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ENGLISH
4 -
IGNITION AND OPERATION
4.1
Preliminary checks
When the boiler is first started the siphon for collecting the con-
densate is empty.
It is therefore necessary to create a head of water fi lling the siphon
before starting up, following these instructions:
- remove the siphon by releasing it from the plastic pipe connecting
to the combustion chamber
- fi ll the siphon about 3/4" full with water, making sure it is free of
any impurities
- check the fl oat of the plastic cylinder
- put back the siphon, being careful not to empty it, and secure it
with the clip.
The plastic cylinder inside the siphon has the job of preventing com-
bustible gas coming out into the surroundings if the appliance is start-
ed without fi rst creating the head of water in the siphon.
Repeat this operation during routine and extraordinary maintenance
operations.
First ignition is carried out by competent personnel from an author-
ised Technical Assistance Service Centre.
Before starting up the boiler, check:
a)
that the supply networks data (electric, water, gas) corresponds
to the label data
b)
that piping leaving the boiler is covered by thermal insulation
sheath
c)
that flue gas extraction and air suction pipes work correctly
d)
that conditions for regular maintenance are guaranteed if the
boiler is placed inside or between furniture
e)
the seal of the fuel adduction system
f)
that fuel capacity corresponds to values requested by the boiler
g)
the correct calibration of the gas valve and, if necessary, adjust
as indicated in paragraph 4.7 "Adjustments"
h)
that the fuel supply system is sized to provide the correct deliv-
ery to the boiler, and that it has all the safety and control devices
prescribed by national and local regulations.
4.2
Appliance ignition
Each time the boiler is electrically powered the display shows a se-
ries of information including the gas probe counter value (-C- XX)
(see section 4.4 - fault A09) and then the boiler begins an automatic
venting cycle that lasts about 2 minutes. During this phase the sym-
bol
will appear on the display (fig. 25).
To interrupt the automatic venting cycle: access the electronic card
by removing the shell, turning the instrument panel upside down and
opening the electrical parts inspection cover. Subsequently:
- press the CO button (fig. 26).
Live electrical parts (230 Vac).
To start-up the boiler it is necessary to carry out the following oper-
ations:
- electrically power the boiler
- unhook the connections cover as indicated in section 3.16 "Con-
nections cover"
- open the gas tap to allow fuel flow
- set the ambient thermostat at the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter
Turning the mode selector (fig. 27) within the area marked with + and
- the boiler provides domestic hot water and heating.
The boiler lights automatically in response to a heat request.
The digital monitor indicates the heating water temperature (fig. 28).
In the event of a request for domestic hot water.
The display indicates the domestic hot water temperature (fig. 29).
Adjusting the heating water temperature
To adjust the heating water temperature, turn the knob with the "
" symbol (fig. 27) clockwise to the area marked with + and -.
Depending on the type of system, the most suitable temperature
range can be pre-selected:
- standard installations 40-80°C
- floor installations 20-45 °C.
For details see section 4.5.
10
Summer
Turning the selector to the
function of only domestic hot water is activated.
The boiler lights automatically in response to a request for domestic
hot water.
The digital monitor indicates the domestic hot water temperature
(fig.29).
Pre-heating (faster hot water)
Positioning the mode selector to summer or winter and turning the
domestic hot water temperature adjustment knob to the
(fig. 31) the pre-heating function is activated. 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.
The display indicates the outlet temperature of the heating water or
the domestic hot water based upon the request in progress.
During burner ignition following a pre-heating request, the monitor
indicates the
symbol.
To deactivate the pre-heating function, rotate the domestic hot water
temperature adjustment knob back to the symbol
Bring the domestic hot water temperature adjustment knob back to
the required position.
This function cannot be activated when the boiler is OFF: mode se-
lector (fig.32) on
OFF.
Adjusting the heating water temperature with an external probe
connected
When an external probe is installed, the delivery temperature is auto-
matically selected by the system, which quickly adjusts the ambient
temperature according to variations in the outside temperature.
If you want to alter the temperature value (increasing or reducing
the value automatically calculated by the electronic card), use the
heating water temperature selector: turn it clockwise to increase the
temperature, or anticlockwise to reduce it.
The correction possibility is between - 5 and + 5 comfort levels which
are shown on the digital display by rotating the knob.
Adjustment of the domestic hot water temperature
To adjust domestic water temperature (bathrooms, showers, kitch-
en, etc.), turn the knob with the
marked with + and -.
The boiler is in standby until the burner switches on following a heat
request.
The boiler continues to function until the temperatures set on the
boiler are reached, or the heat request terminates; it will then go back
to standby.
If the red indicator light near the
panel lights up, this means the boiler is in temporary stop status (see
the chapter on light signals and faults).
The digital monitor indicates the fault code detected (fig. 34).
Automatic Ambient Adjustment System (S.A.R.A.) (fig. 35)
By setting the heating water temperature selector to the area marked
by AUTO, the S.A.R.A. self-adjusting system is activated (frequency
0.1 sec. on; - 0.1 sec. off; duration 0.5): according to the temperature
set on the ambient thermostat and the time employed to reach it,
the boiler varies automatically the heating water temperature reduc-
ing the operating time, allowing great operation comfort and energy
saving.
Reset function
To restore operation, set the function selector to
5-6 seconds then bring it to the required position, checking that the
red indicator light is off.
At this point the boiler will automatically start and the red lamp switch-
es on in green.
When a remote control BeSMART is connected, the reset of faults
can be done also on the remote control itself, pressing for one se-
cond the BACK/RESET (button) (fi g. 37).
N.B. If the attempts to reset the appliance do not activate operation,
contact the Technical Assistance Centre.
summer symbol (fig. 30) the traditional
.
symbol (fig. 33) within the area
symbol (fig. 34) on the command
off (fig. 36), wait
symbol
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