12
INS
TALL
AT
O
RE
U
TENTE
MANU
TENT
O
RE
Victrix Hybrid antifreeze protection.
Freezing may damage the system. To prevent free-
zing of the hydraulic components, Victrix Hybrid is
equipped with special antifreeze protection functions,
which include the activation of the pump and burner
of the indoor unit in case of low temperatures.
These functions allow to protect the unit up to the minimum
temperatures indicated below:
-Outdoor unit: Minimum temperature -15°C.
-Indoor unit: Minimum temperature -5°C.
ATTENTION:
if the boiler is installed in places where
the temperature falls below 0°C the
domestic hot water and central heating at-
tachment pipes must be insulated.
Furthermore, if the control panel is used for room
temperature control (and a room thermostat is not
installed) there is also a room antifreeze function (see
Par. 3.22).
If the indoor unit must be installed in a place where
the minimum temperature may drop below -5°C, up
to -15°C, follow the instructions below to prevent
freezing:
- Protect the central heating circuit from freezing by
introducing an anti-freeze liquid into this circuit, as indicated
in the related paragraph. This will also protect the outdoor
unit and the whole central heating system.
- Protect the domestic hot water circuit of the indoor unit
against freezing by using an accessory that is supplied on
request (antifreeze kit) comprising an electric resistance, the
relevant wiring and a control thermostat (carefully read and
follow the installation instructions contained in the accessory
kit pack).
If the outdoor unit is installed in an area with temperatures
>5°C and high relative humidity for at least three consecutive
days, the optional anti-freeze resistance kit must be installed
to prevent the floor from freezing with condensate drain.
Freeze protection of the outdoor and indoor units by
means of the antifreeze function (including -15°C
protection of the DHW circuit with resistance kit) is
ensured only if::
- the indoor unit is correctly connected to gas the
power supply circuit
- the units and control panel are correctly connected to the
electrical power supply circuit and connected to one another;
- the units and control panel are constantly supplied with po-
wer;
- the indoor unit is not in “off” or “stand-by” mode
- the indoor and outdoor units are not malfunctioning (Par
. 2.13
);
- the antifreeze unit and/or kit essential components 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 following paragraph “-Antifreeze protection of the system
by adding antifreeze liquid”.
If the previous conditions are not followed (for exam-
ple in case of an interruption of the electrical power
supply), these antifreeze functions are not able to
guarantee the protection of the outdoor and indoor
unit against freezing.
Therefore, the circuit must be protected from freezing, by
performing one of the following actions:
- Protect the central heating circuit from freezing by introdu-
cing an anti-freeze liquid as indicated in the related paragraph.
- Install the antifreeze protection valves, that drain the water
from the system before it freezes. The antifreeze protection
valve that protects the outdoor unit is provided as standard.
Necessity to install protection valves on the system to be
evaluated. For further details, refer to the relative section in
the manual for the installation of the outdoor unit.