Immergas VICTRIX Zeus 26 1 I User manual

VICTRIX Zeus
26 1 I
Instruction booklet and
warning IE
*1.036646ENG*

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 Immergas 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. Installation
and maintenance must be performed in compliance with the regulations in force, according to the manufacturer’s instructions and by professionally qualied
sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law.
Improper installation or assembly of Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to persons, animals
and objects. Read the provided product instructions carefully in order to install the product correctly.
Maintenance must be carried out by skilled technical sta. e Immergas Authorised Aer-sales Service represents a guarantee of qualications and profes-
sionalism.
e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially
dangerous.
If errors occur during installation, operation and maintenance, due to non compliance with technical laws in force, standards or instructions contained in this
book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages and the
appliance warranty is invalidated.
For further information regarding legislative and statutory provisions relative to the installation of gas heat generators, consult the Immergas site at the fol-
lowing address: www.immergas.com.
DECLARATION OF CONFORMITY
For the purpose and eect of the 2009/142/CE Gas Appliance Directive, 2004/108/CE EMC Directive, 92/42/CE Eciency Directive and 2006/95/CE
Low Voltage Directive.
e Manufacturer: Immergas S.p.A. v. Cisa Ligure n° 95 42041 Brescello (RE)
DECLARES THAT: the Immergas boiler model: Victrix Zeus 26 1 I
is in compliance with the same European Community Directives Signature:
Mauro Guareschi
Research & Development Director

Immergas S.p.A. declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial
documents without forewarning.
INDEX
USER pag.INSTALLATOR pag. MAINTENANCE TECHNICIAN page
1 Boiler installation................................................. 5
1.1 Installation recommendations...........................5
1.2 Main dimensions..................................................5
1.3 Anti-freeze protection. ........................................6
1.4 Connection group. ...............................................6
1.5 Remote controls and room timer thermostats
(optional)................................................................7
1.6 External probe (optional)....................................8
1.7 Immergas ue systems.........................................8
1.8 Outdoor installation in partially protected area.
8
1.9 Indoor installation..............................................11
1.10 Ducting of existing ues....................................13
1.11 Flue exhaust to ue/chimney. ..........................13
1.12 Flues, chimneys and chimney caps.................13
1.13 System lling........................................................13
1.14 Filling the condensate trap................................13
1.15 Gas system start-up. ...........................................14
1.16 Boiler start up (ignition). ..................................14
1.17 Circulation pump. ..............................................14
1.18 Domestic hot water storage tank unit............14
1.19 Kits available on request....................................14
1.20 Boiler components. ............................................15
2 Instructions for use and maintenance............16
2.1 Cleaning and maintenance...............................16
2.2 General warnings................................................16
2.3 Control panel.......................................................16
2.4 Boiler ignition......................................................17
2.5 Fault and anomaly signals.................................17
2.6 Boiler shutdown..................................................18
2.7 Restore heating system pressure......................18
2.8 Draining the heating circuit.............................18
2.9 Draining the storage tank. ................................18
2.10 Anti-freeze protection. ......................................18
2.11 Case cleaning.......................................................18
2.12 Decommissioning. .............................................18
3 Boiler commissioning
(initial check).......................................................19
3.1 Hydraulic layout..................................................19
3.2 Wiring diagram...................................................20
3.3 Troubleshooting..................................................20
3.4 Converting the boiler to other types of gas...21
3.5 Calibration phase................................................21
3.6 Nominal heat output calibration.....................21
3.7 Adjustment of the air-gas ratio. .......................22
3.8 Checks following conversion to
another type of gas..............................................22
3.9 Pump operating mode.......................................22
3.10 Domestic hot water mode selector..................22
3.11 Solar panels coupling function........................22
3.12 “Chimney sweep function”................................22
3.13 Pump anti-block function. ...............................22
3.14 ree-way anti-block system...........................22
3.15 Permanent reduction of timing function......22
3.16 Radiators anti-freeze function. ........................22
3.17 Flow temperature value in central heating
mode......................................................................22
3.18 Casing removal....................................................22
3.19 Yearly appliance check and maintenance......22
3.20 Variable heat power. ...........................................24
3.21 Combustion parameters. ..................................24
3.22 Technical data......................................................25
3.23 Data plate key.......................................................26

5
1-1 1-2
SI NO
INSTALLATORUSER
MAINTENANCE TECHNICIAN
YES NO
1BOILER INSTALLATION
1.1 INSTALLATION
RECOMMENDATIONS.
e Victrix Zeus 26 1 I boiler has been designed
uniquely for wall-installation, for the heating of
rooms for domestic use and similar.
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 boiler if installed using the relevant
terminal for air intake directly from the room
in which the boiler has been installed.
- Type C boiler if installed using concentric
pipes or other types of pipes envisioned for
the sealed chamber boiler for intake of air and
expulsion of fumes.
Only professionally qualied heating/plumbing
technicians are authorised to install Immergas
gas appliances.
Installation must be carried out according to the
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 ue removal connections. Keep all amma-
ble objects away from the appliance (paper, rags,
plastic, polystyrene, etc.).
Do not place household appliances underneath
the boiler as they could be damaged if the safety
valve intervenes (if not conveyed away by a
discharge funnel), or if there are leaks from the
connections; on the contrary, the manufacturer
cannot be held responsible for any damage cau-
sed to the household appliances.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o immediately and
contact a qualied technician (e.g. the Immergas
Aer-Sales 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 in-
stalled outside in a partially protected area. A
partially protected location is one in which the
appliance is not exposed to the direct action of
the weather (rain, snow, hail, etc..).
Important: Wall mounting of the boiler must
guarantee stable and ecient support for the
generator.
e plugs (standard supply) are to be used only in
conjunction with the mounting brackets or xing
template to x the appliance to the wall; they only
ensure adequate support if inserted correctly
(according to technical standards) in walls made
of solid or semi-hollow brick or block. In the
case of walls made from hollow brick or block,
partitions with limited static properties, or in any
case walls other than those indicated, a static test
must be carried out to ensure adequate support.
N.B.: the hex head screws supplied in the blister
pack are to be used exclusively to x the relative
mounting bracket to the wall.
ese boilers are used to heat water to below
boiling temperature in atmospheric pressure.
ey must be connected to a central heating
system and hot water circuit suited to their
performance and capacity.
Key:
V - Electrical connection
G - Gas supply
SC - Condensate drain
(minimum internal diameter Ø 13 mm)
R - System return
M - System delivery
RC - Recirculation (optional)
AC - Domestic hot water outlet
AF - Domestic cold water inlet
N.B.: Connection group (optional)
Height
(mm)
Width
(mm)
Depth
(mm)
863 580 380
CONNECTIONS
GAS DOMESTIC
HOT WATER SYSTEM
G R M AC AF
1/2” 3/4” 3/4” 1/2” 1/2”
1.2 MAIN DIMENSIONS.

6
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.3 ANTIFREEZE 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.
e anti-freeze function is only guaranteed if:
- the boiler is correctly connected to gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in stand-by ( );
- the boiler is not in no ignition block (par. 2.5);
- the boiler essential components are not faulty.
In these conditions the boiler is protected against
freezing to an environmental temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature falls
below -5°C and in the event there is no gas, or
the boiler goes into ignition block, the appliance
may freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- Protect the heating circuit from freezing by
introducing a good quality anti-freeze liquid
(specifically for heating systems), carefully
following the manufacturer’s instructions re-
garding the percentage necessary with respect
to the minimum temperature required for
preserving the system.
The materials the boilers are made from are
resistant to ethylene and propylene glycol-based
anti-freeze liquids.
For life and possible disposal, follow the supplier’s
instructions.
- Protect the domestic hot water circuit and
the condensate drain trap against freezing by
using an accessory that is supplied on request
(anti-freeze kit) comprising two electric heat-
ing elements, the relevant cables and a control
thermostat (carefully read and follow the instal-
lation instructions contained in the accessory
kit pack).
Boiler anti-freeze protection is thus ensured only if:
- the boiler is correctly connected to the electricity
power supply circuits and powered;
- the anti-freeze kit components are ecient.
In these conditions the boiler is protected against
freezing to temperature of -15°C.
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 falls below 0°C the domestic water
and heating connection pipes must be insulated.
1.4 CONNECTION GROUP.
Gas connection (Appliance category II2H3B/P).
Our boilers are designed to operate with methane
gas (G20) and LPG. Supply pipes must be the
same as or larger than the 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 conver-
ting 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, as insucient levels can reduce generator
output and cause malfunctions.
Ensure correct gas cock connection. e gas
supply pipe must be suitably dimensioned accor-
ding 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 specications).
e coupling system must conform to standards.
Fuel gas quality. e appliance has been desig-
ned to operate with gas free of impurities; other-
wise it is advisable to t special lters upstream
from the appliance to restore the purity of the gas.
Storage tanks (in case of supply from LPG
depot).
- New LPG storage tanks may contain residual
inert gases (nitrogen) that degrade the mixture
delivered to the appliance casing functioning
anomalies.
- Due to the composition of the LPG mixture,
layering of the mixture components may occur
during the period of storage in the tanks. is
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
Hydraulic connection.
Important: 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.
In order to avoid scaling in the central heating
system, the provisions given in the regulations
on water treatment in heating systems for civil
use must be respected.
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.
Important: to preserve the duration and ecien-
cy of the domestic hot water exchanger it is recom-
mended to install the “antiscale” kit in the presence
of water whose characteristics can give rise to scale
deposits (in particular, and as an example, the kit
is recommended when water hardness is higher
than 25 French degrees).
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 dia-
meter of at least 13 mm. e system connecting
the appliance to the drainage system must be
carried out in such a way as to prevent freezing of
the liquid contained in it. Before appliance start-
up, ensure that the condensate can be correctly
removed. Also, comply with national and local
regulations on discharging waste waters.
Electric connection. e “Victrix Zeus 26 1 I”
boiler has an IPX4D protection rating for the
entire appliance. Electrical safety of the appliance
is reached only when it is correctly connected
to an ecient earthing system as specied by
current safety standards.
Important: Immergas S.p.A. declines any
responsibility for damage or physical injury
caused by failure to connect the boiler to an
ecient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation
corresponds to maximum absorbed power
specications as shown on the boiler data-plate.
e boilers are supplied complete with an “X”
type power cable without plug. e power sup-
ply 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. When replacing the power
supply cable, contact a qualied technician (e.g.
the Immergas Aer-Sales Technical Assistance
Service). e power cable must be laid as shown.
In the event of mains fuse replacement on the
control card, use a 3.15A quick-blow fuse. For
the main power supply to the appliance, never
use adapters, multiple sockets or extension leads.
If during connection the L-N polarities are not
respected, the boiler does not detect ame pre-
sence and goes into ignition block.
Important: also in the case in which the L-N
polarity is not respected, if there is temporary
residual voltage exceeding 30V on the neutral,
the boiler could function all the same (but only
temporarily). Measure the voltage using appro-
priate instruments, without trusting the voltage
tester screwdriver.

7
1-3
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.5 REMOTE CONTROLS AND
ROOM TIMER THERMOSTATS
OPTIONAL.
e boiler is prepared for the application of room
chrono thermostats or remote controls, which are
available as optional kits. (Fig. 1-3)
All Immergas chrono thermostats are connec-
ted with 2 wires only. Carefully read the user
and assembly instructions contained in the
accessory kit.
• On/O digital chrono thermostat. e timer
thermostat allows:
- to set two room temperature values: one for
day (comfort temperature) and one for night
(lower temperature);
- to set up to four on/o dierential weekly
programs;
- selecting the required function mode from
the various possible alternatives:
• permanent operation in comfort temp;
• permanent operation in lower temp;
• permanent operation in adjustable anti-freeze
temp.
e chrono thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• CARV2 Remote Control with climate timer
thermostat function. e Comando Amico
RemotoV2 remote control panel enables the
user to control the information regarding
operation of the appliance and the heating
system the user can change intervening on the
previously set parameters without having to go
to the place where the appliance is installed.
e CARV2 Remote Control panel is provided
with self-diagnosis to display any boiler opera-
ting anomalies. e climate timer thermostat
incorporated into the remote panel enables
the system ow temperature to be adjusted to
the actual needs of the room being heated, in
order to obtain the desired room temperature
with extreme precision and therefore with
evident saving in running costs. It also allows
to display the eective room temperature and
the external temperature (if external probe is
present). e timer thermostat is fed directly
by the boiler by means of the same 2 wires used
for the transmission of data between boiler and
timer thermostat.
Important: if the system is subdivided into zones
using the relevant kit the CARV2 must be used
with its climate thermostat function disabled,
i.e. it must be set to On/O mode.
CARV2 Remote Control or On/Off chrono
thermostat electric connection (Optional). e
operations described below must be performed
aer having removed the voltage from the appli-
ance. 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 electronic control board would
be damaged. Any CARV2 must be connected by
means of the IN+ and IN- clamps to clamps 42
and 43 on the terminal board (in control panel),
eliminating jumper X40 and respecting polarity
(Fig. 3-2). Connection with the wrong polarity
prevents functioning, but without damaging the
CARV2. Only one remote control can be con-
nected to the boiler. e boiler operates with the
parameters set on the CARV2 Remote Control
only if the boiler main switch is positioned on
DHW/Comando Amico RemotoV2 ( ).
Important: If the Comando Amico RemotoV2
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.
Installation with system operating at direct
low temperature. e boiler can directly power
a low temperature system by acting on the jum-
per (8 Fig. 3-4) and setting the ow temperature
adjustment range of 50÷25°C (par. 3.17). In this
situation it is good practice to insert a safety de-
vice in series with the boiler power supply, 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.
On/O digital timer thermostat.
Comando Amico Remoto remote controlV2 (CARV2)

8
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58
1-5
1-4
(A)
(B)
1-6 1-7
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.6 EXTERNAL PROBE OPTIONAL.
e boiler is prepared for the application of the
external probe (Fig. 1-4), which is available as
an optional kit.
e probe can be connected directly to the boiler
electrical circuit and allows the max. system ow
temperature to be automatically decreased when
the external temperature increases, in order to
adjust the heat supplied to the system according
to the change in external temperature. e ex-
ternal probe always operates when connected,
regardless of the presence or type of room timer
thermostat used and can work in combination
with Immergas chrono thermostats. e cor-
relation between system ow temperature and
external temperature is determined by the po-
sition of the selector on the boiler control panel
according to the curves shown in the diagram
(Fig. 1-5). e electric connection of the external
probe must be made on clamps 38 and 39 on the
boiler P.C.B. (Fig. 3-2).
1.7 IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the boiler regarding the installation of air
intake terminals and ue extraction; fundamen-
tal for boiler operation.
Important: the boiler must be installed exclusi-
vely with an original Immergas “Green Range”
air intake and fume system. is system can be
identied by an identication mark and special
distinctive marking bearing the note: “only for
condensing boilers”. e types of terminals
made available by Immergas are:
• Resistance factors and equivalent lengths. Each
ue system 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 or the actual
dimensions. 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
individual component has a resistance corre-
sponding to a certain length in metres of pipe
of the same diameter; the so-called equivalent
length, obtained from the ration 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 enables calculations in order to
verify the possibility of various congurations
of ue extraction systems.
Positioning of the gaskets (black) for “green
series” ue systems. Position the gasket correctly
(for bends and extensions) (Fig. 1-6):
- gasket (A) with notches, to use for bends;
- gasket (B) without notches, to use for exten-
sions;
N.B.: if component 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 supplied
with the kit talc.
1.8 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..).
• Conguration type B, open chamber and fan
assisted.
Using the relevant cover kit, direct air intake is
possible (Fig. 1-7) and combustion products are
exhausted into a single chimney 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 environ-
ment in which the boiler is installed and only
functions in permanently ventilated rooms;
- the ue chimney must be connected to its own
individual ue or channelled directly into the
external atmosphere.
The technical regulations in force must be
respected.
TM = Flow temperature °C.
TE = External
temperature °C.
Position of the central heating
user adjustment selector.
In brackets, temperature value with 25°/50°C range

9
1-91-8
1-10
INSTALLATORUSER
MAINTENANCE TECHNICIAN
• Cover kit assembly (Fig. 1-8). 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
joining of the elements making up the kit.
Max. length of exhaust duct. e exhaust duct
(in vertical or in horizontal) can be extended
to a max. measurement of 30 straight metres
in order to prevent problems of combustion
product condensation owing to their cooling
through the wall.
• Coupling of extension pipes. To install push-
tting extensions with other elements of the
flue extraction elements assembly, proceed
as follows: Couple the pipe or elbow with the
male side (smooth) in the female side (with lip
seal) to the end stop on the previously installed
element. is will ensure sealing eciency of
the coupling.
Example of installation with direct vertical
terminal in partially protected location. When
the vertical terminal for direct discharge of com-
bustion products is used, a minimum gap of 300
mm must be le between the terminal and the
balcony above (Fig. 1-10). e distance A + B
(always with respect to the balcony above), must
be equal to or more than 2000 mm.
• 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
concentric intake/ exhaust kits. Refer to the
paragraph relative to indoor installation. In this
conguration the upper cover kit guarantees
additional protection for the boiler. It is recom-
mended but not compulsory.
e cover kit includes:
N°1 Heat moulded cover
N°1 Ø 41 Intake diaphragm
N°1 Gasket clamping plate
N°1 Gasket
N°1 Gasket clamp
e terminal kit includes:
N° 1 Gasket
N° 1 Exhaust ange Ø 80
N° 1 Bend 90° Ø 80
N° 1 Exhaust pipe Ø 80
N° 1 Wall sealing plate
Cover kit
Vertical terminal kit for direct
discharge

10
INSTALLATORUSER
MAINTENANCE TECHNICIAN
Tables of Resistance Factors and Equivalent Lengths.
DUCT TYPE
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
Concentric pipe Ø 60/100 m 1 Intake and
Exhaust 6.4 m 1 Intake m 7,3 Exhaust m1,9
Exhaust m 5,3
Concentric bend 90° Ø 60/100 Intake and
Exhaust 8,2 m 1,3 Intake m 9,4 Exhaust m 2,5
Exhaust m 6,8
Concentric bend 45° Ø 60/100 Intake and
Exhaust 6,4 m 1 Intake m 7,3 Exhaust m 1,9
Exhaust m 5,3
Terminal complete with concentric hori-
zontal intake-exhaust Ø 60/100 Intake and
Exhaust 15 m 2,3
Intake m 17,2
Exhaust m 4,5
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
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
Exhaust m 13,6
Concentric vertical intake-
exhaust terminal Ø 60/100 Intake and
Exhaust 9 m 1,4
Intake m 10,3
Exhaust m 2,7
Exhaust m 7,5
Pipe Ø 80, 1 m Intake 0,87 m 0,1 Intake m 1,0 Exhaust m 0,4
Exhaust 1,2 m 0,2 Exhaust m 1,0
Complete intake terminal Ø 80, 1 m
Intake 3 m 0,5 Intake m 3,4 Exhaust m 0,9
Intake terminal Ø 80
Drain terminal Ø 80 Intake 2,2 m 0,35 Intake m 2,5 Exhaust m 0,6
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
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
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
Exhaust 2,7
Bend 90° Ø 60 for ducting
Exhaust 3,5 m 0,55 Intake 4,0 Exhaust m 1,1
Exhaust 2,9
Reduction Ø 80/60 Intake and
Exhaust 2,6 m 0,4 Intake m 3,0 Exhaust m 0,8
Exhaust m 2,1
Terminal complete with exhaust
vertical Ø 60 for ducting
Exhaust 12,2 m 1,9
Intake m 14
Exhaust m 3,7
Exhaust m 10,1

11
C13 C13
C33 C33
1-12
1-141-13
1-11
7
1
2
3
46
5
5
4
3
1
2
INSTALLATORUSER
MAINTENANCE TECHNICIAN
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 white wall sealing plate (4)
N° 1- External grey wall sealing plate (5)
1.9 INDOOR INSTALLATION.
• Type C conguration, sealed chamber and
fan assisted.
Horizontal concentric kit Ø 60/100. Kit assem-
bly (Fig. 1-11): install the bend with ange (2) on
the most internal hole of the boiler, positioning
the gasket (1) (which does not require lubrica-
tion) positioning it with the circular projections
downwards in contact with the boiler ange and
tighten using the screws preset in the kit. Fit
the Ø 60/100 (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 plates have
been tted, this will ensure sealing and joining
of the elements making up the kit.
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.
• Coupling extension pipes and concentric
elbows Ø 60/100. To push-t extensions with
other elements of the ue extraction elements,
operate 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. is will
ensure sealing and joining of the elements
correctly.
e kit Ø 60/100 can be installed with the rear,
right side, le side or front outlet.
• Extensions for horizontal kit (Fig. 1-12). e
concentric intake-exhaust kit Ø 60/100 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.
N.B.: when installing the pipes, a section clamp
with pin must be installed every 3 metres.
• External grid. N.B.: for safety purposes, do not
even temporarily obstruct the boiler intake-
exhaust terminal.
Vertical kit with aluminium tile Ø 60/100.
Kit assembly (Fig. 1-13): install the concentric
flange (2) on the most internal hole of the
boiler, positioning the gasket (1) (which does
not require lubrication) positioning it with the
circular projections downwards in contact with
the boiler ange and tighten using the screws
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 Ø 60/100 (3) concentric terminal pipe
with the male end (5) (smooth) into the ange (2)
up to the stop; making sure that the wall sealing
plate has been tted (3), this will ensure sealing
and joining of the elements making up the kit.
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.
• Coupling extension pipes and concentric
elbows. To install push-fitting extensions
with other elements of the flue extraction
elements assembly, 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.
Important: if the exhaust terminal and/or exten-
sion concentric pipe needs shortening, consider
that the internal duct must always protrude by 5
mm with respect to the external duct.
is specic terminal enables ue exhaust and
air intake, necessary for combustion, in a vertical
direction.
N.B.: the Ø 60/100 vertical kit with aluminium
tile enables installation on terraces and roofs with
a maximum slope of 45% (25°) and the height
between the terminal cap and half-shell (374
mm) must always be respected.
e vertical kit with this conguration can be
extended to a max. straight vertical length of 14.4
mincluding the terminal. is conguration
corresponds to a resistance factor of 100. In this
case the special extensions must be requested.
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)
MAXIMUM LENGTH 14400 mm

12
C83
C43C53 1-16
1-15
1-17
1
4
7
9
5
5678
3
2
S
A
INSTALLATORUSER
MAINTENANCE TECHNICIAN
Twin pipe ue kit Ø 80/80. e Ø 80/80 twin
pipe ue kit, allows separation of the exhaust ues
and air intake pipes according to the diagram
shown in the gure. 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 duct (S). Both
ducts can be routed in any direction.
• Kit assembly (Fig. 1-15): install the ange (4)
on the most internal hole of the boiler, posi-
tioning the gasket (1) (which does not require
lubrication) positioning it with the circular
projections downwards in contact with the
boiler ange and tighten using the hex screws
with at end present in 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 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)
to the end stop, ensuring that the internal and
external rings 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. is will ensure sealing and joining of
the elements making up the kit.
• Coupling of extension pipes and elbows. To
install push-tting extensions with other ele-
ments of the ue extraction elements assembly,
proceed as follows: Install the pipe or elbow
with the male side (smooth) on the female
section (with lip seal) to the end stop on the
previously installed element. is will ensure
sealing and joining of the elements correctly.
• Installation clearance (Fig. 1-16). e mini-
mum installation clearance measurements of
the Ø 80/80 twin pipe ue kit have been stated
in some limit conditions.
• Extensions for Ø 80/80 twin pipe ue kit. e
maximum vertical straight length (without
bends) is 41 metres, independently to whe-
ther they are used for intake or exhaust. e
maximum horizontal straight length (with
bend in suction and in exhaust) is 36 metres
independently to 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 to-
wards the boilers with a min. slope of 1.5%. (Fig.
1-17). When installing the Ø 80 ducts, a section
clamp with pin must be installed every 3 metres.
e kit includes:
N° 1- Exhaust gasket (1)
N° 1- Flange gasket (2)
N° 1- Female intake ange (3)
N° 1- Female exhaust ange (4)
N° 2- Bend 90° Ø 80 (5)
N° 1- Intake terminal Ø 80 (6)
N° 2- Internal white wall sealing plates (7)
N° 1- External grey wall sealing plate (8)
N° 1- Exhaust pipe Ø 80 (9)
• Conguration type open chamber and fan
assisted.
e appliance can be installed inside buildings in
B23 mode; in this eventuality, all technical rules
and national and local regulations in force, must
be complied with.
- Type B open chamber boilers must not be
installed in places where commercial, artisan
or industrial activities take place, which use
products that may develop volatile vapours
or substances (e.g. acid vapours, glues, paints,
solvents, combustibles, etc.), as well as dusts
(e.g. dust deriving from the working of wood,
coal nes, cement, etc.), which may be dama-
ging for the components of the appliance and
jeopardise functioning.
Minimum slope of 1.5%

13
1-18
C83
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.10 DUCTING OF EXISTING FLUES.
Ducting is an operation through which, within
the context of restructuring a system and with the
introduction of one or more special ducts, a new
system is executed for evacuating the fumes of a
gas appliance, starting from an existing ue (or a
chimney) or a technical hole (Fig. 1-18). 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, Ø80
exible and Ø80 rigid “Green Range” ducting
systems must only be used for domestic use and
with Immergas condensing boilers.
In any case, ducting operations must respect
the provisions contained in the standard and in
current technical regulations; in particular, the
declaration of conformity must be compiled at
the end of work and on commissioning of the
ducted system. e instructions in the project
or technical report must likewise be followed, in
cases provided for by the standard and current
technical regulations. e system or components
of the system have a technical life complying with
current standards, provided that:
- it is used in average atmospheric and envi-
ronmental conditions, according to current
regulations (absence of combustion products,
dusts or gases that can alter the normal ther-
mophysical or chemical conditions; existence
of temperatures coming within the standard
range of daily variation, etc.).
- Installation and maintenance must be perfor-
med according to the indications supplied by
the manufacturer and in compliance with the
provisions in force.
- e max. possible length of the Ø 60 rigid
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 connec-
ting to the ducting system and two direction
changes of the exible tube inside the ue/
technical hole.
- e max. possible length of the Ø 80 rigid
ducting vertical section is equal to 30 m. is
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in
exhaust, two 90° Ø 80 bends at boiler outlet.
1.11 FLUE EXHAUST TO FLUE/CHIMNEY.
e ue exhaust does not necessarily have to be
connected to a branched type traditional ue. e
ue exhaust can be connected to a special LAS
type multiple ue. 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.
1.12 FLUES, CHIMNEYS AND CHIMNEY
CAPS.
e ues, chimneys and chimney caps for the
evacuation of combustion products must be in
compliance with applicable standards.
Positioning the draught terminals. Draught
terminals must:
- be installed on external perimeter walls of the
building;
- be positioned according to the minimum di-
stances specied in current technical standards.
Combustion products exhaust of fan assisted
appliances in open-top closed environments. In
spaces closed on all sides with open tops (venti-
lation pits, 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.
1.13 SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling via the lling valve (Fig. 1-20 and
2-2). Filling is performed at low speed to ensure
release of air bubbles in the water via the boiler
and heating system air 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 air 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 cir-
culation 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.
1.14 FILLING THE CONDENSATE TRAP.
On rst ignition of the boiler combustion pro-
ducts 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.

14
1-19
B
A
D
C
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.15 GAS SYSTEM STARTUP.
To start up the system proceed as follows:
- open windows and doors;
- avoid presence of sparks or naked ames;
- bleed all air from pipelines;
- check that the internal system is properly sealed
according to specications.
1.16 BOILER START UP IGNITION.
Following must be performed for boiler start-up:
- check that the internal system is properly sealed
according to specications;
- ensure that the type of gas used corresponds to
boiler settings;
- switch the boiler on and ensure correct ignition;
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual ( Par. 3.20);
- ensure that the safety device is engaged in the
event of gas supply failure and check activation
time;
- check the intervention of the main switch
located upstream from the boiler and in the
boiler;
- check that the concentric intake-exhaust ter-
minal (if tted) is not blocked.
e boiler must not be started up even if only
one of the checks should be negative.
N.B.: the boiler preliminary check must be carried
out by a qualied technician. e boiler warranty
is valid as of the date of testing.
e test certicate and warranty is issued to the
user.
1.17 CIRCULATION PUMP.
e “Victrix Zeus 26 1 I” boiler is supplied with
a built-in circulator pump with 3-position elec-
tric speed control. e boiler does not operate
correctly with the circulator on rst speed. To
ensure optimal boiler operation, in the case of
new systems (single pipe and module) it is re-
commended to use the pump at maximum speed.
e circulator is already tted with a capacitor.
Pump release. If, aer a prolonged period of
inactivity, the circulator 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.
1.18 DOMESTIC HOT WATER STORAGE
TANK UNIT.
The Victrix Zeus 26 1 I storage tank unit is
the accumulation type with a capacity of 45
litres. It contains a coiled stainless steel heat
exchanger pipe, which allows to notably reduce
hot water production times. ese storage tanks
constructed with stainless steel casing and bot-
toms, guarantee long duration through time.
e assembly concepts and welding (T.I.G.) are
implemented to the minimum detail to ensure
maximum reliability. The lower inspection
ange ensures practical control of the storage
tank unit and the coiled heat exchanger pipe
and easy internal cleaning. e domestic hot
water connections are placed on the ange (cold
inlet and hot outlet) along with the Magnesium
Anode support cap including the same, supplied
as standard for internal protection of the storage
tank unit from possible corrosion.
N.B.: every year a skilled technician (e.g. Im-
mergas Authorised Aer-sales Service), must
check the eciency of the storage tank Anode.
e storage tank unit is prepared for introduction
of the domestic hot water pump tting.
A = Head available to the system
at third speed
(with by-pass excluded)
B = Head available to the system
at third speed
(with by-pass)
C = Head available to the system
at second speed
(with by-pass)
D = Head available to the system
at second speed
(with by-pass)
1.19 KITS AVAILABLE ON REQUEST.
• System shuto valve kits with or without in-
spectionable lter. e boiler is designed for
installation of system cut-o cocks to be placed
on ow and return pipes of the connection
assembly. is kit is very useful for mainte-
nance 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. 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.
• Anti-scale kit. e dosing system polyphospha-
te reduces the formation of limestone and pre-
serves the original heat exchange and domestic
hot water production conditions. e boiler is
prepared for application of the polyphosphate
dosing system kit.
• Relay board. e boiler is prepared for the
installation of a one relay board, which allows
to control the main zone using the CARV2
(optional).
• Cover kit. If installed outdoors in a partially
protected place with direct air intake, it is
compulsory to mount the appropriate top pro-
tection cover for the correct functioning of the
boiler and to protect it from adverse weather
conditions.
• Recirculation. e storage tank is prepared for
application of the recirculation kit. Immergas
supplies a series of ttings and attachments that
allow connection between the cylinder and do-
mestic hot water system. e recirculation kit
connection is also envisioned on the template.
e above-mentioned kits are supplied complete
with instructions for assembly and use.
Total head available to the system.
Head (m H2O)
Flow rate (l/h)
Head (kPa)

15
1-20
INSTALLATORUSER
MAINTENANCE TECHNICIAN
Key:
1 - System lling valve
2 - Condensate drain trap
3 - Gas valve
4 - 3-way valve (motorised)
5 - 3 bar safety valve
6 - Flue pressure switch
7 - Boiler pump
8 - Air vent valve
9 - Fan
10 - Gas nozzle
11 - Venturi
12 - Detection electrode
13 - Condensation module
14 - Flue safety thermostat
15 - Air intake pipe
16 - Sample points (air A) - (fumes F)
17 - Negative signal pressure point
1.20 BOILER COMPONENTS.
18 - Burner
19 - Positive signal pressure point
20 - Manual air vent valve
21 - Ignition electrode
22 - System expansion vessel
23 - Domestic hot water expansion vessel
24 - Flow probe
25 - Safety thermostat
26 - Control panel
27 - Domestic hot water probe
28 - Stainless steel storage tank
29 - 8 bar safety valve
30 - Storage tank drain cock
31 - System draining valve
N.B.: Connection group (optional)

16
2-1
INSTALLERUSER
MAINTENANCE TECHNICIAN
2INSTRUCTIONS FOR USE AND MAINTENANCE.
2.1 CLEANING AND MAINTENANCE.
Important: the heating plants must undergo
periodical maintenance (regarding this, see the
section dedicated to the technician, relative to
“yearly control and maintenance of the applian-
ce”) and regular checks of energy efficiency
in compliance with national, regional or local
provisions in force.
is ensures that the optimal safety, performance
and operation characteristics of the boiler remain
unchanged over time.
We recommend stipulating a yearly cleaning and
maintenance contract with your zone technician.
2.2 GENERAL WARNINGS
Never expose the wall-mounted boiler to direct
vapours from a cooking surface.
Use of the boiler by unskilled persons or children
is strictly prohibited.
For safety purposes, check that the concentric
air intake/flue exhaust terminal (if fitted), is
not blocked.
If temporary shutdown of the boiler is required,
proceed as follows:
a) drain the heating system if anti-freeze is not
used;
b) shut-o all electrical, water and gas supplies.
In the case of work or maintenance to structures
located in the vicinity of ducting or devices for
ue extraction and relative accessories, switch o
the appliance and on completion of operations
ensure that a qualied technician checks ecien-
cy of the ducting or other devices.
Never clean the appliance or connected parts
with easily ammable substances.
Never leave containers or ammable substances
in the same environment as the appliance.
• Important: the use of components involving
use of electrical power requires some funda-
mental rules to be observed:
- do not touch the appliance with wet or moist
parts of the body; do not touch when barefo-
ot;
- never pull electrical cables or leave the ap-
pliance exposed to atmospheric agents (rain,
sunlight, etc.);
Key:
1 - Boiler status signal display
2 - Stand-by-Domestic hot water / Remote Control - Domestic
hot water and Central Heating-Reset Selector switch
3 - Domestic hot water temperature selector switch
4 - Central heating water temperature selector switch
5 - Boiler thermo-manometer
Key of control panel display symbols
Description Symbol
Numerical characters to indicate
temperature, any error code or
optional external probe tempera-
ture correlation factor
Degrees symbol
External probe connection symbol
(Optional)
Connection to Comando Amico
RemotoV2 remote control symbol
Summer symbol (production of
DHW only)
Winter symbol (production of
DHW and room central heating)
DHW production phase symbol
active
Room central heating active phase
symbol
Chimney sweep function symbol
Anomaly presence symbol (cou-
pled to error code)
Flame presence symbol
Burner power scale symbol
2.3 CONTROL PANEL.
- the appliance power cable must not be repla-
ced by the user;
- in the event of damage to the cable, switch
off the appliance and contact exclusively
qualied sta for replacement;
- if the appliance is not to be used for a certain
period, disconnect the main power switch.

17
INSTALLERUSER
MAINTENANCE TECHNICIAN
2.4 BOILER IGNITION.
Before ignition make sure the heating system
is lled with water and that the manometer (5)
indicates a pressure of 1 - 1,2 bar;
- Open the gas cock upstream from the boiler.
- Turn the main knob (2) taking it to the Domestic
Hot Water/CARV2 Remote Control ( ) or
Domestic Hot Water and Central heating position
( ).
• Operation with CARV2 Remote Control (Op-
tional). With selector switch (2) in position
( ) and CARV2 Remote Control connec-
ted, the boiler selector switches (3) and (4) are
excluded. e ( ) symbol appears on the
display.
e boiler adjustment parameters are set from
the control panel of the CARV2 Remote Control.
• Operation without CARV2 Remote Control.
With the selector switch (2) in position
( ) the central heating adjustment
selector switch is excluded (4), the domestic
hot water temperature is regulated by selector
switch (3). e summer symbol ( )appears
on the display. With the selector switch in po-
sition ( ) the central heating adjustment
selector switch (4) is used to regulate the
temperature of radiators, while selector (3)
continues to be used for domestic hot water.
e winter symbol ( ) appears on the display.
Turn the selector switches in a clockwise di-
rection to increase the temperature and in an
anti-clockwise direction to decrease it. In the
adjustment phase, the temperature being set
appears temporarily on the display (central
heating or production of DHW).
From this moment the boiler functions automa-
tically. With no demand for heat (central heating
or domestic hot water production) the boiler
goes to “stand-by” function, equivalent to the
boiler being powered without presence of ame.
In this condition, only the boiler setting symbol
appears on the display (summer or winter and
any connection to CARV2). Every time the burner
ignites the relative ame presence symbol, the
indication of the power emitted by the burner
and the ow temperature coupled to the symbol
relative to the type of request are displayed: ( ) for
heating DHW and ( )for room central heating.
2.5 FAULT AND ANOMALY SIGNALS.
e Victrix Zeus 26 1 I boiler signals any anoma-
lies using a code shown on the boiler display (1).
In case of malfunction or anomaly, this is si-
gnalled by the ashing symbol ( ) and the
switch-on of the relative code:
Anomaly signalled Code
error
No ignition block 01
Safety thermostat block (overheating),
ue thermostat or ame anomaly 02
Flow probe anomaly 05
Reset selector switch fault 08
Calibration function active
(displayed on CARV2)09
Insucient system pressure 10
D.H.W. Cylinder probe anomaly 12
Conguration error 15
Fan anomaly 16
Parasite ame block 20
Insucient circulation 27
Loss of remote control communi-
cation 31
Low power supply voltage 37
Loss of ame signal 38
Important: the error codes 31, 37, 38 are not
shown on the CARV2 display.
N.B.: on the Comando Amico RemotoV2 remote
control (Optional), the error code corresponds to
the previous list with the letter “E” in front (E.g.
code 01 CARV2 code E01).
No ignition block. e boiler ignites automati-
cally with each demand for room central heating
or hot water production. If this does not occur
within 10 seconds, the boiler goes into no igni-
tion block (code 01). To eliminate “no ignition
block” the main selector switch (2) must be tur-
ned to the Reset position temporarily. On com-
missioning or aer extended inactivity it may be
necessary to eliminate the “no ignition block”. If
this phenomenon occurs frequently, contact a
qualied technician for assistance (e.g. Immergas
Aer-Sales Technical Assistance Service).
Overheating block. During regular operation, if
a fault causes excessive overheating internally or
an anomaly occurs in the ame control section,
an overheating block is triggered in the boiler.
To eliminate the “overheating block”, turn the
main selector switch (2) temporarily to the Reset
position. If this phenomenon occurs frequently,
contact a qualified technician for assistance
(e.g. Immergas Aer-Sales Technical Assistance
Service).
System ow probe anomaly. If the board detects
an anomaly on the system NTC delivery probe,
the boiler will not start; contact a qualified
technician for assistance (e.g. Immergas Aer-
Sales Service).
Reset selector switch fault. If, due to malfun-
ctioning, the selector switch (2) remains posi-
tioned on Reset for more than 30 seconds, the
boiler signals the anomaly. Switch the boiler o
and back on again. If the boiler signals the ano-
maly when switched back on, contact a qualied
technician (e.g. Immergas Aer-Sales Technical
Assistance Service).
Insucient system pressure. Water pressure
inside the central heating system that is sucient
to guarantee the correct functioning of the boiler
is not detected. Check on the boiler manometer
(5) that the system pressure is between1÷1.2
bar and restore the correct pressure if necessary.
Cylinder probe anomaly If the board detects
an amomaly on the cylinder probe, the boiler
cannot produce domestic hot water. A qualied
technician must be called (e.g. Immergas Aer-
Sales Technical Assistance Service).
Conguration error. If the board detects an
anomaly or incongruence on the electric wiring,
the boiler will not start. If normal conditions are
restored the boiler restarts without having to be
reset. If this anomaly persists, contact a qualied
technician for assistance (e.g. Immergas Aer-
Sales Service).
Fan anomaly. is occurs if the fan has a me-
chanical or electrical fault. Try switching o and
back on again. If this anomaly persists, contact a
qualied technician for assistance (e.g. Immergas
Aer-Sales Service).
Parasite ame block. is occurs in case of a
leak on the detection circuit or anomaly in the
ame control unit. It is possible to reset the boiler
to allow a new attempt at ignition. If the boiler
does not start contact a qualified technician
(e.g. Immergas Aer-Sales Technical Assistance
Service).
Insucient water circulation. is occurs if
there is overheating in the boiler due to insuf-
cient water circulating in the primary circuit;
the causes can be:
- low system circulation; check that no shut-o
devices are closed on the heating circuit and
that the system is free of air (deaerated);
- circulating pump blocked; free the circulating
pump.
If this phenomenon occurs frequently, contact a
qualied technician for assistance (e.g. Immergas
Aer-Sales Technical Assistance Service).
Loss of remote control communication. is
occurs in the case of an incompatible connection
to a remote control or if there is a loss of commu-
nication between the boiler and CARV2 remote
control. Try the connection procedure again by
turning the boiler o and turning the selector
switch (2) to position ( ). If the CARV2
is still not detected on re-starting the boiler will
switch to local operating mode, i.e. using the
controls on the boiler itself. If this phenomenon
occurs frequently, contact a qualied technician
for assistance (e.g. Immergas Aer-Sales Tech-
nical Assistance Service).
Low power supply voltage This occurs when
the power supply voltage is lower than the
allowed limits for the correct functioning of
the boiler. If normal conditions are restored,
the boiler re-starts without having to be reset.
If this phenomenon occurs frequently, con-
tact a qualified technician for assistance (e.g.
Immergas After-Sales Technical Assistance
Service).
Loss of flame signal. This occurs when the
boiler is ignited correctly and the burner flame
switches off unexpectedly; a new attempt at
ignition is performed and if normal conditions
are restored, the boiler does not have to be
reset. If this phenomenon occurs frequently,
contact a qualified technician for assistance
(e.g. Immergas After-Sales Technical Assi-
stance Service).
Signalling and diagnostics - Display of the
CARV2 Remote Control (Optional). During
normal boiler functioning the CARV2 Remote
Control display shows the room temperature
value; in the case of malfunctioning or anomaly,
the display of the temperature is replaced by the
relative error code present in the previous table.
Important: if the boiler is positioned in stand-
by “ ”. e remote control is not powered,
consequently if the batteries should run out all
memorised programs will be lost.

18
2-2
1
23
4
5
INSTALLERUSER
MAINTENANCE TECHNICIAN
2.6 BOILER SHUTDOWN
Disconnect the main selector switch (2) taking
it to the “ ” position and close the gas cock
upstream from the appliance.
Never leave the boiler switched on if le unused
for prolonged periods.
2.7 RESTORE HEATING SYSTEM
PRESSURE.
Periodically check the system water pressure.
e boiler manometer should read a pressure
between 1 and 1.2 bar.
If the pressure falls below 1 bar (with the circuit
cool) restore normal pressure via the valve located
at the bottom of the boiler (Fig. 2-2).
N.B.: close the valve aer the operation.
If pressure values reach around 3 bar the safety
valve may be activated.
In this case contact a professional technician
for assistance.
In the event of frequent pressure drops, contact
qualied sta for assistance to eliminate possible
system leakage.
2.8 DRAINING THE HEATING CIRCUIT.
Use the special drain cock to drain the boiler
(Fig. 2-2)
Before draining, ensure that the system lling
valve is closed.
2.9 DRAINING THE STORAGE TANK.
To drain the storage tank, use the special draining
valve (Fig. 2-2).
N.B.: before performing this operation close the
storage tank cold water inlet cock and open hot
water cock in the domestic water system in order
to allow air to enter the boiler.
2.10 ANTIFREEZE PROTECTION.
e “Victrix Zeus 26 1 I” series boiler has an anti-
freeze function that switches on automatically
when the temperature falls below 4°C (standard
protection to minimum temperature of -5°C). All
information relative to the anti-freeze protection
is stated in Par. 1.3. In order to guarantee the inte-
grity of the appliance and the domestic hot water
heating system in zones where the temperature
falls below zero, we recommend the central he-
ating system is protected using anti-freeze liquid
and installation of the Immergas Anti-freeze Kit
in the boiler. In the case of prolonged inactivity
(second case), we also recommend that:
- the electric power supply is disconnected;
- the heating circuit and boiler domestic water
circuit must be drained. In systems that are
drained frequently, filling must be carried
out with suitably treated water to eliminate
hardness that can cause lime-scale.
2.11 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.12 DECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact professional sta for the procedures and
ensure that the electrical, water and gas supply
lines are shut o and disconnected.
Lower view
1 - Cylinder draining valve
2 - Cold water inlet valve
3 - Gas cock
4 - System draining valve
5 - System lling valve

19
3-1
INSTALLERUSER
MAINTENANCE TECHNICIAN
3BOILER COMMISSIONING INITIAL CHECK
To commission the boiler:
- ensure that the declaration of conformity of
installation is supplied with the appliance;
- ensure that the type of gas used corresponds to
boiler settings;
- check connection to a 230V-50Hz power
mains, correct L-N polarity and the earthing
connection;
- make sure the central heating system is lled
with water and that the manometer indicates
a pressure of 1÷1.2 bar.
- make sure the air valve cap is open and that the
system is well deaerated;
- switch the boiler on and ensure correct ignition;
- check the ∆p gas values in domestic hot water
and heating modes;
- check the CO2in the combustion products at
maximum and minimum ow rate;
- check activation of the safety device in the event
of no gas, as well as the relative activation time;
- check activation of the main switch located
upstream from the boiler and on the boiler
control panel;
- check that the intake and/or exhaust terminals
are not blocked;
- ensure activation of all adjustment devices;
- seal the gas ow rate regulation devices (if
settings are modied);
- ensure production of domestic hot water;
- ensure sealing eciency of water circuits;
- check ventilation and/or aeration of the instal-
lation room where provided.
If any checks/inspection give negative results, do
not start the boiler.
Key:
1 - Condensate drain
1 - Stainless steel coil for cylinder
3 - Magnesium anode
4 - Stainless steel cylinder
5 - Gas valve
6 - Gas valve outlet pressure point (P3)
7 - Air/gas Venturi collector
8 - Fan
9 - Gas nozzle
10 - Detection electrode
11 - Flue safety thermostat
12 - Air intake pipe
13 - Condensation module
14 - Manual vent valve
15 - Fumes hood
16 - Air sample point
17 - ∆p gas pressure point
18 - Flue sample point
19 - Flow probe
20 - Safety thermostat
21 - Burner
22 - Igniton electrodes
23 - Condensation module cover
23 - Venturi negative sign (P2)
25 - Venturi positive sign (P2)
26 - System expansion vessel
27 - Boiler pump
28 - Adjustable by-pass
29 - System pressure switch
30 - System draining valve
31 - ree-way valve (motorised)
32 - Domestic hot water probe
33 - 3 bar safety valve
34 - System lling valve
35 - 8 bar safety valve
36 - Cold water inlet non-return valve
37 - Cylinder draining valve
G - Gas supply
SC - Condensate drain
AC - Domestic hot water outlet
AF - Domestic hot water inlet
R - System return
M - System ow
3.1 HYDRAULIC LAYOUT

20
3-2
1
3
5
16
4
12
11
10
9
6
8 8
8
10 12
11
13
6
5
11
12 12
6
11
10
11
8
12
11
11
13
12
12
6
5
6
7
2
8 8
6 5
13
13
11
10
14
11
15
10
INSTALLERUSER
MAINTENANCE TECHNICIAN
Key:
A4 - Display board
B1 - Flow probe
B2 - Domestic hot water probe
B4 - External probe (optional)
CARV2 - CARV2 Remote Control (optional)
E1 - Ignition electrodes
E2 - Detection electrode
E4 - Safety thermostat
E6 - Flue safety thermostat
G2 - Igniter
M1 - Boiler pump
M20 - Fan
3.2 WIRING DIAGRAM.
M30 - ree-way valve
S2 - Main switch functioning
S5 - Flue pressure switch
S7 - Central heating timer selector
S9 - Domestic hot water mode selector
S10 - Pump mode selector
S13 - Central heating temperature range
selector
S20 - Room thermostat (optional)
T2 - Low voltage transformer
X40 - Room thermostat jumper
Y1 - Gas valve
1 - Anti-freeze Kit
2 - 230 Vac 50Hz power supply
3 - Number of fan revs.
4 - Zones control unit
5 - Brown
6 - Blue
7 - Yellow/Green
8 - White
9 - Green
10 - Red
11 - Black
12 - Orange
13 - Grey
14 - Red (DHW)
15 - White (CH)
16 - One relay board optional kit
CARV2 Remote Control: the boiler is prepared for
the application of the Comando Amico RemotoV2
remote control (CARV2), which must be con-
nected to clamps 42 and 43 of the terminal block
(positioned inside the control panel) respecting
the polarity and eliminating jumper X40.
Room thermostat: the boiler is designed to use
the Room ermostat (S20). Connect it to clamps
40 – 41 eliminating jumper X40.
X19 used for the connection to the personal
computer during maintenance operations.
X17 used to update soware.
3.3 TROUBLESHOOTING
N.B.: maintenance interventions must be carried
out by a qualified technician (e.g. Immergas
Aer-Sales Technical Assistance Service).
- Smell of gas. Caused by leakage from gas circuit
pipelines. Check sealing eciency of gas intake
circuit.
- Repeated ignition blocks. is may be caused
by: incorrect electric power supply, check
respect of L and N polarity. No gas, check the
presence of pressure in the network and that the
gas intake pipe is open. Incorrect adjustment
of the gas valve, check the correct calibration
of the gas valve.
- Irregular combustion or noisiness. is may be
caused by: a dirty burner, incorrect combustion
parameters, intake-exhaust terminal not cor-
rectly installed. Clean the above components
and ensure correct installation of the terminal,
check correct setting of the gas valve (O-Set
setting) and correct percentage of CO2in
combustion products.
- Frequent activation of the temperature over-
load thermostat. It can depend on the lack of
water in the boiler, little water circulation in
the system or blocked pump. Check on the
manometer that the system pressure is within
established limits. Check that the radiator val-
ves are not closed and also the functionality of
the pump.
- Siphon blocked. is may be caused by dirt or
combustion products deposited inside. Check,
by means of the condensate drain cap, that
there are no residues of material blocking the
ow of condensate.
- Heat exchanger blocked. is may be caused
by the siphon being blocked. Check, by means
of the condensate drain cap, that there are no
residues of material blocking the ow of con-
densate.
- Noise due to air in the system. Check opening
of the hood of the special air vent valve (Fig.
1-20). Make sure the system pressure and ex-
pansion vessel factory-set pressure values are
within the set limits; e factory-set pressure
values of the expansion vessel must be 1.0 bar,
the value of system pressure must be between
1 and 1.2 bar.
- Noise due to air inside the condensation
module. Use the manual vent valve (Part. 20
Fig. 1-20) to eliminate any air present in the
condensation module. When the operation has
been performed, close the manual vent valve.
- Domestic hot water probe broken. e boiler
does not have to be emptied in order to replace
the domestic water probe as the probe is not
in direct contact with the domestic hot water
present in the boiler.