Vaillant HOME REGULAR 12-A User manual

For the operator
Operating instructions
HOME
REGULAR
GB, IE
Operating instructions
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. [phone]‑0 Fax [phone]‑28 10
[email protected] www.vaillant.de

Contents
2Operating instructions HOME 0020224339_00
Contents
1 Safety ............................................ 3
1.1 Action-related warnings ................. 3
1.2 Intended use .................................. 3
1.3 General safety information............. 4
2 Notes on the documentation ...... 6
2.1 Observing other applicable
documents ..................................... 6
2.2 Storing documents......................... 6
2.3 Applicability of the instructions....... 6
3 Product description..................... 6
3.1 CE label ......................................... 6
3.2 Information on the identification
plate ............................................... 6
3.3 Design of the product..................... 7
3.4 Overview of the operator control
elements ........................................ 7
3.5 Operating levels............................. 8
4 Operation...................................... 8
4.1 Starting up the product .................. 8
4.2 Basic display.................................. 8
4.3 Selecting the operating mode ........ 8
4.4 Setting the hot water
temperature ................................... 9
4.5 Setting the heating flow
temperature ................................... 9
4.6 Product settings ............................. 9
4.7 Switching the product to standby
mode.............................................. 9
5 Troubleshooting ........................ 10
5.1 Detecting and rectifying faults...... 10
5.2 Fault codes in the display ............ 10
6 Care and maintenance .............. 10
6.1 Maintenance ................................ 10
6.2 Caring for the product .................. 10
6.3 Checking the condensate drain
pipework and tundish................... 10
7 Decommissioning...................... 10
7.1 Temporarily decommissioning
the product................................... 10
7.2 Permanently decommissioning
the product................................... 10
8 Recycling and disposal............. 10
9 Guarantee and customer
service ........................................ 11
9.1 Guarantee.................................... 11
9.2 Customer service......................... 11
Appendix ............................................... 12
A Adjustable values –
overview ..................................... 12
B Troubleshooting ........................ 12

Safety 1
0020224339_00 HOME Operating instructions 3
1 Safety
1.1 Action-related warnings
Classification of action-re-
lated warnings
The action-related warnings
are classified in accordance
with the severity of the pos-
sible 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 envir-
onmental damage
1.2 Intended use
There is a risk of injury or death
to the user or others, or of dam-
age to the product and other
property in the event of im-
proper use or use for which it
is not intended.
The product is intended as a
heat generator for closed heat-
ing installations and for hot wa-
ter generation.
Intended use includes the fol-
lowing:
–observance of the operating
instructions included for the
product and any other system
components
–compliance with all inspection
and maintenance conditions
listed in the instructions.
This product can be used by
children aged from 8 years
and above and persons with
reduced physical, sensory or
mental capabilities or lack of
experience and knowledge if
they have been given supervi-
sion or instruction concerning
use of the product in a safe way
and understand the hazards in-
volved. Children must not play
with the product. Cleaning and
user maintenance work must
not be carried out by children
unless they are supervised.
Any other use that is not spe-
cified in these instructions, or
use beyond that specified in this
document shall be considered
improper use. Any direct com-
mercial or industrial use is also
deemed to be improper.
Caution.
Improper use of any kind is
prohibited.

1 Safety
4Operating instructions HOME 0020224339_00
1.3 General safety
information
1.3.1 Installation by skilled
tradesmen only
The installation, inspection,
maintenance and repair of the
product, as well as the gas ratio
settings, must only be carried
out by a competent person.
1.3.2 Danger caused by
improper operation
Improper operation may present
a danger to you and others, and
cause material damage.
▶Carefully read the enclosed
instructions and all other ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
1.3.3 Risk of death due to a
blocked or leaking flue
gas pipe
What to do if you smell flue gas
in the property:
▶Open all accessible doors
and windows fully to provide
ventilation.
▶Switch off the product.
▶Inform a competent person.
1.3.4 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.
▶In order to operate the
product, ensure that the con-
densate siphon is always full.
1.3.5 Risk of death due to
explosive and flammable
materials
▶Do not use or store explosive
or flammable materials (e.g.
petrol, paper, paint) in the in-
stallation room of the product.
1.3.6 Risk of death due to lack
of safety devices
A lack of safety devices (e.g.
expansion relief valve, expan-
sion vessel) can lead to poten-
tially fatal scalding and other
injuries, e.g. due to explosions.
▶Ask a competent person
to explain how the safety
devices work and where they
are located.
1.3.7 Risk of death due
to changes to the
product or the product
environment
▶Never remove, bridge or
block the safety devices.
▶Do not alter the safety
devices in any way.
▶Do not damage or remove
any seals on components.
▶Do not make any changes:

Safety 1
0020224339_00 HOME Operating instructions 5
–The product itself
–to the gas, air, water and
electricity supplies
–to the entire flue gas install-
ation
–to the entire condensate
drain system
–to the expansion relief valve
–to the drain lines
–to constructional condi-
tions that may affect the
operational reliability of the
product
1.3.8 Risk of injury and
material damage due to
maintenance and repairs
carried out incorrectly or
not carried out at all
▶Never attempt to carry out
maintenance work or repairs
on your product yourself.
▶Faults and damage should
be immediately rectified by a
competent person.
▶Adhere to the maintenance
intervals specified.
1.3.9 Risk of corrosion
damage due to
unsuitable combustion
and room air
Sprays, solvents, chlorinated
cleaning agents, paint, adhes-
ives, 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 sub-
stances are stored at the in-
stallation site.
1.3.10 Cabinet-type casing
Enclosing the product in cab-
inet-type casing requires
compliance with the applicable
design instructions.
▶Do not fit the casing on the
product yourself.
▶If you require cabinet-type
casing for the product, consult
an approved heating special-
ist company.
1.3.11 Risk of material
damage caused by
frost
▶Ensure that the heating in-
stallation always remains in
operation during freezing con-
ditions and that all rooms are
sufficiently heated.
▶If you cannot ensure the op-
eration, have a competent
person drain the heating in-
stallation.

2 Notes on the documentation
6Operating instructions HOME 0020224339_00
2 Notes on the
documentation
2.1 Observing other applicable
documents
▶You must observe all operating instruc-
tions enclosed with the system compon-
ents.
2.2 Storing documents
▶Keep this manual and all other applic-
able documents safe for future use.
2.3 Applicability of the
instructions
These instructions apply only to:
Product article number
Article
number
Gas Coun-
cil Number
HOME REGULAR
12 -A (H-GB) 0010019925 41-044-88
HOME REGULAR
15 -A (H-GB) 0010019926 41-044-89
HOME REGULAR
18 -A (H-GB) 0010019927 41-044-90
HOME REGULAR
25 -A (H-GB) 0010019928 41-044-92
HOME REGULAR
30 -A (H-GB) 0010019929 41-044-93
3 Product description
3.1 CE label
The CE label shows that the products
comply with the basic requirements of the
applicable directives as stated on the iden-
tification plate.
The declaration of conformity can be
viewed at the manufacturer's site.
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 identi-
fication plate
Meaning
Barcode with serial number
Serial number 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
HOME REGU-
LAR
Product description
2H, G20 -
20 mbar
(2 kPa)
Factory setting for type of
gas and gas connection
pressure
Cat. Approved gas category
Condensing
technology
Efficiency class of the boiler
in accordance with EC Dir-
ective 92/42/EEC
Type: Xx3(x) Permissible flue gas connec-
tions
PMS Maximum water pressure in
heating mode
PMW Maximum water pressure in
hot water handling mode
V/Hz Electric connection
W Max. electrical power con-
sumption
IP Level of protection
Heating mode

Product description 3
0020224339_00 HOME Operating instructions 7
Information
on the identi-
fication plate
Meaning
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
→"CE label" section
Read the instructions.
→"Recycling and disposal"
section
GC no. Gas council number
3.3 Design of the product
1
1 Control elements
3.4 Overview of the operator
control elements
1
2
34
5
1 Display
2button
3button
4button
5 Fault clearance
key
3.4.1 Description of the display
1
2
3
1 Operating in-
formation
2 Active operating
mode, selecting
and confirming
the operating
mode
3 Additional in-
formation
Symbol Meaning
Burner operating correctly
–Burner on
DHW mode
–Permanently on: Hot wa-
ter activated
–Flashing: Burner on in
draw-off mode
Display flashing:
–Switching on the product
–Fault
Setting confirmed

4 Operation
8Operating instructions HOME 0020224339_00
Symbol Meaning
/Fault in the product
–Appears instead of the
basic display.
OFF –Appears when switching
the product to standby
mode.
3.4.2 Description of button
functions
Button Meaning
–Selecting the operating mode
–Confirm the operating mode
–Confirm setting
–Increase the display contrast
or –Setting the hot water temperat-
ure
–Setting the heating flow tem-
perature
–Increase or decrease the selec-
ted setting
–Increase the display contrast
–Activate the product: On/off
(standby)
–Reset the product
Adjustable values flash on the display.
You must confirm any change to a value.
Only then is the new setting saved.
If you do not press any buttons for five
seconds, the displays switches back to
the basic display.
If you do not press any buttons for one
minute, the display contrast decreases.
3.5 Operating levels
The product has two operating levels.
–Operator operating level: This provides
access to the most important informa-
tion and setting options that do not re-
quire any particular prior knowledge.
–Operating level for competent persons
only: This is protected by an access
code.
4 Operation
4.1 Starting up the product
4.1.1 Opening the isolator devices
1. Ask the competent person who in-
stalled the product to explain to you
where these isolator devices are loc-
ated and how to handle them.
2. Open the gas isolator cock fully.
3. Check that the heating installation flow
and return service valves are open, if
such service valves are installed.
4.1.2 Switching on the product
▶Switch on the product via the main
switch installed on-site.
4.2 Basic display
The operating mode is displayed on the
basic display.
You can switch back to the basic display
by:
–Not pressing any button for longer than
5 seconds.
As soon as there is a fault message, the
basic display switches to the fault code.
4.3 Selecting the operating mode
Note
The unit is always activated with
the preselected operating mode.

Operation 4
0020224339_00 HOME Operating instructions 9
▶Press repeatedly until the display
shows the required operating mode.
Symbol Operating mode
+
Heating + hot water
Heating only
Hot water only
‒No requirement
4.4 Setting the hot water
temperature
Applicability: Domestic hot water cylinder
Conditions: The temperature is controlled via the
domestic hot water cylinder's thermostat.
▶Set the hot water temperature on the
controller.
Note
If you press the or but-
ton, the display shows the
symbol.
Conditions: The temperature is controlled via the
domestic hot water cylinder's temperature sensor.
▶Set the hot water temperature on the
controller.
4.5 Setting the heating flow
temperature
Conditions: Temperature controlled by the boiler,
with heating mode activated
▶Set the heating flow temperature on the
boiler (→Page 9).
Note
The competent person may
have adjusted the maximum
possible temperature.
Conditions: Temperature controlled by the control-
ler, with heating mode activated
▶Set the maximum heating flow temper-
ature on the boiler (→Page 9).
▶Set the room temperature on the con-
troller.
◁The actual heating flow temperature
is set automatically by the controller.
Conditions: Outside temperature sensor connected
to the boiler, with heating mode activated
▶When you press the , or but-
ton.
◁The display shows the heating flow
temperature calculated by the boiler.
◁The actual heating flow temperature
is set automatically by the boiler.
4.6 Product settings
Note
The sequence in which the avail-
able settings are shown depends
on the operating mode selected.
If the Domestic hot water + Heat-
ing operating mode is selected,
the hot water temperature must be
confirmed in order to set the flow
temperature of the heating.
1. Press the or button to set the tem-
perature.
2. Press the button to confirm.
4.7 Switching the product to
standby mode
▶Press the button for less than three
seconds.
◁Once the requirement currently in
use has finished, the display will
show OFF and go out.
◁The product is now in standby mode.
◁The product's frost protection func-
tion is activated.

5 Troubleshooting
10 Operating instructions HOME 0020224339_00
◁The main power supply is not inter-
rupted. The product continues to be
supplied with power.
5 Troubleshooting
5.1 Detecting and rectifying faults
▶If problems occur whilst operating the
product, you can carry out certain self-
checks with the aid of the table in the
appendix.
Troubleshooting (→Page 12)
▶If the product still does not function
without problems after the checks have
been carried out using the table, con-
tact your competent person to rectify
the problem.
5.2 Fault codes in the display
Fault codes have priority over all other dis-
plays. If several faults occur at the same
time, the corresponding codes are dis-
played alternately for two seconds each.
▶If your product displays a fault code
(F.xx), contact a competent person.
6 Care and maintenance
6.1 Maintenance
An annual inspection of the product carried
out by a competent person is a prerequis-
ite for ensuring that the product is perman-
ently ready and safe for operation, reliable,
and has a long working life.
6.2 Caring for the product
Caution.
Risk of material damage
caused by unsuitable clean-
ing agents.
▶Do not use sprays, scouring
agents, detergents, solvents
or cleaning agents that con-
tain chlorine.
▶Clean the casing with a damp cloth and
a little solvent-free soap.
6.3 Checking the condensate
drain pipework and tundish
The condensate drain pipework and tun-
dish must always be penetrable.
▶Regularly check the condensate drain
pipework and tundish for faults and,
particularly, for blockages.
You must not be able to see or feel any
obstructions in the condensate drain pipe-
work and tundish.
▶If you notice a fault, have it rectified by
a competent person.
7 Decommissioning
7.1 Temporarily decommissioning
the product
▶Temporarily decommission the product
only if there is no risk of frost.
▶Switch off the product via the main
switch provided on-site.
◁The display goes out.
▶When decommissioning the product for
an extended period (e.g. holiday), also
close the gas isolator cock.
7.2 Permanently
decommissioning the product
▶Have a competent person permanently
decommission the product.
8 Recycling and disposal
▶The competent person who installed
your product is responsible for the dis-
posal of the packaging.
If the product is identified with this
symbol: