Ariston ecoCOMBI 27 MFFI Installation And Servicing Instructions page 22

F+
F . 3.6
IG
H
F+
F . 3.7
IG
F+
F . 3.8
IG
F+
F . 3.9
IG
F+
F . 3.10
IG
22
Adapting the heat curve "d" set"
(Only enabled when an outdoor sensor is installed)
G-
To adapt the heat curve to the system requirements, set parameter "d" in order
to shift the curve in parallel, so that the flow temperature calculated is changed,
along with the ambient temperature.
When "d" appears on the left-hand display, use the heating control knob to shift
the curve in parallel as illustrated in the figure below. The shift value can be
read on the right-hand display, from 12 to 28.
100
60
20
Night-time lowering of the temperature
(Only enabled when an outdoor sensor is installed and the timer is connected)
If the remote control is installed (see paragraph 2.10), two different temperatures can
be set: one for the day-time and one for night-time. It is therefore possible to lower the
G-
temperature that the P.C.B. calculates in relation to the values provided by the outdoor
sensor by a quantity decided by the user for night-time operation. To do so, select the
night-time function "n" and using programming keys F and G, select a value between
0 and 12, depending how much the night-time temperature is to be lowered.
H
Test Function
The P.C.B. allows the boiler to be forced to the maximum or minimum power. Enable
G-
the test function and OO will appear on the right-hand display (see Fig. 3.8).
To select operation at maximum power, press the programming key + "F", two dashes
will appear at the top of the right-hand display (see Fig. 3.9).
This function is disabled when you press reset key "H" to quit the adjustments menu.
H
To select operation at minimum power, press the programming key - "G", two dashes
will appear at the bottom of the right-hand display (see Fig. 3.10). This function is
disabled when you press reset key "H" to quit the adjustments menu.
G-
Note: The boiler can be forced to the maximum and minimum power even without
enabling the test function but via the adjustments menu:
a - by pressing the Comfort key "K", the boiler is automatically forced to maximum
power (flue sweep function), two dashes appear at the top of the right-hand
H
display (see Fig. 3.9). This function is disabled by pressing the reset key "H".
b - by pressing keys "K" and "H" simultaneously, the boiler is forced to operate at
minimum power, two dashes appear at the bottom of the right-hand display (Fig.
3.10). This function is disabled by pressing the reset key "H".
G-
H
+20
External temperature (˚C)
t t
n n
6
-20