9
ENGLISH
Heating water temperature selector:
sets the heating water temperature.
Domestic hot water temperature selector:
sets the domestic hot water tem-
perature.
Function key:
ON - the boiler is electrically powered and waiting for operating requests (
-
)
OFF - the boiler is electrically powered but will not respond to operating requests
RESET - resets the boiler following a fault
Operating mode button:
allows the most suitable operating mode to be selected
(
winter -
winter comfort-
summer -
summer comfort).
Info button:
shows a sequence of information concerning the operating status
of the machine.
Filling button:
pushing it, the boiler automatically fills the system until the
pressure reaches 1 to 1.5 bar.
graduated heating water temperature scale with heating function symbol
graduated domestic hot water temperature scale with domestic hot water
function symbol
fault symbol (for details, please see page 15)
reset symbol (for details, please see page 15)
pressure value
external sensor connection
heating/domestic hot water temperature
or
fault symbol (e.g. 10 - no flame)
function selector (turned to the chosen operating mode:
winter -
winter comfort-
summer -
summer comfort)
burner operating symbol
anti-freeze function active symbol
system filling function symbol
fill symbol
12 - START-UP AND OPERATION (GREEN C.S.I.)
The boiler produces heating and domestic hot water. The control panel contains the main boiler control and management functions.
Description of commands
Description of display symbols
Switching on
Switch on the boiler as follows:
- access the gas tap through the slots in the cover located in the lower part of
the boiler
- open the gas tap by turning it anti-clockwise (Fig. 1)
- power the boiler.
When powered, the boiler performs a test sequence and a series of numbers
and letters are shown on the display.
If the test is successful the boiler is ready to work about 4 seconds after the
cycle ends.
The display will look like Fig. 2.
If the test is unsuccessful, the boiler will not work and a “0” will flash on the
display.
In this case, contact the Technical Assistance Centre.
The boiler turns on in the status it was in before it was switched off: if the
boiler was in the winter comfort mode when it was switched off, it will turn
on again in the winter comfort mode. If it was in the OFF mode, the display
will show two segments in the central area (Fig. 3). Press the button to
enable operation.
- press the function selector until the indicator moves to the required function
, depending on the kind of operation chosen.
-
WINTER
: with the selector in this position, the heating water and domestic
hot water functions are activated.
In this position the S.A.R.A. function is enabled in the heating mode (see
chapter “Boiler functions”). The boiler actives the temperature stabiliser in
order to ensure the continuous production of domestic hot water, even for
small demands or when the inlet water is already hot. This prevents tempera-
ture oscillations due to the burner switching off/on.
-
WINTER COMFORT
: with the selector in this position, as well as the
traditional function of heating water and domestic hot water, the preheating
function is also activated which keeps the water in the domestic hot water
exchanger hot in order to reduce waiting times. The S.A.R.A. Booster and
Domestic hot water preheating functions are enabled in this position (see
chapter “Boiler functions”).
-
SUMMER :
with the selector in this position, just the traditional domestic
hot water function is activated.
-
SUMMER COMFORT
: with the selector in this position, the boiler
provides just domestic hot water with a temperature stabiliser for small
deliveries. Ideal at the times of year or in the areas where the mains water is
already warm. In these conditions, the temperature of the hot water produced
by a boiler with just traditional functions (see SUMMER and WINTER COM-
FORT) may be instable.
Adjusting heating water temperature
Turning the selector
A
(Fig. 4), after having positioned the selector mode on
winter
or winter comfort
, it is possible to regulate the heating water
temperature.
Turn clockwise to increase the temperature and anticlockwise to decrease.
The bar segments light up (every 5°C) as the temperature is increased. The
selected temperature value appears on the display. If you enter the S.A.R.A.
adjustment field (from 55 to 65°C) while selecting the heating water temperatu-
re, the symbol
and the graduated scale start flashing. For details about the
S.A.R.A. function, read page 12. The selected temperature value appears on
the display.
Domestic hot water
temperature selector
Operating mode button
ON-OFF-RESET
function selector
Filling button
Heating water circuit
temperature selector
INFO button
