Comfort Key - Ariston ecoCOMBI 27 MFFI Installation And Servicing Instructions

3.6.2 S D
ETTINGS
3.6.3 C K
OMFORT EY
27 MFFI
The boiler is designed to monitor some operating variables and settings by means of the
ISPLAY
display on the front control panel. Keeping the reset key pressed for over 10 seconds
allows access to the "readout" function of the main system variables. By pressing the
button repeatedly after that, it is possible to read the following information in sequence:
Indication on the
left-hand display
To return to the normal display, press the "H" reset key repeatedly until all the sequence
of "readout" functions have scrolled through the display and until one of the "display of
normal operations" has appeared (the message that appears will depend on the current
operating mode of the boiler).
* N
OTE
N
OTE
The boiler allows the convenience level to be increased in the output of domestic hot water
:
by means of the "COMFORT" function. This function keeps the secondary exchanger warm
during the periods in which the boiler is inactive, thereby allowing the initial water drawn to
be at a higher temperature. The function may be activated by pressing the "K" key on the
control panel (see section 3.3.). When the function is active, a green light comes on, again
located on the control panel.
N : During the overrun period of the pump, the "COMFORT" function, if selected, is
OTE
temporarily deactivated. The L.E.D. light remains on to indicate that the boiler will return to
the "COMFORT" mode once the pump overrun is terminated.
Flow temperature of the Central Heating circuit (°C)
U U / / 1 1
Return temperature of the Central Heating circuit (°C)
U U / / 2 2
Domestic Hot Water output temperature (°C)
U U / / 5 5
Ionisation current (expressed in bT)
U U / / F F
Main circuit flow switch
U U / / t t
Heating ignition delay (see section 3.6.4. - expressed in min.x1)
P P / / A A
Maximum thermal power for heating (expressed in a percentage of
P P / / - -
the difference between the maximum power allowed by the boiler
and the minimum)
Soft light power (expressed in a percentage of the difference
P P / / L L
between the maximum power allowed by the boiler and the
minimum)
b b
Last safety shut-off (see section 3.7.)
l l
Last shutdown (see section 3.7.)
1: U/1 means that "U U " and "1 1 " blink alternately on the display
2: the value 100% appears as "0 0 0 0 " on the display
Value read on right-hand display
23