Programming The P.c.b - Immergas MINI EOLO X 24 3 E Instructions And Warnings

3.8

PROGRAMMING THE P.C.B.

The 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 specific needs.
To access the programming phase, proceed as follows (references
Fig. 34):
- 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:
Id
Parameter
Parameter
Boiler mode
P1
(DO NOT USE)
P2 Display lighting
DHW
thermostat
P3 (when the boiler
is connected to an
external cylinder)
Minimum CH
P4
output
Maximum CH
P5
output
Central heating
P6
ignitions timer
Central heating
P7
ramp timer
Heating switch-
on delay request
P8 from room
thermostat and
remote control.
Solar mode
P9 (DHW ignition
delay)
42
It establishes whether the boiler functions in instant or storage mode.
Establishes the display lighting mode:
0 = (Off) the display is always lit with low intensity
1 = (Auto) the display lights up during use and lowers after 15 seconds of
inactivity. In the case of anomaly the display flashes.
2 = (On) the display is always lit with high intensity.
With the setting of the domestic hot water thermostat on "Hysterisis 1" the
boiler ignites to heat the domestic hot water when the water contained in the
storage tank unit falls by 3°C with respect to the temperature set, while on
"Hysterisis 2" ignition takes place when the water contained in the storage
tank unit falls by 10°C with respect to the temperature set.
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.
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.
The boiler has electronic timing, which prevents the burner from igniting too
often in central heating mode.
In the ignition phase, the boiler performs an ignition ramp in order to arrive
at the maximum nominal power set.
The boiler is set to switch-on immediately after 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.
This function does not affect the correct functioning of this boiler model.
- adjust the corresponding value consulting the table using keys
(5) and (6);
- confirm 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 modifications made.
N.B.: after a period of time, without touching any keys, the
operation cancels automatically.
Description
Range
Default
(ref. 16 Fig. 34)
0 - instant boiler
1 - Boiler with 0
storage tank
0 - Off
1 - Auto 1
2 - On
0 - Hysteresis 1
(Standard setting) 0
1 - Hysteresis 2
Set according to
0 - 63 % factory
inspection
0 - 99 % 99
0 - 20 (0 - 10
minutes) 6
(01 equals 30 (3')
seconds)
0 - 28 (0 - 14
minutes) 28
(01 equals 30 (14')
seconds)
0 - 20 (0 - 10
minutes) 0
(01 equals 30 (0')
seconds)
0 - 20 seconds 0