90
EN
Adjusting maximum gas pressure:
– press the button
s
until "SUMMER" mode
l
has been
selected
– turn the domestic hot water knob as far as it will go
r
– press and hold down the buttons
o
and
s
at the same time
for approximately 6 seconds until the message "Au" appears
on the display alternating with "to"
–
open one or more than one hot water tap
– 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
s
for approximately 2 seconds to confirm the value
which will then flash once.
Adjusting minimum gas pressure:
– press the button
o
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
s
for approximately 2 seconds to confirm the value
which will then flash once
– press and hold down the buttons
o
and
s
at the same time for
approximately 6 seconds until the water delivery temperature
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
position and refit the front panel (2).
6
7
Fig. 40
Gas supply pressure
Type of gas
G20
G30
G31
Pressure (mbar)
20
28-30
37
Pressure at nozzles
Type of gas
G20
G30
G31
Pressure
at nozzles
(mbar)
at Max heat output 9,8 - 10,2 27,8 - 28,2 35,8 - 36,2
at min heat output
1,9 - 2,2
4,9 - 5,2
6,3 - 6,6
