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USER GUIDE
1a GENERAL WARNINGS AND SAFETY
The instruction manual is an integral part of the product and it must there-
fore be kept carefully and must accompany the appliance; if the manual
is lost or damaged, another copy must be requested from the Technical
Assistance Service.
Boiler installation and any other assistance and maintenance opera-
tions must be carried out by qualified personnel according to the
provisions of local legislation.
For installation, it is advisable to contact specialised personnel.
The boiler must only be used for the application foreseen by the
manufacturer. The manufacturer shall not be liable for any damage
to persons, animals or property due to errors in installation, calibra-
tion, maintenance or due to improper use.
The safety and automatic adjustment devices must not be modified,
during the system life cycle, by the manufacturer or supplier.
This appliance produces hot water, therefore it must be connected
to a heating system and/or a domestic hot water mains, compatible
with its performance and output.
In case of water leakage, close the water supply and contact the
Technical Assistance Service immediately.
In case of absence for long periods time, close the gas supply and
switch off the electrical supply main switch. If there is a risk of frost,
drain the boiler.
From time to time check that the operating pressure of the hydraulic
system does not go below 1 bar.
In case of failure and/or malfunctioning, deactivate the appliance,
and do not try to repair or operate directly on it.
Appliance maintenance must be carried out at least once a year:
scheduling it with the Technical Assistance Service will avoid wasting
time and money.
Boiler use requires strict observation of some basic safety rules:
Do not use the appliance in any manner other than its intended
purpose.
It is dangerous to touch the appliance with wet or damp body parts
and/or when barefoot.
Under no circumstances cover the intake grids, dissipation grids and
ventilation vents in the installation room with cloths, paper or any
other material.
Do not use electrical switches, telephone or any other object that
causes sparks if there is a smell of gas. Ventilate the room by open-
ing doors and windows and close the central gas tap.
Do not place anything in the boiler.
Do not perform any cleaning operation if the appliance is not discon-
nected from the mains power supply.
Do not cover or reduce ventilation opening of the room where the
generator is installed.
Do not leave containers and inflammable products in the installation
room.
Do not attempt to repair the appliance in case of failure and/or mal-
functioning.
It is dangerous to pull or twist the electric cables.
Children or unskilled persons must not use the appliance.
Do not carry out operations on sealed elements.
For better use, remember that:
- periodic external cleaning with soapy water not only improves its appear-
ance but also preserves panelling from corrosion, extending its life cycle;
- if the wall-mounted boiler is enclosed in a hanging unit, leave at least 5
cm for ventilation and maintenance;
- installation of a room thermostat will greatly improve comfort, a more ra-
tional use of the heat and energy saving; the boiler can also be connected
to a programmable timer in order to control the switching on and off of the
appliance during the day or week.
2a SWITCHING ON THE APPLIANCE
Every time the appliance is powered up, a series of data is shown on
the display including the flue gas sensor meter reading (-C- XX) (see
paragraph 4.3 - fault A09); the automatic purge cycle then starts, lasting
around 2 minutes. During this phase, the three LEDs light up alternately
and the symbol "
" is shown on the monitor (fig. 25).
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- open the gas tap to allow the flow of fuel
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter mode: by turning the mode selector (fig. 27) in the area divided
into segments, the boiler provides domestic hot water and heating. If there
is a heat request, the boiler switches on and the boiler status indicator
LED lights up with a fixed green light. The digital monitor indicates the
heating water temperature (fig. 29).
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fixed green light.
The display indicates the delivery temperature (fig. 30).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol "
(fig. 27) clockwise to the area divided into segments.
Summer mode: turning the selector to the summer mode symbol "
(fig. 28) activates the traditional domestic hot water only function.
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fixed green light. The digital
monitor indicates the delivery temperature (fig.30).
Pre-heating (faster hot water): turning the domestic hot water tempera-
ture adjustment knob to the "
function.
Bring the domestic hot water temperature adjustment knob back
to the required position.
This function keeps the water in the domestic hot water exchanger hot, to
reduce standby times when a request is made.
When the pre-heating function is enabled, the yellow LED next to the "
symbol is lit.
The monitor indicates the delivery temperature of the heating water or the
domestic hot water, according to the current request.
During burner ignition following a pre-heating request, the monitor indi-
cates the " " symbol.
To deactivate the pre-heating function, rotate the domestic hot water tem-
perature adjustment knob back to the "
switch off. Bring the domestic hot water temperature adjustment knob
back to the required position.
This function cannot be activated when the boiler is OFF: function selector
(fig.32) to "
" (OFF).
Adjustment of domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitch-
en, etc.), turn the knob with the
numerical values between 1 (min. value 37°C) and 9 (max. value 60°C).
On the control panel, the green LED flashes ON for 0.5 seconds then OFF
for 3.5 seconds.
The boiler is standby status until, after a heat request, the burner switches
on and the indicator LED turns fixed green to indicate flame presence.
The boiler continues to operate until the temperatures set on the boiler are
reached, or the heat request is met; after which it goes back on standby.
If the red LED indicator near the
lights up, this means the boiler is in temporary shutdown status (see the
chapter on Light signals and faults).
The digital monitor indicates the fault code detected (fig. 34).
Automatic Temperature Control System function (S.A.R.A.) fig. 35
Setting the heating water temperature selector to the area marked
"AUTO", activates the automatic temperature control system (frequency
0.1 sec. on; then 0.1 sec. off; for 0.5 seconds): according to the tempera-
ture set on the room thermostat and the time taken to reach it, the boiler
varies automatically the heating water temperature reducing the operating
time, allowing greater ease of operation and energy saving. On the control
panel, the green LED flashes ON for 0.5 seconds, OFF for 3.5 seconds.
Reset function
To restore operation, set the function selector to
5-6 seconds then set it to the required position, checking that the red in-
dicator light is OFF.
At this point the boiler will automatically start and the red lamp switches
on in green.
N.B. If the attempt to reset the appliance does not activate operation, con-
tact the Technical Assistance Service.
"
symbol (fig. 31)
activates the pre-heating
" symbol. The yellow LED will
symbol (fig. 28) to align with one of the
symbol (fig. 34) on the control panel
("OFF") (fig. 32), wait
ENGLISH
"
"
"
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