32
EN
Adjusting maximum gas pressure:
– 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 "MA" appears
on the display alternating with "nu"
–
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 temper-
ature appears on the display and the boiler shuts down/starts
up.
– close the valves which were opened previously.
6.7
Gas conversion
Vera OF ErP
models can be transformed from operating with G20
(methane) to G31 (LPG), by installing the “Nozzle kit for G31”
code 8059253 (for
Vera 25 OF ErP
), to be ordered separately from
the boiler and by changing parameter
“tS 0.3”
.
m
CAUTION
The maintenance interventions described must ONLY
be carried out the professionally qualified personnel.
a
WARNING
Before carrying out any interventions described:
– set the main system switch to "OFF"
– close the gas valve
– make sure that no hot parts inside the appliance are
touched.
OFF
Fig. 43
6.7.1
Preliminary operations
m
CAUTION
Warning test
To carry out the conversion:
– remove the screws (1), pull the front panel (2) forwards and
release it from the top by lifting it
1
2
Fig. 44
