Immergas Maior Eolo 24 4E - Page 25

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INSTALLERUSER
MAINTENANCE TECHNICIAN
3.5 PROGRAMMING THE P.C.B.
e boiler is prepared for possible programming of
several operation parameters. By modifying these
parameters as described below, the boiler can be
adapted according to specic needs.
To access the programming phase, press the
“Summer/Winter” (4) and “Reset” (5) buttons
simultaneously for 8 seconds.
once the menu has been accessed, it is possible
to scroll through the three sub-manus present
(s, p, t) by pressing the “Summer/Winter” (4)
button for 2 seconds.
Use the “DHW regulator” selector (2), to select
the parameter and rotate the “CH regulator”
(1) to modify the value according to the range
available.
Id
Parameter
(ref. 17)
Parameter Description
Range
(ref. 21 Fig. 2-1)
Default
S0
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 power and the maximum heating power 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 changeable using
parameter (S1).
N.B.: the selection of the “Minimum heating power” and “Maximum heating power”
parameters, in the presence of a heating request, allows switch-on of the boiler and po-
wer supply of the modulator with current equal to the value of the respective set value.
0 - 60 %
Set ac-
cording
to factory
inspection
S1
Maximum CH
output
0 - 99 % 99
S2
Gas type selec-
tion
e setting of this function is used to adjust the boiler in order to function with the
correct type of gas
nG - Methane
lG - LPG
Ci - China
e same
as the type
of gas being
used
S3 Boiler type
Establishes the boiler type and its functioning mode
0 = combi
1 = 24 kW storage tank
2 = 28 kW storage tank
3 = 32kW storage tank
0 - 3 0
S4
Ignition
power
Establishes the power at which the boiler must switch on 0 - 50 %
Set ac-
cording
to factory
inspection
With the menu active on the indicator (17) the
parameter n° is displayed while indicator (21)
displays the parameter value.
Press the “Reset” button (5) for 2 seconds to
memorise the variation of the parameters
Memorisation is displayed by the ashing indi-
cators (17 and 21).
Exit the programming phase by waiting for
2minutes or by pressing the, press the “Summer/
Winter” (4) and “Reset” (5) buttons simulta-
neously for 5 seconds.
3.4 INFORMATION MENU.
Pressing the “Summer/Winter” button (4) for 4
seconds, the “Information menu” is activated,
which allows to display some boiler functioning
parameters.
Press the “Reset” button (5) to scroll the various
parameters.
To exit the menu, press the “Summer/Winter”
button (4) again for 4 seconds or wait for 120
seconds.
With the menu active on the indicator (17) the
parameter n° is displayed while indicator (21)
displays the parameter value.
Id
Parameter
(ref. 17)
Description
d1 Displays the ame signal (uA)
d2 Displays the primary exchanger output instant heating ow temperature
d3 Displays the instant output temperature from the DHW exchanger
d4 Displays the temperature set for the central heating set (if remote control is present)
d5 Displays the temperature set for the DHW set (if remote control is present)
d6
Displays the external temperature
(if external probe present)
If the temperature is below zero, the value is displayed ashing.
d7 Display the temperature of the inlet DHW.