Own setting
→ Section
"Technical
data"
Adjustable
1
5
Adjustable
min
1
20
Adjustable
℃
–
–
Not
adjustable
℃
–
–
Not
adjustable
d.07 Set target temperature
for the domestic hot water
cylinder
Current value
℃
–
–
Not
adjustable
d.08 Status of the 230 V thermostat
Current value
–
0 = Room thermostat open (no heat
requirement)
1 = Room thermostat closed (heat
requirement)
–
Not
adjustable
d.09 Heating flow set target
temperature that is set on the
eBUS room thermostat
Current value
–
–
–
Not
adjustable
d.10 Status of the internal
pump in the heating circuit
Current value
–
off / on
–
Not
adjustable
d.11 Status of the heating circuit's shunt pump
Current value
–
off / on
–
Not
adjustable
d.13 Status of the hot water
circuit's circulation pump
Current value
–
off / on
–
Not
adjustable
d.16 Status of the 24 V room
thermostat
Current value
–
off = Heating off
on = Heating on
–
Not
adjustable
d.17 Heating control
–
–
–
off = Flow temperature
on = Return temperature (adjustment
for underfloor heating. If you have activated the return temperature control,
the automatic heating output determination function is not active.)
0
Adjustable
d.18 Pump overrun operating
mode
1
3
–
1 = Comfort (continuously operating
pump)
3 = Eco (intermittent pump mode –
for the dissipation of the residual heat
after hot water generation at an extremely low heat demand)
1
Adjustable
0020230535_05 ecoFIT pure Installation and maintenance instructions
27
Appendix
Setting level
Values
d.20 Maximum hot water set
target temperature
Min.
Max.
50
60
Unit
Increment, select, explanation
℃
1
Default setting
Own setting
50
Adjustable
d.23 Status of the heating demand
Current value
–
off = Heating off (Summer mode)
on = Heating on
–
Not
adjustable
d.24 Status of the pressure
monitor
0
1
–
off = Not switched
on = Switched
–
Not
adjustable
d.25 Status of the requirement
to reheat the cylinder or for
the hot water warm start from
the eBUS thermostat
Current value
–
off = Function deactivated
on = Function activated
–
Not
adjustable
d.27 Function of relay 1 (multifunctional module)
1
10
–
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extractor hood
5 = External solenoid valve
6 = External fault message
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Legionella protection pump
10 = Solar valve
1
Adjustable
d.28 Function of relay 2 (multifunctional module)
1
10
–
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extractor hood
5 = External solenoid valve
6 = External fault message
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Legionella protection pump
10 = Solar valve
2
Adjustable
d.31 Automatic filling device
0
2
–
0 = Manual
1 = Semi-automatic
2 = Automatic
0
Adjustable
d.33 Fan speed target value
Current value
rpm
Fan speed = Display value x 100
–
Not
adjustable
d.34 Value for the fan speed
Current value
rpm
Fan speed = Display value x 100
–
Not
adjustable
d.40 Heating flow temperature
Current value
℃
–
–
Not
adjustable
d.41 Heating return temperature
Current value
℃
–
–
Not
adjustable
0.1
1.2
Adjustable
–
1
20
Adjustable
℃
–
–
Not
adjustable
d.43 Heating curve
0.2
4
d.45 Value for the base point
of the heating curve
15
30
d.47 Outside temperature
Current value
–
d.50 Correction of the minimum fan speed
0
3000
rpm
1
Fan speed = Display value x 10
600
Adjustable
d.51 Correction of the maximum fan speed
-2500
0
rpm
1
Fan speed = Display value x 10
-1000
Adjustable
d.58 Solar circuit reheating
0
3
–
0 = Boiler's Legionella protection
function deactivated
3 = Hot water activated (target value
min. 60 °C)
0
Adjustable
d.60 Number of blocks by the
temperature sensor
Current value
–
–
–
Not
adjustable
d.61 Number of successful
ignitions
Current value
–
–
–
Not
adjustable
–
1
0
Adjustable
d.62 Night set-back
28
0
30
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
Setting level
Values
Min.
Unit
Max.
Increment, select, explanation
Default setting
Own setting
d.64 Average burner ignition
time
Current value
s
–
–
Not
adjustable
d.65 Maximum burner ignition
time
Current value
s
–
–
Not
adjustable
d.66 Activation of the warm
start function for hot water
–
–
off = Function deactivated
on = Function activated
1
Adjustable
d.67 Remaining burner anticycling time (setting under
d.02)
Current value
min
–
–
Not
adjustable
d.68 Number of unsuccessful
ignitions at 1st attempt
Current value
–
–
–
Not
adjustable
d.69 Number of unsuccessful
ignitions at 2nd attempt
Current value
–
–
–
Not
adjustable
–
d.71 Maximum heating flow set
target temperature
45
80
℃
1
75
Adjustable
d.75 Maximum cylinder reheating time
20
90
min
1
45
Adjustable
–
–
kW
1
→ Section "Technical data"
–
Adjustable
50
80
d.77 Max. cylinder reheating
d.78 DHW max. flow temperature
℃
1
–
Adjustable
d.80 Running time in heating
mode
Current value
h
–
–
Not
adjustable
d.81 Running time in DHW
mode
Current value
h
–
–
Not
adjustable
d.82 Number of burner ignitions in heating mode
Current value
–
Number of ignitions = Display value x
100
–
Not
adjustable
d.83 Number of burner ignitions in DHW mode
Current value
–
Number of ignitions = Display value x
100
–
Not
adjustable
Number of hours = Display value x 10
300
Not
adjustable
1
→ Section "Technical data"
–
Adjustable
–
off = Not connected
on = Connected
–
Not
adjustable
d.84 Maintenance in
0
3000
h
d.85 Increase in the min. output (heating and DHW mode)
–
–
kW
d.90 Status of the eBUS room
thermostat
Current value
d.93 Setting the product code
0
99
–
1
–
Adjustable
d.94 Delete fault list
0
1
–
off = No
on = Yes
–
Adjustable
d.95 Software versions
–
–
–
1 = Main PCB
2 = Interface PCB
–
Adjustable
d.96 Reset to factory setting
–
–
–
0 = No
1 = Yes
–
Adjustable
d.128 Heating minimum target
value
10
75
℃
1
10
Adjustable
d.129 Hot water minimum target value
35
(combination
unit)
45
(pure
boiler)
60
℃
1
35
Adjustable
0020230535_05 ecoFIT pure Installation and maintenance instructions
29
Appendix
Status codes – Overview
C
Status code
Meaning
Displays in heating mode
S. 0
Heating mode: No requirement
S.01
Heating mode: Advance fan operation
S.02
Heating mode: Pump pre-run
S.03
Heating mode: Burner ignition
S.04
Heating mode: Burner on
S.05
Heating mode: Pump/fan overrun
S.06
Heating mode: Fan overrun
S.07
Heating mode: Pump overrun
S.08
Heating mode: Temporary shutdown after heating procedure
Display in hot water handling mode with cylinder
S.20
Hot water handling mode: Requirement
S.21
Hot water handling mode: Advance fan operation
S.22
Hot water handling mode: Pump pre-run
S.23
Hot water handling mode: Burner ignition
S.24
DHW mode: Burner on
S.25
DHW mode: Pump/fan overrun
S.26
DHW mode: Fan overrun
S.27
DHW mode: Pump overrun
S.28
Hot water handling mode: Temporary shutdown of the burner
S.30
Room thermostat is blocking heating mode.
S.31
No heating demand: Summer mode, eBUS controller, waiting period
S.32
Fan waiting time: Fan speed outside of the tolerance values
S.34
Frost protection active
S.39
Underfloor heating contact open
S.42
Flue non-return flap closed
S.46
Frost protection mode (Comfort): Minimum load
S.53
Product in waiting period/operation block function due to low water pressure (flow/return spread too large)
S.54
Waiting period: Low water pressure in the circuit (flow/return spread too large)
S.88
Product purging active
S.91
Maintenance: Demo mode
S.96
Automatic test programme: Return temperature sensor, heating demands blocked.
S.98
Automatic test programme: Return temperature sensor, heating demands blocked.
S.99
Internal automatic test programmes
S.108
Purging the combustion chamber, fan in operation
S.109
Product's standby mode activated
Other displays
30
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
D
Overview of fault codes
Code
Meaning
Cause
F.00
Flow temperature sensor interruption
NTC plug not plugged in or has come loose, multiple plug on the PCB
not plugged in correctly, interruption in cable harness, NTC defective
F.01
Return temperature sensor interruption
NTC plug not plugged in or has come loose, multiple plug on the PCB
not plugged in correctly, interruption in cable harness, NTC defective
F.10
Flow NTC short circuit
NTC defective, short circuit in cable harness, cable/casing
F.11
Return NTC short circuit
NTC defective, short circuit in cable harness, cable/casing
F.13
Warm start sensor/cylinder sensor short circuit
NTC defective, short circuit in cable harness, cable/casing
F.22
Safety switch-off: Low water pressure
No or insufficient water in the product, water pressure sensor defective,
cable to pump or water pressure sensor loose/not connected/defective
F.23
Safety switch-off: Temperature difference too
great
Pump blocked, insufficient pump output, air in product, flow and return
NTC connected the wrong way round
F.24
Safety switch-off: Temperature rise too fast
Pump blocked, insufficient pump output, air in product, system pressure
too low, non-return valve blocked/incorrectly installed
F.25
Safety switch-off: Flue gas temperature too high
Break in plug connection for optional flue gas safety temperature limiter
(STB), break in cable harness
F.27
Safety switch-off: Flame simulation
Moisture on the electronics, electronics (flame monitor) defective, gas
solenoid valve leaking
F.28
Failure during start-up: Ignition unsuccessful
Gas meter defective or gas pressure monitor has triggered, air in gas,
gas flow pressure too low, thermal isolator device (TAE) has triggered,
condensate duct blocked, incorrect gas restrictor, incorrect spare part
gas valve, fault on the gas valve, multiple plug on PCB incorrectly
plugged in, break in cable harness, ignition system (ignition transformer,
ignition cable, ignition plug, ignition electrode) defective, ionisation
current interrupted (cable, electrode), incorrect earthing of product,
electronics defective
F.29
Failure during operation: Re-ignition unsuccessful
Gas supply temporarily stopped, flue gas recirculation, condensate duct
blocked, defective earthing of product, ignition transformer has spark
failure
F.32
Fan fault
Plug on fan not correctly plugged in, multiple plug on PCB not correctly
plugged in, break in cable harness, fan blocked, Hall sensor defective,
electronics defective
F.49
Fault: eBUS
Short circuit on eBUS, eBUS overload or two power supplies with different polarities on the eBUS
F.61
Fault: Gas valve regulation
–
–
–
Short circuit/short to earth in cable harness for the gas valve
Gas valve defective (coils shorted to earth)
Electronics defective
F.62
Fault: Gas valve switch-off delay
–
–
–
–
Delayed shutdown of gas valve
Delayed extinguishing of flame signal
Gas valve leaking
Electronics defective
F.63
Fault: EEPROM
Electronics defective
F.64
Fault: Electronics/NTC
Flow or return NTC short circuited, electronics defective
F.65
Fault: Electronics temp.
Electronics overheating due to external influences, electronics defective
F.67
Fault: Electronics/flame
Implausible flame signal, electronics defective
F.68
Fault: Unstable flame signal
Air in gas, gas flow pressure too low, incorrect air ratio, condensate
duct blocked, incorrect gas restrictor, ionisation flow interruption (cable,
electrode), flue gas recirculation, condensate duct
F.70
Invalid device specific number (DSN)
If spare parts fitted: Display and PCB replaced at same time and DSN
not reset, incorrect or missing output range coding resistance
F.71
Flow NTC fault
Flow temperature sensor signalling constant value:
–
–
Flow temperature sensor incorrectly positioned at supply pipe
Flow temperature sensor defective
F.72
Flow/return NTC fault
Flow/return NTC temperature difference too great → flow and/or return
temperature sensor defective
F.73
Water pressure sensor signal in the wrong range
(too low)
Interruption/short circuit of water pressure sensor, interruption/short
circuit to GND in supply line to water pressure sensor or water pressure
sensor defective
0020230535_05 ecoFIT pure Installation and maintenance instructions
31
Appendix
Code
Meaning
Cause
F.74
Water pressure sensor signal outside correct
range (too high)
Line to water pressure sensor has a short circuit to 5 V/24 V or internal
fault in the water pressure sensor
F.75
Fault: No pressure change detection when starting pump
Water pressure sensor and/or pump defective, air in the heating installation, insufficient water in the product; check adjustable bypass, connect
external expansion vessel to the return
F.76
Overheating protection on primary heat exchanger has responded
Cable or cable connections for safety fuse in primary heat exchanger or
primary heat exchanger defective
F.77
Fault: Flue non-return flap/condensate pump
No response from flue non-return flap or condensate pump defective
F.83
Fault: Flow and/or return temperature sensor
temperature change
When the burner starts, the temperature change registered at the flow
and/or return temperature sensor is non-existent or too small.
–
–
Insufficient water in product
Flow or return temperature sensor not in correct position at pipe
F.85
Fault: Flow and return temperature sensors
incorrectly installed
The flow and/or return temperature sensors have been installed on the
same pipe/incorrect pipe
F.87
Ignition transformer not connected
Ignition transformer plug not plugged in or has come loose, multiple
plug on the PCB not plugged in correctly, interruption in cable harness,
electronics defective
F.88
Gas valve not connected
Gas valve plug not plugged in or has come loose, multiple plug on the
PCB not plugged in correctly, interruption in cable harness, electronics
defective
F.89
Incorrect pump detected
Unsuitable pump connected, PWM plug not plugged in or has come
loose, multiple plug on the PCB not plugged in correctly, interruption in
cable harness, electronics defective
con
No communication with the PCB
Communication fault between display and PCB in the electronics box
32
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
E
Wiring diagram
X51
2
X51
Burner off
X106
3
1
X51
X32
X35
Burner
off
24V=
RT
–
13
5
6
5
24V
4
15
3
16
1
2
3
4
1
9
M
6
5
1
X22
X20
4
X20
+
BUS
X41
X40
X106
X51
eBUS
24V
7
230V~
X14
X30
L
N
X21
X1
X1
L
N
L
10
N
11
12
RT
230V~
X12
L
N
RT
X14
L
N
8
9
X21
X12
1
Main PCB
7
Gas valve assembly
2
Interface PCB
8
Heating pump
3
Control system
9
Monitoring electrode
4
Temperature sensor on the heating flow
10
Room thermostat
5
Temperature sensor on the heating return
11
Main power supply and connection for 230 V control
6
Fan
12
Ignition electrode
0020230535_05 ecoFIT pure Installation and maintenance instructions
33
Appendix
F
Wiring diagram, 30 kW
X51
2
X51
Burner off
X106
3
1
X51
X32
X35
Burner
off
24V=
RT
–
13
5
6
5
24V
4
15
3
16
1
2
3
4
1
9
M
6
5
1
X22
X20
4
X20
+
BUS
X41
X40
X106
X51
eBUS
24V
7
230V~
X14
X30
L
N
X21
X1
X1
L
N
L
10
N
11
12
RT
230V~
X12
L
N
RT
X14
L
N
8
9
X21
X12
1
Main PCB
7
Gas valve assembly
2
Interface PCB
8
Heating pump
3
Control system
9
Monitoring electrode
4
Temperature sensor on the heating flow
10
Room thermostat
5
Temperature sensor on the heating return
11
Main power supply and connection for 230 V control
6
Fan
12
Ignition electrode
34
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
G
Position of the opening in the air/flue pipe
P
I
Q
Q
T
Q
S
Q
R
F
Q
D, E
G
O
C
A
I
M
B
L
N
N
H
H
M
J
K
G.1
Positioning of the opening of a fan-supported flue gas pipe
Installation site
Minimum dimensions
A
Directly below an opening, air bricks, opening windows, etc., that can be opened.
300 mm
B
Above an opening, air bricks, opening windows, etc., that can be opened.
300 mm
C
Horizontally to an opening, air bricks, opening windows, etc., that can be opened.
300 mm
D
Below temperature-sensitive building components, e.g. plastic gutters, down pipes or wastewater
pipes
75 mm
E
Below eaves
200 mm
F
Below balconies or car port roofs
200 mm
G
From vertical wastewater pipes or down pipes
150 mm
H
From external or internal corners
200 mm
I
Above floors, roofs or balconies
300 mm
J
From a surface facing a terminal
600 mm
K
From a terminal facing a terminal
1,200 mm
L
From an opening in the car port (e.g. door, window) which leads into the dwelling
1,200 mm
M
Vertical from a terminal on the same wall
1,500 mm
N
Horizontal from a terminal on the same wall
300 mm
O
From the wall on which the terminal has been installed
0 mm
P
From a vertical structure on the roof
300 mm
Q
Above the roof area
300 mm
R
Horizontal from adjacent windows on pitched or flat roofs
600 mm
S
Above adjacent windows on pitched or flat roofs
600 mm
T
Below adjacent windows on pitched or flat roofs
2,000 mm
0020230535_05 ecoFIT pure Installation and maintenance instructions
35
Appendix
G.2
Horizontal terminal positioning
BS 5440-1 recommends that fanned flue chimney terminals should be positioned as follows:
a) at least 2 m from an opening in the building directly opposite, and
b) so that the products of combustion are not directed to discharge directly across a boundary if the products are likely to
cause a nuisance to a neighbour or discharge over a walkway or patio.
For IE see current issue of IS 813.
For boilers covered within this manual.
1) Dimensions D, E, F and G:
These clearances may be reduced to 25 mm without affecting the performance of the boiler. In order to ensure that the condensate plume does not affect adjacent surfaces the terminal should be extended as shown below.
Balcony/eaves
Gutter
Adequately secured
air/flue gas pipe
The flue pipe must
protrude beyond any overhang
2) Dimension H:
This clearance may be reduced to 25 mm without affecting the performance of the boiler. However, in order to ensure that
the condensate plume does not affect adjacent surfaces a clearance of 300 mm is preferred.
For 1 and 2 above you can use a flue gas management kit to enable the termination point to be positioned and directed away
from the building fabric.
36
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
H
Commissioning Checklist
Benchmark Commissioning and
Servicing Section
It is a requirement that the boiler is installed and commissioned to the
completed in full.
www.centralheating.co.uk
© Heating and Hotwater Industry Council (HHIC)
0020230535_05 ecoFIT pure Installation and maintenance instructions
37
Appendix
GAS BOILER SYSTEM COMMISSIONING CHECKLIST
This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating
compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
CONTROLS
Optimum start control
Fitted
Fitted
Fitted
Fitted
ALL SYSTEMS
Yes
Yes
CENTRAL HEATING MODE
OR
mbar
OR
mbar
COMBINATION BOILERS ONLY
Yes
Yes
DOMESTIC HOT WATER MODE
OR
mbar OR
mbar
Yes
Temperature
CONDENSING BOILERS ONLY
Yes
ALL INSTALLATIONS
AND
²
Ratio
AND
²
Ratio
Yes
Yes
Yes
Yes
38
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
SERVICE RECORD
It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.
Service Provider
SERVICE 01
SERVICE 02
AND
AND
²%
²%
SERVICE 03
AND
AND
²%
²%
SERVICE 04
AND
AND
²%
²%
SERVICE 05
AND
AND
²%
²%
SERVICE 06
AND
AND
²%
²%
SERVICE 07
AND
AND
²%
²%
SERVICE 08
AND
AND
²%
²%
SERVICE 09
AND
AND
²%
²%
SERVICE 10
AND
AND
²%
²%
0020230535_05 ecoFIT pure Installation and maintenance instructions
AND
AND
²%
²%
39
Appendix
PRIOR TO CO AND COMBUSTION RATIO CHECK
The boiler manufacturer’s installation instructions should have been followed, gas type verified and gas
supply pressure/rate checked as required prior to commissioning.
As part of the installation process, especially where a flue has been fitted by persons other than the
boiler installer, visually check the integrity of the whole flue system to confirm that all components are
correctly assembled, fixed and supported. Check that manufacturer’s max. flue lengths have not been
exceeded and all guidance has been followed (e.g. Gas Safe Technical Bulletin TB008).
The flue gas analyser should be of the correct type, as specified by BS 7967
Prior to its use, the flue gas analyser should have been maintained and calibrated as specified by the
manufacturer. The installer must have the relevant competence for use of the analyser.
Check and zero the analyser IN FRESH AIR as per analyser manufacturer’s instructions.
NOTE
THE AIR GAS RATIO VALVE IS FACTORY
SET AND MUST NOT BE ADJUSTED
DURING COMMISSIONING UNLESS THIS
ACTION IS RECOMMENDED FOLLOWING
CONTACT WITH THE MANUFACTURER.
If any such adjustment is recommended and
further checking of the boiler is required the
installer/service engineer must be competent
to carry out this work and to use the flue gas
analyser accordingly.
If the boiler requires conversion to operate with
a different gas family (e.g. conversion from
natural gas to LPG) separate guidance will be
provided by the boiler manufacturer
SET BOILER TO MAXIMUM RATE
In accordance with boiler instructions, set boiler to operate at max. rate
(full load condition). Allow sufficient time for combustion to stabilise.
NOTE - Do not insert analyser probe during this period to avoid
possible “flooding” of sensor.
CARRY OUT FLUE INTEGRITY CHECK USING ANALYSER
Insert analyser probe into air inlet test point and allow readings to stabilise.
NOTE - where no air inlet test point is provided then a flue integrity check
with the analyser is not possible. The installer should verify that flue
integrity has been visually checked in accordance with the “Prior to
CO and combustion ratio check” box above before proceeding to the
“Check CO and combustion ratio at maximum rate” stage below.
VERIFY FLUE INTEGRITY
Analyser readings indicate that combustion products
and inlet air must be mixing. Further investigation of
the flue is therefore required.
Check that flue components are assembled, fixed
and supported as per boiler/flue manufacturer’s
instructions.
Check that flue and flue terminal are not obstructed.
NO
Is
O2 • 20.6%
and
CO2 < 0.2%
YES
Is
O2 • 20.6%
and
CO2 < 0.2%
YES
NO
TURN OFF APPLIANCE AND CALL
MANUFACTURER’S TECHNICAL HELPLINE
FOR ADVICE.
THE APPLIANCE MUST NOT BE
COMMISSIONED UNTIL PROBLEMS ARE
IDENTIFIED AND RESOLVED.
CHECK CO AND COMBUSTION RATIO AT MAX. RATE
With boiler still set at maximum rate, insert analyser probe into flue gas
sampling point. Allow readings to stabilise before recording.
NOTE - If no flue gas sampling point is present and the correct procedure is
not specified in the manual, consult boiler manufacturer for guidance.
NO
Check all seals around the appliance burner,
internal flue seals, door and case seals.
Rectify where necessary.
Is
CO less than
335ppm
and
CO/CO2 ratio less
than 0.004
Is
CO less than
350ppm and
CO/CO2 ratio
less than 0.004
YES
YES
SET BOILER TO MINIMUM RATE
In accordance with boiler instructions, set boiler to operate at minimum rate (to
minimum load condition). Allow sufficient time for combustion to stabilise.
NOTE - If manufacturer’s instructions do not specify how to set boiler to minimum
rate contact Technical Helpline for advice.
NO
CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE
With boiler still set at minimum rate, insert analyser probe into flue gas sampling
point. Allow readings to stabilise before recording.
NOTE - If no flue gas sampling point is present and the correct procedure is not
specified in the manual, consult boiler manufacturer for guidance.
TURN OFF APPLIANCE AND CALL
MANUFACTURER’S TECHNICAL HELPLINE
FOR ADVICE.
THE APPLIANCE MUST NOT BE
COMMISSIONED UNTIL PROBLEMS ARE
IDENTIFIED AND RESOLVED. IF
COMMISSIONING CANNOT BE FULLY
COMPLETED, THE APPLIANCE MUST BE
DISCONNECTED FROM THE GAS SUPPLY IN
ACCORDANCE WITH THE GSIUR.
NOTE: Check and record CO and combustion ratio
at both max. and min. rate before contacting the
manufacturer.
40
NO
Is
CO less than
350ppm and
CO/CO2 ratio
less than 0.004
YES
BOILER IS OPERATING SATISFACTORILY
no further actions required.
Ensure test points are capped, boiler case is correctly replaced and
all other commissioning procedures are completed.
Complete Benchmark Checklist, recording CO and combustion ratio
readings as required.
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
I
Technical data
Technical data – Heating
VU 126/6-3 OV (HGB)
VU 156/6-3 OV (HGB)
VU 186/6-3 OV (HGB)
VU 256/6-3 OV (HGB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 … 80 ℃
10 … 80 ℃
10 … 80 ℃
10 … 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
530 l/h
655 l/h
788 l/h
1,094 l/h
Nominal water flow (ΔT = 30 K)
353 l/h
436 l/h
525 l/h
729 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
1.23 l/h
1.53 l/h
1.84 l/h
2.55 l/h
VU 306/6-3 OV (HGB)
VU 356/6-3 OV (HGB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 … 80 ℃
10 … 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
1,313 l/h
1,535 l/h
Nominal water flow (ΔT = 30 K)
876 l/h
1,023 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
3.06 l/h
3.65 l/h
Technical data – G20 power/loading G20
VU 126/6-3 OV (HGB)
VU 156/6-3 OV (HGB)
VU 186/6-3 OV (HGB)
VU 256/6-3 OV (HGB)
Maximum heat output
12 kW
15 kW
18 kW
25 kW
Effective output range (P)
at 40/30 °C
4.8 … 13.0 kW
4.8 … 16.2 kW
5.3 … 19.5 kW
6.5 … 27.0 kW
Effective output range (P)
at 50/30 °C
4.7 … 12.8 kW
4.7 … 15.9 kW
5.2 … 19.1 kW
6.4 … 26.5 kW
Effective output range (P)
at 80/60 °C
4.5 … 12.3 kW
4.5 … 15.2 kW
5.0 … 18.3 kW
6.1 … 25.4 kW
Domestic hot water heat
output (P)
4.4 … 15.0 kW
4.4 … 18.0 kW
4.9 … 25.2 kW
6.0 … 30.0 kW
Maximum heat input –
heating (Q max.)
12.3 kW
15.3 kW
18.4 kW
25.5 kW
Minimum heat input – heating (Q min.)
4.5 kW
4.5 kW
5.0 kW
6.1 kW
Maximum heat input – hot
water (Q max.)
15.3 kW
18.4 kW
25.7 kW
30.6 kW
Minimum heat input – hot
water (Q min.)
4.5 kW
4.5 kW
5.0 kW
6.1 kW
VU 306/6-3 OV (HGB)
VU 356/6-3 OV (HGB)
Maximum heat output
30 kW
35 kW
Effective output range (P)
at 40/30 °C
7.6 … 32.4 kW
7.6 … 37.8 kW
Effective output range (P)
at 50/30 °C
7.4 … 31.8 kW
7.0 … 35.8 kW
Effective output range (P)
at 80/60 °C
7.1 … 30.5 kW
7.2 … 34.8 kW
Domestic hot water heat
output (P)
7.0 … 35.0 kW
7.1 … 35.0 kW
Maximum heat input –
heating (Q max.)
30.6 kW
35.7 kW
0020230535_05 ecoFIT pure Installation and maintenance instructions
41
Appendix
VU 306/6-3 OV (HGB)
VU 356/6-3 OV (HGB)
Minimum heat input – heating (Q min.)
7.1 kW
7.2 kW
Maximum heat input – hot
water (Q max.)
35.7 kW
35.7 kW
Minimum heat input – hot
water (Q min.)
7.1 kW
7.2 kW
Technical data – General
VU 126/6-3 OV (HGB)
VU 156/6-3 OV (HGB)
VU 186/6-3 OV (HGB)
VU 256/6-3 OV (HGB)
Gas category
I2H
I2H
I2H
I2H
Diameter of the gas pipe
1/2 inch
1/2 inch
1/2 inch
1/2 inch
Diameter of the heating connections
3/4 inch
3/4 inch
3/4 inch
3/4 inch
Expansion relief valve connector
(min.)
15 mm
15 mm
15 mm
15 mm
Condensate drain pipework (min.)
21.5 mm
21.5 mm
21.5 mm
21.5 mm
G20 gas supply pressure
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
Gas flow at P max. – hot water
(G20)
1.6 m³/h
1.9 m³/h
2.7 m³/h
3.2 m³/h
Gas flow at P max. – heating mode
(G20)
1.3 m³/h
1.6 m³/h
1.9 m³/h
2.7 m³/h
Gas flow at P min. (G20)
0.480 m³/h
0.480 m³/h
0.533 m³/h
0.648 m³/h
CE number (PIN)
CE-0063CP3646
CE-0063CP3646
CE-0063CP3646
CE-0063CP3646
Flue gas mass rate in heating
mode at P min.
2.08 g/s
2.08 g/s
2.31 g/s
2.81 g/s
Flue gas mass rate in heating
mode at P max.
5.5 g/s
6.9 g/s
8.3 g/s
11.5 g/s
Flue gas mass rate in hot water
handling mode at P max.
6.9 g/s
8.3 g/s
11.6 g/s
13.8 g/s
Flue gas temperature (80 °C/60 °C)
at P max.
55 ℃
55 ℃
60 ℃
77 ℃
Flue gas temperature (80 °C/60 °C)
at P min.
55 ℃
55 ℃
55 ℃
55 ℃
Flue gas temperature (50 °C/30 °C)
at P max.
43 ℃
48 ℃
51 ℃
62 ℃
Flue gas temperature (50 °C/30 °C)
at P min.
32 ℃
32 ℃
34 ℃
35 ℃
Flue gas temperature in hot water
handling mode
71 ℃
71 ℃
69 ℃
68 ℃
Flue gas temperature when overheating
105 ℃
105 ℃
105 ℃
95 ℃
Released system types
C13, C33, C43, C53
C13, C33, C43, C53
C13, C33, C43, C53
C13, C33, C43, C53
Nominal efficiency at 80/60 °C
99.1 %
98.9 %
98.8 %
98.8 %
Nominal efficiency at 50/30 °C
104.0 %
104.0 %
104.0 %
104.0 %
Nominal efficiency at 40/30 °C
106.0 %
106.0 %
106.0 %
106.0 %
Nominal efficiency in partial load
operation (30%) at 40/30 °C
109.9 %
109.9 %
109.8 %
109.7 %
NOx class
5
5
5
5
Product dimensions, width
375 mm
375 mm
375 mm
375 mm
Product dimensions, depth
295 mm
295 mm
295 mm
295 mm
Product dimensions, height
602 mm
602 mm
602 mm
602 mm
Net weight
22 kg
22 kg
22 kg
22 kg
Weight when filled with water
26 kg
26 kg
26 kg
26 kg
42
Installation and maintenance instructions ecoFIT pure 0020230535_05
Appendix
VU 306/6-3 OV (HGB)
VU 356/6-3 OV (HGB)
Gas category
I2H
I2H
Diameter of the gas pipe
1/2 inch
1/2 inch
Diameter of the heating connections
3/4 inch
3/4 inch
Expansion relief valve connector
(min.)
15 mm
15 mm
Condensate drain pipework (min.)
21.5 mm
21.5 mm
G20 gas supply pressure
2.0 kPa
(20.0 mbar)
2.0 kPa
(20.0 mbar)
Gas flow at P max. – hot water
(G20)
3.8 m³/h
3.8 m³/h
Gas flow at P max. – heating mode
(G20)
3.2 m³/h
3.8 m³/h
Gas flow at P min. (G20)
0.756 m³/h
0.762 m³/h
CE number (PIN)
CE-0063CP3646
CE-0063CP3646
Flue gas mass rate in heating
mode at P min.
3.27 g/s
3.30 g/s
Flue gas mass rate in heating
mode at P max.
13.8 g/s
16.1 g/s
Flue gas mass rate in hot water
handling mode at P max.
16.1 g/s
16.1 g/s
Flue gas temperature (80 °C/60 °C)
at P max.
86 ℃
90 ℃
Flue gas temperature (80 °C/60 °C)
at P min.
56 ℃
56 ℃
Flue gas temperature (50 °C/30 °C)
at P max.
60 ℃
62 ℃
Flue gas temperature (50 °C/30 °C)
at P min.
37 ℃
37 ℃
Flue gas temperature in hot water
handling mode
75 ℃
75 ℃
Flue gas temperature when overheating
104 ℃
104 ℃
Released system types
C13, C33, C43, C53
C13, C33, C43, C53
Nominal efficiency at 80/60 °C
99.2 %
97.5 %
Nominal efficiency at 50/30 °C
104.0 %
100.2 %
Nominal efficiency at 40/30 °C
106.0 %
106.0 %
Nominal efficiency in partial load
operation (30%) at 40/30 °C
109.8 %
108.5 %
NOx class
5
6
Product dimensions, width
375 mm
375 mm
Product dimensions, depth
295 mm
295 mm
Product dimensions, height
602 mm
602 mm
Net weight
22 kg
23 kg
Weight when filled with water
27 kg
28 kg
VU 126/6-3 OV (HGB)
VU 156/6-3 OV (HGB)
Technical data – Electrics
Electric connection
VU 186/6-3 OV (HGB)
VU 256/6-3 OV (HGB)
230 V / 50 Hz
230 V / 50 Hz
230 V / 50 Hz
230 V / 50 Hz
T2/2A, 250V
T2/2A, 250V
T2/2A, 250V
T2/2A, 250V
Max. electrical power consumption
23 W
29 W
35 W
35 W
Standby electrical power consumption
2W
2W
2W
2W
IPX4D
IPX4D
IPX4D
IPX4D
Built-in fuse (slow-blow)
Level of protection
0020230535_05 ecoFIT pure Installation and maintenance instructions
43
Appendix
VU 306/6-3 OV (HGB)
Electric connection
VU 356/6-3 OV (HGB)
230 V / 50 Hz
230 V / 50 Hz
T2/2A, 250V
T2/2A, 250V
Max. electrical power consumption
44 W
50 W
Standby electrical power consumption
2W
2W
IPX4D
IPX4D
Built-in fuse (slow-blow)
Level of protection
44
Installation and maintenance instructions ecoFIT pure 0020230535_05
Index
Index
A
Air/flue pipe ......................................................................... 13
Air/flue pipe, installed ............................................................ 4
B
Burner anti-cycling time....................................................... 19
C
Calling up, fault memory...................................................... 20
CE label ................................................................................. 7
Check programmes ............................................................. 16
Checking the burner ............................................................ 24
Cleaning the condensate trap ............................................. 24
Cleaning the heat exchanger .............................................. 24
Clearance .............................................................................. 8
Clearing, fault memory ........................................................ 20
CO₂ content
Checking.................................................................. 19, 22
Competent person................................................................. 3
Completing inspection work ................................................ 25
Completing maintenance work ............................................ 25
Condensate discharge pipe................................................. 11
Control ................................................................................. 14
Corrosion............................................................................... 4
D
Decommissioning ................................................................ 25
Decommissioning the product ............................................. 25
Display and setting options ................................................. 15
Disposal, packaging ............................................................ 25
Disposing of the packaging ................................................. 25
Documents ............................................................................ 6
E
Electricity ............................................................................... 4
F
Fault codes.................................................................... 20, 31
Fault memory, calling up ..................................................... 20
Fault memory, deleting........................................................ 20
Fault messages ................................................................... 20
Filling the condensate trap .................................................. 17
Filling the heating installation .............................................. 18
Flue gas route ....................................................................... 4
Front casing, closed .............................................................. 4
Frost ...................................................................................... 4
G
Gas flow rate ...................................................................... 18
H
Handing over to the end user .............................................. 20
I
Identification plate ................................................................. 6
If you smell flue gas............................................................... 4
If you smell gas ..................................................................... 3
Inspection work ................................................................... 22
Installation site....................................................................... 4
Installer level ....................................................................... 15
Installer level, calling up ...................................................... 15
Installing the front casing....................................................... 9
Installing the side section ...................................................... 9
Intended use.......................................................................... 3
L
Leak-tightness ......................................................... 19, 22, 25
M
Mains connection ................................................................ 14
0020230535_05 ecoFIT pure Installation and maintenance instructions
Maintenance work ............................................................... 22
Minimum clearance ............................................................... 8
O
Operating concept ............................................................... 15
P
Power supply....................................................................... 14
Preparing the repair work .................................................... 21
Preparing, repair work ......................................................... 21
Q
Qualification........................................................................... 3
R
Regulations ........................................................................... 5
Removing the air intake pipe............................................... 23
Removing the burner........................................................... 23
Removing the flue pipe........................................................ 23
Removing the gas-air mixture unit....................................... 23
Removing the side section .................................................... 9
Replacing the burner ........................................................... 21
Replacing the heat exchanger............................................. 21
Replacing the main PCB ..................................................... 22
Resetting the burner anti-cycling time ................................. 20
S
Safety device......................................................................... 4
Schematic drawing ................................................................ 4
Setting the burner anti-cycling time ..................................... 20
Spare parts.......................................................................... 20
Status codes........................................................................ 15
Switching on the product ..................................................... 18
T
Tool ....................................................................................... 5
Transport ............................................................................... 3
Transporting .......................................................................... 7
Treating the heating water .................................................. 16
U
Unloading the box ................................................................. 7
Unpacking the product .......................................................... 7
User interface, replacing the PCB ....................................... 22
V
Voltage .................................................................................. 4
W
Wall-mounting the product .................................................... 8
Weight ................................................................................... 8
45
0020230535_05
0020230535_05
06.06.2018
Supplier
Vaillant Ltd.
Nottingham Road
Belper
Derbyshire
Telephone 0330 100 3461
info@vaillant.co.uk
www.vaillant.co.uk
DE56 1JT
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