Our compliments for having chosen a top-quality Immergas product, able to assure well-being and safety for a long period of time.As an Immergas customer
you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your boiler. Read the following pages carefully: you
will be able to draw useful suggestions regarding the correct use of the appliance, the respect of which, will conrm your satisfaction for the Immergas product.
Contact our area authorised aer-sales centre as soon as possible to request commissioning. Our technician will verify the correct functioning conditions; he
will perform the necessary calibrations and will demonstrate the correct use of the generator.
For assistance and scheduled maintenance contact Authorised Immergas Aer-Sales centres: they have original spare parts and are specically trained directly
by the manufacturer.
General recommendations
All Immergas products are protected with suitable transport packaging.
e material must be stored in dry environments protected against bad weather.
e instruction book is an integral and essential part of the product and must be consigned to the new user also in the case of transfer or succession of ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instructions manual provides technical information for installing Immergas boilers. As for the other issues related to boiler installation (e.g. safety in the work
site, environment protection, injury prevention), it is necessary to comply with the provisions specied in the regulations in force and principles of good practice.
In compliance with legislation in force, the systems must be designed by qualied professionals, within the dimensional limits established by the Law. Installation
and maintenance must be performed in compliance with the regulations in force, according to the manufacturer's instructions and by professionally qualied
sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law.
Improper installation or assembly of the Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to people, animals
and objects. Read the instructions provided with the product carefully to ensure a proper installation.
Maintenance must be carried out by skilled technical sta. e Immergas Authorised Aer-sales Service represents a guarantee of qualications and
professionalism.
e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially
dangerous.
If errors occur during installation, operation and maintenance, due to non compliance with technical laws in force, standards or instructions contained in this
book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages and the
appliance warranty is invalidated.
For further information regarding legislative and statutory provisions relative to the installation of gas heat generators, consult the Immergas site at the
following address: www.immergas.com
CE DECLARATION OF CONFORMITY
(according to ISO/IEC 17050-1)
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE) whose design, manufacturing, and aer sale assistance
processes comply with the requirements of standard UNI EN ISO 9001:2008,
e boiler model VICTRIX 12X - 20X TT 2 ErP complies with European Directives and Delegated European Regulations listed below:
“Eco-design” Directive 2009/125/EC, “Energy labelling” Directive 2010/30/EC, EU Regulation 811/2013, EU Regulation 813/2013, “Gas Appliance” Directive 2009/142/EC, “Electromagnetic Compatibility” Directive 2004/108/EC, “Performance” Directive 92/42/EC and “Low Voltage” Directive 2006/95/EC.
Immergas S.p.A. declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial
documents without prior notice.
DECLARES that:
Mauro Guareschi
Research & Development Director
Signature:
INDEX
USER page INSTALLER pageMAINTENANCE TECHNICIAN page
3.28 Parameters for lling in the assembly sheet. .44
BOILER INSTALLATION
1
1.1 INSTALLATION
RECOMMENDATIONS.
e Victrix 12X-20X TT 2 ErP boiler was designed for wall mounted installation only; for
heating and production of domestic hot water
for domestic use and similar purposes.
e place of installation of the appliance and
relative Immergas accessories must have suitable
features (technical and structural) such to allow
(always in safety, efficiency and comfortable
conditions):
- installation (according to the provisions of the
technical legislation and technical regulations);
- maintenance operations (including scheduled,
periodic, routine and special maintenance);
- removal (to outdoors in the place for loading
and transporting the appliances and components) as well as their eventual replacement
with appliances and/or equivalent components.
e wall surface must be smooth, without any
protrusions or recesses enabling access to the
rear part. ey are not designed to be installed
on plinths or oors (Fig. 1-1).
By varying the type of installation the classication of the boiler also varies, precisely:
- Type B23 or B53 boiler if installed using the
relevant terminal for air intake directly from
the room in which the boiler has been installed.
- Type C boiler if installed using concentric
pipes or other types of pipes envisioned for
sealed chamber boilers for air intake and expulsion of ue gas.
Only professionally enabled companies are
authorised to install Immergas gas appliances.
Installation must be carried out according to
regulation standards, current legislation and in
compliance with local technical regulations and
the required technical procedures.
Before installing the appliance, ensure that it is
delivered in perfect condition; if in doubt, contact
the supplier immediately. Packing materials (staples, nails, plastic bags, polystyrene foam, etc.)
constitute a hazard and must be kept out of the
reach of children. If the appliance is installed inside or between cabinets, ensure sucient space
for normal servicing; therefore it is advisable to
leave clearance of at least 3 cm between the boiler
casing and the vertical sides of the cabinet. Leave
adequate space above the boiler for possible water
and ue removal connections. Keep all ammable objects away from the appliance (paper, rags,
plastic, polystyrene, etc.).
Do not place household appliances underneath
the boiler as they could be damaged if the safety
valve intervenes, if the drain trap is blocked, or
if there are leaks from the hydraulic connections; otherwise, the manufacturer cannot be
held responsible for any damage caused to the
household appliances.
For the aforementioned reasons, we recommend
not placing furnishings, furniture, etc. under
the boiler.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o immediately
and contact an authorised company (e.g. the
Immergas Technical Assistance centre, which
has specically trained sta and original spare
parts). Do not attempt to modify or repair the
appliance alone.
Failure to comply with the above implies personal
responsibility and invalidates the warranty.
• Installation regulations:
- this boiler can be installed outdoors in a
partially protected area. A partially protected area is one in which the appliance is not
exposed to the direct action of the weather
(rain, snow, hail, etc..).
is type of installation is only possible when
permitted by the laws in force in the appliance’s
country of destination.
- Installation in places with a re risk is prohibited (for example: garages, closed parking
stalls), gas appliances and relative ue ducts,
ue exhaust pipes and combustion air intake
pipes.
- Installation is prohibited on the vertical
projection of cooking hobs.
- Installation is also prohibited in places/environments that constitute common parts of
oce condominiums such as stairs, cellars,
entrance halls, attics, los, escape routes,
etc. if they are not located inside technical
compartments under the responsibility of
each individual building and only accessible
to the user (for the features of the technical
compartments, see the technical standards in
force).
Attention: wall mounting of the boiler must
guarantee stable and ecient support for the
generator
e plugs (standard supply) are only to be used
to x the appliance to the wall; they only ensure
adequate support if inserted correctly (according
to technical standards) in walls made of solid or
semi-hollow brick or block. In the case of walls
made from hollow brick or block, partitions with
limited static properties, or in any case walls
other than those indicated, a static test must be
carried out to ensure adequate support.
ese boilers are used to heat water to below
boiling temperature in atmospheric pressure.
ey must be connected to a central heating
system and hot water circuit suited to their
performance and capacity.
1-1
YES
SI
NO
NO
INSTALLERUSER
MAINTENANCE TECHNICIAN
5
1.2 MAIN DIMENSIONS.
INSTALLERUSER
1-2
Key:
V - Electrical connection
G - Gas supply
RU - Storage tank unit return (optional)
MU - Storage tank unit ow (optional)
RR - System lling
SC - Condensate drain (minimum internal
diameter 13 mm Ø)
R - System return
M - System ow
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -5°C. e boiler comes
standard with an anti-freeze function that activates the pump and burner when the system
water temperature in the boiler falls below 4°C.
In these conditions the boiler is protected against
freezing to an ambient temperature of -5°C.
Minimum temperature -15°C. In the event the
boiler is installed in a place where the temperature falls below -5°C, the appliance can freeze.
To prevent the risk of freezing follow the instructions below:
- protect the central heating circuit from freezing
by inserting a good-quality antifreeze liquid
into this circuit, which is specially suited for
central heating systems and which is manufacturer guaranteed not to cause damage to
the heat exchanger or other components of
the boiler. e antifreeze liquid must not be
harmful to one's health. e instructions of the
manufacturer of this liquid must be followed
MAINTENANCE TECHNICIAN
scrupulously regarding the percentage necessary with respect to the minimum temperature
at which the system must be kept. An aqueous
solution must be made with potential pollution
class of water 2.
e materials used for the central heating circuit
of Immergas boilers withstand ethylene and
propylene glycol based antifreeze liquids (if the
mixtures are prepared perfectly).
For life and possible disposal, follow the sup-
plier's instructions.
- Protect the domestic hot water circuit against
freezing by using an accessory that is supplied
on request (anti-freeze kit) comprising two
electric heating elements, the relevant cables
and a control thermostat (carefully read the
installation instructions contained in the accessory kit pack).
In these conditions the boiler is protected against
freezing to temperature of -15°C.
Boiler antifreeze protection (both -5°C and -15°C)
is thus ensured only if:
- the boiler is correctly connected to gas and electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in “o” mode;
- the boiler is not in anomaly conditions (par. 2.5);
- the essential components of the boiler and/or
antifreeze kit are not faulty.
e warranty does not cover damage due to interruption of the electrical power supply and failure
to comply with that stated on the previous page.
NOTE: if the boiler is installed in places where
the temperature falls below 0°C the domestic
hot water and central heating attachment pipes
must be insulated.
Height
(mm)
748440280
GASDOMESTICSYSTEM
GRRRM
3/4”1/2”3/4”3/4”
Width (mm) Depth (mm)
CONNECTIONS
6
1.4 BOILER CONNECTION UNIT.
e connection unit, which is composed of all the
required accessories to connect the appliance's
hydraulic and gas system, is furnished as an
optional kit. Execute connections as indicated
in the relative instructions sheet by using the
connections represented in g. 1-3.
1.5 GAS CONNECTION APPLIANCE
CATEGORY II
Our boilers are designed to operate with methane
gas (G20) and LPG. Supply pipes must be the
same as or larger than the 3/4”G boiler tting.
Before connecting the gas line, carefully clean
inside all the fuel feed system pipes to remove
any residue that could impair boiler eciency.
Also make sure the gas corresponds to that for
which the boiler is prepared (see boiler data name
plate). If dierent, the appliance must be converted for operation with the other type of gas (see
converting appliance for other gas types). e
dynamic gas supply (methane or LPG) pressure
must also be checked according to the type used
in the boiler, which must comply with the technical standards in force, as insucient levels can
reduce generator output and cause malfunctions.
Ensure correct gas cock connection. e gas supply pipe must be suitably dimensioned according
to current regulations in order to guarantee correct gas ow rate to the burner even in conditions
of maximum generator output and to guarantee
appliance eciency (technical specications).
e coupling system must conform to technical
standards in force.
Fuel gas quality. e appliance was designed to
operate with combustible gas free of impurities;
otherwise it is advisable to fit special filters
upstream of the appliance to restore the purity
of the fuel.
Storage tanks (in case of supply from LPG
depot).
2H3/P
.
- New LPG storage tanks may contain residual
inert gases (nitrogen) that degrade the mixture
delivered to the appliance casing functioning
anomalies.
- Due to the composition of the LPG mixture,
layering of the mixture components may occur
during the period of storage in the tanks. is
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
1.6 HYDRAULIC CONNECTION.
Attention: in order not to void the condensa-
tion module warranty, before making the boiler
connections, carefully wash the heating system
(pipes, radiators, etc.) with special pickling or
descaling products to remove any deposits that
could compromise correct boiler operation.
A chemical treatment of the thermal system
water is required, in compliance with the technical standards in force, in order to protect the
system and the appliance from deposits (e.g.,
lime scale), slurry or other hazardous deposits.
In order not to void the heat exchanger warranty,
you are required to comply with what has been
prescribed in paragraph 1.21.
Water connections must be made in a rational
way using the couplings on the boiler template.
Attention: Immergas declines all liability in the
event of damage caused by the inclusion of automatic lling that is not its own brand.
In order to meet the system requirements established by the regulations in force in relation to
the pollution of drinking water, we recommend
installing the IMMERGAS anti-backow kit to be
used upstream of the cold water inlet connection
of the boiler. It is also recommended that the heat
transfer uid (e.g. water + glycol) entered in the
primary circuit of the boiler (heating circuit),
complies with the local regulations in force.
Attention: to preserve the duration and the eciency features of the appliance, in the presence
of water whose features can lead to the deposit of
scale, installation of the “polyphosphate dispenser”
kit is recommended.
3-bar safety valve. Discharge of the safety valve
has been conveyed to the condensate drain trap.
Consequently, in the event of valve intervention,
the discharged liquid will end up in the sewer
system through the drainpipe of the condensate
drain trap.
e appliance has anyhow been provided with
a drain tting (ref. 3 g. 1-3) with a relative cap
to check the presence of liquid in the drainage
circuit and to check the 3-bar safety valve.
Condensate drain. To drain the condensate
produced by the appliance, it is necessary to
connect to the drainage system by means of
acid condensate resistant pipes, with an internal
Ø of at least 13 mm. e system connecting the
appliance to the drainage system must be carried
out in such a way as to prevent freezing of the
liquid contained in it. Before appliance ignition,
ensure that the condensate can be correctly removed. Aer rst ignition, check that the drain
trap is lled with condensate (para. 1.22). Also,
comply with national and local regulations on
discharging waste waters.
INSTALLERUSER
1-3
Key:
V - Electrical connection
1 - System lling valve
2 - System draining valve
3 - 3-bar safety valve drain tting signal
MAINTENANCE TECHNICIAN
3
2
1
V
7
1.7 ELECTRIC CONNECTION.
e appliance has an IPX5D protection degree,
electrical safety of the appliance is reached only
when it is connected properly to an ecient
earthing system as specied by current safety
standards.
Attention: Immergas S.p.A. declines any responsibility for damage or physical injury caused by
failure to connect the boiler to an ecient earth
system or failure to comply with the reference
standards.
INSTALLERUSER
• Open the control panel connections compartment (Fig. 1-4).
To carry out electrical connections, all you have
to do is open the connections compartment as
follows.
- Remove the front panel (Fig. 3-15b).
- Remove the cover (b g. 1-4).
1) Loosen the two screws (a).
2) Press the two hooks on the cover (b).
3) Remove the cover (b) from the control
panel (c).
- At this point, it is possible to access the terminal
board (d).
Also ensure that the electrical installation corresponds to maximum absorbed power specications as shown on the boiler data nameplate.
Boilers are supplied complete with an “X” type
power cable without plug. e power supply
cable must be connected to a 230V ±10% /
50Hz mains supply respecting L-N polarity and
earth connection; , this network must also
have a multi-pole circuit breaker with class III
over-voltage category.
To protect from possible dispersions of DC
voltage one must provide a type A dierential
safety device.
When replacing the power supply cable, contact a
qualied company (e.g. the Immergas Authorised
Aer-Sales Technical Assistance Service). e
power cable must be laid as shown (Fig. 1-3).
In the event of mains fuse replacement on the
P.C.B., use a 3.15A quick-blow fuse. For the
main power supply to the appliance, never use
adapters, multiple sockets or extension leads.
N.B.: connect terminals 36 and 37 to electrically
connect the boiler to the storage tank unit, eliminating resistance R8 in the boiler (Fig. 3-2).
Installation with system operating at direct
low temperature. e boiler can directly supply
a low-temperature system by setting the ow
temperature adjustment range “t0” and “t1”
(Par. 3.11). In this situation it is good practice
to insert a relevant safety kit (optional) made up
from a thermostat (with adjustable temperature).
Execute connection to terminal boards 14 and 15,
eliminating jumper X70 (Fig. 3-2). e thermostat must be positioned on the system ow pipe
at a distance of at least 2 metres from the boiler.
1.8 REMOTE CONTROLS AND
ROOM CHRONOTHERMOSTATS
OPTIONAL.
e boiler is prepared for the application of room
chrono-thermostats or remote controls, which
are available as optional kits (Fig. 1-5).
All Immergas chrono-thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the accessory kit.
• On/O Immergas digital chrono-thermostat.
e chrono-thermostat allows:
- set two room temperature value: one for
daytime (comfort temperature) and one for
night-time (reduced temperature);
- set a weekly program with four daily switch
on and switch o times;
- select the required operating mode from the
various possible alternatives:
• manual operation (with adjustable tempera-
ture).
• automatic operation (with set programme).
• forced automatic operation (momentarily
changing the temperature of the automatic
programme).
e chrono-thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto Remote Control De-
vice V2 (CARV2) with climate chrono-thermostat
function. In addition to the functions described
in the previous point, the CARV2 panel enables
the user to control all the important information regarding operation of the appliance and
the heating system with the opportunity to
easily intervene on the previously set parameters, without having to go to where the appliance is installed. e panel is provided with
self-diagnosis to display any boiler functioning
anomalies. The climate chrono-thermostat
incorporated into the remote panel enables
the system ow temperature to be adjusted to
the actual needs of the room being heated, in
order to obtain the desired room temperature
with extreme precision and therefore with
evident saving in running costs. e CARV2 is
fed directly by the boiler by means of the same 2
wires used for the transmission of data between
the boiler and device.
Important: if the system is subdivided into zones
using the relevant kit, the CARV2 must be used
with its climate thermostat function disabled, i.e.
it must be set to On/O mode.
Comando Amico Remoto Remote Control V2
or On/O chrono-thermostat electrical connections (Optional). e operations described
below must be performed aer having removed
the voltage from the appliance. Any thermostat
or On/O environment chrono-thermostat must
be connected to clamps 40 and 41 eliminating
jumper X40 (Fig. 3-2). Make sure that the On/
O thermostat contact is of the “clean” type, i.e.
independent of the mains voltage, otherwise the
P.C.B. would be damaged. Any Comando Amico
Remoto Remote Control V2 must be connected to
clamps 44 and 41 eliminating jumper X40 on the
P.C:B., paying attention not to invert the polarity
in the connections (Fig. 3-2).
Important: if the Comando Amico Remoto Remote Control V2 or any other On/Off
chrono-thermostat is used, arrange two separate
lines in compliance with current regulations
regarding electrical systems. No boiler pipes
must ever be used to earth the electric system or
telephone lines. Ensure elimination of this risk
before making the boiler electrical connections.
MAINTENANCE TECHNICIAN
c
2
2
1
1
a
a
3
b
d
1-4
8
1-5
1.9 EXTERNAL TEMPERATURE PROBE
OPTIONAL.
e boiler is designed for the application of the
external temperature probe (Fig. 1-6), which is
available as an optional kit. Refer to the relative
instruction sheet for positioning of the external
probe.
e probe can be connected directly to the boiler
electrical system and allows the max. system ow
temperature to be automatically decreased when
the external temperature increases, in order to
adjust the heat supplied to the system according
to the change in external temperature. e external probe always operates when connected,
regardless of the presence or type of room
chrono-thermostat used and can work in combination with Immergas chrono-thermostats. e
correlation between system ow temperature
and external temperature is determined by the
position of the central heating selector switch on
the boiler control panel (or on the CARV2 control
panel if connected to the boiler) according to
the curves shown in the diagram (Fig. 1-7). e
electric connection of the external probe must be
made on clamps 38 and 39 on the terminal board
in the boiler control panel (Fig. 3-2).
INSTALLERUSER
31
45
58
Correction law of the ow temperature depending on the external temperature
and user adjustments of the central heating temperature.
1-61-7
EXTERNAL PROBE
Position of the central heating
temperature user adjustment
9
MAINTENANCE TECHNICIAN
1.10 IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the boilers regarding the installation of
air intake terminals and ue exhaust, which are
fundamental for boiler operation.
Attention: the boiler must be installed exclusively with an original Immergas “Green
Range” inspectionable air intake device and
fumes extraction system made of plastic, as
required by the regulations in force.
e plastic pipes cannot be installed outdoors,
INSTALLERUSER
for tracts longer than 40 cm, without suitable
protection from UV rays and other atmospheric agents.
is system can be identied by an identication mark and special distinctive marking
bearing the note: “only for condensing boilers”.
• Resistance factors and equivalent lengths. Each
ue component has a Resistance Factor based
on experimental tests and specied in the table
below. e Resistance Factor for individual
components is independent from the type of
boiler on which it is installed and has a dimensionless size. It is however, conditioned by the
temperature of the uids that pass through the
pipe and therefore, varies according to applications for air intake or ue exhaust. Each single
component has a resistance corresponding to
a certain length in metres of pipe of the same
diameter; the so-called equivalent length,
can be obtained from the ratio between the
relative Resistance Factors. All boilers have an
experimentally obtainable maximum Resistance
Factor equal to 100. e maximum Resistance
Factor allowed corresponds to the resistance
encountered with the maximum allowed pipe
length for each type of Terminal Kit. This
information allows calculations to be made to
verify the possibility of setting up various ue
congurations.
• Positioning the gaskets (black) for “green
range” ue systems. Position the gasket cor-
rectly (for bends and extensions) (Fig. 1-8):
- gasket (A) with notches, to use for bends;
- gasket (B) without notches, to use for exten-
sions;
N.B.: if necessary, to ease the push-fitting,
spread the elements with commonly-used talc.
• Coupling extension pipes and concentric
elbows. To install push-tting extensions with
other elements of the ue, proceed as follows:
Install the concentric pipe or elbow with the
male side (smooth) on the female side (with lip
seal) to the end stop on the previously installed
element in order to ensure sealing eciency of
the coupling.
Attention: if the exhaust terminal and/or
concentric extension pipe needs shortening,
consider that the internal duct must always
protrude by 5 mm with respect to the external
duct.
•N.B.: for safety purposes, do not obstruct the
boiler intake/exhaust terminal, even temporaril y.
•N.B.: when installing horizontal pipes, a min-
imum inclination of 3% must be maintained
and a section clip with pin must be installed
every 3 metres.
1.11 TABLES OF RESISTANCE FACTORS
AND EQUIVALENT LENGTHS.
TYPE OF DUCT
Concentric pipe Ø 80/125 m 1
1-8
Resistance
Factor
(R)
2.1
(A)
(B)
Equivalent length
in m of concentric
pipe Ø 80/125
1
MAINTENANCE TECHNICIAN
Concentric bend 90°Ø 80/125
Concentric bend 45°Ø 80/125
Terminal complete with concentric
horizontal intake-exhaust Ø 80/125
Terminal complete with concentric
vertical intake-exhaust Ø 80/125
Concentric bend 90°Ø 80/125 with
inspection
Stub pipe with inspection Ø 80/125
10
3.0
2.1
2.8
3.6
3.4
3.4
1.4
1
1.3
1.7
1.6
1.6
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent length
in m of concentric
pipe Ø 60/100
Equivalent length
in metres of pipe
Ø 80
Equivalent length
in metres of pipe
Ø 60
Equivalent length
in m of concentric
pipe Ø 80/125
Concentric pipe Ø 60/100
m 1
Concentric bend 90°Ø
60/100
Concentric bend 45°Ø
60/100
Terminal complete with
concentric horizontal
intake-exhaust Ø 60/100
Terminal complete with
exhaust
vertical Ø 60 for ducting
Intake and
Exhaust 6.4
Intake and
Exhaust 8.2
Intake and
Exhaust 6.4
Intake and
Exhaust 15
Intake and
Exhaust 10
Intake and
Exhaust 16.3
Intake and
Exhaust 9
Intake 0.87m 0.1Intake m 1.0
Exhaust 1.2m 0.2Exhaust m 1.0
Intake 3m 0.5Intake m 3.4Exhaust m 0.9m 1.4
Intake 2.2m 0.35Intake m 2.5
Exhaust 1.9m 0.3Exhaust m 1.6
Intake 1.9m 0.3Intake m 2.2
Exhaust 2.6m 0.4Exhaust m 2.1
Intake 1.2m 0.2Intake m 1.4
Exhaust 1.6m 0.25Exhaust m 1.3
Exhaust 3.5m 0.55
Intake and
Exhaust 2.6
Exhaust 12.2m 1.9
m 1
m 1.3
m 1
m 2.3
m 1.5
m 2.5
m 1.4
m 0.4
Intake m 7.3
Exhaust m 5.3
Intake m 9.4
Exhaust m 6.8
Intake m 7.3
Exhaust m 5.3
Intake m 17.2
Exhaust m 12.5
Intake m 11.5
Exhaust m 8.3
Intake m 18.7
Exhaust m 13.6
Intake m 10.3
Exhaust m 7.5
Intake 3.8
Exhaust 2.7
Intake 4.0
Exhaust 2.9
Intake m 3.0
Exhaust m 2.1
Intake m 14
Exhaust m 10.1
Exhaust m 1.9m 3.0
Exhaust m 2.5m 3.9
Exhaust m 1.9m 3.0
Exhaust m 4.5m 7.1
Exhaust m 3.0m 4.7
Exhaust m 4.9m 7.7
Exhaust m 2.7m 4.3
m 0.4
Exhaust m 0.4
m 0.5
m 1
Exhaust m 0.6
m 0.9
m 0.9
Exhaust m 0.8
m 1.2
m 0.5
Exhaust m 0.5
0.7
Exhaust m 1.0m 1.5
Exhaust m 1.1m 1.6
Exhaust m 0.8m 1.2
Exhaust m 3.7m 5.8
INSTALLERUSER
MAINTENANCE TECHNICIAN
11
1.12 OUTDOOR INSTALLATION IN A
PARTIALLY PROTECTED AREA.
N.B.: a partially protected area is one in which the
appliance is not exposed to the direct action of the
weather (rain, snow, hail, etc..)..
is type of installation is only possible when
permitted by the laws in force in the appliance’s
country of destination.
• Conguration type B, open chamber and
forced draught.
Using the special coverage kit one can achieve
INSTALLERUSER
direct air intake (Fig. 1-9) and fumes exhaust in
a single ue or directly outside. In this conguration it is possible to install the boiler in a partially
protected place. In this conguration the boiler
is classied as type B23.
With this conguration:
- air intake takes place directly from the envi-
ronment in which the appliance is installed
(outside);
- the fumes exhaust must be connected to its own
single ue (B23) or ducted directly outside via
a vertical terminal for direct exhaust (B53) or
via an Immergas ducting system (B53).
The technical regulations in force must be
respected.
•Coverage kit assembly (Fig. 1-11). Remove
the two plugs and the gaskets present from
the two lateral holes with respect to the central
one. Now cover the right intake hole using the
relevant plate, xing it onto the le side using
the 2 previously-removed screws. Install the
Ø 80 outlet ange on the central hole of the
boiler, taking care to insert the gasket supplied
with the kit and tighten by means of the screws
provided. Install the upper cover, xing it using
the 4 screws present in the kit, positioning the
relevant gaskets. Engage the 90° Ø 80 bend
with the male end (smooth) in the female end
(with lip seal) of the Ø 80 ange unit until it
stops. Introduce the gasket, making it run along
the bend. Fix it using the sheet steel plate and
tighten by means of the straps present in the
kit, making sure to block the 4 gasket aps. Fit
the male end (smooth) of the exhaust terminal
into the the female end of the bend 90° Ø 80,
making sure that the relevant wall sealing
plate is already tted; this will ensure hold and
joining of the elements making up the kit.
Max. length of exhaust duct. e ue pipe (both
vertical or horizontal) can be extended to a max. length of 30 linear metres.
• Coupling of extension pipes. To install push-tting extensions with other elements of the ue,
proceed as follows: Couple the pipe or elbow
with the male side (smooth) in the female side
(with lip seal) to the end stop on the previously
installed element. This will ensure sealing
eciency of the coupling.
• Conguration without cover kit in a partially
protected location (type C boiler)
By leaving the side plugs tted it is possible
to install the appliance externally without the
cover kit. Installation takes place using the
Ø60/100, Ø 80/125 and separator Ø 80/80
concentric intake/ exhaust kits. Refer to the
paragraph relative to indoor installation. In
this conguration the upper cover kit guarantees additional protection for the boiler. It is
recommended but not compulsory.
Type C configuration, sealed chamber and
fan assisted.
Horizontal intake-exhaust kit Ø 60/100 Kit
assembly (Fig. 1-13): install the bend with ange
(2) on the central hole of the boiler, positioning
gasket (1) with the circular projections downwards in contact with the boiler flange, and
tighten using the screws present in the kit. Fit
the Ø 60/100 (3) concentric terminal pipe with
the male side (smooth) to the female side of the
bend (2) up to the end stop; making sure that the
internal and external wall sealing plate have been
tted, this will ensure sealing and joining of the
elements making up the kit.
• Extensions for Ø 60/100 horizontal kit (Fig.
1-14). e kit with this conguration can be
extended up to a max. 12.9 horizontal m in-
cluding the terminal with grid and excluding
the concentric bend leaving the boiler. is
conguration corresponds to a resistance factor
of 100. In this case the special extensions must
be requested.
Immergas also provides a Ø 60/100 simplied
terminal, which in combination with its extension kits allows you to reach a maximum
extension of 11.9 metres.
• External grid. N.B.: for proper system opera-
tion the terminal with grid must be installed
correctly ensuring that, the "high" indication
on the terminal is observed during installation.
Horizontal intake-exhaust kit Ø 80/125 Kit
assembly (Fig. 1-15): to install the kit Ø 80/125
one must use the anged adapter kit in order
to install the ue system Ø 80/125. Install the
anged adaptor (2) on the central hole of the
boiler, positioning gasket (1) with the circular
projections downwards in contact with the boiler
ange, and tighten using the screws contained in
the kit. Engage the bend (3) with the male side
(smooth) to the end stop on the adapter (1). Fit
the Ø 80/125 (5) concentric terminal pipe with
the male side (smooth) to the female side of the
bend (4) (with lip seals) up to the end top; making
sure that the internal (6) and external wall sealing
plate (7) have been tted, this will ensure sealing
and joining of the elements making up the kit.
• Extensions for horizontal kit Ø 80/125 (Fig.
1-16). e kit with this conguration can be
extended up to a max. length of 32 m, including the terminal with grid and excluding the
concentric bend leaving the boiler. If additional components are assembled, the length
equivalent to the maximum allowed must be
subtracted. In this case the special extensions
must be requested.
e Kit Ø 80/125 includes:
N° 1 - Concentric bend Ø 80/125 a
87° (3)
N° 1 - Int./exhaust concentric termi-
nal Ø 80/125 (4)
N° 1 - Internal wall sealing plate (5)
N° 1 - External wall sealing plate (6)
e remaining kit components must
not be used
C
13
1-131-14
C
13
C
C
13
MAINTENANCE TECHNICIAN
13
1-16
13
1.14 CONCENTRIC VERTICAL KIT
INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Concentric vertical intake and exhaust kit. is
vertical terminal is connected directly to the outside of the building for air intake and ue exhaust.
N.B.: the vertical kit with aluminium tile enables
installation on terraces and roofs with a maximum slope of 45% (approx 25°) and the height
between the terminal cap and half-shell (374 mm
INSTALLERUSER
for Ø 60/100 and 260 mm for Ø 80/125) must
always be observed.
Vertical kit with aluminium tile Ø 60/100.
Kit assembly (Fig. 1-17): install the concentric
ange (2) on the central hole of the boiler, positioning gasket (1) with the circular projections
downwards in contact with the boiler ange, and
tighten using the screws contained in the kit.
Installation of the fake aluminium tile: replace
the tiles with the aluminium sheet (4), shaping
it to ensure that rainwater runs o. Position the
xed half-shell (6) on the aluminium tile and insert the intake-exhaust pipe (5). Fit the Ø 60/100
(3) concentric terminal pipe with the male end
(5) (smooth) into the ange (2) up to the stop;
making sure that the wall sealing plate has been
tted (3), this will ensure sealing and joining of
the elements making up the kit.
• Extensions for vertical kit Ø 60/100 (Fig. 1-18).
e kit with this conguration can be extended
to a max. straight vertical length of 14.4 m,
including the terminal. This configuration
corresponds to a resistance factor of 100. In
this case specic extensions must be requested.
Vertical kit with aluminium tile Ø 80/125.
Kit assembly (Fig. 1-19): to install the kit Ø
80/125 one must use the anged adapter kit in
order to install the ue system Ø 80/125. Install
the anged adaptor (2) on the central hole of the
boiler, positioning gasket (1) with the circular
projections downwards in contact with the boiler
ange and tighten using the screws contained
in the kit. Installation of the fake aluminium
tile: replace the tiles with the aluminium sheet
(4), shaping it to ensure that rainwater runs o.
Position the xed half-shell (5) on the aluminium
tile and insert the intake-exhaust pipe (7). Fit the
Ø 80/125 concentric terminal pipe with the male
side (smooth) to the female side of the adapter (1)
(with lip gaskets) up to the end stop; making sure
that the wall sealing plate (3) has been tted, this
will ensure sealing and joining of the elements
making up the kit.
• Extensions for vertical kit Ø 80/125 (Fig. 1-20).
e kit with this conguration can be extended
up to a max. length of 32 m including the terminal. If additional components are assembled,
the length equivalent to the maximum allowed
must be subtracted. In this case specic extensions must be requested.
pipe Ø 80/125 (7)
e remaining kit components
must not be used
1-18
33
33
1-201-19
C
33
C
33
2
1
14
1.15 SEPARATOR KIT INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Separator kit Ø 80/80. is kit allows air to come
in from outside the building and the fumes to exit
from the chimney or ue through divided ue
exhaust and air intake pipes. Combustion products are expelled from pipe (S) (in plastic, so as
to resist acid condensate). Air is taken in through
duct (A) for combustion (this is also in plastic).
e intake pipe (A) can be installed either on the
right or le hand side of the central exhaust pipe
(S). Both ducts can be routed in any direction.
• Kit assembly (Fig. 1-21): install ange (4) on
the central hole of the boiler, positioning gasket
(1) with the circular projections downwards
in contact with the boiler ange, and tighten
using the hex screws with at tip contained
in the kit. Remove the at ange present in
the lateral hole with respect to the central one
(according to needs) and replace it with the
ange (3), positioning the gasket (2) already
present in the boiler and tighten using the
supplied self-threading screws. Fit the male end
(smooth) to the bends (5) in the female end of
the anges (3 and 4). Fit the intake terminal (6)
with the male side (smooth) in the female side
of the bend (5) up to the end stop, ensuring that
the internal and external wall sealing plates are
tted. Fit the exhaust pipe (9) with the male
side (smooth) to the female side of the bend
(5) up to the end stop; making sure that the
internal wall sealing plate has been tted, this
will ensure sealing and joining of the elements
making up the kit.
• Installation clearances (Fig. 1-22). e minimum installation clearance measurements of
the Ø 80/80 separator terminal kit have been
stated in some limit conditions.
• Extensions for separator kit Ø 80/80. The
maximum vertical straight length (without
bends) that can be used for Ø 80 intake and
exhaust pipes is 41 metres, regardless from
whether they are used for intake or exhaust.
e maximum horizontal straight length (with
bend in suction and in exhaust) that can be
used for Ø 80 intake and exhaust pipes is 36
metres, regardless from whether they are used
for intake or exhaust.
N.B.: to favour the removal of possible condensate forming in the exhaust pipe, tilt the pipes
towards the boiler with a minimum slope of
is kit allows to install an Immergas boiler in
conguration "C93", achieving the combustion
air intake directly from the sha featuring the
fumes exhaust, obtained by means of a ducting
system.
System composition.
e system must be combined with the following
components (sold separately) to be functional
and complete:
- kit C93 version Ø 100 or Ø125
INSTALLERUSER
- ducting kit Ø 60 or Ø 80
- fumes exhaust kit Ø 60/100 or Ø 80/125 congured according to the installation and type
of boiler.
Kit Assembly.
- Mount the components of kit "C9" on the door
(A) of the ducting system (Fig. 1-25).
- (Version Ø 125 only) mount the anged adap-
tor (11) interposing the concentric gasket (10)
on the boiler, tting it with the screws (12).
- Mount the ducting system as described in the
relative instructions sheet.
- Calculate the distances between the boiler drain
and the bend of the ducting system.
- Prepare the boiler ue system, making sure that
the internal pipe of the concentric kit is tted
properly in the bend of the ducting system
(quota "X" g. 1-26), while the external pipe
must be tted on the adaptor until it stops (1).
N.B.: to encourage the removal of possible
condensate forming in the exhaust pipe, tilt
the pipes towards the boiler with a minimum
slope of 1.5%.
- Mount the cover (A) complete with adaptor (1)
and caps (6) on the wall and assemble the ue
system to the ducting system.
N.B.: (version Ø 125 only) before assembly check
the gaskets are in the right position. In the event
component lubrication (already carried out
by the manufacturer) is not sucient, remove
the residual lubricant using a dry cloth, then
to ease tting coat the parts with common or
industrial talc.
Once all components have been assembled properly, the exhaust fumes will be expelled via the
ducting system; the combustion air for normal
boiler operation will be aspirated directly by the
sha (Fig. 1-26).
Technical data.
- e dimensions of the shas must ensure a
minimum gap between the outer wall of the
smoke duct and the inner wall of the sha: 30
mm for circular section shas and 20 mm in
the event of a square section sha (Fig. 1-24).
- Maximum 2 changes of direction are allowed
on the vertical section of the ue system with
a maximum clearance angle of 30° with respect
to the vertical.
- e maximum vertical extension using a Ø
60 ducting system is 13 m, the maximum
extension includes 1 bend Ø 60/10 at 90°, 1 m
of horizontal pipe 60/100, 1 90° ducted bend
Ø 60 and the roof terminal for ducting.
To determine the C93 ue system in congu-
rations other than that described (Fig. 1-26)
one must consider that 1 metre of ducted pipe
according to the indications described has a
resistance factor equal to 4.9.
- e maximum vertical extension using a Ø 80
ducting system is 28 m, the maximum extension includes 1 adapter 60/100 to 80/125, 1 87°
bend Ø 80/125, 1 m of horizontal pipe 80/125,
1 90° ducted bend Ø 80 and the roof terminal
for ducting.
To determine the C93 ue system in congura-
tions other than that described (Fig. 1-26) one
must consider the following pressure drops:
- 1 m of concentric pipe Ø 80/125 = 1 m of
ducted pipe;
- 1 87° bend = 1.4 m of ducted pipe;
Consequently one must subtract the equivalent
length of the part added to the 28 m available.
1-24
A
B
Kit composition:
Ref.QtyDescription
11Door adaptor Ø 100 or Ø 125
MAINTENANCE TECHNICIAN
21Door gasket made of neoprene
34Screws 4.2 x 9 AF
41Hex headed screw M6 x 20
51Flat nylon washer M6
62Door hole closure metal-sheet plate
71Plug gasket made of neoprene
81Toothed washer M6
the kit
Identication of the component not supplied
in this kit
A
12
SHAFT
(C) mm
3
3
12
11
10
16
C
93
X
C
53
INSTALLERUSER
1.17 DUCTING OF FLUES OR
TECHNICAL SLOTS.
Ducting is an operation through which, via
the introduction of one or more relevant pipes,
one achieves a system for the evacuation of the
combustion products of a gas appliance, made up
from the coupling of an existing or new ducting
pipe with a chimney, ue or technical slot (also
in new buildings) (Fig. 1-27). Ducting requires
ducts declared to be suitable for the purpose by
the manufacturer, following the installation and
user instructions provided by the manufacturer
and the requirements of the local standards in
force.
Immergas ducting system. e Ø 60 rigid and
Ø 80 exible “Green Range” ducting systems must
only be used for domestic use and with Immergas
condensing boilers.
In any case, ducting operations must respect
the provisions contained in the standard and in
current technical regulations; in particular, the
declaration of conformity must be compiled at
the end of work and on commissioning of the
ducted system. e instructions in the project
or technical report must likewise be followed, in
cases provided for by the standard and current
technical regulations. e system or components
of the system have a technical life complying with
current standards, provided that:
- it is used in average atmospheric and envi-
ronmental conditions, according to current
regulations (absence of fumes, dusts or gases
that can alter the normal thermophysical or
chemical conditions; existence of temperatures
coming within the standard range of daily
variation, etc.).
- Installation and maintenance must be per-
formed according to the indications supplied
by the manufacturer and in compliance with
the provisions in force.
- e max. possible length of the Ø 60 exible
ducting vertical section is equal to 22 m. is
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in
exhaust, two 90°Ø 80 bends at boiler outlet.
- e max. possible length of the Ø 80 exible
ducting vertical section is equal to 30 m. is
1-26
length is obtained considering the complete
exhaust terminal, 1m of Ø 80 pipe in exhaust,
two 90° Ø 80 bends at boiler outlet for connecting to the ducting system and two direction
changes of the exible hose inside the chimney/
technical slot.
- e maximum possible length of the Ø 80 rigid
ducting vertical section is equal to 30 m. is
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in exhaust, two 90° Ø 80 bends on the boiler outlet.
1.18 CONFIGURATION TYPE B,
OPEN CHAMBER AND FORCED
DRAUGHT FOR INDOORS.
e appliance can be installed inside buildings
in 23 or B53 mode; in this case, all technical rules
and national and local regulations in force, must
be complied with.
- type B open chamber boilers must not be
installed in places where commercial, artisan
or industrial activities take place, which use
products that may develop volatile vapours or
substances (e.g. acid vapours, glues, paints, solvents, combustibles, etc.), as well as dusts (e.g.
dust deriving from the working of wood, coal
nes, cement, etc.), which may be harmful for
the components of the appliance and jeopardise
operation.
- in B23 and B53 conguration, the boilers must
not be installed in bedrooms, bathrooms or in
studio ats.
- e installation of appliances in B23 and B53 congurations are only recommended outdoors (in
a partially-protected place) or in places that
are not lived in and which are permanently
ventilated.
To install them, one must use the coverage kit
whose installation is referred to in paragraph
1.12.
1.19 FLUE EXHAUST TO FLUE/CHIMNEY.
Flue exhaust does not necessarily have to be
connected to a branched type traditional ue.
e ue exhaust, for boiler clots installed in C
configuration, can be connected to a special
1-27
LAS type multiple ue. For B23 congurations,
exhaust is only allowed into individual chimney
or directly into the external atmosphere via a
relevant terminal. e multiple ues and the
combined ues must also only be connected to
type C appliances of the same type (condensing),
having nominal heat inputs that do not dier by
more than 30% less with respect to the maximum
that can be attached and powered by the same
fuel. e thermo-uid dynamic features (ue
ow rate, % of carbon dioxide, % humidity etc....)
of the appliances attached to the same multiple
ues or combined ues, must not dier by more
than 10% with respect to the average boiler
attached. Multiple and combined ues must be
specially designed according to the calculation
method and requirements of the standards in
force, by professionally qualied technical sta.
Chimney or ue sections for connection of the
ue exhaust pipe must comply with requisites of
technical standards in force.
1.20 FLUES, CHIMNEYS, CHIMNEY POTS
AND TERMINALS.
e ues, chimneys and chimney pots for the
evacuation of combustion products must be in
compliance with applicable standards. Chimneys
and roof-installed exhaust terminals must comply with the outlet height and with the distance
from technical volumes set forth by the technical
standards in force.
Combustion products exhaust of natural
draught or fan assisted appliances in open-top
closed environments. In spaces closed on all
sides with open tops (ventilation pits, courtyards etc.), direct combustion product exhaust
is allowed for natural draught or fan assisted gas
appliances with a heat input range from 4 to 35
kW, provided the conditions as per the current
technical standards are respected.
MAINTENANCE TECHNICIAN
17
1.21 WATER TREATMENT SYSTEM
FILLING.
As already mentioned in the previous paragraphs, a chemical treatment of the thermal
system water is required, in compliance with the
local standards in force.
e parameters that inuence the duration and
proper operation of the heat exchanger are the
water's PH, hardness, conductivity, and oxygen,
together with the system's processing residues
(any welding residues), any oil present and corrosion products that can, in turn, cause damage
INSTALLERUSER
to the heat exchanger.
In order to prevent this from happening, you are
recommended to:
- Before installation on new systems as well as
old ones, clean the system with clean water to
eliminate solid residues contained therein.
- Clean the system with a chemical treatment:
- Cle an the new system with a suitable cleaning
device (for example Sentinel X300, Fernox
Cleaner F3 or Jenaqua 300) combined with
thorough washing.
- Clean the old system with a suitable cleaning
device (for example Sentinel X400 or X800,
Fernox Cleaner F3 or Jenaqua 400) combined
with thorough washing.
- Check the maximum hardness and quantity
of lling water referring to the graphics (Fig.
1-28). If the contents and hardness of the water are below the indicated curve, no specic
treatment is required; otherwise, to limit the
content of calcium carbonate, you must provide
for water-lling treatment.
- For lling, you are not allowed to use water
soened with the use of ionic-exchange resins
or distilled water.
- Should you be required to provide for water
treatment, this should be carried out by
completely desalinating the lling water. As
opposed to the complete soening process,
desalinating the water completely not only
removes hardening agents (Ca, Mg), but also
eliminates all other minerals to reduce water-lling conductivity up to 10 microsiemens/
cm. Given its low conductivity, desalinated
water does not only prevent the formation of
lime scale, but also serves as protection against
corrosion.
- Insert a suitable inhibitor / passivator (for
example Sentinel X100, Fernot Protector F1,
MAINTENANCE TECHNICIAN
or Jenaqua 100); if required, also insert appropriate antifreeze (such as for example Sentinel
X500, Fernox Alphi 11 or Jenaqua 500).
- Check electrical conduction of the water, which
should be higher than 2000 µs/cm in the case
of treated water and lower than 600 µs/cm in
the case of non-treated water.
- To prevent corrosion, the water system's PH
should be between 6.5 and 8.5.
- Check the maximum content of chlorides,
which should be less than 250 mg/l.
N.B.: for quantities and methods of use of water-treatment products, refer to the instructions
provided by their manufacturer.
1.22 SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling via the lling cock (Fig. 1-30 and
1-3). Filling is performed at low speed to ensure
release of air bubbles in the water via the boiler
and heating system vents.
e boiler has a built-in automatic venting valve
on the circulator. Check if the cap is loose. Open the
radiator vent valves.
Close radiator vent valves when only water
escapes from them.
Close the lling cock when the boiler pressure
gauge indicates approx. 1.2 bar.
N.B.: during these operations, enable the automatic vent functions on the boiler (active on
rst ignition).
1.23 CONDENSATE TRAP FILLING.
On rst lighting of the boiler, ue gas may come
out the condensate drain; aer a few minutes’
operation check that this no longer occurs. is
means that the drain trap is lled with condensate to the correct level preventing the passage
of ue gas.
1.24 GAS SYSTEM STARTUP.
To start up the system, refer to the technical
standard in force: is divides the systems and
therefore the start-up operations into three
categories: new systems, modified systems,
re-activated systems.
In particular, for new gas systems:
- open windows and doors;
- avoid presence of sparks or open ames;
- bleed all air from the pipelines;
- check that the internal system is properly sealed
according to the specications set forth by
technical regulations in force.
1.25 BOILER START UP IGNITION.
In order to issue the Declaration of Conformity
required by the laws in force, one must full
the following requirements to commission the
boiler (the operations listed below must only
be performed by qualied personnel and in the
presence of sta only):
- check that the internal system is properly sealed
according to the specications set forth by
technical regulations in force;
- ensure that the type of gas used corresponds to
the boiler settings (the type of gas appears on
the display on rst electrical supply voltage, or
by checking the relative parameter “G”);
- check connection to a 230V-50Hz power
mains, correct L-N polarity and earthing connection;
- Check that there are external factors that may
cause the formation of fuel pockets;
- switch the boiler on and check correct ignition;
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual (Par. 3.22);
- ensure that the safety device intervenes in the
event of gas supply failure and check the relative
intervention time;
- check the intervention of the main switch
located upstream from the boiler and in the
boiler;
- check that the intake/exhaust concentric terminal (if tted) is not blocked.
- Carry out the flue test and set the relative
parameter “F0”.
e boiler must not be started up even if only
one of the checks should be negative.
N.B.: solely upon completion of commissioning by
an installer, an authorised company can carry out
an initial check of the boiler, which is required to
activate the warranty of Immergas. e test certificate and warranty is issued to the user.
N.B.: the graph refers to the
entire life cycle of the system.
erefore, also consider scheduled and unscheduled maintenance, which involves emptying
and lling the said system.
System water litres
Water hardness °F
1-28
18
1.26 CIRCULATION PUMP.
e boilers are supplied with a variable speed
circulator pump.
In the central heating mode, the following operating modes are available and can be selected
from the “P.C.B. programming” menu.
NOTE.: the ∆T can be controlled compatibly
with the characteristics of the central heating
system and of the boiler.
•Proportional head (∆T = 0): the circulator
speed varies according to the power emitted
by the burner, the greater the power the greater
the speed.
•∆T Constant (∆T = 5 ÷ 25 K): the pump speed
varies to maintain the ∆T constant between the
system ow and return according to set value
K (∆T = 15 Default).
•Fixed (5 ÷ 9): by setting parameters “A3” and
“A4” at the same value, the pump operates at
constant speed.
N.B.: for the boiler to work properly, it is not
allowed to drop below the minimum value
indicated above.
In domestic hot water mode the circulator pump
always runs at maximum speed.
Pump release. If, aer a prolonged period of
inactivity, the circulation pump is blocked,
unscrew the front cap and turn the motor sha
using a screwdriver. Take great care during this
operation to avoid damage to the motor.
By-pass Regulation (part. 21 Fig. 1-30). e
boiler leaves the factory with the by-pass open.
If necessary, the by-pass can be regulated to
system requirements from minimum (by-pass
closed) to maximum (by-pass open). Adjust
using a at head screwdriver, turn clockwise
and open the by-pass, anticlockwise it is closed.
1.27 KITS AVAILABLE ON REQUEST.
• System shut-off valve kits with or without
inspection lter (on request). e boiler is
designed for installation of system interception
cocks to be placed on ow and return pipes
of the connection assembly. is kit is very
useful for maintenance because it allows to
empty just the boiler without having to empty
the entire system. Moreover, the version with
lter preserves the functioning characteristics
of the boiler thanks to its inspectionable lter.
• System zone control unit kit (on request). If
the heating system is to be divided into several
zones (max. three), in order to interlock them
with separate adjustments and to keep water
ow rate high for each zone, Immergas supplies
zone system kits by request.
• External storage tank unit coupling kit (on
request). If the production of DHW is required
as well as room central heating, on request
Immergas supplies a kit made up from an external cylinder unit and everything necessary
for adaptation of the boiler.
• Polyphosphate dispenser kit (on request). e
polyphosphate dispenser reduces the formation
of lime-scale and preserves the original heat
exchange and domestic hot water production
conditions. e boiler is prepared for application of the polyphosphate dispenser kit.
• Relay board (on request). e boiler is prepared
for the installation of a relay card that allows
to increase the features of the appliance and
therefore functioning possibilities.
• Cover kit (on request). If installed outdoors in a
partially protected place with direct air intake,it
is compulsory to mount the appropriate top
protection cover for the correct functioning
of the boiler and to protect it from adverse
weather conditions.
• Cycloidal lter kit (on request). e magnetic
cycloidal filter is able to detect the ferrous
residues present in the system's water. anks
to the two cocks in the kit, it facilitates maintenance by cleaning the lter without having
to empty the circuit.
e above-mentioned kits are supplied complete
with instructions for assembly and use.
INSTALLERUSER
Total head available to the system.
A
Head (kPa)
Vel. 9
C
Vel. 9
MAINTENANCE TECHNICIAN
D
Vel. 5
Flow rate (l/h)
B
19
1-29
1.28 BOILER COMPONENTS.
INSTALLERUSER
1-30
MAINTENANCE TECHNICIAN
Key:
1 - System lling valve
2 - System draining valve
3 - Gas valve
4 - Condensate drain trap
5 - System expansion vessel
6 - Air / gas mixer
7 - Delivery probe
8 - Manual air vent valve
9 - Ignition / detection electrode
10 - Sample points (air A) - (ue gas F)
11 - Flue probe
2.1 CLEANING AND MAINTENANCE.
Attention: to preserve the boiler's integrity and
keep the safety features, performance and reliability, which distinguish it, unchanged over time,
you must at least execute maintenance operations
on a yearly basis in compliance with what is stated
in the relative point at “annual check and maintenance of the appliance”. Annual maintenance
is essential to validate the conventional warranty
of Immergas. We recommend stipulating a yearly
cleaning and maintenance contract with your
zone Immergas Authorised Aer-sales Service.
2.2 GENERAL WARNINGS.
Never expose the wall-mounted boiler to direct
vapours from a cooking surface.
Use of the boiler by unskilled persons or children
is strictly prohibited.
For safety purposes, check that the concentric
air intake/flue exhaust terminal (if fitted), is
not blocked.
If temporary shutdown of the boiler is required,
proceed as follows:
a) drain the heating system if antifreeze is not
used;
b) shut-o all electrical, water and gas supplies.
In the case of work or maintenance to structures
located in the vicinity of ducting or devices for
ue extraction and relative accessories, switch o
the appliance and on completion of operations
ensure that a qualied technician checks eciency of the ducting or other devices.
Never clean the appliance or connected parts
with easily ammable substances.
Never leave containers or ammable substances
in the same environment as the appliance.
•Attenzione: the use of components involving
use of electrical power requires some funda-
mental rules to be observed:
- do not touch the appliance with wet or moist
parts of the body; do not touch when barefoot;
- never pull electrical cables or leave the appli-
ance exposed to weathering (rain, sunlight,
etc.);
- the appliance power cable must not be replaced by the user;
- in the event of damage to the cable, switch
off the appliance and contact exclusively
qualied sta for replacement;
- if the appliance is not to be used for a certain
period, disconnect the main power switch.
N.B.: the temperatures indicated by the display
have a tolerance of +/- 3°C due to environmental
conditions that cannot be attributed to the boiler.
INSTALLERUSER
2.3 CONTROL PANEL.
2-1
Key:
* 1 - Domestic hot water temperature selector
2 - Reset button
3 - Summer / Winter Button
4 - Central heating temperature selector
5 - Information button
6 - O / Stand-by / On button
7 - Boiler manometer
* 8 - DHW production phase operating mode
active
9 - Boiler in block requiring unblock via
“RESET” button
10 - Flame presence symbol and relative
power scale
11 - Functioning in summer mode
12 - Functioning in winter mode
13 - Room central heating phase operating
mode active
14 - Temperature indicator, boiler info and
error codes
15 - Boiler in Stand-by mode
16 - Presence of external connected devices
MAINTENANCE TECHNICIAN
17 - Not used on this model
18 - Functioning with external temperature
probe active (optional)
19 - Boiler connected to remote control V2
(optional)
20 - Not used on this model
* N.B.: (when the boiler is connected to an
external storage tank unit)
21
2.4 USING THE BOILER.
Attention:
the Victrix 12X-20X TT 2 ErP boiler was designed to operate as an appliance for room central
heating only or, coupled to a specic optional
kit, for central heating and DHW production.
For this reason the boiler control panel has a
knob to adjust the temperature of DHW, but its
operation is only activated by the optional kits
that also enable the production of DHW. Without
coupling to these specic kits, the functioning of
this knob and all functions referring to DHW are
INSTALLERUSER
inhibited, apart from the calibration phase and
scrolling the P.C.B. programming menu.
Before ignition make sure the heating system
is lled with water and that the manometer (7)
indicates a pressure of 1 ÷ 1.2 bar.
- Open the gas cock upstream from the boiler.
- Press the button (6) until the display switches
on. e boiler now returns to the state prior to
switch-o.
- If the boiler is in stand-by, press the button (6)
again to activate it. If this is not the case, go to
the next point.
- en press the button (3) in sequence and set
the boiler in the summer () or winter (
) position.
• Summer (): in this mode the boiler only
works to produce DHW (when the boiler is connected to the external storage tank unit); the
temperature is set via the selector (1) and the
relative temperature is shown on the display
via the indicator (14).
• Winter (): in this mode, the boiler works to
produce DHW (when the boiler is connected to the external storage tank unit) as well as central
heating. e temperature of the DHW is always
regulated via the selector (1), the heating temperature is regulated via selector (4) and the
relative temperature is shown on the display
via the indicator (14).
From this moment the boiler functions automatically. With no demand for heat (central heating
or domestic hot water production) the boiler
goes to “standby” function, equivalent to the
boiler being powered without presence of ame.
Each time the burner ignites, the relative ame
present symbol is displayed (10) with relative
output scale.
• Operation with Comando Amico RemotoV2
(CARV2) (Optional). If the CARV2 is connected,
the () symbol will appear on the display.
e boiler regulation parameters can be set via
the CARV2 control panel and the reset button
(2) remains active on the boiler control panel,
along with the switch-off button (6) (“off”
mode only) and the display where the functioning state is shown.
Caution: if the boiler is switched “o” the
CARV2 will display the connection error symbol
“ERR>CM”, the CARV2 is however powered
constantly so as not to lose the stored programs.
•Operation with optional external probe
(). In the case of a system with optional
external probe, the boiler ow temperature
for room central heating is managed by the
external probe depending on the external
temperature measured (Par. 1.9). The flow
temperature can be modied by selecting the
functioning curve via the selector switch (4)
(or on the CARV2 control panel, if connected
to the boiler) selecting a value from “0 to 9”.
With external probe present, the relative
symbol (18) will appear on the display. In the
central heating phase, if the temperature of the
water contained in the system is sucient to
heat the radiators, the boiler can only function
with the activation of the pump.
•“Stand-by” mode. Press button (6) repeatedly
until the symbol () appears. From now on
the boiler remains inactive and the anti-freeze
function, pump anti-block function and 3-way
and signalling of any anomalies is guaranteed.
N.B.: in these conditions the boiler is still
powered.
•“O” mode. By holding the button (6) down
for 8 seconds, the display switches-o and the
boiler is o completely. e safety functions are
not guaranteed in this mode.
IMPORTANT NOTE: in these conditions the
boiler is considered still live even if there are
no functions active.
•“Automatic vent” mode. Every time the boiler
is electrically powered, the system automatic
vent function is activated (lasting 8 minutes).
is function is displayed via a countdown
signalled by the indicator (14). During this
period the DHW and CH functions are not
active.
e “automatic vent” can be annulled by press-
ing the “reset” button (2).
•Display operation. e display lights up while
the control panel is being used; aer a set inactivity period, the brightness drops until only
the active symbols are displayed. e lighting
mode can be varied via parameter t8 in the
P.C.B. programming menu.
2.5 TROUBLESHOOTING.
e Victrix 12X-20X TT 2 ErP boiler reports any
anomalies via a code shown on the boiler display
(14) according to the following table:
Error
Code
MAINTENANCE TECHNICIAN
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Technical Aer-Sales Service).
(2) e anomaly can only be veried in the list of errors in the “Information” menu
Anomaly signalledCauseBoiler status / Solution
In the event of request of room central heating or domestic hot
01No ignition block
Safety thermostat
02
block (over-temperature)
Flue safety thermostat
03
block
Contacts resistance
04
block
05Flow probe anomalye board detects an anomaly on the ow NTC probe.e boiler does not start (1)
water production, the boiler does not switch on within the preset
time. Upon appliance commissioning or aer extended downtime, it may be necessary to eliminate the block.
During normal operation, if a fault causes excessive overheating
internally, the boiler goes into overheating block.
During normal operation, if a fault causes excessive ue gas overheating, the boiler blocks
e P.C.B. detects an anomaly on the gas valve supply. Check the
connection. (the anomaly is detected and displayed only in the
event of a request).
22
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
e boiler does not start (1)
Error
Code
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Technical Aer-Sales Service).
(2) e anomaly can only be veried in the list of errors in the “Information” menu
Anomaly signalledCauseBoiler status / Solution
Attention: the anomaly can be reset
5 times consecutively, after which the
08Maximum N° of resetNumber of allowed resets that have already performed.
Insucient system
10
pressure
Storage tank probe
12
anomaly (optional)
15Conguration error
16Fan anomalyis occurs if the fan has a mechanical or electrical fault.Press the Reset button (1)
20Parasite ame block
Push button control
24
panel anomaly
29Flue probe anomalye board detects an anomaly on the ue gas probee boiler does not start (1)
Loss of communica-
31
tion with the CAR
IMG Bus communica-
36
tion loss
Low power supply
37
voltage
38Loss of ame signal
Block due to loss of
43
ame signal
Block for exceeding
the maximum accu-
44
mulated time, close
gas valve opening
Low temperature
46
safety thermostat
(optional)
Burner power limi-
47
tation
CAR Wireless com-
51
munication failure
Main supply voltage
59
frequency block
Anomaly pump
60
blocked
Water pressure inside the central heating circuit that is sucient
to guarantee the correct operation of the boiler is not detected.
If the P.C.B. detects a fault in the boiler probe (when the boiler is connected to an external storage tank unit) , the boiler cannot produce DHW and signals a fault.
If the board detects an anomaly or incongruity on the electric
wiring, the boiler will not start.
is occurs in the event of a leak on the detection circuit or anomaly
in the ame control unit.
e board detects an anomaly on the pushbutton panel.
is occurs 1 minute aer communication is lost between the
V2
boiler and the CARV2.
Communication between the various components is interrupted
due to an anomaly on the boiler control unit, on the zone control
unit or on the IMG Bus.
is occurs when the power supply voltage is lower than the allowed
limits for the correct boiler operation.
is occurs when the boiler is ignited correctly and the burner
ame switches o unexpectedly; a new attempt at ignition is performed and if normal conditions are restored, the boiler does not
have to be reset.
is occurs if the ''Flame signal loss'' error occurs many times in
a row within a preset period (38).
is occurs if the gas valve remains open for longer than required
for normal operation, without
the boiler switching on.
During normal operation, if an anomaly causes excessive overheating of the ow temperature in low temperature conditions,
the boiler blocks.
Should ue high temperature be detected, the boiler reduces power
supplied so as not to damage it.
If there is no communication between the boiler and Wireless
version CAR, an anomaly is signalled. From this moment, it is
only possible to control the system by means of the control panel
of the boiler itself.
e board detects a main supply voltage frequency anomalye boiler does not start (1)
e pump is stopped due to one of the following causes:
Impeller blocked, electrical fault.
function in inhibited for at least one hour.
One attempt is gained every hour for a
maximum of 5 attempts. By switching the
appliance on and o again, the 5 attempts
are re-acquired.
Check on the boiler pressure gauge (1)
that the system pressure is between 1÷1.2
bar and restore the correct pressure if
necessary.
The boiler does not satisfy the DHW
production requests (1).
If normal conditions are restored the
boiler restarts without having to be reset. Check that the boiler is congured
correctly (1)
Press the Reset button (1)
If normal conditions are restored the
boiler restarts without having to be reset
(1).
Switch the boiler on and o again (1).
e boiler does not satisfy the room heating requests (1).
If normal conditions are restored the boiler restarts without having to be reset (1)
If normal conditions are restored the
boiler restarts without having to be reset
(1) (2)
Press the Reset button, before restarting,
the boiler will run a post-ventilation
cycle. (1)
Press the Reset button (1)
In this case, aer suitable cooling, it is possible to reset the thermostat (see relative
instructions sheet). (1).
(1)
Check operation of the Wireless CAR,
check the battery charge (refer to the
relative instructions booklet).
Try to unblock the pump as described in
the relative section. If normal conditions are
restored the boiler restarts without having
to be reset (1)
INSTALLERUSER
MAINTENANCE TECHNICIAN
23
Error
Code
INSTALLERUSER
MAINTENANCE TECHNICIAN
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Technical Aer-Sales Service).
(2) e anomaly can only be veried in the list of errors in the “Information” menu
Anomaly signalledCauseBoiler status / Solution
61Air in circulator pump Air is detected inside the pump; the pump cannot work.
Complete calibration
62
required
Fast calibration re-
72
quired
High ow probe and
73
safety ow probe devi-
ation detected.
Safety ow probe
74
anomaly
Combustion control
77
anomaly
Combustion control
78
anomaly
Combustion control
79
anomaly
P.C.B. malfunction
80
block
Combustion anomaly
84
- power reduction in
progress
Block - gas valve con-
87
trol
Block - gas valve con-
88
trol
Combustion signal un-
89
stable
Combustion signal be-
90
yond limit
Incorrect ignition
91
block
Fan revs correction
92
limit
Combustion signal be-
93
yond limit
94Combustion anomaly
Combustion signal dis-
95
continuous
96Clogged ue
Block - maximum no.
98
of soware errors
99General blockA boiler anomaly has been detectedPress the Reset button (1)
Missing calibration is detected by the P.C.B. It may occur in the
event the P.C.B. is replaced or if the parameters are altered in the air
/ gas section, thus requiring “complete calibration”.
e P.C.B. detects that some parameters have been altered, thus
requiring “fast calibration”.
e board detects an anomaly in the temperature readings of
the NTC ow probes; the causes may be: faulty probe, incorrect
position, poor system circulation, or clogging of the water side
primary heat exchanger.
e board detects an anomaly on the NTC safety ow probee boiler does not start (1)
Out of range current is detected on the gas valvee boiler does not start (1)
High current on the gas valve is detectede boiler does not start (1)
Reduced current on the gas valve is detectede boiler does not start (1)
is occurs in the event of malfunctions of the P.C.B. that controls
the valve.
A low supply pressure is detected on the gas line. As a result the
appliance power is limited and the anomaly is reported.
A malfunction of one of the components that controls the gas
valve has been detected
A malfunction of one of the components that controls the gas
valve has been detected
e ame is unstable due to: presence of ue gas recirculation,
wind, unstable gas pressure, unstable fan speed, or due to system
malfunction
e combustion signal is beyond the adjustment range required
for an extended period of time
e board has exhausted all possible actions in order to obtain
optimal ignition of the burner
e system has exhausted all possible corrections of the number
of fan revs
e combustion signal is beyond the adjustment range required
for a limited period of time.
A problem is detected on the combustion control, which may be
due to: gas low pressure, ue recirculation, defective gas valve or
P.C.B.
e system detects a discontinuous combustion signal.e boiler keeps working (1) (2)
is occurs in the event an obstruction is detected in the ue
system.
e maximum number of soware errors possible has been
reached.
Vent the pump and the central heating circuit. If normal conditions are restored the
boiler restarts without having to be reset (1)
e boiler does not start (1)
e boiler does not start (1)
If normal conditions are restored the boiler restarts without having to be reset (1)
Press the Reset button (1)
If normal conditions are restored the
boiler restarts without having to be reset
(1) (2)
e boiler does not start (1)
e boiler does not start (1)
e boiler keeps working (1) (2)
e boiler keeps working (1) (2)
Press the Reset button (1)
e boiler keeps working (1) (2)
e boiler keeps working (1) (2)
If normal conditions are restored the
boiler restarts without having to be reset
(1) (2)
e boiler does not start (1)
If normal conditions are restored the
boiler restarts without having to be reset
Press the Reset button (1)
24
2.6 INFORMATION MENU.
By pressing the "Info" button (5), the “Information menu” is activated for at least 1 second,
displaying some boiler operating parameters.
Press the "Info" button (5) to scroll the various
parameters.
To exit the menu, press the “Info” button (5) up
to the end of the list, or by pressing the “Reset”
button (2) or by waiting for 15 minutes.
With the menu active, the indicator (14) will
alternately show the indication of the parameter
via the letter “d” plus the number of the parameter that is being displayed and the value of the
parameter itself.
Id
Parameter
d 0.0Not used
d 0.1Displays the combustion signal
d 0.2Displays the primary exchanger output instant heating ow temperature
d 0.3Displays the DHW temperature of the storage tank unit (when the boiler is connected to the external storage tank unit)
d 0.4Displays the values set for central heating set
d 0.5Displays the values set for DHW set
d 0.6
d 0.7Not used
d 0.8Not used
d 1.0Anomaly list reset. Once “d 1.0” is displayed, press the Reset button; deletion is conrmed via the “88” symbols ashing for two seconds.
d 1.1Displays the temperature read on the safety ow probe
d 1.2Displays the pump operating speed
d 1.3Not used
d 1.4Displays the pump ow rate (lh/100)
d 1.5Displays the fan operating speed (rpm/100)
d 1.6Displays the temperature read on the ue probe
2.7 BOILER SHUTDOWN
Switch the boiler o by putting it in “o” mode,
disconnect the onmipolar switch outside of the
boiler and close the gas cock upstream from the
appliance. Never leave the boiler switched on if
le unused for prolonged periods.
2.8 RESTORING CENTRAL HEATING
Periodically check the system water pressure.
e boiler pressure gauge should read a pressure
between 1 and 1.2 bar.
If the pressure falls below 1 bar (with the circuit
cold) restore normal pressure via the valve located
at the bottom of the boiler (Fig. 1-3).
N.B.: close the cock aer the operation.
If pressure values reach around 3 bar the safety
valve may be activated.
In this case, remove water from an air vent valve
of a radiator until reaching pressure of 1 bar, or
ask for assistance from professionally qualied
personnel.
In the event of frequent pressure drops, contact
qualified staff for assistance to eliminate the
possible system leakage.
Displays the external environment temperature (if optional external probe present)
If the temperature is below zero, the value is displayed ashing.
Displays the list of the last ve anomalies.
d 09
(to scroll the list, turn the CH temperature selector (4))
2.9 SYSTEM DRAINING.
To drain the boiler, use the special draining
valve (Fig. 1-3).
Before draining, ensure that the lling cock is
closed.
2.10 ANTIFREEZE PROTECTION.
SYSTEM PRESSURE.
e “Victrix 12X-20X TT 2 ErP” series boiler
features an antifreeze function that lights the
burner automatically when the temperature falls
below 4°C (standard protection down to min.
temperature of -5°C). All information relative to
the anti-freeze protection is stated in Par. 1.3. In
order to guarantee the integrity of the appliance
and the domestic hot water heating system in
zones where the temperature falls below zero,
we recommend the central heating system is
protected using anti-freeze liquid and installation
of the Immergas Anti-freeze Kit in the boiler. In
the case of prolonged inactivity (second case),
we also recommend that:
- disconnect the electric power supply;
- the central heating circuit and boiler domestic
hot water circuit must be drained. In systems
that are drained frequently, lling must be carried out with suitably treated water to eliminate
hardness that can cause lime-scale.
Description
2.11 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.12 DECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact professional sta for the procedures and
ensure that the electrical, water and gas supply
lines are shut o and disconnected.
INSTALLERUSER
MAINTENANCE TECHNICIAN
25
BOILER COMMISSIONING
3
INITIAL CHECK
To commission the boiler:
- make sure that the declaration of conformity
for installation is supplied with the appliance;
- ensure that the type of gas used corresponds to
the boiler settings (the type of gas appears on
the display on rst electrical power supply, or
by checking the relative parameter “G”);
- check connection to a 230V-50Hz power
INSTALLERUSER
mains, correct L-N polarity and the earthing
connection;
- make sure the central heating system is lled
with water and that the pressure gauge indicates
a pressure of 1-1.2 bar.
3.1 BOILER HYDRAULIC DIAGRAM.
- switch the boiler on and check correct ignition;
- check the CO2 ow rate in the ue:
- maximum (100%)
- intermediate (50%)
- minimum (0%)
the values must comply with what is indicated
in the relative tables (Fig. 3-12);
- check activation of the safety device in the event
of no gas, as well as the relative activation time;
- check the intervention of the main switch
located upstream of the boiler and in the boiler;
- check that the intake and/or exhaust terminals
are not blocked;
- ensure activation of all adjustment devices;
- check the production of DHW (when the boiler
is connected to an external storage tank unit);
- check sealing eciency of water circuits;
- check ventilation and/or aeration of the installation room where provided.
If even only a single safety check oers a negative
result, do not commission the system.
Key:
1 - Gas valve
2 - Filling cut-o valve
3 - Condensate drain trap
4 - System lling valve
5 - System expansion vessel
6 - Condensation module
7 - Air / gas mixer
8 - Fan
9 - Ignition / detection electrode
10 - Air sample point
11 - Flue sample point
12 - Flue probe
13 - Manual vent valve
14 - Flow probe
15 - Safety ow probe
16 - Vent valve
17 - Boiler circulator pump
18 - System pressure switch
19 - ree-way valve (motorised)
20 - By-pass
21 - System draining valve
22 - 3 bar safety valve
23 - 3 bar safety valve drain tting signal
MAINTENANCE TECHNICIAN
G - Gas supply
RR - System lling
SC - Condensate drain
R - System return
M - System ow
3-1
26
3.2 WIRING DIAGRAM.
3-2
INSTALLERUSER
R6 - Central heating temperature trimmer
R8 - Storage tank function unabling resistance
S5 - System pressure switch
S20 - Room thermostat (optional)
T1 - Boiler PCB transformer
T2 - Ignition transformer
X40 - Room thermostat jumper
X70 - Low Temperature safety thermostat jumper
Y1 - Gas valve
1 - 230 Vac 50 Hz power supply
2 - Signal state
3 - 230 V Connections
4 - Very low voltage connections
4
3
Key:
A19 - Removable memory
B1 - Flow probe
B2 - Storage tank probe (optional)
B4 - External probe (optional)
B10 - Flue probe
B24 - Safety ow probe
CARV2 - Comando Amico Remoto remote control V2 (optional)
E3 - Ignition and detection electrode
M1 - Boiler circulator pump
M20 - Fan
M30 - ree-way valve
R5 - Domestic hot water temperature trimmer
MAINTENANCE TECHNICIAN
2
Colour code key:
BK - Black
BL - Blue
BR - Brown
G - Green
GY - Grey
OR - Orange
P - Purple
PK - Pink
R - Red
W - White
Y - Yellow
1
27
Comando Amico RemotoV2: the boiler is
prepared for the application of the Comando
Amico Remoto remote control V2 (CARV2), which
must be connected to clamps 41 and 44 of the
terminal board (located in the boiler control
panel) respecting the polarity and eliminating
jumper X40.
Room thermostat: the boiler is prepared for the
application of the room thermostat (S20), which
must be connected to clamps 40 and 41 of the
terminal board (located in the boiler control
panel Para. 1.7) eliminating jumper X40.
INSTALLERUSER
Storage tank unit: the boiler is prepared for
connection to a storage tank unit, which must be
connected to clamps 36 and 37 of the terminal
board (located in the boiler control panel, Para
1.7) eliminating resistance R8.
e connector X5 is used for the connection to
the relay board.
e connector X6 is for connection to a personal
computer.
e connector X8 is used for soware updating
operations.
3.3 REMOVABLE MEMORY
e P.C.B. is equipped with a removable memory
(2 Fig. 3-4), which records all operation parameters and system customisations.
Should the P.C.B. be replaced, you can use the
memory of the replaced board again, so it is not
necessary to recongure the appliance.
Attention: replacing the memory must be carried
out aer disconnecting all electrical connection
of the P.C.B.
GAS valve SGV 100 B&P
Key:
1 - Gas valve outlet pressure point
2 - Coil
3 - Wiring connector
4 - Gas valve inlet pressure point
MAINTENANCE TECHNICIAN
3-3
P.C.B.
Key:
1 - Fuse 3.15 AF
2 - Removable memory
(A19)
3.4 TROUBLESHOOTING.
N.B.: maintenance interventions must be carried
out by an authorised company (e.g. Immergas
Aer-Sales Technical Assistance Service).
- Smell of gas. Caused by leakage from gas circuit
pipelines. Check sealing eciency of gas intake
circuit.
- Repeated ignition blocks. No gas, check the
presence of pressure in the network and that
the gas adduction cock is open.
- Irregular combustion or noisiness. It may be
caused by: a dirty burner, incorrect combustion
parameters, intake-exhaust terminal not correctly installed. Check the above components.
- Non-optimal ignition of rst ignition of the
burner: even if the burner is perfectly calibrated, rst ignition of the burner (aer calibration)
can be sub-optimal; the system automatically
regulates ignition until it nds optimal ignition
of the said burner.
- Frequent interventions of the overheating
safety thermostat. It can depend on the lack
of water in the boiler, little water circulation
in the system or blocked pump. Check on the
manometer that the system pressure is within
established limits. Check that the radiator
valves are not closed and also the functionality
of the pump.
- Drain trap clogged. is may be caused by
dirt or combustion products deposited inside.
Check that there are no residues of material
blocking the ow of condensate.
- Heat exchanger clogged. is may be caused by
the drain trap being blocked. Check that there
are no residues of material blocking the ow of
condensate.
1
2
3
4
- Noise due to air in the system. Check opening
of the special air vent valve cap (Part. 17 Fig.
1-30). Make sure the system pressure and
expansion vessel pre-charge values are within
the set limits; e factory-set pressure values of
the expansion vessel must be 1.0 bar, the value
of system pressure must be between 1 and 1.2
bar.
- Noise due to air inside the condensation
module. Use the manual air vent valve (Part.
8 Fig. 1-30) to eliminate any air present in the
condensation module. When the operation has
been performed, close the manual vent valve.
- Poor production of D.H.W (when the boiler is connected to an external storage tank unit). If a
drop in performance is detected during supply
of D.H.W., it is possible that the condensation
module is clogged. In this case, contact Immergas Aer-Sales Assistance Service that has
procedures to clean the module or D.H.W. heat
exchanger.
3.5 CONVERTING THE BOILER TO
OTHER TYPES OF GAS.
If the boiler has to be converted to a dierent type
of gas to that specied on the data nameplate,
proceed as follows:
e gas conversion operation must be carried
out by an authorised company (e.g. Immergas
Aer-Sales Technical Assistance Service).
To convert to another type of gas the following
operations are required:
- Select, via programming menu “G”, the type of
gas by selecting “nG” for methane gas and “LG”
for LPG gas. (See par. 3.12).
- Carry out complete calibration (see par. 3.7);
during the procedure check and, if necessary,
correct the air - gas ratio.
- Upon completing the conversion, apply the
sticker regarding the modied gas content onto
the data nameplate in the connection box.
ese adjustments must be made with reference
to the type of gas used, following that given in
the table (Par. 3.22).
3.6 CHECKS FOLLOWING
CONVERSION TO ANOTHER TYPE
OF GAS.
Aer having made sure that the conversion is
complete and that the calibration has been successful, you must make sure that:
- there is no ame in the combustion chamber
- the burner ame is not too high or low and that
it is stable (does not detach from burner)
- the pressure testers used for calibration are
perfectly closed and there are no leaks from
the gas circuit.
IMPORTANT NOTE: all boiler adjustments
must be carried out by a qualied technician
(e.g. Immergas Aer-Sales Te chnical Assistance).
3-4
28
3.7 CALIBRATION TYPE INVOLVING
THE REPLACEMENT OF A
COMPONENT.
When performing extraordinary maintenance
on the boiler, involving the replacement of a
component, such as the P.C.B. (if the removable
memory is not put into the replacement board)
or components in the air, gas and ame control
circuits, the boiler will need to be calibrated.
Select the type of calibration to be carried out
according to the table below.
Replaced
component
Gas valveQuick calibration
FanQuick calibration
BurnerComplete calibration
Ignition/detection
electrodes
P.C.B.
(New virgin P.C.B.
without removable
memory recovery)
P.C.B.
(Recovery of the removable memory
with the boiler parameters set from the
replaced board)
3.8 COMPLETE CALIBRATION
FUNCTION.
N.B.: before carrying out complete calibration,
ensure that all the requirements indicated in
paragraphs 1.23 and 1.24 have been fullled.
IMPORTANT NOTE: to access this function
it is crucial that there are no active requests for
central heating or DHW production.
In the event of anomaly “62” or “72” (see parag.
2.6) the boiler cancels any requests by itself.
N.B.: during the various calibration stages, the air
- gas ratio can be checked and possibly corrected
as described in par. 3.9.
The energy produced is dissipated via the
heating circuit; alternatively, the energy can be
released from the DHW circuit by opening any
hot water tap.
Caution: in this case the only active temperature
control is the ow probe that limits the maximum
temperature exiting the boiler at 90°C, therefore
be careful not to get burned.
- e calibration procedure involves three stages:
- nominal heat output calibration;
- intermediate heat output ignition calibration;
- minimum heat output calibration;
- calibration self-check.
Type of calibration
required
with air-gas ratio
check
Complete calibration
with air-gas ratio
check
Restore the parameters as described in
the paragraph “P.C.B.
programming”
Complete calibration
with air-gas ratio
check
No calibration required.
Each calibration procedure, if carried out without
altering the parameters, lasts 5 minutes at the
most, aer which it switches automatically to
the next parameter until the calibration process
is complete.
In order to access the complete calibration
stage, you must switch the boiler on, set the
DHW selector in the “6 o' clock” position and
the heating selector in the “9 o' clock” position,
(Fig. 3-5) and press the “Reset” button for about
8 seconds until the “chimney sweep” function
is activated; then press the “summer / winter”
button within 3 seconds.
3-5
•Nominal heat output: with the function active,
the boiler carries out the procedures required
to calibrate the appliance at the nominal heat
output.
At this stage the display features flashing
icons: “summer”, “winter”, “stand-by” and the
operating temperature alternated with the
current operating heat output (99%); once the
parameters are detected and stabilised, the
frame of the ame presence symbol (ref. 10 g.
2-1) will start ashing (this procedure may last
a few minutes), meaning that the nominal heat
output parameters have been set.
3-6
e air - gas ratio can only be corrected aer
the ame presence frame has ashed (see parag.
3.9) or switch to the next heat output parameter
by pressing the “info” button.
•Intermediate heat output ignition: once the
nominal heat output calibration is conrmed,
the boiler is calibrated with the intermediate
heat output (or ignition heat output).
At this stage the display features flashing
icons: “summer”, “winter”, “stand-by” and the
operating temperature alternated with the current operating heat output (typically 41% but
variable according to the boiler model); once
the parameters are detected and stabilised, the
frame of the ame presence symbol will start
ashing, meaning that the intermediate heat
output parameters have been set.
3-7
e air - gas ratio can only be corrected aer
the ame presence frame has ashed (see parag.
3.9) or switch to the next heat output parameter
by pressing the “info” button.
•Minimum heat output: aer having calibrated
the boiler with the intermediate heat output, it
is calibrated with the minimum heat output.
At this stage the display features flashing
icons: “summer”, “winter”, “stand-by” and the
operating temperature alternated with the
current operating heat output (0%); once the
parameters are detected and stabilised, the
frame of the ame presence symbol will start
flashing, meaning that the minimum heat
output parameters have been set.
3-8
e air - gas ratio can only be corrected aer
the ame presence frame has ashed (see parag.
3.9) or exit the calibration mode by pressing the
“summer / winter” button.
•Calibration self-check: once calibration operations are complete, the boiler runs a self-check
for about one minute. During this check, the
boiler can run at dierent powers and it is not
possible to apply modications to the operating
parameters or to delete the operation in progress. Moreover, it is important not to cut the
boiler’s power.
INSTALLERUSER
MAINTENANCE TECHNICIAN
29
3.9 ADJUSTING THE AIR GAS RATIO
During complete calibration (par. 3.8), you can
modify the values of the air - gas ratio.
To have an exact value of CO2 in the ue, the
technician must insert the sampling probe to the
bottom of the sample point, then check that the
CO2 value is that specied in the table (Par. 3.23),
(with maximum tolerance equal to ± 0.2 %);
otherwise, modify the value as described below:
- During calibration, when the frame of the
ame presence starts ashing (indicating the
INSTALLERUSER
correct acquisition of the parameters) it is
possible to alter the CO2 value by pressing the
“Reset” button. At this stage the display features
ashing icons: “summer”, “winter”, “stand-by”,
“ame presence”, “external connected devices
presence” and the operating temperature is
displayed, alternated with the combustion
setting.
- To increase the combustion setting, press the
“Stand-by” button; to decrease it, press the
“Info” button. As the combustion setting increases, the CO2 value decreases and vice-versa.
- Once the parameter has been altered wait for
the value to be saved (displayed via the frame
of the ame presence symbol ashing).
- To confirm the set value press the “Reset”
button.
3.10 FAST CALIBRATION.
is function allows you to calibrate the boiler
automatically without requiring or giving the
possibility to alter the parameters. Typically
“fast calibration” is used aer having set the type
of ue in menu “F”, which once altered causes
anomaly “72”.
N.B.: before performing a quick calibration,
ensure that all the requirements indicated in
paragraphs 1.21 and 1.22 have been fullled.
IMPORTANT NOTE: to access this function
it is crucial that there are no active requests for
central heating or DHW production.
In the event of anomaly “62” or “72” (see parag.
2.6) the boiler cancels any requests by itself.
The energy produced is dissipated via the
heating circuit; alternatively, the energy can be
released from the DHW circuit by opening any
hot water tap.
Caution: in this case the only active temperature
control is the ow probe that limits the maximum
temperature exiting the boiler at 90°C, therefore
be careful not to get burned.
In order to access the fast calibration stage, set
the DHW selector in the “6 o' clock” position and
the heating selector in the “9 o' clock” position,
(Fig. 3-10) and press the “Reset” button for about
3-9
8 seconds until the “chimney sweep” function is
activated; then press the “info” button within
3 seconds.
Once the function is active, the boiler sequentially carries out the procedures required to calibrate
the appliance with the nominal, intermediate and
minimum heat output values.
At this stage the display features ashing icons:
“summer”, “winter”, “stand-by”, “external probe”,
“solar probe” and the operating temperature is
displayed, alternated with the current operating
heat output.
e calibration stages (nominal, intermediate
and minimum) progress automatically and you
must wait until calibration is complete.
3-11
MAINTENANCE TECHNICIAN
3-10
30
3.11 FLUE TEST.
To dene the value to set in the ”ue length”
“F0” parameter, detect the parameters during
the “ue test”.
Attention: Before performing the test, ensure
that the condensate drain trap has been lled
correctly and check that there are no obstructions
in the air intake circuit and ue exhaust.
Once the test has been carried out properly, note
the detected value in the relevant table, in order
to have it available for future checks.
To activate this mode, the boiler must be in
“stand-by” mode, which is visible when the
() symbol appears.
IMPORTANT NOTE: if the boiler is connected
to the CARV2 the “stand-by” function can only be
activated via the remote control panel.
To activate the function, press the “Reset” (2) and
“on/o” (6) buttons simultaneously until function activation, which is displayed by indicating
the fan operation speed (in hundreds of revs) and
ignition of the ashing “D.H.W.” (8) and central
heating symbols.
Attention: Ensure that the condensate drain
trap has been lled correctly before carrying
out the test.
3-13
Victrix 20X TT 2 ErP
Parameter F0Pressure
0< 145 Pa
1146 ÷ 178 Pa
2179 ÷ 205 Pa
Detected value
(upon rst check)
N.B.: examinations are carried out by sealing the
holes provided to analyse the ues, making them
pneumatically sealed.
Attention: should there be a boiler malfunction,
you can carry out a ue test to check that there
are no obstructions in the ue system. Dierent
values to those indicated in the previous tables
indicate a ue system malfunction, especially
a ue system with excessive load losses or obstructed system.
3.12 PROGRAMMING THE P.C.B.
e boiler is prepared for possible programming
of several operation parameters. By modifying
these parameters as described below, the boiler
can be adapted according to specic needs.
To access the programming stage, set the DHW
selector in the “6 o' clock” position and the
heating selector in the “9 o' clock” position and
press the “Reset” and “Summer/Winter” buttons
for about 8 seconds (Fig. 3-14).
Once the programming mode has been accessed,
scroll through the ve menus (G, P, t, A, F) by
pressing the “Summer / Winter” button for 1
second.
Menu G is reserved for the air-gas control settings
and it features two sub-menus (n and S), relating
to fan and gas valve control settings. Every time
these parameters are altered, the Complete calibration function must be activated (see parag.
3.8). In order to access parameters “n” and “S”
press the “Reset” button sequentially. In order
to exit this part of the menu and access other
parts (categories P, t, A, F) press the “Summer
/ winter” button.
Use the ''D.H.W. regulator'' selector to select
the parameter (within the same sub-menu)
and rotate the ''C.H. regulator'' selector to alter
the value.
Press the "Reset" button for 1 second to store the
altered parameters.
If the parameters are stored successfully, "88"
appears on the indicator (Ref. 14 g. 2-1) for
2 seconds.
Exit the programming mode by waiting for 15
minutes or by pressing the “Reset” and "Summer/
Winter" buttons at the same time.
Attention: if necessary the default values relating
to parameters “S” and “P0 ÷ P2” can be altered by
temporarily modifying the type of gas (parameter
“G”) and by restoring it according to the actual
operating conditions (wait for approximately 10
seconds between the gas change and the when
it is restored).
e restored values will be those relating to the
type of boiler set in parameters “n” and “F”.
At the end of this operation, anomaly “E62” will
appear and complete calibration will be required.
INSTALLERUSER
e appliance remains in this mode for a maximum period of 15 minutes, keeping the fan
speed constant.
is function ends once 15 minutes have elapsed,
or by disconnecting supply voltage to the boiler,
or by pressing the “on/o” (6) button for approximately 8 seconds.
Check the ΔP between the test pressures (g. 1-30
Ref. 13), in compliance with the values indicated
in the following tables:
Id
Parameter
G
In the event of an alteration, anomaly “E62” appears and complete calibration is required.
Id
Parameter
nBoiler modelDene the boiler model0 ÷ n
Caution: only use the parameter relating to the boiler installed.
In the event of an alteration, anomaly “E62” appears and complete calibration is required.
ParameterDescriptionRangeDefault
Denes operation with methane gasnG
Denes operation with LPG gasLG
ParameterDescriptionRangeDefault
3-14
MAINTENANCE TECHNICIAN
Customised
value
nG
Customised
value
04=Victrix 12X TT 2 ErP
02=Victrix 20X TT 3 ErP
31
Id
Parameter
S0Min output
S1Max output
S2Ignition output
In the event of an alteration, anomaly “E62” appears and complete calibration is required.
ParameterDescriptionRangeDefault
e P.C.B. denes the operating mode and the boiler output according to
the combination of several parameters. e proper operating output of the
appliance is dened according to the combination of the parameters of menus
“n” and “F”.
For this reason it is recommended not to alter the parameters of this menu in
order not to compromise the proper operation of the boiler.
INSTALLERUSER
Id
Parameter
P0DHW max
P1Min output
P2Heating max
P3
P4
P5
MAINTENANCE TECHNICIAN
P6
P7
P8-Not used on this boiler model--
ParameterDescriptionRangeDefault
Denes the maximum heat output percentage of the boiler during the D.H.W.
phase compared to the maximum heat output available
Denes the minimum heat output percentage of the boiler compared to the
minimum heat output available
Denes the maximum heat output percentage of the boiler during the central
heating mode compared to the maximum heat output available
e boiler is set-up for functioning with the relay P.C.B. (optional), which
can be congured
0 = O
Relay 1
(optional)
Relay 2
(optional)
Relay 3
(optional)
Pump function-
ing
External probe
correction
1 = Main zone control
2 =General alarm
3 = CH phase active
4 = External gas valve power supply
5 = (Do not use on this boiler model)
6 = (Do not use on this boiler model)
7 = (Do not use on this boiler model)
e boiler is set-up for functioning with the relay P.C.B. (optional), which
can be congured
0 = O
1 =General alarm
2 = CH phase active
3 = External gas valve power supply
4 = Secondary zone control (from TA on relay P.C.B. contact)
5 = Heat pump
6 = (Do not use on this boiler model)
7 = (Do not use on this boiler model)
e boiler is set-up for functioning with the relay P.C.B. (optional), which
can be congured
0 = O
1 = Chiller remote activation
2 =General alarm
3 = CH phase active
4 = External gas valve power supply
5 = heat pump
6 = activation of storage tank pump
7 = Main zone control
8 = (Do not use on this boiler model)
9 = (Do not use on this boiler model).
e pump can function in two ways.
0 intermittent: in winter "mode" the circulator is managed by the room
thermostat or by the remote control
1 continuous: in "winter" mode the circulator is always powered and is
therefore always in operation
If the reading of the external probe is not correct it is possible to correct it
in order to compensate any environmental factors.
(Over the value of +9 the display shows “CE”, which enables an external control function of the boiler for coupling of the same with a system supervisor)
750 ÷ 1700
rpm
S0 ÷ 6900
rpm
2000 ÷ 4500
rpm
0 - 99 %99%
0 - P20%
0 - 99%
0 - 71
0 - 70
0 - 90
0 - 10
-9 ÷ 9 K0
according
to the boiler
according
to the boiler
Customised
value
model
Customised
value
model
32
Id
Parameter
t0
t1
t2DHW thermostat
t3Solar delay timing is function does not aect the correct functioning of this boiler model.
t4
t5
t6
t7
t8Display lighting
t9Display
ParameterDescriptionRangeDefault
Central heating set
point minimum
temperature
Central heating set
point maximum
temperature
Domestic hot water
priority timing
Central heating
ignitions timer
Central heating
ramp timer
CH ignition delay
from TA and CR
request
Denes the minimum ow temperature.20 ÷ 50 °C25
Denes the maximum ow temperature.
Establishes the ignition and switch-o method of the boiler in DHW phase (when
the boiler is connected to an external storage tank unit).
0 - Ignition occurs when the water contained in the storage tank drops by 3°C with
respect to the temperature set and switches o when the temperature is at the
value set (solar activated)
1 - Ignition occurs when the water contained in the storage tank drops by 2°C with
respect to the temperature set and switches o when the temperature is at +1°C
with respect to the value set (solar deactivated)
2 - Ignition occurs when the water contained in the storage tank drops by 10°C with
respect to the temperature set and switches o when the temperature is at the
value set (solar activated)
3 - Ignition occurs when the water contained in the storage tank drops by 5°C with
respect to the temperature set and switches o when the temperature is at the
value set (solar activated)
is function does not aect the correct functioning of this boiler model.
e boiler has electronic timing, which prevents the burner from igniting too oen
in central heating mode
In the heating stage, the boiler performs an ignition ramp in order to reach the
maximum output set
e boiler is set to switch-on immediately aer a request. In the event of particular
systems (e.g. area systems with motorised thermostatic valves etc.) it may be necessary to delay ignition
Establishes the display lighting mode.
0 Automatic: the display lights up during use and dims aer 15 seconds of inactivity.
In the event of an anomaly the display ashes.
1 Low: the display is always lit with low intensity
2 High: the display is always lit with high intensity.
Establishes what the indicator displays 14 (Fig. 2-1).
"Summer" mode:
0: the indicator is always o
1: circulator active, it displays the ow temperature
pump o the indicator is o
"Winter" mode:
0: it always displays the value set on the central heating selector
1: circulator active, it displays the ow temperature
pump o always displays the value set on the CH selector
(t0+5) ÷
85 °C
0
On = -3°C
O = +0°C
1
On = -2°C
O = +1°C
2
On = -10°C
O = +0°C
3
On = -5°C
O = +0°C
0 - 30 sec-
onds
0 - 100
seconds
(step 10 sec)
0 - 600
seconds
(step 10 sec)
0 - 840
seconds
(step 10 sec)
0 - 600
seconds
(step 10 sec)
0 - 20
0 - 11
Customised
value
85
INSTALLERUSER
2
0
2
18
18
0
MAINTENANCE TECHNICIAN
33
INSTALLERUSER
Id
Parameter
A0Hydraulic model Denes the type of hydraulics in the boiler
A1-Not used on this boiler model--
A2
A3-Not used on this boiler model--
A4-Not used on this boiler model--
A5-Not used on this boiler model--
ParameterDescriptionRangeDefault
Set
2
Model
Pump
Denes the type of circulator in the boiler
Set
0
Customised
value
2
0
Id
Parameter
F0
F1-Not used on this boiler model--
In the event of an alteration, anomaly “E72” appears and fast calibration is required.
3.13 SOLAR PANELS COUPLING
FUNCTION.
e boiler is set-up to receive water. In the event
of integration of DHW heating with solar panel
systems, the boiler is set by default for management of the storage tank unit via parameter “t2.”
set on “2” (Par. 3.12).
3.14 "CHIMNEY SWEEP" FUNCTION.
When activated, this function forces the boiler
to variable output for 15 minutes.
In this state all adjustments are excluded and
only the safety thermostat and the limit thermostat remain active. To activate the chimney
sweep function, press the “Reset” button (2)
until activation of the function in the absence
of DHW requests.
Its activation on the boiler display is conrmed
by the indicators ashing at the same time (11
and 12 Fig. 2-1), while on the CARV2 (optional)
it is indicated as “ERR>07”.
is function allows the technician to check the
combustion parameters.
Once the function is activated, it is possible to
select whether to make the check in CH status
or DHW status (when the boiler is connected to an external storage tank unit) by opening any hot
water cock and regulating the power by turning
the "CH regulation" selector (6).
MAINTENANCE TECHNICIAN
e central heating or DHW operating mode is
displayed by the relative symbols or .
Aer the checks, deactivate the function switch-
ing the boiler o and then on again.
Attention: the boiler needs a certain amount of
time to stabilise itself before carrying out a combustion parameters check. It is thus necessary to
wait for the boiler to carry out a self-diagnosis
test, which is signalled by the () ashing
symbol. Once the symbol stops ashing, it is
possible to check the combustion parameters.
3.15 PUMP ANTIBLOCK FUNCTION.
e boiler has a function that starts the pump at
least once every 24 hours for the duration of 30
seconds in order to reduce the risk of the pump
becoming blocked due to prolonged inactivity.
ParameterDescriptionRangeDefault
Equivalent length
ue
Denes the length of the ue (see par. 3.10)0 - 20
3.16 THREEWAY ANTIBLOCK
FUNCTION.
Both in “domestic hot water” and in “domestic
hot water-central heating” phase the boiler is
equipped with a function that starts the threeway motorised group 24 hours aer it was last
in operation, running it for a full cycle so as to
reduce the risk of the three-way group becoming
blocked due to prolonged inactivity.
3.17 RADIATORS ANTIFREEZE
FUNCTION.
If the system return water is below 4°C, the boiler
starts up until reaching 42°C.
3.18 P.C.B. PERIODIC SELFCHECK.
During functioning in central heating mode or
with boiler in standby, the function activates
every 18 hours aer the last boiler check/power
supply. In case of functioning in domestic hot water mode the self-check starts within 10 minutes
aer the end of the withdrawing in progress, for
duration of approx. 10 seconds.
N.B.: during self-check, the boiler remains o.
3.19 AUTOMATIC VENT FUNCTION.
In the case of new central heating systems and
in particular mode for oor systems, it is very
important that dearation is performed correctly.
e function consists of the cyclic activation of
the pump (100 s ON, 20 s OFF) and the 3-way
valve (120 s D.H.W., 120 s C.H.).
e function is activated in two dierent ways:
- every time the boiler is powered;
- by pressing the buttons at the same time (3
and 5 Fig. 2-1) for 5 seconds with the boiler in
stand-by.
IMPORTANT NOTE: if the boiler is connect-
ed to the CARV2 the “stand-by” function can
only be activated via the remote control panel.
In the rst case, the function has duration of 8
minutes and it can be interrupted by pressing
the “reset” button (2). In the second case it has
duration of 18 hours and it can be interrupted by
simply switching the boiler on.
Activation of the function is signalled by the
countdown shown on the indicator (14).
Customised
value
34
3.20 YEARLY APPLIANCE CHECK AND
MAINTENANCE.
e following checks and maintenance should
be performed at least once a year.
- Check that the system's water PH is between
6.5 and 8.5.
- Visually check for water leaks or oxidation
from/on fittings and traces of condensate
residues inside the sealed chamber.
- Check contents of the condensate drain trap.
- Check that there are no residues of material
clogging the condensate passage; also check
that the entire condensate drainage circuit is
clear and ecient.
- Visually check that the water safety drain valve
is not clogged.
- Check that, aer discharging system pressure
and bringing it to zero (read on boiler pressure
gauge), the expansion vessel pressure is at 1.0
bar.
- Check that the system static pressure (with
system cold and aer relling the system by
means of the lling valve) is between 1 and 1.2
bar.
- Visually check that the safety and control
devices have not been tampered with and/or
short-circuited.
- Check the condition and integrity of the elec-
trical system and in particular:
- supply voltage cables must be inside the
fairleads;
- there must be no traces of blackening or
burning.
- Check ignition and operation.
- Check correct calibration of the burner in
domestic hot water and central heating phases.
- Check the operation of the appliance control
and adjustment devices and in particular:
- system regulation probes intervention;
- the intervention of the DHW adjustment
thermostat (when the boiler is connected to an external storage tank unit).
- Check sealing eciency of the gas circuit and
the internal system.
- Verify the intervention of the ionisation ame
control no gas device:
- Check the CO2 by using the chimney sweep
function at the three reference heat outputs
(Fig. 3-12). Should values out of the indicated
tolerance range be detected, check the integrity
of the ignition / detection electrode and, if
required, change it, also changing the relative
gasket. At this point, activate the “complete
calibration” function.
- Carry out the flue test. Values below 40%
compared to the pressures detected upon rst
check, suggest a clogged burner or module (ue
side).
Attention: the burner does not need to be
opened for normal maintenance of the appliance.
However, should it be removed, you must change
the gasket.
IMPORTANT NOTE: in addition to yearly
maintenance, you must also check the thermal
system and energy eciency, with the frequency
and procedures that comply with the technical
regulations in force.
INSTALLERUSER
Victrix 12X TT 2 ErP
CO2 at nominal
output
G 209.10 ± 0.809.00 ± 0.809.00 ± 0.80
G 3110.10 ± 1.0010.00 ± 1.0010.00 ± 1.00
CO2 at nominal
output
G 209.10 ± 0.809.00 ± 0.809.00 ± 0.80
G 3110.10 ± 1.0010.00 ± 1.0010.00 ± 1.00
N.B.: measurements and calibration must be carried out by using regularly-cali-
brated instruments.
CO2 at intermediate
output
Victrix 20X TT 2 ErP
CO2 at intermediate
output
CO2 at minimum
output
CO2 at minimum
output
35
MAINTENANCE TECHNICIAN
3-12
3.21 CASING REMOVAL.
To facilitate boiler maintenance the casing can
be completely removed as follows:
• Lower grid (Fig. 3-15a).
1) Loosen the two screws (a);
2) Press the hooks inwards, which block the
lower grid (b).
3) remove the grid (b).
• Front panel (Fig. 3-15b).
4) Remove the cover caps (c) and loosen screws
INSTALLERUSER
(d).
5) Pull the front panel (e) towards you and
release it from its lower seat.
3
2
a
b
• Front (Fig. 3-15c).
6) Loosen the two screws (g).
7) Pull the front (f) slightly towards you.
8) Release front (f) from pins (h) pulling it
towards you while pushing it upwards at the
same time.
4
3
2
d
c
a
1
4
d
e
5
c
MAINTENANCE TECHNICIAN
1
3-15a3-15b
8
8
h
h
7
6
7
6
g
f
36
g
3-15c
Rif. X
• Control panel (Fig. 3-15d).
9) Press the hooks on the side of the control
panel (i).
10) Tilt the control panel (i) towards you.
• Sides (Fig. 3-15e).
11) Loosen screws (k) of side fastening (j).
12) Remove the sides by extracting them from
their rear seat (Rif. X).
INSTALLERUSER
9
11
10
9
i
9
i
9
Ref. X
3-15d
X
k
X
X
11
11
12
X
k
MAINTENANCE TECHNICIAN
12
X
A
j
k
11
j
k
3-15e
37
3.22 VARIABLE HEAT OUTPUT.
N.B.: the power data in the table has been ob-
Gas nozzle diametermm3,603,60
Flue ow rate at nominal heat outputkg/h2020
Flue ow rate at min heat outputkg/h33
CO2 at Q. Nom./Min.% ± 0.29,20 / 9,0010,20 / 10,00
CO with 0% O2 at Nom./Min. Q. Nom./Min.ppm55 / 10105 / 112
NOX at 0% of O2 at Q. Nom./Min.mg/kWh33 / 2434 / 29
Flue temperature at nominal output°C5151
Flue temperature at minimum output°C4747
Victrix 20X TT 2 ErP
Gas nozzle diametermm5,155,15
Flue ow rate at nominal heat outputkg/h3536
Flue ow rate at min heat outputkg/h55
CO2 at Q. Nom./Min.% ± 0.29,10 / 9,0010,10 / 10,00
CO with 0% O2 at Nom./Min. Q. Nom./Min.ppm115 / 10205 / 10
NOX at 0% of O2 at Q. Nom./Min.mg/kWh35 / 2030 / 25
Flue temperature at nominal output°C6975
Flue temperature at minimum output°C5356
Heat loss at ue with burner On/O (80-60°C)%0,02 / 1,80,01 / 3,0
Central heating circuit max. operating pressurebar33
Maximum heating temperature°C9090
Adjustable heating temperature (max operation eld)°C20 - 8520 - 85
System expansion vessel total volumel5,85,8
Expansion vessel factory-set pressurebar1,01,0
Appliance water contentl1,91,9
Head available with 1000 l/h ow ratekPa (m H2O)37,2 (3,8)37,2 (3,8)
* Hot water production useful heat outputkW (kcal/h)12,3 (10575)21,3 (18308)
* Domestic hot water adjustable temperature°C10 - 6010 - 60
* Flow rate capacity in continuous duty (∆T 30°C)l/min-12,2
Weight of full boilerkg33,933,9
Weight of empty boilerkg32,032,0
Electrical connectionV/Hz230 / 50230 / 50
Nominal power absorptionA0,630,69
Installed electric powerW9090
Pump absorbed powerW5959
EEI-≤ 0,20 - Part. 3≤ 0,20 - Part. 3
Fan power absorbed powerW1922
Equipment electrical system protection-IPX5DIPX5D
Temperature of combustion products°C7575
NOX class-55
Weighted NO
Weighted COmg/kWh18,020,4
- e ue temperature values refer to an air inlet
temperature of 15°C and ow temperature of
50°C.
- The maximum sound level emitted during
boiler operation is < 55dBA. e sound level
value is referred to semianechoic chamber tests
with the boiler operating at max. heat output,
MAINTENANCE TECHNICIAN
with extension of the ue gas exhaust system
according to product standards.
- * When the boiler is connected to an external
storage tank unit.
40
3.25 KEY FOR DATA NAMEPLATE.
MdCod. Md
Sr N°CHKCod. PIN
Type
Qnw/Qnmin.Qnw/Qnmax.
Pnmin.Pnmax.
PMSPMWDTM
NOx Class
N.B.: the technical data is provided on the data plate on the boiler
IE
MdModel
Cod. MdModel code
Sr N°Serial Number
CHKCheck
Cod. PINPIN code
Typ eType of installation (ref. CEN TR 1749)
Qnwmin.Minimum DHW heat input
Qnmin.CH minimum heat input
Qnwmax.DHW maximum heat input
Qnmax.CH maximum heat input
Pnmin.Minimum heat output
Pnmax.Maximum heat output
PMSMaximum system pressure
PMWMaximum domestic hot water pressure
DSpecic ow rate
TMMaximum operating temperature
NOx ClassNOx Class
CONDENSING Condensing boiler
CONDENSING
41
3.26 TECHNICAL PARAMETERS FOR MIXED BOILERS IN COMPLIANCE WITH REGULATION 813/2013.
e yields in the following tables refer to the higher heating value.
Model/s:Victrix 12 X TT 2 ErP
Condensing boiler:YES
Low-temperature boiler:NO
B1 boiler:NO
Cogeneration space heater:NOEquipped with a supplementary heater:NO
Combination heater:YES
ItemSymbolValueUnitItemSymbolValu eUnit
Rated heat outputP
For boiler space heaters and boiler combination heaters: useful heat
output
At rated heat output and high-tempera-
ture regime (*)
At 30 % of rated heat output and
low-temperature regime (**)
P
P
12kWSeasonal space heating energy eciencyη
n
For boiler space heaters and boiler combination heaters: Useful eciency
4
1
12,0kW
3,6kW
At rated heat output and high-temperature regime (*)
At 30 % of rated heat output and
low-temperature regime (**)
92%
s
η
η
4
1
88,3%
98,2%
Auxiliary electricity consumptionOther items
At full loadel
At part loadel
In standby modeP
0,019kWStandby heat lossP
max
0,013kWIgnition burner power consumptionP
min
0,005kWEmissions of nitrogen oxidesNO
SB
stby
ign
X
0,064kW
0,000kW
23
mg /
kWh
For combination heaters:
Declared load proleWater heating energy eciencyη
Daily electricity consumptionQ
elec
kWhDaily fuel consumptionQ
WH
fuel
kWh
Contact detailsIMMERGAS S.p.A. VIA CISA LIGURE, 95 - 42041 BRESCELLO (RE) ITALY
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature.
%
Model/s:Victrix 20 X TT 2 ErP
Condensing boiler:YES
Low-temperature boiler:NO
B1 boiler:NO
Cogeneration space heater:NOEquipped with a supplementary heater:NO
Combination heater:YES
ItemSymbolValueUnitItemSymbolValu eUnit
Rated heat outputP
For boiler space heaters and boiler combination heaters: useful heat
output
At rated heat output and high-tempera-
ture regime (*)
At 30 % of rated heat output and
low-temperature regime (**)
P
P
21kWSeasonal space heating energy eciencyη
n
For boiler space heaters and boiler combination heaters: Useful eciency
4
1
20,5kW
6,2kW
At rated heat output and high-temperature regime (*)
At 30 % of rated heat output and
low-temperature regime (**)
93%
s
η
η
4
1
87,6%
98,3%
Auxiliary electricity consumptionOther items
At full loadel
At part loadel
In standby modeP
0,032kWStandby heat lossP
max
0,013kWIgnition burner power consumptionP
min
0,005kWEmissions of nitrogen oxidesNO
SB
stby
ign
X
0,064kW
0,000kW
25
mg /
kWh
For combination heaters:
Declared load proleWater heating energy eciencyη
Daily electricity consumptionQ
elec
kWhDaily fuel consumptionQ
WH
fuel
%
kWh
Contact detailsIMMERGAS S.p.A. VIA CISA LIGURE, 95 - 42041 BRESCELLO (RE) ITALY
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature.
42
3.27 PRODUCT DATA SHEET IN COMPLIANCE WITH REGULATION 811/2013.
Victrix 12X TT 2 ErPVictrix 20X TT 2 ErP
++
A
+
A
A
B
C
D
E
F
G
50 dB
VICTRIX 12 X TT 2 ErP
12kW
A
++
A
+
A
A
B
C
D
E
F
G
48 dB
VICTRIX 20 X TT 2 ErP
A
21kW
Parametervalue
Yearly energy consumption for the heating
function (QHE)
Yearly electricity consumption for the
domestic hot water function (AEC)
Yearly fuel consumption for the domestic
hot water function (AFC)
Seasonal room heating yield (ηs)92 %
Domestic hot water production yield (
ηwh)
For proper installation of the appliance refer
to chapter 1 of this booklet (for the installer)
and current installation regulations. For proper
maintenance refer to chapter 3 of this booklet (for
the maintenance technician) and adhere to the
frequencies and methods set out herein.
21,8 GJ
Parametervalue
Yearly energy consumption for the heating
function (QHE)
--
--
--
Yearly electricity consumption for the
domestic hot water function (AEC)
Yearly fuel consumption for the domestic
hot water function (AFC)
Seasonal room heating yield (ηs)93 %
Domestic hot water production yield (
ηwh)
36,4 GJ
--
--
--
43
3.28 PARAMETERS FOR FILLING IN THE
ASSEMBLY SHEET.
In case you should wish to install an assembly,
starting from the Victrix 12X-20X TT 2 ErP boiler, use the assembly charts in g. 3-18 and 3-21.
For correctly lling in, enter the gures shown in
tables g. 3-17 and 3-20 (as shown in the facsimile assembly sheet g. 3-16 and 3-19).
Facsimile for lling in room heating system assembly chart.
Seasonal space heating energy efciency of boiler
e remaining values must be obtained from
the technical data sheets of the products used
to make up the assembly (e.g. solar devices, integration heat pumps, temperature controllers).
Use sheet g. 3-18 for “assemblies” related to
the heating function (e.g.: boiler + temperature
controller).
Use sheet g. 3-21 for “assemblies” related to the
domestic hot water function (e.g.: boiler + solar
thermal system).
1
‘I’
%
Temperature control
From che of
temperature control
Supplementary boiler
From che of boiler
Solar contribution
From che of solar device
Collector size
(in m2)
( ‘III’ x + ‘IV’ x ) x (0.9 x ( / 100) x =
Supplementary heat pump
From che of heat pump
Solar contribution and Supplementary heat pump
Select smaller value
Seasonal space heating energy efciency of package
Class I = 1 %, Class II = 2 %,
Class III = 1.5 %, Class IV = 2 %,
Class V = 3 %, Class VI = 4 %,
Class VII = 3.5 %, Class VIII = 5 %
Seasonal space heating energy efciency
( - ‘I’ ) x 0.1 =
Tank volume
(in m3)
0.5 x OR 0.5 x =
Collector efciency
Seasonal space heating energy efciency
(in %)
( - ‘I’ ) x ‘II’ =
45
(in %)
(in %)
Tank
rating
A* = 0.95, A = 0.91,
B = 0.86, C = 0.83,
D-G = 0.81
+
±
+
+
-
2
%
3
%
4
%
5
%
6
%
7
%
Seasonal space heating energy efciency class of package