Using The Boiler - Immergas VICTRIX EXA 24 X 1 ERP Instruction Booklet And Warning

2.4 USING THE BOILER.

The Victrix EXA 24 X 1 ErP boiler was designed
to operate as an appliance for room central heating
only, or coupled to a specific optional kit, for central
heating and DHW production (when the boiler is
connected to an external storage tank unit). For this
reason the boiler control panel has a knob to adjust the
temperature of DHW, but its operation is only activated by the
optional kits that also enable the production of DHW. Without
coupling to these specific kits, the functioning of this knob and
all functions referring to DHW are inhibited, apart from the
calibration phase and scrolling the P.C.B. programming menu.
Before ignition make sure the heating system is filled with water
and that the manometer (7) indicates a pressure of 1 ÷ 1.2 bar.
- Open the gas cock upstream from the boiler.
- Press the button (1) until the display switches on. The boiler now
returns to the state prior to switch-off.
- If the boiler is in stand-by, press the button (1) again to activate
it. If this is not the case, go to the next point.
- Then press the button (2) in sequence and set the boiler in the
summer ( ) or winter (
• Summer (
): in this mode the boiler only works to produce
DHW (when the boiler is connected to the external storage tank
unit); the temperature is set via the selector (5) and the relative
temperature is shown on the display via the indicator (14).
• Winter ( ): in this mode the boiler works both for producing
domestic hot water (when the boiler is connected to the external
storage tank unit) and for central heating. The temperature of the
DHW is always regulated via the selector (5), the heating tem-
perature is regulated via selector (6) and the relative temperature
is shown on the display via the indicator (14).
From this moment the boiler functions automatically. With no
demand for heat (central heating or domestic hot water produc-
tion) the boiler goes to "standby" function, equivalent to the boiler
being powered without presence of flame. Each time the burner
ignites, the relative flame present symbol is displayed (10) with
relative output scale.
• Operation with Comando Amico Remoto
al). If the CAR
is connected, the (
V2
the display. The boiler regulation parameters can be set via the
CAR control panel and the reset button (3) remains active on
V2
the boiler control panel, along with the switch-off button (1)
("off " mode only) and the display where the functioning state
is shown.
Caution: if the boiler is switched "off " the CAR
the connection error symbol "ERR>CM", the CAR
powered constantly so as not to lose the stored programs.
• Solar operating mode (
on this boiler model.
• Operation with optional external probe (
system with optional external probe, the boiler flow temperature
for room central heating is managed by the external probe de-
pending on the external temperature measured (Par. 1.10). The
flow temperature can be modified by selecting the functioning
curve via the selector switch (6) (or on the CAR
if connected to the boiler) selecting a value from "0 to 9".
With external probe present, the relative symbol (18) will appear
) position.
(CAR ) (Option-
V2 V2
) symbol will appear on
will display
V2
is however
V2
). This function cannot be activated
). In the case of a
control panel,
V2
on the display. In the central heating phase, if the temperature
of the water contained in the system is sufficient to heat the
radiators, the boiler can only function with the activation of the
pump.
• "Stand-by" mode. Press button (1) repeatedly until the symbol
( ) appears. From now on the boiler remains inactive and the
antifreeze function, pump anti-block function and 3-way and
signalling of any anomalies is guaranteed.
ATTENTION:
in these conditions the boiler is still
powered.
• "Off " mode. By holding the button (1) down for 8 seconds, only
the central point remains lit on the display, and the boiler is off
completely. The safety functions are not guaranteed in this mode.
ATTENTION:
in these conditions the boiler is con-
sidered still live even if there are no
functions active.
• "Automatic vent" mode. When the function is enabled, every
time the boiler is electrically powered, the system automatic
vent function is activated (lasting 8 minutes). This function is
displayed via a countdown signalled by the indicator (14). During
this period the DHW and CH functions are not active.
The "automatic vent" can be annulled by pressing the "reset"
button (4).
• Display operation. The display lights up while the control panel
is being used; after a set inactivity period, the brightness drops
until only the active symbols are displayed. The lighting mode
can be varied via parameter t8 in the P.C.B. programming menu.
41