Info Modality; Function Modes Setting Modality; Removal Of The Control Panel Electronic P.c.b - Biasi Advance Plus 25C Service Manual

LCd fuNCTIoN
Flame detection error (An flashing + er-
ror flashing number)

10.3 Info modality

The INFO mode allows the display of some information on the
boiler functioning status. In case of malfunctioning of the boiler,
it may be useful to communicate such information to the Author-
ised Service Centre Engineer so that the causes can be under-
stood.
In order to access the INFO mode, press keys A and C (Figure
10.1) at the same time until the letter di appears on the display
that alternates with a code (Figure 10.1).
figure 10.2
To scroll the values press B (reduce) and A (increase). keys (Fig-
ure 10.1). In order to exit the INFO mode, hold keys A and C (Fig-
ure 10.1) pressed at the same time. The following table gives de-
tails of each parameter and the possible value that can be show.
description
External temperature °C (if fitted)
K value (external probe diagram)
(the value is x 10)
Offset
(Translation of K diagram ± 15°C)
C.h. temperature °C
(calculated by external sensor)
C.h. flow temperature °C
C.h. return temperature °C (if fitted) d6
D.h.w. temperature °C
Flue temperature °C
Fan speedy (the value has to be x
100 = 4400 rpm)
SW version BC (burner control)
SW version MB (main board)
Tab. 10.1

10.4 function modes setting modality

It is possible to select the various boiler control function modes
hereafter named "parameters" by using the keys of the control
panel p.c.b.
During the function modes setting, the boiler does not operate.
CoNTRoL PANEL ELECTRoNIC P.C.B.
Parameter value
d1 -5
d2 12
d3 -10
d4 66
d5 78
44
d7 40
d8 67
d9 44
dc 01
dd 03
To get in function modes setting modality see section 9.4
10.5 Removal of the control panel electronic
p.c.b
Warning: isolate the boiler from the mains electrici-
ty supply before removing any covering or compo-
nent.
1 Remove all the body panels (see section 2.2).
2 Gain access to the parts located inside the Control panel elec-
tronic p.c.b. as explained in the section 2.3 of this manual.
3 Remove all the wiring G connected to the Control panel elec-
tronic p.c.b. (Figure 10.3).
h
G
figure 10.3
4 Unscrew the screws H.
5 Delicately flex the hooks I in the directions indicated (Figure
10.3) in order to release the circuit from the box.
6 Remove the Control panel electronic p.c.b.
7 Reassemble the Control panel electronic p.c.b. carrying out
the removal operations in the reverse order.
I
h
G
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