Immergas Victrix Zeus 25 Operating instructions

VICTRIX ZEUS
25
Instructions and
recommendations
Installer
User
Maintenance technician
IE
*1.042022ENG*

33
2.7 Boiler shutdown................................................................. 40
2.8 Restore central heating system pressure......................... 40
2.9 Draining the system. ......................................................... 40
2.10 Draining the domestic hot water circuit......................... 40
2.11 Storage tank draining........................................................ 41
2.12 Antifreeze protection. ....................................................... 41
2.13 Cleaning the case. .............................................................. 41
2.14 Decommissioning.............................................................. 41
2.15 Gas system not used for periods over 12 months.......... 41
3 Instructions for maintenance and initial check............. 42
3.1 General warnings............................................................... 42
3.2 Initial check. ....................................................................... 42
3.3 Yearly appliance check and maintenance. ...................... 43
3.4 Hydraulic Diagram............................................................ 44
3.5 Wiring diagram.................................................................. 45
3.6 Removable memory .......................................................... 46
3.7 Troubleshooting................................................................. 46
3.8 Converting the boiler to other types of gas.................... 47
3.9 Checks following conversion to another type of gas..... 47
3.10 Calibration type involving the replacement of a
component.......................................................................... 48
3.11 Complete calibration function......................................... 48
3.12 CO2 adjustment................................................................. 49
3.13 Fast calibration................................................................... 49
3.14 Flue test. .............................................................................. 50
3.15 Programming the P.C.B. ................................................... 50
3.16 "Chimney sweep” function............................................... 54
3.17 Pump anti-block function. ............................................... 54
3.18 ree-way anti-block system............................................ 54
3.19 Radiators antifreeze function........................................... 54
3.20 Periodical P.C.B. self-check. ............................................. 54
3.21 Automatic vent function................................................... 54
3.22 Casing removal................................................................... 55
4 Technical data..................................................................... 57
4.1 Variable heat output. ......................................................... 57
4.2 Combustion parameters. .................................................. 57
4.3 Technical data table........................................................... 58
4.4 Key for Data nameplate..................................................... 59
4.5 Technical parameters for combination boilers
(in compliance with Regulation 813/2013).................... 60
4.6 Product che
(in compliance with Regulation 811/2013).................... 61
4.7 Parameters for lling in the package che. .................... 62
Dear Customer,................................................................................. 3
General recommendations.............................................................. 3
Safety symbols used.......................................................................... 5
Personal protective equipment....................................................... 5
1 Boiler installation................................................................. 6
1.1 Installation recommendations. .......................................... 6
1.2 Main dimensions. ................................................................ 9
1.3 Minimum installation distances........................................ 9
1.4 Antifreeze protection. ....................................................... 10
1.5 Boiler connection unit. ..................................................... 11
1.6 Gas connection. ................................................................. 11
1.7 Hydraulic connection........................................................ 12
1.8 Electrical connection......................................................... 13
1.9 Remote controls and room chrono-thermostats
(Optional). .......................................................................... 13
1.10 External temperature probe (Optional).......................... 14
1.11 Immergas ue systems. ..................................................... 15
1.12 Tables of resistance factors and equivalent lengths of
“green range” ue system components. .......................... 16
1.13 Outdoor installation in partially protected area............ 18
1.14 Concentric horizontal kit installation............................. 20
1.15 Concentric vertical Kit installation. ................................ 21
1.16 Separator kit installation................................................... 22
1.17 Adaptor C9 kit installation............................................... 24
1.18 Ducting of ues or technical slots. .................................. 26
1.19 Conguration type B, open chamber and fan assisted for
indoors. ............................................................................... 26
1.20 Flue exhaust to ue/chimney............................................ 27
1.21 Flues, chimneys and chimney caps. ................................ 27
1.22 Water treatment system lling......................................... 28
1.23 System lling. ..................................................................... 28
1.24 Filling the condensate drain trap..................................... 28
1.25 Gas system start-up. .......................................................... 28
1.26 Boiler start-up (Ignition).................................................. 29
1.27 Circulation pump............................................................... 30
1.28 Kits available on request. .................................................. 31
1.29 Boiler components............................................................. 32
2 Instructions for use and maintenance............................. 33
2.1 General warnings............................................................... 33
2.2 Cleaning and maintenance............................................... 35
2.3 Control panel...................................................................... 35
2.4 Using the boiler. ................................................................. 36
2.5 Fault and anomaly signals. ............................................... 37
2.6 Information Menu. ............................................................ 40
INDEX

44
GENERAL RECOMMENDATIONS
is book contains important information for the:
Installer (section 1);
User (section 2);
Maintenance Technician (section 3).
•e user must carefully read the instructions in the specic section (section 2).
•e user must limit operations on the appliance only to those explicitly allowed in the specic section.
•e appliance must be installed by qualied and professionally trained personnel.
•e instruction booklet is an integral and essential part of the product and must be given to the new user 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.
•In compliance with the 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, meaning sta with specic technical skills in the plant sector,
as provided for by Law.
•Improper installation or assembly of the Immergas device and/or components, accessories, kits and devices can cause unexpected
problems for people, animals and objects. Read the instructions provided with the product carefully to ensure proper installation.
•is instructions manual provides technical information for installing Immergas products. As for the other issues related to the
installation of products (e.g. safety at the workplace, environmental protection, accident prevention), it is necessary to comply with
the provisions of the standards in force and the principles of good practice.
•All Immergas products are protected with suitable transport packaging.
•e material must be stored in a dry place protected from the weather.
•Damaged products must not be installed.
•Maintenance must be carried out by skilled technical sta. For example, the Authorised Immergas Service Centre that represents a
guarantee of qualications and professionalism.
•e device 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 booklet (or however supplied by the manufacturer), the manufacturer is excluded from any contractual
and extra-contractual liability for any damages and the device warranty is invalidated.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manu-
facturing and aer-sales assistance processes comply with the requirements of standard UNI EN ISO 9001:2015.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the
appliance model and the language of the country.
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its
technical and commercial documents without forewarning.
Dear Customer,
Our compliments for having chosen a top-quality Immergas product, able to ensure 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 tips on the correct use of the device, compliance of which will
conrm your satisfaction with the Immergas product.
For assistance and routine maintenance, contact Authorised Immergas Service Centres: they have original spare parts and are specically
trained directly by the manufacturer.

55
e user must not dispose of the appliance at the end of its service life as municipal waste, but send it to appropri-
ate collection centres.
SAFETY FOOTWEAR
SAFETY GOGGLES
PERSONAL PROTECTIVE EQUIPMENT.
SAFETY GLOVES
INFORMATION
Indicates useful tips or additional information.
RECOVERABLE OR RECYCLABLE MATERIAL
READ AND UNDERSTAND THE INSTRUCTIONS
Read and understand the appliance’s instructions before performing any operation, carefully following the indications
provided.
EARTH TERMINAL CONNECTION
e symbol identies the appliance’s earth terminal connection point.
SHARP SURFACES
e symbol indicates the appliance’s components or parts that can cause cuts if touched.
HOT SURFACES
e symbol indicates the appliance’s very hot components that can cause burns.
MOVING PARTS
e symbol indicates the appliance’s moving components that can cause hazards.
ELECTRICAL HAZARD
Strictly follow all of the indications next to the pictogram. e symbol indicates the appliance’s electrical components
or, in this manual, identies actions that can cause an electrical hazard.
GENERIC HAZARD
Strictly follow all of the indications next to the pictogram. Failure to follow the indications can generate hazard situa-
tions resulting in possible harm to the health of the operator and user in general.
SAFETY SYMBOLS USED.

6
1
SI NO
6
INSTALLER
USER
MAINTENANCE TECHNICIAN
NO
YES
ATTENTION:
Installation of the Victrix Zeus 25 boiler
when powered by LPG must comply with
the rules regarding gases with a greater density
than air (remember, as an example, that it is
prohibited to install plants powered with the
above-mentioned gas in rooms where the oor
is at a lower quota than the country level).
ATTENTION:
check the environmental operating
conditions of all parts relevant to in-
stallation, referring to the values shown in the
technical data table in this booklet.
ATTENTION:
it is not permitted to install boilers that
are removed and decommissioned from
other systems. e manufacturer declines all
liability for damages caused by boilers removed
from other systems or for any non-conformities
of such equipment.
e Victrix Zeus 25 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 as to allow for (always in safe,
ecient and comfortable conditions):
- installation (according to the provisions of technical legislation
and technical regulations);
- maintenance operations (including scheduled, periodic, rou-
tine and special maintenance);
- removal (to outdoors in the place for loading and transporting
the appliances and components) as well as the eventual replace-
ment of those 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).
By varying the type of installation the classication 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 the sealed chamber boiler for intake of
air and expulsion of ue gas.
Only professionally enabled companies are authorised to install
Immergas gas appliances.
Installation must be carried out according to regulation stand-
ards, current legislation and in compliance with local technical
regulations and the required technical procedures.
ATTENTION:
operators who install and service the
appliance must wear the personal pro-
tective equipment required by applica-
ble law.
1BOILER INSTALLATION.
1.1 INSTALLATION RECOMMENDATIONS.
ATTENTION:
if installing a kit or servicing the ap-
pliance, always empty the system’s
domestic hot water circuit rst so as not to
compromise the appliance’s electrical safety
(see Par. 2.9 and 2.10).

77
INSTALLER
USER
MAINTENANCE TECHNICIAN
N.B.: wall mounting of the boiler must guarantee
stable and ecient support for the boiler. e plugs
(standard supply) are only to be used to x the boiler
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.
-Installation is prohibited on the verti-
cal projection of the cooking surface.
-Installation is forbidden in places/
rooms that constitute public areas of apart-
ment buildings, internal stairways or other
escape routes (e.g. oor landings, entrance
halls, etc.).
-Installation is also forbidden in places/rooms
that constitute public areas of apartment
buildings such as cellars, entrance halls, at-
tics, los, etc., unless otherwise provided for
by local regulations in force.
-ese boilers are not suitable for installation
on walls made of combustible material.
Installation Standards:
-this boiler can be installed outdoors in
a partially protected area. A partially
protected area is one in which the boiler is
not exposed to the direct action of the weather
(rain, snow, hail, etc.).
is type of installation is only possible when
permitted by the laws in force in the appliance's
country of destination.
-Installation of gas appliances, ue exhaust
pipes and combustion air intake pipes is for-
bidden in places with a re risk (for example:
garages, closed parking stalls), and in poten-
tially dangerous places.
It is just as important that the intake grids and exhaust
terminals are not obstructed.
It is recommended to check that no ue gas recircula-
tion is found in the air sample points (0.5%maximum
permitted CO2).
Keep all ammable objects away from the appliance
(paper, rags, plastic, polystyrene, etc.).
e minimum distance for exhaust pipes from am-
mable materials must be at least 25 cm.
Do not place household appliances underneath the boiler as they
could be damaged if the safety valve intervenes, if the drain trap
is blocked, or if there are leaks from the hydraulic connections;
otherwise, the manufacturer cannot be held responsible for any
damage caused to the household appliances.
For the aforementioned reasons, we recommend not placing
furnishings, furniture, etc. under the boiler.
In the event of malfunctions, faults or incorrect operation,
turn the appliance o immediately and contact an authorised
company (e.g. the Immergas Technical Assistance centre, which
has specically trained sta and original spare parts). Do not
attempt to modify or repair the appliance alone.
Any modication to the appliance that is not explicitly indicated
in this section of the booklet is forbidden.
Before installing the appliance, ensure that it is de-
livered in perfect condition; if in doubt, contact the
supplier immediately. Packing materials (staples, nails,
plastic bags, polystyrene foam, etc.) constitute a hazard
and must be kept out of the reach of children.
If the appliance is installed inside or between cabinets,
ensure sucient space for normal servicing; therefore it is
advisable to leave clearance of at least 3 cm between the boiler
casing and the vertical sides of the cabinet. Leave adequate
space above the boiler for possible water and ue removal
connections (Fig. 3).

88
INSTALLER
USER
MAINTENANCE TECHNICIAN
ATTENTION:
Failure to comply with the above implies
personal responsibility and invalidates
the warranty.
ATTENTION:
-Type B open chamber boilers must
not be installed in places where com-
mercial, artisan or industrial activities take
place, which use products that may develop
volatile vapours or substances (e.g. acid va-
pours, glues, paints, solvents, combustibles,
etc.), as well as dusts (e.g. dust deriving from
the working of wood, coal nes, cement, etc.),
which may be damaging for the components
of the appliance and jeopardise functioning.
-Unless otherwise provided for by local regula-
tions in force, congurations B23 and B53: the
boilers must not be installed in bedrooms,
bathrooms or bedsits. ey must neither be
installed in rooms containing solid fuel heat
generators nor in rooms communicating with
said rooms.
-e installation rooms must be permanently
ventilated, in compliance with the local regu-
lations in force (at least 6cm2for every kW
of installed heat input, except in the event of
any increases needed for electro-mechanical
vacuum cleaners or other devices that could
put the installation room under vacuum).
- Installation of appliances in B23 and B53 con-
guration is recommended in non-residential
premises and which are permanently ventilated.
Filling the condensate drain trap.
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 trap is lled with
condensate to the correct level preventing the
passage of combustion products.
Risk of material damage aer using sprays and liquids
to search for leaks
Leak sprays and liquids clog the reference hole P.Ref
(Part. 5 Fig. 37) of the gas valve, damaging it irreparably.
During installation and maintenance, do not use spray
or liquids in the upper area of the gas valve (side referring to the
electric connections)
Risk of damage due to corrosion caused by unsuitable
combustion air and environment.
Spray, solvents, chlorine-based detergents, paints, glue,
ammonium compounds, powders and similar cause
product and ue duct corrosion.
- Check that combustion air power supply is free from
chlorine, sulphur, powders, etc.
- Make sure that no chemical substances are stored in the place
of installation.
- If you want to install the product in beauty salons, paint
workshops, carpenter’s shop, cleaning companies or
similar, choose a separate installation area that ensures
combustion air supply that is free from chemical substances.
- Make sure the combustion air is not fed from chimneys that were
used with gas boilers or other heating devices. In fact, these may
cause an accumulation of soot in the chimney.
ese boilers are used to heat water to below boiling
temperature in atmospheric pressure.
ey must be connected to a central heating system
and domestic hot water circuit suited to their perfor-
mance and capacity.

99
INSTALLER
USER
MAINTENANCE TECHNICIAN
Height
(mm)
Width
(mm)
Depth
(mm)
900 580 410
TEMPLATE CONNECTIONS
GAS
DOMESTIC
HOT
WATER
SYSTEM
GAC AF R M
1/2” 1/2” 1/2” 3/4” 3/4”
Key:
V - Electrical connection
G - Gas supply
SC - Condensate drain (minimum
internal diameter Ø 13 mm)
R - System return
M - System ow
RC - Domestic hot water pump
(optional)
AC - Domestic hot water outlet
AF - Domestic hot water inlet
Key:
A - 450 mm
B - 350 mm
C - 30 mm
D - 30 mm
E - 350 mm
1.3 MINIMUM INSTALLATION DISTANCES.
3
1.2 MAIN DIMENSIONS.
2

1010
INSTALLER
USER
MAINTENANCE TECHNICIAN
1.4 ANTIFREEZE PROTECTION.
Minimum temperature -15°C. If the boiler is installed
in a place where the temperature drops below 0°C, the
appliance can freeze.
To prevent the risk of freezing follow the instructions
below:
- protect the central heating circuit from freezing by inserting a
good-quality antifreeze liquid into this circuit, which is special-
ly suited for central heating systems and which is manufacturer
guaranteed not to cause damage to the heat exchanger or other
components of the boiler. e antifreeze liquid must not be
harmful to one's health. e instructions of the manufacturer
of this liquid must be followed scrupulously regarding the per-
centage necessary with respect to the minimum temperature
at which the system must be kept.
N.B.: the excessive use of glycol could jeopardise the proper
functioning of the appliance.
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 resist ethylene and propylene glycol based antifreeze
liquids (if the mixtures are prepared perfectly).
For life and possible disposal, follow the supplier's instructions.
- Protect the domestic hot water circuit against freezing by using
an accessory that is supplied on request (antifreeze kit) com-
prising two electric heating elements, the relevant wiring and a
control thermostat (carefully read the installation instructions
contained in the accessory kit pack).
In these conditions the boiler is protected against freezing to
temperature of -15°C.
Boiler antifreeze protection (both -5°C and -15°C) is thus en-
sured only if:
- the boiler is correctly connected to gas and electricity power
supply circuits;
- the boiler is powered constantly;
- the boiler is not in “o ” mode;
- the boiler is not in anomaly conditions (Par. 2.5);
- the essential components of the boiler and/or antifreeze kit are
not faulty.
e warranty does not cover damage due to interruption of the
electrical power supply and failure to comply with that stated
on the previous page.
Note: if the boiler is installed in places where the temperature
falls below 0°C the domestic hot water and central heating
attachment pipes and the condensate drain pipe must be
insulated.
Note: the antifreeze systems described in this chapter are
only to protect the boiler. e presence of these functions and
devices does not exclude the possibility of parts of the system
or domestic hot water circuit outside the boiler from freezing.

11
R
AF
RC
SC
AC
M
G
V
CAVO
ALIMENTAZIONE
11
INSTALLER
USER
MAINTENANCE TECHNICIAN
POWER
CABLE
5
According to local regulations in force,
make sure that a gas cock is installed
upstream of each connection between
the appliance and the gas system. is cock,
if supplied by the appliance’s manufacturer,
can be directly connected to the appliance
(i.e. downstream from the pipes connecting
the system to the appliance), according to the
manufacturer’s instructions.
The Immergas connection unit, which is a
standard supply, also includes the gas cock,
whose installation instructions are provided
in the kit.
In any case, make sure the gas cock is con-
nected properly.
e gas supply pipe must be suitably dimensioned according to
current regulations in order to guarantee correct gas ow rate to
the burner even in conditions of maximum generator output and
to guarantee appliance eciency (technical specications). e
coupling system must conform to standards in force (EN 1775).
ATTENTION:
the appliance is designed to operate with
fuel gas free from impurities; otherwise
it is advisable to t special lters upstream of
the appliance to restore the purity of the fuel.
1.5 BOILER CONNECTION UNIT.
e connection unit consisting of all the necessary parts to per-
form the hydraulic and gas system connections of the appliance
comes as a standard supply. Perform the connections respecting
the layout of (Fig. 4)based on the type of installation to be made.
1.6GAS CONNECTION.
Our boilers are designed to operate with methane gas (G20) and
L.P.G. Supply pipes must be the same as or larger than the 3/4”G
boiler tting.
ATTENTION:
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 nameplate). If dierent, the boiler
must be converted for operation with the other
type of gas (see converting appliance for other
gas types). It is also important to check the dy-
namic pressure of the mains (methane or LPG)
used to supply the boiler, which must comply
with EN 437and its attachment, as insucient
levels may reduce generator output and cause
discomfort to the user.
5
e kit includes:
N°2 - 3/4” telescopic ttings (R-M)
N°1 - 1/2” telescopic tting (AC)
N°1 - 1/2” gas cock (G)
N°1 - 1/2” ball valve (AF)
N°2 - Ø18 copper bends
N°2 - Ø14 copper bends
N°1 - Pipe Ø 18
N°2 - adjustable expansion bolts
N°2 - boiler support hooks
Gaskets and seal O-Ring
Key:
V - Electrical connection 230V-50Hz
G - 1/2” gas supply
SC - Condensate draining
R - 3/4” system return
M - 3/4” System ow
RC - 1/2” domestic hot water recirculation
AC - 1/2” domestic hot water outlet
AF - 1/2” domestic hot water inlet
4

1212
INSTALLER
USER
MAINTENANCE TECHNICIAN
ATTENTION:
the manufacturer declines all liability
in the event of damage caused by the
installation of an automatic lling system.
In order to meet the system requirements established by EN 1717
in terms of 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. We also recommend using a
category 1, 2 or 3 heat transfer uid (ex: water +glycol) in the boil-
er's primary circuit (C.H. circuit), as dened in standard EN 1717.
To preserve the duration of appliance eciency fea-
tures, in the presence of water whose features can
lead to the deposit of lime scale, installation of the
“polyphosphate dispenser” kit is recommended .
3 bar safety valve.
Safety valve (Part. 5 Fig. 32) discharge must always be conveyed
through a draining funnel. Consequently, in the event of valve
intervention, the discharged liquid will end up in the sewer system.
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 Øof at least 13 mm. e system
connecting the appliance to the drainage system must be carried
out in such a way as to prevent occlusion and freezing of the liquid
contained in it. Before appliance ignition, ensure that the con-
densate can be correctly removed. Aer rst ignition, check that
the drain trap is lled with condensate (Para. 1.24). Also, comply
with national and local regulations on discharging waste waters.
In the event condensate is not discharged into the wastewater
drainage system, a condensate neutraliser must be installed to
ensure compliance with the parameters established by the legisla-
tion in force.
Storage tanks (in case of supply from LPG depot).
- New LPG storage tanks may contain residual inert gases (nitro-
gen) 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 caloric value of the
mixture delivered to the appliance, with subsequent change in
its performance.
1.7HYDRAULIC CONNECTION.
In order not to void the condensation module war-
ranty before making the boiler connections, carefully
clean the heating system (pipes, radiators, etc.) with
special pickling or descaling products to remove
any deposits that could compromise correct boiler
operation.
A treatment of the heating and water system water is required,
in compliance with the technical standards in force, in order to
protect the system and the appliance from deposits (e.g. scale),
slurry or other hazardous deposits. In order not to void the heat
exchanger warranty, you are required to comply with what has
been prescribed in (Par. 1.22.
Water connections must be made in a rational way using the
couplings on the boiler template.

13
76
2
b
a
2
1
1
a
3
c
d
13
INSTALLER
USER
MAINTENANCE TECHNICIAN
To protect from possible dispersions of DC voltage, it is necessary
to provide a type A dierential safety device.
If the power supply cable is damaged, it must be replaced by a
special cable or assembly, which are only available from the manu-
facturer or its Aer-sales Service. It is recommended to contact
a qualied company (e.g. the Immergas Authorised Aer-Sales
Technical Assistance Service) for replacement to avoid a hazard.
e power cable must be laid as shown (Fig. 5).
If the network fuse on the connection terminal block needs re-
placing, this must also be done by qualied personnel: use a 3.15
A fast fuse.
For the main power supply to the appliance, never use adapters,
multiple sockets or extension leads.
Installation with system operating at direct low temperature.
e boiler can directly supply a low-temperature system by setting
the ow temperature adjustment range “t0” and “t1” (Par. 3.15). In
this situation it is good practice to insert a relevant safety kit (op-
tional) made up from a thermostat (with adjustable temperature).
Execute connection to terminal boards 14 and 15, eliminating
jumper X70 (Fig. 36). e thermostat must be positioned on the
system ow pipe at a distance of at least 2 metres from the boiler.
1.9 REMOTE CONTROLS AND ROOM CHRONO
THERMOSTATS OPTIONAL.
The boiler is prepared for the application of room chrono-
thermostats or remote controls, which are available as optional
kits (Fig. 7).
All Immergas chrono-thermostats are connected with 2 wires
only. Carefully read the user and assembly instructions contained
in the accessory kit.
1.8ELECTRICAL CONNECTION.
e appliance has an IPX5D protection degree; electrical safety of
the appliance is achieved only when it is connected properly to an
ecient earthing system, as specied by current safety standards.
ATTENTION:
the manufacturer declines any respon-
sibility for damage or physical injury
caused by failure to connect the boiler
to an ecient earthing system or failure
to comply with the IEC reference standards.
•Open the control panel connections compartment (Fig. 6).
To carry out electrical connections, all you have to do is open
the connections compartment as follows.
- Remove the front panel (Fig. 49).
- Remove the cover (Ref. b Fig. 6).
1) Loosen the two screws (a).
2) Press the two hooks on the cover (b).
3) Remove the cover (b) from the control panel (c).
- At this point, it is possible to access the terminal board (d).
Also ensure that the electrical installation corresponds to maxi-
mum absorbed power specications as shown on the boiler data
nameplate. Boilers are supplied complete with an “X” type power
cable without plug.
ATTENTION:
e power supply cable must be con-
nected to a 230V ±10%/ 50Hz mains
supply respecting L-N polarity and
earth connection; this network must
also have a multi-pole circuit breaker
with class III overvoltage category in
compliance with installation regulations.

14
9
45
31
58
8
14
INSTALLER
USER
MAINTENANCE TECHNICIAN
MIN
MAX.
TM (°C)
Position of the central heating user
adjustment
EXTERNAL PROBE
Correction law of the ow temperature depending on the external
temperature and user adjustment of the central heating temperature.
Comando Amico Remoto Remote Control V2 or On/Off
chrono-thermostat electrical connections (Optional). e oper-
ations described below must be performed aer having removed
the voltage from the appliance. Any thermostat or On/O en-
vironment chrono-thermostat must be connected to clamps 40
and 41 eliminating jumper X40 (Fig. 36). Make sure that the On/
O thermostat contact is of the “clean” type, i.e. independent of
the mains voltage, otherwise the P.C.B. would be damaged. Any
Comando Amico Remoto remote control V2 must be connected
to terminals 44 and 41, eliminating jumper X40 on the P.C.B.
(Fig. 36).
If the Comando Amico Remoto remote control V2 or
any other On/O chrono-thermostat is used arrange
two separate lines in compliance with current regu-
lations 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.
1.10 EXTERNAL TEMPERATURE PROBE OPTIONAL.
e boiler is designed for the application of the external tempera-
ture probe (Fig. 8), which is available as an optional kit. Refer to
the relative instruction sheet for positioning of the external probe.
e probe can be connected directly to the boiler electrical system
and allows the max. system ow temperature to be automatically
decreased when the external temperature increases, in order to
adjust the heat supplied to the system according to the change in
external temperature. e external probe always operates when
connected, regardless of the presence or type of room chrono-
thermostat used and can work in combination with Immergas
chrono-thermostats. e correlation between system ow tem-
perature and external temperature is determined by the position of
the central heating selector switch on the boiler control panel (or
on the CARV2 control panel if connected to the boiler) according to
the curves shown in the diagram (Fig. 9). e electric connection
of the external probe must be made on clamps 38 and 39 on the
terminal board in the boiler control panel (Fig. 36).
ATTENTION:
disconnect power to the appliance be-
fore any electrical connection.
•On/O Immergas digital chrono-thermostat.
e chrono-thermostat allows:
- set two room temperature value: one for day (comfort temper-
ature) and one for night (reduced temperature);
- set a weekly programme with four daily switch on and switch
o times;
- selecting the required function mode from the various possible
alternatives:
•manual mode (with adjustable temperature).
•automatic mode (with set programme).
•forced automatic mode (momentarily changing the temperature
of the automatic programme).
e chrono-thermostat is powered by two 1.5V LR 6 type alkaline
batteries;
•Comando Amico Remoto Remote Control Device V2 (CARV2)
with climate chrono-thermostat function.
In addition to the functions described in the previous point,
the CARV2 panel enables the user to control all the important
information regarding operation of the appliance and the heating
system with the opportunity to easily intervene on the previously
set parameters, without having to go to where the appliance is
installed. e panel is provided with self-diagnosis to display
any boiler functioning anomalies. e climate chrono-thermo-
stat 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.
If the system is divided 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.

15
10
(A)
(B)
15
INSTALLER
USER
MAINTENANCE TECHNICIAN
•Positioning the gaskets (black)for “green range” ue systems.
Position the gasket correctly (for bends and extensions) (Fig. 10):
- gasket (A) with notches, to use for bends;
- gasket (B) without notches, to use for extensions.
N.B.: if necessary, to ease the push-tting, spread the elements
with commonly-used talc.
•Extension pipes and concentric elbows push-ttings.
To install push-tting extensions with other elements of the ue
extraction elements assembly, proceed as follows: Install the con-
centric 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.
N.B.: if the exhaust terminal and/or extension concentric pipe
needs shortening, consider that the internal duct must always
protrude by 5 mm with respect to the external duct.
N.B.: for safety purposes, do not obstruct the boiler intake/
exhaust terminal, even temporarily.
e various parts of the ue system must be checked
to ensure that they have been laid in such a way as
to prevent the coupled parts from detaching, in par-
ticular, the ue exhaust duct in the Ø80 separator kit
conguration. Should the aforesaid condition not be
adequately guaranteed, it will be necessary to use the
special clamp ring nut clip kit.
N.B.: when installing horizontal pipes, a minimum inclination
of 3%towards the boiler must be maintained, and a section clip
with pin must be installed every 3 metres.
1.11 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 exclusive-
ly with an original Immergas “Green
Range” inspectionable air intake system and
ue gas extraction system made of plastic,
with the exception of the C6conguration, as
required by the regulations in force and by the
product’s approval.
is ue can be identied by an identication
mark and special distinctive marking bearing
the note "only for condensation boilers".
e plastic pipes cannot be installed outdoors,
for tracts longer than 40 cm, without suitable
protection from UV rays and other atmos-
pheric agents.
•Resistance factors and equivalent lengths.
Each ue component has a Resistance Factor based on experi-
mental 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 dimensionless size. It
is however, conditioned by the temperature of the uids that pass
through the pipe and therefore, varies according to applications
for air intake or ue exhaust. Each single component has a resist-
ance 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 Resist-
ance 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. is information allows calcula-
tions to be made to verify the possibility of setting up various
ue congurations.
Note: to dimension the ue ducting using commercial compo-
nents, refer to the table of combustion parameters (Paragraph 4.2).

1616
INSTALLER
USER
MAINTENANCE TECHNICIAN
TYPE OF DUCT
Resistance
Factor
(R)
Length
in m of concentric pipe
Ø80/125
Concentric pipe 80/125 Øm 1 2.1 1
90° concentric bend Ø80/125 3.0 1.4
Concentric bend 45° Ø80/125 2.1 1
Terminal complete with concentric horizontal intake-exhaust
Ø80/125 2.8 1.3
Terminal complete with concentric vertical intake-exhaust
Ø80/125 3.6 1.7
90° concentric bend Ø80/125 with inspection 3.4 1.6
Stub pipe with inspection Ø80/125 3.4 1.6
1.12 TABLES OF RESISTANCE FACTORS AND EQUIVALENT LENGTHS OF “GREEN RANGE” FLUE SYSTEM
COMPONENTS.

1717
INSTALLER
USER
MAINTENANCE TECHNICIAN
TYPE OF DUCT
Resistance
Factor
(R)
Length
in m of concen-
tric pipe Ø60/100
Length
in metres
of a Ø80 pipe
Length
in metres
of a Ø60 pipe
Length
in m of concen-
tric pipe Ø80/125
Concentric pipe Ø60/100
m 1
Intake and
Exhaust 6.4 m 1 Intake m 7.3 Exhaust m 1.9 m 3.0
Exhaust m 5.3
90° concentric bend Ø60/100 Intake and
Exhaust 8.2 m 1.3 Intake m 9.4 Exhaust m 2.5 m 3.9
Exhaust m 6.8
Concentric bend 45° 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
concentric horizontal intake-
exhaust Ø60/100
Intake and
Exhaust 15 m 2.3
Intake m 17.2
Exhaust m 4.5 m 7.1
Exhaust m 12.5
Concentric horizontal intake-
exhaust terminal Ø60/100
Intake and
Exhaust 10 m 1.5 Intake m 11.5 Exhaust m 3.0 4.7 m
Exhaust m 8.3
Terminal complete with
concentric vertical intake-
exhaust Ø60/100
Intake and
Exhaust 16.3 m 2.5
Intake m 18.7
Exhaust m 4.9 m 7.7
Exhaust m 13.6
Concentric vertical intake-
exhaust terminal Ø60/100
Intake and
Exhaust 9 1.4 m
Intake m 10.3
Exhaust m 2.7 m 4.3
Exhaust m 7.5
Pipe Ø80 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 intake terminal Ø
80 m 1 Intake 3 m 0.5 Intake m 3.4 Exhaust m 0.9 1.4 m
Intake terminal Ø80
Exhaust terminal Ø80
Intake 2.2 m 0.35 Intake m 2.5 Exhaust m 0.6
m 1
m 0.9
Exhaust 1.9 m 0.3 Exhaust m 1.6
Bend 90° Ø80 Intake 1.9 m 0.3 Intake m 2.2 Exhaust m 0.8
m 0.9
m 1.2
Exhaust 2.6 m 0.4 Exhaust m 2.1
Bend 45° Ø80 Intake 1.2 m 0.2 Intake m 1.4 Exhaust m 0.5
m 0.5
0.7
Exhaust 1.6 m 0.25 Exhaust m 1.3
Pipe Ø60 m 1 for ducting Exhaust 3.3 m 0.5 Intake 3.8 Exhaust m 1.0 m 1.5
Exhaust 2.7
Bend 90° Ø60 for ducting Exhaust 3.5 m 0.55 Intake 4.0 Exhaust m 1.1 m 1.6
Exhaust 2.9
Reduction Ø80/60 Intake and
Exhaust 2.6 m 0.4 Intake m 3.0 Exhaust m 0.8m 1.2
Exhaust m 2.1
Terminal complete with
exhaust
vertical Ø60 for ducting
Exhaust 12.2 m 1.9
Intake m 14
Exhaust m 3.7m 5.8
Exhaust m 10.1

1818
INSTALLER
USER
MAINTENANCE TECHNICIAN
Max. length of exhaust duct.
e ue pipe (both vertical or horizontal) can be extended to a
max. length of 30 linear metres.
Coupling of extension pipes.
To install push-tting extensions with other elements of the ue,
proceed as follows: Couple the pipe or elbow with the male side
(smooth) in the female side (with lip seal) to the end stop on the
previously installed element. is will ensure sealing eciency
of the coupling.
Conguration without cover kit in a partially protected location
(type C boiler).
By leaving the side plugs tted it is possible to install the appliance
externally without the cover kit. Installation takes place using the
Ø60/100 and Ø80/125 concentric intake/ exhaust kits. Refer to
the paragraph on indoor installation. In this conguration the up-
per cover kit guarantees additional protection for the boiler. It is
recommended but not compulsory. e Ø80/80 separating device
cannot be used in this conguration (coupled with the cover kit).
1.13 OUTDOOR INSTALLATION IN PARTIALLY
PROTECTED AREA.
A partially protected location is a place where the
appliance is not exposed to the direct eects of the
weather (rain, snow, hail, etc.).
If the appliance is installed in a place where the am-
bient temperature drops below 0°C, use the optional
antifreeze kit, checking the ambient operating tem-
perature range shown in the technical data table in
this instruction booklet.
Configuration type B, open chamber and fan assisted.
(B23 or B53).
Using the special coverage kit one can achieve direct air intake
(Fig. 11) and ue gas exhaust in a single chimney or directly
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 B.
With this conguration:
- air intake takes place directly from the environment in which
the appliance is installed (external);
- the ue gas exhaust must be connected to its own single chimney
(B23) or ducted directly outside via a vertical terminal for direct
exhaust (B53) or via an Immergas ducting system (B53).
e technical regulations in force must be respected.
Kit assembly (Fig. 12).
By leaving the side plugs tted it is possible to install the appliance
externally without the cover kit. Installation takes place using the
Ø60/100 and Ø80/125 concentric intake/ exhaust kits. Refer to
the paragraph on indoor installation. In this conguration the up-
per cover kit guarantees additional protection for the boiler. It is
recommended but not compulsory. e Ø80/80 separating device
cannot be used in this conguration (coupled with the cover kit).

19
11 12
13
19
INSTALLER
USER
MAINTENANCE TECHNICIAN
e cover kit includes:
N° 1 ermoformed cover
N°1 Gasket clamping plate
N°1 Gasket
N°1 Gasket tightening clip
N°1 Intake hole covering plate
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

20
C13
1
2
3
45
6
16
C13
15
C13
5
4
3
1
2
14
20
INSTALLER
USER
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 wall sealing plate (4)
N° 1 - External wall sealing plate (5)
e adaptor kit includes:
N° 1 - Gasket (1)
N° 1 - Adapter Ø 80/125 (2)
e Kit Ø 80/125 includes:
N° 1 - Concentric bend Ø 80/125 at 87° (3)
N° 1 - Concentric intake-exhaust terminal 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
•Extensions for Ø60/100 horizontal kit (Fig. 15).
e kit with this conguration can be extended up to a max.
horizontal length of 12.9 m including the terminal with grid and
excluding the concentric bend leaving the boiler. is congura-
tion corresponds to a resistance factor of 100. In this case the
special extensions must be requested.
Immergas also provides a Ø60/100 simplied terminal, which in
combination with its extension kits allows you to reach a maxi-
mum extension of 11.9 metres.
Horizontal intake-exhaust kit Ø80/125. Kit Assembly
(Fig. 16):
to install the kit Ø80/125 one must use the anged adapter kit
in order to install the ue system Ø80/125. Install the anged
adaptor (2) on the central hole of the boiler, positioning gasket
(1) with the circular projections downwards in contact with the
boiler ange, and tighten using the screws contained in the kit.
Engage the bend (3) with the male side (smooth) to the end stop
on the adapter (1). Fit the Ø80/125 (5) concentric terminal pipe
with the male side (smooth) to the female side of the bend (4)
(with lip seals) up to the end stop; 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.
1.14 CONCENTRIC HORIZONTAL KIT INSTALLATION.
•Type C conguration, sealed chamber and fan assisted.
e position of the terminal (in terms of distances from openings,
overlooking buildings, oor, etc.) must be in compliance with the
regulations in force.
is terminal is connected directly to the outside of the build-
ing for air intake and ue gas exhaust. e horizontal kit can
be installed with the rear, right side, le side or front outlet. For
installation with frontal outlet, one must use the xing plate and
a concentric bend coupling in order to ensure sucient space to
carry out the tests required by law upon commissioning.
•External grid.
Both the Ø60/100 and Ø80/125 intake/exhaust terminal, if
properly installed, is pleasant to look at on the outside of the
building. Make sure that the external silicone wall sealing plate
is properly inserted in the wall.
ATTENTION:
for correct functioning of the system
the terminal with grid must be in-
stalled correctly ensuring that, the "high"
indication present on the terminal is respect-
ed on installation.
Horizontal intake-exhaust kit Ø60/100. Kit Assembly
(Fig. 14):
install the bend with ange (2) on the central hole of the boiler,
positioning gasket (1) with the circular projections downwards in
contact with the boiler ange, and tighten using the screws present
in the kit. Fit the Ø60/100 (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.