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Minimum temperature -15°C
In these conditions the boiler is protected against freezing to temperature of -15°C.
- Protect the domestic hot water circuit against freezing by using an accessory that is supplied on request (antifreeze kit) comprising two
electric heating elements, the relevant wiring and a control thermostat (carefully read the installation instructions contained in the
accessory kit pack).
Boiler antifreeze protection is thus ensured only if:
- the boiler is correctly connected to gas and electricity power supply circuits;
- the boiler is constantly powered;
- the boiler is not in “off” mode;
- the boiler is not in anomaly conditions (Par. 2.7);
- the essential components of the boiler are not faulty.
The warranty does not cover damage due to interruption of the electrical power supply and failure to comply with that stated on the pre-
vious page.
If the boiler is installed in places where the temperature falls below 0°C the domestic hot water and central heating attachment
pipes and the condensate drain pipe must be insulated.
The freezing protection systems described in this chapter are installed only for the protection of the boiler. The presence of these
functions and devices does not exclude the possibility of parts of the system or domestic hot water circuit outside the boiler
from freezing.
1.5 BOILER CONNECTION GROUP
The connection unit consisting of all the necessary parts to perform the hydraulic and gas system connections of the appliance comes as
standard with the boiler, perform the connections in accordance with the type of installation to be made and respecting the arrangement
shown in the figure.
(Fig. 4):