84
EN
– press the button
>
once again to make the boiler operate
at maximum power. If the gas pressure values are correct
it is possible to determine the combustion data and take a
reading of the combustion efficiency as provided for by leg-
islation in force
– press the button
y
to exit the "Chimney sweep Proce-
dure”. The boiler water delivery temperature will appear on
the display
– disconnect the pressure gauges, carefully close the pres-
sure points (6) and (7), put the control panel back to the
original position and refit the front panel (2).
Gas supply pressure
Type of gas
G20
G30
G31
Pressure (mbar)
20
28-30
37
Installation with SPLIT PIPE SYSTEM smoke outlet
Model
Heat
Output
Pressure at nozzles (mbar)
G20
G30
G31
Brava Slim 25 BF
Max
12,4
28
36
min
0,8
2,3
2,9
Brava Slim 30 BF
Max
12,7
28
36
min
0,6
2,7
3,5
Installation with CONCENTRIC smoke outlet
Model
Heat
Output
Pressure at nozzles (mbar)
G20
G30
G31
Brava Slim 25 BF
Max
12,7
28
36
min
1,8
3,2
4
Brava Slim 30 BF
Max
13,1
28
36
min
1,5
3,9
4,9
If the gas pressure values are different from the values indi-
cated in the table, adjust the gas nozzle pressure as described
in the section below.
3.7.2 Adjusting gas pressure at the nozzles
m
CAUTION
Considering that:
– the front panel (2) has already been removed and
the point (6) is connected to the pressure gauge
– the main system switch must be set to "ON"
– the gas supply must be open
– there must be no current requests for heat ("Sum-
mer" mode
l
with hot water valve closed or
"Winter"
n
with air thermostats open)
– the adjustments described below must be carried out
in sequence.
Adjusting maximum gas pressure:
– press and hold down the buttons
>
and
y
at the same
time for approximately 6 seconds until the message "MA"
appears on the display alternating with "nu"
– the boiler will start up and the message "P01" will appear
on the display (Adjusting maximum gas pressure)
– press the buttons
>
or
<
until the pressure value indicated
in the table appears on the pressure gauge
– once the value indicated in the table has been reached,
press the button
y
for approximately 2 seconds to con-
firm the value which will then flash once.
Adjusting minimum gas pressure:
– press the button
r
twice, the message "P00" will appear
on the display
– press the buttons
>
or
<
until the pressure value indicated
in the table appears on the pressure gauge
– once the value indicated in the table has been reached,
press the button
y
for approximately 2 seconds to con-
firm the value which will then flash once.
– press and hold down the buttons
>
and
y
at the same
time for approximately 6 seconds until the water delivery
temperature appears on the display and the boiler shuts
down/starts up.
Содержание Brava Slim 25 BF
Страница 122: ...122 ...
Страница 123: ...123 ...