6
– open the gas valve
– power the boiler by setting the main switch to "ON"
– press the button
y
mode
l
has been selected
– press and hold down the buttons
for approximately 10 seconds until the message "Hi" appears
on the display together with the flashing symbols
– press the button
>
to make the boiler operate at maximum
power "Hi" and check that the mains gas pressure value on the
pressure gauge is correct. Take a reading of the combustion
data and measure the combustion efficiency.
– press the button
<
to make the boiler operate at minimum
power "Lo". The message "Lo" will appear on the display
together with the flashing symbols
92
ON
for at least 1 second until "SUMMER"
<
and
>
at the same time
l
l
and
n
– take the combustion data reading
– press the button
Procedure". The boiler water delivery temperature will
appear on the display
– disconnect the pressure gauge, carefully close the pressure
point (6), put the control panel back to the original position
and refit the front panel (2).
Fig. 37
Gas supply pressure
Type of gas
Pressure (mbar)
3.8
Gas conversion
Brava Slim HE 25/55 - 30/55 ErP
without the need for any mechanical conversion. Simply select
parameter "PAR 03" (see "Parameter setting and display") and
set the type of gas to be used.
Fig. 38
If changing the type of gas to be used, carry out the entire
appliance "COMMISSIONING" phase.
m
CAUTION
Conversion may ONLY be carried out by Professionally
Qualified Personnel.
and
n
y
to exit the "Chimney sweeper
G20
G31
20
37
models can work with G20 or G31
EN