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
Vera OF ErP
boiler must be carried out by
professionally qualified Personnel after which the boiler can op-
erate automatically. It may however be necessary for the User to
start the appliance autonomously without involving a technician:
for example, after a holiday . In these cases certain checks and
the following operations must be carried:
– check that the gas isolation and water system valves are open
– using a pressure gauge (1), check that the heating system
pressure when cold is
1-1.2 bar
. If this is not the case, open
the filling valve, which is to be prearranged on the system re-
turn, and restore the heating system pressure until the pres-
sure gauge (1) shows a reading of
1-1.2 bar
– close the filling valve.
1
Fig. 2
1.3
Ignition
After having carried out the preliminary checks, perform the
following to start the boiler:
– set the main system switch to "ON"
ON
Fig. 3
– on the display, check that the operating mode on the display
is "SUMMER”
l
and if necessary select it by pressing and
holding the button
s
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
s
for at least 1 second. the value of the heating 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 delivery temperature
If the boiler delivery temperature is to be increased or decreased
it is possible to act on the
t
knob on the control panel rather
than having to modify the specific parameters. The temperature
can be set to between 20 and 80°C.
Fig. 4
1.5
Adjusting the domestic hot water temper-
ature
If the domestic hot water temperature is to be increased or de-
creased, act on the
r
knob on the control panel. The tempera-
ture can be set to between 10 and 60°C.
Fig. 5
