Ariston ACO 35 MFFI Manual do utilizador - Página 6
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M
H
summer
C
C
C
E
6
N
A
winter
C
Start-up Procedure
Before starting the boiler, check the following:
- The water pressure on the pressure gauge "F" is between 1 and 1.5
bar;
- That the external gas cock "M" and "N" and the inlet for domestic
water are open.
These models are equipped with electronic ignition (there is no pilot
light).
To switch the boiler on, push the
the summer "
" or winter position; a centralised electronic con-
trol unit will automatically light the main burner when needed without
any intervention from the outside (green LED "A" will illuminate when
the burner is on).
If the burner does not light within the pre-set safety time limit, the dis-
play will show an error code and the red LED "H" will illuminate.
To reset the ignition system, the reset button
Should the system fail to light a second time, check to make sure that
the gas cock is open. If the problem persists, contact one of our
Authorised Service Centres.
Winter and Summer Operating Modes
In the "winter" operating mode, the
Central Heating and Domestic Hot Water. In the "summer" oper-
ating mode, the boiler will produce only Domestic Hot Water.
Using the knob on the control panel, the user can select "winter"
or "summer" operating mode. Keeping the knob "C" at the "
position selects the "summer" operating mode. "Winter" operating
mode may be selected by positioning the knob "C" between the
min. and max. settings.
Adjusting the heating
It is possible to set the temperature of the Central Heating system
by adjusting the knob "C". By positioning the indicator some-
where between 1 and 6, a temperature may be obtained which
varies from approximately 38˚C to about 82˚C.
The water temperature in the primary circuit is shown on the dis-
play.
External (room) thermostat control
If an external (room) thermostat is installed, it is recommended
that the temperature of the Central Heating system be set by
means of the knob "C", leaving it at max in order to obtain the
best performance from the boiler and to allow the regulation of the
room temperature to function efficiently.
Setting the hot water for domestic use
Both in the winter and summer mode, the temperature of the
Domestic Hot Water may be adjusted by using knob "E". A deliv-
ery temperature for the water may be chosen in a range from 36˚C
to about 56˚C, depending on the flow rate of the water and the
position of the knob between the min. and max. settings.
To increase water temperature, turn knob "E" to max. and reduce
the water flow rate at the tap.
The water temperature in the primary circuit is shown on the
display.
button. Turn the knob "C" to
must be pressed.
boiler will produce both
"