5
3.3 TEMPERATURE CONTROL
Press
and
respectively to adjust the CH and
DHW flow temperature (if an indirect storage tank is fitted).
When the burner is lit, display shows the symbol
.
HEATING
: while boiler is operating in heating mode, the
display shows the flashing symbol
and the heating flow
temperature °F / °C.
When connected to an Outdoor Temperature Sensor,
indirectly adjusts room temperature (factory setting 68°F /
20°C).
DHW
:
While boiler is operating in DHW mode, display
shows the flashing symbol and heating flow temperature
°F / °C.
3.4 BOILER INFORMATION MENU (See Below)
Press
and hold for at least 1 second, to display the
information indicated in the table. Press
to exit.
DESCRIPTION
DESCRIPTION
00
Secondary fault internal code
09
Setpoint Central Heating (°F/°C)
01
Heating flow temperature (°F/°C)
10/11
Manufacturing information
02
Outdoor temperature (°F/°C)
12
Flue sensor temperature (°F/°C)
03
Indirect Tank DHW temperature (boiler CH only)
13
Manufacturing information
04
Domestic hot water temperature (boiler with plate
exchanger)
14
Identification Open Therm communication
05
Water pressure in heating system (PSI/bar)
15
Manufacturing information
06
Heating return temperature (°F/°C)
16
Manufacturing information
07
Thermo fuse status (000/001)
17
Fan speed (“i17”x100)
08
Not used
18
Manufacturing information
3.5 SHUTTING OFF THE BOILER
To turn off the boiler, disconnect the electric power supply.
In the “Off” operating mode the boiler stays off but the
electrical circuits remain powered and the frost protection
function remains active.
3.6 FROST PROTECTION MODE
The electronic boiler management system includes a
“frost protection” function for the heating system which,
when delivery temperature falls below 41°F (5°C), lights
the burner until a delivery temperature of 86°F (30°C) is
reached.
This function is only operative if the boiler is electrically
powered and there is gas with normal system pressure and
the flue is not blocked.
3 - CONTROL
PN 240012896 Rev. A [01/31/2020]
