40
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
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
– 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.
6
Fig. 50
m
CAUTION
External casing seals off the appliance from the
environment in which it is installed. Check regularly,
and always after performing maintenance work, that
the front, side and all gaskets have been correctly
closed and are not worn or damaged.
Gas supply pressure
Type of gas G20 G30 G31
Pressure (mbar) 20 29 37
Installations with SPLIT and CONCENTRIC flue gas outlet pipe
systems
Model
Heat
Output
Pressure at nozzles (mbar)
G20 G30 G31
UNIQA
REVOLUTION
Max 13,3 - 13,8 27,2 - 27,7 35,2 - 35,7
min 2,9 - 3,2 5,0 - 5,4 6,1 - 6,5
7.8 Checking the CO
2
with the chimney sweep
function
This function lasts 15 minutes and is activated by proceeding
as follows:
m
CAUTION
There must be no heat requests in progress (hot water
valves closed or TA open/not activated).
– open the gas valve
– power the boiler by setting the main switch to "ON"
ON
Fig. 51
– press button
y
and hold for at least 1 second, until you
select “SUMMER” mode
l
, where it is not already selected
– press and hold down the buttons
<
and
>
at the same time
for approximately 10 seconds until the message “Hi” appears
on the display together with the flashing symbols
l
and
n
–
open one or more than one hot water tap
– press the
>
button to run the boiler at maximum power “Hi”
m
CAUTION
Ensure that the front panel on the boiler is closed before
reading the CO
2
value.
– take the CO
2
reading using the specific points on the outlet
ducts
– press the
<
button to run the boiler at minimum power “Lo”.
The message “Lo” is displayed on the screen and the
l
and
n
symbols flash