2525
INSTALLERUSER
MAINTENANCE TECHNICIAN
2.7 BOILER SHUTDOWN
Switch the boiler o by putting it in “o” mode,
disconnect the onmipolar switch outside of the
boiler and close the gas cock upstream from the
appliance. Never leave the boiler switched on if
le unused for prolonged periods.
2.8 RESTORING CENTRAL HEATING
SYSTEM PRESSURE.
Periodically check the system water pressure.
e boiler pressure gauge should read a pressure
between 1 and 1.2 bar.
If the pressure falls below 1 bar (with the circuit
cold) restore normal pressure via the valve located
at the bottom of the boiler (Fig. 1-3).
N.B.: close the cock aer the operation.
If pressure values reach around 3 bar the safety
valve may be activated.
In this case, remove water from an air vent valve
of a radiator until 1 bar is reached or ask for
assistance from an authorised company.
In the event of frequent pressure drops, contact
a qualied rm for assistance to remove any
system leakage.
2.9 SYSTEM DRAINING.
To drain the boiler, use the special draining
valve (Fig. 1-3).
Before draining, ensure that the lling cock is
closed.
2.10 ANTIFREEZE PROTECTION.
The “Victrix TT” series boiler features an
antifreeze function that lights the burner auto-
matically when the temperature falls below 4°C
(standard protection down to min. temperature
of -5°C). All information relative to the an-
ti-freeze protection is stated in Par. 1.3. In order
to guarantee the integrity of the appliance and
the domestic hot water heating system in zones
where the temperature falls below zero, we rec-
ommend the central heating system is protected
using anti-freeze liquid and installation of the
Immergas Anti-freeze Kit in the boiler. In the
case of prolonged inactivity (second case), we
also recommend that:
- disconnect the electric power supply;
- the central heating circuit and boiler domestic
hot water circuit must be drained. In systems
that are drained frequently, lling must be car-
ried out with suitably treated water to eliminate
hardness that can cause lime-scale.
2.11 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.12 DECOMMISSIONING.
In the event of permanent shutdown of the
boiler, contact an authorised company for the
suitable procedures and also ensure the electri-
cal, water and fuel supply lines are shut o and
disconnected.
2.6 INFORMATION MENU.
By pressing the "Info" button (5), the “Infor-
mation menu” is activated for at least 1 second,
displaying some boiler operating parameters.
Id
Parameter
Description
d 0.0 Not used
d 0.1 Displays the combustion signal
d 0.2 Displays the primary exchanger output instant heating ow temperature
d 0.3 Displays the instant output temperature from the DHW exchanger
d 0.4 Displays the values set for central heating set
d 0.5 Displays the values set for DHW set
d 0.6
Displays the external environment temperature (if optional external probe present)
If the temperature is below zero, the value is displayed ashing.
d 0.7 Displays the temperature of the inlet DHW (with optional DHW inlet probe present)
d 0.8 Not used
d 09
Displays the list of the last ve anomalies.
(to scroll the list, turn the CH temperature selector (4))
d 1.0 Anomaly list reset. Once “d 1.0” is displayed, press the Reset button; deletion is conrmed via the “88” symbols ashing for two seconds.
d 1.1 Displays the temperature read on the safety ow probe
d 1.2 Displays the pump operating speed
d 1.3 Not used
d 1.4 Displays the pump ow rate (lh/100)
d 1.5 Displays the fan operating speed (rpm/100)
d 1.6 Displays the temperature read on the ue probe
Press the "Info" button (5) to scroll the various
parameters.
To exit the menu, press the “Info” button (5) up
to the end of the list, or by pressing the “Reset”
button (2) or by waiting for 15 minutes.
With the menu active, the indicator (14) will
alternately show the indication of the parameter
via the letter “d” plus the number of the param-
eter that is being displayed and the value of the
parameter itself.
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