12
C607215 - GB
INSTRUCTIONS FOR USERS
To switch off the boiler, disconnect the electric power supply. With the gas boiler in “
OFF
” mode (section 3.2), the electric circuits remain
powered and the anti-freeze function is enabled (section 8).
6. TURNING OFF THE BOILER
The climate controller sends two types of signals:
FAULT
and
BLOCK
.
FAULT
In the presence of a fault the display shows the symbols
and the flashing <
ERROR
>
message.
The fault is identified with an error code followed by a letter and cannot be reset by the user.
Call the authorised Service Centre.
0606_2207
9. TROUBLESHOOTING
7. GAS CONVERSION
The boilers can operate both on natural gas and
LPG
.
All gas conversions must be made by an authorised Service Engineer.
Do not drain the whole system as filling up with water again causes unnecessary and harmful scale to build up inside the boiler and the
heating elements. If the boiler is not used during winter and is therefore exposed to the danger of frost, add some specific anti-freeze to
the water in the system (e.g.: propylene glycol coupled with corrosion and scale inhibitors). The electronic boiler management system
includes a “frost protection” function for the heating system which, when delivery temperature falls below 5°C, operates the burner until
a delivery temperature of 30°C is reached.
The frost protection function is enabled if:
* the boiler is electrically powered;
* the gas tap is open;
* the system is at the correct pressure;
* the boiler is not blocked.
8. PROLONGED SHUTDOWN. FROST PROTECTION
0702_1201 / C
G_1891
System filling tap
Boiler drain tap
Figure 3
System drain tap
