Biasi Activ A 25S, User Manual And Installation Instructions

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USE
USEFUL ADVICE
16 (increase) keys. In order to exit the
INFO mode, hold keys 12 and 16 (Fig. 3.5)
pressed at the same time.
The table summarises the possible values
visible in INFO mode.
Value visualised Index
Primary circuit pressure J00 + value
External temperature J01 + value
K curve value configured
in loco
J02 + value
Offset climatic curve value J03 + value
Calculated heating set
point (with climatic curve
or set configured)
J04 + value
Temperature NTC delivery J05 + value
Temperature NTC return
J06 + value
Domestic set ----
Temp. Dhw inlet (if
foreseen)
----
Temp. Dhw output ----
Dhw capacity ----
Flue temperature (if
foreseen)
J11 + value
Fan speed (if foreseen) J12 + value
Pressure transducer
pressure (if foreseen)
J13 + value
Ionization value J14 + value
Number of months to
maintenance
J15 + value
3 star status
(ON=01, OFF=00)
----
HWCH Hardware code
high
J17 + value
HWCL Hardware code low J18 + value
SWCH Software code high J19 + value
SWCL Software code low
J20 + value
3.8 Remote anomaly code
If the boiler is connected to remote (option-
al), a code that indicates a boiler anomaly is
displayed in the centre of the display.
The anomaly in progress is indicated by a
numeric code followed by the letter
E .
The table summarises the possible codes
displayed on the remote.
Anomaly Code
Lack of burner ignition E01
Safety thermostat lockout E02
General lockout E03
Lack of circulation pump E04
Faulty fan control system / air
pressure / flue thermostat
E05
Faulty c.h. temp. probe NTC1
or NTC2
E06
Faulty external temp. probe
NTC (with K set)
E08
Flame detection error E11
Lack of circulation T >105°C E14
3.9 Flue probe
The flue probe 20 and safety thermal fuse
26 indicated in Fig. 3.7 are a safety device.
The flue probe 20 intervenes when the flue
temperature exceeds 110°C placing the
boiler in safety block switching it off.
To reset normal boiler functioning, just press
the 13 (Fig. 3.5) key.
If flue probe 20 does not intervene and,
therefore does not send the boiler into se-
curity lockout, thermofusible 26 enters into
function as a further safety measure.
This component sends the boiler into se-
curity lockout when the flue temperature
reaches 167°C.