Ariston ecoCOMBI 27 MFFI Manual do utilizador - Página 6

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USEFUL INFORMATION

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Turning Off the Heating
Installation without an external thermostat:
To turn off the heating, turn the "A" selector knob to "
provide domestic hot water.
CD021C
Installation with an external thermostat:
To turn off the heating, turn the "A" selector knob to "
provide hot water for domestic use. With an external thermostat, there are a
number of ways to turn off the heating. For additional information, please consult
the relative manual.
CD029C
DISPLAY: Viewing Normal Functions
When the system is operating, i.e. while the boiler is fulfiling its normal functions,the
left-hand display will show a series of letters indicating the following functions:
CD024C
Diagnostics Stage (precedes all other functions):
0
No Request for Heat
C
Heating, Burner Off
C. Heating, Burner On
c
Pump Overrun for Heating
d
Water for Domestic Use, Burner Off
d. Water for Domestic Use, Burner On
h
Pump Overrun for Water for Domestic Use
b
Storage Cylinder, Burner Off (SYSTEM version)
b. Storage Cylinder, Burner On (SYSTEM version)
N
: the flashing dot on the left-hand display always indicates "burner off"; the
OTE
still dot indicates "burner on".
The right-hand display (two-digit) shows:
- in heating mode: temperature of heating system flow;
- in domestic hot water mode: temperature domestic hot water.
Boiler Shutdown
The boiler is equipped with safety devices which intervene in certain situations
to shutdown the boiler. Some of these situations are signalled by the boiler and
can be corrected by the user.
Shutdown Due to Ignition Failure
CD030C
This anomaly is indicated by "A01" on the display. To reset the boiler, press and
then release the "H" button.
At this point, the electronic ignition system will attempt to light the burner again.
Should the boiler fail to ignite a second time, check that the external gas
cock is open. If the problem persists, contact an Authorised Service
UT011Ad
Centre.
Shutdown Due to Overheating
This anomaly is indicated by "E03" on the display. The boiler has shutdown
because the safety thermostat detected that the boiler temperature has exceed-
CD030C
ed the maximum limit.
To reset this state, wait until the boiler has cooled and press the button "H".
If the safety thermostat operates on a frequent basis, contact one of our
Authorised Service Centres.
Shutdown Due to Insufficient Water Circulation
This anomaly is indicated by "A21" on the display.
CD031C
One of the possible causes of this shutdown situation could be the lack of water
in the boiler or water circulation failure in the primary heating circuit.
". The boiler will still
" The boiler will still
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