Ariston microGENUS II 28 MFFI Gebruikershandleiding - Pagina 4
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M
N
PL004D
PL007D
summer
PL009D
winter
PL009D
C
PL008D
C
PL008D
B
4
ensure that the efficiency of the unit remains the same over time, reducing gas
consumption and maintenance costs.
- If the boiler should be out of use for a prolonged period, it is recommended that the
electrical power supply be disconnected and that the external gas cock "M" and "N"
be closed. If low temperatures are expected, the boiler and system pipe work should be
drained in order to prevent frost damage.
- To improve comfort and take full advantage of the heat produced by the boiler, it is
recommended that an external (room) thermostat be installed.
- It is good practice to clean and service the appliance and central heating system every
year. Call an Authorised Service Centre.
Turn the selector knob "A" to the "I" position. After a short delay the display will indicate
"o o n n " indicating that the boiler is ready to operate. The electronic control unit will ignite the
burner, without any manual intervention but in response to the request for Domestic Hot
Water or Central heating. If, after approximately 10 seconds, the burner has not ignited,
the boiler safety devices will shut off the gas and the display will
indicate the fault code A A 0 0 1 1 . To reset the ignition system, the reset
button "D" must be pressed and released. Should the boiler fail to
ignite a second time, check that the external gas cock is open "N".
If the problem persists, contact an Authorised Service Centre.
W
INTER AND SUMMER OPERATING MODES
In the 'winter' operating mode, the boiler will produce both Central
Heating and Domestic Hot Water. In the 'summer' operating mode, the
boiler will produce only Domestic Hot Water.
Using the knobs on the control panel, the user can select 'winter' or 'summer' operating
mode.
Keeping the knob "C" at the "
operating mode, the symbol "
mode may be selected by positioning the knob "C" between the
min. and max. settings. The symbol "
A
DJUSTING THE HEATING
It is possible to set the temperature of the Central Heating system
by adjusting the knob "C". By positioning the indicator somewhere
between min. and max., a temperature may be obtained which
varies from approximately 42˚C to about 82˚C.
The water temperature in the Central Heating circuit may be
checked on the display.
E
XTERNAL
If an external (room) thermostat is installed, it is recommended that the temperature of
the Central Heating system be set by means of the "C" knob, leaving it at max in order
to obtain the best performance from the boiler and to allow the regulation of the external
temperature to function efficiently.
S
ETTING 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 the "B" knob. A delivery 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.
The water temperature in the primary circuit may be checked on the display.
N
:
Should the hot water temperature be insufficientm turn the thermostat
OTE
knob to maximum and reduce the flow rate at the tap. ( A high flow rate will
reduce the temperature.
I
GNITION PROCEDURE
I I
" position selects the 'summer'
" will illuminate. 'Winter' operating
" will illuminate.
(
)
ROOM
THERMOSTAT CONTROL
A
I I
PL004D
E
C
D
PL006C
summer
C
winter
C
PL007C