Vaillant home combi Installation And Maintenance Instructions Manual
Installation and maintenance instructions
For the competent person
Installation and maintenance instructions
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. +49 21 91 18‑0 Fax +49 21 91 18‑28 10
info@vaillant.de www.vaillant.de
HOME
COMBI
GB, IE
Contents
Contents
1 Safety .................................................................... 4
1.1 Action-related warnings......................................... 4
1.2 Risk caused by inadequate qualifications.............. 4
1.3 Intended use ......................................................... 4
1.4 General safety information .................................... 4
1.5 Regulations (directives, laws, standards) .............. 6
2 Notes on the documentation .............................. 7
2.1 Observing other applicable documents ................. 7
2.2 Storing documents................................................. 7
2.3 Applicability of the instructions .............................. 7
3 Product description............................................. 7
3.1 Serial number ........................................................ 7
3.2 Information on the identification plate.................... 7
3.3 Functional elements: Combination unit ................. 8
3.4 CE label ................................................................. 8
4 Installation............................................................ 8
4.1 Transporting the unit.............................................. 8
4.2 Unpacking the product........................................... 8
4.3 Checking the scope of delivery.............................. 8
4.4 Dimensions............................................................ 9
4.5 Minimum clearances.............................................. 9
4.6 Clearance from combustible components ............. 9
4.7 Using the installation template............................... 9
4.8 Wall-mounting the product..................................... 9
4.9 Removing/installing the front casing.................... 10
4.10 Removing/installing the side section ................... 10
5 Installation.......................................................... 10
5.1 Checking the gas meter....................................... 11
5.2 Gas and water connections ................................. 11
5.3 Connecting the drain line for the expansion
relief valve............................................................ 11
5.4 Connecting the condensate drain pipework ........ 12
5.5 Connecting the drain cock ................................... 12
5.6 Flue gas installation ............................................. 12
5.7 Electrical installation ............................................ 14
6 Operation............................................................ 15
6.1 Using diagnostics codes ...................................... 15
6.2 Displaying the status codes ................................. 16
6.3 Using check programmes .................................... 16
7 Start-up ............................................................... 16
7.1 Carrying out the initial start-up............................. 16
7.2 Checking the factory setting ................................ 16
7.3 Checking and treating the heating water/filling
and supplementary water .................................... 17
7.4 Avoiding danger arising from insufficient water
pressure............................................................... 18
7.5 Switching on the product ..................................... 18
7.6 Filling and purging the heating installation .......... 18
7.7 Filling the condensate siphon .............................. 18
7.8 Filling the hot water circuit ................................... 18
7.9 Checking and adjusting the gas settings............. 19
7.10 Checking function and leak-tightness.................. 20
8 Adapting the unit to the heating
installation.......................................................... 20
8.1 Burner anti-cycling time ....................................... 20
8.2 Setting the pump output....................................... 21
8.3 Setting the bypass ............................................... 21
9 Adjusting the hot water temperature............... 22
9.1 Setting the hot water temperature ....................... 22
10 Handing the product over to the operator ...... 22
11 Inspection and maintenance ............................ 22
11.1 Observing inspection and maintenance
intervals ............................................................... 22
11.2 Procuring spare parts .......................................... 22
11.3 Checking the CO₂ content ................................... 22
11.4 Setting the CO₂ content ....................................... 23
11.5 Removing the gas-air mixture unit....................... 23
11.6 Cleaning the heat exchanger............................... 24
11.7 Checking the burner ............................................ 24
11.8 Checking the ignition electrode ........................... 24
11.9 Cleaning the condensate tray .............................. 24
11.10 Cleaning the condensate siphon ......................... 25
11.11 Cleaning the filter in the cold water inlet .............. 25
11.12 Cleaning the heating filter .................................... 25
11.13 Installing the gas-air mixture unit......................... 26
11.14 Draining the product ............................................ 26
11.15 Checking the pre-charge pressure of the
expansion vessel ................................................. 26
11.16 Completing inspection and maintenance work .... 26
12 Troubleshooting ................................................ 26
12.1 Rectifying faults ................................................... 26
12.2 Calling up the fault memory................................. 26
12.3 Deleting the fault memory.................................... 26
12.4 Resetting parameters to factory settings ............. 26
12.5 Preparing the repair work .................................... 26
12.6 Replacing defective components......................... 26
12.7 Completing repair work........................................ 29
13 Decommissioning the product ......................... 29
14 Customer service............................................... 29
Appendix ............................................................................ 30
A Check programmes – Overview ....................... 30
B Overview of diagnostics codes........................ 30
C Status codes – Overview .................................. 34
D Overview of fault codes .................................... 35
E Connection diagram: Combination unit .......... 38
F Connection diagram: Combination unit (35
kW) ...................................................................... 39
G Inspection and maintenance work –
Overview............................................................. 40
H Opening in the air/flue pipe .............................. 41
H.1 Positioning of the opening of a fan-supported
flue gas pipe ........................................................ 41
H.2 Text from BS 5440-1 on fan-supported flue
gas pipes ............................................................. 42
H.3 Opening of the flue pipe below eaves and
balconies.............................................................. 42
I Commissioning Checklist................................. 43
2 Installation and maintenance instructions HOME 0020224355_00
J Combustion chart.............................................. 46
K Lengths of the air/flue pipe............................... 47
L Technical data.................................................... 47
Index ................................................................................... 50
Contents
0020224355_00 HOME Installation and maintenance instructions 3
1 Safety
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
– observance of accompanying operating,
installation and servicing instructions for
the product and any other system components
– installing and fitting the product in accord-
ance with the product and system approval
– compliance with all inspection and main-
tenance conditions listed in the instructions.
Intended use also covers installation in accordance with the IP class.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.4 General safety information
1.2 Risk caused by inadequate qualifications
Assembly and disassembly, installation, startup, maintenance, repairs and decommissioning must only be carried out by a competent person who is sufficiently qualified to observe all of the instructions that come with the
product, to proceed in accordance with the
current state of the art, and to comply with
all applicable directives, standards, laws and
other regulations.
1.3 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 central heating installations and for
hot water generation.
The products referred to in these instructions
must only be installed and operated in conjunction with the flue pipe accessories listed
in other applicable documents.
Exceptions: For C63 and B23P installation
types, follow the specifications in these instructions.
Intended use includes the following:
1.4.1 Risk of death from escaping gas
What to do if you smell gas in the building:
▶ Avoid rooms that smell of gas.
▶ If possible, open doors and windows fully
and ensure adequate ventilation.
▶ Do not use naked flames (e.g. lighters,
matches).
▶ Do not smoke.
▶ Do not use any electrical switches, mains
plugs, doorbells, telephones or other communication systems in the building.
▶ If it is safe to do so, close the emergency
control valve or the main isolator.
▶ If possible, close the gas isolator cock on
the product.
▶ Warn other occupants in the building by
yelling or banging on doors or walls.
▶ Leave the building immediately and ensure
that others do not enter the building.
▶ Notify the gas supply company or National
Grid Transco +44 (0) 800 111999 by telephone from outside of the building.
1.4.2 Risk of death from escaping flue gas
If you operate the product with an empty condensate siphon, flue gas may escape into the
room air.
4 Installation and maintenance instructions HOME 0020224355_00
Safety 1
▶ In order to operate the product, ensure that
the condensate siphon is always full.
1.4.3 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.
1.4.4 Risk of death due to explosive and flammable materials
▶ Do not use or store explosive or flammable
materials (e.g. petrol, paper, paint) in the
installation room of the product.
1.4.5 Risk of death from electric shock
There is a risk of death from electric shock if
you touch live components.
Before commencing work on the product:
▶ Unplug the mains plug.
▶ Or disconnect the product from the power
supply by switching off all power supplies
(electrical partition with a contact opening
of at least 3 mm, e.g. fuse or line protection switch).
▶ Secure against being switched back on
again.
▶ Wait for at least 3 minutes until the con-
densers have discharged.
1.4.6 Risk of death due to lack of safety devices
The schematic drawings included in this document do not show all safety devices required for correct installation.
▶ Install the necessary safety devices in the
system.
▶ Observe the applicable national and inter-
national laws, standards and guidelines.
1.4.7 Risk of poisoning and burns caused by escaping hot flue gases
▶ 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.
1.4.8 Risk of being burned or scalded by hot components
▶ Only carry out work on these components
once they have cooled down.
1.4.9 Risk of injury during transport due to a high product weight.
▶ Make sure that the product is transported
by at least two people.
1.4.10 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 air/flue
pipe.
▶ Ensure that the supply of combustion air is
always free of fluorine, chlorine, sulphur,
dust, etc.
▶ Ensure that no chemical substances are
stored at the installation site.
▶ Ensure that the combustion air is not
routed through chimneys which have
previously been used with floor-standing
oil-fired boilers, or with other boilers,
which could cause soot to build up in the
chimney.
▶ 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 a combustion air supply is
ensured that is technically free of chemical
substances.
1.4.11 Risk of material damage caused by
frost
▶ Do not install the product in rooms prone
to frost.
0020224355_00 HOME Installation and maintenance instructions 5
1 Safety
1.4.12 Risk of material damage caused by using an unsuitable tool
▶ Use the correct tool to tighten or loosen
screw connections.
1.5 Regulations (directives, laws,
standards)
▶ Observe the national regulations, stand-
ards, guidelines and laws.
6 Installation and maintenance instructions HOME 0020224355_00
Notes on the documentation 2
2
1
2 Notes on the documentation
2.1 Observing other applicable documents
▶ You must observe all the operating and installation in-
structions included with the system components.
2.2 Storing documents
▶ Pass these instructions and all other applicable docu-
ments on to the system operator.
2.3 Applicability of the instructions
These instructions apply only to:
Product article number
Article number Gas Council Num-
ber
HOME COMBI 25
-A (H-GB)
HOME COMBI 30
-A (H-GB)
HOME COMBI 35
-A (H-GB)
These products are only designed for natural gas systems.
0010019930 47-044-62
0010019931 47-044-63
0010019932 47-044-64
3 Product description
3.1 Serial number
The serial number can be found on the identification plate (1)
(→ Page 7).
Stickers showing the serial number are on the back of the
electronics box (2).
3.2 Information on the identification plate
The identification plate is mounted on the underside of the
product in the factory.
The identification plate keeps record of the country in which
the product is to be installed.
Information on the
identification plate
Serial number For quality control purposes; 3rd and 4th
HOME COMBI Product description
XX, Gxx – xx mbar
(x kPa)
Cat. Approved gas category
Condensing technology
Type: Xx3(x) Permissible flue gas connections
PMS Maximum water pressure in heating
PMW Maximum water pressure in hot water
V/Hz Electric connection
W Max. electrical power consumption
IP Level of protection
Pn Nominal heat output range in heating
Pnc Nominal heat output range in heating
P Nominal heat output range in hot water
Qn Nominal heating load range in heating
Qnw Nominal heating load range in hot water
T
max.
NOx NOx class for the product
Code (DSN) Specific product code
GC no. Gas council number
Meaning
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
Gas group and gas connection pressure
as set at the factory
Efficiency class of the boiler in accordance with EC Directive 92/42/EEC
mode
handling mode
Heating mode
Hot water generation
mode
mode (condensing technology)
handling mode
mode
handling mode
Max. flow temperature
→ "CE label" section
Read the instructions.
→ "Recycling and disposal" section
Information on the
identification plate
0020224355_00 HOME Installation and maintenance instructions 7
Meaning
Barcode with serial number
4 Installation
14
12
11
10
8
9
7
5
6
4
3
2
1
16
15
18 17
13
3.3 Functional elements: Combination unit
4 Installation
4.1 Transporting the unit
Important: With regard to the regulations of 1992 concern-
ing the manual handling of loads, the unit exceeds the
weight that can be lifted by a single person.
4.1.1 General
▶ 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 pro-
tect your hands against sharp edges. Ensure that you are
carrying the load securely.
▶ If required, get somebody to assist you in this.
4.1.2 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.
4.2 Unpacking the product
1. Remove the product from its box.
1 Electronics box
2 Heating circuit expan-
sion relief valve
3 Plate heat exchanger
4 Condensate siphon
5 Flue pipe
6 Pressure sensor
7 Flue gas analysis point
8 Ignition transformer
9 Gas valve
3.4 CE label
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
The declaration of conformity can be viewed at the manufacturer's site.
10 Air intake pipe
11 Ignition electrode
12 Fan
13 Primary heat exchanger
14 Heating expansion
vessel
15 Volume flow sensor
16 Heating pump
17 Bypass
18 3-way valve
2. Remove the protective film from all of the product's
components.
4.3 Checking the scope of delivery
▶ Check that the scope of delivery is complete.
Quantity Description
1
1
1 Enclosed documentation
Heat generator
Bag with accessories
– Bag with seals
– Condensate drain hose
– Drain spigot of the expansion relief valve
– Installation template
– Hanging bracket
– Bag containing the hydraulic connections
8 Installation and maintenance instructions HOME 0020224355_00
Installation 4
A
C
B
D
A A
D
BC
A
B
4.4 Dimensions
4.6 Clearance from combustible components
It is not necessary to maintain a clearance between the
product and components made of combustible materials.
4.7 Using the installation template
▶ Use the installation template to ascertain the locations at
which you need to drill holes and make breakthroughs.
4.8 Wall-mounting the product
1. Check whether the wall has sufficient load-bearing capacity to bear the operational weight of the product.
2. Wall-mount the product as described using the adapted
fixing material provided on-site.
Conditions: The load-bearing capacity of the wall is sufficient, The fixing
material may be used for the wall
Dimensions
A B C D
740 mm 130 mm 300 mm 418 mm
4.5 Minimum clearances
Minimum clearances
A B C D D
≥ 0 mm ≥ 300 mm ≥ 300 mm ≥ 600 mm ≥ 5 mm
▶ Wall-mount the product as described.
Conditions: The load-bearing capacity of the wall is not sufficient
▶ Ensure that wall-mounting apparatus on-site has a suf-
ficient load-bearing capacity. Use individual stands or
primary walling, for example.
▶ Do not wall-mount the product if you cannot provide
wall-mounting apparatus with a sufficient load-bearing
capacity.
Note
Cabinettype casing
0020224355_00 HOME Installation and maintenance instructions 9
5 Installation
B
C
A
1
1
2x
1
A
B
C
D
4.9 Removing/installing the front casing
4.9.1 Removing the front casing
1. Undo the two screws (1).
2. Gently press the front casing backwards in the centre
so that the latching lug is released.
3. Pull the front casing forwards at the bottom edge.
4. Lift the front casing upwards from the bracket.
4.9.2 Fitting the front panel
▶ Refit the components in the reverse order.
4.10 Removing/installing the side section
4.10.1 Removing the side section
Caution.
Risk of material damage caused by mech-
anical 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.
▶ Always remove only one side section –
never both side sections at the same time.
Note
If there is sufficient lateral clearance (at least 50
mm), you can remove the side section to facilitate
maintenance or repair work.
1. Tilt the electronics box forward.
2. Hold on to the side section so that it cannot fall and
unscrew both screws (1), one from the top and one
from the bottom.
3. Tilt the side section to the outside and move it downwards and out.
4.10.2 Installing the side section
▶ Refit the components in the reverse order.
5 Installation
Danger!
Risk of explosion or scalding caused by
incorrect installation.
Stresses in the supply line can cause leaks.
▶ Make sure there is no voltage in the sup-
ply lines when they are installed.
Caution.
Risk of damage caused by contaminated
lines.
Foreign bodies, such as welding remnants,
sealing residue or dirt in the water pipes, may
cause damage to the boiler.
▶ Flush the heating installation thoroughly
prior to installation.
10 Installation and maintenance instructions HOME 0020224355_00
5.1 Checking the gas meter
1
2
3
4
5
1
▶ Make sure that the existing gas meter is capable of
passing the rate of gas supply required.
5.2 Gas and water connections
Caution.
Risk of damage caused by incorrect gas
connection installation.
Excess test pressure or operating pressure
may cause damage to the gas valve.
▶ Check the leak-tightness of the gas valve
using a maximum pressure of 1.1 kPa
(110 mbar).
Caution.
Risk of damage caused by corrosion.
If non-diffusion-tight plastic pipes are used in
the heating installation, this may cause air to
enter the heating water and corrosion of the
heat generation circuit and the boiler.
▶ If using non-diffusion-tight plastic pipes
in the heating installation, separate the
system by installing an external heat exchanger between the boiler and the heating installation.
Installation 5
1 Heating flow connec-
tion, G3/4
2 Hot water connection,
G3/4
3 Gas connection, G1/2
1. Connect the water and gas connections in accordance
with the applicable standards.
2. Purge the gas line before start-up.
3. Check whether the connections (→ Page 20) are leaktight.
5.3 Connecting the drain line for the expansion
relief valve
4 Connection for the cold
water supply line, G3/4
5 Heating return connec-
tion, G3/4
Caution.
Risk of material damage due to heat trans-
fer during soldering.
▶ Do not solder the connection pieces if
the connection pieces are screwed to the
service valves.
Note
We recommend that you provide the water pipes
to the boiler outlet and to the system with thermal
insulation.
Preliminary work
1. Check that the system volume and the volumetric capacity of the expansion vessel are the same.
▽ If the volume of the expansion vessel is insufficient
for the system.
▶ Install an additional expansion vessel in the
heating return, as close to the product as possible.
▶ Install a non-return flap at the product's outlet
(heating flow).
2. Ensure that the system has the following components:
– A stop cock in the cold water supply
– A stop cock in the gas line
– A filling and draining device in the heating installa-
tion
▶ Ensure that the pipeline is visible.
▶ The pipe must have a continuous fall and be routed to a
position so that any discharge of water, possibly boiling,
or steam cannot create any danger to persons, damage
to property or external electrical components and wiring.
◁ The components must be set up in such a way that
you can see the water flowing out.
0020224355_00 HOME Installation and maintenance instructions 11
5 Installation
1
2
3
2
1
A
B
C
5.4 Connecting the condensate drain pipework
▶ Follow the instructions listed here and observe any legal
directives and local regulations on condensate discharge.
▶ Use PVC or another material that is suitable for draining
the non-neutralised condensate.
▶ If you cannot guarantee that the materials from which
the drain lines are made are suitable, install a system for
neutralising the condensate.
▶ Ensure that the connection between the condensate
drain pipework and the drain hose is not air-tight.
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.
5.5 Connecting the drain cock
▶ Connect a hose to the drain cock (1) and guide the free
end of the hose to a suitable outflow location.
5.6 Flue gas installation
5.6.1 Replacing the connection piece for the air/flue pipe
Note
As standard, the product is equipped with a connection piece with a diameter of 60/100 mm.
▶ Connect the condensate siphon (1). Use the supplied
drain hose (2) for this.
▶ Connect condensate drain pipework (21.5 mm, not in-
cluded in the scope of delivery) (3) to the drain hose (2).
▶ During installation remove all burs 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.
▶ As with other pipe work insulate the condensate dis-
charge pipe to minimise any risk of freezing and beware
when crossing cavities that the fall is maintained and the
pipe sleeved.
You can find further information in BS 6789: "Specification
for installing and maintaining gas-fired boilers with a nominal
heat loading less than 70 kW".
1. Insert a screwdriver into the slot between the measuring
stub pipes.
2. Push in the screwdriver carefully (A).
3. Turn the connector anticlockwise (B) as far as it will go
and then remove it by pulling it upwards (C).
4. Insert a new connector. In doing so, pay attention to the
latching lugs.
5. Turn the connection piece clockwise so that it clicks into
position.
5.6.2 Installing the air/flue pipe
Caution.
Risk of poisoning due to escaping flue
gas.
Mineral-oil-based greases can damage the
seals.
▶ Instead of grease, use only water or com-
mercially available soft soap to aid installation.
12 Installation and maintenance instructions HOME 0020224355_00
50 mm/1m
5 %
1. Ensure that there is a minimum downward gradient
L
L
L
of 5% between the elbow and the terminal on the
air/flue pipe so that the condensate can flow back to the
product.
2. Install the flue gas pipe in accordance with the installation instructions that are included in the scope of delivery for the air/flue pipe.
3. You can find out which air/flue pipes may be used by
consulting the enclosed air/flue pipe installation manual.
4. Install the flue gas pipe in accordance with the installation instructions that are included in the scope of delivery for the air/flue pipe.
5.6.3 Air/flue gas system
5.6.3.1 Horizontal air/flue gas system
Installation 5
5.6.3.2 Vertical air/flue gas system
The openings in an attachment for separate lines must lead
to a 50 cm-sided square.
For each additional 90° elbow (or two 45° elbows) that is
required, the length (L) must be reduced by 1 m.
Length of the C33 type flue pipe (→ Page 47)
5.6.3.3 Air/flue gas system for header lines
The openings in an attachment for separate lines must lead
to a 50 cm-sided square.
For each additional 90° elbow (or two 45° elbows) that is
required, the length (L) must be reduced by 1 m.
Length of the C13 type flue pipe (→ Page 47)
The connections with the line are established using the accessory specially developed by the product manufacturer.
A boiler that is connected to a type C43 system must only be
connected to natural draught chimneys.
The condensate from header line systems must not drain
into the boiler.
For each additional 90° elbow (or two 45° elbows) that is
required, the length (L) must be reduced by 1 m.
Length of the C43 type flue pipe (→ Page 47)
0020224355_00 HOME Installation and maintenance instructions 13
5 Installation
B
B
A
230V
24V / eBus
30 mm max.
1
5.7 Electrical installation
Danger!
Risk of death from electric shock!
The mains connection terminals L and N remain live even if the product is switched off:
▶ Switch off the power supply.
▶ Secure the power supply against being
switched on again.
5.7.1 Opening and closing the electronics box
5.7.3 Carrying out the wiring
1. Shorten the connection cables to the appropriate
lengths to prevent them from causing damage inside
the electronics box.
2. Screw the plug to the connection cable.
3. Plug the plug into the slot provided on the PCB.
5.7.4 Establishing the power supply
1. To open the electronics box, follow the instructions in
the specified sequence.
2. To close the electronics box, follow the instructions in
reverse order.
5.7.2 Cable route
1 24-V eBUS cable route
2 230-V eBUS cable
route
1. Observe all relevant regulations.
– The applicable regulations state that the connection
must be made via an electrical partition with a contact opening of at least 3 mm at each pole.
2. Make sure that the rated voltage of the mains is 230 V.
3. 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
4. Open the electronics box.
5. Observe the routing of the power supply cable (1) in the
electronics box in order to guarantee the strain relief.
14 Installation and maintenance instructions HOME 0020224355_00
≤ 30 mm
NL
X1
230V~
RT
6. Carry out the wiring. (→ Page 14)
X2
X22
X41
–
+
24V=
RT BUS
Burner
off
X106
BUS24 V
BUSRTB.off
B
ur
ner
off
R
T
24V
=
-
+
B
U
S
1
4
32
≤ 30 mm
NL
X1
230V~
RT
7. Close the electronics box.
8. Screw the supplied plug to a three-core mains connection cable that complies with the relevant standards.
9. Connect the plug for the mains connection cable.
10. Make sure that access to the mains connection is al-
ways freely available and is not covered or blocked by
an obstruction.
5.7.5 Connecting controllers to the electronic
system
Operation 6
Conditions: If installing a multi-circuit controller.
▶ Change the pump operating mode (d.18) from Eco (in-
termittent pump operating mode) to Comfort (continuous
pump operating mode).
Conditions: If you are connecting a controller (230 V).
▶ Connect the controller to the main plug.
▶ Remove the bridge from the plug 24V=RT.
4. Close the electronics box.
6 Operation
6.1 Using diagnostics codes
You can use the parameters marked as adjustable in the
table of diagnostics codes to adapt the product to the system
and customer requirements.
Overview of diagnostics codes (→ Page 30)
6.1.1 Activating diagnostics codes
1.
Press and hold the button for 7 seconds.
◁
is shown in the display.
2.
Press the or button to set the value.
◁ The access code (96) is reserved for the competent
person.
◁ The access code (35) is reserved for the customer
service.
3.
Press the button to confirm.
◁
is shown in the display.
6.1.2 Setting a diagnostics code
1.
Press the or button to select the diagnostics
code.
2.
Press the button to confirm.
◁ The value and/or status of the diagnostics code is
shown in the display.
3.
Press the or button to set the value.
3 eBUS controller or radio
receiver unit
4 Outside temperature
sensor, wired
4. If you allow the value to flash for three seconds, the
setting is automatically confirmed.
◁
is shown in the display for 1 second.
Note
You can manually confirm the setting at any
time by pressing and holding the button
for less than 3 seconds.
1 Safety thermostat for
floor-standing heating
2 24 V controller
1. Open the electronics box.
2. Carry out the wiring. (→ Page 14)
3. Connect the individual components depending on the
type of installation.
0020224355_00 HOME Installation and maintenance instructions 15
7 Start-up
5. Proceed accordingly for all parameters that need to be
changed.
6.
Press and hold the button for 3 seconds to finish
configuring the diagnostics codes.
◁ The display switches to the basic display.
6.2 Displaying the status codes
The status codes display the product's current operating
status.
Status codes – Overview (→ Page 34)
6.2.1 Activating the status codes display
1.
Hold the button down for more than 7 seconds.
◁ S.XX is shown on the display, followed by the heat-
ing flow temperature, the internal system pressure
and the cylinder temperature (depending on the version).
2.
Press the button to exit this menu.
◁ The display switches to the basic display.
6.3 Using check programmes
By activating various check programmes, you can trigger
various special functions on the product.
Check programmes – Overview (→ Page 30)
6.3.1 Calling up the check programmes
1.
Hold the button down for more than 5 seconds.
◁ All symbols are shown in the display.
◁
is shown in the display.
2.
Press and hold the button for five seconds.
◁
3.
Press the or button to select the check
programme.
4.
Press the button to confirm.
is shown in the display.
◁ on is shown in the display and the programme
starts.
5.
Press the and buttons at the same time whilst
running a check programme.
◁ The heating water temperature and the filling pres-
sure for the heating installation are shown alternately in the display.
6.
Press the button to return to the check programme.
◁ The display shows the check programme.
7.
Press the button to finish the check programme.
◁ OFF is shown in the display.
8.
Press and hold the button for 3 seconds to finish
the check programmes.
◁ End is shown in the display.
◁ The display switches to the basic display.
Note
If you do not press any button for 15 minutes,
the current programme is automatically cancelled and the basic display is shown.
6.3.2 Displaying the pressure and temperature of the heating during a check programme
1.
Press the buttons simultaneously.
◁ Display the filling pressure in the heating installation.
◁ Display the heating flow temperature.
2.
Press the button to display the check programme
currently running.
7 Start-up
7.1 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 43) of the installation instructions
must be filled in and stored carefully along with the unit's
documentation.
▶ Carry out the initial start-up using the first-commission-
ing-checklist in the appendix.
▶ Fill out and sign the first-commissioning-checklist.
7.2 Checking the factory setting
Caution.
Risk of material damage caused by mak-
ing unauthorised settings.
▶ Never modify the factory setting of the gas
pressure regulator of the gas valve.
The product combustion is checked on-site and pre-set to
the type of gas specified on the identification plate.
▶ 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 model is not compatible with the local gas type.
▶ Do not start up the product.
Conditions: The product model is compatible with the local gas type.
▶ Proceed as described below.
16 Installation and maintenance instructions HOME 0020224355_00
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