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2.13 SWITCHING OFF.
Switch off the indoor unit by setting the “stand-by” mode from
the control panel, disengage the external omnipolar switches of
the indoor and outdoor units and close the gas tap upstream of
the indoor unit.
2.14 RESTORE CENTRAL HEATING SYSTEM
PRESSURE.
Periodically check the system water pressure. The boiler pressure
gauge should read a value of between 1 and 1.2 bar.
If pressure falls below 1 bar (with the circuit cold), restore normal
pressure via the cock located at the bottom of the boiler (Part. 1
Fig. 9).
N.B.:
close the cock after the operation.
If pressure values reach around 3 bar the safety valve may be
activated.
In this case, remove water from a radiator air vent valve until a pressure
of 1 bar is achieved, or ask for assistance from professionally qualified
personnel.
In the event of frequent pressure drops, contact qualified staff for
assistance to eliminate the possible system leakage.
2.15 DRAINING THE SYSTEM.
To drain the indoor unit, use the special draining valve (Det. 2
Fig. 9)
Before draining, ensure that the filling cock is closed.
ATTENTION:
if glycol was input in the system’s circuit,
make sure it is discharged into the waste
water system, pursuant to regulation EN 1717.
2.16 EMPTYING THE D.H.W. CIRCUIT.
To do this, always close the domestic cold water inlet upstream of the
indoor unit.
Open any domestic hot water tap to discharge the pressure from
the circuit.
2.18 ANTIFREEZE PROTECTION.
The hybrid heat pump is fitted with an antifreeze function which
is active on different levels. The first level consists in igniting the
circulator according to the temperatures detected on the outdoor
unit.
ATTENTION:
This function has priority on the pro-
duction of Domestic Hot Water, therefo-
re it is possible that in case of prolonged DHW
withdrawals and installation in very cold areas,
the production of Domestic Hot Water may be
interrupted.
A second level entails the ignition of the indoor unit and this is
determined according to the temperatures detected by the indoor
or outdoor units. All information relative to the anti-freeze pro-
tection is stated in Par. 1.3.
In order to guarantee the integrity of the Victrix Hybrid and the
domestic hot water heating system in zones where the temperature
drops below zero, we recommend the central heating system is
protected using anti-freeze liquid and installation of the Immergas
Antifreeze Kit.
In the case of prolonged inactivity (second case), we also recom-
mend that:
- the electric power supply is disconnected;
- the heating circuit and boiler domestic water circuit must be
drained. In systems that are drained frequently, filling must be
carried out with suitably treated water to eliminate hardness that
can cause lime-scale.
2.19 CLEANING THE CASE.
Use damp cloths and neutral detergent to clean the indoor and
outdoor units casing. Never use abrasive or powder detergents.
2.20 DECOMMISSIONING.
In the event of permanent shutdown of the Victrix Hybrid, contact
professional staff for the procedures and ensure that the electrical,
water and gas supply lines are shut off and disconnected.
