1. No category

Ecological floor-standing
condensing boiler
with stainless steel storage tank
S.C HABITAT & SERVICE INSTALATII S.R.L
str. Biharia nr.67-77, sector 1, Bucuresti, ROMANIA
reparatiicentrale.com.ro
Dispecerat Non Stop
Tel.: 0729 983 578
Disp.Non-Stop: 0729.983.578
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HERCULES Condensing 26 2 E / 32 2 I
HERCULES
Condensing 26 2 E / 32 2 I
Disp.Non-Stop: 0729.983.578
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Technical Documentation
Technical Documentation
HERCULES Condensing
Ecological floor-standing condensing
boiler with 120 litre storage tank
HERCULES Condensing 26 2 E
HERCULES Condensing 32 2 I
HERCULES Condensing ABT 32 2 I
General features.
HERCULES Condensing combines the advantages of an
ecological condensing boiler with VICTRIX Superior type microprocessor with those of a floor standing boiler with storage
tank. The range envisions two versions with useful heat outputs
of 23.9 kW (20554 kcal/h) and 32.0 kW (27520 kcal/h). Both
models are equipped with a total premix combustion system,
which guarantees particularly low pollutant emissions and
allows functioning with methane or LPG. Thanks to condensation technology, it is characterised for its high efficiency and
for the large modulating field (20÷100% of the nominal heat
output). The hydraulic circuit, made up from one stainless steel
water-gas coil exchanger, a hydraulic manifold inserted as per
standard and two pumps, means that the boiler is suitable for
the heating systems that require high flow rate.
HERCULES Condensing can function in zone systems controlled by pumps: it is, in fact, prepared to house the pumps
necessary to control up to 3 zones on the heating system inside
the casing. It is also prepared for the realisation of mixed systems: one high temperature zone (e.g. radiators) and two low
temperature zones (e.g. floor radiating panels) by inserting the
optional kit inside the casing (including pumps, mixer valves
and zone management board). The new zone management board
allows to use the Remote Control (optional) to control that
considered to be the main zone.
N.B.: The HERCULES Condensing ABT boiler is equipped
to manage a high temperature zone (example radiators) and a
low temperature zone (example floor radiating panels). The temperature of the flow water onto the low temperature zones can
be adjusted on the boiler control panel (whenever functioning
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with variable temperature is not envisioned) from 25 to 50°C.
All models are prepared for coupling and connection of the
storage tank to solar panel systems (optional).
The new electronics allow the connection of the appliance
to the Comando Amico Remoto and to the Super Comando
Amico Remoto remote control; both allow to manage and
control the boiler at a distance with great ease. Using the Super
CAR it is possible to indifferently vary some settings from the
boiler control panel and from the Super CAR control panel,
such as: selection of Summer Winter, DHW set point, DHW
comfort status, Reset.
The adjustment and the control of the appliance are entrusted
to a P.C.B. with continuous flame modulation. The boiler
functioning parameters are set using the buttons and knobs
while display of the status, functioning mode and anomalies
takes place on the back-lit digital display.
The DHW circuit is equipped with a 5 litre expansion vessel
and a120 litre stainless steel storage tank which, as well as the
advantages of storage, guarantees the instantaneous production of hot water.
HERCULES Condensing must be installed using the intake/
exhaust kits or the ducting systems (Ø 60 mm rigid, Ø 80 mm
rigid and Ø 80 mm flexible) realised in plastic and designed
expressly for Immergas condensing boilers.
1
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Main dimensions and connections.
HERCULES Condensing
Key:
RA3 - Zone 3 high temperature system return G
3/4” (optional)
MA3- Zone 3 high temperature system flow G 3/4”
(optional)
RA2 - Zone 2 high temperature system return G
3/4” (optional)
MA2- Zone 2 high temperature system flow G 3/4”
(optional)
RB2 - Zone 2 low temperature system return G 1”
(optional)
MB2- Zone 2 low temperature system flow G 1”
(optional)
RB1 - Zone 1 low temperature system return G 1”
(optional)
MB1- Zone 1 low temperature system flow G 1”
(optional)
RA1 - Zone 1 high temperature system return G
3/4”
MA1- Zone 1 high temperature system flow G 3/4”
G - Gas supply G 1/2”
AC - DHW outlet G 3/4”
AF - DHW inlet G 3/4”
RC - Recirculation G 1/2” (optional)
RP - Solar panels return G 3/4” (optional)
MP - Solar panels flow G 3/4” (optional)
SC - Condensate drain
(minimum internal diameter Ø 13 mm)
HERCULES Condensing ABT
Key:
RB2 - Zone 2 low temperature system return G 1”
(optional)
MB2- Zone 2 low temperature system flow G 1”
(optional)
RB1 - Zone 1 low temperature system return G 1”
MB1- Zone 1 low temperature system flow G 1”
RA1 - Zone 1 high temperature system return G
3/4”
MA1- Zone 1 high temperature system flow G 3/4”
G - Gas supply G 1/2”
AC - DHW outlet G 3/4”
AF - DHW inlet G 3/4”
RC - Recirculation G 1/2” (optional)
RP - Solar panels return G 3/4” (optional)
MP - Solar panels flow G 3/4” (optional)
SC - Condensate drain
(minimum internal diameter Ø 13 mm)
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HERCULES Condensing control panel.
Key:
- Stand-by - On Button
A - Summer ( ) and winter ( ) functioning mode selection button
B - DHW priority button ( )
C - (RESET) / menu exit (ESC) reset button
D - Menu entry button (MENU)/ data confirmation (OK)
1 - Domestic hot water temperature selector
2 - Domestic hot water temperature set
3 - Central heating temperature selector
4 - Central heating temperature set
4 - Presence of anomalies
6 - Display of boiler functioning status
8 - Flame presence symbol and relative power scale
9 and 7 - Primary heat exchanger outlet water temperature
10 - Boiler in Stand-by
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11 - Boiler connected to remote control (Optional)
12 - Functioning in summer mode
13 - Anti-freeze function in progress
14 - Functioning in winter mode
15 - Functioning with domestic hot water priority active
16 - Connection to external tools for technician
17 - Display of menu items
18 - Functioning with external temperature probe active
19 - Display of data confirmation or menu access
20 and 7 - External temperature display
with external probe connected (optional)
21 - Display of reset or exit menu request
22 - Chimney sweep function in progress
23 - Boiler manometer
24 - Multi-function display
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HERCULES Condensing main components.
ey:
K
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
22 -
23 -
Stainless steel storage tank unit
DHW recirculation pump (optional)
Three-way valve (motorised)
Zone 1 by-pass
Zone 1 one-way valve
Zone 1 pump
Safety thermostat (Low temperature) (optional)
Flow probe (Low temperature) (optional)
Zone 2 pump (optional)
Zone 2 one-way valve (optional)
Zone 2 by-pass (optional)
Mixing valve (optional)
Condensation module
Flue safety thermostat
Burner
Ignition electrode
Detection electrode
Venturi
Gas nozzle
Fan
Cold water inlet valve
8 bar safety valve
Air intake pipe
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24 -
25 -
26 -
27 -
28 -
29 -
30 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46 -
4
3 bar safety valve
D.H.W. expansion vessel
System filling valve
Condensate drain trap
Polyphosphate dispenser (optional)
Domestic hot water probe
Storage tank unit draining valve
Sample points (air A) - (flue gas F)
Positive signal pressure point
Negative signal pressure point
Manual air vent valve
Vent valve
Zones management electrical connection box (optional)
Hydraulic manifold
System expansion vessel
Flow probe
Safety thermostat
Manifold draining valve
System pressure switch (absolute)
Boiler Pump
Sealed Chamber
Gas valve
System draining valve
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HERCULES Condensing ABT main components.
ey:
K
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
22 -
23 -
Stainless steel storage tank unit
DHW recirculation pump (optional)
Three-way valve (motorised)
High temp. zone automatic by-pass
High temp. zone one-way valve
High temperature zone system pump
Low temperature safety thermostat
Low temp. flow probe
Low temperature zone system pump
Low temp. zone one-way valve
Low temp. zone automatic by-pass
Mixing valve
Condensation module
Flue safety thermostat
Burner
Ignition electrode
Detection electrode
Venturi
Gas nozzle
Fan
Cold water inlet valve
8 bar safety valve
Air intake pipe
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24 -
25 -
26 -
27 -
28 -
29 -
30 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46 -
5
3 bar safety valve
D.H.W. expansion vessel
System filling valve
Condensate drain trap
Polyphosphate dispenser (optional)
Domestic hot water probe
Storage tank unit draining valve
Sample points (air A) - (flue gas F)
Positive signal pressure point
Negative signal pressure point
Manual air vent valve
Vent valve
Zones management electrical connection box
Hydraulic manifold
System expansion vessel
Flow probe
Safety thermostat
Manifold draining valve
System pressure switch (absolute)
Boiler Pump
Sealed Chamber
Gas valve
System draining valve
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HERCULES Condensing hydraulic diagram.
Standard Configuration
ey:
K
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
22 -
23 -
24 -
25 -
26 -
27 -
28 -
29 -
23 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -
41 -
42 -
Stainless steel coil for storage tank
System draining valve
Polyphosphate dispenser (optional)
System filling valve
3 bar safety valve
Manifold draining valve
Condensate drain trap
Gas valve
Gas valve outlet pressure point (P3)
Air intake pipe
Fan
Gas nozzle
Detection electrode
Burner
Flue safety thermostat
Condensation module covers
Condensation module
Manual air vent valve
Flue hood
Air sample point
Flue sample point
Pressure point ΔP gas
Flow probe
Safety thermostat
Ignition electrode
Boiler Pump
System pressure switch (absolute)
Three-way valve (motorised)
Venturi positive sign P1
Venturi negative sign P2
Air/gas Venturi manifold
System expansion vessel
Vent valve
Hydraulic manifold
Zone 1 pump
Zone 1 one-way valve
Zone 1 by-pass
D.H.W. expansion vessel
Cold water inlet valve
Cold water inlet filter
Flow limiter
Cold water inlet non-return valve
43 -
44 -
45 -
46 -
47 -
8 bar safety valve
DHW recirculation pump (optional)
Domestic hot water probe
Magnesium anode
Storage tank unit draining valve
A1-
R
MA1
G -
AC -
AF -
RC -
RP -
MP -
Zone 1 system return (High temperature)
- Zone 1 system flow (High temperature)
Gas supply
Domestic hot water outlet
Domestic cold water inlet
Domestic hot water recirculation
Return from solar panels
Flow from solar panels
The hot water used for central heating and domestic hot water
is produced via a primary and a secondary circuit (DHW)
which are affected according to necessity.
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HERCULES Condensing ABT hydraulic diagram.
ey:
K
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
22 -
23 -
24 -
25 -
26 -
27 -
28 -
29 -
23 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46 -
47 -
48 -
49 -
50 -
Stainless steel coil for storage tank
System draining valve
Polyphosphate dispenser (optional)
System filling valve
3 bar safety valve
Manifold draining valve
Condensate drain trap
Gas valve
Gas valve outlet pressure point (P3)
Air intake pipe
Fan
Gas nozzle
Detection electrode
Burner
Flue safety thermostat
Condensation module covers
Condensation module
Manual air vent valve
Flue hood
Air sample point
Flue sample point
Pressure point ΔP gas
Flow probe
Safety thermostat
Ignition electrode
Boiler Pump
System pressure switch (absolute)
Three-way valve (motorised)
Venturi positive sign P1
Venturi negative sign P2
Air/gas Venturi manifold
System expansion vessel
Vent valve
Hydraulic manifold
Low temp. zone one-way valve
Low temp. zone mixing valve
Low temperature zone system pump
Low temperature safety thermostat
Low temp. zone flow probe
Low temp. zone automatic by-pass
High temperature zone system pump
High temp. zone one-way valve
High temp. zone automatic by-pass
D.H.W. expansion vessel
Cold water inlet cock
Cold water inlet filter
Flow limiter
Cold water inlet non-return valve
8 bar safety valve
DHW recirculation pump (optional)
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51 - Domestic hot water probe
52 - Magnesium anode
53 - Storage tank unit draining valve
RB -
MB -
RA -
MA -
G -
AC -
AF -
RC -
RP -
MP -
7
Low temperature zone system return
Low temperature zone system flow
High temperature zone system return
High temperature zone system flow
Gas supply
Domestic hot water outlet
Domestic hot water inlet
Domestic hot water recirculation
Return from solar panels
Flow from solar panels
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Primary circuit (boiler circuit).
The primary circuit, with relative control and safety devices,
is started every time there is a central heating or domestic
hot water request.
Operation (see HERCULES Condensing hydraulic diagram).
The heat contained in the combustion products is absorbed
by the pipes of the water-gas primary heat exchanger with coil
inserted in the condensation module (17) which then gives
the heat up to the water made to circulate inside the boiler
pump (26).
The water is introduced directly into the hydraulic manifold
(34) and therefore to the system or can be diverted inside the
storage tank coil (1).
This depends on the position of the motorised 3-way valve
(28), which depending on request, allows flow towards the
system flow and return pipes of the hydraulic manifold (34)
or causes diversion towards the coil (1).
Boiler pump (1).
Operates on the primary circuit return immediately after the
3-way valve to which it is connected. It is part of the integrated
multifunction unit realised in composite material.
There is a seat on the body where the automatic air vent valve
(2) is housed.
2
1
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Primary heat exchanger
(condensation module).
It is formed by a casing that contains 4 (version 26 2 E) and 5
(version 32 2 I) coil-shaped elements.
Each element is made up from 5 elliptical spirals (3).
The entire module is realised in stainless steel and its internal
part makes up the sealed combustion chamber and the condensation chamber (2).
HERCULES Condensing 26 2 E.
The first three elements are affected 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 flue circuit).
To reduce head losses to a minimum and increase the flow rate
available to the system, the flow is made up from the parallel
connection of the first two elements, the return, instead is made
up from the parallel connection of the last two elements.
HERCULES Condensing 32 2 I.
The first four elements are affected directly by the action of
the cylindrical burner applied to the front, while the fifth is
arranged in the condensation chamber, which is separated from
the combustion chamber by sheet steel (see flue circuit).
To reduce head losses to a minimum and increase the flow
rate available to the system, the flow is made up from the
parallel connection of the first three elements, the return,
instead is made up from the parallel connection of the last
two elements.
For both versions, the heat exchanger inlet is connected to
the pump flow and the outlet, on which the NTC central
heating probe is positioned (1), is connected to the primary
circuit flow.
The primary circuit return and flow pipes are coupled using
threaded fittings with flat gasket.
The flue hood (4) is connected to the rear using a relevant
gasket blocked by a metal ring and fixed using three nuts to
the steel condensation module.
The 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).
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4
FLUE GAS
5
3
2
1
FLOW
RETURN
CONDENSATE
DRAIN
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Motorised 3-way valve.
It is an electric 3-way valve operating on he primary circuit
return that allows, according to request (DHW or CH), to
introduce boiler water into the CH system or the storage
tank coil.
This depends on the position of the shutter (5) which, closes
the passage towards the system opening it at the same time
towards the storage tank (DHW position) or vice versa (CH
position).
The shutter (5) is moved into both positions by powering the
motor (1).
The hydraulic part is made up from a group of composite
material (2) that also integrates the pump and is put into action thanks to a motor (1) that causes movement according
to necessity.
Hydraulic
manifold
return
Pump
Flow
2
Operation.
When it is necessary to reach the CH or DHW position, the
motor (1) is activated by the P.C.B.
Functioning of the motor leads to the movement of the shutter (5) at every 180° rotation and compresses (CH position) or
leaves (DHW position) the shutter contrast spring to release
(4).
Both the spring (4) and the shutter (5) are situated inside the
3-way cartridge (3).
The hydraulic arrival at the requested position, alternatively
causes the opening and closure of one of the two end run micro
switches (6) organised inside the motor box (1).
This allows to remove voltage to the motor blocking it in the
position reached and to enable motor functioning only in the
presence of a different request (DHW or CH signal).
5
1
Storage tank
coil
return
3
4
PUMP
RETURN
HYDRAULIC
MANIFOLD
RETURN
COIL
RETURN
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Safety devices and controls.
System filling (3).
It is a ball valve positioned between the boiler circuit and the
domestic cold water inlet that allows to pressurise the CH
system.
The valve is connected to the domestic cold water inlet unit
(4).
6
5
System pressure switch (5).
Detects the pressure inside the primary circuit.
Its seat is on the flow pump body directly on the hydraulic unit
and is coupled to a micro switch that prevents functioning of
the burner when the pressure detected is below 0.3 bar.
Prevents overheating of the main heat exchanger.
Automatic air vent valve (6).
Allows the automatic expulsion of the gaseous substances that
may be present in the boiler circuit.
It is mounted on the pump flow directly on the hydraulic
unit.
4
3 bar safety valve (7).
Prevents the safety pressure in the primary circuit from being
exceeded (3 bar).
It is situated in the right side of the boiler and is visible by
opening the right lateral door. It is positioned on the hydraulic
unit connection pipe - filling valve.
3
System expansion vessel (8).
It compensates the volume variation consequent to heating
the water, thus limiting the pressure variations.
It has a capacity of 12 litres and a factory-set pressure of 1.0
bar.
It is organised at the rear of the upper right zone of the appliance.
7
8
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GIM Multifunction Integrated Unit.
9
10
2
3
1
8
4
6
5
7
System pressure switch replacement (10).
To replace the system pressure switch (10), slide the relevant
locking clips out.
N.B.: when re-mounting the system pressure switch, pay particular attention to insert the relative O-ring correctly.
Before replacing the various components present on the GIM
unit, the water present inside the primary circuit must be
drained by opening the system draining valve positioned on
the storage tank return connection pipe.
Before draining, ensure that the system filling valve is closed.
Three-way valve cartridge replacement (1).
To replace the 3-way cartridge (1) slide the locking clip out (2)
and extract the small electric motor (3) and then unscrew the
screw fasteners (4) that fix the cartridge (1) to the composite
body (6).
N.B.: when re-mounting the cartridge, pay particular attention to correctly insert the two small sheet steel reinforcement
plates (5).
Pump motor replacement (7).
To replace the pump body, remove the 4 screws (8) that fix the
motor (7) to the composite body (6).
Replacement of the automatic air vent valve (9).
To replace the air vent valve, the relative locking clip must be
removed and the valve extracted (9) paying attention not to
damage the relative O-ring.
N.B.: when re-mounting the air vent valve, pay particular
attention to insert the relative O-ring correctly.
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Central heating circuit.
HERCULES Condensing functioning with 1 pump (Zone 1)
(standard configuration).
STORAGE TANK
COILS
RETURN
STORAGE TANK
COILS
FLOW
Following a central heating type request, the P.C.B. starts the
boiler pump (2), powers the central heating pump (4) and
powers the electric 3-way valve motor (3) causing it to shift
to the central heating position.
In this way the passage towards the storage tank coil is closed
and that towards the hydraulic manifold is opened (1) into
which the water from the primary circuit is introduced.
The hot water is introduced directly into the system through
the flow (MA1) and return (RA1) pipes via the central heating pump (4).
Thanks to functioning with the two pumps (2 and 4) and
the use of an open hydraulic manifold (1) the water flow rate
and the head available are particularly high (see flow rate/head
graphics).
1
RA1
MA1
4
2
3
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Central heating pump (4).
It operates on the system flow after the hydraulic manifold
(1).
It is physically fixed onto the system flow pipe and to the
boiler flow manifold, to which it is connected using threaded
fittings.
Hydraulic manifold (1) (manifold).
It is an open manifold onto which the coiler and system flow
and return pipes are connected and which allows, along with
boiler (2) and CH pumps (4) (see previous page) to make a flow
rate and head available to the system that is high with respect
to the traditional boiler.
This takes place because the circulation inside the primary
circuit is guaranteed by the boiler pump and therefore the CH
pump head is not reduced by the appliance head losses.
The open manifold (1) also allows to mix the flow water with
a part of the return water and therefore supply a flow rate that
is higher than that circulating in the boiler.
To ease the escape of any air bubbles and gaseous substances,
there is an automatic air vent in the upper part of the hydraulic
manifold (2).
2
1
R3
M3
Safety devices and controls.
R2
By-pass (6).
Guarantees circulation in the primary circuit also when the
high resistance of the system does not allow it.
It is mounted between the system flow and return connection
pipes.
M2
R1
System filter (7).
It prevents any impurities present in the system from obstructing the primary circuit (heat exchanger) and preserves the oneway valves by preventing leaks occurring on the CH system
during DHW functioning.
It is inserted into the by-pass block in correspondence with
the fitting to the system return pipe.
M1
Primary
Flow
"Europa" system one-way valve (5).
Prevents undesired circulation in the system when the pump
(4) is not working.
It is inserted into the first flow pipe of the respective by-pass.
Primary
Return
N.B.: The pump, the system by-pass, the system filter and
the one-way valve of zone 1 are supplied as per standard,
while the others are included in the zone systems connection
kit (optional).
6
R
7
M
5
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Head (m H2O)
Head (kPa)
Head available at zone 1 (standard) with by-pass inserted
The use of the pump positioned downstream from the hydraulic manifold allows to provide a high system flow rate.
The graphics below represent the trend of the head available
to zone 1 system (standard), depending on pump speed and
with the by-pass inserted between flow and return.
A
B
C
Flow rate Litres/h
A - Head available to the system with the standard pump (1st zone) at maximum speed
B - Head available to the system with the standard pump (1st zone) at speed 4,5 (factory setting)
C - Head available to the system with the standard pump (1st zone) at speed 3
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HERCULES Condensing functioning with 2 or 3 additional homogeneous zones (optional)
(configuration with high temperature zones kit).
STORAGE TANK
COILS
RETURN
STORAGE TANK
COILS
FLOW
Any division of the zone system (2 or 3) requires the assembly
of a relevant kit inside the casing, which envisions the use of
the zones management board (21) (see "Digital zones board"
functioning) and additional pumps to be used (max 2) with
that mounted as standard.
With the installation f these kits, the pumps (7 and 10) are
connected to the hydraulic manifold (1) (return) and to the
respective system flow pipe (flow) into which the primary
circuit water is introduced directly.
The return pipes of zones 2 or 3 are fitted tot he same hydraulic manifold (1) connected to the primary heat exchanger
return.
The functioning of each pump (7 and 10) depends on the
functioning request of the respective room thermostats (or CAR
for zone n. º 1) connected to the zones control unit (21).
For every additional zone the lit includes a pump, a system bypass (9 and 12) and a one-way valve (8 and 11) to be inserted
into the system flow pipe.
21
10
7
11
8
12
9
RA3
MA3
RA2
MA2
RA1
MA1
N.B.: Regarding the wiring diagram, settings, signals, etc. see
the “Zones digital control unit" technical sheet.
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Head (m H2O)
Head (kPa)
Head at the other additional high temperature zones.
The use of several pumps positioned downstream from the
hydraulic manifold allows to provide a high system flow rate.
The graphics below represent the trend of the head available
to system zones 2 and 3 at high temperature, depending on
pump speed and with the by-pass inserted between flow and
return.
A
B
C
Flow rate Litres/h
A - Head available to the additional zones (2nd and 3rd zone) at maximum speed
B - Head available to the additional zones (2nd and 3rd zone) at speed 4,5
C - Head available to the additional zones (2nd and 3rd zone) at speed 3
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Functioning with mixed systems (as per standard for HERCULES Condensing ABT, optional for
HERCULES Condensing)
(configuration with Low Temperature Kit).
STORAGE TANK
COILS
RETURN
STORAGE TANK
COILS
FLOW
The coupling to a mixed system divided into two zones envisions the installation of the "low temperature kit" inside the
casing.
The assembly of this kit leads to the use of a three-way mixing
valve (7), a zone management board (21) (see "Zones digital
control unit" functioning) prepared for control of the valve and
the pump (10), a system by-pass (13) and one-way valve (9)
to be inserted into the system return pipe.
Thanks to this system, the boiler can serve two zones operating at differentiated temperatures; a high temperature zone
(example radiators) and a low temperature zone (example floor
radiating panels).
21
10
7
9
high temperature” zone (zone 1 already standard).
This portion of circuit is envisioned to operate at an ideal
temperature for radiator plants, fan coils etc.
It is served by the standard pump and its temperature is adjusted by acting on the boiler control panel.
RB1
MB1
RA1
MA1
“low temperature” zone (zone 2).
This portion of circuit is envisioned to operate with floor
panel systems.
It is served by a pump (10) which, via a motorised 3-way
mixing valve (7), introduces water into the system at constant
temperature.
To allow this, the 3-way valve (7) is controlled by a P.C.B.
(21) that varies the position depending on the pre-selected
temperature (from 25°C to 50°C).
This setting is made on the boiler control panel.
The temperature of the flow water is obtained by mixing the
high temperature circuit flow water and the low temperature
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circuit return water in variable quantities according to necessity, (see hydraulic diagram).
The control of the correct mixing is entrusted to an NTC probe
(12) connected to the zones control unit (21).
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N.B.: Regarding the wiring diagram, settings, signals, etc. see
the “Zones digital control unit" technical sheet.
A
Head (m H2O)
Head (kPa)
Head available at the additional low temperature zone.
In functioning condition with mixed systems, the use of several
pumps guarantees a greater total flow rate to the system.
The graphics below represent the trend of the head available to
the low temperature zone system, depending on pump speed
and with the by-pass inserted between flow and return.
B
C
Flow rate Litres/h
A - Head available to the additional zones (2nd zone) at maximum speed (standard for HERCULES Condensing ABT)
B - Head available to the additional zones (2nd zone) at 4,5 speed (standard for HERCULES Condensing ABT)
C - Head available to the additional zones (2nd zone) at 3 speed (standard for HERCULES Condensing ABT)
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HERCULES Condensing functioning with mixed systems with 2 additional mixed zones
(optional)
(configuration with Low Temperature Kit).
STORAGE TANK
COILS
RETURN
STORAGE TANK
COILS
FLOW
The division of the mixed system into three zones requires the
assembly of a relevant kit inside the casing, which envisions
the use of the zones management board (21) (see "Digital zones
board" functioning), two additional pumps to that already
mounted as per standard (10 and 17), two 3-way mixing valves
(7 and 14), two system by-passes (13 and 20) and two one-way
valves (9 and 16) to be inserted into the system return pipes.
Thanks to this system, the boiler can serve three zones operating at differentiated temperatures; a high temperature zone
(example radiators) and two low temperature zones (example
floor radiating panels).
21
17
14
10
7
16
20
13
MB2
RB1
MB1
RA1
MA1
“low temperature” zone (zone 2).
This portion of circuit is envisioned to operate with floor
panel systems.
It is served by a pump (10) which, via a motorised 3-way
mixing valve (7), introduces water into the system at constant
temperature.
To allow this, the 3-way valve (7) is controlled by a P.C.B.
(21) that varies the position depending on the pre-selected
temperature (from 25°C to 50°C).
This setting is made on the boiler control panel.
The temperature of the flow water is obtained by mixing the
high temperature circuit flow water and the low temperature
circuit return water in variable quantities according to neces-
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RB2
“high temperature” zone (zone 1 already standard).
This portion of circuit is envisioned to operate at an ideal
temperature for radiator plants, fan coils etc.
It is served by the standard pump and its temperature is adjusted by acting on the boiler control panel.
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sity, (see hydraulic diagram).
The control of the correct mixing is entrusted to an NTC probe
(12) connected to the zones control unit (21).
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The control of the correct mixing is entrusted to an NTC probe
(12) connected to the zones control unit (21).
N.B.: Regarding the wiring diagram, settings, signals, etc. see
the “Zones control unit" technical sheet.
Head available at the low temperature zones.
In functioning condition with mixed systems, the use of several
pumps guarantees a greater total flow rate to the system.
The graphics below represent the trend of the head available
to system zones 2 and 3 at low temperature, depending on
pump speed and with the by-pass inserted between flow and
return.
A
Head (m H2O)
Head (kPa)
“low temperature” zone (zone 3).
This portion of circuit is also envisioned to operate with floor
panel systems.
It is served by a pump (17) which, via a motorised 3-way mixing valve (14), introduces water into the system at constant
temperature.
To allow this, the 3-way valve (14) is controlled by a P.C.B.
(21) that varies the position depending on the pre-selected
temperature (from 25°C to 50°C).
This setting is made on the boiler control panel.
The temperature of the flow water is obtained by mixing the
high temperature circuit flow water and the low temperature
circuit return water in variable quantities according to necessity, (see hydraulic diagram).
B
C
Flow rate Litres/h
A - Head available to the additional zones (2nd and 3rd zone) at maximum speed
B - Head available to the additional zones (2nd and 3rd zone) at speed 4,5
C - Head available to the additional zones (2nd and 3rd zone) at speed 3
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DHW circuit.
The DHW circuit is affected every time it is necessary to take
the temperature of the water contained in the storage tank to
the desired temperature (15) and is measures using the DHW
NTC probe (14).
This can take place in the case of a domestic hot water withdrawal or to restore the losses due to heat loss.
(see electric 3-way valve functioning) leads to the closure of the
hydraulic manifold return pipe and the simultaneous opening
of the passage towards the storage tank coil (13).
In this way circulation inside the CH system is prevented,
while it is allowed in the coil (13), which allows the cold water to absorb the heat contained in the primary circuit water
through its walls.
The CH phase is excluded in this phase over which the production of DHW has priority.
Operation.
Following a DHW request, the integrated P.C.B. starts the
boiler pump (1) and powers the electric 3-way valve motor
(2).
The consequent shifting of the valve into the DHW position
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Storage tank.
exceeded (8 bar).
It is mounted on the domestic cold water inlet manifold unit
after the DHW one-way valve.
It is a 120 litre stainless steel storage tank with coil and totally
insulated using self-extinguishing polystyrene.
It has an external casing enclosed in the upper part by a flange
fixed using 12 screws which, can be removed if necessary.
This allows the extraction of the two coils (13) connected
in series to allow assembly of the solar panels kit (see “solar
panels kit” functioning). These are made up from a concentric
propeller-shaped stainless steel pipe, through the walls of which
heat exchange takes place between the primary circuit hot water
and the water contained in the storage tank.
This allows to keep the storage tank water at a constant temperature and in the presence of a withdrawal guaranteed the
instant production of DHW.
If necessary, the storage tank can be extracted frontally by making it pass on the two "slides" (18) on which it rests.
Its regular functioning and its integrity are guaranteed by the
following devices:
DHW expansion vessel (5).
It compensates the volume variation consequent of heating of
the water contained in the storage tank.
It is connected to the cold water inlet and has a pre-load pressure of 3.5 bar with capacity of 5 litres.
Anode (12).
It is inserted into the storage tank and protects it from the
action of galvanic currents. It is activated at the pump probe
pipe (17) present on the upper flange.
Polyphosphate dispenser (optional).
Prevents the deposit of lime scale on the walls of the coil.
The kit is mounted inside the casing, connecting it to the
domestic cold water inlet.
It can be accessed by opening the lateral door.
11
10
5
Cold water inlet unit (19).
It is situated at the cold water inlet and is fitted to the expansion vessel (5) and the system filling valve (3).
As well as an 8 bar valve (10) that prevents the safety pressure
in the storage tank from being exceeded, it includes:
- one filter, one flow limiter da 30 l/min and one one-way
valve (see hydraulic circuit part. “9”) to prevent the consequent
pressure increase due to heating of the DHW causes return
towards the water network.
AF
12
3
13
Storage tank draining valve (16).
It is a draining valve with hose union fitting for emptying the
storage tank in the case of maintenance or internal inspection.
NTC domestic hot water probe (14).
It allows the integrated P.C.B. to detect the temperature of the
water contained in the storage tank.
It is fixed to the external wall of the storage tank and is inserted
inside an immersion sample point.
16
Safety valve (10).
Prevents the safety pressure in the storage tank from being
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17
Pump kit (optional).
It allows the connection to any DHW recirculation system.
The kit includes a pump (11) that is housed inside the casing
with relative connection pipe to the template after having
removed the relative anode-support cap.
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Functioning with solar panels kit (optional).
(6) detects a temperature lower than that requested and than
that of the water heated using the panels.
If the intake of solar energy is not sufficient to satisfy requirements (prolonged withdrawals, little insulation, etc) and the
boiler DHW NTC probe (14) measures a temperature lower
than that set, the burner is started and the upper coil (4)
guarantees the instantaneous production of DHW (24,000
kcal/h).
Solar panel circuit leaks graphics.
The solar panels circuit inside the boiler (coil and connection
pipes) have the head losses represented in the graphics at the
side, which must be taken into consideration for the dimensioning of the pump (2).
AC
AF
MP
Boiler
circuit flow
RP
Boiler
circuit return
14
MP
4
RP
The two coils (4-5) in the storage tank are set-up vertically one
above the other and, in standard configuration, are connected
hydraulically in series (see DHW hydraulic diagram) in a way
that their total surface guarantees heat exchange of all of the
power supplied by the appliance.
Their dimensions differ so that, in normal working conditions,
the upper one (4) exchanges 24,000 kcal/h and the lower one
(5) 4,000 kcal/h.
The installation of the “solar panels kit” envisions the separation of the two coils and connection of that set-up in the
lower part of the storage tank (5) to the MP (panels flow) and
RP (panels return) connections of the boiler connection unit.
In this way, while the other coil (4) remains connected to the
boiler circuit, this is fitted to an external solar panels system
(not supplied in the kit).
The application of the above principle diagram, envisions
the use of a control unit (3) that detects the temperature of
the storage tank water via a sensor (6) to be positioned in the
bulb-holder present on the lowest storage tank. This leads to
shifting the DHW NTC probe (14) in the immersion sample
point present on the highest storage tank.
The control unit (3) controls the pump (2) when the sensor
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Resistance (kpa)
6
Flow rate litres/h
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Air-gas circuit.
Gas valve.
The 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.
The calibration of the ratio between the air and gas pressures
are carried out on the valve (off-set) (see gas regulations).
Electric coils (4).
There are two ON-OFF coils that are powered with direct
current by an integrated P.C.B. when the burner must be
ignited.
They are connected in series and powered through a connection 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).
Thanks 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 efficiency.
The air-gas ratio calibration can be performed using the off-set
adjusting screws.
This is necessary only when, after having performed flue
analysis, incorrect combustion parameter values are detected
(see air-gas ratio regulation).
The circuit consists of a total premix combustion system composed 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.
Operation.
The 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).
The 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”.
The gas is injected at the entry of the Venturi pipes (3) through
a nozzle (4), where the premix starts with the combustion
agent air.
The mixture obtained in this way is ignited on the surface
of the cylindrical burner (8) by the discharge of the ignition
electrodes (9).
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3
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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 (duty-cycle) ratio.
Its speed is adjusted (from about 1100 to about 5100 rpm)
depending on the power requested and is controlled using a
sensor with Hall effect, which detects the number of revs.
The fan withdraws the combustion agent air through a plastic
pipe (1), which contributes to reducing the noise and optimises
burner ignition.
The variation of the air flow rate that is 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.
1
Venturi.
The Venturi pipe (1) is inserted into a sealed pipe, inside which
the combustion agent air and the gas are mixed.
The 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).
The passage of air in the pipe creates a depression (“Venturi
effect”) which, through the 4 holes (3) present at its base, allow
to “drag” the gas inside and to mix it with the air.
The nozzle (2) has a different 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 flow rate.
There 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.
AIR
4
5
Burner.
It is a cylindrical burner (5) made up from 2 concentric sheet
steel sections, appropriately perforated and built using special
steel that is particularly resistant to high temperatures and
corrosion.
It is inserted inside the condensation module, in a sealed
combustion chamber closed by a flange (4) onto which the
burner is fixed, which in the meantime guarantees its direct
connection to the air-gas mixing pipe (6).
The premixing, the lack of secondary air and the construction
features of the burner ensure high combustion efficiency and
particularly reduced pollutant emissions (see technical data
depending on the model).
The material's high resistance to temperature, allows to work
with a very low flame at a minimum power of:
1
8
9
7
2
6
3
GAS
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P1
P2
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HERCULES Condensing 26 2 E = 4.7 kW (4.042 kcal/h) (20
% of the nominal output).
HERCULES Condensing 32 2 I = 6.9 kW (5.934 kcal/h) (20
% of the nominal output).
Ignition takes place by means of an integrated P.C.B. that
controls the ignition (7) and detection electrodes (9).
AIR
4
Ignition electrodes (7).
They are controlled by an igniter (activated by the integrated
P.C.B.) that causes an electrical spark between the two electrodes on which, on contact, the air-gas mixture ignites.
The electrode (8) has no ceramic insulation and is connected
directly to earth (blind electrode).
They are positioned on the right side of the burner and fixed
onto the flange (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).
1
5
8
9
7
2
Detection electrode (9).
It is controlled by the integrated P.C.B. and detected burner
ignition.
It also acts as a flue 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 filling with water when there
is difficulty draining condensate (trap blocked, etc).
It is fixed onto the left side of the burner flange (4).
6
3
P1
P2
GAS
Note: In the case of ignition block, check the distances of the
ignition and detection electrodes keeping to the heights stated
in the figure below.
IGNITER DRAWING
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Disassembly of combustion circuit main components.
3
4
2
12
11
A
8
14
13
10
6
17
18
1
7
9
15
3
16
5
A
19
23
24
9
25
7
26
26
20
21
26
22
Before disassembling the components, make sure the gas cock
is closed.
Loosen the tightening bolts on the system flow and return pipes
and of the condensate discharge pipe positioned in the lower
part of the module. Loosen the two screws (7) and (9) that fix
the condensation module to the support back using brackets
and sheet steel. Loosen the screws (2) positioned above the flue
hood and push the stub pipe down (4) in a way to release the
flue hood from the flange with sample points.
N.B.: when restoring the connection between the flue hood
and flange with sample points, check the status of the two
flue gaskets (3).
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 and 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.
Important: in the 32 kW model functioning with natural
gas (G20) the gas nozzle (19) is not present and must not be
installed.
Flue hood disassembly from the condensation module.
Loosen the three nuts (26) that fix the flue hood to the rear
of the condensation module (8) and then separate the hood
from the module.
N.B.: when restoring the connection between condensation
module and flue hood, pay particular attention to the correct
positioning of the lip gasket (6) and the containment gasket
(5).
Disassembly and replacement of ignition and detection
electrodes.
Loosen the two fixing screws on the ignition electrodes unit
(22). Loosen the two fixing screws on the detection electrode
(14).
N.B.: on re-mounting the ignition electrodes, make sure that
the gasket is also re-mounted correctly. For the detection electrode check re-mounting of the O-ring. For both electrodes
scrupulously follow the minimum heights stated in the drawing
in the page at the side.
Burner disassembly (10).
Loosen the gas pipe (16) and unscrew the two screws (21) that
fix the manifold to the fan, and then loosen the 6 blind nuts
(15) that block the gas manifold flange to the condensation
module (8). To replace the burner gasket in graphite (11)
loosen the 4 screws (24).
N.B.: on re-mounting the burner unit/manifold pay particular
attention to the correct positioning of the cord packing (23),
gas gasket (25), gas pipe gasket (16) and gasket between fan
flange and gas collector (13).
Disassembly of the condensation module (8) and flue
hood (1).
Before carrying out the operation drain off all water present
inside the module.
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Air-gas adjustments.
The calibration of the total premix combustion system, when
necessary envisions the adjustment of the nominal heat output
and the air-gas ratio (off-set).
The 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.: The nominal output must also be adjusted during
the initial check.
Adjustment of nominal and minimum heat output.
The availability of maximum output is linked to the length of
the intake and exhaust pipes which, increasing, slightly reduces
the amount (flow rate) of inlet air and consequently also la
pressure of the burnt gas.
The 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 flue kit with greater head losses requires
a check and possible adjustment of the nominal output according to the table give below.
Below find the default settings present on the boiler (length
1 m):
P1
HERCULES Condensing 26 2 E
G20:
GPL:
MIN. MAX.
5060 (rpm)
4400 (rpm)
G20:
GPL:
MIN SPEED
1240 (rpm)
1440 (rpm)
G20:
GPL:
MAX. TIMER
4700 (rpm)
4100 (rpm)
G20:
GPL:
MIN. TIMER
1240 (rpm)
1140 (rpm)
P2
ing to the nominal output.
- to modify the maximum number of fan revs. enter the
"Configurations" menu and inside the “BOILER PAR."
item, modify the value of the "MAX SPEED" parameter as
stated in the heat output adjustment table, until the pressure
value (P1-P2) corresponding to the maximum heat output
is obtained.
- N.B.: for the 26 2 E version, the maximum number of revs.
in CH mode is lower than the absolute maximum speed.
- to modify the maximum number of fan revs. in CH mode,
enter the "Configurations" menu and inside the "BOILER
PAR." item modify the value of the "MAX CH" parameter
as stated in the heat output adjustment table, until a pressure
value is obtained (P1-P2) that corresponds to the maximum
output in CH mode.
HERCULES Condensing 32 2 I
G20:
GPL:
MIN. MAX.
4700 (rpm)
4200 (rpm)
G20:
GPL:
MIN SPEED
1260 (rpm)
1160 (rpm)
G20:
GPL:
MAX. TIMER
4700 (rpm)
4200 (rpm)
G20:
GPL:
MIN. TIMER
1260 (rpm)
1160 (rpm)
The operation must be performed as follows and with respect
to the values stated in the heat output adjustment table:
- connect a differential manometer to the pressure points P1
(positive point) and P2 (negative point) found in the upper
part of the sealed chamber (iin this way the pressure difference
at the ends of the Venturi pipes (P1-P2) is detected and a pressure signal is measured that corresponds to the real flow rate of
the air-gas mixture at the burner).
- start the boiler in the chimney sweep phase by pressing
key "C" and then check maximum fan speed (with burner
ignited);
- after about 5 minutes check and, if necessary, modify the
maximum number of fan revs. in CH mode and in DHW
mode until a pressure value is obtained (P1-P2) correspond-
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Regulation of the air-gas ratio (off-set).
The correct regulation of the air-gas ratio (1:1) takes place
in the factory and must be retouched only 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, flue 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:
HERCULES Condensing 26 2 E
CO2 at nominal output
(central heating)
CO2 at minimum output
(central heating)
G 20
9,40% ± 0,2
8,90% ± 0,2
G 30
12,10% ± 0,2
11,80% ± 0,2
G 31
10,70% ± 0,2
10,20% ± 0,2
Key:
1 - Gas valve inlet pressure point
2 - Gas valve outlet pressure point
3 - Off-Set adjustment screw
12- Outlet gas flow rate regulator
HERCULES Condensing 32 2 I
CO2 at nominal output
(central heating)
CO2 at minimum output
(central heating)
G 20
9,40% ± 0,2
8,90% ± 0,2
G 30
12,30% ± 0,2
11,90% ± 0,2
G 31
10,50% ± 0,2
10,30% ± 0,2
By turning in a clockwise direction the CO2 value decreases,
by turning in an anti-clockwise direction, it increases.
Gas transformation.
The adaptation to the type of gas different to that for which
the boilers are prepared as per standard is performed using the
relevant kit (methane or LPG).
The transformation consists in the replacement of the gas nozzle 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 off-set signal (see air-gas ration
regulation).
To carry out the control correctly and, if necessary, regulate
the air-gas ratio, proceed as follows:
VK 8115 gas valve
Calibration of the minimum CO2.
- start the boiler in chimney sweep functioning mode without
withdrawing DHW and adjust the C.H. temperature selector, present on the control panel, to minimum.
- 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 minimum heat
output (see table);
- if the values are incorrect, take them within the limits by
acting on the off-set adjusting screws (3) of the gas valve.
By turning in a clockwise direction the CO2 value decreases,
by turning in an anti-clockwise direction, it increases.
Calibration of the maximum CO2.
- take the C.H. temperature selector, present on the control
panel, to maximum and check the correspondence of the
carbon dioxide (CO2) value measured with that indicated
in the table regarding the nominal heat output (see table).
- if the values are incorrect, take them within the limits by
acting on the off-set adjusting screws (12) of the gas valve.
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Flue circuit.
Flue exhaust
1
13
12
Gas
Air
Exhaust
Condensate
10
4
Operation.
The functioning of the fan positioned at the entry of the airgas mixing pipe, guarantees the fan-assisted expulsion of the
combustion products (5).
These directly hit the first three elements (26 2 E) or 4 (32 2
I) 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 flow of combustion products to the outside
of the module.
In this way the flue gases, before entering the condensation
chamber (2), hit the fourth (26 2 E) or 5th (32 2 I) element
(3) of the heat exchanger inside which primary circuit return
water runs.
This cools the combustion products further and makes their
condensation easier before escape from the flue hood (1).
The water condensate formed inside the heat exchanger, in
the flue hood and also in the evacuation pipes flows into the
lower part of the module from where, before being discharged,
is conveyed into a trap (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.
11
A flue safety thermostat is inserted onto the condensation
module (12), to protect the flue hood (1) and which intervenes
when the temperature detected on the condensation module
exceeds 110 °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 combustion products, which could occur following obstruction of the
evacuation pipes.
The 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.
This, however, prevents the draining of combustion products
into the sewers.
On commissioning combustion products may escape from
the exhaust pipe (11) which disappear after a few minutes
of functioning when the condensate has reached a sufficient
height. If this should take too long, fill the siphon with water
manually (4).
Flue hood (1).
It is connected to the rear part of the condensation module
and conveys the combustion products towards the drain fitting
present in the upper part of the appliance.
It is affected by the passage of combustion products and water
condensate formed inside it or in the exhaust pipes.
It is constructed in plastic, resistant to the corrosive effects of
the condensate and can work to a temperature of 130 °C (max.
flue temp with flow 85 °C = 78 °C).
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Intake and exhaust systems.
(see intake and exhaust terminals instructions).
The HERCULES Condensing boiler is prepared for connection
to the relevant coupling intake/exhaust pipes and can only be
installed in the home in the following configurations:
- open chamber and fan-assisted circulation (type B23) using
an appropriate intake kit (optional);
- with sealed chamber and fan-assisted circulation (type C)
using the vertical or horizontal concentric kits or the Ø 80/80
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).
The generators with condensation technology must be installed
using the specific series of intake and exhaust pipes, which have
been designed to be coupled exclusively to the Immergas
condensing boiler.
The “GREEN SERIES” flue kit is made in plastic (PPS = selfextinguishing polypropylene) suitable for resisting the corrosive
action of the acid condensate.
4
3
2
1
Configuration with open chamber and fanassisted circulation (type B23) for indoor installation (see figure at the side).
Using a specific kit, the boiler can be installed in the open
chamber and fan assisted configuration (type B23), thus allowing the intake of the combustion agent air directly from
the environment.
Intake.
Intake takes place by making use of the hole present in the upper part of the sealed chamber on which, after having removed
the cap present and after having placed the relevant gasket (1),
the relevant terminal support is mounted (2) onto which the
intake terminal is fixed (3).
Exhaust.
The 80 mm diameter exhaust pipe fitting is obtained using the
flange used in the divided systems.
Flue exhaust takes place through the specific pipes with diameter of 80 (4) in an individual flue or directly to the outside.
To prevent condensate problems, the exhaust pipe must be
limited to 30 straight metres.
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Configuration with sealed chamber and fanassisted circulation (type C).
Exhaust.
60/100 push-fitting horizontal concentric kit.
The exhaust pipe in PPS (Ø 60 mm) is inserted inside the
aluminium exhaust pipe (Ø 100 mm).
Connection to the boiler takes place using a 90º bend (2),
which can be turned in all directions and by using necessary
extensions can be connected to the relevant intake and exhaust
terminal (3).
The maximum total length allowed beyond the first bend (2)
is 12.9 straight horizontal metres.
The connection to the flue exhaust pipes takes place using a
flange (2) or a flanged curve to fix to the fitting (4) present on
the upper part of the sealed chamber, placing a shaped gasket
between them (1).
The flange differs according whether the divided or concentric
system is used.
In the first case the passage for intake of the combustion agent
air (5) is closed while in the second case it is made use of.
2
Intake.
3
4
5
1
Using the divided system, connection to the intake pipes takes
place in the same way as the exhaust pipes, being connected
to the hole with diameter of 80 mm (3) present in the upper
part of the sealed chamber.
If co-axial pipes are used, intake takes place by making use of
the concentric hole outside of the exhaust fitting (5).
Intake and exhaust kit.
The kits with relative accessories allow the use of two concentric systems, one divided system and three specific systems for
ducting (Ø 60 rigid, Ø 80 rigid or Ø 80 flexible).
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
(see boiler instruction book).
Coupling between the various accessories (bends, extensions,
terminals) is the push-fitting type and sealing is assured by
relevant silicon lip seals gaskets in EPDM peroxide resistant
to the action of the condensate.
4
60/100 push-fitting vertical concentric kit.
The exhaust pipe in PPS (Ø 60 mm) is inserted inside the
aluminium exhaust pipe (Ø 100 mm).
Connection to the boiler takes place with a 60/100 concentric
flange (2) which, by means of the necessary extensions, is connected to the relevant 60/100 intake and exhaust terminal with
aluminium tile (4).
The maximum length allowed is 14.4 straight vertical metres.
5
2
5
1
7
4
6
3
3
2
1
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Push-fitting separator kit 80/80.
The intake and exhaust pipes (6 and 9) are both in PPS and
have a diameter of 80 mm.
Connections to the boiler take place using the two appropriate flanges that allow exhaust (4) from the central fitting and
intake (3) from one of the two lateral holes with respect to
the central one.
The maximum length allowed (intake+ exhaust) is 36 straight
horizontal metres and 41 straight vertical metres.
System for ducting 60 rigid.
It is a kit that allows ducting Ø 60 mm of existing flues/
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 fitting
with gaskets in EPDM peroxide, also fastening using pipe
clamps (4).
These must be alternated with clips with spacer fins (3), which
allow centring of the exhaust pipe inside the old flue.
The system can be inspected through the hatch (6) positioned
at the mouth of the fitting with the boiler flue 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.
5
7
A
9
5
6
4
3
1
2
7
B
8
1
2
3
2
4
6
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System for ducting 80 rigid.
It is a kit that allows ducting Ø 80 mm of existing flues/
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 fitting
with gaskets in EPDM peroxide, also fastening using pipe
clamps (4).
These must be alternated with clips with spacer fins (3), which
allow centring of the exhaust pipe inside the old flue.
The system can be inspected through the hatch (6) positioned
at the mouth of the fitting with the boiler flue evacuation
pipe.
Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust)
with intake grid, the maximum length allowed is 30 straight
vertical metres.
System for ducting 80 flexible.
It is a kit that allows ducting Ø 80 mm of existing flues/
chimneys/technical slots to be used exclusively with a unique
Immergas condensing appliance.
Fit an 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 fins every now and again
(2), which allows the centring of the exhaust pipe inside the
old flue.
The system can be inspected through the hatch (5) positioned
at the mouth of the fitting with the boiler flue evacuation
pipe.
Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust
+ two variations of the vertical tract)with intake grid, the maximum length allowed is 30 straight vertical metres.
1
1
2
3
2
2
3
4
2
4
6
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Brown
Blue
Grey
Black
Brown
Blue
D. h.w
Common
Brown
Blue
Orange
Black
Red
Grey
Grey
Red
Red
Blue
Blue
Black
Black
Brown
Blue
White
White
Black
Red
Pink
Orange
White
Black
Red
Blue
Storage tank
function
jumper
White White CH
Electric circuit.
FAN
SPEED
IMG BUS
LINK
Key:
A4
A10
B1
B2
B4
CAR
-
-
-
-
-
-
E1
E2
E4
E6
F1
G2
-
-
-
-
-
-
Supply
230 VAC
50 Hz
Super CAR
remote control
(Optional)
SIGNAL
STATE
Display board
Pump relay board
Flow probe
Domestic hot water probe
External probe (optional)
Comando Amico Remoto remote control
(optional)
Ignition electrodes
Detection electrode
Safety thermostat
Flue safety thermostat
Phase fuse
Igniter
M1
-
M2
-
M20 -
M30 -
R9
-
S5
-
S20 -
Super CAR
-
T1
-
X40 -
Y1
-
Z1
-
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Boiler pump
CH pump
Fan
Three-way valve
Return probe resistance
System pressure switch
Room thermostat (optional)
SUPER Comando Amico Remoto remote control
(optional)
Boiler board transformer
Room thermostat jumper
Gas valve
Anti-jamming filter
The control and safety devices partly operate at network voltage
(230 V AC) and partly at low voltage.
The electric circuit of the HERCULES Condensing is completely interlocked to a P.C.B. with integrated microprocessor,
which controls the functions of the generator.
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230 V AC circuit.
Safety devices and controls.
Detection electrode
(E2)
Line fuse
(F1)
Anti-jamming filter
(Z1)
It detects burner ignition from where the flame is hit.
It is connected to the detection circuit of the integrated P.C.B.
It cuts off the power supply to the circuit when the current absorbed
exceeds 3.15A.
It is inserted onto the integrated P.C.B.
Fuse
3,15 AF 250 V
It is a filter connected to the power supply line of the pump relay board, which allows to
limit the effects of electromagnetic interference.
N.B.: in the HERCULES Condensing ABT model it is positioned on the power supply
circuit of the zones digital control unit (supplied as per standard).
Loads.
Igniter
(G2)
It is controlled by the integrated P.C.B. when burner ignition is requested.
It makes the ignition spark.
It is placed on the left side of the condensation module.
Ignition electrodes
(E1)
They are controlled by the igniter that causes an electric spark between their ends and on
the contact with which the air-gas mix ignites.
Boiler pump
(M1)
It is powered by the integrated P.C.B. when there is a DHW, CH or anti-freeze request.
Allows circulation in the primary circuit.
CH pump
(M2)
Integrated P.C.B.
Pump relay board
(A10)
(NOT present on HERCULES Condensing ABT)
Three-way valve
(M30)
STHCkW ed 04/09
It is powered by the integrated P.C.B. when there is a CH or anti-freeze request.
Allows circulation in the CH system.
The board is always powered independently from the position of the button
tegrated P.C.B. functioning).
(see in-
By the diversion of the K1 relay contact, it allows to power the CH pump (M2).
It allows the diversion of the water flow of the primary circuit to the storage tank coil
and vice versa.
It is powered by the integrated P.C.B.
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Low voltage circuit.
Safety devices and controls.
Comando Amico Remoto
remote control
(CAR) (optional)
Allows long distance control of the generator (SUM/WIN selector
switch, temperature adjustment and indication, alarms display, reset,
etc.) and acts as weekly timer thermostat.
If the CAR is installed the pre-existing X40 jumper must be
eliminated.
See Comando
Amico Remoto
remote control
functioning
(CAR)
System pressure switch
(S5)
When the pressure of the boiler circuit is below 0.3 bar it determines
burner switch-off.
Contact in
Shut-off
Detects the external temperature and allows the integrated
P.C.B. to vary the flow temperature depending on the external
temperature.
PTC probe
1 kΩ 25 °C
Flow probe
(B1)
Allows the integrated P.C.B. to detect the temperature of the primary circuit flow water.
Its breakage (signalled by relative anomaly) blocks burner functioning
both in central heating and domestic hot water modes.
It is positioned at the outlet of the main heat exchanger.
NTC probe
10 kΩ 25 °C
Return probe resistance
(R9)
It is a resistance that simulates the presence of the system return
probe. It must always be present.
Factor
2,2 kΩ 1/4 W
Domestic hot water probe
(B2)
It allows the integrated P.C.B. to detect the temperature of the
exiting domestic hot water.
Its breakage (signalled by relative anomaly) allows the boiler to
continue working in the central heating mode.
It is inserted into a hole made on the outside wall of the storage
tank to which it is fixed.
NTC probe
10 kΩ 25 °C
Super CAR
(optional)
Allows long distance control of the generator (SUM/WIN functioning, temperature adjustment and indication, programs and
parameters setting alarms display, reset, etc.) and acts as weekly timer
thermostat.
If the Super CAR is installed the pre-existing X40 jumper must
be eliminated.
See Super CAR
functioning
Zones digital control unit
IMG BUS connection
(optional)
It is mounted on the front inside the boiler in the top right part.
In the case of assembly of the additional zones management kits,
the board controls all electric devices connected to it (e.g. motorised
mixing valves, pumps, NTC probes, safety thermostats etc).
N.B.: in the HERCULES Condensing ABT model, the zones
digital control unit is supplied as per standard.
See functioning
technical sheet
Zones digital
control unit
External probe
(B4) (optional)
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Room thermostat (S20)
(external optional)
Enables functioning in CH mode when the room temperature is
below that requested.
If the CAR or Super CAR is installed, the room thermostat must
be disconnected without restoring the pre-existing jumper X40.
Contact in
Shut-off
Safety thermostat
(E4)
When the safety temperature is exceeded (100 °C) remove the
power supply to the main coils of the gas valve.
It is positioned on the flow pipe at the outlet of the primary heat
exchanger.
Klixon thermostat
with normally
closed contact
Flue safety thermostat
(E6)
When the flue safety temperature is exceeded (110 °C) remove the
power supply to the main coils of the gas valve.
It is positioned on the condensation module.
Klixon thermostat
with normally
closed contact
Loads.
Display board
(A4)
IMG BUS outlet
Gas valve (Y1)
(main coils)
Fan
(M20)
STHCkW ed 04/09
Buttons and selector switches can be used to RESET the boiler, set, modify and memorise
boiler functioning values.
By means of the display and according to the buttons selected it is possible to display the
functioning values and error codes that have intervened on the boiler.
It allows the connection of electronic devices, e.g. Immergas zones digital control unit.
It is powered (24 V DC) by the integrated P.C.B. when burner ignition is necessary.
Allows the passage of gas to the burner.
Guarantees the flow of air in the sealed chamber and the escape of combustion products.
It is powered by the integrated P.C.B.
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Electric circuit.
Fase riscaldamento.
SAFETY EXTRA-LOW
VOLTAGE CIRCUIT
SIGNAL
STATE
LOGIC-CONTROLS MICROPROCESSOR
Central heating
Domestic hot water
Super CAR remote
control (Optional)
IMG BUS
link
RELAY BOARD (Optional)
Link for
VIRGILIO palmtop
Microprocessor
programming connector
Storage tank
function
jumper
CH ON
Operating with room thermostat.
Operation with Remote Control.
By pressing the main button ( ) boiler activation is enabled.
By using button (A) to select functioning in (Winter) functioning is enabled in CH mode.
On closure of the room thermostat contact (S20) and if the
system pressure switch contact (S5) is closed (pressure detected
in the primary circuit higher than minimum value) the integrated P.C.B. powers the pump (M1) by means of relay K2,
after which, by diversion of the K4 relay contact it powers the
motor (M) of the 3-way valve (M30). This functions until the
end run switch "1" opens when the CH position is reached.
This leads to the power supply of relay K1 positioned on the
pump relay board (A10) and the consequent power supply of
the CH pump (M2).
If the temperature detected by the NTC flow probe (B1) is
below the setting made on the control panel using the CH
temperature selector, the integrated P.C.B. powers the fan
(M20) and manages the speed.
With the consent of the safety thermostat (E4) and the flue
safety thermostat (E6) and the fan (M20) reaching the "validate
ignition" speed, the integrated P.C.B. allows to start the ignition cycle by controlling, first the ignition electrodes (E1) by
means of the K7 igniter relay and then the K3 request relay,
both the coils of the gas valve (Y1).
The ignition of the burner is detected by the integrated P.C.B.
by means of the ionisation electrode (E2).
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In the case of connection to the CAR or Super CAR remote
control, the boiler automatically detects the device and the
( ) symbol appears on the display.
If the conditions detected by the Remote Control (CAR or
Super CAR) request ignition in CH mode (SUM/WINT selector
of the CAR in WINTER pos or Super CAR button working
(Winter), CH temperature adjustment higher than that detected
by the CH flow probe (B1), requested by the programmer clock,
room temperature adjustment higher than that detected)), the
integrated P.C.B. manages the burner ignition cycle as previously described.
N.B.: By pressing the main switch ( ) and taking the boiler
into Stand-by, the CAR will show the "CON" connection error
symbol and the "ERR>CM" error will appear on the Super
CAR. The remote control is kept powered without losing the
memorised programs.
N.B.: Every time switch off occurs when temperature is
reached, the integrated P.C.B. blocks burner functioning in
CH mode for a period of time equal to that set with board
parameters (see integrated P.C.B. functioning).
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Circuito elettrico.
Electric circuit.
SAFETY EXTRA-LOW
VOLTAGE CIRCUIT
SIGNAL
STATE
LOGIC-CONTROLS MICROPROCESSOR
Central heating
Domestic hot water
Super CAR remote
control (Optional)
IMG BUS
link
RELAY BOARD (Optional)
Link for
VIRGILIO palmtop
Microprocessor
programming connector
Storage tank
function
jumper
CH ON
Operation.
By pressing the main button ( ) boiler activation is enabled,
which is enabled for functioning in the DHW phase.
If the temperature detected by the DHW NTC probe (B2),
positioned on the storage tank, is lower than the setting made
on the control panel (or on the CAR or Super CAR if mounted)
and if the contact of the system pressure switch (S5) is closed
(pressure detected in the primary circuit higher than minimum
value), the integrated P.C.B uses the K2 relay to power the
boiler pump (M1), after which by diversion of the K4 relay
contact it powers the motor (M) of the 3-way valve (M30).
This functions until the end run switch "2" opens when the
DHW position is reached.
Successively the integrated P.C.B. powers the fan (M20) and
manages the speed.
With the consent of the safety thermostat (E4) and the flue
safety thermostat (E6) and the fan (M20) reaching the "validate
ignition" speed, the integrated P.C.B. allows to start the ignition cycle by controlling, first the ignition electrodes (E1) by
means of the K7 igniter relay and then the K3 request relay,
both the coils of the gas valve (Y1).
The ignition of the burner is detected by the integrated P.C.B.
by means of the ionisation electrode (E2).
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Integrated P.C.B.
Transformer
Fuse F1
WINTER
end run switch "1" opens when the CH position is reached.
This leads to the power supply of relay K1 positioned on the
pump relay board (A10) and the consequent power supply of
the CH pump (M2).
If the temperature detected by the NTC flow probe (B1) is
below the setting made on the control panel using the CH
temperature selector, the integrated P.C.B. powers the fan
(M20) and manages the speed.
With the consent of the safety thermostat (E4) and the flue
safety thermostat (E6) and the fan (M20) reaching the "validate
ignition" speed, the integrated P.C.B. allows to start the ignition cycle by controlling, first the ignition electrodes (E1) by
means of the K7 igniter relay and then the K3 request relay,
both the coils of the gas valve (Y1).
The ignition of the burner is detected by the integrated P.C.B.
by means of the ionisation electrode (E2).
During the ignition phase the fan works at a speed equal to one
third the maximum set (see heat output adjustment).
Successively the burner goes to the minimum value set by
means of the "MIN CH.*" parameter setting, to then reach
the maximum value set (if requested) by setting the "MAX.
CH" parameter in a determined time from the setting of the
"CH RAMP" parameter.
Successively, flame modulation takes place with reference to the
difference between the temperature set on the boiler control
panel and that detected by the DHW probe (B1).
On exceeding (+5°C) the temperature set, the contact of
relay K2 is opened with consequent burner switch off, whose
switch/on time depends on the setting of the "Ignition timer"
parameter.
Every time the burner switches off the fan functions for
35 seconds and the pump performs post-circulation for 10
seconds.
Inside the control panel the boiler is equipped with a P.C.B.
with integrated microprocessor for control of the appliance's
electric devices, which takes care of linear modulation of
burner power.
The display shows the status and functioning mode of the
appliance, indicating any intervention of the safety devices,
with which it is supplied.
The P.C.B. supplied with all models, whether with storage
tank or instant (HERCULES Condensing, VICTRIX ZEUS
Superior kW, VICTRIX Superior kW Plus, VICTRIX Superior kW) is the same. The different type of boiler functioning is
recognised automatically by means of the appliance's wiring.
The integrated P.C.B. is always powered independently from
the selection made on the main button ( ).
The board carries out a periodical self-check to control its
correct functioning. During functioning in CH mode or with
boiler in stand-by, the function activates every 18 hours from
the last check/powering of the boiler. If functioning in DHW
mode, the self-check starts within 10 minutes after the end f the
withdrawal in progress for the duration of about 10 seconds.
N.B.: during the self-check, the boiler remains off.
Operation.
Central heating request.
By pressing the main button ( ) boiler activation is enabled.
By using button (A) to select functioning in (Winter) functioning is enabled in CH mode.
On closure of the room thermostat contact (S20) and if the
system pressure switch contact (S5) is closed (pressure detected
in the primary circuit higher than minimum value)the integrated P.C.B. powers the pump (M1) by means of relay K2,
after which, by diversion of the K4 relay contact it powers the
motor (M) of the 3-way valve (M30). This functions until the
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DHW request.
Central heating anti-freeze request.
By pressing the main button ( ) boiler activation is enabled,
which is enabled for functioning in the DHW phase.
If the temperature detected by the DHW NTC probe (B2),
positioned on the storage tank, is lower than the setting made
on the control panel (or on the CAR or Super CAR if mounted)
and if the contact of the system pressure switch (S5) is closed
(pressure detected in the primary circuit higher than minimum
value), the integrated P.C.B uses the K2 relay to power the
boiler pump (M1), after which by diversion of the K4 relay
contact it powers the motor (M) of the 3-way valve (M30).
This functions until the end run switch "2" opens when the
DHW position is reached.
Successively the integrated P.C.B. powers the fan (M20) and
manages the speed.
With the consent of the safety thermostat (E4) and the flue
safety thermostat (E6) and the fan (M20) reaching the "validate
ignition" speed, the integrated P.C.B. allows to start the ignition cycle by controlling, first the ignition electrodes (E1) by
means of the K7 igniter relay and then the K3 request relay,
both the coils of the gas valve (Y1).
The ignition of the burner is detected by the integrated P.C.B.
by means of the ionisation electrode (E2).
When the flame has been detected, the fan speed is increased
in a way to immediately reach (if requested) the maximum
adjusted value or that necessary to reach the set temperature.
Successively, flame modulation takes place with reference to
the difference between the temperature set using the DHW
temperature selector switch and the temperature detected by
the DHW probe (B2).
When the temperature measured by the DHW probe (B2)
exceeds the value requested (set temperature), the K3 relay is
opened (burner switch-off) and after the post-circulation time
(60 seconds) also relay K2 (boiler pump). In the meantime
the fan functions and carries out post-ventilation for 35
seconds.
When the temperature of the DHW contained in the storage
tank drops below the value defined and that can be set using
the "DHW OFF" parameter with respect to the temperature
set by the DHW temperature selector switch, the relays are
closed again in order to start a new ignition cycle.
If, during functioning, the flow probe (B1) measures a temperature exceeding 90°C, the contact of relay K3 is opened
(burner switch off) which are closed again when the temperature
drops to 75°C.
When the temperature detected by the CH flow probe (B1)
falls below 4 °C, the board gives consent for ignition and keeps
the generator working with the burner at minimum output
until a boiler temperature equal to 42 °C is reached (radiators
anti-freeze).
The anti-freeze function is not activated if the main boiler
(Stand-by).
button is selected
DHW anti-freeze request.
If the temperature detected by the DHW probe (B2) falls
below 4 °C, the board gives consent for boiler ignition and
keeps the generator working with the burner at minimum
output until a temperature of 20 °C is reached. Post-circulation
is then activated in the central heating mode with duration
of 150 seconds.
During functioning, the water in the primary circuit remains
below 42 °C as on reaching this temperature the board switches
the burner off.
If the DHW anti-freeze is activated in concomitance with a
central heating request, the DHW anti-freeze is served for
2 minutes and the central heating request for 6.5 minutes
(continuously).
"Chimney sweep" request.
Press the Reset button "C" for a time between 8 and 15
seconds, on its release the board gives consent for ignition of
the generator and keeps it functioning at maximum heating
output set for 15 minutes.
During this period only the limit thermostat function is
respected (90 °C), which is performed by the central heating
flow probe (B1).
The function is signalled by the relative symbol and the code
"07" on the remote control display (if mounted).
It can be interrupted by pressing the main button ( ) in the
off position or after 15 minutes have passed.
System deaeration function.
To activate the “DEAERATION” function, press buttons “A
and B” at the same time for 5 seconds with boiler in standby. The function consists in the cyclic activation of the pump
(100 s ON, 20 s OFF) and the 3-way valve (120 s domestic
hot water, 120 s central heating).
The function ends after 18 hours or by switching the boiler
on using the ignition button ( ).
Solar function.
With the "DHW OFF" parameter on “OFF2” (DHW set-point
hysterisis 2), the boiler is prepared to receive pre-heated water
from a system of solar panels.
While the water contained in the storage tank is at a temperature above the DHW set-point -10°C, the burner and the
pump remain off.
The boiler is kept in the DHW status, shown on the display.
The boiler activates in the DHW mode only when the temperature of the water contained in the storage tank is below
the DHW set-point -10°C.
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Inputs.
Comando Amico Remoto
remote control (CAR)
(optional) (see CAR functioning)
It sends SUMMER/WINTER selector switch, DHW and CH temperature adjustment
and CH request signals to the board (time, room temperature, error codes, etc...).
IMG BUS connection
(optional)
It allows the connection of electronic devices, e.g. Immergas zones digital control unit.
System pressure switch
(S5)
When the pressure of the primary circuit is lower than 0.3 bar
remove the power supply to the K3 relay, thus preventing burner
ignition.
Open =
No pressure
Closed =
Pressure OK
Button
It sends the board a signal that allows ignition or boiler stand-by.
Button "A"
It sends a signal to the board that allows boiler functioning in Summer
( ) or Winter ( ) mode.
Button "B"
It sends the board a signal that allows to activate or deactivate the DHW priority function.
Button "C"
It sends the board a signal that allows to release the integrated P.C.B. after the intervention
of an anomaly or boiler block, signalled with the relative "ERR xx"" error code (see errors
and anomalies list).
In the P.C.B. programming mode it allows to exit the configuration menu.
Button "D"
It sends the P.C.B. a signal that allows to enter the configuration menu and to confirm
the adjustments made.
Flame detection
(E2)
Super CAR
(optional)
STHCkW ed 0409
It is a signal that indicates that the flame has been detected.
It allows the integrated P.C.B. to increase the fan speed after having
limited it during the ignition phase.
Flame signal =
6 ÷ 15 microA
It sends the board the signals of the various functioning state, programming setting,
information and reset buttons as well as DHW and CH temperature adjustment signals
and CH request (time, room temperature, error codes, etc...).
Using the Super CAR it is possible to indifferently vary some settings from the boiler control panel and from the Super CAR control panel, such as: selection of Summer Winter,
DHW comfort status, DHW set point.
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External probe (B4)
(optional)
It is a resistance that can be varied proportionally to the external
temperature.
It allows the integrated P.C.B. to vary the system flow temperature
depending on the external temperature.
PTC probe
1 kΩ 25 °C
Flow probe
(B1)
It is a resistance that can be varied in an inversely proportional
manner to the temperature of the primary circuit flow water.
It is also used as a limit thermostat on the flow (90 °C).
NTC probe
10 kΩ 25 °C
Domestic hot water probe
(B2)
It is a resistance that can be varied in an inversely proportional
manner to the temperature of the water contained in the storage
tank.
NTC probe
10 kΩ 25 °C
Return probe resistance
(R9)
It is a resistance that simulates the presence of the system return
probe. It must always be present.
Factor
2,2 kΩ 1/4 W
Room thermostat
(S20)
(external optional)
It is a clean contact switch that sends a signal (in low voltage) to
the board enabling functioning in the CH mode when the room
temperature is lower than that requested.
Open = Central
heating OFF
Closed = Central
heating ON
Flue safety thermostat
(E6)
It is a contact which, on opening, allows the board to identify and
display any flue safety thermostat intervention (E6) with an "ERR
03" error code.
Open = Functioning OFF
Closed = Functioning ON
Safety thermostat
(E4)
It is a contact which, on opening, allows the board to identify and
display any flue safety thermostat intervention (E4) with an "ERR
02" error code.
Open = Functioning OFF
Closed = Functioning ON
Fan speed
STHCkW ed 04/09
It is a square wave signal detected with a Hall effect sensor inserted into the fan. It allows
the integrated P.C.B. to measure the speed and correct it if it does not comply with the
requested value.
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Outputs.
Gas valve power supply
(Y1)
It is a 24 V DC signal that indicates the power supply of the main coils of the gas valve.
Comando Amico Remoto
remote control (CAR)
(optional) (see CAR functioning)
It is a signal (BUS) that shows boiler temperature, functioning in DHW and Ch mode,
the alarm codes that have intervened and the temperature detected by any external probe
on the remote control display.
Igniter relay
(K7)
It is a unipolar relay that is excited when burner ignition is necessary. The electric spark takes
place at the ends of the ignition electrodes positioned on the burner, due to its contact.
Boiler pump relay
(K2)
It is a unipolar relay for boiler pump control (M1) that is excited when its functioning
is requested.
Three-way valve relay
(K4)
It is a relay that allows to power the motor (M) of the electric 3-way valve (M30). It is
excited with a central heating request and remains in stand-by with a domestic hot water
request.
Gas valve relay
(K3)
It is a unipolar relay that allows to power the gas valve coils when the boiler must be
ignited.
Super CAR
(optional)
It is a signal (BUS) that shows boiler temperature, functioning in DHW and Ch mode,
the alarm codes that have intervened and the temperature detected by any external probe
on the remote control display.
IMG BUS connection
(optional)
Fan
STHCkW ed 0409
It allows the connection of electronic devices, e.g. Immergas zones digital control unit.
It is a positive square wave signal with variable ON-OFF relationship (duty-cycle) that
controls the fan.
Allows to vary the air flow rate to the Venturi pipe and therefore the gas pressure to the
burner.
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Safety devices.
Three-way valve/anti-block
pump
After 24 hours from the last activation, independently from the functioning status of the
boiler (Summer or Winter), the pump (M1) is started for a time of 30 seconds and the
three-way valve (M30) is started for a period of 10 seconds.
Fan speed anomaly
If a fan speed is detected that is out of safe limits (700-5700 rpm) the burner is switched
off and it cannot be re-ignited for 7.5 minutes.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
Periodical self-check
The P.C.B. carries out a periodical self-check to control its correct functioning. During
functioning in heating mode or with boiler in stand-by, the function activates every 18
hours after the last boiler check/power supply.
In case of functioning in domestic hot water mode the self-check starts within 10 minutes
after the end of the withdrawing in progress, for duration of approx. 10 seconds.
N.B.: the boiler remains inactive during the self-check, the display continues to show the
functioning state previous to the self-check, to then re-start normal functioning.
Electro-mechanical contacts block
In the case of: high resistance of the safety thermostat contact (contact not perfectly closed
or worn); anomaly on gas valve piloting circuit; no electric connection to the gas valve
(connector disconnected or gas valve coils shut-off); error inside the integrated P.C.B, the latter performs a reset and starts a new cycle to check contacts; if the problem persists after
6 check cycles, boiler functioning is prevented.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
Parasite flame block
In the case of dispersion of the detection circuit or anomaly in the flame control that
generates a correct ionisation current (without the gas valve being open) with the duration
of at least 20 seconds, boiler functioning is blocked.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
No ignition
Ignition
If within 10 seconds from the start of the ignition cycle, the detection electrode (E2) has
not detected flame presence on the burner, boiler functioning is blocked.
The integrated P.C.B. makes 2 ignition attempts with duration of 10 seconds, intervalled
by a time of 30 seconds, after which it blocks.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
N.B.: It is possible to reset the anomaly up to 5 consecutive times, after which the function is prevented for at least one hour and one attempt is gained after every hour. Five
attempts can be gained by pressing the
or Stand-by key or by removing the power
supply to the circuit.
Safety thermostat block
If the contact of the water overheating thermostat is opened (temperature of the primary
circuit exceeding 100 °C), boiler functioning is blocked.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
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Low temperature zones 2
and 3 safety thermostat
block
If the contact of the water overheating thermostat is opened (temperature of the primary
circuit exceeding 55 °C), functioning of the respective CH zone is blocked.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
Flue safety thermostat
block
If the contact of the flue overheating thermostat is opened (temperature of the external part
of the condensation module exceeding 110 °C) owing to the combustion impurities deposited
on the heat exchanger (soot, oxidations, etc...), boiler functioning is blocked.
To re-start the appliance, press the “Reset” button "C" and then make a central heating
or domestic hot water request.
Insufficient circulation
To prevent overheating of the water-gas heat exchanger if the pump is blocked or due to
little circulation in the primary circuit, when the CH NTC flow probe (B1) detects an
increase in the temperature exceeding 5 °C per second (for more than 2 consecutive seconds),
the burner is switched off.
Re-start takes place when the flow temperature falls below 43°C.
Boiler pump post
circulation
To prevent overheating of the water-gas heat exchanger, at the end of CH (room thermostat
opening), anti-freeze or "chimney sweep" request, the boiler pump (M1) is kept working
for a period of 10 seconds.
At the end of every DHW request, the boiler pump (M1) is left running for 60 seconds.
Sealed chamber post-ventilation
The combustion chamber is washed after switch-off of the burner at the end of any request
and the fan works for 35 seconds.
Sealed chamber postventilation following
overheating safety block
intervention
After burner switch-off following an overheating block (water or flue gas), the fan is made
to work for 510 seconds (8.5 min) at a speed of about 1/3 of the maximum set.
Flow NTC breakage
(B1)
The breakage of the central heating flow probe (B1) is signalled by the relative anomaly
and prevents functioning both in the central heating and domestic hot water modes.
Low temperature zones 2
and 3 flow NTC breakage
The breakage of the flow probe is signalled by the relative anomaly and prevents the functioning of the respective low temperature central heating zone.
Return probe resistance
breakage
(R9)
The breakage of the return probe resistance (R9) is signalled by the return probe anomaly.
Breakage of the NTC DHW
probe (B2)
The breakage of the DHW outlet probe (B2) is signalled by the relative anomaly and
prevents functioning in DHW mode, but functioning in CH mode is allowed.
Flow over-heating ventilation
T prevent overheating of the water-gas heat exchanger, if the boiler temperature detected
by the NTC flow probe (B1) exceeds 105 °C, the fan is made to work until the temperature drops below 100 °C.
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Functioning status and mode.
The boiler is supplied with a control panel (where the buttons
and temperature selector switches used to control the boiler are
positioned) and a display that shows appliance functioning
mode and status.
In normal functioning phase the display indicates the functioning mode.
In the case shown below as an example, the boiler is functioning to satisfy a room central heating request.
Each key has the following function:
During the request for central heating “CH ON” appears on
the display on the status indicator (6) and at the same time
as burner ignition the flame presence indicator switches on
(8) with relative power scale and the indicator (9 and 7) with
the instantaneous outlet temperature from the primary heat
exchanger at 55° to satisfy the setting of 45° in central heating
mode made by the selector switch (3).
Stand-by - On Button
A
Summer ( ) and Winter ( ) functioning mode
selection button
B
DHW priority button ( )
C
Reset (RESET) / exit menu (ESC) button
D
Menu entry (MENU)/ data confirmation button
(OK)
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Below find a list of the various boiler functioning status that
appear on the malfunction display by means of the indicator
(6).
Display (6)
Description of functioning states
SUMMER
Summer functioning mode in progress without request.
Boiler in stand-by for domestic hot water request.
WINTER
Winter functioning mode without request in progress.
Boiler in stand-by for domestic hot water or central heating request.
DHW ON
Domestic hot water mode in progress.
Boiler functioning, domestic hot water heating in progress.
Central heating mode in progress.
Boiler functioning, central heating in progress.
CH ON
F3
(ANTIFR.)
Anti-freeze mode in progress.
Boiler functioning to restore the minimum safety temperature against boiler freezing.
CAR OFF
Remote Control (Optional) off.
DHW OFF
With domestic hot water priority disabled (symbol
off), the boiler functions in room central heating
mode for duration of 1 hour, however keeping the domestic hot water at minimum temperature (20 °C),
after which the boiler goes back to the normal functioning, previously set.
If used with Super CAR in concomitance with the functioning period in reduced DHW Timer mode,
DHW OFF appears on the display.
The disabled DHW priority function has priority over the anti-legionella function.
F4
(POSTFAN)
Postventilation in progress.
Fan in function after a request for domestic hot water or central heating in order to evacuate residual
fumes.
F5
(POSTCIRC)
Postcirculation in progress.
Pump in function after a request for domestic hot water or central heating in order to cool the primary
circuit.
P33
(EMERGENCY)
With Remote Control (Optional) or room thermostat (TA) (Optional) in block mode, the boiler functions all the same in CH mode (Can be activated using the “Customisations” menu, it allows to activate the
central heating even if the Remote Control or TA are out of service).
STOP
Reset attempts finished.
One hour must pass in order to acquire 1 attempt (See no ignition block).
ERR xx
Anomaly present with relative error code.
The boiler does not function (see troubleshooting paragraph).
SET
(DHWSET)
SET
(CH SET)
During the rotation of the domestic hot water temperature selector switch, view the state of the adjustment of the domestic hot water temperature in progress.
During rotation of the central heating selector switch, view the adjustment status of the boiler flow
temperature for room central heating.
SET
(OTCCORR)
In presence of the external probe (Optional) replace the “SET CH” item.
The value that appears is the correction of the flow temperature with respect to the functioning curve set
by the external probe.
F8
(AIRPURGE)
System deaeration in progress.
During this phase, which lasts 18 hours, the boiler pump is started at pre-established intervals, thus allowing deaeration of the heating system.
F9
(ANTILEG)
Only in the case of use with Super CAR, does it allow to activate the anti-legionella function, which
takes the temperature of the water in the storage tank to 65°C for 15 minutes (see Super CAR instruction
book).
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Programming the P.C.B.
3
The HERCULES Condensing boiler is prepared for possible
programming of several operation parameters.
By modifying these parameters as described below, the boiler can
be adapted according to specific needs.
By pressing the button "D" it is possible to access a menu divided
into three main parts:
- Information “M1” (INFO)
Important: if the international language is to be restored (A1),
proceed as follows:
- press button “D” to enter the configuration menu.
- customisation “M3” (PERS.MENU)
- press button “D” to confirm.
- configurations“M5” (CONFIG) menu reserved for the
technician, which requires an access code.
- turn selector switch “3” to “LINGUA”.
Moreover, if the zones digital management board is connected
(standard for the HERCULES Condensing ABT version) a further
menu can be accessed:
- setting "M9" (ZONES).
- turn selector switch “3” to “A-1”.
- turn selector switch “3” to “PERSONAL”.
- press button “D” to confirm.
- turn selector switch “3” to “DATI”.
- press button “D” to confirm.
- press button “D” to confirm.
At this point the international items indicated in the menu
tables appear on the display.
To access programming, press button “D”, turn the central
heating temperature selector switch (3) and scroll through the
menu items until reaching the desired item. By pressing button
“D” access the various menu sub-levels and it is possible to
confirm the choice of the parameters according to requirement.
Press button “C” to go back one level.
(The first item of the various options that appears inside the parameter is that selected by default).
NB: To access the “M5” menu (reserved for the technician)
a three-figure access code must be introduced (the code is
472), which is carried out by turning the heating temperature
selector (3) until finding the correponding figure, then confirm
the selection by pressing button “D”, after which it is possible
to access the selection and modification of the parameters as
previously specified.
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Information menu M1 (INFO). This menu contains the
various information relative to boiler operations:
1st
Level
Button
2nd Level
Button
P11
(SOFTWARE)
P12
(HEAT.TIME)
P13
(IGNIT.NR)
M1 (INFO)
C
Button
Description
Displays the management software version of the circuit board installed
in the boiler
D
Displays the total operating hours of the boiler
C
Displays the number of burner ignitions
P14
(OUTSIDET.)
(with optionall
external probe
present)
D
3rd Level
D
-(NO EXT.P.)
(without optional
external probe
present)
C
P14/A
(CURRENT)
P14/B
(OUTT.MIN)
P14/C
(OUTT.MAX)
RESET
Displays the current external temperature (if external probe is present
Optional)
Displays the minimum external temperature recorded (if external probe is
present Optional)
Displays the maximum external temperature recorded (if external probe is
present Optional)
D
x
selection
By pressing button“D” the MIN and MAX temperatures measured are
reset
C
P15
(DHW FLOW)
P17
(FANSPEED)
P18
(PUMPSPEED)
No display for this model
Displays the speed in instantaneous revs of the fan
D
C
The value displayed does not affect this model
Displays the last 5 events that have caused the boiler to shutdown
The sequential number from 1 to 5 along with the relative error code
By pressing button “D” repeatedly, it is possible to display opeating times
and the number of ignitions where the anomaly took place
P19
(FAILURE)
Customisations menu M3 (PERS.MENU). AThis menu
contains all operating options that can be customised. (The
first entry of the various options that appears within the parameter is that selected by default).
1st
Level
Button
2nd Level
P31
(DISPLAY)
Button
3rd Level
D
(LIGHT)
AUTO
(Default)

C
(LIGHT) ON
M3 (PERS. MENU)
(LIGHT) OFF
D
P32
(DISP.
DATA)
C
C
P32/B
(LANGUAGE)
P33
(EMERGENCY)
RESET
(RESET
ALL)
STHCkW ed 0409
D
P32/A
(DISP.DESC.)
D
C
OFF
(EMERG.)
ON
(EMERG.)
Button
Button
Description
D
x
selection
The display lights up when the burner is
on and when the controls are accessed.
It remains on for 5 seconds after the last
operation performed
The display is always lit
The display only lights up when the
controls are accessed and remains on for 5
seconds after the last operation performed
The indicator displays the output
temperature from the primary heat
exchanger
The indicator displays the current external
temperature (with external probe Optional)
D
x
selection
C
P32/A.1
(CH.TEMP.)
(Default)
P32/A.2
(OUTSIDET.)
ITALIAN
(Default)
A1
(ALPHANUM)
D
C
D
C
D
x
selection
C
D
x
selection
C
All descriptions are given in Italian
All descriptions are given in Alphanumeric
mode
By activating this function in winter mode,
the room heating function can be activated
even if the Remote Control or TA are out
of order
By pressing button “D” the customisations
made are reset, restoring the values set in
the factory
C
Disp.Non-Stop: 0729.983.578
4th Level
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Menu configurations M5 (CONFIG). This menu contains
all configuration options of the boiler functioning parameters
that can be customised. (The first item of the various options that
appears inside the parameter is that selected by default).
M5 Menu (CONFIG)
(an access code must be introduced)
1st Level
2nd Level
Options
24 KW
P53
(POWER)
28 KW
32 KW
Default value
Value
set by the
technician
Equal to boiler
power
Equal
to boiler
power
-
-
-
-
-
-
-
-
Description
Identifies the output of the boiler on which the P.C.B. is installed
N.B.: in the case of boiler models called 26 kW set the parameter as:
“OUTPUT 24 KW”.
P54.1
Display the temperature measured by the probe on the storage tank unit
DHW NTC1
P54.2
Not used
DHW NTC 2
P54.3
The value displayed does not affect this model
NTC 3
Displays the central heating flow temperature at which the boiler functions, calculated by the controls active on the system heat adjustment
P54
(NTC.
TEMP.)
P55
(CALCCHT)
1
P57
(PUMP
SPEED)
2
3
Independently from the options that can be displayed or set, this parameter does not effect correct boiler functioning
AUTO
15 K
AUTO
P62
(MAX SPEED)
P63
(MIN SPEED)
P64
(MAX CH)
P65
(MIN CH)
4000 ÷ 5500
1000 ÷ 1500
≤ P62 (MAX
SPEED)
≥ P63 (MIN
SPEED)
P66/A
(MIN. CH
T.)
SERVICE
(BOIL.PAR.)
P66
(T.REG.
PAR.)
P66/B
(MAX. CH
T.)
P66/C
(MIN. EXT
T.)
P66/D
(MAX. EXT
T.)
STHCkW ed 04/09
Set the maximum output depending on the domestic hot water, setting
the speed of the fan (in RPM)
Set the minimum output depending on the domestic hot water, setting
the speed of the fan (in RPM)
Set the maximum output depending on room central heating. The value
must be less than or equal to"P62" (MAX. SPEED)
Set the minimum output depending on room heating. The value must be
less than or equal to "P63" (MIN. SPEED)
Without the external probe (optional) it defines the minimum flow
temperature. With the external probe present it defines the maximum
flow temperature corresponding to functioning with maximum external
temperature (can be set from 25°C to 50°C)
N.B.: to continue it is necessary to confirm the parameter (press “D” or
exit from “P66” adjustments by pressing “C”)
Without the external probe (optional) it defines the maximum flow
temperature. With the external probe present it defines the maximum
flow temperature corresponding to functioning with minimum external
temperature (can be set from 50°C to 85°C)
N.B.: to continue it is necessary to confirm the parameter (press “D” or
exit from “P66” adjustments by pressing “C”)
With the external probe present it defines at which minimum external
temperature the boiler must function at the maximum flow temperature
(can be set from -20°C to 0°C)
N.B.: to continue it is necessary to confirm the parameter (press “D” or
exit from “P66” adjustments by pressing “C”)
With the external probe present it defines at which maximum external
temperature the boiler must function at the minimum flow temperature
(can be set from 5°C to +25°C)
N.B.: to continue it is necessary to confirm the parameter (press “D” or
exit from “P66” adjustments by pressing “C”)
Disp.Non-Stop: 0729.983.578
53
See page 29
See page 29
See page 29
See page 29
25°C
85°C
-5°C
25°C
HERCULES Condensing Export
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M5 Menu (CONFIG)
(an access code must be introduced)
1st Level
2nd Level
Options
P67
(PUMP
MODE)
P67.1
(CONTINUE)
P67.2
(INTERMIT)
P67.3
(ECONOMY)
P68
(RT DALAY)
P69
(ANTICYC)
P70
(CH RAMP)
0s ÷ 500s
0s ÷ 255s
0s ÷ 840s
P71.1
(OFF1)
(-3 °C)
P71
(DHW OFF)
P72
(FLOW REG)
P71.2
(OFF2)
(-10 °C)
AUTO
OFF
8 L/M
10 L/M
12 L/M
RELE1.OFF
SERVICE
(BOIL.PAR.)
RELE1.1
RELE 1
(optional)
RELE1.2
RELE1.3
RELE1.4
RELE2.OFF
RELE2.6
RELE 2
(optional)
RELE2.2
RELE2.3
RELE2.4
RELE2.5
RELE3.OFF
RELE3.7
RELE 3
(optional)
RELE3.2
RELE3.3
RELE3.4
P76
(EXT. T.
CORR)
STHCkW ed 0409
-10°C ÷
+10°C
Default
value
Description
Value
set by the
technician
In winter mode the boiler pump and that of the main zone are always
powered and therefore always function
In winter mode the pumps are managed by the room thermostat or by the
remote control
INTERMIT
In winter mode the pumps are managed by the room thermostat or by the
remote control and by the boiler flow probe
The boiler is set to ignite the burner immediately after a request for central
heating. In the case of particular systems (e.g. zone systems with motorised
valves etc.) it could be necessary to delay switch-on
The boiler has an electronic timing device that prevents the burner from
igniting too often in the central heating phase.
The boiler performs an ignition ramp to arrive from minimum power to
nominal heat output.
Boiler ignition for heating the domestic hot water occurs when the water
contained in the storage tank falls by 3°C with respect to the temperature
set
Solar function deactivated
Boiler ignition for heating the domestic hot water occurs when the water
contained in the storage tank falls by 10°C with respect to the temperature
set
Solar function active, if the input domestic hot water has a sufficient temperature the boiler does not switch on
Independently from the options that can be displayed or set, this parameter
does not effect boiler functioning
0 seconds
180 secondi
840 seconds
(14 minutes)
OFF 1
FIXED ON
AUTO
Relay 1 not used
In a system divided into zones, relay 1 controls the main zone
The relay signals the intervention of boiler block (Can be coupled to an
external signalling device, not supplied)
The relay signals that the boiler is on
(Can be coupled with an external indicator, not supplied)
Controls the opening of an external gas valve in concomitance with an ignition
request of the boiler burner
1 MAIN
Relay 2 not used
Relay 2 activates the remote filling electrovalve (Optional). The control takes
place from remote control.
The relay signals the intervention of boiler block (Can be coupled to an
external signalling device, not supplied)
The relay signals that the boiler is on
(Can be coupled with an external indicator, not supplied)
Controls the opening of an external gas valve in concomitance with an ignition
request of the boiler burner
2 OFF
In a system divided into zones, relay 2 controls the secondary zone
Relay 3 not used
Check the storage tank recirculation pump
(optional pump)
The relay signals the intervention of boiler block (Can be coupled to an
external signalling device, not supplied)
The relay signals that the boiler is on
(Can be coupled with an external indicator, not supplied)
Controls the opening of an external gas valve in concomitance with an ignition
request of the boiler burner
If the reading of the external probe is not correct it is possible to correct it in
order to compensate any environmental factors
Disp.Non-Stop: 0729.983.578
54
3 OFF
0°C
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Menu setting M9 (ZONES). This menu contains the settings
of the functioning temperatures in the low temperature zone
(standard for ABT version, optional for other models) and any
other additional low temperature zone (optional).
1st
Level
Button
2nd Level
M9 (ZONES)
P91
(T. ZONE 2)
P92
(T. ZONE 3)
D
C
P93
(SET. L.T. 2)
P94
(SET. L.T. 3)
Button
D
Displays the current temperature of the low temperature zone number 2.
C
D
C
D
C
D
x
select
C
STHCkW ed 04/09
Description
Displays the current temperature of the low temperature zone number 3.
Defines the flow temperature of the zone number 2 at low temperature.
With external probe (optional) present the flow temperature can be corrected with respect to the
functioning curve set by the external probe. See OFFSET on the external probe graphics by modifying the temperature from -15°C to +15°C.
It defines the flow temperature of the zone number 3 at low temperature.
With external probe (optional) present the flow temperature can be corrected with respect to the
functioning curve set by the external probe. See OFFSET on the external probe graphics by modifying the temperature from -15°C to +15°C.
Disp.Non-Stop: 0729.983.578
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Fault and anomaly signals.
5
6
The HERCULES Condensing boiler signals any anomalies
by the flashing symbol (5) along with the “ERRxx” indication on the indicator (6) where “xx” corresponds to the error
Anomaly signalled
No ignition block
Safety thermostat block (over-heating), flame control
anomaly
Flue safety thermostat block
Contacts resistance block
Flow probe anomaly
Insufficient system pressure
Domestic hot water probe anomaly
Configuration error
Fan anomaly
Parasite flame block
Zones control unit anomaly (displayed only on CAR
or Super CAR remote control when the boiler displays he
errors from 32 to 36)
Return probe anomaly
Push button control panel anomaly
Insufficient circulation
Loss of remote control communication
Low temperature zone 2 probe anomaly
Low temperature zone 3 probe anomaly
Low temp. zone 2 safety thermostat intervention.
Low temp. zone 3 safety thermostat intervention.
IMG Bus communication loss
Low power supply voltage
Loss of flame signal
STHCkW ed 0409
Disp.Non-Stop: 0729.983.578
code described in the following table. To eliminate the block
(where necessary), press the RESET "C" button positioned on
the boiler panel.
Error code display
Super CAR display
Car display
ERR 01
ERR 01
E01
ERR 02
ERR 02
E02
ERR 03
ERR 04
ERR 05
ERR 10
ERR 12
ERR 15
ERR 16
ERR 20
ERR 03
ERR 04
ERR 05
ERR 10
ERR 12
ERR 15
ERR 16
ERR 20
E02 + E03
E02 + E04
E05
E10
E12
E15
E16
E02 + E20
ERR from 32 to 36
ERR 22
E22
ERR 23
ERR 24
ERR 27
ERR 31
ERR 32
ERR 33
ERR 34
ERR 35
ERR 36
ERR 23
ERR 24
ERR 27
ERR 31 / CM
ERR 22
ERR 22
ERR 22
ERR 22
ERR 22
E23
E24
E27
E31 / CON
E22
E22
E22
E22
E22
ERR 37
not displayed
not displayed
38
(displayed only on VIRGILIO palmtop, or inside the "M1"/ "P19"
menu)
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Technical Data.
HERCULES Condensing technical data.
Domestic hot water nominal heat input
Central heating nominal heat input
Minimum heat input
Domestic hot water nominal heat output (useful)
Central heating nominal heat output (useful)
Minimum heat output (useful)
Efficiency 80/60 Nom./Min.
Efficiency 50/30 Nom./Min.
Efficiency 40/30 Nom./Min.
Heat loss at casing with burner On/Off (80-60°C)
Heat loss at flue with burner On/Off (80-60°C)
Central heating circuit max. operating pressure
Central heating circuit max. operating temperature
Max. adjustable central heating temperature
Min. adjustable central heating temperature
System expansion vessel total volume
Heating expansion tank pre-charge
Total volume domestic hot water expansion vessel
Domestic hot water expansion vessel pre-charge
Water content in generator
Total head available with 1000/h flow rate
Hot water production useful heat output
Domestic hot water adjustable temperature
Domestic hot water flow limiter
Min. pressure (dynamic) domestic hot water circuit
Domestic hot water circuit max. working pressure
*Specific capacity “D” according to EN 6625
Drawing capacity in continuous duty (∆T 30°C)
Domestic hot water performance classification according to N 13203-1
Weight of full boiler
Weight of empty boiler
Electrical connection
Power input
Installed electric power
Pump consumption
Fan consumption
Equipment electrical system protection
Flue gas max. temperature
NOX class
Weighted NOX
Weighted CO
Type of appliance
Category
- The maximum sound level emitted during boiler operation is <
55dBA. The sound level value is referred to semianechoic chamber
tests with boiler operating at max. heat output, with extension of
fume exhaust system according to product standards.
- Fume temperature values refer to an air inlet temperature of
15°C.
- The data relevant to domestic hot water performance refer to a
dynamic inlet pressure of 2 bar and an inlet temperature of 15°C;
the values are measured directly at the boiler outlet considering that
to obtain the data declared mixing with cold water is necessary.
STHCkW ed 04/09
Disp.Non-Stop: 0729.983.578
Hercules
Hercules
Condensing 26
Condensing
2E
32 2 I
kW (kcal/h)
26,9 (23137)
33,0 (28392)
kW (kcal/h)
24,9 (21415)
33,0 (28392)
kW (kcal/h)
5,0 (4323)
7,3 (6279)
kW (kcal/h)
25,8 (22188)
32,0 (27520)
kW (kcal/h)
23,9 (20554)
32,0 (27520)
kW (kcal/h)
4,7 (4042)
6,9 (5934)
%
96,0 / 93,5
96,9 / 94,5
%
104,1 / 106,0
104,7 / 105,8
%
106,5 / 106,5
107,3 / 107,3
%
0,89 / 1,0
0,75 / 0,20
%
0,04 / 3,1
0,03 / 2,90
bar
3
3
°C
90
90
°C
25 - 85
25 - 85
°C
25 - 50
25 - 50
l
10,8
10,8
bar
1,0
1,0
l
4,1
4,1
bar
3,5
3,5
l
6,0
6,7
30,87 (3,15)
30,87 (3,15)
kPa (m H2O)
kW (kcal/h)
25,8 (22188)
32,0 (27520)
°C
20 - 60
20 - 60
l/min
30,0
30,0
bar
0,3
0,3
bar
8,0
8,0
l/min
19,9
24,3
l/min
13,3
16,0

kg
252
254
kg
126,6
127,9
V/Hz
230 / 50
230 / 50
A
0,73
0,78
W
155
155
W
61
61
W
25,2
26,4
IPX5D
IPX5D
°C
75
75
5
5
mg/kWh
48
52
mg/kWh
20
17
C13 / C33 / C43 / C53 / C83 / B23 / B33
II2H3B/P
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HERCULES Condensing ABT 32 2 I technical data.
Domestic hot water nominal heat input
Central heating nominal heat input
Minimum heat input
Domestic hot water nominal heat output (useful)
Central heating nominal heat output (useful)
Minimum heat output (useful)
Efficiency 80/60 Nom./Min.
Efficiency 50/30 Nom./Min.
Efficiency 40/30 Nom./Min.
Heat loss at casing with burner On/Off (80-60°C)
Heat loss at flue with burner On/Off (80-60°C)
Central heating circuit max. operating pressure
Central heating circuit max. operating temperature
Max. adjustable central heating temperature
Min. adjustable central heating temperature
System expansion vessel total volume
Heating expansion tank pre-charge
Total volume domestic hot water expansion vessel
Domestic hot water expansion vessel pre-charge
Water content in generator
High temperature zone total head available with 1000/h flow rate
Low temperature zone total head available with 1000/h flow rate
Hot water production useful heat output
Domestic hot water adjustable temperature
Domestic hot water flow limiter
Min. pressure (dynamic) domestic hot water circuit
Domestic hot water circuit max. working pressure
*Specific capacity “D” according to EN 6625
Drawing capacity in continuous duty (∆T 30°C)
Domestic hot water performance classification according to N 13203-1
Weight of full boiler
Weight of empty boiler
Electrical connection
Power input
Installed electric power
Pump consumption
Fan consumption
Equipment electrical system protection
Flue gas max. temperature
NOX class
Weighted NOX
Weighted CO
Type of appliance
Category
- The data relevant to domestic hot water performance refer to a
dynamic inlet pressure of 2 bar and an inlet temperature of 15°C;
the values are measured directly at the boiler outlet considering that
to obtain the data declared mixing with cold water is necessary.
Disp.Non-Stop: 0729.983.578
33,0 (28392)
33,0 (28392)
7,3 (6279)
32,0 (27520)
32,0 (27520)
6,9 (5934)
96,9 / 94,5
104,7 / 105,8
107,3 / 107,3
0,75 / 0,20
0,03 / 2,90
3
90
25 - 85
25 - 50
10,8
1,0
4,1
3,5
6,9
30,87 (3,15)
35,28 (3,60)
32,0 (27520)
20 - 60
30,0
0,3
8,0
24,3
16,0

kg
256,4
kg
130,1
V/Hz
230 / 50
A
1,06
W
200
W
61
W
26,4
IPX5D
°C
75
5
mg/kWh
52
mg/kWh
17
C13 / C33 / C43 / C53 / C83 / B23 / B33
II2H3B/P
- The maximum sound level emitted during boiler operation is <
55dBA. The sound level value is referred to semianechoic chamber
tests with boiler operating at max. heat output, with extension of
fume exhaust system according to product standards.
- Fume temperature values refer to an air inlet temperature of
15°C.
STHCkW ed 0409
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
kW (kcal/h)
%
%
%
%
%
bar
°C
°C
°C
l
bar
l
bar
l
kPa (mm H2O)
kPa (mm H2O)
kW (kcal/h)
°C
l/min
bar
bar
l/min
l/min
58
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Combustion parameters.
Supply pressure
mbar (mm H2O)
HERCULES Condensing 26 2 E
Gas nozzle diameter
mm
Flue flow rate at nominal heat output
kg/h
Flue flow rate at min heat output
kg/h
%
CO2 at Nom Q./Min.
ppm
CO with 0% O2 at Nom Q /Min.
mg/kWh
NOX with 0% O2 at Nom Q /Min.
Flue temperature at nominal output
°C
Flue temperature at minimum output
°C
HERCULES Condensing 32 2 I / HERCULES Condensing ABT 32 2 I
Gas nozzle diameter
mm
Flue flow rate at nominal heat output
kg/h
Flue flow rate at min heat output
kg/h
%
CO2 at Nom Q./Min.
ppm
CO with 0% O2 at Nom Q /Min.
mg/kWh
NOX with 0% O2 at Nom Q /Min.
Flue temperature at nominal output
°C
Flue temperature at minimum output
°C
STHCkW ed 04/09
Disp.Non-Stop: 0729.983.578
59
G20
20 (204)
G30
29 (296)
G31
37 (377)
5,70
43
8
9,40 / 8,90
200 / 7
57 / 25
78
73
4,10
39
7
12,00 / 11,80
670 / 11
187 / 86
86
82
4,10
43
8
10,60 / 10,20
270 / 7
69 / 41
79
75
WITHOUT
52
12
9,40 / 8,90
206 / 9
83 / 43
73
64
6,00
47
11
12,30 / 11,90
640 / 8
276 / 89
82
72
6,00
53
12
10,50 / 10,30
190 / 8
99 / 54
74
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HERCULES Condensing 26 2 E variable heat output.
METHANE (G20)
BUTANE (G30)
HEAT
OUTPUT
HEAT
OUTPUT
BURNER
GAS FLOW RATE
(kW)
(kcal/h)
(m3/h)
(mbar)
(mm H2O)
(kg/h)
(mbar)
(mm H2O)
(kg/h)
(mbar)
(mm H2O)
25,8
25,0
24,0
23,9
22,0
21,0
20,0
19,3
18,0
17,0
16,0
15,0
14,0
13,0
12,0
11,0
10,0
9,0
8,0
7,0
6,0
5,0
4,7
22188
21500
20640
20554
18920
18060
17200
16590
15480
14620
13760
12900
12040
11180
10320
9460
8600
7740
6880
6020
5160
4300
4042
2,85
2,76
2,65
2,64
2,43
2,32
2,21
2,13
1,99
1,88
1,77
1,66
1,55
1,44
1,33
1,23
1,12
1,01
0,90
0,79
0,68
0,57
0,53
5,40
5,12
4,78
4,75
4,14
3,83
3,54
3,34
2,99
2,73
2,48
2,24
2,01
1,79
1,58
1,38
1,19
1,02
0,85
0,69
0,54
0,40
0,36
55,1
52,2
48,7
48,4
42,2
39,1
36,1
34,0
30,5
27,8
25,3
22,8
20,5
18,3
16,1
14,1
12,2
10,4
8,6
7,0
5,5
4,1
3,7
2,12
2,06
1,98
1,97
1,81
1,73
1,65
1,59
1,48
1,40
1,32
1,24
1,16
1,08
1,00
0,91
0,83
0,75
0,67
0,59
0,50
0,42
0,40
5,50
5,17
4,76
4,72
4,02
3,67
3,34
3,11
2,73
2,45
2,18
1,94
1,70
1,49
1,29
1,10
0,93
0,78
0,64
0,52
0,41
0,32
0,30
56,1
52,7
48,6
48,2
41,0
37,4
34,0
31,8
27,8
25,0
22,3
19,7
17,4
15,2
13,1
11,2
9,5
8,0
6,5
5,3
4,2
3,3
3,1
2,09
2,02
1,94
1,93
1,78
1,70
1,62
1,56
1,46
1,38
1,30
1,22
1,14
1,06
0,98
0,90
0,82
0,74
0,66
0,58
0,50
0,42
0,39
6,50
6,14
5,70
5,66
4,88
4,50
4,13
3,88
3,44
3,12
2,82
2,53
2,25
1,99
1,75
1,51
1,30
1,10
0,91
0,74
0,58
0,44
0,40
66,3
62,6
58,1
57,7
49,8
45,9
42,1
39,5
35,1
31,8
28,7
25,8
22,9
20,3
17,8
15,4
13,2
11,2
9,3
7,5
5,9
4,5
4,1
D.H.W.
CH.
+
DHW.
PRESS. NOZZLES
PRESSURE
BURNER
GAS FLOW RATE
PROPANE (G31)
PRESS. NOZZLES
PRESSURE
BURNER
GAS FLOW RATE
PRESS. NOZZLES
PRESSURE
HERCULES Condensing 32 2 I / ABT 32 2 I variable heat output.
METHANE (G20)
BUTANE (G30)
HEAT
OUTPUT
HEAT
OUTPUT
BURNER
GAS FLOW RATE
(kW)
(kcal/h)
(m3/h)
(mbar)
(mm H2O)
(kg/h)
(mbar)
(mm H2O)
(kg/h)
(mbar)
(mm H2O)
32,0
31,0
30,0
29,0
28,0
27,0
26,0
25,0
24,0
23,0
22,0
21,0
20,0
19,0
18,0
17,0
16,0
15,0
14,0
13,0
12,0
11,0
10,0
9,0
8,0
7,0
6,9
27520
26660
25800
24940
24053
23220
22360
21500
20640
19780
18920
18060
17200
16340
15480
14620
13760
12900
12040
11180
10320
9460
8600
7740
6880
6020
5934
3,49
3,38
3,27
3,16
3,05
2,94
2,83
2,73
2,62
2,51
2,40
2,29
2,19
2,08
1,97
1,87
1,76
1,65
1,54
1,44
1,33
1,22
1,11
1,00
0,89
0,78
0,77
1,53
1,44
1,35
1,27
1,18
1,10
1,03
0,95
0,88
0,81
0,75
0,69
0,63
0,57
0,52
0,47
0,42
0,37
0,33
0,29
0,25
0,22
0,18
0,15
0,13
0,10
0,10
15,6
14,7
13,8
12,9
12,0
11,2
10,5
9,7
9,0
8,3
7,6
7,0
6,4
5,8
5,3
4,8
4,3
3,8
3,4
2,9
2,6
2,2
1,9
1,6
1,3
1,0
1,0
2,61
2,52
2,44
2,36
2,28
2,20
2,12
2,03
1,95
1,87
1,79
1,71
1,63
1,55
1,47
1,39
1,31
1,23
1,15
1,07
0,99
0,91
0,83
0,75
0,67
0,58
0,58
1,88
1,76
1,64
1,53
1,42
1,32
1,22
1,13
1,04
0,95
0,87
0,79
0,72
0,65
0,59
0,53
0,47
0,42
0,37
0,33
0,29
0,25
0,22
0,19
0,17
0,15
0,15
19,2
17,9
16,7
15,6
14,5
13,4
12,4
11,5
10,6
9,7
8,9
8,1
7,4
6,7
6,0
5,4
4,8
4,3
3,8
3,4
3,0
2,6
2,3
2,0
1,7
1,5
1,5
2,56
2,48
2,40
2,32
2,24
2,16
2,08
2,00
1,92
1,84
1,76
1,68
1,61
1,53
1,45
1,37
1,29
1,21
1,13
1,05
0,97
0,90
0,82
0,74
0,66
0,58
0,57
2,38
2,20
2,03
1,87
1,71
1,57
1,43
1,30
1,18
1,07
0,96
0,86
0,76
0,68
0,60
0,53
0,46
0,40
0,35
0,31
0,27
0,24
0,22
0,20
0,19
0,19
0,19
24,3
22,4
20,7
19,1
17,5
16,0
14,6
13,3
12,0
10,9
9,8
8,8
7,8
6,9
6,1
5,4
4,7
4,1
3,6
3,1
2,8
2,4
2,2
2,0
2,0
1,9
1,9
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PRESS. NOZZLES
PRESSURE
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BURNER
GAS FLOW RATE
PROPANE (G31)
60
PRESS. NOZZLES
PRESSURE
BURNER
GAS FLOW RATE
PRESS. NOZZLES
PRESSURE
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Technical Documentation
Technical Documentation
List of accessories and optionals.
Radio timer-thermostat (wireless)
code 3.014439
Super Comando Amico Remoto remote control
code 3.016577
GSM telephone control kit
code 3.017182
External Probe
code 3.014083
Comando Amico Remoto remote control
code 3.011236
Solar panels coupling kit
code 3.019998
Digital weekly timer-thermostat
code 3.014438
Telephone control
code 3.013305
Clock kit for recirculation
code 3.015431
DHW recirculation kit (including pump)
code 3.020001
Cut-off cocks kit
code 3.4297
Cut-off cocks with filter kit
code 3.015854
Polyphosphate dispenser kit
code 3.019999
Water network cut-off kit
code 3.020000
Direct low temperature safety thermostat kit
code 3.019869
Condensate drain pump kit
code 3.020002
List of dedicated accessories only for HERCULES Condensing
2nd and 3rd additional high temperature zones kit
code 3.018838
2nd and 3rd additional low temperature zones kit
code 3.020003
2nd additional high temperature zone kit
code 3.018837
2nd additional low temperature zone kit
code 3.018836
Configurable relay interface kit
code 3.015350
List of dedicated accessories only for HERCULES Condensing ABT 32 2 I
3rd additional low temperature zone kit
code 3.018839
The boiler is prepared for coupling to the DIM (Multi-system Distribution Manifold), available in 5 recess or wall-hung kits.
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Ricerca guasti HERCULES Condensing.
Before every intervention:
Check that the gas, water and electricity are correctly connected
to the boiler, according to that indicated in the data plate and
the instruction manual.
Also make sure that:
- the gas valve and boiler parameters are correctly adjusted;
- all devices outside the boiler function and are appropriately
adjusted;
- the external and internal fuses are integral.
Before maintenance interventions or replacement of components, remove the electric power supply upstream from the
appliance.
For correct use of the troubleshooting table, on intervention it
is recommended to press the Reset button, switch the boiler off
and remove voltage from the appliance for at least 5 seconds.
This is to allow the boiler to start a new ignition cycle.
Ignition cycle
Apply voltage to the boiler.
The display lights up.
No
See section A
The error 05 appears on the display
Yes
See error section 05
The error 06 appears on the display
Yes
See error section 15
The error 10 appears on the display
Yes
See error section 10
The error 12 appears on the display
Yes
See error section 12
The error 23 appears on the display
Yes
See error section 23
The error 24 appears on the display
Yes
See error section 24
The error 32 appears on the display
Yes
See error section 32
The error 33 appears on the display
Yes
See error section 33
The error 34 appears on the display
Yes
See error section 34-a
The error 35 appears on the display
Yes
See error section 35-a
The error 37 appears on the display
Yes
See error section 37
Yes
No
CENTRAL HEATING MODE
DOMESTIC HOT WATER MODE
Press the main button (
Press the main button (
), and then press button A (WINTER).
Turn the central heating selector switch to maximum to prevent domestic
hot water functioning by pressing button B.
N.B.: wait for the completion of any DHW request if the temperature in
the storage tank is below 20°C.
The boiler pump starts.
No
See section B
Sì
Check the presence of the TA jumper on clamps
40-41 of the P.C.B.
N.B.: the jumper must not be present when
external devices are installed such as TA, CAR,
No clock programmer, etc...
The boiler pump
Check the effective request from any external
starts.
devices (TA/CAR programmer clock). See
N.B.: the display
error section 31.
must show CH
If present zones digital control unit (as standard
for HERCULES Condensing ABT)
No
See section F
No
), and then press button A (SUMMER).
Turn the DHW selector switch to maximum and open the cock
N.B.: the display must show DHW
The 3-way valve goes into the DHW
See section C
position.
No
See section B
Yes
The 3-way valve goes
into the CH posiSee section C
No
tion.
Yes
The zone pump
See section G
starts
No
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Yes
No
The error 02 appears on the display
See error section 02-a
No
The error 03 appears on the display
See error section 03-a
No
The error 16 appears on the display
See error section 16-a
The error 16 appears on the display
Yes
See error section 16-b
The error 20 appears on the display
Yes
See error section 20
The pump starts.
Yes
No
The ignition electrodes make the
No
spark.
The error 01 appears on the display
(wait for the board to make 2 ignition cycles).
See error section 01-a
No
The error 01 appears on the display
(wait for the board to make 2 ignition cycles).
See error section 01-b
No
The error 04 appears on the display
(wait for the board to make 5 ignition cycle attempts).
See error section 04
The burner stays on after the first
No
10 seconds.
The error 01 appears on the display
(attendere che la scheda compia 2 cicli di accensione).
See error section 01-c
Yes
The burner ignites.
Yes
Yes
The error 27 appears on the display
Yes
See error section 27
The error 02 appears on the display
Yes
See error section 02-b
The error 03 appears on the display
Yes
See error section 03-b
No
Check MAX CH
parameter and, if
The boiler reaches
necessary, adjust it
and maintains the set
until a pressure value
central heating tem- No
is obtained that corperature.
responds to the requested output.
Check that:
- the OUTPUT parameter corresponds to
the boiler output.
The boiler reaches
- check the MAX
and maintains the set
SPEED parameter and,
No
DHW temperature.
if necessary, adjust it
until a pressure value
is obtained that corresponds to the maximum output.
See section D
Yes
- Check the electrical connections between the
Any low temperature
zones control unit and mixing valves
zones are satisfied.
No - Check their functionality and replace them
if necessary
Yes
Yes
The central heating request is satisfied.
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The domestic hot water request is satisfied.
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Error codes.
ERROR 01
The cables between igniter and electrodes corresponds.
01
a
No ignition block
No
Restore the electric connection/replace the wiring.
No
Replace the igniter. If the anomaly persists, replace the P.C.B.
Yes
The igniter makes the spark.
At least 14 V DC is present on clamps 2-3 of the connector X19.
No
N.B: measure the voltage within the safety time (8-10 s).
01
b
Replace the P.C.B.
Yes
The wiring between the gas valve and P.C.B. is OK.
No
Restore the electric connection/replace the wiring.
Yes
Replace the gas valve.
N.B.: before replacing the valve make sure that there is enough gas inlet dynamic pressure and that the minimum and maximum output adjustment
are correctly made.
The electrode detects a direct current of 2-4 µA during the burner
No
ignition phase.
01
c
Replace the detection electrode and/or relative wiring.
Check correct position and distance between electrode and burner.
Check that siphon and the condensate exhaust duct are not blocked.
Yes
There are no combustion products in the air intake pipe.
N.B.: check the absence of CO2 or other combustion products in the
intake pipe.
No
Check the correct positioning of the terminals, of all joints and
gaskets, to prevent the recirculation of the combustion products inside
the pipes.
N.B.: check the presence of Error 38 inside the "M1 / P19" menu.
Yes
Replace the P.C.B.
ERROR 02
02
a
The wiring between the safety thermostat and P.C.B. is OK.
Over-heating safety thermostat block
No
Restore the electric connection/replace the wiring.
Yes
Check/replace the safety thermostat. If the anomaly persists, replace the P.C.B.
The safety thermostat functions regularly (intervention temperature
No
higher than 100°C).
Replace the over-heating safety thermostat.
Yes
The boiler pump functions correctly.
No
See section B
No
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the boiler by-pass;
- the opening times of any zone valve (on requirement it is possible to delay
ignition of the burner by acting on the boiler TIMER RT parameter);
- the correct functioning of any thermostatic valves.
No
Replace NTC probe.
Yes
02
b
Any CH system zone valve or cut-off cocks are open.
Yes
The NTC flow probe is OK (10 kΩ at 25°C).
Yes
Check/clean/replace the main heat exchanger (condensation module).
N.B.: it is recommended to check the correct pressure of the inlet gas and check any obstructions of the gas piping upstream from the boiler. Error 02 intervenes
also if the board detects a loss of the flame signal 6 times in 8.5 minutes.
ERROR 03
03
a
The wiring between the flue safety thermostat and P.C.B. is OK.
Flue safety thermostat block
No
Restore the electric connection/replace the wiring.
Yes
Check/replace the flue safety thermostat. If the anomaly persists, replace the P.C.B.
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03
b
Flue evacuation takes place correctly.
Technical Documentation
No
Clean/restore the correct functionality of the flue extraction elements,
checking lengths and any obstructions.
Clean/restore the correct functionality of the condensation module
checking that there are no combustion impurities deposited on the heat
exchanger (soot, oxidations, etc..).
Yes
If the anomaly persists, replace the P.C.B.
ERROR 04
The overheating safety thermostat functions regularly.
Contacts resistance block
No
Check the wiring and cleanliness of the electric connection, the continuity
of the thermostat contact and replace if necessary.
Yes
04
The connector and relative wiring between gas valve and P.C.B.
No
are OK.
Restore the electric connection/replace the wiring.
Yes
Replace the gas valve. If the anomaly persists, replace the P.C.B.
ERROR 05
05
Flow probe anomaly
The wiring between the flow probe and the board (connector X9
No
terminals 10-11) is OK.
Restore the electric connection/replace the wiring.
Yes
Replace the NTC flow probe. If the anomaly persists, replace the P.C.B.
ERROR 10
The boiler manometer displays a pressure exceeding 0.8 bar.
10
Insufficient system pressure
No
Restore the correct pressure by acting on the system filling valve.
N.B.: in this case it is always advisable to ensure that there are no leaks
in the central heating plant and check the correct factory-set value of the
expansion vessel.
No
Restore the electric connection/replace the wiring.
Yes
The wiring between the absolute pressure switch and the board is OK.
Yes
Check/replace the system pressure switch. If the anomaly persists, replace the P.C.B.
ERROR 12
12
Storage tank probe anomaly
The boiler prevents functioning in DHW mode but can function in CH mode.
The wiring between the storage tank probe and the board (connector
No
X9 terminals 6-7) is OK.
Restore the electric connection/replace the wiring.
Yes
Replace the storage tank NTC probe. If the anomaly persists, replace the P.C.B.
ERROR 15
The boiler could display the 06 error
15
The board is configured as boiler with storage tank.
(presence of the jumper between clamps 6-7 of the connector X7).
Wiring configuration error
N.B.: This board can be used for instant type boilers (VICTRIX Superior kW)
or with storage tank (VICTRIX ZEUS Superior kW ). The board automatically
recognises the type of boiler by means of the relative wiring of the P.C.B.
No
For the HERCULES Condensing boiler check the PRESENCE of the
connection jumper between clamps 6-7 of the connector X7.
Yes
Replace the P.C.B.
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ERROR 16
24 VDC is present to clamps 1-2 of the connector X7.
16
a
Technical Documentation
Fan anomaly
No
Replace the P.C.B.
No
Restore the electric connection/replace the wiring.
The wiring between the P.C.B. and fan is OK.
No
Check continuity of the cables on clamps 3-4-5 of the connector X7.
Restore the electric connection/replace the wiring.
Yes
The wiring between the P.C.B. and fan is OK.
Yes
Replace the fan. If the anomaly persists, replace the P.C.B.
16
b
Yes
Replace the fan. If the anomaly persists, replace the P.C.B.
ERROR 20
The detection electrode and the relative wiring are integral.
20
Parasite flame block
No
Check/replace detection electrode/replace wiring.
Yes
Replace the P.C.B.
ERROR 23
23
Return probe anomaly
Breakage of the return probe resistance (the anomaly does not affect boiler
functioning.
The resistance (R9) is present on the connector X9 clamps 8-9 of
No
the P.C.B.
Restore/replace the electric resistance (2.2 kΩ 1/4 W).
Yes
Replace the P.C.B.
ERROR 24
24
Push button control panel anomaly
The buttons on the control panel function regularly (check that a
No
"click" is heard when the button is pressed).
Check that there are no keys blocked or jammed under the control
panel.
Yes
Replace the display board.
ERROR 27
The boiler pump functions correctly.
Insufficient circulation
No
See section B
No
See section G
No
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the boiler by-pass;
- the opening times of any zone valve (on requirement it is possible to delay
ignition of the burner by acting on the boiler TIMER RT parameter);
- the correct functioning of any thermostatic valves.
No
Replace NTC probe.
Yes
The pump/s functions correctly.
Yes
27
Any CH system zone valve or cut-off cocks are open.
Yes
The NTC flow probe is OK (10 kΩ at 25°C).
Yes
Check/clean/replace the main heat exchanger (condensation module).
If the anomaly persists, replace the P.C.B.
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ERROR 31
31
Technical Documentation
Loss of remote control communication
The Remote Control is connected correctly.
N.B.: it is possible to use only remote controls supplied by Immergas No
(CAR or Super CAR).
Check the connection between P.C.B. (clamps 42-43) and remote control
(IN+ and IN-) carried out respecting the polarity and using a dedicated
line to prevent interference.
Yes
Replace the remote control. If the anomaly persists, replace the P.C.B.
ERROR 32
32
Low temperature zone 2 flow probe anomaly
The wiring between the flow probe and the zones digital control
No
unit (connector X9 terminals 1-2) is OK.
Restore the electric connection/replace the wiring.
Yes
Replace L.T. zone 2 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 33
33
Low temperature zone 3 flow probe anomaly
The wiring between the flow probe and the zones digital control
No
unit (connector X13 terminals 1-2) is OK.
Restore the electric connection/replace the wiring.
Yes
Replace L.T. zone 3 flow NTC probe. If the anomaly persists, replace the zones digital control unit.
ERROR 34
34
a
Low temp. zone 2 overheating safety thermostat intervention.
The wiring between L.T. zone 2 safety thermostat and the zones
No
digital control unit (connector X12 terminals 3-4) is OK.
Restore the electric connection/replace the wiring.
Yes
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
The L.T. zone 2 safety thermostat functions regularly (intervention
No
temperature higher than 55 °C).
Replace the over-heating safety thermostat.
Yes
The zone pump and the mixing valve function correctly.
No
See section G
No
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the zone by-pass;
- the opening times of any zone valve (on requirement it is possible to delay
ignition of the burner by acting on the boiler TIMER RT parameter);
- the correct functioning of any thermostatic valves.
No
Replace NTC probe.
Yes
34
b
Any CH system zone valve or cut-off cocks are open.
Yes
The L.T. zone 2 NTC flow probe is OK (10 kΩ at 25°C).
Yes
Replace the zones digital control unit.
ERROR 35
35
a
Low temp. zone 3 overheating safety thermostat intervention.
The wiring between L.T. zone 3 safety thermostat and the zones
No
digital control unit (connector X13 terminals 3-4) is OK.
Restore the electric connection/replace the wiring.
Yes
Check/replace the L.T. zone 2 safety thermostat. If the anomaly persists, replace the zones digital control unit.
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The L.T. zone 3 safety thermostat functions regularly (intervention
No
temperature higher than 55 °C).
Replace the over-heating safety thermostat.
Yes
The zone pump and the mixing valve function correctly.
No
See section G
No
Restore circulation in the CH system by acting on the closed devices
and also check:
- the correct functioning of the zone by-pass;
- the opening times of any zone valve (on requirement it is possible to delay
ignition of the burner by acting on the boiler TIMER RT parameter);
- the correct functioning of any thermostatic valves.
No
Replace NTC probe.
Yes
35
b
Any CH system zone valve or cut-off cocks are open.
Yes
The L.T. zone 2 NTC flow probe is OK (10 kΩ at 25°C).
Yes
Replace the zones digital control unit.
ERROR 36
The zones digital control unit is connected correctly.
36
IMG Bus communication loss
No
Check the connection between the boiler P.C.B. (clamps 41-44) and the
zones digital control unit (clamps 41-44).
Yes
Replace the zones digital control unit. If the anomaly persists, replace the boiler P.C.B.
ERROR 37
The boiler power supply voltage exceeds 190 VAC.
Low power supply voltage
No
Restore the correct electric power of the appliance (230 VAC ±10%).
Yes
37
The electric power supply connection wires and relative external
No
fuses are integral.
Restore the electric connection/replace the cables/external fuses.
Yes
Replace the P.C.B.
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Sections
230 VAC are present on the L-N terminals of the P.C.B.
No
Check the electric power supply upstream from the boiler and restore it.
No
See section E
No
Restore the electric connection/replace the wiring.
Yes
A
The P.C.B. fuse is integral.
Yes
The wiring between the P.C.B. and display board is OK.
Yes
Replace the P.C.B. If the anomaly persists, replace the display board.
230 VAC are present to the clamps 3-4 of connector X16 on the
No
P.C.B.
Replace the P.C.B.
Yes
20VAC are present on the boiler pump clamps.
No
Restore the electric connection/replace the wiring.
No
Release the pump by acting on the shaft after having loosened the front
cap.
No
Replace the condenser.
No
Replace the P.C.B.
No
Restore the electric connection/replace the wiring.
No
Release/replace the 3-way cartridge.
No
Adjust CO2 values to Minimum and Maximum in compliance with that
stated in the instruction book.
No
Replace NTC probe.
Yes
B
The motor shaft turns freely.
Yes
The start-up condenser is integral.
Yes
Replace the boiler pump.
CENTRAL HEATING MODE:
230 VAC are present to the clamps 1-3 of connector X1 on the
P.C.B.
C
DOMESTIC HOT WATER MODE:
230 VAC are present to the clamps 2-3 of connector X1 on the
P.C.B.
Yes
The wiring between the 3-way motor and the board is OK.
Yes
The 3-way cartridge functions regularly (it is not blocked).
Yes
Replace 3-way valve motor.
The gas valve is calibrated correctly.
Yes
D
The NTC flow probe is OK (10 kΩ at 25°C).
In DHW functioning mode, also check the DHW NTC probe.
Yes
Replace the P.C.B.
The operations stated below are indispensable for checking the quality of the relay electric contacts positioned on the board.
E
Replace the fuses checking that there are no short circuited components (pump, fan, gas valve, etc...).
Check safety device times and the complete power removal from the gas valve, operating as follows:
- close the gas supply and make a functioning request;
- check that, after 2 ignition attempts, the display shows error "01".
- with the help of the single wire wiring diagram, use a tester to check that there is no voltage on the gas valve power supply cables.
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Technical Documentation
230 VAC are present on the L-N terminals of the zones control unit
No
(green LED H11 on with fixed light).
Check the electric power supply upstream from the zones control unit
and restore it.
Yes
The connection between the zones digital control unit and boiler
No
P.C.B. (clamps 41-44) is OK
F
Restore the IMG BUS connection.
See error section 36
Yes
The zones digital control unit is configured correctly ( S25 S26 S27
No
selectors positions as per instruction book).
Restore the correct configuration of the selectors
Yes
Check the presence and effective request of the room thermostats of the respective zones. If the problem persists, replace the zones digital control
unit.
230 VAC are present to the clamps 1-3 of connector X11 on the
No
boiler P.C.B.
Check the electric power supply of the boiler P.C.B. and replace it if
necessary.
Yes
230 VAC are present to the clamps 1-2 of connector X11 on the
No
pump relay board.
Replace the anti-jamming filter.
Yes
G
230 VAC are present to the clamps 1-2 of connector X2 on the
pump relay board.
No
N.B.: Check current continuity between clamp 3 of the pump relay board
connector X1 and clamp 1 boiler P.C.B. X1 connector.
Replace the pump relay board
Yes
Release the zone pump by acting on the shaft after having loosened the front cap and replaced it, if necessary.
N.B.: there may be a fixed red light on the pump
For the HERCULES Condensing ABT version or with zones digital control unit
The connections between zones digital control unit and relative zone
No
pumps are OK
G
check and restore the relative electric connections
Yes
Release the pumps of the respective zones by acting on the shaft after having loosened the front cap and replaced, if necessary.
N.B.: there may be a fixed red light on the pumps.
STHCkW ed 0409
Disp.Non-Stop: 0729.983.578
70
HERCULES Condensing Export
http://reparatiicentrale.com.ro