Immergas VICTRIX R 24 1 I User manual

VICTRIX R 24 1 I
Condensation wall hung boiler
for central heating only
VICTRIX R 24 1 I

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VICTRIX R 24 1 I
Condensing, sealed chamber suspended boiler
for central heating only. Can be coupled to a
separate storage tank unit
VICTRIX R 24 1 I
VICTRIX R 24 1 I is a wall-hung sealed generator (type C)
with useful heat output of 24 kW (20,640 kcal/h) for room
central heating, prepared for:
- installation on open vessel systems;
- connection to an external pump;
- connection to one external 3-way valve for coupling to a
separate 80, 105, 120 and 200 litre Storage Tank Unit for the
production of domestic hot water.
anks to condensing technology, the boiler distinguishes itself
due to its high eciency and large eld of modulation (from
20 % to100 % of the nominal heat output).
The boiler has a total premix combustion system that
guarantees particularly reduced pollutant emissions and allows
functioning with natural gas or LPG.
e VICTRIX R 24 1 I series boiler is type-approved for
outdoor installation in a partially protected place.
N.B.: a partially protected place is where the appliance is not
exposed to the direct action of weather (rain, snow, hail etc..).
Adjustment and control are entrusted to a P.C.B. with
micro processor with continuous ame modulation, which
using a back-lit display shows the boiler functioning status
(temperatures, safety devices, etc.) and allows connection
(optional) to the Comando Amico Remoto remote control.
is allows to manage and control the boiler at a distance with
extreme simplicity, at the external probe, at the zones control
unit and at the Multi-system Distribution Manifold.
General features.
e hydraulic circuit has a water-gas heat exchanger with coil
in STAINLESS STEEL.
e boiler has an anti-freeze safety device as per standard
that protects it to a temperature of -5°C.
e VICTRIX R 24 1 I boiler must be installed using the
intake/exhaust kits or the ducting systems (Ø 60 mm rigid and
Ø 80 mm exible) realised in plastic and designed expressly for
Immergas condensing boilers.

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Main dimensions and VICTRIX R 24 1 I connections.
Key:
V - Power supply connection
G - Gas supply
SC - Condensate drain (min. internal diameter Ø 13 mm)
R - System return
M - System ow
Height (mm) Width (mm) Depth (mm)
795 440 250
CONNECTIONS
GAS SYSTEM
G R M
3/4” 3/4” 3/4”

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VICTRIX R 24 1 I control panel.
Key:
1 - Boiler status signal display
2 - Stand-by selector- D.H.W./Remote Control - D.H.W. and Central Heating - Reset
3 - Domestic hot water temperature selector
4 - Central heating temperature selector

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VICTRIX R 24 1 I main components.
Key:
1 - Electric connection terminal board
(very low voltage)
2 - Condensate drain trap
3 - Gas valve
4 - Voltage transformer
5 - Fan
6 - Gas nozzle
7 - Venturi
8 - Burner
9 - Flue safety thermostat
10 - Detection electrode
11 - Air intake pipe
12 - Negative sign pressure point
13 - Positive sign pressure point
14 - Sample points (air A) - (ue exhaust F)
15 - Manual air vent
16 - Flue hood
17 - Condensation module
18 - Ignition electrode
19 - Flow probe
20 - Safety thermostat
21 - System ow switch
22 - System draining valve
23 - ree-way connection box external pump

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VICTRIX R 24 1 I hydraulic layout.
Key:
1 - Condensate drain trap
2 - Gas valve
3 - Gas valve outlet pressure point (P3)
4 - Air/gas Venturi collector
5 - Fan
6 - Gas nozzle
7 - Detection electrode
8 - Flue safety thermostat
9 - Air intake pipe
10 - Condensation module
11 - Flue hood
12 - Air sample point
13 - Manual vent valve
14 - ∆p gas pressure point
15 - Flue sample point
16 - Flow probe
17 - Safety thermostat
18 - Ignition electrodes
19 - Burner
20 - Condensation module cover
21 - Venturi negative signal (P2)
22 - Venturi positive signal (P1)
23 - System ow switch
24 - System draining valve
G - Gas supply
SC - Condensate drain
R - System return
M - System ow
Primary circuit.
e primary circuit with relative control and safety devices
is made to operate every time there is a central heating or
anti-freeze request.
Operation.
e heat contained in the fumes produced by combustion
is absorbed by the pipes of the primary coil water-gas heat
exchanger inserted into the condensation module (10), which
then gives this up to the water made to circulate inside it from
the external pump (optional, not supplied with the generator).
e water is introduced directly into the system.

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Primary heat exchanger
(condensation module).
It is formed by a casing that contains 4 coiled elements.
Each element is made up from 5 elliptical spirals (3).
e entire module is realised in stainless steel and its internal
part makes up the sealed combustion chamber and the
condensation chamber (2).
e rst three elements are aected directly by the action of
the cylindrical burner applied to the front, while the fourth is
arranged in the condensation chamber, which is separated from
the combustion chamber by sheet steel (see ue circuit).
To reduce head losses to a minimum and increase the ow rate
available to the system, the ow is made up from the parallel
connection of the rst two elements, the return, instead is made
up from the parallel connection of the last two elements.
e inlet of the heat exchanger is connected to the external
pump ow (optional, not supplied with the boiler) and the outlet,
on which the NTC ow probe is positioned (1), is connected
to the primary circuit ow.
e primary circuit is coupled to the ow and return pipes
using threaded ttings with at gaskets.
e ue hood (4) is connected to the rear using a relevant
gasket blocked by a metal ring.
e condensate drain is also found in the lower part.
To ease the escape of any air bubbles still present in the coils,
there is a manual air vent in the upper part of the module
(5).
2
1
4
3
5
RETURN
FLUE
CONDENSATION
RUNOFF
FLOW

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System ow switch (1).
Faced with circulation of water with a ow rate of at least
400 l/h, the system flow switch (1) enables generator
functioning.
is takes place by means of a disc connected to a micro
switch, which rising when hit by the ow of water, closes an
electric contact.
e closing of the contact, which is positioned outside of the
pipe where the water passes, allows the integrated P.C.B. to
start the generator.
e body is made of two parts in plastic, which are xed to
each other by two self-tapping screws.
e ow switch (1) is push-tted onto the system return pipe
(2) and blocked by two appropriate shaped forks.
1
2
FLOW
RETURN

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Air-gas circuit.
e circuit consists of a total premix combustion system com-
posed of a fan (5), a pneumatic gas valve (7), a Venturi pipe
(3) and a special cylindrical burner (8) that operates inside the
condensation module.
Functioning.
e fan (5) is controlled by the integrated P.C.B. that varies
its speed depending on the output requested.
Its functioning allows to withdraw combustion agent air from
outside of the sealed chamber and introduce it into a pipe
where a Venturi pipe is inserted (3).
At the inlet to the Venturi (3) there is a positive pressure signal
(P1) variable in a directly proportional manner to the amount
of air taken in by the fan (5) and which is detected by a pressure
point connected to the pneumatic gas valve (7).
e electric power supply of the valve main coils causes both
internal shutters to open and allows the passage of gas, whose
outlet pressure is regulated by the same pneumatic valve in a
1:1 ratio to pressure “P1”.
e gas is injected at the entry of the Venturi pipes (3) through
a nozzle (4), where the premix starts with the combustion
agent air.
e mixture obtained in this way is ignited on the surface
of the cylindrical burner (8) by the discharge of the ignition
electrodes (9).
Gas valve.
e gas valve is equipped with two main coils controlled by
the electric circuit and with a pneumatic unit that modulates
the outlet gas pressure in 1:1 ratio to the pressure (P1) detected
on the inlet of the Venturi pipe.
e calibration of the ratio between the air and gas pressures
are carried out on the valve (o-set) (see gas regulations).
Electrical coils (4).
ere are two ON-OFF coils that are powered (230 V AC) by
an integrated P.C.B. when the burner must be ignited.
ey are connected in series and powered by the mains voltage
rectied by means of a jumper of diodes arranged inside the
connector (3).
Pneumatic unit (2).
Allows to vary the outlet pressure in 1:1 ratio with the pressure
(P1) detected at the inlet of the Venturi pipe that is taken back
to the valve using a small silicone pipe (1).
anks to this system, the percentages in the air-gas mixture
are maintained constant at optimal values on the entire range
of modulation, thus guaranteeing a more or less constant
combustion eciency.
e air-gas ratio calibration can be performed using the o-set
adjusting screw (2).
is is necessary only when, after having performed ue
analysis, incorrect combustion parameter values are detected
(see air-gas ratio regulation).
1
2
34

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Fan.
Operates upstream from the combustion chamber and is
positioned under the condensation module.
It is controlled by the integrated P.C.B. with a positive square
wave signal with variable ON-OFF ratio (duty-cycle).
Its speed is adjusted (from about 1100 to about5100 rpm)
depending on the power requested and is controlled using a
sensor with Hall eect, which detects the number of revs.
e fan withdraws the combustion agent air in the upper
part of the sealed chamber through a plastic pipe (1), which
contributes to reducing the noise and optimises burner
ignition.
e variation of the air ow rate that s introduced into the
mixing pipe, leads to the change of the pressure signal (P1) at
the inlet of the Venturi pipe and allows the pneumatic valve
to regulate the pressure of the outlet gas.
Venturi.
e Venturi pipe (1) is inserted into a sealed pipe, inside which
the combustion agent air and the gas are mixed.
e air is introduced by the fan in the lower area of the pipe,
while the gas exiting the valve is injected by a nozzle (2) in
correspondence with the Venturi pipe inlet (1).
e passage of air in the pipe creates a depression (“Venturi
eect”) which, through the 4 holes (3) present at its base, allow
to “drag” the gas inside and to mix it with the air.
e nozzle (2) has a dierent diameter depending on whether
natural gas or LPG is used as, working with both gases with
more or less constant pressure, its section establishes the correct
gas ow rate.
ere are two pressure points at the ends of the Venturi pipe,
used to detect the inlet (P1) and outlet (P2) signals.
Using two small silicon pipes, these signals are taken respectively
to the pneumatic gas valve, which must regulate the gas pressure
and to the negative pressure point (P2) arranged in the upper
part of the sealed chamber.
Burner.
It is a cylindrical burner (5) made up from 2 concentric sheet
steel sections, appropriately perforated and built using a
special steel that is particularly resistent to high temperatures
and corrosion.
It is inserted inside the condensation module, in a sealed
combustion chamber closed by a ange (4) onto which the
burner is xed, which in the meantime guarantees its direct
connection to the air-gas mixing pipe (6).
e premixing, the lack of secondary air and the construction
features of the burner ensure high combustion eciency and
particularly reduced pollutant emissions (see technical data).
e material's high resistance to temperature, allows to work
with a very low ame to a minimum power of 4.7 kW (4,042
kcal/h) (20 % of the heat output).
Ignition takes place by means of an integrated P.C.B. that
controls the ignition (7) and detection electrodes (9).
1
GAS
ARIA
1
2
3
6
9
P1 P2
7
8
4
5
AIR

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IGNITER DRAWING
Ignition electrodes (7).
ey are controlled by an igniter (activated by the integrated
P.C.B.) that causes an electrical discharge between the two
electrodes on which, on contact, the air-gas mixture ignites.
e electrode (8) has no ceramic insulation and is connected
directly to earth (blind electrode).
ey are positioned on the right side of the burner and xed
onto the ange (4) of the same.
Note: If the igniter must be replaced, for correct connection
of the ignition electrodes, follow the lay-out given below
(otherwise no discharge is obtained).
Detection electrode (9).
It is controlled by the integrated P.C.B. and detects ignition
of the burner.
It also acts as a ue safety device when any air intake problems
or problems with the evacuation of combustion products make
the burner function below minimum output.
In this case the flame block due to no detection by the
electrode.
In order to protect the combustion circuit, the same type of
block prevents the module from lling with water when there
is diculty draining condensate (trap blocked, etc).
It is xed onto the left side of the burner ange (4).
Note: In the case of ignition block, check the distances of the
ignition and detection electrodes keeping to the heights stated
in the gure below.
GAS
ARIA
1
2
3
6
9
P1 P2
7
8
4
5
AIR

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Disassembly of combustion circuit main components.
Before disassembling the components, make sure the gas cock
is closed.
Gas nozzle replacement (19).
Loosen the gas pipe (16) in order to access the gas nozzle (19)
positioned at the entry of the Venturi pipe, then replace it with
the gas nozzle that has the suitable diameter for the type of gas
(see gas transformation).
N.B.: on re-assembly of the nozzle (19) pay particular attention
to the correct positioning of the gas gasket.
Burner disassembly (10).
Loosen the gas pipe (16) and unscrew the two screws (21)
that x the collector to the fan, then loosen the 6 blind nuts
(15) that block the gas collector ange to the condensation
module (8). To replace the burner graphite gasket (11) loosen
the 4 screws (24).
N.B.: on re-mounting the burner unit/collector pay particular
attention to the correct positioning of the cord packing (23),
gas gasket (25), gas pipe gasket (16) and gasket between fan
ange and gas collector (13).
Condensation module disassembly (8).
Before carrying out the operation drain o all water present
inside the module.
Loosen the tightening bolts on the system ow and return
pipes positioned in the lower part of the module. Loosen the
two screws (7) and (9) that x the condensation module to
the support back using brackets and sheet steel.
N.B.: when restoring the connection between condensation
module and ue hood, pay particular attention to the correct
positioning of the lip gasket (6) and the seal seating (5).
Flue hood disassembly (1).
Loosen the two nuts (4) that fix the flue hood to the
condensation module support sheet steel (3), then separate
the ue hood from the ange with sample points, pulling
downward.
N.B.: when re-mounting the ue hood and restoring the
connection between flue hood and flange with sample
points, check the status of the ue gasket (2) and its correct
positioning.
Disassembly and replacement of ignition and detection
electrodes.
Loosen the two xing screws on the ignition electrodes unit
(22) or (26). Loosen the two xing screws on the detection
electrode (14).
N.B.: when re-mounting the detection electrode (14) and the
ignition electrode (22) be sure to re-mount the O-ring while
for the dummy electrode (26) be sure to remount the gasket
correctly. For all electrodes, scrupulously follow the minimum
heights stated in the diagram in the page at the side.
13
9
11
12
7
6
10
14
8
16
17
18
19
20 21 22
23 24
15
5
25
2
4
3
97
1
26

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Air-gas adjustments.
e calibration of the total premix combustion system, when
necessary envisions, the adjustment of the nominal heat output
and the air-gas ratio (o-set).
e two operations are only normally requested after a gas
transformation, after extraordinary maintenance (replacement
of a component of the air-gas circuit, replacement of the integrated
P.C.B. etc.) or when the appliance is not calibrated.
N.B.: e nominal output must also be adjusted during
the initial check.
Adjustment of nominal and minimum heat
output.
e availability of maximum output is linked to the length of
the intake and exhaust pipes which, increasing, slightly reduces
the amount (ow rate) of inlet air and consequently also la
pressure of the burnt gas.
e boiler is calibrated as per standard for functioning with
a Ø60/100 horizontal concentric kit with length of 1m and
therefore the use of the ue kit with greater head losses requires
a check and possible adjustment of the nominal output.
e operation must be performed as follows and with respect
to the values stated in the heat output adjustment table:
- connect a dierential manometer to the pressure points P1
(positive point) and P2 (negative point) found in the upper
part of the sealed chamber (in this way the pressure dierence
at the ends of the Venturi pipes (P1-P2) is detected and a pres-
sure signal is measured that corresponds to the real ow rate of
the air-gas mixture at the burner).
- calibration functions, positioning the D.H.W. adjustment
selector on notch N° 6 and the C.H. adjustment selector on
notch N° 9.
- turn the main selector to the Reset position for15 seconds,
then release it when "Id" (identication) appears on the boiler
display.
- once the calibration menu has been accessed, the display will
show the anomaly symbol and the ame symbol with the
lower and upper segment ashing alternately.
N.B.: If identication does not take place within 15 seconds,
the boiler will go into Stand-by and error code E08 will be
displayed, equivalent to "Reset selector fault". To restore
appliance functioning, turn the main selector to position
(Stand-by).
- at this point it will be possible to vary the maximum
output in D.H.W. operating on the D.H.W. adjustment
selector regulating fan speed from 4500 to 5400 until a
pressure value is obtaind(P1-P2)that corresponds to the
nominal output (notch N° 9 corresponds to the maximum
speed= 5400 rpm, notch N° 0 corresponds to the minimum
speed= 4500 rpm ).
N.B.: During the adjustment of the maximum output
in D.H.W. mode, the C.H. selector must be regulated to
maximum (notch N° 9).
P1
P2
- after having set the maximum output in D.H.W. mode,
the maximum output must be adjusted in C.H. mode,
by acting on the C.H. adjustment selector. e range of
adjustment of the power in C.H. mode varies from maximum
(set at that time by the D.H.W. selector) to minimum. In this
way it is possible to adjust the fan speed until the pressure
value is obtained (P1-P2) corresponding to the nominal
output in C.H. mode (see heat output data). During
adjustment, the display shows the fan speed in hundreds of
revs. per minute.
D.H.W. C.H.
D.H.W.
nominal maximum speed
adjustment
C.H.
nominal
maximum speed
adjustment

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Attention: the power relative to functioning in D.H.W.
mode can be regulated to a value equal to 26 kW, while the
functioning power in C.H. mode must never exceed 24 kW
(see technical data referring to the heat output).
N.B.: the adjustment of the minimum power output takes
place at the same time as calibration of the nominal heat
output. In fact, the integrated P.C.B. automatically adapts fan
speed control in a way to keep the eld of modulation at the
minimum heat output of 4042 kcal/h.
- to conrm and memorise the settings made, turn the main
selector to the Reset position for at least 2 seconds, the boiler
goes into the chimney sweep status. At this point it is possible
to check the calibration values with burner ignited or exit
the chimney sweep function by taking the main selector to
the position (Stand-by).
N.B.: If the values set are not conrmed, the calibration values
are not modied (the previous ones remain active), to modify
the values, repeat the operation from the beginning.
Regulation of the air-gas ratio (o-set).
e correct regulation of the air-gas ratio (1:1) takes place
in the factory and must only be re-touched when carbon
dioxide (CO2) values are detected in the fumes that are
not optimal.
With this scope, during the initial check or following
extraordinary maintenance interventions, ue analysis
must be performed at maximum heat output and minimum
heat output, which attests the goodness of the combustion in
reference to the values indicated in the table below:
VICTRIX R 24 1 I
CO2at nominal heat
output (central heating)
CO2at minimum heat
output (central heating)
G 20 9.35% ± 0.2 8.90% ± 0.2
G 30 12.25% ± 0.2 11.90% ± 0.2
G 31 10.45% ± 0.2 10.20% ± 0.2
To carry out the control correctly and, if necessary, regulate
the air-gas ratio, proceed as follows:
VK 4115 gas valve
Calibration of maximum CO2.
- start the boiler in chimney sweep mode and adjust the
C.H. temperature selector, present on the control panel, to
maximum.
- withdraw the combustion products by inserting the analyser
probe fully home.
- check whether the value of carbon dioxide (CO2) is within
the limits indicated in the table regarding the nominal heat
output (see table.
- if the values are incorrect, take them back within the limits
by acting on the gas ow rate adjusting screws (12) of the
gas valve. By turning in a clockwise direction the CO2value
decreases, by turning it in an anti-clockwise direction it
increases.
Calibration of minimum CO2.
- take the C.H. temperature selector, present on the control
panel, to minimum and check the correspondence of the
carbon dioxide (CO2) value measured with that indicated in
the table regarding the minimum heat output (see table).
- if the values are incorrect, take them within the limits by
acting on the o-set adjusting screws (3) of the gas valve.
By turning in a clockwise direction the CO2value increases,
by turning in an anti-clockwise direction, it decreases.
Gas transformation.
e adaptation to the type of gas dierent to that for which
the boilers are prepared as per standard is performed using the
relevant kit (methane or LPG).
e transformation consists in the replacement of the burner
nozzles positioned in correspondence with the inlet of the
Venturi pipe and adjustment of the maximum heat output
(see nominal and minimum heat output regulation).
Finally, check the carbon dioxide value (CO2) at maximum
and minimum power output, which must be corrected if
necessary by regulating the o-set signal (see air-gas ration
regulation).
Key:
1 - Gas valve inlet pressure point
2 - Gas valve outlet pressure point
3 - O-Set adjusting screw
12 - Outlet gas ow rate regulator

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when the temperature detected on the condensation module
exceeds110 °C.
Condensate drain trap (4).
Collects the condensate that forms during boiler functioning
from the bottom of the module.
Its outlet is connected to the draining pipe (11) towards which
the passage of water is allowed but not the passage of fumes,
which could occur following obstruction of the evacuation
pipes.
e height of the column of water in the siphon is in fact
greater than the pressure detected inside the sealed chamber
(module) with the fan at maximum speed and the evacuation
pipes blocked at functioning limits.
is, however, prevents the draining of combustion products
into the sewers.
On commissioning fumes may escape from the exhaust pipe
(11) which disappear after a few minutes of functioning when
the condensate has reached a sucient height. If this should
take too long, ll the siphon with water manually (4).
Flue circuit.
Functioning.
e functioning of the fan positioned at the entry of the air-
gas mixing pipe, guarantees the fan-assisted expulsion of the
fumes produced by combustion.
ese directly hit the three elements of the primary heat
exchanger inserted in the sealed combustion chamber (6) which
has a sheet steel section on its base (7) that divides it from the
condensation chamber (2) and diverts the ow of fumes to the
outside of the module.
In this way the ue gases, before entering the condensation
chamber (2), it the fourth element (3) of the heat exchanger
inside which primary circuit return water runs.
is cools the combustion products further and makes their
condensation easier before escape from the ue hood (1).
e water condensate formed inside the heat exchanger, in
the ue hood and also in the evacuation pipes ows into the
lower part of the module from where, before being discharged,
is conveyed into a siphon (4). Any water formed in the intake
pipes is collected in a valley gutter (13) and by means of a
silicone pipe (10) is conveyed into the siphon (4) to then be
drained away.
Flue hood (1).
It is connected to the rear part of the condensation module
and conveys the combustion products towards the drain tting
present in the upper part of the appliance.
It s aected by the passage of fumes and water condensate
formed inside it or in the exhaust pipes.
It is constructed in plastic, resistant to the corrosive eects of
the condensate and can work to a temperature of 130 °C (max.
ue temp with ow 85 °C = 78 °C).
A ue safety thermostat is inserted onto the condensation
module (12), to protect the ue hood (1) and which intervenes
Gas
Air
Condensate
drain
Flue exhaust
1
4
10 11
12
13

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Intake and exaust systems.
(see intake and exhaust terminals instructions).
e VICTRIX R 24 1 I boiler is prepared for connection to the
appropriate snap-t intake/exhaust pipes and can be installed
inside the home or outside the home or outside of the home (in
a partially protected place) in the following congurations:
Outdoor (in partially protected place):
- sealed chamber and fan-assisted with direct intake (type C)
using a compulsory upper cover kit (optional);
- with sealed chamber and fan-assisted (type C) using the
vertical or horizontal concentric kits, keeping the lateral
caps, without the obligation to use the upper cover kit.
Indoor:
- open chamber and fan-assisted (type B23) using a compulsory
upper cover kit (optional);
- sealed chamber and fan-assisted (type C) using the vertical
or horizontal concentric kits or the Ø80/80 separator kit.
For that regarding the head losses relative to each accessory,
for the various combinations that can be performed, see the
instructions relative to the intake and exhaust terminals
(boiler instruction book).
e generators with condensation technology must be installed
using the specic series of intake and exhaust pipes, which has
been designed to be coupled exclusively to the Immergas
condensing boiler.
e “GREEN SERIES” ue kit is made in plastic (PPS = self-
extinguishing polypropylene) suitable for resisting the corrosive
action of the acid condensate.
Sealed chamber and fan-assisted conguration
with direct intake for installation outdoors in a
partially protected place (see gure at the side).
Using an appropriate cover (1) to be positioned on the upper
part of the sealed chamber, the boiler can be installed outdoors
in a partially protected place.
Intake.
Mounting of the cover (1) envisions the removal of the two
caps closing the holes present in the upper part of the sealed
chamber and the use of an appropriate plate (3) to cover the
right intake hole.
e intake of combustion agent air takes place directly from the
environment making use of the free space between the lower
part of the cover (1) and the upper part of the boiler.
Exhaust.
e connection to the exhaust pipes with diameter of 80 mm
is obtained using the ange (2) used in the divided systems.
e use of the appropriate accessories allows horizontal (A) or
vertical (B) draining.
To prevent condensate problems, the exhaust pipe must be
limited to 30 straight metres.
Open chamber and fan-assisted conguration
(type B22) for indoor installation (see gure
above).
e previously-described cover kit is used.
By removing the lateral caps present in the upper part of the
sealed chamber and the use of an appropriate plate (3) to cover
the right intake hole, intake takes place directly from the room
in which the boiler is installed.
Flue exhaust takes place through special pipes wih a diameter
of 80 in an individual ue or directly to the outside.
2
1
B
A
3

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Sealed chamber and fan-assisted conguration
(type C).
Exhaust.
e connection to the exhaust pipes takes place using a ange
(1) or a anged curve to attach to the tting (4) present on the
upper part of the sealed chamber by placing a shaped gasket
between them (6).
e ange diers depending whether the divided or concentric
system is used.
In the rst case the passage for combustion agent air intake
(5) is closed while it is used in the second case.
Intake.
Using the divided system, the connection to the intake pipes
takes place in a similar way to the exhaust pipes, they being
connected to the hole with diameter of 80 mm (2) present in
the upper part of the sealed chamber.
e hole that is not used remains closed using one on the ap-
propriate caps (3) with which the boilers are supplied.
If coaxial pipes are used, intake of the combustion agent air
takes place using the concentric hole outside of the exhaust
tting (5).
Intake and exhaust kit.
e kits with relative accessories allow the use of two concentric
systems, one divided system and two specic systems for
ducting (Ø 60 rigid or Ø 80 exible).
For that regarding head losses relative to each accessory, for
the various combinations that can be carried out, follow the
instructions relative to the intake and exhaust terminals
(see boiler instructions book).
e coupling of the accessories (curves, extensions, terminals)
is push-tting type and sealing is ensured by the lip seals in
EPDM peroxide resistent to the action of the condensate.
1
2
45
6
3

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Push-tting horizontal concentric kit Ø 60/100.
e exhaust pipe in PPS (Ø 60 mm) is inserted inside the
aluminium intake pipe (Ø 100 mm).
e connection is made to the boiler using a 90º curve (2) that
can be turned in all directions and which, using the necessary
extension, is connected to the relevant intake and exhaust
terminals (3).
e total maximum length accepted beyond the rst curve (2)
is 12.9 straight horizontal metres.
Push-tting vertical concentric kit 60 /100.
e exhaust pipe in PPS (Ø 60 mm) is inserted into the
aluminium intake pipe (Ø 100 mm).
It is connected to the boiler using a concentric ange 60/100
(2) which, using extensions, is connected to the relevant intake
and exhaust terminal 60 /100 (5) with aluminium tile (4).
e maximum total length is 14.4 straight vertical metres.
e push-tting separator kit 80/80.
e intake and exhaust pipes (7 and 10) are both in PPS and
have a diameter of 80 mm.
Connections to the boiler take place using the two relevant
anges that allow exhaust (4) from the central tting and intake
(3) from one of the two lateral holes.
e maximum accepted length (intake + exhaust) is 36 straight
horizontal metres and 41 straight vertical metres.
N.B.: It is compulsory to install an optimiser plate (5) inside
the ange (4) and before the exhaust pipe.
5
4
3
1
2
7
1
2
3
46
5
1
4
8
10
667
8
9
3
2
5
A
B

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System for ducting 60 rigid.
It is a kit that allows ducting Ø 60 mm of existing ues/
chimneys/technical slots to be used exclusively with a unique
Immergas condensing appliance.
Fit a 90° bend (5) to the appliance exhaust pipe which, using
the necessary vertical extensions (2), must be connected to the
relevant exhaust terminal (1).
Coupling of the various accessories envisions, as well as tting
with gaskets in EPDM peroxide, also fastening using pipe
clamps (4).
ese must be alternated with clips with spacer ns (3), which
allow centring of the exhaust pipe inside the old ue.
e system can be inspected through the hatch (6) positioned
at the mouth of the tting with the boiler fumes evacuation
pipe.
Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust)
with intake grid, the maximum length allowed is 22 straight
vertical metres.
1
2
3
45
1
2
2
3
4
56
System for ducting 80 exible.
It is a kit that allows ducting Ø 80 mm of existing ues/
chimneys/technical slots to be used exclusively with a unique
Immergas condensing appliance.
Fit a 87° bend (4) to the appliance exhaust pipe which, using
the necessary vertical extensions (3), must be connected to the
relevant exhaust terminal (1).
Remember to insert a spacer with ns every now and again (2),
which allow centring of the exhaust pipe inside the old ue.
e system can be inspected through the hatch (5) positioned
at the mouth of the tting with the boiler fumes evacuation
pipe.
Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust
+ two direction variations of the vertical tract) with intake grid,
the maximum length allowed is 30 straight vertical metres.