7
EN
1.2
Preliminary checks
a
WARNING
– Should it be necessary to access the areas in the
bottom part of the appliance, make sure that the
system components and pipes are not hot (risk of
burning).
– Before replenishing the heating system, put on pro-
tective gloves.
Commissioning of the
UNIQA REVOLUTION 25
boiler must be car-
ried out by professionally qualified technicians, after which the
boiler can operate automatically. It may, however, be necessary
for the user to start the appliance autonomously without involv-
ing a technician: for example, after a holiday.
First of all check that the gas isolation and water system valves
are open.
1.3
Ignition
After having carried out the preliminary checks, perform the
following to start the boiler:
– set the main system switch to "ON" in order for the display to
show the pressure level in the system during refilling
–
make sure that the operating mode is set to "Stand-by";
if this is
not the case, press the button
y
until "Stand-by" mode has
been selected
ON
Fig. 2
– on the display (1), check that the heating system pressure
when cold is
1-1.2 bar
. If this is not the case, open the filling
valve (2) and restore the heating system pressure until the
display (1) shows a reading of
1-1.2 bar
– close the filling valve (2)
– press and hold the button
y
for more than 3 seconds and
check whether normal operating conditions are restored.
2
1
Fig. 3
– select the "SUMMER"
l
operating mode by pressing and
holding the
y
button for at least 1 second. the value of the
delivery sensor detected at that moment will appear on the
display
– open one or more than one hot water tap. The boiler will work
at maximum power until the taps are closed.
Once the boiler has been commissioned in "SUMMER mode"
l
"WINTER mode"
n
can be selected by pressing and holding the
button
y
for at least 1 second. The value of the delivery water
temperature detected at that moment will appear on the dis-
play. In this case it is necessary to adjust the air thermostat/s to
the required temperature or if the system has a chrono-thermo-
stat, check that this is "active" and adjusted.
1.4
Adjusting the heating temperature
If the heating temperature is to be increased or decreased,
press the button
t
followed by the buttons
>
or
<
until the de-
sired temperature is reached. The temperature can be set to
between 20 and 80°C.
1.5
Adjusting the domestic hot water temper-
ature
If the domestic hot water temperature is to be increased or de-
creased, press the button
r
followed by the buttons
>
or
<
until
the desired temperature is reached. The temperature can be set
to between 10 and 60°C.
