Main Dimensions; Antifreeze Protection - Immergas VICTRIX TERA 24 PLUS Instruction Booklet And Warning

1.2 MAIN DIMENSIONS.

1.3 ANTIFREEZE PROTECTION.

Minimum temperature -5°C.
e boiler comes
standard with an antifreeze function that ac-
tivates the pump and burner when the system
water temperature in the boiler falls below 4°C.
In these conditions the boiler is protected against
freezing to an ambient 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 can freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- protect the central heating circuit from freezing
by inserting a good-quality antifreeze liquid
into this circuit, which is specially suited for
central heating systems and which is manu-
facturer guaranteed not to cause damage to
the heat exchanger or other components of
the boiler. e antifreeze liquid must not be
harmful to one's health. e instructions of the
manufacturer of this liquid must be followed
scrupulously regarding the percentage neces-
sary with respect to the minimum temperature
at which the system must be kept.
Attention: the excessive use of glycol could
jeopardise the proper functioning of the ap-
pliance.
An aqueous solution must be made with poten-
tial pollution class of water 2 (EN 1717:2002 or
local standards in force).
e materials used for the central heating circuit
of Immergas boilers withstand ethylene and
propylene glycol based antifreeze liquids (if the
mixtures are prepared perfectly).
For life and possible disposal, follow the sup-
plier's instructions.
- 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 ac-
cessory 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 elec-
tricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in "o " mode.
- the boiler is not in anomaly conditions (Parag.
2.5);
- the essential components of the boiler and/or
antifreeze kit are not faulty.
e warranty does not cover damage due to inter-
ruption 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 falls below 0°C the domestic
hot water and central heating attachment pipes
must be insulated.
e water in the storage tank unit is not protected
against freezing when the boiler is switched o .
6
Key:
V - Electrical connection
G - Gas supply
RU - Storage tank unit return
(optional)
MU - Storage tank unit ow (optional)
RR - System lling
SC - Condensate drain (minimum
internal diameter Ø 13 mm)
M - System ow
R - System return
Height Width Depth
(mm) (mm) (mm)
748 440
CONNECTIONS
GAS D.H.W. SYSTEM
G RR R
3/4" 1/2" 3/4"
256
M
3/4"
2