Fondital ELBA DUAL Quick start guide

INSTALLATION,
USE AND MAINTENANCE
ELBA DUAL
EN
IST 03 C 202-03

Thank you for choosing our boilers.
Please read these installation and maintenance instructions with care.
Please note that the boiler must only be installed, repaired and serviced by qualified personnel.
2

3
General information for installers, service engineers and users
This INSTRUCTION MANUAL, which
is an integral and indispensable part
of the product, must be handed
over to the user by the installer
and must be kept in a safe place for
future reference. The manual must
accompany the boiler should it be
sold or moved.
This boiler must be used for the
purpose for which it has been
designed. Any other use is considered
incorrect and therefore dangerous.
The boiler must be installed in
compliance with applicable laws
and standards and according to the
manufacturer’s instructions given in
this manual. Incorrect installation may
cause injury or damage, for which the
manufacturer cannot be held liable.
Damage or injury caused by incorrect
installation or use or failure to observe
the manufacturer’s instructions shall
relieve the Manufacturer of all liability
whether under a contract or not. Before
installing the boiler, check that the
specification meets the requirements
of the system in which it is to be
installed.
Check that the boiler is intact and
that it has not been damaged during
transport and handling. Do not install
equipment which is clearly damaged
or faulty.
Do not obstruct the air intake or heat
dissipation grates.
Only original accessories must be used
for all boilers supplied with optionals
or kits (including electrical ones).
All the packaging materials can be
recycled and should be sent to specific
waste management sites.
Keep the packaging out of the reach
of children as it constitutes a serious
hazard.
In the event of a malfunction, switch
off the boiler immediately. Do not
attempt to make any repairs and
contact a qualified technician.
Original parts must be used for all
repairs to the boiler. Failure to do this
may jeopardize the safety of the boiler
and create a serious hazard.
To guarantee efficiency and correct
operation of the boiler, it is legally
binding to service the boilers once
a year according to the schedule
indicated in the relevant section of
this manual.
If the boiler is not used for a certain
length of time, switch off the electricity
and fuel supply. Place some calcium
carbonate inside the combustion
chamber to absorb moisture. Should
there be a risk of freezing, add
anti-freeze. It is not advisable to
empty the system as this may result in
damage. Use a specific anti-freeze for
multi-metal heating systems.
IMPORTANT
If there is a smell of gas, when using a
gas-fired boiler, always follow these rules.
- Do not operate any electrical switches
or electrical appliances.
- Do not light any flames and do not smoke.
- Close the main gas tap.
- Open all doors and windows wide.
- Contact a Service Centre, a qualified
installer or the gas supply company.
Never use a flame to detect a gas
leak.
WARNING
Thisboilerhas been built forinstallation
only in the country indicated on the
rating plate. Installation in any other
country may cause injury or damage.

Table of contents
To the user ...................................................................................................................................................... page 2
General information for installers, service engineers and users .................................................. page 3
1 Instructions for the user ..................................................................................................................... page 5
1.1 Control panel .................................................................................................................................. page 5
1.2 Boiler operation ............................................................................................................................. page 6
1.2.1 Switching on ................................................................................................................... page 6
1.2.2 Burner shutdown ........................................................................................................... page 6
1.2.3 Shutdown due to overheating .................................................................................. page 6
1.3 Maintenance ................................................................................................................................... page 6
1.4 Information for the user ............................................................................................................. page 6
2Technical features and dimensions ................................................................................................ page 7
2.1 Technical features ......................................................................................................................... page 7
2.2 Dimensions ..................................................................................................................................... page 8
2.3 Technical characteristics ............................................................................................................. page 9
3Instructions for the installer ........................................................................................ page 10
3.1 Installation standards .................................................................................................................. page 10
3.2 Installation ....................................................................................................................................... page 10
3.2.1 Packaging ......................................................................................................................... page 10
3.2.2 Choosing where to install the boiler ....................................................................... page 10
3.2.3 Installing the boiler ....................................................................................................... page 10
3.2.4 Room ventilation ............................................................................................................ page 10
3.2.5 Flue gas system .............................................................................................................. page 10
3.2.6 Choosing and installing the burner ........................................................................ page 11
3.2.7
Measuring combustion efficiency ................................................................................... page 11
3.2.8 Connecting to the gas mains ..................................................................................... page 11
3.2.9 Connecting to the fuel oil supply system .............................................................. page 11
3.2.10 Connecting to the power mains ............................................................................ page 11
3.2.11 Hydraulic connection ................................................................................................. page 12
3.2.12 Manufacturer kits ........................................................................................................ page 12
3.3 Filling the system ......................................................................................................................... page 12
3.4 Starting up the boiler .................................................................................................................. page 12
3.4.1 Preliminary checks ........................................................................................................ page 12
3.4.2 Switching on and off .................................................................................................... page 12
3.4.3 Regulating thermal output ........................................................................................ page 12
3.5 Wiring diagrams ............................................................................................................................ page 13
3.5.1 Connections .................................................................................................................... page 13
3.5.2 General layout ................................................................................................................ page 13
3.5.3 Topographical layout .................................................................................................... page 14
4 Maintenance ............................................................................................................................................. page 15
4

5
Main switch with power light
(green) (A)
When the switch is turned to
position 0, the boiler is off and the
green power light is off.
When the switch is in position I, the
boiler is powered on and the light
on the switch is on.
CH temperature control (B)
With this knob you can set the
temperature of the heating water,
range 49°C to 82°C.
Heating pump operating light
(yellow) (C)
When this light is on, it means that
the system is in heating mode.
Overheating shutdown light (red)
(D)
When this light is on, it means the
safety thermostat has cut in due to
overheating and needs to be reset
manually.
Burner light (yellow) (E)
This light indicates that the burner
is in operation.
Thermometer (F)
The thermometer displays the
temperature of the water.
Safety thermostat with manual
reset (G)
The safety thermostat switches
the boiler off when there is a
malfunction. Remove the cap and
press the reset button.
1 Instructions for the user
1.1 Control panel
A- Main switch with power light
(green)
B- CH temperature control
C- Heating pump operating light
(yellow)
D- Overheating shutdown light (red)
E- Burner light (yellow)
F- Thermometer
G- Safety thermostat with manual
reset
pic. 1
DC EF
AB G

1.2 Boiler operation (pic. 1)
1.2.1 Switching on
* Open the fuel tap.
* Turn the boiler main switch Ato
the ON position (the light comes
on).
* Turn the heating water
temperature control knob Bto the
required setting.
* Set the room temperature value
on the room thermostat (if there is
one).
* Light Cis on when the heating
system is in operation.
* Light Eis on when the burner is in
operation.
Warning: When starting gas boilers
after a long period of inactivity,
especially LPG-fired boilers, there
may be air bubbles in the pipes.
So, before switching the boiler on,
turn on another gas appliance such
as a cooker ring.
Even so, the boiler may not switch
on once or twice. It is therefore
necessary to press the reset button
(see paragraph below).
1.2.2 Burner shutdown
If the boiler does not function
correctly, the burner cuts out
automatically and the relevant light
comes on. It is necessary to proceed
as follows:
* Check the fuel supply. For gas
burners make sure the gas tap is
open and gas is being supplied, for
example by lighting a gas ring.
* Press the burner reset button. If
the boiler does not start up after
two attempts, contact an authorised
Service Centre or a qualified
technician.
If the burner cuts out frequently,
this means there is a recurring
malfunction, so contact a qualified
technician or an authorised Service
Centre.
1.2.3 Shutdown due to
overheating
If red light Dcomes on due to
overheating, it means the safety
thermostat has cut in due to a recurrent
malfunction. Contact an authorised
Service Centre or a qualified technician.
1.3 Maintenance
It is a legal requirement to have the
boiler and the burner serviced once
a year.
If the boiler is serviced regularly, it
will optimise efficiency, safeguard
the environment and not cause
damage or injury. The boiler must
be serviced by qualified personnel.
The user may only clean the
exterior casing of the boiler, using
a suitable cleaning product.
Do not use water!
1.4 Information for the user
The user only has access to parts
of the boiler which can be reached
without the need for specific
tools.The user must never remove
the outer casing of the boiler or
tamper with the parts inside.
NO ONE IS AUTHORISED TO
MODIFY THE BOILER IN ANY
WAY, NOT EVEN QUALIFIED
TECHNICIANS.
Qualified technicians are authorised
to install specific original kit on the
boiler.
The Manufacturer declines all
liability for injury or damage
resulting from attempts to tamper
with
the boiler or incorrect operation.
The heating system can be protected
against freezing by using a specific
anti-freeze for multi-metal systems.
Do not use car engine anti-freeze
products. Check the
level and quality of the anti-freeze
regularly.
The boiler has a thermometer
displaying the water temperature.
6

2.1 Technical features
This is a floor-standing gas or oil
boiler with a cast iron heat exchanger
with 3 smoke passes, working with
oil or gas free-standing blown-air
burners. The following models are
available:
23 with 24 kW heat output
33 with 33 kW heat output
43 with 43 kW heat output
53 with 53 kW heat output
63 with 63 kW heat output
73 with 73 kW heat output
The boilers comply with the basic
requirements of the following EEC
directives:
- Gas Directive 90/396/EEC of 29
June 1990
- Thermal Efficiency Directive 92/42
EEC of 21 May 1992
- EMC Directive 89/336/EEC of 3 May
1989 amended by Directive 92/31/
EEC of 28 April 1992
- European Community’s LowVoltage
Directive 73/23/EEC of 19 February
1973 amended by Directive 93/68/
EEC of 22 July 1993 and are fitted
with all the safety features required
by the applicable laws.
The main technical features of the
boilers are listed below.
* High-efficiency cast iron heat
exchanger with 3 smoke passes
* Extra thick glass wool insulation
(50 mm) with aluminium craft
* Epoxy-coated zinc-plated metal
casing
* Main switch with light
* Lights indicating power on,
heating pump on, burner on, and
overheating shutdown
* Heating temperature control
(49/82°C).
* Safety thermostat (110°C)
* Wiring system with printed circuit
* Designed for electrical connection
to a heating pump
* Designed for electrical connection
to a low water pressure switch
* Designed for connection to a
remote D.H.W. storage tank control
board (optional kit)
* Designed for connection to a
climate control unit (optional kit)
* Designed for connection to a
control board for managing up to
three heating areas (optional kit)
* Thermometer
* Drain cock
2 Technical features and dimensions
7

8
MODEL L Flow A Return B
23 400 1" 1/4 1/4"
33 525 1" 1/4 1/4"
43 625 1" 1/4 1/4"
53 700 1" 1/4 1/4"
63 800 1" 1/4 1/4"
73 900 1" 1/4 1/4"
pic. 2
2.2 Dimensions

9
2.3 Technical characteristics
Note
The installation of blown-air burners, according to the standards in force (EC marking as per Directives: CEE/73/23 – CEE/89/336; EN267
regulation), must be done respecting the burner manufacturer instructions and making a burner adjusting which permits to obtain CO2
values as indicated below.
MODELS
23 33 43 53 63 73
EC efficiency rating      
Max. heat output
kW 24 33 43 53 63 73
Heat input kW 26.6 36.3 47.2 57.9 68.5 79.3
Efficiency at nominal load %90 91 91 91.5 92 92
Efficiency at reduced load (30%) %89.7 90.7 90.7 91.1 91.6 91.6
No. of elements of the heat exchanger
345678
Net weight Kg 125 151 177 203 229 255
Water content l15.5 19.5 23.5 27.5 31.5 35.5
Min. flow rate l/h 680 950 1230 1520 1800 2150
Combustion chamber length mm 208 308 408 508 608 708
Flue gas temperature °C 210 190 188 202 181 175
Flue gas flow rate Kg/h 40 53.2 69.3 8.1 97.7 114.5
Working pressure bar 444444
Load loss on flue side at max. heat
input
Pa 13 25 40 40 50 65
Load loss on water side 10° ∆T Pa 4800 5600 6000 7100 10000 11200
Load loss at ∆T = 50° %0.3 0.3 0.3 0.3 0.3 0.3
Max. burner hole Ø mm 110 110 110 110 110 110
Flue Ø mm 150 150 150 150 150 150
Working temperature range °C 49 - 82 49 - 82 49 - 82 49 - 82 49 - 82 49 - 82
Voltage/frequency V-Hz 230/50 230/50 230/50 230/50 230/50 230/50
Fuse on mains A444444
Manufacturer Delavan W - Steinen Q - Danfoss S
Flow rate Usgal/h 0.65 0.75 1.00 1.10 1.35 1.65
Angle/cone 60° W 60° B
Recommended nozzles for blown-air oil burners
Fuel CO2
natural gas G20 9 ÷ 9.7
natural gas G25 8.8 ÷ 9.5
butane gas G30 10.7 ÷ 11.6
propane gas G31 10.5 ÷ 11.4
oil 12.5 ÷ 13

10
3 Instructions for the installer
3.1 Installation standards
The boiler must be installed in
compliance with current laws and
standards which are considered an
integral part of this handbook.
3.2 Installation
3.2.1 Packaging
The boiler comes packed in a sturdy
cardboard box on a wooden pallet.
Take the boiler out of the box
and check that it is intact. All the
packaging materials can be recycled
and should be sent to specific waste
management sites.
Keep the packaging out of the
reach of children as it is a source of
hazard.
The Manufacturer declines all
liability for damage or injury
resulting from failure to follow this
rule.
Inside the box is a bag containing the
handbook for the installation, use and
maintenance.
3.2.2 Choosing where to install the
boiler
Rules to bear in mind when choosing
the place:
- It is advisable to leave at least 50 cm
on either side of the boiler for easy
access for maintenance.
- Do not install the boiler in wet or
dusty areas.
- The boiler must not be accessible to
animals, children or anyone else.
3.2.3 Installing the boiler
Before connecting the boiler to the
tap water and heating system pipes,
carefully clean the pipes to remove
all traces of metal resulting from
processing and welding operations
as well as any oil and grease
which could damage the boiler or
jeopardize its operation.N.B. Do not
use solvents which could damage
the components.
The Manufacturer declines all liability
for damage or injury resulting from
failure to follow the above rules.
Proceed as follows to install the boiler:
- Unscrew the four screws securing
the brackets of the boiler to the pallet
(pic. 3).
- Pass belts or cables underneath the
boiler and around the legs, lift it off
the pallet and place it in position on
the ground. Attention: when lifting
the boiler from the pallet, hold it to
prevent it from turning over (pic. 4).
- If the boiler needs to be stabilised,
insert shims between the floor and
the boiler legs.
- Connect the boiler to the flow and
return pipes.
- Remember that the plumbing
system must be fitted with all the
necessary safety and control systems
specified by law (safety valve, water
pressure switch, hot water discharge
valve, pressure gauge, etc.).
- Connect the boiler to the chimney.
- If there is an ambient thermostat,
heating pump or hot water pressure
switch, connect to the wiring system.
- Connect to the mains supply.
Important
Leave at least 10 cm between the
boiler and the wall behind it to
allow removal of the upper panel.
3.2.4 Room ventilation
These boilers have an open
combustion chamber and are
designed for connection to a chimney.
The combustion air is taken directly
from the room in which the boiler is
installed.
The boiler must be installed in a
suitable room pursuant to applicable
standards and laws, which are
considered an integral part of this
handbook.
3.2.5 Flue gas system
These boilers have a flue gas discharge
pipe designed for connection to
a 150 mm Ø duct. As regards flue
gas emission into the atmosphere,
it is mandatory to comply with the
applicable standards and laws, which
are considered an integral part of
this handbook.
The ducts from the boiler must be
connected toa chimneyin compliance
with the applicable standards and
laws, which are considered an
integral part of this handbook.
Below is a list of legal requirements
for chimneys and ducts.
* The diameter must not be less than
the diameter of the boiler discharge
outlet. For square or rectangular
chimneys, the inside cross section
must be 10% greater than that of the
boiler fitting.
* The material used must be
waterproof and resistant to the
flue gas temperatures and acid
condensate.
* Mandatory features are low thermal
conductivity, adeguate mechanical
resistance, perfect seal and carefully
calculated height and cross section.
pic. 4
pic. 3

* The chimney must be as vertical as
possible, and have a constant cross
section and no throttling.
* The final section must allow efficient
emission of the flue gas under all
atmospheric conditions.
* The final section must protrude
at least 50 cm above any adjacent
structure within a five-metre radius.
3.2.6 Choosing and installing the
burner
When choosing a burner for the
boiler, make sure the features are
compatible with the rated features of
the boiler.
The burner must bear the CE mark.
The burner must be fixed into the
front panel of the boiler using four
screws: the panel comes with four M8
threaded holes on a 150 mm
diameter circumference.
If the burner uses a different fixing
method, an adapter needs to be
used. The maximum diameter of the
burner head is 108 mm. The standard
insulation hole is 75 mm. If the burner
head has a larger diameter, widen the
hole in the insulation. If it is smaller,
add extra insulation to protect the
burner from the flame (pic. 5).
WARNING
Insulating material adjustment,
when needed, must be made with
the utmost care in order not to
damage the insulating material
itself.
The boiler is equipped with a universal
seven-pole plug for the electric
connection of the burner (pic. 6).
3.2.7 Measuring combustion
efficiency
Proceed as follows to determine
combustion efficiency:
* Measure the combustion air
temperature.
* Measure the flue gas temperature
and percentage of CO2through the
hole in the flue gas duct.
Take the readings when the boiler
is running at a steady state.
3.2.8 Connecting to the gas mains
(for boilers with gas burners)
The cross section of the gas supply
pipe must be equal to or greater
than that of the burner.
Comply with the applicable
standards and laws on boiler
installation, which are considered
an integral part of this handbook.
Perform a gas tightness test before
starting up an indoor gas supply
system and connecting to the meter.
If the system has any concealed
parts, the tightness test must be
carried out before covering the
pipes.
The tightness test must not be
carried out with combustible gas.
Use air or nitrogen.
When there is gas in the pipes,
never use a naked flame to detect
gas leaks. Use a suitable
product available from the trade.
3.2.9 Connecting to the fuel oil
supply system (for boilers with an
oil burner)
The fuel oil supply pipeline must
be perfectly watertight. In particular,
there must be no infiltration of air
along the pipe leading from the
tank. It is advisable to supply the
burners using two pipes, from tanks
positioned at a height of +4 metres
(by gravity) to –5 metres (by suction).
For higher values, it is necessary
to install a pressure reducer or an
auxiliary pump, respectively.
With tanks operating by gravity or
fuel oil systems having an auxiliary
pump, it is mandatory to fit an
additional shutoff solenoid valve
that closes automatically when the
burner switches off automatically.
If the boiler isinstalled in a particularly
cold area, use fuel oil with a low
paraffin content. If necessary, fit the
burner with a fuel oil pre-heating
system.
It is also advisable to install a filter
for oil.
3.2.10 Connecting to the power
mains (pic. 7, 8, 9, 10)
These boilers are supplied with a
terminal for connecting a three-
wire mains lead, and a cable clip to
prevent it from being torn away.
The boiler must be connected to a
230V-50Hz power mains.
Make sure the positive, negative and
neutral wires are connected properly.
Comply with the applicable
standards and laws on boiler
installation, which are considered
an integral part of this handbook.
A bipolar switch must be fitted
upstream of the boiler so that
maintenance operations can be
carried out safely.
The boiler mains supply must
be protected by a differential
magnetothermal switch with
appropriate breaking power.
The mains power supply must be
properly earthed. This basic safety
requirement is mandatory.
In case of doubt, have the
wiring thoroughly checked by a
professionally qualified electrician.
11
pic. 6
Loading
tap
7- pole
plug
pic. 5
ø 75 mm
insulation hole
standard diameter
ø 108 mm
max diameter of
burner head

The Manufacturer declines all
liability for damage or injury
resulting from failure to earth the
system properly. Gas, hot water
or heating system piping is not
suitable for earthing.
3.2.11 Hydraulic connections
Before installing the boiler, it is
important to clean the system
thoroughly. This is to remove all
impurities and particles from the
components, which could damage
the pump or heat exchanger.
The heating system delivery and
return pipes must be connected to
the relevant G1 1/4” fittings on
the boiler.
When choosing the size of the pipes
for the heating system, it is important
to take account of load losses caused
by radiators, any thermostat valves,
radiator stop valves and the actual
configuration of the system.
3.2.12 Manufacturer original kits
The Manufacturer supplies original
kits for installing the timer, the
remote boiler control board and the
temperature control.
These kits must be installed following
the accompanying instructions.
3.3 Filling the system
After completion of all the system
connections, the heating circuit can
be filled with water.
This must be done with care as
follows:
- Open the radiator air vents and
check the relief valve on the hydraulic
system.
- Gradually open the water inlet tap
and check that the relief valves in the
system, if there are any, are working
properly.
- Close the radiator air vents as soon
as water starts to come out.
- Check on the pressure gauge
installed on the hydraulic system
that the value is 0.8-1 bar.
- Turn off the water inlet tap and then
release the air again through the
radiator air vents.
- After switching on the boiler and
after the system has reached the
correct temperature, stop the pump
and repeat the air relief operations.
- Allow the system to cool down and
then set the water pressure to 0.8-1
bar.
WARNING
In domestic heating systems, it is
essential to treat the water using
specific products that are compatible
with multimetal systems. This is to
optimise efficiency and safety, keep
the system in good working order,
ensure that ancillary equipment
continues to function efficiently, and
minimise energy consumption in
line with current legal requirements.
NOTE: The boiler is equipped with
a drain cock, located in the front,
which can be used for emptying
the system (pic. 6).
3.4 Starting up the boiler
3.4.1 Preliminary checks
Before starting up the boiler, it is good
practice to carry out the following
checks.
- Make sure the flue gas pipe has been
installed according to the instructions.
When the boiler is running there
must be no leakage of combustion
products from any of the seals.
- The supply voltage must be 230
V- 50 Hz.
- The system must be full of water
(hydrometer pressare 0.8-1 bar).
- The cut-off valves on the system
pipes must be open.
- The fuel supply cock must by open.
- Check for any oil or gas leaks.
- Check that the main switch has been
turned on.
- Check the boiler safety valve.
- Check for water leaks.
3.4.2 Switching on and off
Refer to the "User Instructions" for
switching the boiler on and off.
3.4.3 Regulating thermal output
The burner thermal power must be
regulated according to the boiler
and heating system specifications.
To ensure that the boiler continues
to run efficiently, it must be serviced
once a year as specified below.
Maintenance or repairs must be
performed by qualified personnel.
For maintenance and repairs, users
are advised to contact a qualified
technician or a Service Centre where
the personnel is specifically trained
for the purpose.
Before replacing any componente
or cleaning the inside of the boiler,
turn off the main switch.
Maintenance schedule
Routine maintenance should include
the following functional checks:
- general conditions of the boiler
- tightness of the system supplying
gas or oil to the boiler
- boiler ignition
12
pic. 7

13
3.5 Wiring diagrams
3.5.1 Boiler layout
pic. 8
CH pump feeding
Room thermostat
connection
Water pressure
switch connection
Electric feeding
3.5.2 General layout
a = light blue
bl = blue
bk = black
br = brown
g= grey
gn = green
r = red
v = purple
y= yellow
ygn = yellow/ green
IG
F
Lon
PA
TA
TS
L1 NS3
MN
PC
L5
L6
L1
L
N
L3
L4
T
TM
MT
R
BR
pic. 9

R2-3
R2-6
R2-7
R4-1
R2-2
bk
bl
g
R8-2
g
R7-1
g
R7-2
v
R5-1
v
R5-2
L1
L3
L5
bk
R1-3
MN
Fu1
1
2
R3-6
r
R3-5
br
R3-4
a
PC
1211 10 9
TS
R3-2
gn
R6-1
y
R6-2
v
R3-1
v
R3-3
y
R2-5
R2-4
R2-1
g
R8-1
R4-2
R4-3
r
R1-4
3 4 5
TM
R
7
6
PA
br
bl
R1-1
br
R1-2
bl
R6-4
br
R6-3
IG
L4
L1 NS3
BR
N
PCB 1
(2)PR6
(3)PR5
TA
F
N
230Vac
50Hz
MT
LN
bl
(1) PR1
(4) PR3
2
11a
2a
C
12
C
12
2
C
br
ygn
bl
bl
br
3.5.3 Topographical layout
Key to symbols:
IG: Main switch [on the printed circuit it is indicated with “on/off”]
L1: Low water light (optional)
L3: Heating pump light
L4: Burner light
L5: Overheating light
L6: Burner stop light (optional)
MT: Programming clock motor (optional) [indicated with TIMER on the
PCB]
TM: Programming clock contact (optional) [indicated with TIMER on
the PCB]
PA: Water pressure switch [on the printed circuit it is indicated with the
water presure switch symbol]
MN: Minimum temperature thermostat (optional) [on the printed circu-
it it is indicated with Tm]
TA: Room thermostat
R: Heating thermostat [on the printed circuit it is indicated with Tr]
TS: Safety thermostat
Fu1: Safety fuse type F4A 250V
BR: Burner
PC: Heating system circulating pump
PCB1: Heating system printed circuit
Notes: (1) PR1: Remove jumper and connect PA
(2) PR6: Remove jumper and connect TM
(3) PR5: Remove jumper and connect MN
(4) PR3: Remove jumper and connect TA
14
pic. 10

- boiler combustion parameters
through flue gas analysis.
Individually-installed boilers need to
be checked once every two years,
cascade boilers need to be checked
once a year.
- condition and tightness of the flue
gas pipes
- condition of all the boiler safety
devices
- water tightness and scaling of the
boiler connections
- efficiency of the system safety valve
and the following cleaning opera-
tions (with the boiler cold)
- the boiler as a whole
- the burner: this may also need to
be reset according to the manufac-
turer’s instructions (see combustion
check)
- boiler room ventilation grille
- flue gas side of the heat exchanger.
Use a brush or suction device to
remove soot deposits from the walls
and heat exchanger fins.
Alternatively, specific chemical pro-
ducts can be used provided that the
manufacturer’s instructions are follo-
wed carefully.
Do not clean the heat exchanger
with flammable products such as
petrol or solvent.
When remounting the front panels,
check the state of the seals and
replace them if necessary.
Before acting on the boiler for the
first time, check the existence of
the following:
- heating system documents and/
or certificates complying with the
applicable laws (if any) issued by the
installer
Also check that:
- the room where the boiler is instal-
led is suitable for the purpose
- the room is adequately ventilated
- flue gas pipes are the right diame-
ters and lengths
- the boiler has been installed cor-
rectly in compliance with the instruc-
tions in this manual
If the boiler does not function cor-
rectly or there is a hazard to per-
sons, animals or property, notify
the supervisor and write a report
specifying details.
15
4 Maintenance

0LIBISEN34
Fondital S.p.A.
25079 VOBARNO (Brescia) Italy - Via Cerreto, 40
Tél. [phone]
Fax [phone]
e-mail: [email protected]
www.fondital.com
The MANUFACTURER reserves the right to implement any necessary and/or useful variation to products,
without modifying fundamental characteristics
Uff. Pubblicità Fondital IST 03 C 202 - 03 Febbraio 2018 (02/2018)