Immergas VICTRIX ZEUS SUPERIOR 26 2 ERP Operating instructions

VICTRIX ZEUS
SUPERIOR
26 2 - 32 2 ERP
Instruction and
recommendation booklet
IE
*1.037935ENG*

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 prior notice.
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.
For assistance and scheduled maintenance contact Authorised 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 suitable transport packaging.
e material must be stored in dry environments protected against bad weather.
e instruction book is an integral and essential part of the product and must be consigned to the new user also in the case of transfer or succession of ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instructions manual provides technical information for installing Immergas boilers. As for the other issues related to boiler installation (e.g. safety in the work
site, environment protection, injury prevention), it is necessary to comply with the provisions specied in the regulations in force and principles of good practice.
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 the Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to people, animals
and objects. Read the instructions provided with the product carefully to ensure a proper installation.
Maintenance must be carried out by skilled technical sta. e Authorised Aer-sales Service represents a guarantee of qualications 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.
Mauro Guareschi
Research & Development Director
Signature:
CE DECLARATION OF CONFORMITY
(according to ISO/IEC 17050-1)
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE) whose design, manufacturing, and aer sale assistance
processes comply with the requirements of standard UNI EN ISO 9001:2008,
DECLARES that:
e boiler model VICTRIX ZEUS SUPERIOR 26 2 and 32 2 ErP complies with European Directives and Delegated European Regulations listed below:
“Eco-design” Directive 2009/125/EC, “Energy labelling” Directive 2010/30/EC, EU Regulation 811/2013, EU Regulation 813/2013, “Gas Appliance” Direc-
tive 2009/142/EC, “Electromagnetic Compatibility” Directive 2004/108/EC, “Performance” Directive 92/42/EC and “Low Voltage” Directive 2006/95/EC.

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
1.10Tables of resistance factors
and equivalent lengths. ..............................9
1.11Outdoor installation in a
partially protected area. ...........................11
1.12Concentric horizontal kit installation....12
1.13Concentric vertical kit installation.........13
1.14Separator kit installation..........................14
1.15Adaptor C9 kit installation. ....................15
1.16Ducting of ues or technical slots. .........16
1.17Conguration type B, open
chamber and fan assisted for indoors. ...16
1.18Flue gas exhaust to ue/chimney............16
1.19Flues, chimneys, chimney
pots and terminals....................................17
1.20System lling. ............................................17
1.21Condensate trap lling.............................17
1.22Gas system start-up. .................................17
1.23Boiler start up (ignition)..........................17
1.24Circulation pump......................................18
1.25Kits available on request. .........................19
1.26Boiler components....................................19
2 Use and maintenance instructions .........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 Parameters and information menu. .......25
2.8 Boiler shutdown........................................26
2.9 Restoring central heating
system pressure. ........................................26
2.10 System drainage. ......................................26
2.11Storage tank draining...............................26
2.12Anti-freeze protection..............................26
2.13Case cleaning.............................................26
2.14Decommissioning.....................................26
3 Boiler start-up (initial check)..................27
3.1 Plumbing diagram....................................27
3.2 Wiring diagram.........................................28
3.3 Troubleshooting........................................28
3.4 Converting the boiler to
other types of gas. .....................................28
3.5 Calibration of number of fan revs. .........29
3.6 Adjustment of the air-gas ratio. ..............29
3.7 Checks following conversion
to another type of gas...............................29
3.8 Programming the P.C.B. ..........................30
3.9 "Chimney sweep function"......................32
3.10Pump anti-block function. ......................32
3.11three-way anti-block function. ...............32
3.12Radiators antifreeze function..................32
3.13Periodical P.C.B. self-check. ....................32
3.14Automatic vent function..........................32
3.15Solar panels coupling function. ..............32
3.16appliance check and maintenance..........33
3.17Casing removal. ........................................34
3.18Variable heat output. ................................35
3.19Combustion parameters. .........................36
3.20Technical data. ..........................................37
3.21Key for data nameplate. ...........................38
3.22Technical parameters for mixed
boilers (in compliance with
Regulation 813/2013)...............................39
3.23Product data sheet (in compliance
with Regulation 811/2013)......................40
3.24Parameters for lling
in the assembly sheet................................41

5
1-1
SI NO
INSTALLERUSER
MAINTENANCE TECHNICIAN
1BOILER INSTALLATION
1.1 INSTALLATION
RECOMMENDATIONS.
e Victrix Zeus Superior ErP boiler has been
designed for wall mounted installation only; for
heating and production of domestic hot water for
domestic use and similar purposes.
e place of installation of the appliance and
relative Immergas accessories must have suitable
features (technical and structural) such to allow
(always in safety, efficiency and comfortable
conditions):
- installation (according to the provisions of the
technical legislation and technical regulations);
- maintenance operations (including scheduled,
periodic, routine and special maintenance);
- removal (to outdoors in the place for loading
and transporting the appliances and compo-
nents) as well as their eventual replacement
with appliances and/or equivalent components.
e wall surface must be smooth, without any
protrusions or recesses enabling access to the
rear part. ey are not designed to be installed
on plinths or oors (Fig. 1-1).
By varying the type of installation the classica-
tion of the boiler also varies, precisely:
- Type B23 or B53 boiler if installed using the
relevant terminal for air intake directly from
the room in which the boiler has been installed.
- Type C boiler if installed using concentric
pipes or other types of pipes envisioned for
sealed chamber boilers for air intake and expul-
sion of ue gas.
Only professionally enabled companies are
authorised to install Immergas gas appliances.
Installation must be carried out according to
regulation standards, current legislation and in
compliance with local technical regulations and
the required technical procedures.
Before installing the appliance, ensure that it is
delivered in perfect condition; if in doubt, contact
the supplier immediately. Packing materials (sta-
ples, nails, plastic bags, polystyrene foam, etc.)
constitute a hazard and must be kept out of the
reach of children. If the appliance is installed in-
side 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 fume removal connections. At least 60 cm
must be le below the boiler in order to assure
replacement of the magnesium anode. 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 an obstructed conveying
system (the safety valve must 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.
For the aforementioned reasons, we recommend
not placing furnishings, furniture, etc. under
the boiler.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o and contact an
authorised company (e.g. the Authorised Tech-
nical 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 regulations:
- this boiler can be installed outdoors in a
partially protected area. A partially protected
area is one in which the appliance is not
exposed to the direct action of the weather
(rain, snow, hail, etc..).
- Installation in places with a re risk is pro-
hibited (for example: garages, closed parking
stalls), gas appliances and relative ue ducts,
ue exhaust pipes and combustion air intake
pipes.
- Installation is prohibited on the vertical
projection of cooking hobs.
- Installation is also forbidden in places/rooms
that constitute common parts of apartment
buildings such as stairs, cellars, entrance
halls, attics, los, escape routes, etc. unless
otherwise provided by local regulations.
Attention: 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 (ac-
cording 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.
"Anti-legionella" heat treatment of the Immergas
storage tank (activated by the specic function
present on the predisposed thermoregulatory
systems): during this stage, the temperature of
the water inside the storage tank exceeds 60°C
with a relative risk of burns. Keep this domestic
water treatment under control (and inform
the users) to prevent unforeseeable damage
to people, animals, things. If required install a
thermostatic valve on the domestic hot water
outlet to prevent scalding.
YES NO

6
1-2
INSTALLERUSER
MAINTENANCE TECHNICIAN
Key:
V - Electrical connection
G - Gas supply
SC - Condensate drain (minimum internal diam-
eter 13 mm Ø)
R - System return
M - System ow
RC - Domestic hot water recirculation (optional)
AC - Domestic hot water outlet
AF - Domestic cold water inlet
Height
(mm) Width (mm) Depth (mm)
900 600 466
CONNECTIONS
GAS DOMESTIC
HOT WATER SYSTEM
GAC AF R M
1/2” 1/2” 1/2” 3/4” 3/4”
1.2 MAIN DIMENSIONS.
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -5°C. e boiler comes
standard with an anti-freeze function that ac-
tivates the pump and burner when the system
water temperature in the boiler falls below 4°C.
In these conditions the boiler is protected against
freezing to an ambient temperature of -5°C.
Minimum temperature -15°C. In the event the
boiler is installed in a place where the tempera-
ture falls below -5°C, the appliance can freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- protect the central heating circuit from freezing
by inserting a good-quality antifreeze liquid
into this circuit, which is specially suited for
central heating systems and which is manu-
facturer guaranteed not to cause damage to
the heat exchanger or other components of
the boiler. e antifreeze liquid must not be
harmful to one's health. e instructions of the
manufacturer of this liquid must be followed
scrupulously regarding the percentage neces-
sary 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).
e materials used for the central heating circuit
of Immergas boilers withstand ethylene and
propylene glycol based antifreeze liquids (if the
mixtures are prepared perfectly).
For life and possible disposal, follow the sup-
plier's instructions.
- Protect the domestic hot water circuit against
freezing by using an accessory that is supplied
on request (anti-freeze kit) comprising two
electric heating elements, the relevant cables
and a control thermostat (carefully read the
installation instructions contained in the ac-
cessory kit pack).
In these conditions the boiler is protected against
freezing to temperature of -15°C.
Boiler antifreeze protection (both -5°C and -15°C)
is thus ensured only if:
- the boiler is correctly connected to gas and elec-
tricity 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.
NOTE: if the boiler is installed in places where
the temperature falls below 0°C the domestic
hot water and central heating attachment pipes
must be insulated.

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
name plate). If different, 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 accord-
ing to the type used in the boiler, which must
comply with the technical standards in force, 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 rate to the
burner even in conditions of maximum genera-
tor output and to guarantee appliance eciency
(technical specications). e coupling system
must conform to technical standards in force.
Fuel gas quality. e appliance was designed
to operate with combustible gas free of impuri-
ties; otherwise it is advisable to t special lters
upstream of the appliance to restore the purity
of the fuel.
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 condensa-
tion module warranty, before making the boiler
connections, carefully wash the heating system
(pipes, radiators, etc.) with special pickling or
descaling products to remove any deposits that
could compromise correct boiler operation.
A chemical treatment of the thermal system wa-
ter is required, in compliance with the technical
standards in force, in order to protect the system
and the appliance from deposits (e.g., lime scale),
slurry or other hazardous deposits.
Water connections must be made in a rational
way using the couplings on the boiler template.
e boiler safety valves outlet must be connected
to a draining funnel. Otherwise, the manufactur-
er declines any responsibility in case of ooding
if the drain valve cuts in.
Attention: Immergas declines all liability in the
event of damage caused by the inclusion of auto-
matic lling that is not its own brand.
In order to meet the system requirements es-
tablished 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.
Attention: to preserve the duration and the ef-
ciency features of the appliance, in the presence
of water whose features can lead to the deposit of
scale, installation of the “polyphosphate dispenser”
kit is recommended.
Condensate drain. To drain the condensate
produced by the appliance, it is necessary to
connect to the drainage system by means of acid
condensate resistant pipes, with an internal Ø of
at least 13 mm. e system connecting the appli-
ance to the drainage system must be carried out
in such a way as to prevent freezing of the liquid
contained in it. Before appliance ignition, ensure
that the condensate can be correctly removed.
Aer rst ignition, check that the drain trap is
lled with condensate (para. 1.21). Also, comply
with national and local regulations on discharg-
ing waste waters.
1.6 ELECTRICAL CONNECTION.
e “Victrix Zeus Superior 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: Immergas S.p.A. declines any respon-
sibility 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 cor-
responds to maximum absorbed power specica-
tions 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 sup-
ply respecting L-N polarity and earth connection;
, this network must also have a multi-pole cir-
cuit breaker with class III over-voltage category.
When replacing the power supply cable, contact
a qualied rm (e.g. the Authorised 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 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 delivery tempera-
ture adjustment range “P66/A” and “P66/B”. In
this situation it is good practice to insert a safety
device in series with the power supply and boiler.
is device is made up from a thermostat with
a temperature limit of 60°C. e thermostat
must be positioned on the system delivery pipe
at a distance of at least 2 metres from the boiler.
SUPPLY
VOLTAGE CABLE

8
1-4 1-5
1-6 1-7
45
31
58
INSTALLERUSER
MAINTENANCE TECHNICIAN
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 acces-
sory kit.
• On/O digital Immergas chrono-thermostat
(Fig. 1-4). e chrono-thermostat allows:
- set two room temperature value: one for
daytime (comfort temperature) and one for
night-time (reduced temperature);
- set a weekly program with four daily switch on
and switch o times;
- select the required operating mode from the
various possible alternatives:
- manual mode (with adjustable temperature).
- automatic mode (with set program).
- forced automatic mode (momentarily
changing 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 availa-
ble: Comando Amico Remoto remote controlV2
(CARV2) (Fig. 1-5) and Super Comando Amico
Remoto remote control (Super CAR) (Fig. 1-5)
both with a climate chrono-thermostat opera-
tion. In addition to the functions described in
the previous point, the chrono-thermostat
panels enable the user to control all the im-
portant 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 fed directly by
the boiler by means of the same 2 wires used
for the transmission of data between the boiler
and device.
Important: if the system is subdivided into areas
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.
CAR V2, Super CAR or On/O chrono-ther-
mostat electrical connection (Optional). e
operations described below must be performed
aer having removed the voltage from the appli-
ance. Any On/O room chrono-thermostat must
be connected to clamps 40 and 41 eliminating
jumper X40 (Fig. 3-2). Make sure that the On/
O thermostat contact is of the “clean” type, i.e.
independent of the mains voltage, otherwise the
P.C.B. would be damaged. Any CAR V2 or Super
CAR must be connected by means of terminals
IN+ and IN- to terminals 42 and 43 on the
P.C.B. (in the boiler), eliminating jumper X40
and respecting polarity (Fig. 3-2). 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 Comando Amico Remoto
remote controlV2 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 designed for the application of the
external temperature probe (Fig. 1-6), which is
available as an optional kit. Refer to the relative
instruction sheet for positioning of the external
probe. e probe can be connected directly to
the boiler electrical system and allows the max.
system ow temperature to be automatically de-
creased 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 con-
nected, 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 item “P66”
according to the curves represented in the dia-
gram (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).
Comando Amico Remoto remote controlV2 (CARV2)
On/O digital chrono-thermostat.
Super Comando Amico Remoto remote control
TM-MAX/MIN = Selected ow
temp. range.
TE = External temperature.
EXTERNAL PROBE
Correction law of the ow temperature depending on the external tem-
perature and user adjustment of the central heating temperature.

9
(A)
(B)
1-8
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.10 TABLES OF RESISTANCE FACTORS
AND EQUIVALENT LENGTHS.
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent length
in m of concentric
pipe Ø 80/125
Concentric pipe Ø 80/125 m 1 2.1 1
Concentric bend 90° Ø 80/125 3.0 1.4
Concentric bend 45° Ø 80/125 2.1 1
Terminal complete with concentric
horizontal intake-exhaust Ø 80/125 2.8 1.3
Terminal complete with concentric
vertical intake-exhaust Ø 80/125 3.6 1.7
Concentric bend 90° Ø 80/125 with
inspection 3.4 1.6
Stub pipe with inspection Ø 80/125 3.4 1.6
1.9 IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the boilers regarding the installation of
air intake terminals and ue exhaust, which are
fundamental for boiler operation.
Attention: the boiler must be installed ex-
clusively with an original Immergas “Green
Range” inspectionable air intake device and
fumes extraction system made of plastic, as
required by the regulations in force.
e plastic pipes cannot be installed outdoors,
for tracts longer than 40 cm, without suitable
protection from UV rays and other atmos-
pheric agents.
is system can be identied by an identica-
tion mark and special distinctive marking
bearing the note: “only for condensing boilers”.
• Resistance factors and equivalent lengths. Each
ue component has a Resistance Factor based
on experimental tests and specied 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 dimen-
sionless size. It is however, conditioned by the
temperature of the uids that pass through the
pipe and therefore, varies according to applica-
tions for air intake or ue exhaust. Each single
component has a resistance corresponding to
a certain length in metres of pipe of the same
diameter; the so-called equivalent length,
can be obtained from the ratio between the
relative Resistance Factors. All boilers have an
experimentally obtainable maximum Resistance
Factor equal to 100. e maximum Resistance
Factor allowed corresponds to the resistance
encountered with the maximum allowed pipe
length for each type of Terminal Kit. This
information allows calculations to be made to
verify the possibility of setting up various ue
congurations.
• Positioning the gaskets (black) for “green
range” ue systems. Position the gasket cor-
rectly (for bends and extensions) (Fig. 1-8):
- gasket (A) with notches, to use for bends;
- gasket (B) without notches, to use for exten-
sions;
N.B.: if component lubrication (already car-
ried out by the manufacturer) is not sucient,
remove the residual lubricant using a dry cloth,
then to ease tting coat the parts with talc, sup-
plied in the kit.
• Coupling extension pipes and concentric
elbows. To install push-tting extensions with
other elements of the ue, proceed as follows:
Install the concentric pipe or elbow with the
male side (smooth) on the female side (with lip
seal) to the end stop on the previously installed
element in order to ensure sealing eciency of
the coupling.
Attention: if the exhaust terminal and/or
concentric extension pipe needs shortening,
consider that the internal duct must always
protrude by 5 mm with respect to the external
duct.
• N.B.: for safety purposes, do not obstruct the
boiler intake/exhaust terminal, even temporar-
ily.
• N.B.: when installing horizontal pipes, a mini-
mum inclination of 3% must be maintained and
a section clip with pin must be installed every
3 metres.

10
INSTALLERUSER
MAINTENANCE TECHNICIAN
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent
length in m
of concentric pipe
Ø 60/100
Equivalent
length in metres
of pipe Ø 80
Equivalent length
in metres of pipe
Ø 60
Equivalent length
in m of concentric
pipe Ø 80/125
Concentric pipe Ø 60/100
m 1
Intake and
Exhaust 6.4 m 1 Intake m 7.3 Exhaust m 1.9 m 3.0
Exhaust m 5.3
90° bend concentric
Ø 60/100
Intake and
Exhaust 8.2 m 1.3
Intake m 9.4
Exhaust m 2.5 m 3.9
Exhaust m 6.8
45° bend concentric
Ø 60/100
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
horizontal concentric
intake-exhaust
Ø 60/100
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
Ø 60/100
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 Ø 60/100
Intake and
Exhaust 16.3 m 2.5
Intake m 18.7
Exhaust m 4.9 m 7.7
Exhaust m 13.6
Concentric intake-exhaust
terminal
Ø 60/100 vertical
Intake and
Exhaust 9 m 1.4
Intake m 10.3
Exhaust m 2.7 m 4.3
Exhaust m 7.5
Pipe Ø 80 m 1 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 terminal
intake Ø 80 m 1 Intake 3 m 0.5 Intake m 3.4 Exhaust m 0.9 m 1.4
Intake terminal Ø 80
Exhaust terminal Ø 80
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° Ø 80 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° Ø 80 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
90° 60 Ø Bend
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
vertical exhaust 60 Ø
for ducting
Exhaust 12.2 m 1.9
Intake m 14
Exhaust m 3.7 m 5.8
Exhaust m 10.1

11
1-9
1-11 1-12
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.11 OUTDOOR INSTALLATION IN A
PARTIALLY PROTECTED AREA.
N.B.: a partially protected location 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.
• Conguration type B, open chamber and
forced draught.
Using the special coverage kit one can achieve
direct air intake (Fig. 1-9) and fumes exhaust in
a single ue or directly outside. In this congura-
tion it is possible to install the boiler in a partially
protected place. In this conguration the boiler
is classied as type B.
With this conguration:
- air intake takes place directly from the envi-
ronment in which the appliance is installed
(outside);
- the ue gas exhaust must be connected to its
own single ue (B23) or ducted directly outside
via a vertical terminal for direct exhaust (B53)
or via an Immergas ducting system (B53).
The technical regulations in force must be
respected.
• Coverage kit assembly (Fig. 1-11). Remove
the cap and gasket from the intake hole. Install
the Ø 80 outlet ange on the central hole of the
boiler, taking care to insert the gasket supplied
with the kit and tighten by means of the screws
provided. Install the upper cover, xing it using
the 4 screws present in the kit, positioning the
relevant gaskets. Engage the 90° Ø 80 bend
with the male end (smooth) in the female end
(with lip seal) of the Ø 80 ange unit until it
stops. Introduce the gasket, making it run along
the bend. Fix it using the sheet steel plate and
tighten by means of the straps present in the
kit, making sure to block the 4 gasket aps. Fit
the male end (smooth) of the exhaust terminal
into the the female end of the bend 90° Ø 80,
making sure that the relevant wall sealing plate
is already tted; this will ensure hold and join-
ing of the elements making up the kit.
Max. length of exhaust duct. e ue pipe (both
vertical or horizontal) can be extended to a max.
length of 30 linear metres.
• Coupling of extension pipes. To install any
push-t extensions with other ue elements,
it is necessary to act as follows: install the pipe
or elbow with the male side (smooth) into the
female section (with lip seal) to the end stop
on the previously installed element. is will
ensure correct sealing and joining of the ele-
ments.
• 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, Ø 80/125 and separator Ø 80/80
concentric intake/ exhaust kits. Refer to the
paragraph relative to indoor installation. In
this conguration the upper cover kit guaran-
tees additional protection for the boiler. It is
recommended but not compulsory.
e cover kit includes:
N° 1 ermoformed cover
N°1 Gasket clamping plate
N°1 Gasket
N°1 Gasket tightening strap
N°1 Intake hole covering plate
e terminal kit includes:
N° 1 Gasket
N° 1 Exhaust ange Ø 80
N° 1 Elbow 90° Ø 80
N° 1 Drain pipe Ø 80
N° 1 Wall sealing plate

12
C13
1-13
C13
1-14
1-16
C13 C13
5
4
3
1
2
1
2
3
45
6
1-15
INSTALLERUSER
MAINTENANCE TECHNICIAN
e adaptor kit includes:
N° 1 - Gasket (1)
N° 1 - Adaptor Ø 80/125 (2)
e Kit Ø 80/125 includes:
N° 1 - Concentric bend Ø 80/125 a
87° (3)
N° 1 - Int./exhaust concentric termi-
nal Ø 80/125 (4)
N° 1 - Internal wall sealing plate (5)
N° 1 - External wall sealing plate (6)
e remaining kit components must
not be used
e kit includes:
N° 1 - Gasket (1)
N° 1 - Concentric bend Ø 60/100 (2)
N° 1 - Int./exhaust concentric terminal Ø 60/100 (3)
N° 1 - Internal wall sealing plate (4)
N° 1 - External wall sealing plate (5)
1.12 CONCENTRIC HORIZONTAL
KIT INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
e position of the terminal (in terms of dis-
tances 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 Ø 60/100 and Ø 80/125
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 proper system operation the terminal
with grid must be installed correctly ensuring
that, the "high" indication on the terminal is
observed during installation.
Horizontal intake-exhaust kit Ø 60/100 Kit
assembly (Fig. 1-13): install the bend with ange
(2) on the central hole of the boiler, positioning
gasket (1) with the circular projections down-
wards in contact with the boiler flange, and
tighten using the screws supplied with the kit. Fit
the Ø 60/100 (3) concentric terminal pipe with
the male side (smooth) to the female side of the
bend (2) up to the end stop; making sure that the
internal and external wall sealing plate have been
tted, this will ensure sealing and joining of the
elements making up the kit.
• Extensions for Ø 60/100 horizontal kit (Fig.
1-14). e kit with this conguration can be
extended up to a max. 12.9 horizontal m in-
cluding the terminal with grid and excluding
the concentric bend leaving the boiler. is
conguration corresponds to a resistance factor
of 100. In this case the special extensions must
be requested.
Immergas also provides a Ø 60/100 simplied
terminal, which in combination with its exten-
sion kits allows you to reach a maximum exten-
sion of 11.9 metres.
Horizontal intake-exhaust kit Ø 80/125 Kit
assembly (Fig. 1-15): to install the kit Ø 80/125
one must use the anged adapter kit in order
to install the ue system Ø 80/125. Install the
anged adaptor (2) on the central hole of the
boiler, positioning gasket (1) with the circular
projections downwards in contact with the boiler
ange and tighten using the screws supplied with
the kit. Engage the bend (3) with the male side
(smooth) to the end stop on the adapter (1). Fit
the Ø 80/125 (5) concentric terminal pipe with
the male side (smooth) to the female side of the
bend (4) (with lip seals) up to the end top; making
sure that the internal (6) and external wall sealing
plate (7) have been tted, this will ensure sealing
and joining of the elements making up the kit.
• Extensions for horizontal kit Ø 80/125 (Fig.
1-16). e kit with this conguration can be
extended up to a max. length of 32 m, includ-
ing the terminal with grid and excluding the
concentric bend leaving the boiler. If addi-
tional components are assembled, the length
equivalent to the maximum allowed must be
subtracted. In this case the special extensions
must be requested.
Max. 12900 mm)
Max. 32000 mm)
Max. 31956 mm)

13
C33 C33
1-18
1-201-19 C33 C33
7
46
5
1
2
3
1
2
3
4
5
6
7
1-17
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.13 CONCENTRIC VERTICAL KIT
INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Concentric vertical intake and exhaust kit. is
vertical terminal is connected directly to the out-
side of the building for air intake and ue exhaust.
N.B.: the vertical kit with aluminium tile enables
installation on terraces and roofs with a maxi-
mum slope of 45% (approx 25°) and the height
between the terminal cap and half-shell (374 mm
for Ø 60/100 and 260 mm for Ø 80/125) must
always be observed.
Vertical kit with aluminium tile Ø 60/100.
Kit assembly (Fig. 1-17): install the concentric
ange (2) on the central hole of the boiler, posi-
tioning gasket (1) with the circular projections
downwards in contact with the boiler ange, and
tighten using the screws supplied with the kit.
Installation of the fake aluminium tile: replace
the tiles with the aluminium sheet (4), shaping
it to ensure that rainwater runs o. Position
the xed half-shell (6) on the aluminium tile
and insert the intake-exhaust pipe (5). Fit the
Ø 60/100 (3) concentric terminal pipe with the
male side (5) (smooth) into the ange (2) up to
the end 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.
Note: when the boiler is installed in areas where
very rigid temperatures can be reached, a special
anti-freeze kit is available that can be installed as
an alternative to the standard kit.
• Extensions for vertical kit Ø 60/100 (Fig. 1-18).
e kit with this conguration can be extended
to a max. straight vertical length of 14.4 m,
including the terminal. This configuration
corresponds to a resistance factor of 100. In
this case specic extensions must be requested.
Vertical kit with aluminium tile Ø 80/125.
Kit assembly (Fig. 1-19): to install the kit Ø
80/125 one must use the anged adapter kit in
order to install the ue system Ø 80/125. Install
the anged adaptor (2) on the central hole of the
boiler, positioning gasket (1) with the circular
projections downwards in contact with the boiler
ange and tighten using the screws supplied
with the kit. Installation of the fake aluminium
tile: replace the tiles with the aluminium sheet
(4), shaping it to ensure that rainwater runs o.
Position the xed half-shell (5) on the aluminium
tile and insert the intake-exhaust pipe (7). Fit the
80/125 Ø concentric terminal pipe with the male
end (6) (smooth) to the female end of the adapter
(1) (with lip gasket) up to the stop; making sure
that the wall sealing plate (3) has been tted, this
will ensure sealing and joining of the elements
making up the kit.
• Extensions for vertical kit Ø 80/125 (Fig. 1-20).
e kit with this conguration can be extended
up to a max. length of 32 m including the ter-
minal. If additional components are assembled,
the length equivalent to the maximum allowed
must be subtracted. In this case specic exten-
sions must be requested.
e adaptor kit includes:
N° 1 - Gasket (1)
N° 1 - Adaptor Ø 80/125 (2)
e Kit Ø 80/125 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 Ø 80/125 (7)
e remaining kit components
must not be used
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 Ø
60/100 (5)
N° 1 - Fixed half-shell (6)
N° 1 - Mobile half-shell (7)
Max. 14400 mm)
Max. 45%
Max. 32000 mm)
Max. 45%

14
C83
1-23
C43
1-221-21
1
4
79
556
7
8
3
2
S
A
C53* - C83
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.14 SEPARATOR KIT INSTALLATION.
Type C configuration, sealed chamber and
fan assisted.
Separator kit Ø 80/80. is kit allows air to come
in from outside the building and the fumes to exit
from the chimney or ue through divided ue
exhaust and air intake pipes. Combustion prod-
ucts are expelled from pipe (S) (in plastic, so as
to resist acid condensate). Air is taken in through
duct (A) for combustion (this is also in plastic).
e intake pipe (A) can be installed either on the
right or le hand side of the central exhaust pipe
(S). Both ducts can be routed in any direction.
• Kit assembly (Fig. 1-21): install ange (4) on the
innermost hole of the boiler, positioning gasket
(1) with the circular projections downwards in
contact with the boiler ange, and tighten using
the hex screws with at tip supplied with the
kit. Remove the at ange present in the most
external hole 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 side (smooth) to
the bends (5) in the female side of the anges
(3 and 4). Fit the intake terminal (6) with the
male side (smooth) in the female side of the
bend (5) up to the end stop, ensuring that the
internal and external wall sealing plates are
tted. Fit the exhaust pipe (9) with the male
side (smooth) to the female side of the bend
(5) up to the end stop; making sure that the
internal wall sealing plate has been tted, this
will ensure sealing and joining of the elements
making up the kit.
• Installation clearances (Fig. 1-22). e mini-
mum installation clearance measurements of
the Ø 80/80 separator terminal kit have been
stated in some limit conditions.
• Extensions for separator kit Ø 80/80. The
maximum vertical straight length (without
bends) that can be used for Ø 80 intake and
exhaust pipes is 41 metres, regardless from
whether they are used for intake or exhaust.
e maximum horizontal straight length (with
bend in suction and in exhaust) that can be
used for Ø 80 intake and exhaust pipes is 36
metres, regardless from whether they are used
for intake or exhaust.
N.B.: to favour the removal of possible conden-
sate forming in the exhaust pipe, tilt the pipes
towards the boiler with a minimum slope of
1.5% (Fig. 1-23).
e kit includes:
N° 1 - Exhaust gasket (1)
N° 1 - Flange seal gasket (2)
N° 1 - Female intake ange (3)
N° 1 - Female drain 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 - Drain pipe Ø 80 (9)
* to er complete C53 conguration also provide for a roof discharge terminal.
minimum slope 1.5%

15
12
3
3
3
4567
689
A
10
11
12
12
1-25
1-24
A
B
A
C
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.15 ADAPTOR C9 KIT INSTALLATION.
is kit allows an Immergas boiler to be installed
in "C93" conguration, with combustion air intake
directly from the sha where the ue gas exhaust
is, obtained by means of a ducting system.
System composition.
e system must be combined with the following
components (sold separately) to be functional
and complete:
- kit C93 Ø 100 or Ø125 version
- ducting kit Ø 60 or Ø 80
- fumes exhaust kit Ø 60/100 or Ø 80/125 con-
gured according to the installation and type
of boiler.
Kit Assembly.
- Mount the components of kit "C9" on the door
(A) of the ducting system (Fig. 1-25).
- (Version Ø 125 only) mount the anged adap-
tor (11) interposing the concentric gasket (10)
on the boiler, tting it with the screws (12).
- Mount the ducting system as described in the
relative instructions sheet.
- Calculate the distances between the boiler drain
and the bend of the ducting system.
- Prepare the boiler ue system, making sure that
the internal pipe of the concentric kit is tted
properly in the bend of the ducting system
(quota "X" g. 1-26), while the external pipe
must be tted on the adaptor until it stops (1).
N.B.: to encourage the removal of possible
condensate forming in the exhaust pipe, tilt
the pipes towards the boiler with a minimum
slope of 1.5%.
- Mount the cover (A) complete with adaptor (1)
and caps (6) on the wall and assemble the ue
system to the ducting system.
N.B.: (version Ø 125 only) before assembly
check the gaskets are in the right position. In
the event component lubrication (already car-
ried out by the manufacturer) is not sucient,
remove the residual lubricant using a dry cloth,
then to ease tting coat the parts with common
or industrial talc.
Once all components have been assembled prop-
erly, the exhaust fumes will be expelled via the
ducting system; the combustion air for normal
boiler operation will be aspirated directly by the
sha (Fig. 1-26).
Technical data.
- e dimensions of the shas must ensure a
minimum gap between the outer wall of the
smoke duct and the inner wall of the sha: 30
mm for circular section shas and 20 mm in
the event of a square section sha (Fig. 1-24).
- Maximum 2 changes of direction are allowed
on the vertical section of the ue system with
a maximum clearance angle of 30° with respect
to the vertical.
- e maximum vertical extension using a Ø 60
ducting system is 13 m, the maximum exten-
sion includes 1 bend Ø 60/10 at 90°, 1 m of
horizontal pipe 60/100, 1 90° ducted bend Ø
60 and the roof terminal for ducting.
To determine the C93 ue system in congura-
tions other than that described (Fig. 1-26)
one must consider that 1 metre of ducted pipe
according to the indications described has a
resistance factor equal to 4.9.
- e maximum vertical extension using a Ø 80
ducting system is 28 m, the maximum exten-
sion includes 1 adapter 60/100 to 80/125, 1 87°
bend Ø 80/125, 1 m of horizontal pipe 80/125,
1 90° ducted bend Ø 80 and the roof terminal
for ducting.
To determine the C93 ue system in congura-
tions other than that described (Fig. 1-26) one
must consider the following pressure drops:
- 1 m of concentric pipe Ø 80/125 = 1 m of
ducted pipe;
- 1 87° bend = 1.4 m of ducted pipe;
Consequently one must subtract the equivalent
length of the part added to the 28 m available.
Rigid Ø 80
ducting (A)
mm
SHAFT
(B) mm
SHAFT
(C) mm
86 126 146
Flexible Ø 80
ducting (A)
mm
SHAFT
(B) mm
SHAFT
(C) mm
90 130 150
Rigid Ø 60
ducting (A)
mm
SHAFT
(B) mm
SHAFT
(C) mm
66 106 126
Kit composition:
Ref. Qty Description
1 1 Door adaptor Ø 100 or Ø 125
2 1 Door gasket made of neoprene
3 4 Screws 4.2 x 9 AF
4 1 Hex headed screw M6 x 20
5 1 Flat nylon washer M6
6 2 Door hole closure metal-sheet plate
plug
7 1 Plug gasket made of neoprene
8 1 Toothed washer M6
9 1 Nut M6
10 1 (kit 80/125) Concentric gasket Ø 60-100
11 1 (kit 80/125) Flanged adapter Ø 80-125)
12 4 (kit 80/125) Hex headed screws M4 x 16 slotted
- 1 (kit 80/125) Bag of lubricating talc
Installation drawings key:
Unique identication of the component in
the kit
Identication of the component not supplied
in this kit
1
A
Supplied separately:
Ref. Qty Description
A 1 Ducting kit door

16
1-27
C53
C93
X
1-26
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.16 DUCTING OF FLUES OR
TECHNICAL SLOTS.
Ducting is an operation through which, via
the introduction of one or more relevant pipes,
one achieves a system for the evacuation of the
combustion products of a gas appliance, made up
from the coupling of an existing or new ducting
pipe with a chimney, ue or technical slot (also
in new buildings) (Fig. 1-27). Ducting requires
ducts declared to be suitable for the purpose by
the manufacturer, following the installation and
user instructions, provided by the manufacturer
and the requirements of the standards in force.
Immergas ducting system. e Ø 60 rigid and Ø
80 exible “Green Range” ducting systems must
only be used for domestic use and with Immergas
condensing boilers.
In any case, ducting operations must respect
the provisions contained in the standard and in
current technical regulations. 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 environ-
mental conditions, according to current regula-
tions (absence of fumes, dusts or gases that can
alter the normal thermophysical or chemical
conditions; existence of temperatures coming
within the standard range of daily variation,
etc.).
- Installation and maintenance must be per-
formed according to the indications supplied
by the manufacturer and in compliance with
the provisions in force.
- e max. possible length of the Ø 60 exible
ducting vertical section is equal to 22 m. is
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in
exhaust, two 90° Ø 80 bends at boiler outlet.
- e max. possible length of the Ø 80 exible
ducting vertical section is equal to 30 m. is
length is obtained considering the complete
exhaust terminal, 1m of Ø 80 pipe in exhaust,
two 90° Ø 80 bends at boiler outlet for connect-
ing to the ducting system and two direction
changes of the exible hose inside the chimney/
technical slot.
- e maximum possible length of the Ø 80 rigid
ducting vertical section is equal to 30 m. is
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in ex-
haust, two 90° Ø 80 bends on the boiler outlet.
1.17 CONFIGURATION TYPE B, OPEN
CHAMBER AND FAN ASSISTED FOR
INDOORS.
e appliance can be installed inside buildings
in 23 or B53 mode; in this case, all technical rules
and national and local regulations in force, must
be complied with.
- type B open chamber boilers must not be
installed in places where commercial, artisan
or industrial activities take place, which use
products that may develop volatile vapours
or substances (e.g. acid vapours, glues, paints,
solvents, combustibles, etc.), as well as dusts
(e.g. dust deriving from the working of wood,
coal nes, cement, etc.), which may be harm-
ful for the components of the appliance and
jeopardise operation.
- in B23 and B53 conguration, the boilers must
not be installed in bedrooms, bathrooms or in
studio ats unless otherwise provided by local
regulations.
- e installation of appliances in B23 and B53 con-
gurations are only recommended outdoors (in
a partially-protected place) or in places that
are not lived in and which are permanently
ventilated.
For installation the cover kit must be used, re-
ferred to in paragraph 1.11.
1.18 FLUE GAS EXHAUST TO FLUE/
CHIMNEY.
e ue 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 B congurations,
exhaust is only allowed into individual chimney
or directly into the external atmosphere via a
relevant terminal, unless otherwise provided
by local regulations. 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 at-
tached. Multiple and combined ues must be
specially designed according to the calculation
method and requirements of the standards (e.g.
EN 13384), 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 POTS
AND TERMINALS.
e ues, chimneys and chimney pots for the
evacuation of combustion products must be in
compliance with applicable standards. Chimneys
and roof-installed exhaust terminals must com-
ply with the outlet height and with the distance
from technical volumes set forth by the technical
standards in force.
Positioning the wall ue exhaust terminals. e
wall ue exhaust terminals must:
- be installed on external perimeter walls of the
building;
- be positioned according to the minimum dis-
tances specied in current technical standards.
Combustion products exhaust of natural draught
or fan assisted appliances in open-top closed
environments. In spaces closed on all sides with
open tops (ventilation pits, courtyards etc.),
direct ue gas exhaust is allowed for natural or
forced 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 cock (Fig. 1-29 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 vent valves.
Close radiator vent valves when only water
escapes from them.
Close the lling cock when the boiler pressure
gauge indicates approx. 1.2 bar.
N.B.: during these operations, turn on the circu-
lating pump at intervals using the main switch on
the control panel. Vent the circulation pump by
loosening the front cap and keeping the motor run-
ning. Screw the cap back on aer the operation.
1.21 CONDENSATE TRAP FILLING.
On rst lighting of the boiler, ue gas may come
out the condensate drain; aer a few minutes’
operation check that this no longer occurs. is
means that the drain trap is lled with conden-
sate to the correct level preventing the passage
of ue gas.
1.22 GAS SYSTEM STARTUP.
To start up the system, refer to the technical
standard in force.
In particular, for new gas systems:
- open windows and doors;
- avoid presence of sparks or open ames;
- bleed all air from the pipelines;
- check that the internal system is properly sealed
according to the specications set forth by
technical regulations in force.
1.23 BOILER START UP IGNITION.
To commission the boiler (the operations listed
below must only be performed by qualied per-
sonnel and in the presence of professionals only):
- check that the internal system is properly sealed
according to the specications set forth by
technical regulations in force;
- make sure 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 check 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 intervenes in the
event of gas supply failure and check the relative
intervention time;
- check the intervention of the main switch
located upstream from the boiler and in the
boiler;
- check that the intake/exhaust concentric ter-
minal (if tted) is not blocked.
e boiler must not be started up even if only
one of the checks should be negative.

18
1-28
83%
100%
65%
65%
A
A
B
B
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.24 CIRCULATION PUMP.
e boilers are supplied with a variable speed
circulator pump. When the boiler is in central
heating mode the circulator speed is dened
by setting parameter “P57” in the conguration
menu (M5), in DHW mode the circulator always
works at the same speed.
During the heating stage the Auto and Fixed
operating modes are available.
N.B.: the ∆T can be controlled compatibly with
the characteristics of the central heating system
and of the boiler.
• Auto: automatic pump speed. In this mode one
can choose between the “Proportional head”
and “Constant ∆T” option.
Furthermore, within the parameter it is pos-
sible to adjust the operation range of the
circulator setting limit speed (adjustable from
83 % for model Victrix Zeus Superior 26 2 ErP
and 100 % for model Victrix Zeus Superior 32
2 ErP at 65 %) and minimum speed (adjustable
from 65 % to max. set speed)
- Proportional head (∆T = 0): the circulator
speed varies according to the power emit-
ted by the burner, the greater the power the
greater the speed.
- ∆T Constant (∆T = 5 ÷ 25 K): the pump
speed varies to maintain the ∆T constant
between the system ow and return accord-
ing to set value K.
• Fixed (100 % ÷ 65 %): in this mode the cir-
culator works at constant speed, the operating
range is dened between minimum (65 %) and
maximum (83% for Victrix Zeus Superior 26
2 ErP and 100 % for Victrix Zeus Superior 32
2 ErP).
N.B.: for the boiler to work properly, it is not
allowed to drop below the minimum value
indicated above.
Possible pump release. Manually release the mo-
tor sha by acting on the screw in the centre of
the head, press with a slotted screwdriver in axial
direction and carefully rotate the motor sha.
By-pass Regulation (part. 32 Fig. 1-29). 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 to
close the by-pass; turn anti-clockwise to open it.
Head available to the system.
Key:
A = Head available with by-pass closed by
1.5 turns with respect to all open
B = Power absorbed by the circulator pump
(dotted area)
Circulator pump absorbed power (W)Circulator pump absorbed power (W)
Flow rate (l/h)
Flow rate (l/h)
Head (kPa)Head (kPa)
Victrix Zeus Superior 26 2 ErP
Victrix Zeus Superior 32 2 ErP

19
1-29
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.25 KITS AVAILABLE ON REQUEST.
• System shut-off valve kits with or without
inspection lter (on request). e boiler is
designed for installation of system interception
cocks to be placed on ow and return pipes
of the connection assembly. is kit is very
useful for maintenance because it allows to
empty just the boiler without having to empty
the entire system. Moreover, the version with
lter preserves the functioning characteristics
of the boiler thanks to its inspectionable lter.
• System zone control unit kit (on request). If
the heating system is to be divided into several
zones (max. three), in order to interlock them
with separate adjustments and to keep water
ow rate high for each zone, Immergas supplies
zone system kits by request.
• Polyphosphate dispenser kit (on request). e
polyphosphate dispenser reduces the forma-
tion of lime-scale and preserves the original
heat exchange and domestic hot water pro-
duction 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.
• Recirculation kit (on request). The boiler
storage tank unit is prepared for application
of the pump kit. Immergas supplies a series of
ttings and attachments that allow connection
between the storage tank unit and domestic hot
water system. e pump kit attachment is also
envisioned on the template.
e above-mentioned kits are supplied complete
with instructions for assembly and use.
Key:
1 - System lling valve
2 - Condensate drain trap
3 - System draining valve
4 - Gas valve
5 - ree-way valve (motorised)
6 - 3 bar safety valve
7 - System pressure switch
8 - Boiler circulator pump
9 - Vent valve
10 - Fan
11 - Gas nozzle
12 - Venturi
13 - Detection electrode
14 - Condensation module
15 - Air intake pipe
16 - Flue probe
17 - Sample points (air A) - (ue gas F)
18 - Negative signal pressure point
19 - Burner
20 - Positive signal pressure point
21 - Manual air vent valve
22 - Ignition electrodes
23 - System expansion vessel
24 - Flow probe
25 - Safety thermostat
26 - Domestic hot water probe
27 - D.H.W. expansion vessel
28 - Return probe
29 - Stainless steel storage tank
30 - 8 bar safety valve
31 - Storage tank unit draining valve
32 - Adjustable by-pass
1.26 BOILER COMPONENTS.

20
2-1
INSTALLERUSER
MAINTENANCE TECHNICIAN
Key:
- Stand-by - On Button
A- Summer ()and winter ( ) operating mode button
B- DHW priority button ()
C- Reset (RESET) / exit menu (ESC) button
D- Menu entry button (MENU)/ data conrmation (OK) button
1 - Domestic hot water temperature selector
2 - Domestic hot water temperature set
3 - Central heating temperature selector
4 - Central heating temperature set
4 - Presence of anomalies
6 - Display of boiler functioning status
8 - Flame presence symbol and relative power scale
9 and 7 - Primary heat exchanger outlet water temperature
10 - Boiler in stand-by
11 - Boiler connected to remote control (Optional)
12 - Functioning in summer mode
13 - Antifreeze function in progress
14 - Functioning in winter mode
15 - Domestic hot water priority functioning active
16 - Presence of external connected devices
17 - Display of menu items
18 - Functioning with external temperature probe active
19 - Display of data conrmation or menu access
20 and 7 - Outside 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 - Multi-function display
2.3 CONTROL PANEL.
2USE AND MAINTENANCE INSTRUCTIONS
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”.
2.2 GENERAL WARNINGS.
Never expose the wall-mounted boiler to direct
vapours from cooking hobs.
Use of the boiler by unskilled persons or children
is prohibited.
For safety purposes, check that the concentric
air intake/ue exhaust terminal (if tted), is not
blocked, even just temporarily.
If temporary shutdown of the boiler is required,
proceed as follows:
a) drain the water system if antifreeze is not used;
b) shut-o all electrical, water and gas supplies.
In the event of work or maintenance on struc-
tures located in the vicinity of ducting or devices
for ue extraction and relative accessories, switch
o the appliance and on completion of operations
ensure that a qualied technician checks the ef-
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.
• Attention: the use of components involving use
of electrical power requires some fundamental
rules to be observed, such as:
- do not touch the appliance with wet or moist
parts of the body; do not touch when bare-
foot;
- never pull electrical cables nor leave the ap-
pliance exposed to weathering (rain, sunlight,
etc.);
- the appliance power cable must not be re-
placed by the user;
- in the event of damage to the cable, switch o
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.
N.B.: the temperatures indicated by the display
have a tolerance of +/- 3°C due to environmental
conditions that cannot be attributed to the boiler.
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 qualied rm. Con-
tact the manufacturer for disposal instructions.