Immergas INTEC 30 System External, INTEC 12 System External, INTEC 30 COMBI EXTERNAL Installation Instructions Manual
User Installation
Instruction Manual
AU
INTEC 12-30
SYSTEM
EXTERNAL
Wall mounted
heating only boiler
Our compliments for having chosen a top-quality Hunt Heating/Immergas product, able to assure well-being and safety for a long period of time, you can also
count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your boiler. Read the following pages carefully; you will be able
to draw useful suggestions regarding the correct use of the appliance, the respect of which, will conrm your satisfaction for our product.
For any interventions or routine maintenance contact Hunt Heating for Authorised Service Personal.
Dear Client,
All Immergas products are protected with packaging suitable for transport.
e material must be stored in dry environments and protected from bad weather.
e instruction book is an integral and essential part of the product and must be consigned to the new user also in the case of transfer or succession of ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instruction booklet contains technical information on how installing Immergas boilers. For other issues related to installation of boilers (i.e.: safety in work
sites, environment protection, injury prevention), comply with the laws in force and technical standards.
In compliance with legislation, the systems must be designed by qualied professionals, within the dimensional limits established by the Law. Installation and
maintenance must be performed in compliance with the regulations in force, according to the manufacturer’s instructions and by qualied professionals.
Improper installation or assembly of Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to persons, animals
and objects. Read the provided product instructions carefully in order to install the product correctly.
Maintenance must be carried out by Authorised Service Personal.
e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially
dangerous.
If errors occur during installation, operation and maintenance, due to non compliance with technical laws in force, standards or instructions contained in this
book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages and the
appliance warranty is invalidated.
e Immergas range of high eciency boilers are wall mounted, fan assisted, room-sealed boilers. e burner is lit electronically and the heat output is
controlled by a modulating gas valve.
e INTEC 12-30 SYSTEM EXTERNAL is a heating only boilers used for hydronic heating. Domestic hot water is an available option (Hunt Heating only)
used in conjunction with a stainless steel hot water storage tank, diverter valve and probe.
e boilers are supplied with a pump, pressure relief valve, expansion vessel and pressure gauge fully assembled and tested. ey are designed for use with
a fully sealed and pressurised central heating system using only Natural Gas and Universal LPG.
General recommendations
Introduction
IMPORTANT
It is the law that all gas appliances are authorised persons and registered technician in accordance with local laws and AS/NZS 5601 and AS/NZS 3500 A.
is appliance meets the requirements of IPX5D.
Failure to install this appliance correctly could lead to prosecution. It is in your own interest and that of safety to ensure that the law is complied with.
Manufacturerís instructions must NOT be taken in anyway as over-riding statutory obligations.
WARNINGS
- Do not spray aerosols in the vicinity of this appliance while it is in operation;
- do not use or store ammable materials in or near this appliance;
- do not place articles on or against this appliance;
- do not modify this appliance.
NOTE
e Boilers MUST only be used with Immergas Condensing ue components.
THIS BOILER IS NOT SUITABLE FOR POOL OR SPA HEATER UNLESS CONNECTED TO A SUITABLE APPROVED HEAT EXCHANGER.
Hydronic System (Australia) Pty Ltd PO Box 294 Braeside VIC 3195.
On conformity to AS/NZS 5263.1.2 and AS 3498.
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial documents without forewarning.
INDEX
USER pageINSTALLER page MAINTENANCE TECHNICIAN page
1 Boiler installation ...................................... 4
1.1 Installation recommendations. ................4
1.2 Main dimensions. ......................................5
1.3 Anti-freeze protection. .............................5
1.4 connections. ............................................... 5
1.5
Remote control (CARv2) (Optional). .......6
1.6 External probe (Optional). ......................6
1.7 Immergas ue systems. .............................7
1.8 Installation of intake /
exhaust terminals. .....................................8
1.9 System lling. ............................................. 9
1.10 Gas system start-up. ..................................9
1.11 Boiler start up (ignition). ......................... 9
1.12 Circulation pump. .....................................9
1.13 Boiler components. .................................10
2 Instructions for use and maintenance. .11
2.1 Cleaning and maintenance. ...................11
2.2 General warnings. ................................... 11
2.3 Control panel. ..........................................11
2.4 Using the boiler........................................ 11
2.5 Fault and anomaly signals. ..................... 12
2.6 Information menu. .................................. 14
2.7 Boiler shutdown ......................................14
2.8 Restoring central heating system
pressure. .................................................... 14
2.9 Draining the system. ...............................14
2.10 Anti-freeze protection. ...........................14
2.11 Case cleaning. .......................................... 14
2.12 Decommissioning. ..................................14
3 Boiler commissioning (initial check). ..15
3.1 Hydraulic Diagram. ................................15
3.2 Wiring diagram. ......................................16
3.3 Troubleshooting. .....................................17
3.4 Converting the boiler to other types of
gas. .............................................................17
3.5 Calibration of number of fan revs. ........ 17
3.6 Adjustment of the air-gas ratio. .............17
3.7 Checks following conversion to another
type of gas. ................................................17
3.8 Programming the P.C.B. .........................18
3.9 “Chimney sweep” function. ...................20
3.10 Pump anti-block function. .....................20
3.11 Radiators anti-freeze function. ..............20
3.12 P.C.B. periodical self-check. ................... 20
3.13 Automatic vent function. .......................20
3.14 Casing removal. .......................................21
3.15 Variable heat power. ................................ 22
3.16 Appliance check and maintenance. ......23
3.17 Combustion parameters. ........................23
3.18 Technical data. .........................................24
3.19 Exploded boiler diagram INTEC 12
System External. ......................................25
3.20 Spare part list INTEC 12 System
External. ................................................... 26
3.21 Exploded boiler diagram INTEC 30
System External. ......................................27
3.22 Spare part list INTEC 30 System
External. ................................................... 28
3.23 Boiler registration. ..................................29
3.24 Commissioning boiler check list. ..........30
3.25 Service records. ........................................31
BOILER
1
INSTALLATION
1.1 INSTALLATION
RECOMMENDATIONS.
e INTEC 12-30 SYSTEM EXTERNAL boiler
has been designed uniquely for wall-installation,
for the heating of rooms for domestic use.
- installation (according to the legislation and
technical standards in force);
- maintenance operations (including those
scheduled, periodical, ordinary and special);
INSTALLERUSER
- removal (to the outdoors in a place suitable
for loading and transporting appliances and
components) as well as any replacement with
equivalent appliances and/or components.
e wall surface must be smooth, without any
protrusions or recesses enabling access to the
rear part. ey are not designed to be installed
on plinths or oors (Fig. 1-1).
By varying the type of installation the
classication of the boiler also varies, precisely:
- Type C boiler Uses concentric or Coaxial pipes
systems Hunt Heating supplies the correct ue
for this application.
Only professionally heating/plumbing
technicians are authorised to install Immergas
gas appliances.
Installation must be carried out according to
regulation standards AS/NZS 5601 or Local
Authority laws.
Installation of the INTEC 12-30 SYSTEM
EXTERNAL boiler when powered by Universal
LPG must also comply with the rules regarding
gases with a greater density and be installed
to meet all local and AS/NZS 5601 LAWS.
Before installing the appliance, ensure that it
is delivered in perfect condition; if in doubt,
contact the supplier immediately. Packing
materials (staples, nails, plastic bags, polystyrene
foam, etc.) constitute a hazard and must be kept
out of the reach of children. Leave adequate
space above the boiler for possible water and
ue removal connections. Keep all ammable
objects away from the appliance (paper, rags,
plastic, polystyrene, etc.). Do not place household
appliances underneath the boiler as they could
be damaged if the safety valve intervenes (if not
conveyed away by a draining funnel), or if there
are leaks from the connections; on the contrary,
the manufacturer cannot be held responsible for
any damage caused to the household appliances.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o immediately and
contact a qualied technician (e.g. Hunt Heating
Service Dept which has specically trained sta
and original spare parts). Do not attempt to
modify or repair the appliance alone.
Failure to comply with the above implies personal
responsibility and invalidates the warranty.
Installation Standards:
- Installations MUST comply with AS/NZS
5601 and Local laws. Use AS/NZS 5601 as
a guide for specic locations see below.
- Installation is prohibited on the vertical
projection of the cooking surface.
- Installation is also prohibited in places/
environments that constitute common parts
of oce condominiums such as stairs, cellars,
entrance halls, attics, los, escape routes,
etc. if they are not located inside technical
compartments under the responsibility of
each individual building and only accessible
to the user (for the features of the technical
compartments, see the technical standards in
force).
Attention: wall mounting of the boiler must
guarantee stable and ecient support for the
boiler.
Use the bracket supplied as standard, xing it
with proper plugs according to the wall type. e
installer is responsible for the choose of the correct
plugs, according to the technical standard. Place
the supplied bracket, following the indications
reported on drawing 1-3 preferring the holes
indicated in the before mentioned draw.
N.B.: to fix the bracket we suggest to use
hexagon screw or countersunk screw for plug.
ese boilers are used to heat water to below
boiling temperature in atmospheric pressure.
ey must be attached to a heating system suitable for their capacity and voltage.
YES NO
1-1
Flue terminal positions
Use as a guide only. Refer to AS/NZS 5601 or gas tting rules for specic location.
h
j
MAINTENANCE TECHNICIAN
j
W
f
c
k
j
D
I
k
Flue terminal positions. Shaded area indicates prohibited area
Ref. Item Min. Clearance mm
Below eaves, balconies and other projections (Appliances over 50MJ/h) 300
a
From the ground, above a balcony or other surface 300
b
From a return wall or external wall 300
c
From a gas meter 1000
d
From an electricity meter or fusebox/breaker panel 500
e
From a drain pipe or soil pipe 75
f
Horizontally from any building structure or obstruction facing a ue terminal 500
g
From any other ue terminal, cowl or combustion air intake 300
h
Horizontally from any opening window, door, non-mechanical air inlet or other opening into a building with the exception of sub-oor ventilation 300
j
From a mechanical air inlet including a spa blower 1000
k
Vertically below an opening window, non-mechanical air inlet or any other opening into a building with the exception of sub-oor ventilation 500
n
• e location of the ue terminal must comply with the clearances shown on this page.
If you are unsure about clearances not indicated here, in general
refer to AS/NZS 5601 or your local autority.
D - Door
a
T
e
h
h
T
g
e
P
c
d
g
M
k
b
T
I - Mechanical air inlet
M - Gas meter
T - Flue Terminal
W - Window
1-2
• All measurements are the minimum clearances required.
• Terminals must be positioned so to aviod combustion products
entering the building.
4
1.2 MAIN DIMENSIONS.
Height
(mm)
990 470 310
CONNECTIONS
CORD INLET GAS SYSTEM
C G R F
1/2” 3/4” 3/4” 3/4”
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -5°C. e boiler comes
standard with an anti-freeze function that
activates the pump and burner when the system
water temperature in the boiler falls below 4°C.
e anti-freeze function is only guaranteed if:
- the boiler is correctly connected to gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in no ignition block (Par. 2.5);
- the boiler essential components are not faulty.
In these conditions the boiler is protected against
freezing to an env ironmental temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature falls
below -5°C and in the event there is no gas, or
the boiler goes into ignition block, the appliance
may freeze.
To prevent the risk of freezing follow the
instructions below:
- Protect the central heating circuit from
freezing by introducing a good quality antifreeze liquid (specically for central heating
systems), (Fernox), carefully following the
manufacturer's instructions regarding the
percentage necessary with respect to the
Key:
G - Gas supply (not supplied as standard)
R - Return - CH
F - Flow - CH
SC - Condensate drain (supplied as standard)
(minimum internal diameter Ø13 mm)
C - Cold ll
Width
(mm)
Depth
(mm)
minimum temperature required for preserving
the system.
The boilers is made from materials that are
resistant to ethylene and propylene glycol-based
anti-freeze liquids.
For life and possible disposal, follow the
supplier's instructions.
- Protect the condensate drain trap and circuit
board against freezing by using an accessory
that is supplied on request (anti-freeze kit)
comprising two electric heating elements,
the relevant cables and a control thermostat
(carefully read the installation instructions
contained in the accessory kit pack).
Boiler anti-freeze protection is thus ensured only if:
- the boiler is correctly connected to gas and
electricity power supply circuits and powered;
- the anti-freezing kit components are ecient.
In these conditions the boiler is protected against
freezing to temperature of -15°C.
e warranty does not cover damage due to interruption of the electrical power supply and failure
to comply with that stated on the previous page.
N.B.: if the boiler is installed in places where the
temperature falls below 0°C the domestic water
and heating attachment pipes must be insulated.
1-3
1.4 CONNECTIONS.
Gas connection.
Our boilers are designed to operate with NG
and Universal LPG. Supply pipes must be sized
correctly to relevant gas codes.
Before connecting the gas line, carefully clean
inside all the supply pipes to remove any residue
that could impair boiler eciency. Also make
sure the gas corresponds to that for which
the boiler is prepared (see boiler data-plate).
If dierent, the appliance must be converted
for operation with the other type of gas (see
converting appliance for other gas types). e
dynamic gas supply (NG or Universal LPG)
pressure must also be checked according to
the type used in the boiler, which must be in
compliance, as insufficient levels can reduce
boiler output and cause malfunctions.
Ensure correct gas isolation valves connection.
e gas supply pipe must be suitably dimensioned
according to current regulations in order to
guarantee correct gas flow to the burner in
conditions of maximum boiler.
N.B.: there is a special adhesive label inside the
built-in frame displaying the layout of the boiler
connections.
Fuel gas quality. The appliance has been
designed to operate with gas free of impurities;
otherwise it is advisable to fit special filters
upstream from the appliance to restore the
purity of the gas.
Cold Water connection.
Attention: Filling the system, Hunt Heating
recommends the use of Auto fill valves sold
as an optional extra. Once satisfactory system
pressure is achieved, Auto ll valve MUST BE
TURNED OFF.
Attention: in order not to void the warranty
before making the boiler connections, carefully
clean the heating system on the primary heat
exchanger (pipes, radiators, etc.) with special
cleaning products (Fernox) to remove any
deposits that could compromise correct boiler
operation.
Chemical treatment of the heating system water
is required, in compliance with the technical
standards in force, in order to protect the system
and the appliance from deposits (e.g., lime scale),
slurry or other hazardous deposits. Products like
Fernox are suitable for this appliacation. Use
of backow devices are maditory when using
chemicals/water treatments or alternatively,
ensure physical air break.
Heating Water connections must be made using
approved valves this helps with maintenance and
servicing. Hunt Heating can provide valves as
optional extras.
e boiler safety valve outlet must be connected
to a Tun Dish or Directly to a suitable overow
outlet.
INSTALLERUSER
MAINTENANCE TECHNICIAN
5
Condensate drain. To drain the condensate
produced by the appliance, it is necessary to
connect to the sewer system by means of acid
condensate resistant pipes i.e. p.v.c. having an
internal diameter of at least 13 mm. e system
connecting the appliance to the drainage system
must be carried out in such a way as to prevent
freezing of the liquid contained. Connections
must comply with national and local regulations
on discharging to waste waters, condensate must
not discharge to storm water. Pipes must be on
gradient to drain.
INSTALLERUSER
N.B.: ll the trap with water before operating
the boiler.
Electrical connection: The “INTEC 12-30
SYSTEM EXTERNAL” boiler has an IPX5D
protection rating for the entire appliance.
Electrical safety of the appliance is reached only
when it is correctly connected to an ecient
earthing system as specied by current safety
standards.
Attention: Immergas/Hunt Heating declines
any responsibility for damage or physical injury
caused by failure to connect the boiler to an
ecient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation
corresponds to maximum absorbed power
specifications as shown on the boiler dataplate. The boilers come complete with a 1.5
metre power cable that includes an Australian
electrowelded plug. The plug is of type I,
compliant with standard AS 3112. e power
cable must be connected to a 240V ±10% / 50Hz
mains respecting L-N polarity and the earth
connection
. When replacing the power
supply cable, contact a qualied technician (e.g.
Hunt Heating Service Dept) (Fig. 1-4).
In the event of mains fuses replacement on the
connection board, use 3.15A fast fuses. For the
main power supply to the appliance, never use
adapters, multiple sockets or extension leads.
Note: If the condensate cannot be on a gradient
and terminate to drain, then a suitable condensate
neutraliser must be used (available for purchase
from Hunt Heating).
1.5
REMOTE CONTROL CARV2
OPTIONAL.
e boiler is prepared for the application remote
control CAR
(Fig. 1-5).
Immergas remote control CAR
V2
, which is available as optional kit.
V2
is connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the accessory kit.
• In addition to the functions described in the
previous point, the CAR panel
V2
enables the
user to control all the important information
regarding operation of the appliance and the
heating system with the opportunity of easily
intervening on the previously set parameters
without having to go to the place where
the appliance is installed. e CAR
V2
panel
is equipped with self-diagnosis to display
any boiler functioning abnormalities. The
climate chrono-thermostat incorporated into
the remote panel enables the system flow
temperature to be adjusted to the actual needs
of the room being heated, in order to obtain
the desired room temperature with extreme
precision and therefore with evident saving in
running costs. e chrono-thermostat is fed
directly by the boiler by means of the same 2
wires used for the transmission of data between
boiler and chrono-thermostat.
V2
CAR
(Optional). e operations described
below must be performed aer having removed
the voltage from the appliance. Any CARV2 must
be connected by means of terminals IN+ and
IN- (on the CAR
V2
terminal plate), respecting
polarity at boiler PCB, where IN+ connects to
terminal 44 and IN- connects to terminal 41
(See Fig. 1-6).
Attention: if the Comando Amico Remoto
V2
(CARV2) remote control is used, arrange two
separate lines in compliance with current
regulations regarding electrical systems. No
boiler pipes must ever be used to earth the
electric system or telephone lines.
Ensure elimination of this risk before making
the boiler electrical connections (ALL
ELECTRICAL CONNECTION MUST MEET
ALL LOCAL REGULATIONS).
1.6 EXTERNAL PROBE OPTIONAL.
e boiler is prepared for the application of the
external probe (Fig. 1-7), which is available as an
optional kit. Refer to the relative instruction sheet
for positioning of the external probe.
The probe can be connected directly to the
boiler electrical system and allows the max.
system ow temperature to be automatically
decreased when the external temperature
increases, in order to adjust the heat supplied to
the system according to the change in external
temperature. e external probe always operates
when connected, regardless of the presence or
type of room chrono-thermostat used and can
work in combination with Immergas chronothermostats. e correlation between system
flow temperature and external temperature
is determined by the position of the selector
switch on the boiler control panel according to
the curves shown in the diagram (Fig. 1-8). e
electric connection of the external probe must be
made on clamps 38 and 39 on the boiler P.C.B.
(Fig. 3-2).
NB: Thermostat connections if using own
after market thermostat, after removing
manufacturers link, connect to terminals 40
and 41 (Fig. 3-2).
MAINTENANCE TECHNICIAN
31
POWER SUPPLY CABLE
45
58
1-4
1-7
1-5 1-6
Position of the central heating temperature
user adjustment
1-8
6
1.7 IMMERGAS FLUE SYSTEMS.
Immergas supplies various solutions separately
from the boilers regarding the installation of air
intake terminals and ue extraction, which are
fundamental for boiler operation.
Attention: the boiler must be installed
exclusively with an original Immergas “Green
Range” air intake and fume extraction system
in plastic, as envisioned by the Standards
in force. is system can be identied by an
identification mark and special distinctive
marking bearing the note: “only for condensing
b oi l er s ”.
• Resistance factors and equivalent lengths.
Each ue component has a Resistance Factor
based on experimental tests and specified
in the table below. e Resistance Factor for
individual components is independent from
the type of boiler on which it is installed
and has a dimensionless size. It is however,
conditioned by the temperature of the uids
that pass through the pipe and therefore,
varies according to applications for air intake
or ue exhaust. Each single component has a
resistance corresponding to a certain length
in metres of pipe of the same diameter; the
so-called equivalent length, obtained from the
ration between the relative Resistance Factors.
All boilers have an experimentally obtainable
maximum Resistance Factor equal to 100.
The maximum Resistance Factor allowed
corresponds to the resistance encountered with
the maximum allowed pipe length for each
type of Terminal Kit. is information allows
calculations to be made to verify the possibility
of setting up various ue congurations.
Positioning of the gaskets (black) for “green
range” ue extraction systems. Position the
gasket correctly (for bends and extensions) :
- gasket with notches, to use for bends;
- gasket without notches, to use for extensions.
N.B.: if component lubrication (already carried
out by the manufacturer) is not sucient, remove
the residual lubricant using a dry cloth, then to
ease tting spread the elements with common
or industrial talc.
With ue gaskets installed correctly, gently push
ue components together fully.
N.B.: considerations need to be made when
sighting/terminating ue extraction system as
an element of plumage will occur when boiler
is in operation.
N.B.: for safety purposes, do not obstruct the
boiler intake-exhaust terminal, even temporarily.
INSTALLERUSER
MAINTENANCE TECHNICIAN
7
1.8 INSTALLATION OF INTAKE /
EXHAUST TERMINALS.
• Type C conguration, sealed chamber and
fan assisted.
Horizontal intake - exhaust terminal Ø60/100
(supplied as standard). Assembly (Fig. 1-9):
install the gaskets (1) and (2) in the concentric
ange (already installed).
Couple the bend (3) with the concentric ange up
to the stop aer having checked that the gaskets
are tted (4) and (5) in the female end.
Mount the casing front referring to Paragr. 3.14.
INSTALLERUSER
Couple the terminal pipe (8) with the male end
(smooth) into the female end (with lip seals) of
the bend (3) up to the stop, making sure that
the external wall sealing plate (7) has been tted
and checking it is on the casing front and gasket
(6); this will ensure proper sealing and joining
of the elements.
N.B.: Flue conguration supplied standard
with all INTEC external boilers.
6
7
8
C
12
3
4
5
2
1
MAINTENANCE TECHNICIAN
Components:
Concentric ange intake gasket (1)
Concentric ange exhaust gasket (2)
90° concentric bend (3)
90° concentric bend exhaust gasket (4)
90° concentric bend intake gasket (5)
Gasket (6)
External wall sealing plate (7)
Concentric intake/exhaust terminal Ø 60/100 (8)
Flue kit complete 60/100 Australia code: 3.026007
1-9
8
1.9 SYSTEM FILLING.
Once the boiler is connected, proceed with
system lling through the arranged lling valve,
which can be connected to the return pipe system
and as close as possible to the boiler (Fig. 1-11),
or ideally via connection ‘C’.
Filling is performed at low speed to ensure release
of air bubbles in the water via the boiler and
heating system vents.
e boiler has a built-in automatic venting valve
on the circulator. Check if the cap is loose. Open
the radiator air vent valves.
Close radiator vent valves when only water
escapes from them.
Close the lling valve when the boiler manometer
indicates approx. 1.2 bar.
N.B.: during these operations, turn on the circulating pump at intervals by means of the main
selector switch on the control panel. Vent the
circulation pump by loosening the front cap and
keeping the motor running. Only open for a few
seconds at a time.
In presence of the automatic lling, the auto ll
valve must necessarily be isolated aer system
is pressurized.
1.10 GAS SYSTEM STARTUP.
To start up the system, make reference to the
Standard: is divides the systems and therefore
the start-up operations into three categories: new
systems, modied systems, re-activated systems.
In particular, for new gas systems:
- open windows and doors;
- avoid presence of sparks or naked ames;
- bleed all air from pipelines;
- check that the internal system is properly sealed
according to specications.
1.11 BOILER START UP IGNITION.
For first ignition, the following must be
performed:
- check that the internal system is properly sealed
according to specications;
- ensure that the type of gas used corresponds
to boiler settings;
- switch the boiler on and ensure correct
ignition;
- make sure that the gas ow rate and relevant
pressure values comply with those given in the
manual;
- ensure that the safety device is engaged in the
event of gas supply failure and check activation
time;
- check activation of the master switch located
upstream from the boiler and in the boiler;
- check that the intake/exhaust concentric
terminal (if tted) is not blocked.
e boiler must not be started up even if only
one of the checks should be negative.
N.B.: the boiler preliminary check must be carried
out by a qualied technician. e conventional
boiler warranty is valid as of the date of testing if
not commissioned by a qualied technician.
1.12 CIRCULATION PUMP.
e “INTEC 12-30 SYSTEM EXTERNAL” series
boilers are supplied with a built-in circulation
pump with 3-position electric speed control.
e boiler does not operate correctly with the
circulation pump on speed one. To ensure
optimal boiler operation, in the case of new
system it is recommended to use the pump at
maximum speed, position 3.
Pump release. If, aer a prolonged period of
inactivity, the circulation pump is blocked,
unscrew the front cap and turn the motor sha
using a screwdriver. Take great care during this
operation to avoid damage to the motor.
INSTALLERUSER
Head available to the system (INTEC 12).
C
Head (kPa)
Head available to the system (INTEC 30).
A
D
B
C
B
Flow rate (l/h)
A
O)
2
Head (m H
A = Head available to the system at maxi-
mum speed with by-pass closed.
B = Head available to the system at maxi-
mum speed with by-pass open.
C = Head available to the system at second
speed with by-pass closed.
D = Head available to the system at second
speed with by-pass open.
O)
2
1-10
MAINTENANCE TECHNICIAN
Head (kPa)
D
Flow rate (l/h)
Head (m H
9
1.13 BOILER COMPONENTS.
INSTALLERUSER
MAINTENANCE TECHNICIAN
Key:
1 - Storage tank unit delivery return by-pass
2 - Gas valve
3 - Condensate drain trap
4 - System pressure switch
5 - Flow probe
6 - Safety thermostat
7 - Gas nozzle
8 - Venturi
9 - Detection electrode
10 - Condensation module
11 - System expansion vessel
12 - Flue probe
13 - Manual air vent valve
14 - Sample points (air A) - (ue gases F)
G - Gas supply
R - Return
F - Flow
C - Cold ll
15 - Negative signal pressure point
16 - Positive signal pressure point
17 - Heat exchanger safety thermofuse
18 - Burner
19 - Ignition electrode
20 - Air intake pipe
21 - Igniter
22 - Fan
23 - Air vent valve
24 - Return probe
25 - Boiler pump
26 - 3 bar safety valve
27 - 3-way valve (motorised)
28 - By-pass
29 - System draining valve
1-11
10
INSTRUCTIONS FOR USE
2
AND MAINTENANCE.
2.1 CLEANING AND MAINTENANCE.
Attention: the boiler and heating systems must
undergo periodical maintenance, combustion
and energy eciency checks in compliance with
AS/NZS 5601, by a qualied licensed operative.
this insure that optimal safety performance
and operation of the boiler remains unchanged
over time.
We recommend your appliance is serviced every
24 months (see Par. 3.16).
2.2 GENERAL WARNINGS.
Use of the boiler by unskilled persons or children
is strictly prohibited.
If temporary shutdown of the boiler is required,
proceed as follows:
2.3 CONTROL PANEL.
2-1
a) drain the heating system if anti-freeze is not
used;
b) shut-o all electrical, water and gas supplies.
In the case of work or maintenance to structures
located in the vicinity of ducting or devices for
ue extraction and relative accessories, switch o
the appliance and on completion of operations
ensure that a qualied licensed operative checks
eciency of the ducting or other devices.
Never clean the appliance or connected parts
with easily ammable substances.
Never leave containers or ammable substances
in the same environment as the appliance.
• Attention: the use of components involving use
of electrical power requires some fundamental
rules to be observed:
- do not touch the appliance with wet or moist
parts of the body; do not touch it when
barefoot;
- the appliance power cable must not be replaced
by the user;
- in the event of damage to the cable, switch
off the appliance and contact a qualified
technician;
- if the appliance is not to be used for a certain
period, disconnect the main power switch.
INSTALLERUSER
Key:
1 - O/Stand-by/On Button
2 - Summer/Winter Button
3 - Reset button
4 - Information buttons
5 - Domestic hot water temperatureselector
switch
6 - Central heating water temperature selector
switch
7 - Boiler manometer
To access the control panel, remove the protection panel (6) from the casing front by unscrewing the bolt (7) and removing it as shown in
Fig. 3-4a.
2.4 USING THE BOILER.
Before ignition make sure the heating system
is lled with water and that the manometer (7)
indicates a pressure of 1 ÷ 1.2 bar (Fig. 2-1).
- Open the gas cock upstream from the boiler.
- Press the button (1) until the display switches
on. At this point, the boiler goes to the state
previous to switch-o.
- If the boiler is in stand-by, press the button (1)
again to activate it. If this is not the case, go to
the next point.
- Press button (2) in sequence and take the boiler
to summer (
) or winter ( ) position.
8 - DHW production phase functioning active
9 - Boiler in block does not require release via
“RESET” button
10 - Flame presence symbol and relative power
scale
11 - Functioning in summer mode
12 - Functioning in winter mode
13 - Room central heating active phase functio-
ning
• Summer (
functions only to produce the DHW, the
temperature is set via the selector (5) and the
relative temperature is shown on the display
via the indicator (14).
• Winter (
both for producing domestic hot water and
heating the environment. e temperature of
the DHW is always regulated via the selector
(5), the heating temperature is regulated via
selector (6) and the relative temperature is
shown on the display via the indicator (14).
From this moment the boiler functions
automatically. With no demand for heat (heating
or domestic hot water production) the boiler
goes to “standby” function, equivalent to the
boiler being powered without presence of ame.
): in this mode the boiler
): in this mode the boiler functions
14 - Temperature indicator, boiler info and
error codes
15 - Boiler in Stand-by mode
16 - Presence of external connected devices
17 - Solar function active
18 - Functioning with external temperature
probe active (optional)
19 - Boiler connected to remote control V2
(optional)
20 - Not used on this model
Each time the burner ignites, the relative ame
present symbol is displayed (10) with relative
power scale.
• Operation with Comando Amico Remoto
remote control
V2
is connected, the ( ) symbol will
CAR
appear on the display. e boiler regulation
parameters can be set via the CARV2 control
panel and the reset button (3) remains active
on the boiler control panel, along with the
switch-o button (1) (“o ” mode only) and the
display where the functioning state is shown
Important: if the boiler is put into “off ”
mode, the “ERR>CM” connection error
symbol will appear on the CAR
however powered constantly so as not to loose
memorised programs.
V2
(CARV2) (Optional). If the
V2
. e CAR V2is
MAINTENANCE TECHNICIAN
11
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