Green Heating Technology
12
or
) the burner won’t turn on. Nevertheless, any time it is possible, the pump will work,
making the water circulate in the system and reducing in this way the possibility of freezing.
ATTENTION: the anti-frost protections cannot intervene in the absence of electricity. If you an
-
ticipate this possibility, we recommend you add a good brand of anti-freeze to the heating sys
-
tem, following the producer’s instructions.
We recommend to ask directly the installer/technician about the type of antifreeze product
put in the heating system during installation.
When the power comes back on, the boiler will check the temperature measured by the two
probes and, if it suspects freezing verified by a particular automatic control cycle, alarm 39 will
be triggered. For more details, see the relative description in the paragraph "Alarms - boiler
block" on page 41.
We recommend that you completely empty the hot and cold sanitary water system, including
the sanitary circuit and the boiler’s sanitary exchanger. The anti-frost function does not protect
the sanitary circuit outside the boiler.
“Ambient Anti-Frost” Function
Note:
if you want to use the “Ambient Anti-Frost” function that is often available in common room
thermostats or chronothermostats, it is necessary to leave the boiler in Winter
+
mode
and N
OT
in
mode
.
The “Ambient Anti-Frost” function does not protect the sanitary circuit outside the boiler and,
especially, in areas where the heating system doesn’t reach. For this reason, we recommend
that you empty the cold and hot sanitary water from the parts of the system that are at risk of
freezing.
Installation
Law and regulation prescriptions for the installer
Always comply with national and/or local regulation about BOILER INSTALLATION.
Always comply with national and/or local regulation about WORK SAFETY of Personnel in
charge of installation.
Characteristics of the room:
as this boiler has an heat output lower than 35 kW (about 30000 Kcal/h),
it is not required to install the appliance in a dedicated room, provided that the room complies with
the regulation in force and that all installation rules assuring a safe and regular gas boiler operation,
are strictly respected�
Permanent ventilation of the installation room is mandatory and extremely important
when
a boiler with air draught from the installation room (B… appliance type) is installed. Ventilation
must be made and sized in compliance with Laws and Rules in force.
Presence of other appliances:
the presence of other appliances (especially if they interfere with the
boiler draught) can be forbidden by the regulation in force or can require modifications (e.g. the
enlargement of the ventilation opening or the making of new ones).
Instructing the user:
at the end of the installation, the installer must:
• explain the operation of the boiler and its safety devices to the user;
• give this user this booklet and the documentation within his/her competence, duly filled in where
required.
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