EN • 7
ENGLISH
FRANCAIS
NEDERLANDS
ESP
AÑOL
IT
ALIANO
DEUTSCH
664Y2800.B
DIRECTIONS FOR USE
Your system must be checked once a year by an approved
installer or maintenance company.
Starting the burner
During operation, the burner starts automatically as soon as
the boiler temperature drops under the required set point and
it stops as soon as the boiler reaches that temperature.
Control panel
SETTINGS PARAMETERS
Setting the domestic hot water temperature:
(Hot water temperature)
- Press
Mode
: The screen displays
PARA
.
- Press
Step
: the first character is
1
and the last two characters
give the current hot water temperature setting.
- To change this temperature, press
+
or
-
until the last two
digits show the desired temperature value.
- Press
Store
to save the new temperature setting.
- Press
Mode
twice to return to Pilot mode (normal operating
mode).
Enabling or disabling the hot water heating mode:
(hot water)
- Press
Mode
: The screen displays
PARA
.
- Press
Step
twice: the first character is
2
and the last two
characters give the current setting:
00
= disabled;
01
= enabled.
- To change this parameter, press
+
or
-
until the screen displays
the desired value:
00
= disabled;
01
= enabled.
- Press
Store
to save.
- Press
Mode
twice to return to Pilot mode (normal operating
mode).
Enabling or disabling Central Heating mode:
(heating)
- Press
Mode
: The screen displays
PARA
.
- Press
Step
three times: the first character is
3
and the last
two characters give the current setting:
00
= disabled;
01
= enabled.
- To change this parameter, press
+
or
-
until the screen displays
the desired value:
00
= disabled;
01
= enabled.
- Press
Store
to save.
- Press
Mode
twice to return to Pilot mode (normal operating
mode).
Setting the central heating temperature:
(maximum temperature for the heating circuit)
- Press
Mode
: The screen displays
PARA
.
- Press
Step
four times: the first character is
4
and the last
two characters give the current central heating temperature
setting.
- To change this temperature, press
+
or
-
until the last two
digits show the desired temperature value.
- Press
Store
to save the new temperature setting.
- Press
Mode
twice to return to Pilot mode (normal operating
mode).
Fault:
The temperature setting for the appliance and the safety
functions for its various parts are continuously monitored by
a regulator controlled by a microprocessor (the MCBA). In the
event of a fault, this MCBA disables the appliance and displays
an error code: the screen flashes displaying
E
as the first
character, followed by the error code.
To reset the appliance:
- Press "
Reset
" on the screen.
- Contact your installer of the fault happens again.
USERS GUIDE
Heating system
The central heating circuit must be pressurized (see in the
chapter “Installation” how to define the system pressure).
The pressure indicator is located on the right-hand side of the
display.
If your system needs to be refilled more than twice
a year, please contact your installer.
The CH pressure must be a minimum of 1 bar and must be
checked by the end user on a regular basis. If the pressure
drops under 0.5 bar, the integrated water pressure switch
blocks the appliance until the pressure in the system returns to
a level above 0.8 bar. The connection for a fill valve is provided
underneath the appliance. The installer can also fit the system
with a separate valve. Make sure that the appliance is powered
off when filling the system. To do this, toggle the Start/Stop
switch located on the left of the screen to Off.
(see the Control
panel).
For more information, please ask your installer when the system
is delivered.
A safety valve is provided at the underneath of the appliance.
If the system pressure exceeds 3 bars, this valve opens and
drains the water from the system. In this case, please contact
your installer.
bar
2
1
O
3
4
MCBA display
Pressure gauge
ON/OFF switch
Summer/Winter switch
Pre-cut for an optional
Control Unit controller