Boiler Switch-Off; Restore Central Heating System Pressure; Prolonged Inactivity; Permanent Shutdown - Immergas VICTRIX OMNIA Instructions And Recommendations

2.7

BOILER SWITCH-OFF

Switch the boiler off by putting it in "off" mode, disconnect the
onmipolar switch outside of the boiler and close the gas cock up-
stream from the appliance.
Never leave the boiler switched on if left unused for prolonged pe-
riods.
2.8 RESTORE CENTRAL HEATING SYSTEM
PRESSURE
1. Periodically check the system water pressure (the boiler pres-
sure gauge should read a value between 1 and 1.2 bar).
2. If pressure falls below 1 bar (with the system cold), restore nor-
mal pressure via the cock located at the bottom of the boiler
(Par. 1.6).
3. Close the cock after the operation.
4. If the pressure reaches values around 3 bar, there is a risk of
tripping the safety valve (in this case, remove water from a ra-
diator air vent valve until a pressure of 1 bar is achieved, or ask
for assistance from professionally qualified personnel).
5. In the event of frequent pressure drops, contact qualified staff
for assistance to eliminate the possible system leakage.
2.9 DRAINING THE SYSTEM
Emptying the system
1. Ensure that the filling cock is closed.
2. Open the draining cock (Parag. 1.32).
3. Open all vent valves.
4. At the end, close the emptying cock.
5. Close all previously opened vent valves.
If fluid containing glycol was added to the system cir-
cuit, make sure it is recovered and disposed of in accord-
ance with standard EN 1717.
2.10 EMPTYING THE D.H.W. CIRCUIT
To do this, always close the domestic cold water inlet upstream of
the appliance.
Open any domestic hot water tap to discharge the pressure from
the circuit.
2.11 ANTIFREEZE PROTECTION
The boiler has an antifreeze function that switches the burner on
automatically when the temperature falls below 4°C (standard
protection to minimum temperature of -5°C).
All information about the frost protection can be found in the In-
staller section.
In order to guarantee the integrity of the appliance and the do-
mestic hot water heating system in zones where the temperature
falls below zero, we recommend the central heating system is pro-
tected using anti-freeze liquid and installation of the Immergas
Antifreeze Kit in the boiler.

2.12 PROLONGED INACTIVITY

In case of prolonged inactivity (e.g. second home), we recom-
mend:
1. to switch off the power supply;
2. to completely empty the heating circuit and the boiler D.H.W.
circuit. In systems that are drained frequently, filling must be
carried out with suitably treated water to eliminate hardness
that can cause lime-scale.
2.13 CLEANING THE CASE
1. Use damp cloths and neutral detergent to clean the boiler cas-
ing.
Never use abrasive or powder detergents.

2.14 PERMANENT SHUTDOWN

In the event of permanent shutdown of the boiler, contact profes-
sional staff for the procedures and ensure that the electrical, water
and gas supply lines are shut off and disconnected.
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