Antifreeze Protection - Immergas Victrix Tera 28 1 Instructions And Warnings

1.4

ANTIFREEZE PROTECTION.

Minimum temperature –5 °C.
The boiler comes standard with an antifreeze function
that activates the pump and burner when the system
water temperature drops below 4°C.
In these conditions the boiler is protected against freez-
ing down to a temperature of -5°C.
Minimum temperature –15 °C.
If the boiler is installed in a place where the temperature drops
below -5°C, the appliance may freeze.
To prevent the risk of freezing follow the instructions below:
- protect the central heating circuit from freezing by inserting
a good-quality antifreeze liquid, which is specially suited for
central heating systems and which is manufacturer guaranteed
against damage to the heat exchanger or other components.
The antifreeze liquid must not be harmful to one's health. The
instructions of the manufacturer of the liquid must be strictly
followed regarding the necessary percentage with respect to
the minimum temperature provided for.
N.B.: the excessive use of glycol could jeopardise the proper
functioning of the appliance.
- An aqueous solution must be made with potential pollution
class of water 2 (EN 1717:2002).
- The central heating circuit of Immergas boilers are made from
materials that resist wear caused by ethylene and propylene
glycol based antifreeze liquids (if the mixtures are prepared
perfectly).
- For life and possible disposal, follow the manufacturer's in-
structions of liquid.
- Protect the domestic hot water circuit against freezing by
using an accessory that is supplied on request (anti-freeze
kit) comprising two electric heating elements, the relevant
cables and a control thermostat (carefully read and follow the
installation instructions contained in the accessory kit pack).
In these conditions the boiler is protected against freezing to
temperature of -15°C.
Boiler antifreeze protection (both -5°C and -15°C) is thus
ensured only if:
- the boiler is correctly connected to gas and electricity power
supply circuits;
- the boiler is powered constantly;
- the boiler is not in "off " mode;
- the boiler is not in anomaly conditions (Paragraph 2.5);
- the essential components of the boiler and/or antifreeze kit
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 previous page.
N.B.: if the boiler is installed in places where the
temperature drops below 0°C, the domestic hot
water and central heating attachment pipes must
be insulated.
Note: the antifreeze systems described in this chap-
ter are only to protect 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.
9