20
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
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AN
3.7 PROGRAMMING THE P.C.B.
The boiler is prepared for possible programming of
several operation parameters. By modifying these
parameters as described below, the boiler can be
adapted according to specific needs.
To access the programming phase, proceed as
follows (
Fig. 10
):
- press buttons (1) and (2) for 5 about seconds
until the programming mode is accessed on
the display;
- using keys (3) and (4), select the parameter to
be changed indicated in the following table:
- adjust the corresponding value consulting the
table using keys (5) and (6): first pressure of
buttons displays the current value;
- confirm the value set by pressing the Reset but-
ton (1) for about 5 seconds. Only the displayed
value is saved.
Note:
2 minutes after no button is touched
will automatically cancel the operation or by
pressing buttons (1) and (2) simultaneously for
about 5 seconds. Modified but not confirmed
values are to be restored to the value preceding
the modification.
Id
Parameter
Parameter
Description
Range
(ref. 9 Fig. 2-1)
Default
P00
Solar panels
selection
The setting of this function is used to set the boiler in order to function with the use
of solar panels. By setting the parameter P0 in "solar"
on
mode, the switching off of
the burner is correlated to the adjustment of the domestic hot water temperature. In
OFF
mode, the burner is switched off at maximum value.
on - oF
oF
P01
Gas type selec-
tion
The setting of this function is used to adjust the boiler so that it can operate with the
correct type of gas
nG - Methane
LG - LPG
Set accord-
ing to the
gas being
used
P02
Heating switch-
on delay request
from room
thermostat and
remote control.
The boiler is set to switch-on 3 seconds after the request. In the event of particular
systems (e.g. area systems with motorised thermostatic valves etc.) it may be neces-
sary to delay ignition
00 - 20
(00 = 3 seconds
01 = 30 seconds
02 = 60 seconds
20 = 600 sec-
onds)
00
P03
Function
anti-leakage
This function reduces the heating temperature to 57°C in the case that domestic hot
water circulation is detected in the heating mode.
on - oF
oF
P04
Domestic hot
water post circu-
lation function
With the post-circulation function active after domestic hot water withdrawal, the
pump remains on for 2.5 seconds in winter time and 1.5 seconds in summer time to
reduce the formation of limestone.
on - oF
on
P05
Minimum CH
output
The boiler also has electronic modulation that adapts the boiler potentiality to the
effective heating demand of the house. Then the boiler works normally in a variable
gas pressure field between the minimum heating output and the maximum heating
output depending on the system's heating load.
NOTE:
the boiler is produced and calibrated in the central heating phase at nominal
output. Approximately 10 minutes are needed to reach the nominal heat output,
which can be changed using the parameter (P08).
NOTE:
the selection of the “Minimum heating output” and “Maximum heating out-
put” parameters, in presence of a heating request, allows boiler ignition and power
supply of the modulator with current equal to the value of the respective set value.
00 - 70 %
Set
according
to factory
inspection
P06
Maximum CH
output
00 - 99
(99 = 100%)
99
P07
Central heating
ignitions timer
The boiler has electronic timing, which prevents the burner from igniting too often
in central heating mode
01 - 20
01 = 30 seconds
02 = 60 seconds
20 = 600 sec-
onds
06
P08
Central heating
ramp timer
In the ignition phase, the boiler performs an ignition ramp in order to arrive at the
maximum nominal power set (P06).
01 - 20
01 = 30 seconds
02 = 60 seconds
20 = 600 sec-
onds
20
P09
Boiler type
Not used on this model.
01
01
P10
Power
ignition
Not used on this model.
- - -
- - -
P11
Minimum heat-
ing setting
Defines the minimum flow temperature
35 - 80 °C
35 °C
