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1.3 VICTRIX HYBRID INSTALLATION.
Victrix Hybrid must be installed as per the hydraulic diagram
(Fig. 2).
Basic requirements.
ATTENTION:
The minimum water content required
within the system is 20 litres; otherwise,
it will be necessary to install an inertial storage
tank (optional).
For proper system operation, make sure that
the minimum flow rate in operating conditions
never drops below 500 l/h.
ATTENTION:
When the circulation within each room
central heating loop is controlled by re-
motely operated valves, it is important
to guarantee the minimum water content (20
litres), even if all the valves are closed.
When the circulation within each or certain
room central heating loops is controlled by
remotely operated valves, it is important to
guarantee the minimum flow rate, even if all
the valves are closed. It is necessary to have
a loop that is always open on the system (by-
pass or non-intercepted zone), to allow some
functions such as, for example, the antifreeze
function.
ATTENTION:
Make sure that the expansion vessel
present in the indoor unit is sufficient
for the hydraulic circuit; otherwise use the
optional vessel.
ATTENTION:
If you are using one or more booster
pumps it is essential to install a hydrau-
lic separator (not supplied by Immergas)
downstream of the indoor unit. The minimum
required 20l must be guaranteed between the
indoor unit and the hydraulic separator.
ATTENTION:
It is recommended to connect the flow
from heat pump (MHT) of the outdoor
unit to the system return (R) of the indoor unit.
ATTENTION:
With Victrix Hybrid, in case of connec-
tion to the storage tank unit, the return
present on the storage tank unit (RU) must be
connected to the return of the Outdoor unit
(RHT).
The storage tank unit return connection, pre-
sent in the indoor unit, is not used and must
be closed.
ATTENTION:
If installing a kit or servicing the
Victrix Hybrid, always empty the sy-
stem’s circuit first so as not to compromise
the appliance’s electrical safety of the same
(see Par. 2.16).
Only for Audax.DK4.
ATTENTION:
the appliance operates with R32 refri-
gerant gas.
This gas is ODOURLESS.
Pay the utmost attention
Strictly follow the instruction handbook of the
Audax DK4 outdoor unit before installation
and any type of operation on the chiller line.
ATTENTION:
R32 refrigerant gas belongs to the low
flammability refrigerant category: class
A2L according to standard ISO 817. It
guarantees high performance with low
environmental impact. The new gas reduces
the potential environmental impact by one
third compared to R410A, having less effect
on global warning (GWP 675).
