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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 confirm the val-
ue which will then flash once
– press and hold down the buttons
for approximately 6 seconds until the water delivery tempera-
ture appears on the display and the boiler shuts down
– close the valves which were opened previously
– disconnect the pressure gauges, carefully close the pressure
points (6) and (7), put the control panel back to the original po-
sition and refit the front panel (2).
Gas supply pressure
Type of gas
G20
Pressure (mbar)
20
Installation with SPLIT PIPE SYSTEM smoke outlet
Heat Out-
Model
put
Max
12,2 - 12,6
Brava Slim
25 BF
min
0,8 - 1,1
Max
12,5 - 12,9
Brava Slim
30 BF
min
0,6 - 0,9
Max
10,4 - 10,8
Brava Slim
40 BF
min
0,5 - 0,8
>
and
y
at the same time
6
7
Fig. 53
G30
G31
28-30
37
Pressure at nozzles (mbar)
G20
G30
G31
27,8 - 28,2
35,8 - 36,2
2,2 - 2,5
2,8 - 3,1
27,8 - 28,2
35,8 - 36,2
2,6 - 2,9
3,4 - 3,7
26,8 - 27,2
34,8 - 35,2
1,2 - 1,5
2,0 - 2,3
Installation with CONCENTRIC smoke outlet
Heat Out-
Model
put
Max
12,5 - 12,9
Brava Slim
25 BF
min
1,7 - 2,0
Max
12,9 - 13,3
Brava Slim
30 BF
min
1,4 - 1,7
Max
11,2 - 11,6
Brava Slim
40 BF
min
0,8 - 1,1
7.9
Domestic hot water comfort function (pre-
heating)
models have a "domestic hot water comfort" func-
Brava Slim BF
tion which ensures the best performance in terms of domestic
hot water, reducing the time necessary for the hot water to be-
come available and ensuring that the temperature is stable.
To activate the function:
– select parameter "PAR 22" (see "Parameter setting and dis-
play") and set it to a 1
– exit parameter settings and press button
seconds until the symbol
r
to flash indicating that the function has been activated.
To deactivate the function:
– press button
>
again for approximately 5 seconds until the
symbols
r
and
R
appear on the display and begin to flash
indicating that the function has been deactivated.
Pressure at nozzles (mbar)
G20
G30
G31
27,8 - 28,2
35,8 - 36,2
3,1 - 3,4
3,9 - 4,2
27,8 - 28,2
35,8 - 36,2
3,8 - 4,1
4,8 - 5,1
26,8 - 27,2
34,8 - 35,2
2,4 - 2,7
2,9 - 3,2
>
for approximately 5
appears on the display and begins
81
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