Immergas Victrix Pro 80 2ErP - 2.8 Boiler shutdown.; 2.9 Restore central heating system pressure.; 2.10 Draining the system.; 2.11 Antifreeze protection.

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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 RESTORE 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.
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 qualied sta for
assistance to eliminate the possible system leakage.
Close the valve aer the operation.
If pressure values reach around 4 bar the safety valve
may be activated.
2.10 DRAINING THE SYSTEM.
To drain the boiler, use the appropriate system drain tting.
Before draining, ensure that the system lling valve 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.
2.11 ANTIFREEZE 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 anti-
freeze 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 CLEANING THE CASE.
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 profes-
sional 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 Not used -
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.