Immergas VICTRIX PRO 35 2ErP - Info Menu; Boiler Shutdown; Restoring Central Heating System Pressure; System Drainage

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INSTALLERUSER
MAINTENANCE TECHNICIAN
2.8 BOILER SHUTDOWN.
Disconnect the main switch (1) taking it to the
“0” position and close the gas cock upstream
from the appliance.
Never leave the boiler switched on if le unused
for prolonged periods.
2.9 RESTORING CENTRAL HEATING
SYSTEM PRESSURE.
Periodically check the system water pressure.
e boiler manometer should indicate a value
not below 0.5 bar.
If the pressure is below 0.5 bar (with cold system)
the water inside the system must be restored.
N.B.: close the valve aer the operation.
If pressure values reach around 4 bar the safety
valve may be activated.
In this case, remove water from an air vent valve
of a radiator until reaching pressure of 1 bar, or
ask for assistance from professionally qualied
personnel.
In the event of frequent pressure drops, contact
qualified staff for assistance to eliminate the
possible system leakage.
2.10 SYSTEM DRAINAGE.
To drain the boiler, use the appropriate system
drain tting.
Before draining, ensure that the system lling
valve is closed.
2.11 ANTIFREEZE PROTECTION.
e boiler is supplied with an antifreeze function
as standard that activates the function of the
pump and the burner when the system water
temperature in the boiler falls below 5°C. e
antifreeze function is guaranteed if the boiler is
fully operative, if it is not in "block" status and
is electrically powered with the main switch on
"ON". To avoid keeping the system switched on
in case of a prolonged absence, the system must
be drained completely or antifreeze substances
must be added to the heating system water. In
systems that are drained frequently, lling must
be carried out with suitably treated water to
eliminate hardness that can cause lime-scale.
2.12 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.13 DECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact professional sta for the procedures and
ensure that the electrical, water and gas supply
lines are shut o and disconnected.
Info menu
Menu item Description Unit of measurement
P01 Flame current μA
P02 Flow NTC probe temperature reading °C / °F
P03 Return NTC probe temperature reading °C / °F
P04 DHW NTC probe temperature reading (if installed) °C / °F
P05 System water ow l/minute
P06 Operating power %
P07 Fan speed requested by the system RPM / 50
P08 Current fan speed RPM / 50
P09 Flue NTC probe temperature reading °C / °F
P10
Common ow probe temperature reading (if installed)
or boiler ow probe (based on the system’s conguration)
°C / °F
P11 External probe temperature reading (if installed) °C / °F
P12 Not used -
P13 Flow temperature requested by the system in heating °C / °F
P14 Flow temperature requested by the system in DHW °C / °F
P15 Not used -
P16 Number of burners on in simple cascade mode no.
P17 Number of displays on no.
2.7 INFO MENU.
Press and hold down "B" to access the info menu
containing all of the various information relative
to boiler operation.
Once you are inside the menu, you will mo-
mentarily see the parameter number followed
by the value.
To scroll through the various parameters, press
buttons + and - (ref. 2 g. 2-1).
To exit the menu, press and hold "B" down again.
While the parameter value is being displayed it
is possible to momentarily see the relative code
again by pressing button "A". e viewable pa-
rameters are listed in the following tables.
2-10