Fondital ELBA DUAL 23 Quick start guide

INSTALLATION,
USE AND MAINTENANCE
ELBA DUAL
GB
IST 03 C 202-01

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 indispen-
sable 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 con-
sidered incorrect and therefore
dangerous.
The boiler must be installed in com-
pliance 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.
Damageorinjurycausedbyincorrect
installation or use or failure to obser-
ve 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 electri-
cal ones). All the packaging mate-
rials 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 cor-
rect operation of the boiler, it is
legally binding to service the boi-
lers 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 electri-
city and fuel supply. Place some
calcium carbonate inside the com-
bustion 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-free-
ze for multi-metal heating systems.
IMPORTANT
If there is a smell of gas, when
using a gas-fired boiler, always fol-
low 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 quali-
fied installer or the gas supply com-
pany.
Never use a flame to detect a gas
leak.
WARNING
This boiler has been built for instal-
lation 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 posi-
tion 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 tempera-
ture 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 boi-
lers after a long period of inacti-
vity, 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 but-
ton (see paragraph below).
1.2.2 Burner shutdown
If the boiler does not function
correctly, the burner cuts out auto-
matically and the relevant light
comes on. It is necessary to pro-
ceed 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 authori-
sed Service Centre or a qualified
technician.
If the burner cuts out frequently,
this means there is a recurring
malfunction, so contact a quali-
fied technician or an authorised
Service Centre.
1.2.3 Shutdown due to overhea-
ting
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 person-
nel.
The user may only clean the
exterior casing of the boiler,
using a suitable cleaning pro-
duct.
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 autho-
rised to install specific original kit
on the boiler.
The Manufacturer declines all lia-
bility for injury or damage resul-
ting from attempts to tamper with
the boiler or incorrect operation.
The heating system can be pro-
tected 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 exchan-
ger 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 Low
Voltage 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, hea-
ting pump on, burner on, and ove-
rheating shutdown
* Heating temperature control
(49/82°C).
* Safety thermostat (110°C)
* Wiring system with printed cir-
cuit
* Designed for electrical connec-
tion to a heating pump
* Designed for electrical con-
nection to a low water pressure
switch
* Designed for connection to a
remote D.H.W. storage tank con-
trol board (optional kit)
* Designed for connection to a cli-
mate 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
L
150
850 mm
450 mm
285
4 FORI M8
110
150
mm
65 mm
57
486,5 mm
mm
mm
82,5 mm
235 mm
627 mm
225 mm
65 mm
82,5 mm
MODEL L Flow A Return B
23 400 1" 1/4 1"
33 525 1" 1/4 1"
43 625 1" 1/4 1"
53 700 1" 1/4 1"
63 800 1" 1/4 1"
73 900 1" 1/4 1"
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 CO2values 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 0.85 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 han-
dbook.
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 sour-
ce 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 choo-
sing 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 accessi-
ble 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 resul-
ting 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 lia-
bility for damage or injury resulting
from failure to follow the above
rules.
Proceed as follows to install the
boiler:
- Unscrew the four screws secu-
ring 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 stabili-
sed, 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 chim-
ney.
- If there is an ambient thermostat,
heating pump or hot water pres-
sure 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 com-
bustion chamber and are designed
for connection to a chimney. The
combustion air is taken directly
from the room in which the boi-
ler is installed.
The boiler must be installed in a
suitable room pursuant to applica-
ble 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 con-
nection to a 150 mm Ø duct. As
regards flue gas emission into the
atmosphere, it is mandatory to
comply with the applicable stan-
dards and laws, which are con-
sidered an integral part of this
handbook.
The ducts from the boiler must be
connected to a chimney in com-
pliance with the applicable stan-
dards and laws, which are con-
sidered an integral part of this
handbook.
Below is a list of legal requiremen-
ts for chimneys and ducts.
* The diameter must not be less
than the diameter of the boiler
discharge outlet. For square or
pic. 4
pic. 3

rectangular chimneys, the inside
cross section must be 10% greater
than that of the boiler fitting.
*The material used must be water-
proof and resistant to the flue gas
temperatures and acid conden-
sate.
* Mandatory features are low ther-
mal conductivity, adeguate mecha-
nical resistance, perfect seal and
carefully calculated height and
cross section.
* The chimney must be as vertical
as possible, and have a constant
cross section and no throttling.
* The final section must allow effi-
cientemissionofthefluegasunder
all atmospheric conditions.
* The final section must protrude
at least 50 cm above any adja-
cent 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 83 mm
(for models 23, 33 and 43) and
103 mm (for models 53, 63 and
73). If the burner head has a lar-
ger 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.
Theboilerisequippedwith a univer-
sal 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 tem-
perature.
* Measure the flue gas temperatu-
re and percentage of CO2through
the hole in the flue gas duct.
Take the readings when the boi-
ler is running at a steady state.
3.2.8 Connecting to the gas
mains (for boilers with gas bur-
ners)
The cross section of the gas sup-
ply pipe must be equal to or grea-
ter than that of the burner.
Comply with the applicable stan-
dards and laws on boiler instal-
lation, which are considered an
integral part of this handbook.
Perform a gas tightness test before
starting up an indoor gas sup-
ply 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 particu-
lar, 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 auxi-
liary pump, it is mandatory to fit an
additional shutoff solenoid valve
that closes automatically when the
burner switches off automatically.
If the boiler is installed in a particu-
larly 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.
11
pic. 6
Loading
tap
7- pole
plug
pic. 5
ø 83-103
insulation hole
standard diameter
ø 108
max diameter of
burner head

Comply with the applicable stan-
dards and laws on boiler instal-
lation, 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 magne-
tothermal 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 professio-
nally qualified electrician.
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 origi-
nal kits for installing the timer, the
remote boiler control board and
the temperature control.
These kits must be installed fol-
lowing the accompanying instruc-
tions.
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 ope-
rations.
- 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 compa-
tible with multimetal systems. This
is to optimise efficiency and safety,
keep the system in good working
order, ensure that ancillary equi-
pment continues to function effi-
ciently, and minimise energy con-
sumption 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 fol-
lowing checks.
- Make sure the flue gas pipe has
been installed according to the
instructions. When the boiler is
running there must be no leaka-
ge 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.
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
circuit 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

To ensure that the boiler conti-
nues to run efficiently, it must be
serviced once a year as specified
below.
Maintenance or repairs must be
performed by qualified person-
nel.
Formaintenanceandrepairs,users
are advised to contact a qualified
technician or a Service Centre
where the personnel is specifically
trained for the purpose.
Before replacing any componen-
te or cleaning the inside of the
boiler, turn off the main switch.
Maintenance schedule
Routine maintenance should inclu-
de the following functional checks:
- general conditions of the boiler
- tightness of the system supplying
gas or oil to the boiler
- boiler ignition
- boiler combustion parame-
ters 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 ope-
rations (with the boiler cold)
- the boiler as a whole
- the burner: this may also need to
be reset according to the manu-
facturer’s instructions (see combu-
stion check)
- boiler room ventilation grille
- flue gas side of the heat exchan-
ger. 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
followed 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 existen-
ce 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
installed is suitable for the purpo-
se
- the room is adequately ventila-
ted
- flue gas pipes are the right dia-
meters and lengths
- the boiler has been installed
correctly in compliance with the
instructions in this manual
If the boiler does not function
correctly or there is a hazard to
persons, animals or property,
notify the supervisor and write a
report specifying details.
15
4 Maintenance

Fondital S.p.A.
25079VOBARNO (Brescia) Italia - Via Cerreto, 40
Tel. [phone] - Fax + 39 0365 878.576
e mail: [e-mail] - www.fondital.it
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 - 01 Dicembre 2005 (12/2005)
0LIBISEN34