Immergas VICTRIX 26 2 I User manual

VICTRIX 26 2 I
Instruction booklet and
warning IE
*1.036644ENG*

Immergas S.p.A. declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial
documents without forewarning.
DECLARATION OF CONFORMITY
For the purpose and eect of the 2009/142/CE Gas Appliance Directive, 2004/108/CE EMC Directive, 92/42/CE Eciency Directive and 2006/95/
CE Low Voltage Directive.
e Manufacturer: Immergas S.p.A. v. Cisa Ligure n° 95 42041 Brescello (RE)
DECLARES THAT: the Immergas boiler model:
Victrix 26 2 I
is in compliance with the same European Community Directives
Mauro Guareschi
Research & Development Director
Signature:
Dear Customer,
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 qualied aer-sales service, prepared and updated to guarantee constant eciency 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 conrm your satisfaction for the Immergas product.
Contact our area authorised aer-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 Aer-Sales centres: they have original spare parts and are specically trained directly
by the manufacturer.
General recommendations
All Immergas products are protected with packaging suitable for transport.
e material must be stored in dry environments and protected from 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 instruction booklet contains technical information on how installing Immergas boilers. For other issues related to installation of boilers (i.e.: safety in work
sites, environment protection, injury prevention), comply with the laws in force and technical standards.
In compliance with legislation in force, the systems must be designed by qualied 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 qualied
sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law.
Improper installation or assembly of Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to persons, animals
and objects. Read the provided product instructions carefully in order to install the product correctly.
Maintenance must be carried out by skilled technical sta. e Immergas Authorised Aer-sales Service represents a guarantee of qualications and profes-
sionalism.
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 fol-
lowing address: www.immergas.com

INDEX
USER pageINSTALLER page MAINTENANCE TECHNICIAN page
1 Boiler installation......................................5
1.1 Installation recommendations.................5
1.2 Main dimensions.......................................6
1.3 Anti-freeze protection. .............................6
1.4 Connection unit (supplied as standard
with the boiler)..........................................7
1.5 Remote controls and room chrono-
thermostats (Optional).............................8
1.6 External probe (Optional). ......................8
1.7 Immergas ue systems..............................9
1.8 Tables of resistance factors and
equivalent lengths. ....................................9
1.9 Outdoor installation in partially
protected area. .........................................11
1.10 Horizontal concentric kit installation. .12
1.11 Vertical concentric kit installation........13
1.12 Separator kit installation........................14
1.13 Adapter kit installation C9. ...................15
1.14 Ducting of ues or technical slots.........16
1.15 Conguration type B23 open chamber
and forced draught for inside. ...............16
1.16 Flue exhaust to ue/chimney.................16
1.17 Flues, chimneys, chimney caps and
terminals...................................................17
1.18 System lling............................................17
1.19 Filling the condensate trap.....................17
1.20 Gas system start-up.................................17
1.21 Boiler start up (ignition)........................17
1.22 Circulation pump....................................18
1.23 Kits available on request.........................18
1.24 Boiler components..................................19
2 Instructions for use and maintenance..20
2.1 Cleaning and maintenance. ...................20
2.2 General warnings....................................20
2.3 Control panel...........................................20
2.4 Using the boiler........................................20
2.5 Fault and anomaly signals......................21
2.6 Information menu...................................22
2.7 Boiler shutdown ......................................23
2.8 Restore heating system pressure............23
2.9 Draining the system................................23
2.10 Anti-freeze protection. ...........................23
2.11 Case cleaning. ..........................................23
2.12 Decommissioning...................................23
3 Boiler commissioning (Initial check)...24
3.1 Hydraulic diagram. .................................24
3.2 Wiring diagram.......................................25
3.3 Troubleshooting ......................................25
3.4 Converting the boiler to other
types of gas...............................................26
3.5 Calibration of number of fan revs.........26
3.6 Adjustment of the air-gas ratio..............26
3.7 Checks following conversion to another
type of gas.................................................26
3.8 Programming the P.C.B..........................27
3.9 Solar panels coupling function..............29
3.10 "Chimney sweep” function. ...................29
3.11 Pump anti-block function......................29
3.12 ree-way anti-block system.................29
3.13 Radiators anti-freeze function...............29
3.14 P.C.B. periodical self-check....................29
3.15 Automatic vent function. .......................29
3.16 System supervision coupling function. 29
3.17 Yearly appliance check and
maintenance.............................................29
3.18 Casing removal........................................30
3.19 Variable heat power.................................31
3.20 Combustion parameters.........................31
3.21 Technical data..........................................32
3.22 Data plate key...........................................33

5
SI NO
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1BOILER INSTALLATION
1.1 INSTALLATION
RECOMMENDATIONS.
The Victrix 26 2 I boiler has been designed
for wall mounted installation only; for heating
environments and production of domestic hot
water for domestic use and similar purposes.
e installation site and relative Immergas ac-
cessories must have suitable characteristics (both
technical and structural), in order to allow (al-
ways in safe, eciency and easiness conditions):
- installation (according to the legislation and
technical standards in force);
- maintenance operations (including those
scheduled, periodical, ordinary and special);
- removal (to the outdoors in a place suitable
for loading and transporting appliances and
components) as well as any replacement with
equivalent appliances and/or 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
classication of the boiler also varies, precisely:
- Type B23 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
the sealed chamber boiler for intake of air and
expulsion of fumes.
Only professionally enabled heating/plumbing
technicians 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
sucient 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 flue
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 with the blocked conveyor
system (remember that the safety valve must
always be conveyed away by a draining funnel), or
if there are leaks from the hydraulic connections;
on the contrary, the manufacturer cannot be
held responsible for any damage caused to the
household appliances.
It is also advisable, to not position furnishings,
furniture, etc., under the boiler for the above
mentioned reasons.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o immediately
and contact a qualified technician (e.g. the
Immergas Technical Assistance centre, which
has specically 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 Standards:
- is 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...).
- Installation in places with a fire risk is
prohibited (for example: garages, box), gas
appliances and relative ue ducts, ue exhaust
pipes and combustion air intake pipes.
- Installation is prohibited on the vertical
projection of the cooking surface.
- Installation is also prohibited in places/
environments that constitute common parts
of oce condominiums such as stairs, cellars,
entrance halls, attics, los, 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 current technical
regulations).
Important: wall mounting of the boiler must
guarantee stable and ecient support for the
generator.
e plugs (standard supply) are to be used only in
conjunction with the mounting brackets or xing
template 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.
N.B.: the hex head screws supplied in the blister
pack are to be used exclusively to x the relative
mounting bracket to the wall.
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.
YES NO
Fig. 1-1

6
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.2 MAIN DIMENSIONS.
Key:
V - Electrical connection
G - Gas supply
AC - Domestic hot water outlet
ACV - Solar valve kit DHW inlet (optional)
AF - Domestic cold water inlet
SC - Condensate drain (minimum internal diameter Ø 13 mm)
R - System return
M - System ow
Height
(mm) Width (mm) Depth (mm)
795 440 250
CONNECTIONS
GAS DOMESTIC
HOT WATER SYSTEM
GAC AF R M
3/4”* 1/2” 1/2” 3/4” 3/4”
N.B.: connection group (optional)
1.3 ANTIFREEZE 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.
e anti-freeze function is only guaranteed if:
- the boiler is correctly connected to gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in stand-by ( );
- the boiler is not in no ignition block (par. 2.6);
- the boiler essential components are not faulty.
In these conditions the boiler is protected against
freezing to an environmental temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature falls
below -5°C and in the event there is no gas (or
the boiler goes into ignition block), the appliance
can freeze.
To prevent the risk of freezing follow the
instructions below:
- protect the central heating circuit from freezing
by introducing a top quality anti-freeze liquid
into this circuit, which is not noxious to health.
e instructions of the manufacturer of this
liquid must be followed 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 resist ethylene and propylene
glycol based antifreeze liquids (if the mixtures are
prepared perfectly).
For life and possible disposal, follow the supplier’s
instructions.
- Protect the condensate drain trap and circuit
board 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).
Boiler anti-freeze protection is thus ensured only if:
- the boiler is correctly connected to gas and
electricity power supply circuits and powered;
- the anti-freezing kit components are ecient.
In these conditions the boiler is protected against
freezing to temperature of -15°C.
The warranty does not cover damage due to
interruption of the electrical power supply and
failure to comply with that stated on the previous
page.
N.B.: if the boiler is installed in places where the
temperature falls below 0°C the domestic water
and heating attachment pipes must be insulated.
Fig. 1-2

7
CAVO ALIMENTAZIONE
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.4 CONNECTION UNIT SUPPLIED AS
STANDARD WITH THE BOILER.
Gas connection (Appliance category II2H3B/P).
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 eciency. Also
make sure the gas corresponds to that for which
the boiler is prepared (see boiler data-plate).
If dierent, 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 be in compliance, as
insucient 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 to the burner even
in conditions of maximum generator output
and to guarantee appliance eciency (technical
specifications). The coupling system must
conform to standards.
Fuel gas quality. The appliance has been
designed to operate with gas free of impurities;
otherwise it is advisable to fit special filters
upstream from the appliance to restore the
purity of the gas.
Storage tanks (in case of supply from LPG
depot).
- 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.
Hydraulic connection.
Attention: In order not to void the warranty
before making the boiler connections, carefully
clean the heating system (pipes, radiators, etc.)
with special pickling or de-scaling products to
remove any deposits that could compromise
correct boiler operation.
A chemical treatment for the thermal system
water is prescribed according to the current
technical regulations, until the system and the
lime scale apparatus is preserved (for example,
limescale deposits), from the slurry formation
and other noxious deposits.
Water connections must be made in a rational
way using the couplings on the boiler template.
e boiler safety valve outlet must be connected
to a draining funnel. Otherwise, the manufacturer
declines any responsibility in case of ooding if
the drain valve cuts in.
Important: to preserve the duration of appliance
eciency features, in the presence of water whose
features can lead to the deposit of lime scale,
installation of the “polyphosphate dispenser” kit
is recommended.
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 having an
internal diameter 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 start-up, ensure that the condensate
can be correctly removed. Also, comply with
national and local regulations on discharging
waste waters.
Electrical connection: e “Victrix 26 2 I” boiler
has an IPX4D protection rating for the entire
appliance. Electrical safety of the appliance is
reached only when it is correctly connected to an
ecient earthing system as specied 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
ecient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation
corresponds to maximum absorbed power
specications as shown on the boiler data-plate.
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 . is network must also have
an omnipolar circuit breaker with class III over-
voltage category.
To protect against possible voltage dispersions,
it is necessary to envision a dierential safety
device type A.
When replacing the power supply cable, contact
a qualied technician (e.g. the Immergas Aer-
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.
POWER SUPPLY CABLE
Fig. 1-3

8
Unità bollitore
Solo Plus e X
Il ponte X40 deve essere eliminato qualora si colleghi il termostato ambiente o il CAR V2
La resistenza R8 (presente solo su versioni Plus e X) deve essere eliminata qualora si
colleghi l’unità bollitore
Termostato
ambiente
CAR V2
Sonda
esterna
Sonda ingresso
sanitario
(NO Plus e X)
Segnale di stato
scheda a zone
1
2 3
5
4
6
45
31
58
1
2
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.5 REMOTE CONTROLS AND
ROOM CHRONOTHERMOSTATS
OPTIONAL.
e boiler is prepared for the application of room
chrono-thermostats or remote controls, which
are available as optional kits. (Fig. 1-4)
All Immergas chrono-thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the accessory
kit.
• On/O digital chrono-thermostat. e chrono-
thermostat allows:
- to set two room temperature values: one for
day (comfort temperature) and one for night
(lower temperature);
- set a weekly program with four daily switch-on/
o;
- selecting the required function mode from the
various possible alternatives:
- manual operation (with adjustable tempera-
ture).
- automatic operation (with set program).
- forced automatic operation (temporarily
modifying the temperature of the automatic
program).
e chrono-thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto Remote Control
DeviceV2 CARV2) (Fig. 1-4) 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 of easily intervening on the
previously set parameters without having to
go to the place where the appliance is installed.
The Comando Amico RemotoV2 Remote
Control panel is provided with self-diagnosis
to display any boiler operating anomalies.
e 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. It also allows to display the
eective room temperature and the external
temperature (if external probe is present).
e chrono-thermostat is fed directly by the
boiler by means of the same 2 wires used for
the transmission of data between boiler and
chrono-thermostat.
Important: if the system is divided into zones
using the relevant kit. the CAR V2 must be used
with its climate thermostat function disabled, i.e.
it must be set to On/O mode.
CARV2 or chrono-thermostat On/O electric
connection (Optional). e operations described
below must be performed aer having removed
the voltage from the appliance. The eventual
On/O environment chrono-thermostat must
be connected to clamps 40 and 41 eliminating
jumper X40 (Fig. 1-5). Make sure that the On/
O thermostat contact is of the “clean” type,
i.e. independent of the mains supply, otherwise
the P.C.B. would be damaged. Any CARV2 must
be connected by means of terminals +and - to
clamps 41 and 44 on the P.C.B. (in boiler),
eliminating jumper X40 and respecting polarity
(Fig. 1-5). Connection with the wrong polarity
prevents functioning, but without damaging the
CARV2. e boiler can only be connected to one
remote control.
Important: If the CARV2 remote control 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 this risk
is eliminated before making the boiler electrical
connections.
Installation with system operating at direct
low temperature. e boiler can directly feed a
low temperature system by acting on parameters
“S5” and S6” (par. 3.8). In this situation it is good
practice to insert a relevant safety kit (optional)
made up from a thermostat (with adjustable
temperature). e thermostat must be positioned
on the system ow pipe.
1.6 EXTERNAL PROBE OPTIONAL.
e boiler is prepared for the application of the
external probe (Fig. 1-6), which is available as an
optional kit. Refer to the relative instruction sheet
for positioning of the external probe.
The 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 positioned under
the sealed chamber (Fig. 3-2).
Key:
1 - Only Plus and X storage
tank unit
2 - External probe
3 - DHW inlet probe (NO Plus
and X)
4 - Zones control unit status
signal
5 - Room thermostat
6 - Comando Amico Remoto
remote controlV2 (CARV2)
Jumper X40 must be eliminated whenever the room thermostat or CARV2 are connected. e resistance R8
(present only on Plus and Xversions) must be eliminated whenever the Storage tank Unit is connected
Fig. 1-4
Fig. 1-5
Fig. 1-6 Fig. 1-7
Key:
1 - Position of the central
heating temperature user
adjustment
2 - In brackets, temperature
value with 25°/50° range
TM - Flow Temperature (°C)
TE - External Temperature (°C)

9
(A)
(B)
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.7IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the boilers regarding the installation of air
intake terminals and ue extraction, which are
fundamental for boiler operation.
Attention: the boiler must be installed
exclusively with an original Immergas “Green
Range” air intake and fume extraction system
in plastic, as envisioned by Standard in force.
e plastic pipes cannot be installed outdoors,
for tracts longer than 40cm, without suitable
protection fromUV rays and otheratmospheric
agents.
This system can be identified by an
identification mark and special distinctive
marking bearing the note: “only for condensing
b o i l e r s ”.
• Resistance factors and equivalent lengths.
Each ue component has a Resistance Factor
based on experimental tests and specified
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, obtained from the
ratio between the relative Resistance Factors.
All boilers have an experimentally obtainable
maximum Resistance Factor equal to 100.
The maximum Resistance Factor allowed
corresponds to the resistance encountered with
the maximum allowed pipe length for each
type of Terminal Kit. is information allows
calculations to be made to verify the possibility
of setting up various ue congurations.
• Positioning of the gaskets (black) for “green
range” ue extraction systems. Position the
gasket correctly (for bends and extensions)
(Fig. 1-8):
- gasket (A) with notches, to use for bends;
- gasket (B) without notches, to use for
extensions.
N.B.: if component lubrication (already carried
out by the manufacturer) is not sufficient,
remove the residual lubricant using a dry cloth,
then to ease tting spread the elements with
common or industrial 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 section
(with lip seal) to the end stop on the previously
installed element in order to ensure sealing
eciency of the coupling.
Attention: if the exhaust terminal and/or
extension concentric 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
temporarily.
• N.B.: when installing horizontal pipes,
a minimum inclination of 3%must be
maintained and a section clamp with pin must
be installed every 3 metres.
Fig. 1-8
1.8TABLES OF RESISTANCE FACTORS
AND EQUIVALENT LENGTHS.
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent
length in m of
concentric pipe
Ø80/125
Concentric pipe Ø80/125 m 1 2.1 1
Concentric bend 90° Ø80/125 3.0 1.4
Concentric bend 45° Ø80/125 2.1 1
Terminal complete with concentric
horizontal intake-exhaust Ø80/125 2.8 1.3
Terminal complete with concentric
vertical intake-exhaust Ø80/125 3.6 1.7
Concentric bend 90° Ø80/125 with
inspection 3.4 1.6
Stub pipe with inspection Ø80/125 3.4 1.6

10
INSTALLATORUSER
MAINTENANCE TECHNICIAN
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent
length in m of
concentric pipe
Ø60/100
Equivalent
length in metres
of pipe Ø80
Equivalent
length in metres
of pipe Ø60
Equivalent
length in m of
concentric pipe
Ø80/125
Concentric pipe Ø60/100
m 1
Intake and
Exhaust 6.4 m 1 Intake m 7.3 Exhaust m 1.9 m 3.0
Exhaust m 5.3
Concentric bend 90°
Ø60/100
Intake and
Exhaust 8.2 m 1.3 Intake m 9.4 Exhaust m 2.5 m 3.9
Exhaust m 6.8
Concentric bend 45°
Ø60/100
Intake and
Exhaust 6.4 m 1 Intake m 7.3 Exhaust m 1.9 m 3.0
Exhaust m 5.3
Terminal complete with
concentric horizontal
intake-exhaust Ø60/100
Intake and
Exhaust 15 m 2.3
Intake m 17.2
Exhaust m 4.5 m 7.1
Exhaust m 12.5
Concentric horizontal
intake- exhaust terminal
Ø60/100
Intake and
Exhaust 10 m 1.5 Intake m 11.5 Exhaust m 3.0 m 4.7
Exhaust m 8.3
Terminal complete with
concentric vertical intake-
exhaust Ø60/100
Intake and
Exhaust 16.3 m 2.5
Intake m 18.7
Exhaust m 4.9 m 7.7
Exhaust m 13.6
Concentric vertical intake-
exhaust terminal Ø60/100
Intake and
Exhaust 9 m 1.4
Intake m 10.3
Exhaust m 2.7 m 4.3
Exhaust m 7.5
Pipe Ø80, 1 m Intake 0.87 m 0.1 Intake m 1.0Exhaust m 0.4 m 0.4
m 0.5
Exhaust 1.2 m 0.2 Exhaust m 1.0
Complete intake terminal
Ø80, 1 m Intake 3 m 0.5 Intake m 3.4 Exhaust m 0.9 m 1.4
Intake terminal Ø80
Exhaust terminal Ø80
Intake 2.2 m 0.35 Intake m 2.5 Exhaust m 0.6 m 1
m 0.9
Exhaust 1.9 m 0.3 Exhaust m 1.6
Bend 90° Ø80 Intake 1.9 m 0.3 Intake m 2.2 Exhaust m 0.8 m 0.9
m 1.2
Exhaust 2.6 m 0.4 Exhaust m 2.1
Bend 45° Ø80 Intake 1.2 m 0.2 Intake m 1.4 Exhaust m 0.5 m 0.5
0.7
Exhaust 1.6 m 0.25 Exhaust m 1.3
Pipe Ø60 m 1 for ducting Exhaust 3.3 m 0.5 Intake 3.8 Exhaust m 1.0m 1.5
Exhaust 2.7
Bend 90° Ø60 for ducting Exhaust 3.5 m 0.55 Intake 4.0 Exhaust m 1.1 m 1.6
Exhaust 2.9
Reduction Ø80/60 Intake and
Exhaust 2.6 m 0.4 Intake m 3.0 Exhaust m 0.8m 1.2
Exhaust m 2.1
Terminal complete with
exhaust vertical Ø60 for
ducting
Exhaust 12.2 m 1.9
Intake m 14
Exhaust m 3.7m 5.8
Exhaust m 10.1

11
INSTALLATORUSER
MAINTENANCE TECHNICIAN
Fig. 1-12
Fig. 1-10
Fig. 1-9
e cover kit includes:
N° 1 Heat moulded cover
N° 1 Gasket clamping plate
N° 1 Gasket
N° 1 Gasket clamp
N° 1 Intake hole covering plate
e terminal kit includes:
N° 1 Gasket
N° 1 Exhaust ange Ø80
N° 1 Bend 90° Ø80
N° 1 Exhaust pipe Ø80
N° 1 Wall sealing plate
Fig. 1-11
VERTICAL TERMINAL KIT
FOR DIRECT DRAINING
INTAKE COVER KIT
1.9OUTDOOR INSTALLATION IN
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...).
•Conguration type B, open chamber and
forced draught.
Using the relevant cover kit direct air intake is
possible (Fig. 1-9) and combustion products
are exhausted into a single ue or directly to the
outside. In this conguration it is possible to
install the boiler in a partially protected place.
In this conguration the boiler is classied as
type B23.
With this conguration:
- air intake takes place directly from the
environment in which the appliance is installed
(external);
- the ue exhaust must be connected to its own
individual ue or channelled directly into the
external atmosphere.
The technical regulations in force must be
respected.
• 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 two previously-removed screws. Install the
Ø80 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° Ø80 bend
with the male side (smooth) in the female side
(with lip seal) of the Ø80 ange 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 side (smooth) of the exhaust terminal
into the the female side of the bend 90° Ø80,
making sure that the relevant wall sealing plate
is already tted; this will ensure the hold and
joining of the elements making up the kit.
Max. length of exhaust duct. The flue pipe
(vertical or horizontal) can be extended to a max.
length of 30 straight 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. is will ensure
sealing eciency of the coupling.
Example of installation with direct vertical
terminal in partially protected location. When
the vertical terminal for direct discharge of
combustion products is used, a minimum gap
of 300 mm must be le between the terminal
and the balcony above. e height X+Y+Z+W
evaluated with respect to the balcony above,
must be equal to or more than 2000 mm. (Fig.
1-10). e term W must only be considered if the
balcony above has closed balustrade (W=0 if the
balustrade is open).
•Conguration 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 and Ø80/125 concentric intake/
exhaust and separator Ø80/80 kits. Refer to
the paragraph relative to indoor installation.
In this configuration the upper cover kit
guarantees additional protection for the boiler.
It is recommended but not compulsory.

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INSTALLATORUSER
MAINTENANCE TECHNICIAN
C13
C13 C13
C13
Fig. 1-13 Fig. 1-14
e kit includes:
N° 1 - Gasket (1)
N° 1 - Concentric bend Ø60/100 (2)
N° 1 - Concentric intake-exhaust terminal Ø60/100 (3)
N° 1 - Internal wall sealing plate (4)
N° 1 - External wall sealing plate (5)
Fig. 1-15 Fig. 1-16
e adapter Kit includes:
N° 1 - Gasket (1)
N° 1 - Adapter
Ø80/125 (2)
1.10HORIZONTAL CONCENTRIC KIT
INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Horizontal intake - exhaust kit Ø60/100. Kit
assembly (Fig. 1-13): install the bend with ange
(2) on the central hole of the boiler, positioning
the gasket (1) (which does not require lubrication)
positioning it with the circular projections
downwards in contact with the boiler ange
and tighten using the screws preset in the kit.
Fit the Ø60/100 (3) concentric terminal pipe
with the male end (smooth) to the female end
of the bend (2) up to the 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 horizontal kit Ø60/100
(Fig. 1-14). e kit with this conguration can
be extended up to a max. horizontal distance
of 12.9 m including the terminal with grid
and excluding the concentric bend leaving
the boiler. is conguration corresponds to
a resistance factor of 100. In these cases the
special extensions must be requested.
Horizontal intake - exhaust kit Ø80/125. Kit
assembly (Fig. 1-15): for the installation of kit
Ø80/125 the anged adapter kit must be used to
be able to install the ue system Ø80/125. Install
the anged adapter (2) on the central hole of the
boiler, positioning the gasket (1) (which does not
require lubrication) with the circular projections
downwards in contact with the boiler flange
and tighten using the screws present in the kit.
Engage the bend (3) with the male side (smooth)
until it is fully home on the adapter (1). Fit the
Ø80/125 (5) concentric terminal pipe with the
male end (smooth) to the female end of the bend
(4) (with lip seal) up to the stop; making sure that
the internal (6) and external wall sealing plates
(7) have been tted, this will ensure sealing and
joining of the elements making up the kit.
• Extensions for horizontal kit Ø80/125
(Fig. 1-16). The kit with this configuration
can be extended up to a max. distance 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.
• External grid. N.B.: for correct functioning
of the system the terminal with grid must be
installed correctly ensuring that, the "high"
indication present on the terminal is respected
on installation.
e Kit Ø80/125 includes:
N° 1 - Concentric bend Ø80/125 at
87° (3)
N° 1 - Concentric intake-exhaust
terminal Ø80/125 (4)
N° 1 - Internal wall sealing plate (5)
N° 1 - External wall sealing plate (6)
e remaining components of the kit are
not to be used

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INSTALLATORUSER
MAINTENANCE TECHNICIAN
Fig. 1-18
Fig. 1-20
Fig. 1-19
e kit includes:
N° 1 - Gasket (1)
N° 1 - Female concentric ange (2)
N° 1 - Wall sealing plate (3)
N° 1 - Aluminium tile (4)
N° 1 - Int./exhaust concentric pipe
Ø60/100 (5)
N° 1 - Fixed half-shell (6)
N° 1 - Mobile half-shell (7)
e adapter Kit includes:
N° 1 - Gasket (1)
N° 1 - Adapter
Ø80/125 (2)
e Kit Ø80/125 includes:
N° 1 - Wall sealing plate (3)
N° 1 - Aluminium tile (4)
N° 1 - Fixed half-shell (5)
N° 1 - Mobile half-shell (6)
N° 1 - Int./exhaust concentric
pipe Ø80/125 (7)
e remaining components of the
kit are not to be used
Fig. 1-17
1.11 VERTICAL CONCENTRIC KIT
INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Vertical concentric of intake and exhaust kit.
is terminal enables the air intake and the ue
exhausts to be directly emitted outside the house
in a vertical direction.
N.B.: the vertical kit with aluminium tile
enables installation on terraces and roofs with
a maximum slope of 45%(approximately 25°)
and the height between the terminal cap and
half-shell (374 mm for Ø60/100 and 260 mm for
Ø80/125) must always be respected.
Vertical kit with aluminium tile Ø60/100.
Kit assembly (Fig. 1-17): install the concentric
flange (2) on the central hole of the boiler,
positioning the gasket (1) (which does not
require lubrication) with the circular projections
downwards in contact with the boiler ange and
tighten using the screws present in the kit.
Imitation aluminium tile installation: replace the
tile with the aluminium sheet (4), shaping it to
ensure that rainwater runs o. Position the xed
half-shell (6) and insert the intake-exhaust pipe
(5). Fit the Ø60/100 (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 Ø60/100 (Fig. 1-18).
The vertical kit with this configuration
can be extended to a max. straight vertical
length of 14.4 m including the terminal. is
conguration corresponds to a resistance factor
of 100. In this case the special extensions must
be requested.
Vertical kit with aluminium tile Ø80/125.
Kit assembly (Fig. 1-19): for the installation of kit
Ø80/125 the anged adapter kit must be used to
be able to install the ue system Ø80/125. Install
the anged adapter (2) on the central hole of the
boiler, positioning the gasket (1) (which does not
require lubrication) with the circular projections
downwards in contact with the boiler ange
and tighten using the screws preset in the kit.
Imitation aluminium tile installation: replace
the tile 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
Ø80/125 concentric terminal pipe with the male
end (smooth) to the female end of the adapter
(1) (with lip gasket) 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 Ø80/125 (Fig. 1-20).
e vertical kit with this conguration can be
extended 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 specic extensions must be requested.

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INSTALLATORUSER
MAINTENANCE TECHNICIAN
e kit includes:
N° 1 - Exhaust gasket (1)
N° 1 - Flange gasket (2)
N° 1 - Female intake ange (3)
N° 1 - Female exhaust ange (4)
N° 2 - Bend 90° Ø 80 (5)
N° 1 - Intake terminal Ø 80 (6)
N° 2 - Internal wall sealing plates (7)
N° 1 - External wall sealing plate (8)
N° 1 - Exhaust pipe Ø 80 (9)
Minimum slope 1.5%
C83
Fig. 1-23
C53 Fig. 1-22Fig. 1-21 C43
1.12 SEPARATOR KIT INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Separator kit Ø80/80.is kit allows the air
intake from outside the home and the flue
exhaust into a chimney or ue by means of the
separation of the ue exhaust pipes and air intake.
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 the ange (4)
on the central hole of the boiler, positioning the
gasket (1) (which does not require lubrication).
Position it with the circular projections
downwards in contact with the boiler ange
and tighten using the hex screws with flat
end present 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 section (smooth) in the
female section of the bend (5) up to the stop,
ensuring that the internal and external wall
sealing plates are tted. Fit the exhaust pipe
(9) with the male end (smooth) to the female
end of the bend (5) up to the 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 clearance (Fig. 1-22). e minimum
installation clearance measurements of the
Ø80/80 separator terminal kit have been stated
in some limit conditions.
• Extensions for Ø80/80 separator kit. The
maximum vertical straight length (without
bends) that can be used or Ø80 intake and
exhaust pipes is 41 metres, independently to
whether they are used for intake or exhaust.
e maximum horizontal straight length (with
bend in suction and in exhaust) that can be
used or Ø80 intake and exhaust pipes is 36
metres independently to whether they are used
for intake or exhaust.
N.B.: to favour the removalof possiblecondensate
forming in the exhaust pipe, tilt the pipes towards
the boilers with a min. slope of 1.5%. (Fig. 1-23).

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INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.13 ADAPTER KIT INSTALLATION C9.
e current kit allows for the installation of one
Immergas boiler in conguration "C93", carrying
out the combustion air intake directly from the
air sha where the ue exhausts are carried out
by means of a ducting system.
System composition.
e kit must be combined with the following
components (sold separately) to be functional
and complete:
- kit C93 version Ø100 or Ø125
- ducting kit Ø60 or Ø80
- flue exhaust kit Ø60/100 o Ø80/125
conguration based on the installation and
the type of boiler.
Kit assembly.
- Assemble the components of kit "C9" on door
(A) of the ducting system (Fig. 1-25).
- (Only version Ø125) install the adapter ange
(11) positioning the concentric gasket (10) on
the boiler and tighten using the screws in the
kit (12).
- Carry out the ducting system assembly as
described in the relative instructions sheet.
- Calculate the distance between the boiler
exhaust and the ducting system bend.
- Prepare the boiler ue by calculating that the
internal pipe of the concentric kit must engage
until the end stop in the ducting system bend
(quota "X" g. 1-26).
N.B.: to favour the removal of possible
condensate forming in the exhaust pipe, tilt
the pipes towards the boiler with a min. slope
of 1.5%.
- Assemble the lid (A) complete with adapter (1)
and wall plugs (6) and assemble the ue to the
ducting system.
N.B.: (only version Ø125) before assembling
check that the positioning of the gaskets is
correct. In the case the components lubrication
(already carried out by the manufacturer) is not
sucient, remove the residual lubricant using a
dry cloth, then to ease tting spread the elements
with common or industrial talc.
Once all the components are assembled correctly
the ue exhausts will be expelled by the ducting
systems, for the normal operation of the boiler
the combustion air will take in the air directly
from the air sha (Fig. 1-26).
Technical data.
- e dimensions of the air shas must guarantee
an minimum gap between the external wall of
the ue pipe and the internal wall of the air
sha: 30 mm per circular section air shas and
20 mm in the case of squared section air sha
(Fig. 1-24).
- On the vertical section of the ue a maximum
of 2 changes of direction with a maximum angle
of incidence of 30° with respect to the vertical.
- The maximum vertical extension using a
ducting system of Ø60 is 13 m, the maximum
extension includes 1 bend Ø60/10 at 90°, 1 m
of pipe 60/100 in horizontal, 1 bend 90° Ø60
ducted and the roof terminal for ducting.
For the determination of the ue system C93 in
dierent congurations than those previously
described (Fig. 1-26) it is necessary to consider
that 1 metre of ducted pipe according to the
indications described, has a resistance factor
equal to 4.9.
- The maximum vertical extension using a
ducting system of Ø80 is 28 m, the maximum
extension includes 1 adapter from 60/100 to
80/125, 1 m bend Ø80/125 to 87°, 1 m of pipe
80/125 in horizontal, 1 bend 90° Ø80 ducted
and the roof terminal for ducting.
For the determination of the ue system C93 in
dierent congurations than those previously
described (Fig. 1-26) it is necessary to consider
the following head loss:
- 1 m of pipe Ø1 m concentric duct Ø80/125
=1 m of ducted pipe;
- 1 bend at 87° =1.4 m of dusted pipe.
As a consequence it is necessary to subtract the
equivalent length of the added part to the 28 m
available.
Kit composition:
Ref. Qty Description
1 1 Door adapter Ø100 or Ø125
2 1 Door gasket in neoprene
3 4 Screws 4.2 x 9 AF
4 1 Screw TE M6 x 20
5 1 Flat washer in nylon M6
6 2 Door hole closure steel cap
7 1 Neoprene cap gasket
8 1 Toothed washer M6
9 1 Nut M6
10 1 (kit 80/125) Concentric gasket Ø60/-100
11 1 (kit 80/125) Flanged adapter Ø80/-125
12 4 (kit 80/125) ScrewsTE M4x 16at headscrewdriver
- 1 (kit 80/125) Lubricant talc bag
Installation drawings key:
Unmistakeable component identification
present in the kit
Identication component not supplied with
this kit
1
A
Fig. 1-25
Fig. 1-24 Rigid Ø80
Ducting
(A) mm
AIR
SHAFT
(B) mm
AIR
SHAFT
(C) mm
86 126 146
Flexible Ø80
Ducting
(A) mm
AIR
SHAFT
(B) mm
AIR
SHAFT
(C) mm
90 130 150
Rigid Ø60
Ducting
(A) mm
AIR
SHAFT
(B) mm
AIR
SHAFT
(C) mm
66 106 126
Supplied separately:
Ref. Qty Description
A 1 Ducting kit door

16
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INSTALLATORUSER
MAINTENANCE TECHNICIAN
Fig. 1-27
C83C93
Fig. 1-26
1.14 DUCTING OF FLUES OR
TECHNICAL SLOTS.
Ducting is an operation through which by the
introduction of one or more relevant pipes,
a system is realised 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 the use of 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 standards.
Immergas ducting system. e Ø60 rigid and
Ø80 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
environmental conditions, according to
current regulations (absence of combustion
products, 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
performed according to the indications
supplied by the manufacturer and in
compliance with the provisions in force.
- e max. possible length of the Ø60 exible
ducting vertical section is equal to 22 m. is
length is obtained considering the complete
Ø80 exhaust terminal, 1m of Ø80 pipe in
exhaust, two 90° Ø80 bends at boiler outlet.
- e max. possible length of the Ø80 exible
ducting vertical section is equal to 30 m.
This length is obtained considering the
complete exhaust terminal, 1m of Ø80 pipe
in exhaust, two 90° Ø80 bends at boiler outlet
for connecting to the ducting system and two
direction changes of the exible tube inside the
ue/technical slot.
- e max. possible length of the Ø60 exible
ducting vertical section is equal to 30 m. is
length is obtained considering the complete
Ø80 exhaust terminal, 1m of Ø80 pipe in
exhaust, two 90° Ø80 bends at boiler outlet.
1.15 CONFIGURATION TYPE B23
OPEN CHAMBER AND FORCED
DRAUGHT FOR INSIDE.
e appliance can be installed inside buildings in
B23 mode; in this eventuality, 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
damaging for the components of the appliance
and jeopardise functioning.
- In type B23 conguration, the boilers must not
be installed in bedrooms, bathrooms or in
bedsitters.
- The installation of appliances in B23
conguration is only recommended outdoors
(in a partially protected place) or in places that
are not lived in and which are permanently
ventilated.
For the installation it is necessary to use the cover
kit found in paragraph 1.9.
1.16 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
LAS type multiple ue. For B23 congurations,
exhaust is only allowed into individual flue
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 dier 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 dier 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, by
professionally qualied technical sta. Chimney
or ue sections for connection of the exhaust
pipe must comply with requisites of technical
standards in force.

17
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.17FLUES, CHIMNEYS, CHIMNEY CAPS
AND TERMINALS.
e ues, chimneys and chimney caps for the
evacuation of combustion products must be in
compliance with standards in force. e chimney
caps and the roof exhaust terminals must respect
the outlet quotas and the distance of the foreseen
technical volumes from the current technical
regulations.
Positioning the wall exhaust terminals. e
exhaust terminals must:
- be installed on external perimeter walls of the
building;
- be positioned according to the minimum
distances specified in current technical
standards.
Combustion products exhaust of natural or
fan assisted appliances in open-top closed
environments. In spaces closed on all sides
with open tops (ventilation pits, air shafts,
courtyards etc.), direct ue exhaust is allowed
for conventional or fan assisted draught gas
appliances with a heating power range from 4 to
35 kW, provided the conditions as per the current
technical standards are respected.
1.18SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling via the lling valve (Fig. 1-29 and
2-2). 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 air vent valves.
Close radiator vent valves when only water
escapes from them.
Close the lling valve when the boiler manometer
indicates approx. 1.2 bar.
N.B.: during these operations start/up the
circulation pump at intervals, acting on the main
switch positioned on the control panel. Vent the
circulation pump by loosening the front cap and
keeping the motor running. Re-tighten the cap
aer the operation.
1.19FILLING THE CONDENSATE TRAP.
On first lighting of the boiler combustion
products may come out the condensate drain;
aer a few minutes’ operation check that this no
longer occurs. is means that the trap is lled
with condensate to the correct level preventing
the passage of combustion products.
1.20GAS SYSTEM STARTUP.
To start up the system, refer to the current
regulations. This divides the systems and
therefore the start-up operations into three
categories: new systems, modied systems, re-
activated systems.
In particular, for new gas systems:
- open windows and doors;
- avoid presence of sparks or naked ames;
- bleed all air from pipelines;
- check that the internal system is properly sealed
according to specications.
1.21 BOILER START UP IGNITION.
For issue of the Declaration of Conformity
provided for by Italian Law, the following must
be performed for boiler start-up:
- check that the internal system is properly sealed
according to specications;
- ensure that the type of gas used corresponds to
boiler settings;
- switch the boiler on and ensure correct ignition;
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual ( Par. 3.18);
- ensure that the safety device is engaged in the
event of gas supply failure and check activation
time;
- check activation of the main switch located
upstream from the boiler and in the boiler;
- check that the concentric intake-exhaust
terminal (if tted) is not blocked.
e boiler must not be started up even if only
one of the checks should be negative.
N.B.: the boiler preliminary check must be carried
out by a qualied technician. e boiler warranty
is valid as of the date of testing.
e test certicate and warranty is issued to the
user.

18
A
B
C
D
INSTALLATORUSER
MAINTENANCE TECHNICIAN
Total head available to the system.
Head (m H2O)
Flow rate (l/h)
Head (kPa)
A = Head available to the system at
maximum speed with by-pass
excluded.
B = Head available to the system at
maximum speed with by-pass
inserted.
C = Head available to the system
at second speed with by-pass
excluded.
D = Head available to the system
at second speed with by-pass
inserted.
Fig. 1-28
1.22 CIRCULATION PUMP.
e “Victrix 26 2 I” series boilers are supplied
with a built-in circulation pump with 3-position
electric speed control. e boiler does not operate
correctly with the circulation pump on first
speed. To ensure optimal boiler operation, in the
case of new systems (single pipe and module) it
is recommended to use the pump at maximum
speed. e circulation pump is already tted
with a capacitor.
Pump release. If, aer 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. 30Fig. 1-29). If
necessary, the by-pass can be regulated according
to system requirements from a minimum (by-
pass excluded) to a maximum (by-pass inserted)
represented by the graphics (Fig. 1-28). Make the
regulation using a at head screwdriver, turn
clockwise and insert the by-pass, anti-clockwise
it is excluded.
1.23 KITS AVAILABLE ON REQUEST.
• System cut-off valve kits with or without
inspectionable lter (on request) e boiler
is designed for installation of system cut-o
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 central 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 on request.
• Polyphosphate dispenser kit (on request).
The 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.
e above-mentioned kits are supplied complete
with instructions for assembly and use.

19
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.24 BOILER COMPONENTS.
Key:
1 - Electric connection terminal board
(very low voltage)
2 - Condensate drain trap
3 - DHW heat exchanger
4 - Gas valve
5 - Domestic hot water ow switch
6 - Domestic hot water probe
7 - Air vent valve
8 - Flow probe
9 - Safety thermostat
10 - Gas nozzle
11 - Burner
12 - Detection electrode
13 - Condensation module
14 - Flue probe
15 - Heat exchanger safety thermofuse
16 - Manual air vent valve
17 - Sample points (air A) - (ue gases F)
18 - Negative signal pressure point
19 - Positive signal pressure point
20 - Igniter
21 - Ignition electrode
22 - Venturi
23 - Fan
24 - Air intake pipe
25 - System expansion vessel
26 - Return probe
27 - System pressure switch
28 - Boiler pump
29 - 3 bar safety valve
30 - By-pass
31 - 3-way valve (motorised)
32 - System draining valve
33 - System lling valve
N.B.: connection group (optional)
Fig. 1-29

20
INSTALLERUSER
MAINTENANCE TECHNICIAN
2INSTRUCTIONS FOR USE AND MAINTENANCE.
2.1 CLEANING AND MAINTENANCE.
Important: the heating systems must undergo
periodical maintenance (regarding this, see
the section dedicated to the technician, relative
to “yearly control and maintenance of the
appliance”) and regular checks of energy
eciency in compliance with national, regional
or local provisions in force.
is ensures that the optimal safety, performance
and operation characteristics of the boiler remain
unchanged over time.
We recommend stipulating a yearly cleaning and
maintenance contract with your zone technician.
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 anti-freeze 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 flue extraction and relative accessories,
switch o the appliance and on completion of
operations ensure that a qualied technician
checks eciency 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.
• Important: the use of components involving
use of electrical power requires some
fundamental 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
appliance exposed to atmospheric agents
(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
qualied sta for replacement;
- if the appliance is not to be used for a certain
period, disconnect the main power switch.
2.3 CONTROL PANEL.
Key:
1 - O/Stand-by/On Button
2 - Summer/Winter Button
3 - Reset button
4 - Information buttons
5 - Domestic hot water temperatureselector
switch
6 - Central heating water temperature selector
switch
7 - Boiler manometer
8 - DHW production phase functioning active
9 - Boiler in block does not require release
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 active phase functioning
14 - Temperature indicator, boiler info and error codes
15 - Boiler in Stand-by mode
16 - Presence of external connected devices
17 - Solar function active
18 - Functioning with external temperature
probe active (optional)
19 - Boiler connected to remote control V2
(optional)
20 - Not used on this model
2.4 USING THE BOILER.
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 (1) until the display switches
on. At this point, the boiler goes to the state
previous to switch-o.
- If the boiler is in stand-by, press the button (1)
again to activate it. If this is not the case, go to
the next point.
- Press button (2) in sequence and take the boiler
to summer ( ) or winter ( ) position.
• Summer ( ):in this mode the boiler
functions only to produce the DHW, the
temperature is set via the selector (5) and the
relative temperature is shown on the display
via the indicator (14).
•Winter ( ):in this mode the boiler functions
both for producing domestic hot water and
heating the environment. e temperature of
the DHW is always regulated via the selector
(5), the heating temperature is regulated via
selector (6) 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 (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
power scale.
Fig. 2-1