5
3.3 TEMPERATURE CONTROL
Press and respectively to adjust the CH and
DHW ow temperature (if an indirect storage tank is tted).
When the burner is lit, display shows the symbol .
HEATING: while boiler is operating in heating mode, the
display shows the ashing symbol and the heating ow
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 ashing symbol and heating ow 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 ow 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
Identication 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 o the boiler, disconnect the electric power supply.
In the “O” operating mode the boiler stays o 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 ue is not blocked.
3 - CONTROL
PN 240012894 Rev. A [04/15/2020]
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