6
7
No fl ame - F1
Boiler is switched off, for
example by reason of
gas supply failure. LED 4
under symbol fl ash.
Boiler can be restarted by
switching off and on (from position „
I
” to
position „
0
“ and again to position „
I
“ by
mains on/off switch). If fault is frequent,
call service centre.
Loss of circuit heating water - F0
Pressure is under 0,7
Bar. Boiler is switched off,
LED 1 and LED 4 under
symbols and fl ashes.
After fi lling system up to
1- 2 Bar the boiler automatically starts.
For fi lling can be used refi lling valve at
the bottom of boiler (see fi g. 4). If fault is
frequent, call service centre.
Other boiler faults (from F2 to F8)
Boiler switched off itself.
LED 4 under symbol
fl ash. It is necessary to
call service centre.
Fault messages
fi g. 3
Operation diagram
Boiler memory fault - F9
Boiler works, but possi-
bility changes in setting
exists. LED 3 under sym-
bol lights continuously.
Switch the boiler off and
on (from position „
I
” to position „
0
“ and
again to position „
I
“ by mains on/off
switch). Then check boiler parameters
(see Water temperature setting). Let
check the boiler setting by service centre
occasionally.
Factory setting:
- DHW temperature 60°C
- CH temperature 50°C
- max. heating power 15 kW
Note:
The preparation for and commencing
of the boiler operation may only be carried
out by a specialised service centre!
Before starting the boiler when it
has been put into operation, check
the following facts:
• The power cord must be plugged into the
socket.
• The gas valve that feeds the boiler must
be open.
• The water pressure in the heating system
should be between 1 and 2 bar
Now the boiler is ready to be started.
Boiler start
Set the mains on/off switch to the “on”
position (“I”). Display light up.
Note:
In case of safety switch-off due to
extinction of fl ame or the fl ue thermostat
reaction (version 24 BOV) LED 4 under
symbol starts fl ash. Boiler can be un-
blocking by switching the boiler off and on
(from position „
I
” to position „
0
“ and again
to position „
I
“ by mains on/off switch).
In case of safety switch-off due to overheat
thermostat Led 4 under symbol fl ash
too, but boiler can be unblocking only by
service centre and this act is not guarantee
repair.
Warning:
The boiler must not be operated
if the safety elements (e.g. overheat
thermostat, fl ue termostat) are dis abled
or re placed with elements different from
those specifi ed by the manufacturer.
Boiler switch-off
Set the mains on/off switch to the “off”
position (“0”).
If the boiler is going to be switched off
for a longer time, it is recommended to
disconnect boiler from the electricity source
and close gas valve. This must be done
with reference to ambient temperature,
because there is the risk of freezing boiler
and system in frost weather.
Setting SUMMER mode (only DHW)
• Start the boiler;
• Select “
– –
” for CH temperature as
described under Control and Signalling
(CH temperature setting);
• Activate the basic state by MODE button.
Setting WINTER mode (CH + DHW)
• Start the boiler;
• Select the CH temperature instead of “
– –
”
as described under Control and Signalling
(CH temperature setting);
• Activate the basic state by MODE button
Boiler Start and Switch-Off
Operation without a room
thermostat
Boiler keeps CH temperature on
setting value. The room thermostat is
not connected; its contacts must be
interconnected (by utilizing a jumper).
• Set the desired temperature value as
described under Control and Signalling
(CH temperature setting);
Operation with a room thermostat
Boiler keeps CH temperature on setting
value, with breaks in operation dependent
upon the temperature in the room in which
the thermostat is installed. The radiator in
that room must not be equipped with a
thermostatic valve head. The settings are
the same as the operation without the room
thermostat, but the jumper is removed and
the room thermostat is connected to the
contacts.
Boiler Regulation
Pressure in system
DHW temperature
CH temperature
Pressing MODE button
Keep the pressure CH
on 1 - 2 Bar by fi lling
or draining system
Confi rm by MODE
Confi rm by MODE
