Immergas MINI EOLO 28 3E - Programming the P.C.B

42
INSTALLER
USER
MAINTENANCE TECHNICIAN
TECHNICAL DATA
3.8 Programming the P.C.B.
e boiler is prepared for possible programming of several op-
eration parameters. By modifying these parameters as described
below, the boiler can be adapted according to specic needs.
To access the programming phase, proceed as follows (references
Fig. 33):
- press buttons (1) and (2) at the same time for approximately 8
seconds;
- using keys (3) and (4), select the parameter to be changed indi-
cated in the following table:
- adjust the corresponding value consulting the table using keys
(5) and (6);
- conrm the value set by pressing the Reset button (1) for about
3 seconds; by pressing keys (3) + and (4) - at the same time exit
the function without memorising the modications made.
N.B.: aer a period of time, without touching any keys, the
operation cancels automatically.
Id
Parameter
Parameter Description
Range
(ref. 16 Fig. 33)
Default
P1
Boiler mode
(DO NOT USE)
It establishes whether the boiler functions in instant or storage mode.
0 - instant boiler
1 - Boiler with
storage tank
0
P2 Display lighting
Establishes the display lighting mode:
0 = (O) the display is always lit with low intensity
1 = (Auto) the display lights up during use and lowers aer 5 seconds of
inactivity. In the case of anomaly the display ashes.
2 = (On) the display is always lit with high intensity.
0 - O
1 - Auto
2 - On
1
P3
DHW
thermostat
With the “correlated” thermostat setting, boiler switch-o takes place on the
basis of the temperature set.
While with the setting of the “xed” DHW thermostat the switch-o tem-
perature is xed at the maximum value independently from the value set on
the control panel.
0 - Fixed
1 - Correlated
1
P4
Minimum CH
output
e boiler also has electronic modulation that adapts the boiler potentiality
to the eective heating demand of the house. en the boiler works normally
in a variable gas pressure eld between the minimum heating output and the
maximum heating output depending on the system's heating load.
N.B.: 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 (P5).
N.B.: the selection of the “Minimum heating output” and “Maximum heat-
ing output” 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.
0 - 63 %
Set according to
factory
inspection
P5
Maximum CH
output
0 - 99 % 99
P6
Central heating
ignitions timer
e boiler has electronic timing, which prevents the burner from igniting too
oen in central heating mode.
0 - 20 (0 - 10
minutes)
(01 equals 30
seconds)
6
(3’)
P7
Central heating
ramp timer
In the ignition phase, the boiler performs an ignition ramp in order to arrive
at the maximum nominal power set.
0 - 28 (0 - 14
minutes)
(01 equals 30
seconds)
28
(14’)
P8
Heating switch-
on delay request
from room
thermostat and
remote control.
e boiler is set to switch-on immediately aer a request. In the case of par-
ticular systems (e.g. area systems with motorised thermostatic valves etc.) it
could be necessary to delay switch-on.
0 - 20 (0 - 10
minutes)
(01 equals 30
seconds)
0
(0’)
P9
Solar mode
(DHW ignition
delay.)
e boiler is set to switch-on immediately aer a request. for DHW In the case
of coupling with solar storage tanks positioned upstream from the boiler, it is
possible to compensate the distance of the storage tank in order to allow the
hot water to reach the utility, setting the necessary time and therefore verifying
that the water is hot enough (see Par. Solar panels coupling).
0 - 20 seconds 0