Operatingp - Ariston ecoCOMBI 27 MFFI Installation And Servicing Instructions

3.5. D : M
ISPLAY ESSAGES
S D
HOWN URING
N O
ORMAL PERATION
F . 3.2
IG
LEFT RIGHT
3.6. O P
PERATING
3.6.1 R
EGULATION
left-hand display
A
r r
d
n n
F
S
t
t/s
20
During operation of the boiler, while it is carrying out its normal operations, the left-hand
display shows a series of characters that refer to the operations indicated below:
- - Diagnostics phase (precedes the other operations)
0 0
No request for heat
C C
Heating, burner off
C C . .
Heating, burner on
c c
Pump overrun for heating
d d
Domestic hot water, burner off
d d . .
Domestic hot water, burner on
h h
Pump overrun for domestic hot water
b b
Storage cylinder, burner off (SYSTEM version)
b b . .
Storage cylinder, burner on (SYSTEM version)
N : the flashing dot on the left-hand display always indicates "burner off"; while the still
OTE
dot indicates "burner on".
The right-hand display (two-digit) shows:
- in CENTRAL HEATING mode: temperature of the Central Heating system flow;
- in DOMESTIC HOT WATER mode: temperature of the Domestic Hot Water (MFFI only).
The boiler has been designed to allow easy intervention with regard to the operating
ARAMETERS
parameters.
M T
Summary of the functions accessed when the RESET button is pushed for 5 seconds.
ENU ABLE
right-hand display
da0 1 a 2 4
0 0
0 1
da1 2 a 2 8
da0 0 a 1 2
da0 1 a 0 9
da8 1 a 8 9
__ --
0 0
0 1
Important!!
Parameters d, n and F are only enabled when the outdoor sensor is
connected.
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).
Function
Pump overrun
Selects low temperature
systems or std systems
Correction of heat curve
translation
night-time lowering
of the temperature
curve incline
do not use
test mode
do not use
factory setting
set to 0 3
set to 0 1
set to2 0
set to 0 0
set to 0 9
see next paragraph
set to 0 0