Password-Protected Special Functions; Screed Heater Function; Automatic Vent Function (Dl); Flue Installation (Fu) - Immergas Victrix Tera 28 1 Instruction Booklet And Warning

3.9 PASSWORD-PROTECTED SPECIAL
FUNCTIONS.
Attention: the boiler is equipped with some special
functions, access to which is granted if this is in
stand-by ( ) .
IMPORTANT NOTE: if the boiler is connect-
ed to the CAR the "stand-by" function can
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only be activated via the remote control panel.
Press and hold the " " button for more than
5 seconds. The display will show two dashes "--"
flashing. Now enter the password to access the
programming menus.
To enter the first digit use the buttons to adjust
the DHW " ", to enter the second digit
use the buttons to adjust the central heating
temperature " ".
To confirm the password and access the menu,
press the operating mode button "
Once the menu has been accessed, it is possible
to cyclically scroll the three available functions
(dl, MA, FU) by pressing the DHW buttons "
", to access the menu press the button "
" to exit wait 15 minutes or press the
button " ".

3.10 SCREED HEATER FUNCTION.

The boiler is equipped with a function to perform
the thermal shock on new radiant panel systems,
as required by the applicable standard.
Attention: contact the manufacturer of the radi-
ant panels for the thermal shock characteristics
and its correct execution.
N.B.: to be able to activate the function there
must be no remote control connected, while
in case of system divided into zones it must
be properly connected, both hydraulically and
electrically.
The function is activated from boiler in OFF by
pressing and holding the buttons "Reset", "Info"
and "Stand-by" for more tan 5 seconds.
The function lasts in total 7 days, 3 days at the
lower temperature set and 4 days at the higher
temperature set (Fig. 50).
After activating the function, the lower set (range
20 ÷ 45 °C default = 25 °C) and the higher set
(range 25 ÷ 55 °C default = 45 °C) appear in
sequence.
The temperature is selected by means of the
buttons " " and confirmed by pressing
the button " ".
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The display now shows the countdown of days
alternated with the current flow temperature,
as well as the normal operating symbols of the
boiler.
In case of failure or lack of supply voltage, the
function is suspended and will resume when the
normal operating conditions are reset from the
".
point where it was interrupted.
When the time expires, the boiler automatically
goes back to "Stand-by" mode, the function
can also be stopped by pressing the button "
".
3.11 AUTOMATIC VENT FUNCTION
(DL).
In the case of new central heating systems and
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in particular mode for floor systems, it is very
important that deaeration is performed correctly.
The function consists of the cyclic activation of
the pump (100 s ON, 20 s OFF) and the 3-way
valve (120 s D.H.W., 120 s C.H.).
The function is activated by accessing the special
"dl" function as described in Paragraph 3.9.
The function lasts for 16.5 hours and it can be
stopped by simply pressing the button "
Activation of the function is signalled by the
countdown shown on the indicator (20).
TM (°C)
UPPER
SET
LOWER
SET
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3.12 FLUE INSTALLATION (FU).

To activate the "Flue" function access the special
functions as described in Paragraph 3.9 and
select the "FU" function.
Attention: Before performing the test, ensure
that the condensate drain trap has been filled
correctly and check that there are no obstructions
in the air intake circuit and flue exhaust.
Using this function activates the fan at a fixed
speed (6000 rpm) for 15 minutes.
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In this phase the symbols (
) are displayed flashing, while the symbol
( ) is displayed permanently on, the function
can be stopped by simply pressing the button "
".

3.13 MAINTENANCE FUNCTION (MA).

Using this function you can activate some op-
erating devices of the boiler without starting it,
thus verifying the functionality.
The function is active for 15 minutes and it can
be stopped by pressing the button "
To activate the "Maintenance" function access
the special functions as described in Paragraph
3.9 and select the "MA" function.
The following loads can be activated within this
function:
- Fan (Fn): the fan is brought to ignition speed.
Using the buttons "
or decrease the fan speed.
- Circulator (Pu): the circulator is brought to
maximum speed, the relative speed is shown
on the display, using the buttons "
can increase or decrease the circulator speed.
- Three-way (3d): the symbol is shown on the
display according to the position of the valve,
DHW ( ) or central heating (
the buttons " " you can change the valve
position, taking care to wait for the completion
of passage between statuses.
- Configurable relay (rl): if the configurable relay
is present on the boiler P.C.B., it is activated.
".
) and (
".
" you can increase
" you
), using
DAYS
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