Immergas Victrix Superior 32 X 2 ERP Product manual

VICTRIX
SUPERIOR
32 X 2 ERP
Instruction and
warning book
IE
*1.037986ENG*

Dear Client,
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 any interventions or routine maintenance contact Authorised Centres: these have original spare parts and boast of specic preparation directly from 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. Instal-
lation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer’s instructions and by an authorised
company, which has specic technical expertise in the system sector, as required by 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 an authorised company. e Authorised Aer-sales Service represents a guarantee of qualication 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 fol-
lowing address: www.immergas.com.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manufacturing and aer-sales
assistance processes comply with the requirements of standard UNI EN ISO 9001:2008.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the appliance model
and the language of the country.
e manufacturer 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.

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
Gas connection ....................................................7
1.5 Hydraulic connection......................................... 7
1.6 Electrical connection..........................................7
1.7 Remote controls and room
chrono-thermostats (Optional). .......................8
1.8 External temperature probe (Optional)...........8
1.9 Immergas ue systems.......................................9
1.10 Tables of Resistance Factors and
Equivalent Lengths. ............................................9
1.11 Outdoor installation in partially
protected area. ...................................................11
1.12 Horizontal concentric kit installation............12
1.13 Vertical concentric kit installation. ................13
1.14 Separator kit installation..................................14
1.15 Adapter kit installation C9. ............................15
1.16 Ducting of ues or technical slots. .................16
1.17 Conguration type B open chamber
and forced draught for inside..........................16
1.18 Flue exhaust to ue/chimney...........................16
1.19 Flues, chimneys, chimney caps
and terminals.....................................................17
1.20 System lling. ....................................................17
1.21 Filling the condensate trap. .............................17
1.22 Gas system start-up. .........................................17
1.23 Boiler start up (ignition)..................................17
1.24 Circulation pump..............................................18
1.25 Kits available on request. .................................19
1.26 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 Description of functioning states. ..................21
2.5 Using the boiler. ................................................22
2.6 Troubleshooting................................................23
2.7 Boiler shutdown................................................25
2.8 Restore heating system pressure. ....................25
2.9 Draining the system..........................................25
2.10 Anti-freeze protection. ....................................25
2.11 Case cleaning.....................................................25
2.12 Decommissioning.............................................25
2.13 Parameters and information menu. ...............26
3 Boiler commissioning (initial check).............28
3.1 Hydraulic Diagram...........................................28
3.2 Wiring diagram.................................................29
3.3 Troubleshooting................................................29
3.4 Converting the boiler to other types of gas...30
3.5 Calibration of number of fan revs. .................30
3.6 Adjustment of the air-gas ratio. ......................31
3.7 Checks following conversion to
another type of gas............................................31
3.8 Programming the P.C.B....................................32
3.9 "Chimney sweep function" (F2)......................34
3.10 Pump anti-block function. ..............................34
3.11 three-way anti-block function (Optional).....34
3.12 Radiators anti-freeze function. .......................34
3.13 P.C.B. periodical self-check. ............................34
3.14 Automatic vent function..................................34
3.15 Solar panels coupling function (Optional)....34
3.16 Yearly control and maintenance of the
appliance. ...........................................................34
3.18 Variable heat power. .........................................36
3.19 Combustion parameters. .................................36
3.20 Technical data....................................................37
3.21 Data plate key.....................................................38
3.22 Technical parameters for mixed boilers (in
compliance with regulation 813/2013). .........39
3.23 Product data sheet (in compliance with
regulation 811/2013). .......................................39
3.24 Parameters for lling in the assembly sheet..40

5
SI NO
1-1
INSTALLERUSER
MAINTENANCE TECHNICIAN
1BOILER INSTALLATION
1.1 INSTALLATION
RECOMMENDATIONS.
The Victrix Superior 32 X 2 ErP boiler has
been designed for wall mounted installation
only, to heat and produce domestic hot water
for domestic use and similar purposes (when
the boiler is connected to an external storage
tank unit).
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 compo-
nents) as well as their possible 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:
- B23 or B53 type of 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.
N.B.: appliance classification is provided in
the images of the various installation solutions
shown on the following pages.
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.
Attention: the manufacturer declines all liability
for damages caused by boilers removed from
other systems or for any non-conformities of
such equipment.
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 sufficient
space for normal servicing; it is therefore
recommended to leave at least 45 cm between the
upper part of the boiler and the ceiling and a gap
of 3 cm between the boiler casing and the vertical
sides of the cabinet. Leave adequate space under
the boiler for possible hydraulic connections.
Keep all flammable 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 a malfunction, fault or incorrect
operation, turn the appliance o and contact
an authorised company (e.g. the Authorised
Technical Assistance centre, which has
specifically trained staff 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...).
is type of installation is only possible when
permitted by the laws in force in the appliance’s
country of destination.
- Installation of gas appliances, ue exhaust
pipes and combustion air intake pipes is
forbidden in places with a re risk (for ex-
ample: garages, closed parking stalls), and
in potentially dangerous places.
- Installation is prohibited on the vertical
projection of the cooking surface.
- Installation is forbidden in places/rooms that
constitute public areas of apartment build-
ings, internal stairways or other escape routes
(e.g. oor landings, entrance halls, etc.).
- Installation is also forbidden in places/rooms
that constitute public areas of apartment
buildings such as cellars, entrance halls, at-
tics, los, etc., unless otherwise provided for
by local regulations in force.
- 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.
YES NO
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.

6
1-2
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.2 MAIN DIMENSIONS.
Key:
V - Electrical connection
G - Gas supply
RU - Storage tank unit return
MU - Storage tank unit ow
RR - System Filling
SC - Condensate drain
(minimum internal diameter Ø13 mm)
R - System return
M - System ow
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -3°C. e boiler comes
standard with an antifreeze function that ac-
tivates the pump and burner when the water
temperature inside the boiler drops below 4°C.
In these conditions the boiler is protected against
freezing to an ambient temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature drops
below -5°C, the appliance can freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- protect the central heating circuit from freez-
ing by inserting a quality antifreeze liquid into
this circuit, which is specically adequate for
central heating systems and which is guaran-
teed by the manufacturer 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 strictly fol-
lowed regarding the necessary percentage 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 (EN 1717:2002 or local regulations in
force).
Warning: the excessive use of glycol could
jeopardise the proper functioning of the ap-
pliance.
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 sup-
plier’s instructions.
- Protect the system ll-up circuit and the con-
densate drain trap from freezing by using an
accessory that is supplied on request (antifreeze
kit) including an electric resistance, the relevant
wiring and a control thermostat (carefully read
the installation instructions in the accessory kit
pack).
In these conditions the boiler is protected against
freezing to temperature of -15°C.
Boiler antifreeze protection (both -3°C and -15°C)
is thus ensured only if:
- the boiler is correctly connected to the gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in stand-by ( ).
- the boiler is not in anomaly conditions (parag.
2.6);
- the essential components of the boiler and/or
antifreeze kit are not faulty.
e warranty does not cover damage due to inter-
ruption 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 drops below 0°C, the heating
attachment pipes must be insulated. e water in
the storage tank unit (if present) is not protected
against freezing when the boiler is switched o.
Height
(mm)
Width
(mm)
Depth
(mm)
835 440 350
CONNECTIONS
GAS WATER SYSTEM
G RR R M
1/2” 1/2” 3/4” 3/4”

7
CAVO ALIMENTAZIONE
1-3
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.4 GAS CONNECTION.
Our boilers are designed to operate with methane
gas (G20) and LPG. Supply pipes must be the
same as or larger than the 1/2”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 technical standards in force.
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.
1.5 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.
Attention: the manufacturer declines all liability
in the event of damage caused by the installation
of an automatic lling system.
In order to meet the system requirements
established by the technical regulation in force
in relation to the pollution of drinking water,
we recommend installing the IMMERGAS
anti-backow 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.
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; aer rst ignition,
check that the drain trap is lled with condensate
(parag. 1.21). Also, comply with national and
local regulations on discharging waste waters.
In the event condensate is not discharged into
the wastewater drainage system, a condensate
neutraliser must be installed to ensure compli-
ance with the parameters established by the
legislation in force.
1.6 ELECTRICAL CONNECTION.
e “Victrix Superior 32 X 2 ErP” boiler has an
IPX5D 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: the manufacturer 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 qualified technician (e.g. the After-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 adapt-
ers, multiple sockets or extension leads.
Installation with system operating at direct
low temperature. e boiler can directly feed a
low temperature system by acting on parameter
“P66” (Par. 3.8) and setting the ow temperature
adjustment range “P66/A” and “P66/B”. In
this case it is good practice to insert a safety
device in series with the boiler, consisting of a
thermostat having a limit temperature of 60°C.
e thermostat must be positioned on the system
delivery pipe at a distance of at least 2 metres
from the boiler.
POWER SUPPLY CABLE

8
45
31
58
1-4 1-5
1-6 1-7
INSTALLERUSER
MAINTENANCE TECHNICIAN
Comando Amico Remoto remote controlV2 (CARV2)
On/O digital chrono-thermostat.
Super Comando Amico Remoto
remote control (Super CAR)
TM-MAX/MIN = Selected ow temp. range.
TE = External temperature.
EXTERNAL PROBE
Correction law of the ow temperature
depending on the external temperature
and user adjustments of the central heating
temperature.
1.7 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.
All Immergas chrono-thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the accessory
kit.
• Immergas On/O digital chrono-thermostat
(Fig. 1-4). 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
temperature).
- 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.
• ere are two types of remote controls available:
Comando Amico Remoto remote control
V2 (CARV2) (Fig. 1-4) and Super Comando
Amico Remoto remote control (Super CAR)
(Fig. 1-5) both with room chrono-thermostat
functioning. In addition to the functions
described in the previous point, the chrono-
thermostat panels enable the user to control all
the important information regarding operation
of the appliance and the central 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.
e panel is provided with self-diagnosis to
display any boiler functioning 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. e CARV2 is supplied directly
by the boiler by the same 2 wires used for the
transmission of data between the boiler and the
device.
Important: if the system is subdivided into
zones using the relevant kit, the CAR V2 and
the Super CAR must be used with its climate
thermostat function disabled, i.e. it must be set
to On/O mode.
CARV2, Super CAR or On/Off chrono-
thermostat electrical connection (Optional).
e operations described below must be performed
after having removed the voltage from the
appliance. e eventual 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
supply, otherwise the P.C.B. would be damaged.
Any CARV2 or Super CAR must be connected
by means of terminals IN+and IN- to terminals
42 and 43 on the circuit board, eliminating
jumper X40 and respecting polarity (Fig. 3-2).
Connection with the wrong polarity prevents
functioning, but without damaging the Remote
control. e boiler can only be connected to one
remote control.
Important: if the Comando Remoto 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 elimination of this risk before
making the boiler electrical connections.
1.8 EXTERNAL TEMPERATURE 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. 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.
The external probe always operates when
connected, regardless of the presence or type of
room chrono-thermostat used and can work in
combination with Immergas timer thermostats.
e correlation between system ow temperature
and external temperature is determined by the
parameters set in menu “M5” under “P66”
according to the curves represented in the
diagram (Fig. 1-7). e electric connection of
the external probe must be made on clamps 38
and 39 on the boiler P.C.B. (Fig. 3-2).

9
(A)
(B)
1-8
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.9 IMMERGAS 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” inspectionable air intake system and
fumes extraction system made of plastic,
with the exception of the C6 conguration, as
required by the regulations in force.
e plastic pipes cannot be installed outdoors,
for tracts longer than 40 cm, without suitable
protection from UVraysand other atmospheric
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 clip with pin must
be installed every 3 metres.
1.10 TABLES 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
INSTALLERUSER
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 1.0 Exhaust 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 1.0 m 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 0.8 m 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 3.7 m 5.8
Exhaust m 10.1

11
1-111-10
1-9
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.11 OUTDOOR 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...).
is type of installation is only possible when
the law in force in the destination country of the
appliance allows it.
•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 fumes exhaust must be connected to its own
single chimney (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.
• Kit assembly (Fig. 1-10): 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.
•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.
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

12
5
4
3
1
2
1
2
3
456
C13
C13
C13
1-12 1-13
1-14 1-15
C13
INSTALLERUSER
MAINTENANCE TECHNICIAN
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)
e adapter Kit includes:
N° 1 - Gasket (1)
N° 1 - Adapter
Ø80/125 (2)
1.12 HORIZONTAL CONCENTRIC KIT
INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
The position of the terminal (in terms of
distances from openings, overlooking buildings,
floor, etc.) must be in compliance with the
regulations in force.
is terminal is connected directly to the outside
of the building for air intake and ue exhaust. e
horizontal kit can be installed with the rear, right
side, le side or front outlet. For installation with
frontal outlet, one must use the xing plate and
a concentric bend coupling in order to ensure
sucient space to carry out the tests required
by law upon commissioning.
• External grid. Both the Ø60/100 and Ø80/125
intake/exhaust terminal, if properly installed, is
pleasant to look at on the outside of the build-
ing. Make sure that the external silicone wall
sealing plate is properly inserted in the wall.
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.
Horizontal intake - exhaust kit Ø60/100. Kit
assembly (Fig. 1-12): install the bend with ange
(2) on the central hole of the boiler, positioning
the gasket (1) 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. 1-13). 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.
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
Horizontal intake - exhaust kit Ø80/125. Kit
assembly (Fig. 1-14): 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) with the circular
projections downwards in contact with the boiler
ange 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. 1-15). e kit with this conguration
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.

13
7
46
5
1
2
3
1
2
3
4
5
6
7
C33
C33
C33
C33 1-17
1-191-18
1-16
INSTALLERUSER
MAINTENANCE TECHNICIAN
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
1.13 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. 1-16): install the concentric
flange (2) on the central hole of the boiler,
positioning the gasket (1) 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.
N.B.: when the boiler is installed in areas where
very rigid temperatures can be reached, a special
antifreeze kit is available that can be installed as
an alternative to the standard kit.
• Extensions for vertical kit Ø60/100 (Fig. 1-17).
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. 1-18): 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) 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. 1-19).
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.

14
1
4
79
556
7
8
3
2
S
A
C83
C43 C53*- C83
1-22
1-20 1-21
INSTALLERUSER
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° Ø80 (5)
N° 1 - Intake terminal Ø80 (6)
N° 2 - Internal wall sealing plates (7)
N° 1 - External wall sealing plate (8)
N° 1 - Exhaust pipe Ø80 (9)
1.14 SEPARATOR KIT INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Separator kit Ø80/80. is kit allows air to come
in from outside the building and the exhaust to
exit from the chimney, ue or intubated duct
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. 1-20): install the ange (4)
on the central hole of the boiler, positioning
the gasket (1). Position it with the circular
projections downwards in contact with the
boiler ange and tighten using the hex screws
with at 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. 1-21). 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. Please note the type of
installation C43 must be done with a natural
draught ue.
N.B.: to favour the removal of possible condensate
forming in the exhaust pipe, tilt the pipes towards
the boilers with a min. slope of 1.5%. (Fig. 1-22).
Minimum slope 1.5 %
*to complete C53 conguration also provide for a roof discharge terminal.
e conguration on walls opposite the building is not allowed.

15
12
3
3
3
4567
689
A
10
11
12
12
A
B
A
C
1-24
1-23
INSTALLERUSER
MAINTENANCE TECHNICIAN
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) ScrewsTEM4 x16athead screwdriver
- 1 (kit 80/125) Lubricant talc bag
Supplied separately:
Installation drawings key:
Unmistakeable component identification
present in the kit
Identication component not supplied with
this kit
1
A
Ref. Qty Description
A 1 Ducting kit door
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
1.15 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. 1-24).
- (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. 1-25).
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. 1-25).
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. 1-23).
- 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. 1-25) 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. 1-25) 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.

16
C53
1-261-25
X
C93
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.16 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. 1-26). 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 maximum length specied by the manu-
facturer must be respected; in this regard:
- the 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. is
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.
1.17 CONFIGURATION TYPE B
OPEN CHAMBER AND FORCED
DRAUGHT FOR INSIDE.
e appliance can be installed inside buildings in
B23 or B53 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 and B53 conguration, the boilers
must not be installed in bedrooms, bathrooms
or in bedsitters, unless otherwise provided for
by local regulations in force. ey must neither
be installed in rooms containing solid fuel heat
generators nor in rooms communicating with
said rooms.
- The installation of appliances in B23 and
B53configuration is only recommended
outdoors (in a partially protected place) or
in places that are not lived in and which are
permanently ventilated.
e suitable kit referred to in paragraph 1.11
must be used for installation.
1.18 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
conguration, can be connected to a special LAS
type multiple ue. For B congurations, exhaust
is only allowed into individual ue or directly
into the external atmosphere via a relevant
terminal, unless otherwise provided for by local
regulations in force. 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
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.19 FLUES, 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.
1.20 SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling via the lling valve (Fig. 1-28 and
2-8). 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.
1.21 FILLING 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.
1.22 GAS SYSTEM STARTUP.
To start up the system, refer to the current
regulations.
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 the specications.
1.23 BOILER START UP IGNITION.
To commission the boiler (the operations listed
below must only be performed by a qualied rm
and without any unauthorised persons):
- check that the internal system is properly sealed
according to the specications set forth by
technical regulations in force;
- ensure that the type of gas used corresponds to
boiler settings;
- check that there are external factors that may
cause the formation of fuel pockets;
- 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.

18
A
B
1-27
INSTALLERUSER
MAINTENANCE TECHNICIAN
Head available to the system.
Key:
A+B = Head available with by-pass excluded (closed) in Auto mode
B = Head available with by-pass inserted (open) in Auto mode
Head (m H2O)
Flow rate (l/h)
Head (kPa)
A
B
1.24 CIRCULATION PUMP.
e boilers are supplied with a built-in circulation
pump with variable speed. When the boiler is in
heating phase the speed of the pump is dened
according to the “P57” in the configuration
menu (Parag. 3.8), in sanitary phase the pump
functions at maximum speed.
In heating phase the Auto and Fixed mode
operations are available.
• Auto: automatic pump speed. In this mode it
is possible to choose between the options at
“Proportional prevalence” and “∆T constant”.
- Proportional prevalence (∆T =0): the pump
speed varies based on the power supplied by
the burner, greater the power, greater the
speed. Moreover, inside the parameter it is
possible to regulate the operation range of
the pump by setting the maximum speed
(adjustable from 100 % ÷55 %) and the
minimum speed (adjustable from 55 % to
the max set speed).
- ∆T Constant (∆T =5 ÷25 K): at variable
pump speed to keep the ∆T constant between
system ow and return depending on the set
value of K. Moreover, inside the parameter
it is possible to regulate the operation range
of the pump by setting the maximum speed
(adjustable from 100 % ÷55 %) and the
minimum speed (adjustable from 54 % to
the max set speed).
• Fixed (100 %÷55 %): in this mode the pump
operates at a constant speed, the range of work
is dened between the minimum (55 %) and
the maximum (100 %).
N.B.: for the boiler to work properly, it is not
allowed to drop below the minimum value
indicated above.
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. 25 Fig. 1-28). e
boiler is supplied with by-pass closed by 1.5 turns
with respect to all 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.
MAX.
MIN.

19
1-28
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.26 BOILER COMPONENTS.
Key:
1 - Gas valve
2 - Condensate drain trap
3 - Safety thermostat
4 - Gas nozzle
5 - Delivery probe
6 - Venturi
7 - Detection electrode
8 - System expansion vessel
9 - Air intake pipe
10 - Condensation module
11 - Manual air vent valve
12 - Negative signal pressure point
25 - Adjustable by-pass
26 - 3 bar safety valve
27 - 3-way valve (motorised) (Optional)
28 - System draining valve
29 - System lling valve
G - Gas supply
RU - Storage tank unit return (Optional)
MU - Storage tank unit ow (Optional)
RR - System Filling
R - System return
M - System ow
1.25 KITS AVAILABLE ON REQUEST.
• System cut-off valve kits with or without
inspectionable 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 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.
• External storage tank unit coupling kit (on
request). If the production of DHW is required
as well as room central heating, on request Im-
mergas supplies a kit made up from an external
storage tank unit and everything necessary for
adaptation of the boiler.
e above-mentioned kits are supplied complete
with instructions for assembly and use.
13 - Positive signal pressure point
14 - Sample points (air A) - (ue gas F)
15 - Flue probe
16 - Heat exchanger safety thermal fuse
17 - Burner
18 - Ignition electrodes
19 - Fan
21 - Return probe
20 - Igniter
22 - System pressure switch
23 - Vent valve
24 - Boiler pump

20
2-1
INSTALLERUSER
MAINTENANCE TECHNICIAN
2INSTRUCTIONS FOR USE AND MAINTENANCE.
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”, in
compliance with national, regional, or local
standards in force.
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
ue extraction and relative accessories, switch o
the appliance and on completion of operations
ensure that an authorised company checks the
eciency of the ducting or the 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.
• Attention: 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;
- if the cable is damaged, switch off the
appliance and solely contact an authorised
company to replace it;
- 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 blamed on the boiler.
At the end of its service life the appliance must
not be disposed of like normal household waste
nor abandoned in the environment, but must
be removed by a professionally authorised
company. Contact the manufacturer for disposal
instructions.
Key:
- Stand-by - On Button
A- Summer ()and winter ( ) functioning mode selection button
B- (*) Domestic hot water priority button ( )
C- (RESET) / menu exit (ESC) reset button
D- Menu entry button (MENU)/ data conrmation (OK)
1 - (*) Domestic hot water temperature selector
2 - (*) Domestic hot water temperature set
3 - Heating temperature selector
4 - Central heating temperature set
5 - Anomaly present
6 - Display of boiler functioning status
8 - Flame presence symbol and relative output scale
9 and 7 - Primary heat exchanger output water temperature
10 - Boiler in stand-by
11 - Boiler connected to remote control (Optional)
12 - Operation in summer mode
13 - Anti-freeze function in progress.
14 - Operation in winter mode
15 - (*) Domestic hot water priority functioning active
16 - Connection to external tools for technician
17 - Display of menu items
18 - Functioning with external temperature probe active
19 - Display of data conrmation or menu access
20 and 7 - External temperature display with external probe
connected (optional)
21 - Display of reset or exit menu request
22 - Chimney sweep function in progress
23 - Boiler manometer
24 - Multifunction display
(*) N.B.: (when the boiler is connected to an external storage tank)
2.3 CONTROL PANEL.