32
table of coUnter displayed
type no. description
range
U/m
step
Co
0.0 total no. of boiler
operating hours
0 ..
99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
Co
0.1 total no. of burner
operating hours
0 ..
99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
Co
0.2 total no. of burner
ignitions
0 ..
99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
Co
0.3 total no. faults
0 ..
99
x 1
1
Co
0.4
total no. of
times installer
parameters
"ts"accessed
0 ..
99
x 1
1
Co
0.5
total no. of times
oeM parameters
accessed
0 ..
99
x 1
1
Co
0.6 Countdown to the
next service
1 ..
199
months
1
table of activated alarms/faUlts
type no. description
al
00 last activated alarm/fault
al
01 last but one activated alarm/fault
al
02 third from last activated alarm/fault
al
03 Previous activated alarm/fault
al
04 Previous activated alarm/fault
al
05 Previous activated alarm/fault
al
06 Previous activated alarm/fault
al
07 Previous activated alarm/fault
al
08 Previous activated alarm/fault
al
09 Previous activated alarm/fault
7.7
checks and adjustments
7.7.1 chimney sweep function
the chimney sweeper function is used by the qualified
maintenance technician to check the gas pressure at the
nozzles, detect the combustion parameters and to measure
the combustion efficiency required by legislation in force.
this function lasts 15 minutes and is activated by proceeding
as follows:
– if the panel (2) has not already been removed, remove the
two screws (1), pull the front panel (2) forwards and release
it from the top by lifting it
1
2
Fig. 33
– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
3
a
b
5
4
Fig. 34
– isolate the gas cock
– loosen the "nozzle pressure" point (6) and the screw of
the "supply pressure" point (7) and connect each one to a
pressure gauge
6
7
Fig. 35
– open the gas cock
– power the boiler by setting the main switch to "oN"
– press the button
s
until "sUMMeR" mode
l
has been
selected
– press and hold down the buttons
o
and
>
at the same
time for approximately 10 seconds until the message “Hi”
appears on the display together with the flashing symbols
l
and
n
